{"id":39206,"date":"2023-05-14T04:37:33","date_gmt":"2022-12-24T03:54:45","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%88%9b%e5%bb%ba%e5%b9%b6%e7%90%86%e8%a7%a3angular2%e7%9a%84todo%e5%88%97%e8%a1%a8\/"},"modified":"2024-04-30T04:03:15","modified_gmt":"2024-04-29T20:03:15","slug":"%e5%88%9b%e5%bb%ba%e5%b9%b6%e7%90%86%e8%a7%a3angular2%e7%9a%84todo%e5%88%97%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%88%9b%e5%bb%ba%e5%b9%b6%e7%90%86%e8%a7%a3angular2%e7%9a%84todo%e5%88%97%e8%a1%a8\/","title":{"rendered":"\u521b\u5efa\u5e76\u7406\u89e3Angular2\u7684TODO\u5217\u8868"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u901a\u8fc7\u786e\u8ba4\u7531Angular2 Dart\u7248\u672c\u521b\u5efa\u7684\u7b80\u5355Todo List\u5e94\u7528\u7684\u8fd0\u884c\uff0c\u901a\u8fc7\u89e3\u91ca\u8be5\u4ee3\u7801\u6765\u4e86\u89e3Angular2\u7684\u57fa\u7840\u3002<\/p>\n<p>\u8fd9\u7bc7\u6587\u7ae0\u662f\u5728Angular2\u53d1\u5e03beta\u7248\u4e4b\u540e\uff0c\u6211\u5728\u5e74\u672b\u5e74\u59cb\u5f00\u59cb\u5b66\u4e60Angular2\uff0c\u5728\u6b64\u57fa\u7840\u4e0a\u53c2\u8003\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u7279\u610f\u5c06\u4ee3\u7801\u6539\u5199\u4e3aDart\u7248\u672c\uff0c\u5e76\u589e\u52a0\u4e86\u4e00\u4e9b\u5185\u5bb9\u3002\u5982\u679c\u53d1\u73b0\u4efb\u4f55\u9519\u8bef\uff0c\u8bf7\u5728\u8bc4\u8bba\u680f\u4e2d\u901a\u77e5\u6211\u3002<\/p>\n<p>\u5982\u679c\u60a8\u60f3\u9605\u8bfbTypeScript\u7248\u7684\u89e3\u91ca\uff0c\u6216\u8005\u60f3\u8981\u8bfb\u7b80\u660e\u7684\u8bf4\u660e\uff0c\u8bf7\u9605\u8bfb\u539f\u6587\u3002<\/p>\n<h2>Angular2 Dart<br \/>\nAngular2 Dart \u4e2d<\/h2>\n<p>Angular2\u7684Dart\u7248\u57fa\u672c\u4e0a\u662f\u5c06\u4f7f\u7528TypeScript\u5f00\u53d1\u7684Angular\u8f6c\u8bd1\u6210Dart\u7684\u7248\u672c\uff08\u901a\u8fc7ts2dart\uff09\uff0c\u56e0\u6b64API\u51e0\u4e4e\u76f8\u540c\u3002\uff08\u4f46\u6839\u636e\u5f00\u53d1\u8fdb\u5c55\u7684\u4e0d\u540c\uff0cDart\u7248\u7684\u90e8\u5206API\u53ef\u80fd\u4f1a\u6709\u6240\u5ef6\u8fdf\uff0c\u6216\u8005\u67d0\u4e9b\u529f\u80fd\u53ef\u80fd\u53ea\u5728Dart\u7248\u4e2d\u4ee5\u8bd5\u9a8c\u6027\u652f\u6301\u7684\u65b9\u5f0f\u63d0\u4f9b\u3002\uff09\u56e0\u6b64\uff0c\u5982\u679c\u5b66\u4f1a\u4e86TypeScript\u7248\uff0c\u4e5f\u53ef\u4ee5\u6beb\u65e0\u95ee\u9898\u5730\u8fdb\u884cDart\u7248\u7684\u5f00\u53d1\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u7531\u4e8eDart\u7684\u8bed\u4e49\u7b80\u5355\u4e14\u5b66\u4e60\u6210\u672c\u8f83\u4f4e\uff0c\u6240\u4ee5\u5728\u719f\u6089TypeScript\u6216Java\u7b49\u8bed\u8a00\u7684\u60c5\u51b5\u4e0b\u5b66\u4e60Dart\u76f8\u5bf9\u5bb9\u6613\u3002\u6b64\u5916\uff0cDart\u7684SDK\u975e\u5e38\u5b8c\u5584\u4e14\u7a33\u5b9a\uff0c\u7279\u522b\u662f\u5bf9\u4e8e\u6d41\u3001\u5f02\u6b65\/\u7b49\u5f85\u7b49\u5f02\u6b65API\u548c\u533a\u57df\u7684\u5f15\u5165\uff0c\u5b83\u662f\u4e00\u4e2a\u5f3a\u529b\u652f\u6301\u5f02\u6b65\u7f16\u7a0b\u7684\u8bed\u8a00\u3002<\/p>\n<p>\u5982\u679c\u8981\u5347\u7ea7\u73b0\u6709\u9879\u76ee\u5230Angular2\uff0c\u76ee\u524d\u91c7\u7528ES6\u3001ES5\u6216TypeScript\u662f\u5408\u9002\u7684\u9009\u62e9\uff0c\u4f46\u5bf9\u4e8e\u65b0\u9879\u76ee\uff0c\u8003\u8651\u91c7\u7528Dart\u4e5f\u662f\u4e00\u79cd\u4e0d\u9519\u7684\u9009\u62e9\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u7528Dart\u7f16\u5199\u7684\u793a\u4f8b\u4ee3\u7801\u5df2\u7ecf\u5728Github\u4e0a\u653e\u7f6e\u3002<br \/>\nhttps:\/\/github.com\/ntaoo\/angular2_dart_todo\/releases\/tag\/20160104-qiita<\/p>\n<h1>\u6211\u9700\u8981\u786e\u8ba4Todo List\u7684\u64cd\u4f5c\u662f\u5426\u6b63\u5e38\u3002<\/h1>\n<h2>Dart SDK\u7684\u5b89\u88c5<\/h2>\n<p>\u5982\u679c\u5c1a\u672a\u5b89\u88c5Dart SDK\uff0c\u8bf7\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\u5b89\u88c5\uff1ahttps:\/\/www.dartlang.org\/downloads\/<br \/>\n\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fMac\u7cfb\u7edf\uff0c\u5219\u53ef\u4ee5\u901a\u8fc7Homebrew\u8fdb\u884c\u5b89\u88c5\u3002<\/p>\n<pre class=\"post-pre\"><code>brew tap dart-lang\/dart\r\nbrew <span class=\"nb\">install <\/span>dart <span class=\"nt\">--with-content-shell<\/span> <span class=\"nt\">--with-dartium<\/span>\r\n<\/code><\/pre>\n<h2>\u786e\u8ba4\u884c\u52a8<\/h2>\n<p>\u6211\u8981\u514b\u9686 angular2_dart_todo\u3002<\/p>\n<pre class=\"post-pre\"><code>git clone https:\/\/github.com\/ntaoo\/angular2_dart_todo.git\r\n<\/code><\/pre>\n<h3>\u8fdb\u884c\u516c\u5171\u83b7\u53d6<\/h3>\n<p>\u8bf7\u8fd0\u884c pub get\u3002pub get \u7c7b\u4f3c\u4e8e npm install\u3002<\/p>\n<pre class=\"post-pre\"><code>pub get\r\n<\/code><\/pre>\n<h3>\u5f00\u53d1\u670d\u52a1\u5668<\/h3>\n<p>\u8bf7\u63a5\u4e0b\u6765\u6267\u884cpub serve\u547d\u4ee4\u3002\u8fd9\u5c06\u542f\u52a8Dart\u9879\u76ee\u7684\u5f00\u53d1\u670d\u52a1\u5668\uff08\u9ed8\u8ba4\u4e3ahttp:\/\/localhost:8080\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code>pub serve\r\n<\/code><\/pre>\n<h3>Dartium\uff0d\u8fbe\u7279\u7433<\/h3>\n<p>\u5728Dart\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528Dartium\u4f5c\u4e3a\u5f00\u53d1\u7528\u6d4f\u89c8\u5668\u3002\u5bf9\u4e8eMac\u7528\u6237\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4ee5checked mode\u542f\u52a8Dartium\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">DART_FLAGS<\/span><span class=\"o\">=<\/span><span class=\"s1\">'--checked'<\/span> open \/usr\/local\/opt\/dart\/Chromium.app\r\n<\/code><\/pre>\n<p>\u5728\u5b9e\u9645\u7684\u5f00\u53d1\u4e2d\uff0c\u6700\u597d\u4f7f\u7528WebStorm\u7b49IDE\u542f\u52a8Dartium\u3002<\/p>\n<p>\u5f53\u60a8\u8bbf\u95ee http:\/\/localhost:8080 \u65f6\uff0c\u5e94\u8be5\u4f1a\u663e\u793a\u4ee5\u4e0b\u754c\u9762\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Screen Shot 2016-01-02 at 12.15.20 AM.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/27-0.png\" alt=\"Screen Shot 2016-01-02 at 12.15.20 AM.png\" \/><\/div>\n<p>\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u5982\u679c\u5728Chrome\u6216\u5176\u4ed6\u73b0\u4ee3\u6d4f\u89c8\u5668\u4e2d\u6253\u5f00URL\uff0c\u5f00\u53d1\u670d\u52a1\u5668\u4f1a\u81ea\u52a8\u6839\u636e\u9700\u8981\u5c06JS\u4ee3\u7801\u8fdb\u884c\u7f16\u8bd1\u3002\u56e0\u6b64\uff0c\u663e\u793a\u9700\u8981\u82b1\u8d39\u4e00\u4e9b\u65f6\u95f4\uff08\u5927\u7ea6\u51e0\u5341\u79d2\uff09\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Screen Shot 2016-01-01 at 11.22.52 PM.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/29-0.png\" alt=\"Screen Shot 2016-01-01 at 11.22.52 PM.png\" \/><\/div>\n<p>\u4f7f\u7528\u642d\u8f7dDartVM\u7684Dartium\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884cDart\u4ee3\u7801\uff0c\u65e0\u9700\u5c06\u5176\u7f16\u8bd1\u4e3aJS\uff0c\u56e0\u6b64\u6784\u5efa\u8fc7\u7a0b\u4f1a\u77ac\u95f4\u5b8c\u6210\u3002\u4e0d\u9700\u8981\u8003\u8651\u7f16\u8bd1\u65f6\u95f4\u3002\u53ea\u9700\u91cd\u65b0\u52a0\u8f7dDartium\u9009\u9879\u5361\uff0c\u5373\u53ef\u5b9e\u73b0\u5feb\u901f\u5730\u8fdb\u884c\u4ee3\u7801\u66f4\u6539\u548c\u6784\u5efa\u7684\u5faa\u73af\u3002\u7531\u4e8e\u53ef\u4ee5\u4f7f\u7528\u8c03\u8bd5\u5668\uff0c\u56e0\u6b64\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u5e94\u4f7f\u7528Dartium\u3002<\/p>\n<h3>\u65e2\u7136\u5982\u6b64\uff0c\u6211\u5c31\u8bd5\u7740\u6784\u5efa\u4e00\u4e0b\u3002<\/h3>\n<p>\u5728\u90e8\u7f72\u65f6\uff0c\u9700\u8981\u5c06Dart\u7f16\u8bd1\u4e3aJavaScript\u7b49\u8fdb\u884c\u6784\u5efa\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u9700\u8981\u786e\u8ba4\u4e00\u4e0b\u3002\u4f7f\u7528pub build\u547d\u4ee4\u53ef\u4ee5\u5b8c\u6210\u5305\u62ec\u4eceDart\u5230JavaScript\u7684\u7f16\u8bd1\u5728\u5185\u7684\u6784\u5efa\u8fc7\u7a0b\u3002<\/p>\n<pre class=\"post-pre\"><code>pub build\r\n<\/code><\/pre>\n<p>\u6211\u5c06\u5c3d\u5feb\u542f\u52a8\u672c\u5730\u670d\u52a1\u5668\u5e76\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nb\">cd <\/span>build\/web\r\npython <span class=\"nt\">-m<\/span> SimpleHTTPServer\r\n<\/code><\/pre>\n<p>\u5b83\u5e94\u8be5\u80fd\u5728\u73b0\u4ee3\u6d4f\u89c8\u5668\u4e0a\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<p>\u5728 build\/web\/main.dart.js \u6587\u4ef6\u4e2d\uff0c\u5e94\u7528\u7a0b\u5e8f\u7684\u6574\u4e2a JavaScript \u4ee3\u7801\u88ab\u7f16\u8bd1\u5e76\u5408\u5e76\u4e3a\u4e00\u4e2a\u6587\u4ef6\u3002\u8fd9\u4e2a main.dart.js \u6587\u4ef6\u5927\u5c0f\u4e3a 460KB\uff0c\u538b\u7f29\u540e\u4e3a 127KB\u3002\u53ef\u4ee5\u8bf4\uff0c\u76f8\u5bf9\u4e8e\u50cf Dart \u548c Angular2 \u8fd9\u6837\u4e30\u5bcc\u7684\u6846\u67b6\u6765\u8bf4\uff0c\u8fd9\u4e2a\u5927\u5c0f\u76f8\u5f53\u5408\u7406\u3002<\/p>\n<p>Angular \u56e2\u961f\u4e00\u76f4\u81f4\u529b\u4e8e\u51cf\u5c0f Dart \u7248\u672c\u7f16\u8bd1\u540e\u7684 JS \u4ee3\u7801\u7684\u5927\u5c0f\uff0c\u5e76\u4e14\u5728\u51c6\u5907\u8fdb\u5165 Production Ready \u9636\u6bb5\u65f6\uff0c\u9884\u8ba1\u4f1a\u6bd4\u73b0\u5728\u66f4\u5c0f\u3002<\/p>\n<hr \/>\n<h2>\u63d0\u793a\uff1a\u521b\u5efaDart\u9879\u76ee\u9700\u8981\u4ece\u96f6\u5f00\u59cb\u3002<\/h2>\n<p>\u5728\u5f00\u59cb\u4e00\u4e2a\u65b0\u7684Dart\u9879\u76ee\u65f6\uff0c\u4f7f\u7528Stagehand\u4f1a\u975e\u5e38\u65b9\u4fbf\u3002\u5b83\u7c7b\u4f3c\u4e8eYeoman\u7684\u9879\u76ee\u751f\u6210\u5668\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u4ece\u96f6\u5f00\u59cb\u624b\u52a8\u521b\u5efa\u4e5f\u5e76\u4e0d\u56f0\u96be\u3002\u4f8b\u5982\uff0c\u6267\u884cmkdir angular2_todo &amp;&amp; cd angular2_todo\u547d\u4ee4\uff0c\u521b\u5efapubspec.yaml\u6587\u4ef6\u5e76\u7f16\u5199\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">todo_app<\/span>\r\n<span class=\"na\">version<\/span><span class=\"pi\">:<\/span> <span class=\"s\">0.1.0<\/span>\r\n<span class=\"na\">dependencies<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">angular2<\/span><span class=\"pi\">:<\/span> <span class=\"s\">2.0.0-beta.0<\/span>\r\n  <span class=\"na\">browser<\/span><span class=\"pi\">:<\/span> <span class=\"s\">^0.10.0<\/span>\r\n  <span class=\"na\">dart_to_js_script_rewriter<\/span><span class=\"pi\">:<\/span> <span class=\"s\">^0.1.0<\/span>\r\n<span class=\"na\">transformers<\/span><span class=\"pi\">:<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">angular2<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">entry_points<\/span><span class=\"pi\">:<\/span> <span class=\"s\">web\/main.dart<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"s\">dart_to_js_script_rewriter<\/span>\r\n<\/code><\/pre>\n<p>\u7136\u540e\u6267\u884cpub get\u3002\u8fd9\u4e2a\u547d\u4ee4\u5c06\u8bbe\u7f6e\u53ef\u4f7f\u7528\u9879\u76ee\u4e2d\u58f0\u660e\u7684\u4f9d\u8d56\u5305\uff0c\u901a\u8fc7pubspec.yaml\u6587\u4ef6\u3002<br \/>\n\u7136\u540e\uff0c\u5728\u9879\u76ee\u76ee\u5f55\u7684\u6839\u76ee\u5f55\u4e0b\u521b\u5efaweb\u548clib\u76ee\u5f55\uff0c\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86\u6700\u57fa\u672c\u7684Dart\u5e94\u7528\u7a0b\u5e8f\u9879\u76ee\u7684\u7ed3\u6784\u3002\u6b64\u5916\uff0c\u51c6\u5907web\/index.html\u6587\u4ef6\uff0c\u5e76\u6267\u884cpub serve\u547d\u4ee4\uff0cdev server\u5c06\u542f\u52a8\u3002\u975e\u5e38\u7b80\u5355\u3002<\/p>\n<hr \/>\n<h1>\u5f15\u5bfc\uff08\u4ece\u8fd9\u91cc\u5f00\u59cb\uff09<\/h1>\n<p>\u73b0\u5728\u8fdb\u5165\u6b63\u9898\u3002\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u4ee3\u7801\u3002<\/p>\n<h2>\u8bf7\u6ce8\u610f<\/h2>\n<p>\u7531\u4e8e Angular2 \u5728 2016 \u5e74 1 \u6708\u65f6\u5904\u4e8e Beta \u7248\u9636\u6bb5\uff0c\u56e0\u6b64\u5176 API \u53ef\u80fd\u4f1a\u51fa\u73b0\u7834\u574f\u6027\u66f4\u6539\u7684\u53ef\u80fd\u6027\u3002<\/p>\n<hr \/>\n<p>lib\/todo_list.dart\u662f\u672c\u6b21\u5e94\u7528\u7a0b\u5e8f\u7684\u6839\u7ec4\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">library<\/span> <span class=\"n\">todo_app<\/span><span class=\"o\">.<\/span><span class=\"na\">todo_list<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"s\">\"package:angular2\/angular2.dart\"<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@Component<\/span><span class=\"o\">(<\/span>\r\n    <span class=\"nl\">selector:<\/span> <span class=\"s\">'todo-list'<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"nl\">templateUrl:<\/span> <span class=\"s\">'.\/todo_list.html'<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"nl\">styleUrls:<\/span> <span class=\"kd\">const<\/span> <span class=\"o\">[<\/span><span class=\"s\">'.\/todo_list.css'<\/span><span class=\"o\">]<\/span>\r\n<span class=\"err\">\uff09<\/span>    \r\n<span class=\"kd\">class<\/span> <span class=\"nc\">TodoList<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>&#8220;package:angular2\/angular2.dart&#8221;\u88ab\u5bfc\u5165\uff0c\u8fd9\u6837\u6240\u6709Angular2\u7684\u529f\u80fd\u90fd\u88ab\u5bfc\u5165\u4e86\u3002<br \/>\n\u5728TodoListclass\u4e0a\u6dfb\u52a0@ComponentAnnotation\u3002Annotation\u662fDart\u7684\u529f\u80fd\uff0c\u5728Angular2\u4e2d\u4f7f\u7528\u5b83\u6765\u58f0\u660eTodoListclass\u662fAngular\u7684Component\uff0c\u5e76\u9644\u52a0\u5143\u6570\u636e\u3002<\/p>\n<p>\u5728TypeScript\u7248\u4e2d\uff0c\u4f7f\u7528\u4e86\u88c5\u9970\u5668\u3002\u81f3\u5c11\u5728Angular2\u4e2d\uff0c\u5c3d\u7ba1{}\u548cconst\u58f0\u660e\u7684\u6709\u65e0\u5b58\u5728\u5dee\u5f02\uff0c\u4f46\u8bed\u6cd5\u5927\u4f53\u4e0a\u662f\u76f8\u540c\u7684\u3002<\/p>\n<p>\u5728\u8fd9\u91cc\uff0cselector:\u4e2d\u4f7f\u7528\u4e86CSS\u9009\u62e9\u5668\u7684\u8bed\u6cd5\uff0c\u7528\u6765\u58f0\u660eComponent\u5bf9\u5e94\u7684Element\u662f\u3002\u540c\u6837\u5730\uff0ctemplateUrl:\u548cstyleUrls:\u88ab\u7528\u6765\u58f0\u660etemplate\u548cstyle\u7684URL\u3002<\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528SASS\u6216LESS\u7b49\u4ee3\u66ffCSS\uff0c\u4f46\u9700\u8981\u7f16\u8f91\u6784\u5efa\u8fc7\u7a0b\u3002\u53ef\u80fd\u9700\u8981\u6dfb\u52a0\u8f6c\u6362\u5668\u9009\u9879\u7b49\u6280\u5de7\u6765\u5b9e\u73b0\u3002\u53e6\u5916\uff0c\u91c7\u7528\u7c7b\u4f3cPolymer\u7684CSS\u53d8\u91cf\u4e5f\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\u3002<\/p>\n<p>\u6211\u4eec\u6765\u770b\u770b`web\/index.html`\u548c`web\/main.dart`\u4e2d\u7f16\u5199\u7684\u54ea\u4e9b\u6837\u677f\u4ee3\u7801\u6765\u52a0\u8f7d\u8fd9\u4e2a\u5305\u542b\u6574\u4e2a\u5e94\u7528\u7a0b\u5e8f\u7684&#8220;\u7ec4\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;head&gt;<\/span>\r\n  ......\r\n  <span class=\"nt\">&lt;script <\/span><span class=\"na\">defer<\/span> <span class=\"na\">src=<\/span><span class=\"s\">\"main.dart\"<\/span> <span class=\"na\">type=<\/span><span class=\"s\">\"application\/dart\"<\/span><span class=\"nt\">&gt;&lt;\/script&gt;<\/span>\r\n  <span class=\"nt\">&lt;script <\/span><span class=\"na\">defer<\/span> <span class=\"na\">src=<\/span><span class=\"s\">\"packages\/browser\/dart.js\"<\/span><span class=\"nt\">&gt;&lt;\/script&gt;<\/span>\r\n<span class=\"nt\">&lt;\/head&gt;<\/span>\r\n<span class=\"nt\">&lt;body&gt;<\/span>\r\n  <span class=\"nt\">&lt;todo-list&gt;<\/span>Loading...<span class=\"nt\">&lt;\/todo-list&gt;<\/span>\r\n<span class=\"nt\">&lt;\/body&gt;<\/span>\r\n<\/code><\/pre>\n<p>\uff08packages\/browser\/dart.js\uff09\u662f\u4e00\u4e2a\u5c0f\u811a\u672c\uff0c\u7528\u4e8e\u5728\u5f00\u53d1\u65f6\u4f7f\u7528Dartium\u4ee5\u5916\u7684\u6d4f\u89c8\u5668\u8fdb\u884c\u9a8c\u8bc1\u65f6\uff0c\u52a8\u6001\u5730\u5c06Dart\u6587\u4ef6\u7684\u8def\u5f84\u66ff\u6362\u4e3a\u7f16\u8bd1\u540e\u7684JS\u6587\u4ef6\u7684\u8def\u5f84\u3002\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u60a8\u65e0\u9700\u62c5\u5fc3\u6b64\u4e8b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">library<\/span> <span class=\"n\">todo_app<\/span><span class=\"o\">.<\/span><span class=\"na\">web<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"s\">'package:angular2\/bootstrap.dart'<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"s\">\"package:todo_app\/todo_list.dart\"<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"n\">main<\/span><span class=\"o\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"n\">bootstrap<\/span><span class=\"o\">(<\/span><span class=\"n\">TodoList<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<p>\u5f15\u7528angular2\/bootstrap.dart\u548ctodo_list.dart\uff0c\u5e76\u5c06TodoList\u7ec4\u4ef6\u4f5c\u4e3a\u6b64Angular2\u5e94\u7528\u7a0b\u5e8f\u7684\u6839\u7ec4\u4ef6\u8fdb\u884c\u6307\u5b9a\u548c\u542f\u52a8\uff0c\u8fd9\u53ea\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff08\u5728\u540e\u7eed\u7684\u8bf4\u660e\u4e2d\uff0c\u6211\u4f1a\u6dfb\u52a0\u4f9d\u8d56\u6ce8\u5165\uff09\u3002<\/p>\n<p>\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u7531\u4e8e&#8217;package:angular2\/bootstrap.dart&#8217;\u5df2\u88ab\u6807\u8bb0\u4e3a@deprecated\uff0c\u6240\u4ee5\u5f88\u53ef\u80fd\u4f1a\u5f88\u5feb\u53d1\u751fAPI\u53d8\u5316\u3002<\/p>\n<p>\u67e5\u770bpackage:angular2\/platform\/browser.dart\u7684\u6ce8\u91ca\u6216angular.io\u7684\u6587\u6863\u7b49\u53ef\u4ee5\u4e86\u89e3\u5230\u8fd9\u4e2aAPI\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u5b83\u8fd8\u89e3\u91ca\u4e86\u4e0eAngular1\u7684\u533a\u522b\uff0cAngular2\u5e94\u7528\u7a0b\u5e8f\u7684\u8bbe\u8ba1\u601d\u60f3\u4ee5\u53ca\u591a\u4e2aAngular2\u5e94\u7528\u7a0b\u5e8f\u7684\u6df7\u5408\u4f7f\u7528\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u4e0eTypeScript\u7248\u4e0d\u540c\uff0cDart\u4e0d\u9700\u8981\u50cfSystemJS\u8fd9\u6837\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u53ea\u9700\u4f7f\u7528Dart\u7684\u5305\u7ba1\u7406\u7cfb\u7edf\u5373\u53ef\u3002<\/p>\n<h1>\u7f51\u7edc\u7ec4\u4ef6<\/h1>\n<p>\u597d\u7684\uff0c\u90a3\u4e48Angular2\u7684\u7ec4\u4ef6\u53ef\u80fd\u662fWeb\u7ec4\u4ef6\u5417\uff1f\u6211\u5c06\u6253\u5f00Dartium\u6216Chrome\u7684\u68c0\u67e5\u5668\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Screen Shot 2016-01-02 at 6.57.51 AM.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/66-0.png\" alt=\"Screen Shot 2016-01-02 at 6.57.51 AM.png\" \/><\/div>\n<p>\u6211\u65e0\u6cd5\u627e\u5230ShadowDOM\u3002\u76f8\u53cd\uff0c\u5143\u7d20\u88ab\u8d4b\u4e88\u4e86\u4e00\u4e2a\u5947\u602a\u7684\u5c5e\u6027-ghost-yfy-1\uff0c\u800c\u5176\u5b50\u5143\u7d20\u88ab\u8d4b\u4e88\u4e86_ngcontent-yfy-1\u7684\u5c5e\u6027\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Screen Shot 2016-01-02 at 7.26.22 AM.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/68-0.png\" alt=\"Screen Shot 2016-01-02 at 7.26.22 AM.png\" \/><\/div>\n<h2>\u4e09\u79cd\u6a21\u5f0f<\/h2>\n<p>\u6211\u4eec\u5df2\u7ecf\u53d1\u73b0Angular2\u5728\u5b9e\u73b0Web\u7ec4\u4ef6\u7684\u4f18\u70b9\u65b9\u9762\u6709\u4e00\u4e9b\u4f2a\u88c5\u3002\u90a3\u4e48\uff0c\u6211\u4eec\u662f\u5426\u53ef\u4ee5\u5c06Angular2\u7ec4\u4ef6\u8f6c\u6362\u4e3a\u771f\u6b63\u7684Web\u7ec4\u4ef6\u5462\uff1f\u8ba9\u6211\u4eec\u7a0d\u5fae\u63a2\u7a76\u4e00\u4e0bAngular2 Dart\u7684\u5b9e\u73b0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"cm\">\/**\r\n * Defines template and style encapsulation options available for Component's [View].\r\n *\r\n * See [ViewMetadata#encapsulation].\r\n *\/<\/span>\r\n<span class=\"kt\">enum<\/span> <span class=\"n\">ViewEncapsulation<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"cm\">\/**\r\n   * Emulate `Native` scoping of styles by adding an attribute containing surrogate id to the Host\r\n   * Element and pre-processing the style rules provided via\r\n   * [ViewMetadata#styles] or [ViewMetadata#stylesUrls], and adding the new Host Element\r\n   * attribute to all selectors.\r\n   *\r\n   * This is the default option.\r\n   *\/<\/span>\r\n  <span class=\"n\">Emulated<\/span><span class=\"o\">,<\/span>\r\n  <span class=\"cm\">\/**\r\n   * Use the native encapsulation mechanism of the renderer.\r\n   *\r\n   * For the DOM this means using [Shadow DOM](https:\/\/w3c.github.io\/webcomponents\/spec\/shadow\/) and\r\n   * creating a ShadowRoot for Component's Host Element.\r\n   *\/<\/span>\r\n  <span class=\"n\">Native<\/span><span class=\"o\">,<\/span>\r\n  <span class=\"cm\">\/**\r\n   * Don't provide any template or style encapsulation.\r\n   *\/<\/span>\r\n  <span class=\"n\">None<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<p>Angular2\u662f\u4f7f\u7528TypeScript\u5f00\u53d1\u7684\uff0c\u7136\u540e\u901a\u8fc7\u8f6c\u8bd1\u4e3aDart\uff0c\u4ee5pub package\u7684\u5f62\u5f0f\u63d0\u4f9b\u3002\u8f6c\u8bd1\u540e\u7684\u4ee3\u7801\u4fdd\u6301\u4e86\u6e90\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u5e76\u4e14\u6ce8\u91ca\u4e5f\u5f97\u5230\u4e86\u9002\u5f53\u7684\u7ef4\u62a4\u3002<\/p>\n<hr \/>\n<p>\u5728Angular2\u7ec4\u4ef6\u7684\u5c01\u88c5\u4e2d\uff0c\u4f7f\u7528enum\u5b9a\u4e49\u4e863\u79cd\u6a21\u5f0f\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Emulated: \u4e0a\u8a18\u8aac\u660e\u306e\u901a\u308a\u3001\u64ec\u4f3c\u7684\u306a\u30ab\u30d7\u30bb\u30eb\u5316\u3092\u884c\u3046\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Native: \u30ec\u30f3\u30c0\u30e9\u30fc\u306e\u63d0\u4f9b\u3059\u308b\u30ab\u30d7\u30bb\u30eb\u5316\u3092\u5229\u7528\u3059\u308b\u3002\uff08DOM\u306e\u5834\u5408\u306fShadow DOM\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">None: template\u3068style\u306e\u30ab\u30d7\u30bb\u30eb\u5316\u3092\u884c\u308f\u306a\u3044\u3002<\/ul>\n<p>\u9ed8\u8ba4\u662f\u6a21\u62df\u6a21\u5f0f\u3002\u56e0\u6b64\uff0c\u5728\u4e4b\u524d\u7684\u4f8b\u5b50\u4e2d\uff0c\u6ca1\u6709\u6307\u5b9a\u4efb\u4f55\u5185\u5bb9\uff0c\u6240\u4ee5\u5e94\u7528\u4e86\u6a21\u62df\u6a21\u5f0f\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4e00\u4e0b\u5c01\u88c5\uff1a\u6307\u5b9aViewEncapsulation.Native\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Component<\/span><span class=\"o\">(<\/span>\r\n    <span class=\"nl\">selector:<\/span> <span class=\"s\">'todo-list'<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"nl\">templateUrl:<\/span> <span class=\"s\">'.\/todo_list.html'<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"nl\">styleUrls:<\/span> <span class=\"kd\">const<\/span> <span class=\"o\">[<\/span><span class=\"s\">'.\/todo_list.css'<\/span><span class=\"o\">],<\/span>\r\n    <span class=\"nl\">encapsulation:<\/span> <span class=\"n\">ViewEncapsulation<\/span><span class=\"o\">.<\/span><span class=\"na\">Native<\/span><span class=\"o\">,<\/span>\r\n<\/code><\/pre>\n<p>\u5728Chrome\u4e2d\u6253\u5f00\uff0c\u90a3\u4e2a\u5947\u602a\u7684\u5c5e\u6027\u6d88\u5931\u4e86\uff0c\u53d6\u800c\u4ee3\u4e4b\u7684\u662fShadowRoot\u3002\u975e\u5e38\u6f02\u4eae\u548c\u597d\u770b\uff01<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Screen Shot 2016-01-02 at 6.37.50 AM.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/81-0.png\" alt=\"Screen Shot 2016-01-02 at 6.37.50 AM.png\" \/><\/div>\n<p>\u7136\u800c\uff0c\u5982\u679c\u4e00\u4e2a\u6d4f\u89c8\u5668\u4e0d\u652f\u6301Web\u7ec4\u4ef6\u6280\u672f\uff0c\u4e5f\u5c31\u662f\u6ca1\u6709\u5b9e\u73b0Shadow DOM\uff0c\u4f1a\u53d1\u751f\u4ec0\u4e48\u5462\uff1f<\/p>\n<p>\u5f53\u6211\u5c1d\u8bd5\u7528Firefox\u6253\u5f00\u65f6\uff0c\u679c\u7136\u51fa\u73b0\u4e86\u5f02\u5e38\u9519\u8bef\uff1aNullError\uff1areceiver.webkitCreateShadowRoot\u672a\u5b9a\u4e49\uff0c\u5bfc\u81f4\u5e94\u7528\u65e0\u6cd5\u6b63\u5e38\u542f\u52a8\u3002\u8fd9\u5f88\u6b63\u5e38\uff0c\u56e0\u4e3a\u6211\u4eec\u5e76\u6ca1\u6709\u5b9e\u65bd\u76f8\u5173\u64cd\u4f5c\u3002\u540c\u65f6\u4e5f\u53ef\u4ee5\u786e\u8ba4\uff0c\u5728Angular2\u5185\u90e8\u5e76\u6ca1\u6709\u4f7f\u7528Web Components\u7684Polyfill\u3002<\/p>\n<h2>\u5e94\u8be5\u9009\u62e9\u54ea\u79cd\u6a21\u5f0f\uff1f<\/h2>\n<p>\u4ece2015\u5e74\u6625\u5929\u5230\u79cb\u5929\uff0cWeb Components\u7684\u8fdb\u5c55\u5927\u81f4\u4e0a\u53ef\u4ee5\u8bf4\u5728\u5404\u4e2a\u6d4f\u89c8\u5668\u4f9b\u5e94\u5546\u4e4b\u95f4\u7684\u4e00\u81f4\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u63a8\u8fdb\uff0c\u5c24\u5176\u662fSafari\u6b63\u5728\u79ef\u6781\u63a8\u8fdbShadowDOM\u7684\u5b9e\u73b0\uff0c\u8fd9\u662f\u4e00\u5219\u4ee4\u4eba\u632f\u594b\u7684\u6d88\u606f\uff0c\u8ba9\u4eba\u5bf9\u6574\u4f53\u53d1\u5c55\u62b1\u6709\u5f88\u5927\u5e0c\u671b\u3002\u7136\u800c\uff0c\u622a\u81f32016\u5e741\u6708\uff0c\u5728Chrome\u7cfb\u5217\u4ee5\u5916\u7684\u6d4f\u89c8\u5668\u4ecd\u7136\u6ca1\u6709\u5f97\u5230\u652f\u6301\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u9664\u975e\u6709\u7279\u6b8a\u539f\u56e0\uff0c\u53ea\u652f\u6301Chrome\u7cfb\u5217\u6d4f\u89c8\u5668\u6216View\u4e0d\u662f\u57fa\u4e8eDOM\uff08\u867d\u7136\u8fd8\u6ca1\u6709\u4ed4\u7ec6\u8c03\u67e5\uff0c\u4f46\u662f\u53ef\u80fd\u662f\u8003\u8651\u4e86NativeScript\uff09\uff0c\u5426\u5219\u5728\u76ee\u524d\u9636\u6bb5\u4e0d\u5e94\u6307\u5b9aViewEncapsulation.Native\u3002\u4e5f\u4e0d\u5e94\u4f7f\u7528ShadowDOM Polyfill\u3002<\/p>\n<p>\u6240\u6709\u73b0\u4ee3\u6d4f\u89c8\u5668\u90fd\u5df2\u7ecf\u5b8c\u5168\u5b9e\u73b0\u4e86Custom Elements\u548cShadowDOM\uff0c\u5e76\u4e14\u5df2\u7ecf\u4fee\u590d\u4e86\u6d4f\u89c8\u5668\u5b9e\u73b0\u7684\u9519\u8bef\uff0c\u60c5\u51b5\u5df2\u7ecf\u7a33\u5b9a\u4e0b\u6765\u3002\u56e0\u6b64\uff0c\u5728\u8fd9\u4e2a\u60c5\u51b5\u4e0b\uff0c\u4ecd\u7136\u91c7\u7528\u9ed8\u8ba4\u7684ViewEncapsulation.Emulated\u662f\u5408\u7406\u7684\u3002<\/p>\n<p>\u800c\u4e14\uff0c\u6211\u81ea\u5df1\u6ca1\u6709\u786e\u8ba4\u8fc7\u8fd9\u4e2a\u64cd\u4f5c\uff0c\u4f46\u662f\u9009\u62e9ViewEncapsulation.None\u53ef\u80fd\u9002\u7528\u4e8e\u5728\u9075\u5b88CSS\u7684BEM\u547d\u540d\u7ea6\u5b9a\u7684\u524d\u63d0\u4e0b\u964d\u4f4eAngular2\u5f15\u5165\u6210\u672c\u7684\u76ee\u7684\uff0c\u8fd9\u53d6\u51b3\u4e8e\u7ec4\u7ec7\u548c\u9879\u76ee\u7684\u60c5\u51b5\u3002<\/p>\n<h1>\u7b80\u5355\u7684\u6570\u636e\u7ed1\u5b9a<\/h1>\n<p>\u5728Angular2\u4e2d\uff0c\u6570\u636e\u7ed1\u5b9a\u53d8\u5f97\u66f4\u7b80\u5355\u4e86\uff0c\u7406\u89e3\u5176\u5de5\u4f5c\u539f\u7406\u4e5f\u66f4\u52a0\u5bb9\u6613\u4e86\u3002<\/p>\n<h2>\u5c5e\u6027\u7ed1\u5b9a (Sh\u01d4 X\u00ec<\/h2>\n<p>\u9996\u5148\uff0c\u53ea\u9700\u5728Dart\u7684\u7c7b\u4e2d\u6dfb\u52a0\u5c5e\u6027\u3002\u8fd9\u662fDart\u5c5e\u6027\u7684\u8bed\u6cd5\u672c\u8eab\u3002\u4e0eAngular 1\u4e0d\u540c\uff0c\u5b83\u6ca1\u6709\u8303\u56f4\u7684\u6982\u5ff5\u3002\u53d6\u800c\u4ee3\u4e4b\u7684\u662f\uff0c\u7ec4\u4ef6\u5c06\u6210\u4e3a\u5bf9\u5e94\u89c6\u56fe\u7684\u4e0a\u4e0b\u6587\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">TodoList<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kt\">String<\/span> <span class=\"n\">newItem<\/span> <span class=\"o\">=<\/span> <span class=\"s\">'test'<\/span><span class=\"o\">;<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u5c06\u8be5property\u7ed1\u5b9a\u5230DOM\u5143\u7d20\u7684property\u4e0a\uff0c\u53ef\u4ee5\u4f7f\u7528[value]=&#8221;newItem&#8221;\u5c06\u5176\u8bbe\u5b9a\u4e3a\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;input<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"new-todo\"<\/span> <span class=\"na\">[value]=<\/span><span class=\"s\">\"newItem\"<\/span><span class=\"nt\">&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5b9e\u9645\u7684\u4ee3\u7801\u4f7f\u7528[(ngModel)]=&#8221;newItem&#8221;\u5b9e\u73b0\u53cc\u5411\u7ed1\u5b9a\uff0c\u4f46\u4e3a\u4e86\u8bf4\u660e\uff0c\u6211\u8fd9\u91cc\u63d0\u4f9b\u4e86\u4e34\u65f6\u7684\u4ee3\u7801\u3002<\/p>\n<p>\u53ea\u9700\u8fd9\u6837\uff0c\u5c31\u53ef\u4ee5\u5c06\u8f93\u5165\u5143\u7d20\u7684value\u5c5e\u6027\u8fdb\u884c\u6570\u636e\u7ed1\u5b9a\u4e86\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Screen Shot 2016-01-02 at 12.15.20 AM.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/98-0.png\" alt=\"Screen Shot 2016-01-02 at 12.15.20 AM.png\" \/><\/div>\n<p>\u5728\u5c5e\u6027\u7ed1\u5b9a\u4e2d\uff0c\u6570\u636e\u59cb\u7ec8\u4ee5\u4e00\u79cd\u5355\u5411\u6d41\u52a8\u7684\u65b9\u5f0f\u4ece\u7ec4\u4ef6\u4f20\u9012\u5230\u76f8\u5e94\u7684\u89c6\u56fe\u3002<\/p>\n<h1>\u4e8b\u4ef6\u7ed1\u5b9a<\/h1>\n<p>\u4e8b\u4ef6\u7ed1\u5b9a\u4e5f\u662f\u7b80\u5355\u7684\u3002\u6211\u4eec\u4f1a\u4f7f\u7528Dart\u7684\u5e38\u89c4\u8bed\u6cd5\u6765\u7f16\u5199TodoList\u7c7b\u7684\u65b9\u6cd5(addItem())\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">TodoList<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kt\">String<\/span> <span class=\"n\">newItem<\/span> <span class=\"o\">=<\/span> <span class=\"s\">'test'<\/span><span class=\"o\">;<\/span>\r\n\r\n  <span class=\"n\">addItem<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">store<\/span><span class=\"o\">.<\/span><span class=\"na\">addItem<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">newItem<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">newItem<\/span> <span class=\"o\">=<\/span> <span class=\"s\">''<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u53ea\u8981\u5199\u6210\u4ee5\u4e0b\u7684\u6837\u5b50 (click)=&#8221;addItem()&#8221;\uff0c\u5c31\u53ef\u4ee5\u5c06addItem()\u7ed1\u5b9a\u5230click\u4e8b\u4ef6\u4e0a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;button<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"add\"<\/span> <span class=\"na\">(click)=<\/span><span class=\"s\">\"addItem()\"<\/span><span class=\"nt\">&gt;<\/span>Add<span class=\"nt\">&lt;\/button&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u4e8b\u4ef6\u7ed1\u5b9a\u4e2d\uff0c\u6570\u636e\u59cb\u7ec8\u4ee5\u5355\u5411\u6d41\u52a8\u7684\u65b9\u5f0f\u4ece\u89c6\u56fe\u4f20\u9012\u5230\u5bf9\u5e94\u7684\u7ec4\u4ef6\u3002<\/p>\n<h1>\u53cc\u5411\u7ed1\u5b9a<\/h1>\n<p>\u5c5e\u6027\u7ed1\u5b9a\u901a\u8fc7[]\u8bed\u6cd5\u59cb\u7ec8\u4ece\u7ec4\u4ef6\u6d41\u5411\u89c6\u56fe\uff0c\u4e8b\u4ef6\u7ed1\u5b9a\u901a\u8fc7()\u8bed\u6cd5\u59cb\u7ec8\u4ece\u89c6\u56fe\u6d41\u5411\u7ec4\u4ef6\u3002<\/p>\n<p>\u8981\u5b9e\u73b0\u5c06\u7528\u6237\u7684\u8f93\u5165\u66f4\u65b0\u53cd\u6620\u5230newItem\u5c5e\u6027\u4e0a\uff0c\u6700\u597d\u7684\u65b9\u6cd5\u662f\u4f7f\u7528(input)=&#8221;newItemChanged($event)&#8221;\u8fdb\u884c\u4e8b\u4ef6\u7ed1\u5b9a\u3002($event\u662fDOM\u4e8b\u4ef6\u3002\u4e8b\u4ef6\u7ed1\u5b9a\u7684\u8868\u8fbe\u5f0f\u53ef\u4ee5\u63a5\u53d7$event\u4f5c\u4e3a\u53c2\u6570\u3002)<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;input<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"new-todo\"<\/span>\r\n      <span class=\"na\">[value]=<\/span><span class=\"s\">\"newItem\"<\/span> <span class=\"na\">(input)=<\/span><span class=\"s\">\"newItemChanged($event)\"<\/span><span class=\"nt\">&gt;<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"n\">newItemChanged<\/span><span class=\"o\">(<\/span><span class=\"n\">KeyboardEvent<\/span> <span class=\"n\">event<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">InputElement<\/span> <span class=\"n\">target<\/span> <span class=\"o\">=<\/span> <span class=\"n\">event<\/span><span class=\"o\">.<\/span><span class=\"na\">target<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">newItem<\/span> <span class=\"o\">=<\/span> <span class=\"n\">target<\/span><span class=\"o\">.<\/span><span class=\"na\">value<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u6210\u529f\u5b9e\u73b0\u4e86\u53cc\u5411\u7ed1\u5b9a\u3002<\/p>\n<h1>\u672c\u5730\u6a21\u677f\u53d8\u91cf<\/h1>\n<p>\u5728\u5148\u524d\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u89e3\u91ca\u4e86expression\u53ef\u4ee5\u63a5\u53d7DOM\u7684Event\u4f5c\u4e3a\u53c2\u6570\u7684\u80fd\u529b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;input<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"new-todo\"<\/span>\r\n      <span class=\"na\">[value]=<\/span><span class=\"s\">\"newItem\"<\/span> <span class=\"na\">(input)=<\/span><span class=\"s\">\"newItemChanged($event)\"<\/span><span class=\"nt\">&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u7531\u4e8eEvent\u662fDOM API\uff0c\u56e0\u6b64\u5b83\u5177\u6709\u901a\u7528\u6027\uff0c\u4f46\u5904\u7406\u548c\u7c7b\u578b\u68c0\u67e5\u7a0d\u5fae\u9ebb\u70e6\u4e5f\u662f\u4e8b\u5b9e\u3002\u6709\u6ca1\u6709\u66f4\u7b80\u5355\u7684\u65b9\u6cd5\u5462\uff1f\u4f7f\u7528\u672c\u5730\u6a21\u677f\u53d8\u91cf\u53ef\u4ee5\u7b80\u5316\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;input<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"new-todo\"<\/span>\r\n      <span class=\"na\">#todoInput<\/span> <span class=\"na\">[value]=<\/span><span class=\"s\">\"newItem\"<\/span> <span class=\"na\">(input)=<\/span><span class=\"s\">\"newItemChanged(todoInput.value)\"<\/span><span class=\"nt\">&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u4f7f\u7528#todoInput\uff0c\u53ef\u4ee5\u58f0\u660e\u4e00\u4e2a\u540d\u4e3atodoInput\u7684\u53d8\u91cf\u3002\u5728\u8fd9\u91cc\uff0c\u53ef\u4ee5\u901a\u8fc7todoInput.value\u6765\u5f15\u7528Input\u7684value\u5c5e\u6027\u3002<\/p>\n<p>\u4ee5\u4e0b\u662fTodoList\u7c7b\u7684\u65b9\u6cd5\uff0c\u5b83\u4e0eExpression\u76f8\u5bf9\u5e94\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">newItemChanged<\/span><span class=\"o\">(<\/span><span class=\"kt\">String<\/span> <span class=\"n\">value<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">newItem<\/span> <span class=\"o\">=<\/span> <span class=\"n\">value<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u53bb\u9664\u5904\u7406\u952e\u76d8\u4e8b\u4ef6\u5e76\u63d0\u53d6\u4e8b\u4ef6\u76ee\u6807\u503c\u7684\u4ee3\u7801\uff0c\u4f7f\u4ee3\u7801\u53d8\u5f97\u7b80\u6d01\u800c\u6e05\u6670\u3002<\/p>\n<h1>NgModel (\u53cc\u5411\u7ed1\u5b9a\u6a21\u5757)<\/h1>\n<p>\u6b64\u5916\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7[(ngModel)]\u6765\u7b80\u5316\u8fd9\u4e2a\u8fc7\u7a0b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;input<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"new-todo\"<\/span> <span class=\"na\">[(ngModel)]=<\/span><span class=\"s\">\"newItem\"<\/span><span class=\"nt\">&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u53ea\u9700\u8981\u4ee5\u4e0b\u8fd9\u4e2a\uff1a<br \/>\n\u8fd9\u6837\u5c31\u53ef\u4ee5\u4e86\u3002Dart\u7684\u65b9\u6cd5\u4e5f\u4e0d\u518d\u9700\u8981\u4e86\u3002[(ngModel)]\u662f\u5c5e\u6027\u7ed1\u5b9a\u548c\u4e8b\u4ef6\u7ed1\u5b9a\u7684\u7ec4\u5408\u8bed\u6cd5\u7cd6\uff0c\u5728\u5904\u7406\u8f93\u5165\u65f6\u7279\u522b\u65b9\u4fbf\u3002\u5982\u679c\u60f3\u8981\u4e86\u89e3[(ngModel)]\u7684\u5185\u90e8\u7ed3\u6784\uff0c\u8bf7\u9605\u8bfbANGULAR 2 TEMPLATE SYNTAX\u6216\u67e5\u770b\u6e90\u4ee3\u7801\u7b49\u3002<\/p>\n<h1>\u865a\u62df\u4e8b\u4ef6<\/h1>\n<p>\u4f5c\u4e3a\u6dfb\u52a0\u5f85\u529e\u4e8b\u9879\u7684\u64cd\u4f5c\uff0c\u9664\u4e86\u70b9\u51fb\u201cAdd\u201d\u6309\u94ae\u5916\uff0c\u5e94\u8be5\u4e5f\u652f\u6301\u6309\u4e0b\u201cEnter\u201d\u952e\u3002\u5728Dart\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7\u8fc7\u6ee4keyup\u4e8b\u4ef6\u7684\u6309\u952e\u4ee3\u7801\u6765\u5199\u5c31\u975e\u5e38\u7b80\u5355\uff0c\u591a\u4e8f\u4e86Dart\u7684Event Stream\u3002\u7136\u800c\uff0cAngular2\u8fd8\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u66f4\u4e3a\u65b9\u4fbf\u7684\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;input<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"new-todo\"<\/span> <span class=\"na\">[(ngModel)]=<\/span><span class=\"s\">\"newItem\"<\/span> <span class=\"na\">(keyup.enter)=<\/span><span class=\"s\">\"addItem()\"<\/span><span class=\"nt\">&gt;<\/span>\r\n<span class=\"nt\">&lt;button<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"add\"<\/span> <span class=\"na\">(click)=<\/span><span class=\"s\">\"addItem()\"<\/span><span class=\"nt\">&gt;<\/span>Add<span class=\"nt\">&lt;\/button&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u53ea\u9700\u952e\u5165 (keyup.enter)\uff0c\u5b83\u5c31\u4f1a\u8fc7\u6ee4\u6389\u952e\u7801\u3002\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<h1>\u4e3a\u4ec0\u4e48\u5c06Data Binding\u7684\u8bed\u6cd5\u4eceAngular1\u8fdb\u884c\u4e86\u6539\u53d8\uff1f<\/h1>\n<p>\u8bf7\u89c2\u770bng-conf 2015\u7684\u4e3b\u9898\u6f14\u8bb2\uff0c\u56e0\u4e3a\u51b3\u7b56\u80cc\u540e\u7684\u80cc\u666f\u975e\u5e38\u6709\u8da3\u3002\uff08\u8fd9\u662f\u8fd1\u4e00\u5e74\u524d\u7684\u4fe1\u606f\uff0c\u6211\u5f88\u540e\u6094\u6700\u8fd1\u624d\u610f\u8bc6\u5230\u8fd9\u4e00\u70b9\u3002\uff09<\/p>\n<p>\u8981\u63d0\u53d6\u7684\u8981\u70b9\u4e4b\u4e00\u662f<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Html Attribute\u306fDOM Property\u306e\u5024\u304cserialize\u3055\u308c\u305f\u3082\u306e\u3067\u3001\u305d\u306e\u5f8c\u306bProperty\u306e\u5024\u304c\u66f4\u65b0\u3055\u308c\u3066\u3082Attribute\u306e\u5024\u306f\u66f4\u65b0\u3055\u308c\u306a\u3044\u30b1\u30fc\u30b9\u3082\u3042\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Attribute\u3068\u7570\u306a\u308aProperty\u306fserialize\u3057\u306a\u304f\u3066\u3082\u826f\u3044\u3002\u3088\u3063\u3066model\u306e\u5024\u3092\u578b\u3092\u4fdd\u6301\u3057\u305f\u307e\u307e\u5b50component\u306b\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3002{{}}expression\u306eserialize\u304c\u4e0d\u8981\u306b\u306a\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">ng-*\u306e\u591a\u6570\u306edirective\u304c\u5fc5\u8981\u306a\u304f\u306a\u308a\u3001DOM property\u306bbind\u3059\u308b\u3060\u3051\u3067\u826f\u304f\u306a\u308b\u3002<\/ul>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Screen Shot 2016-01-02 at 9.16.49 AM.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/133-0.png\" alt=\"Screen Shot 2016-01-02 at 9.16.49 AM.png\" \/><\/div>\n<p>\u8fd9\u662f\u4e2a\u65c1\u767d\uff0c\u4f46\u7531\u4e8e\u8bbe\u8ba1\u601d\u60f3\u7684\u5dee\u5f02\uff0c\u7b80\u5355\u5730\u6bd4\u8f83\u5e76\u6ca1\u6709\u592a\u591a\u610f\u4e49\u3002\u7136\u800c\uff0c\u76f8\u6bd4Polymer1\uff0c\u6211\u89c9\u5f97Angular2\u7684\u7ec4\u4ef6\u66f4\u6613\u4e8e\u7f16\u5199\u3002<\/p>\n<h1>\u6dfb\u52a0\u5546\u5e97<\/h1>\n<p>\u6211\u4eec\u5c06\u4ece\u8fd9\u91cc\u5f00\u59cb\u6dfb\u52a0Model\u5c42\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u501f\u7528Flux\u6a21\u5f0f\u7684\u6982\u5ff5\uff0c\u6dfb\u52a0\u4e00\u4e2aStore\u3002Store\u8d1f\u8d23\u5904\u7406\u4e1a\u52a1\u903b\u8f91\u5e76\u5b58\u50a8\u6570\u636e\u3002\uff08\u4e3a\u4e86\u5c0a\u91cd\u539f\u59cb\u6587\u7ae0\u7684\u601d\u60f3\u548c\u4ee3\u7801\uff0c\u6211\u4eec\u9009\u62e9\u79f0\u4e4b\u4e3aStore\u3002\uff09<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">TodoItem<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kt\">String<\/span> <span class=\"n\">text<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">TodoItem<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">text<\/span><span class=\"o\">);<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">TodoStore<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">TodoItem<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">items<\/span><span class=\"o\">;<\/span>\r\n\r\n  <span class=\"n\">TodoStore<\/span><span class=\"o\">()<\/span> <span class=\"o\">:<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">items<\/span> <span class=\"o\">=<\/span> <span class=\"o\">[];<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u5148\u76f4\u63a5\u5728TodoList\u7ec4\u4ef6\u4e2d\u5b9e\u4f8b\u5316\u5b83\u3002\u4e4b\u540e\u518d\u6539\u8fdb\u4e3a\u4f9d\u8d56\u6ce8\u5165\u7684\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"s\">'.\/todo_store.dart'<\/span> <span class=\"k\">as<\/span> <span class=\"n\">model<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kd\">final<\/span> <span class=\"n\">store<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"na\">TodoStore<\/span><span class=\"o\">();<\/span>\r\n\r\n<span class=\"nd\">@Component<\/span><span class=\"o\">({<\/span> <span class=\"o\">...<\/span> <span class=\"o\">})<\/span>\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">TodoList<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kt\">String<\/span> <span class=\"n\">newItem<\/span> <span class=\"o\">=<\/span> <span class=\"s\">'test'<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"na\">TodoStore<\/span> <span class=\"n\">store<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"c1\">\/\/ \u7565<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u5728\u8fd9\u4e2a\u7b80\u5355\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5b9a\u4e49\u4e00\u4e2a\u52a8\u4f5c\u5e76\u6dfb\u52a0\u4e00\u4e2a\u8c03\u5ea6\u7a0b\u5e8f\uff0c\u5e76\u901a\u8fc7\u5b83\u6765\u9a71\u52a8\u5b58\u50a8\u5668\u7684\u65b9\u5f0f\u8fc7\u4e8e\u5938\u5f20\uff0c\u5e76\u4e0d\u9002\u5408\u4f5c\u4e3a\u793a\u4f8b\u3002\u56e0\u6b64\uff0c\u5728\u8fd9\u91cc\u6211\u4eec\u505a\u4e86\u7b80\u5316\uff0c\u53ea\u662f\u5c06\u5b58\u50a8\u5668\u7684\u5b9e\u73b0\u9650\u5236\u5728\u76f4\u63a5\u4eceTodoList\u7ec4\u4ef6\u63a5\u6536\u6d88\u606f\u4e0a\u3002<\/p>\n<p>\u8fd9\u4e2a TodoStore \u4fdd\u6301\u4e86\u4e00\u4e2a TodoItem \u7684 List\uff0c\u7528 ngFor \u6e32\u67d3\u5b83\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;section<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"main\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;ul<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"todo-list\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    <span class=\"nt\">&lt;li<\/span> <span class=\"na\">*ngFor=<\/span><span class=\"s\">\"#item of items\"<\/span><span class=\"nt\">&gt;<\/span>\r\n      <span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"view\"<\/span><span class=\"nt\">&gt;<\/span>\r\n        <span class=\"nt\">&lt;label&gt;&lt;\/label&gt;<\/span>\r\n      <span class=\"nt\">&lt;\/div&gt;<\/span>\r\n    <span class=\"nt\">&lt;\/li&gt;<\/span>\r\n  <span class=\"nt\">&lt;\/ul&gt;<\/span>\r\n<span class=\"nt\">&lt;\/section&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5e0c\u671bDart\u7248\u672c\u80fd\u591f\u7f16\u5199\u6210#item in items\uff0c\u800c\u4e0d\u662f\u4f7f\u7528of\u3002<\/p>\n<h1>\u4f9d\u8d56\u6ce8\u5165 (DI)<\/h1>\n<p>\u5728Angular2\u4e2d\uff0c\u6211\u4eec\u4ecd\u7136\u9700\u8981\u4f7f\u7528\u4f9d\u8d56\u6ce8\u5165\uff08DI\uff09\u6765\u5b9e\u73b0TodoStore\u7684\u5355\u4f8b\u6a21\u5f0f\uff0c\u5c31\u50cf\u5728Angular1\u4e2d\u521b\u5efaService\u5e76\u6ce8\u5165\u5230Controller\u4e2d\u4e00\u6837\u3002<\/p>\n<p>\u5728TodoList\u7c7b\u4e2d\uff0c\u6211\u4eec\u6dfb\u52a0\u4e86model.TodoStore\u7c7b\u7684store\u5c5e\u6027\uff0c\u5e76\u5728\u6784\u9020\u51fd\u6570\u4e2d\u8fdb\u884c\u4e86\u76f8\u5e94\u7684\u6307\u5b9a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"s\">'.\/todo_store.dart'<\/span> <span class=\"k\">as<\/span> <span class=\"n\">model<\/span><span class=\"o\">;<\/span>\r\n<span class=\"nd\">@Component<\/span><span class=\"o\">(<\/span>\r\n  <span class=\"c1\">\/\/ \u7565<\/span>\r\n<span class=\"o\">)<\/span>\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">TodoList<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kt\">String<\/span> <span class=\"n\">newItem<\/span> <span class=\"o\">=<\/span> <span class=\"s\">'test'<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"na\">TodoStore<\/span> <span class=\"n\">store<\/span><span class=\"o\">;<\/span>\r\n\r\n  <span class=\"n\">TodoList<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">store<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"c1\">\/\/ \u7565<\/span>\r\n<span class=\"o\">}<\/span>   \r\n<\/code><\/pre>\n<p>\u53e6\u5916\uff0cTodoList(this.store)\u5c06\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">TodoList<\/span><span class=\"o\">(<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"na\">TodoStore<\/span> <span class=\"n\">store<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">store<\/span> <span class=\"o\">=<\/span> <span class=\"n\">store<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u7528\u4e2d\u6587\u8fdb\u884c\u8f6c\u8ff0\u3002<\/p>\n<p>\u53ea\u9700\u5c06TodoStore\u6dfb\u52a0\u5230bootstrap()\u51fd\u6570\u4e2d\u5373\u53ef\u5b8c\u6210\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">library<\/span> <span class=\"n\">todo_app<\/span><span class=\"o\">.<\/span><span class=\"na\">web<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"s\">'package:angular2\/bootstrap.dart'<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"s\">\"package:todo_app\/todo_list.dart\"<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"s\">'package:todo_app\/todo_store.dart'<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"n\">main<\/span><span class=\"o\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"n\">bootstrap<\/span><span class=\"o\">(<\/span><span class=\"n\">TodoList<\/span><span class=\"o\">,<\/span> <span class=\"o\">[<\/span><span class=\"n\">TodoStore<\/span><span class=\"o\">]);<\/span>\r\n<\/code><\/pre>\n<p>\u8bf7\u67e5\u770b\u6709\u5173\u4f9d\u8d56\u6ce8\u5165\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<h1>\u6dfb\u52a0TodoItem\u7684\u529f\u80fd<\/h1>\n<p>\u7531\u4e8e\u6dfb\u52a0\u4e86 Store\uff0c\u6211\u4eec\u5c06\u6dfb\u52a0 Todo \u9879\u7684\u529f\u80fd\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Component<\/span><span class=\"o\">(<\/span>\r\n  <span class=\"c1\">\/\/ \u7565<\/span>\r\n<span class=\"o\">)<\/span>\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">TodoList<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kt\">String<\/span> <span class=\"n\">newItem<\/span> <span class=\"o\">=<\/span> <span class=\"s\">'test'<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"na\">TodoStore<\/span> <span class=\"n\">store<\/span><span class=\"o\">;<\/span>\r\n\r\n  <span class=\"n\">TodoList<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">store<\/span><span class=\"o\">);<\/span>\r\n\r\n  <span class=\"n\">addItem<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">store<\/span><span class=\"o\">.<\/span><span class=\"na\">addItem<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">newItem<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">newItem<\/span> <span class=\"o\">=<\/span> <span class=\"s\">''<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"c1\">\/\/ \u7565<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">TodoStore<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"c1\">\/\/ \u7565<\/span>\r\n  <span class=\"n\">addItem<\/span><span class=\"o\">(<\/span><span class=\"kt\">String<\/span> <span class=\"n\">newItem<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">items<\/span><span class=\"o\">.<\/span><span class=\"na\">add<\/span><span class=\"o\">(<\/span><span class=\"k\">new<\/span> <span class=\"n\">TodoItem<\/span><span class=\"o\">(<\/span><span class=\"n\">newItem<\/span><span class=\"o\">));<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"err\">\u3000<\/span><span class=\"c1\">\/\/ \u7565<\/span>\r\n<span class=\"o\">}<\/span><span class=\"err\">\u3000<\/span>\r\n<\/code><\/pre>\n<p>\u53ea\u9700\u8fd9\u6837\uff0c\u901a\u8fc7\u5bf9Store\u6dfb\u52a0\u9879\u76ee\u4ee5\u66f4\u65b0store\u5c5e\u6027\uff0c\u5e76\u66f4\u65b0newItem\u5c5e\u6027\uff0c\u8fd9\u5c06\u53cd\u6620\u5728\u89c6\u56fe\u4e2d\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Screen Shot 2016-01-03 at 9.40.28 AM.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/159-0.png\" alt=\"Screen Shot 2016-01-03 at 9.40.28 AM.png\" \/><\/div>\n<h2>Angular2\u662f\u5982\u4f55\u5728\u4f55\u65f6\u4ee5\u53ca\u5982\u4f55\u5c06\u6570\u636e\u66f4\u65b0\u53cd\u6620\u5230\u89c6\u56fe\u4e2d\u7684\uff1f<\/h2>\n<p>Angular 2\u662f\u5982\u4f55\u5728\u4f55\u65f6\u5c06\u6570\u636e\u66f4\u65b0\u53cd\u6620\u5230\u89c6\u56fe\u4e2d\u7684\uff1f<\/p>\n<p>\u5728Angular1\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528Scope\u548cDigest Cycle\u7684\u6982\u5ff5\u6765\u7ba1\u7406\u6570\u636e\u66f4\u65b0\u3002\u8fd9\u5bf9\u4e8e\u7b80\u5355\u7684\u5e94\u7528\u7a0b\u5e8f\u975e\u5e38\u65b9\u4fbf\uff0c\u4f46\u662f\u5f53\u5e94\u7528\u7a0b\u5e8f\u53d8\u5f97\u590d\u6742\u4e14\u9700\u8981\u7ba1\u7406\u7684\u6570\u636e\u589e\u52a0\u65f6\uff0c\u4f1a\u5bfc\u81f4\u4e0d\u5fc5\u8981\u7684\u66f4\u65b0\u68c0\u67e5\u589e\u52a0\uff0c\u6027\u80fd\u4e0b\u964d\uff0c\u4ee5\u53ca\u590d\u6742\u7684Digest Cycle\u63a7\u5236\u80cc\u666f\u4e0b\u5f00\u53d1\u4eba\u5458\u53ef\u80fd\u9700\u8981\u6839\u636e\u542f\u53d1\u5f0f\u51c6\u5219\u7f16\u5199\u4ee3\u7801\u6765\u8c03\u7528Digest Cycle\u3002\u5c24\u5176\u662f\u5728\u6027\u80fd\u8f83\u4f4e\u7684\u79fb\u52a8\u8bbe\u5907\u4e0a\uff0c\u8fd9\u53ef\u80fd\u6210\u4e3a\u4e00\u4e2a\u95ee\u9898\u3002<\/p>\n<p>Angular2\u5f15\u5165\u4e86\u4e00\u79cd\u540d\u4e3aChange Detection\u7684\u673a\u5236\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u901a\u8fc7\u8fd9\u4e2a\u673a\u5236\uff0c\u5b9e\u73b0\u4e86\u7c7b\u4f3c\u4e8e\u201cDigest Cycle\u201d\u7684\u9690\u85cf\u548c\u663e\u8457\u7684\u6027\u80fd\u63d0\u5347\u3002<\/p>\n<p>\u8fd9\u4e2aChange Detection\u662f\u4f7f\u7528&#8221;Zone&#8221;(JS, Dart)\u6765\u5bf9\u6d4f\u89c8\u5668\u7684\u5f02\u6b65API\u8fdb\u884c\u8865\u4e01\uff0c\u5b9e\u73b0\u81ea\u52a8\u5728\u5404\u4e2a\u4e8b\u4ef6\u5468\u56f4\uff08\u5982DOM\u4e8b\u4ef6\u548cHttp\u8bf7\u6c42\uff09\u8fdb\u884c\u9002\u5f53\u6267\u884c\u7684\u8bbe\u8ba1\u3002\u4e0eAngular1\u4e0d\u540c\u7684\u662f\uff0c\u5b83\u7ecf\u5e38\u4ece\u6839\u7ec4\u4ef6\u5f00\u59cb\uff0c\u901a\u8fc7\u6df1\u5ea6\u4f18\u5148\u641c\u7d22\u6765\u904d\u5386\u7ec4\u4ef6\u6811\uff0c\u5e76\u68c0\u67e5\u4e0e\u5c5e\u6027\u7ed1\u5b9a\u7684\u503c\uff0c\u7136\u540e\u66f4\u65b0\u89c6\u56fe\u3002(\u6ce8\u610f: \u9700\u8981\u8fdb\u4e00\u6b65\u786e\u8ba4\u7ec6\u8282)\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u8fd8\u6709\u4e00\u4e2a\u540d\u4e3a\u5f00\u53d1\u8005\u6a21\u5f0f\u7684\u529f\u80fd\u3002\u5f53\u7a0b\u5e8f\u5458\u7f16\u5199\u4f1a\u7834\u574f\u53d8\u66f4\u68c0\u6d4b\u66f4\u65b0\u7ba1\u7406\u7684\u4ee3\u7801\u65f6\uff0c\u5b83\u4f1a\u5728\u8fd0\u884c\u65f6\u629b\u51fa\u9519\u8bef\u5e76\u63d0\u793a\u7a0b\u5e8f\u5458\u8fdb\u884c\u4fee\u6b63\u3002\u9700\u8981\u786e\u4fdd\u8fd9\u65b9\u9762\u7684\u529f\u80fd\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<p>\u8bf7\u53c2\u9605Angular2\u7684Change Detection\u4ee5\u53caCHANGE DETECTION IN ANGULAR 2\u4ee5\u83b7\u53d6\u66f4\u591a\u5173\u4e8eChange Detection\u7684\u89e3\u91ca\u3002<\/p>\n<h1>\u6dfb\u52a0\u5b50\u7ec4\u4ef6<\/h1>\n<p>\u5b9e\u9645\u7684Angular2\u5e94\u7528\u7a0b\u5e8f\u5e94\u8be5\u7531\u8bb8\u591a\u7ec4\u4ef6\u6784\u6210\u4e00\u68f5\u6811\u7ed3\u6784\u3002 \u5728\u8fd9\u4e2aTodoList\u793a\u4f8b\u4e2d\uff0c\u4e3a\u4e86\u8bf4\u660e\u5b50\u7ec4\u4ef6\u7684\u4f8b\u5b50\uff0c\u6211\u4eec\u5c06\u5c1d\u8bd5\u6539\u53d8\u5f53\u524d\u53ea\u6709\u4e00\u4e2a\u6839\u7ec4\u4ef6TodoList\u7684\u7ed3\u6784\u3002<\/p>\n<p>\u8bf7\u5c06todo_list.html\u7684\u5176\u4e2d\u4e00\u90e8\u5206\u8fdb\u884c\u91cd\u65b0\u53d9\u8ff0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"view\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;label&gt;&lt;\/label&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5c06\u5176\u89c6\u4e3aView\u6a21\u677f\uff0c\u5e76\u521b\u5efaTodoItem\u7ec4\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"s\">\"package:angular2\/angular2.dart\"<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"s\">\".\/todo_store.dart\"<\/span> <span class=\"k\">as<\/span> <span class=\"n\">model<\/span> <span class=\"kd\">show<\/span> <span class=\"n\">TodoItem<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@Component<\/span><span class=\"o\">(<\/span>\r\n    <span class=\"nl\">selector:<\/span> <span class=\"s\">'todo-item'<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"nl\">templateUrl:<\/span> <span class=\"s\">'.\/todo_item.html'<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"nl\">styleUrls:<\/span> <span class=\"kd\">const<\/span> <span class=\"o\">[<\/span><span class=\"s\">'.\/todo_item.css'<\/span><span class=\"o\">]<\/span>\r\n<span class=\"o\">)<\/span>    \r\n<span class=\"kd\">class<\/span> <span class=\"nc\">TodoItem<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"nd\">@Input<\/span><span class=\"o\">()<\/span>\r\n  <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"na\">TodoItem<\/span> <span class=\"n\">item<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f@Input()\u6ce8\u89e3\u3002\u6dfb\u52a0\u4e86\u8fd9\u4e2a\u6ce8\u89e3\u7684property\u5c06\u6210\u4e3a\u8be5\u7ec4\u4ef6\u7684\u516c\u5171API\uff0c\u4f7f\u5176\u53ef\u4ee5\u8fdb\u884c\u7ed1\u5b9a\u3002\u4ee5\u4e0b\u662f\u5c06\u5176\u66ff\u6362\u4e3a\u7684\u5b9e\u9645\u4f8b\u5b50\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;li<\/span> <span class=\"na\">*ngFor=<\/span><span class=\"s\">\"#item of store.items\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;todo-item<\/span> <span class=\"na\">[item]=<\/span><span class=\"s\">\"item\"<\/span><span class=\"nt\">&gt;&lt;\/todo-item&gt;<\/span>\r\n<span class=\"nt\">&lt;\/li&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5728&#8221;item&#8221;\u4e2d\uff0c\u7531\u4e8e@Input()\u6ce8\u89e3\u58f0\u660e\u4e86TodoItem\u7ec4\u4ef6\u7684\u516c\u5171\u5c5e\u6027\uff0c\u8be5\u5c5e\u6027\u4e0eStore\u7684TodoItem\u5b9e\u4f8b\u7ed1\u5b9a\u5728\u4e00\u8d77\u3002<\/p>\n<h1>\u6dfb\u52a0\u5220\u9664\u6309\u94ae<\/h1>\n<p>\u6211\u5df2\u7ecf\u786e\u8ba4\u4e86\u7ed1\u5b9a\u5230\u5b50\u7ec4\u4ef6\u5c5e\u6027\u7684\u4f8b\u5b50\u3002\u4e0b\u9762\u6211\u4eec\u901a\u8fc7\u6dfb\u52a0\u5220\u9664\u6309\u94ae\uff0c\u5e76\u5c06\u7ec4\u4ef6\u89c6\u4e3aDOM\u5143\u7d20\uff0c\u6765\u770b\u4e00\u4e2a\u7ec4\u4ef6\u89e6\u53d1\u4e8b\u4ef6\u7684\u4f8b\u5b50\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"view\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;label&gt;<\/span>{{item.text}}<span class=\"nt\">&lt;\/label&gt;<\/span>\r\n  <span class=\"nt\">&lt;button<\/span> <span class=\"na\">(click)=<\/span><span class=\"s\">\"doneClicked()\"<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"destroy\"<\/span><span class=\"nt\">&gt;&lt;\/button&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5728TodoItem\u7ec4\u4ef6\u7684\u6a21\u677f\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u5220\u9664\u6309\u94ae\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">library<\/span> <span class=\"n\">todo_app<\/span><span class=\"o\">.<\/span><span class=\"na\">todo_item<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"s\">\"package:angular2\/angular2.dart\"<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"s\">\".\/todo_store.dart\"<\/span> <span class=\"k\">as<\/span> <span class=\"n\">model<\/span> <span class=\"kd\">show<\/span> <span class=\"n\">TodoItem<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@Component<\/span><span class=\"o\">(<\/span>\r\n    <span class=\"nl\">selector:<\/span> <span class=\"s\">'todo-item'<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"nl\">templateUrl:<\/span> <span class=\"s\">'.\/todo_item.html'<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"nl\">styleUrls:<\/span> <span class=\"kd\">const<\/span> <span class=\"o\">[<\/span><span class=\"s\">'.\/todo_item.css'<\/span><span class=\"o\">]<\/span>\r\n<span class=\"o\">)<\/span>    \r\n<span class=\"kd\">class<\/span> <span class=\"nc\">TodoItem<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"nd\">@Input<\/span><span class=\"o\">()<\/span>\r\n  <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"na\">TodoItem<\/span> <span class=\"n\">item<\/span><span class=\"o\">;<\/span>\r\n\r\n  <span class=\"nd\">@Output<\/span><span class=\"o\">()<\/span>\r\n  <span class=\"n\">EventEmitter<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"na\">TodoItem<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">done<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"n\">EventEmitter<\/span><span class=\"o\">();<\/span>\r\n\r\n  <span class=\"n\">doneClicked<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">done<\/span><span class=\"o\">.<\/span><span class=\"na\">add<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">item<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4e3a\u4e86\u89e6\u53d1\u6765\u81ea\u7684\u4e8b\u4ef6\uff0c\u6211\u5728\u8fd9\u91cc\u6dfb\u52a0\u4e86\u4e00\u4e2a\u5e26\u6709@Output()\u6ce8\u91ca\u7684EventEmitter\u3002\u5e76\u4e14\u901a\u8fc7\u70b9\u51fbDelete\u6309\u94ae\u6765\u5c06\u8be5EventEmitter\u7ed1\u5b9a\u5230\u89e6\u53d1\u4e8b\u4ef6\u7684\u65b9\u6cd5\u4e2d\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u5df2\u7ecf\u8bbe\u7f6e\u597d\u4e86\uff0c\u5728TodoItem\u7ec4\u4ef6\u4e2d\u89e6\u53d1done\u4e8b\u4ef6\uff0c\u63a5\u4e0b\u6765\u8ba9\u6211\u4eec\u5728\u7236\u7ec4\u4ef6\u7684TodoList\u7ec4\u4ef6\u4e2d\u6765\u7ed1\u5b9a\u8fd9\u4e2adone\u4e8b\u4ef6\u5427\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;todo-item<\/span> <span class=\"na\">[item]=<\/span><span class=\"s\">\"item\"<\/span> <span class=\"na\">(done)=<\/span><span class=\"s\">\"removeItem($event)\"<\/span><span class=\"nt\">&gt;&lt;\/todo-item&gt;<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"n\">removeItem<\/span><span class=\"o\">(<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"na\">TodoItem<\/span> <span class=\"n\">item<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">store<\/span><span class=\"o\">.<\/span><span class=\"na\">removeItem<\/span><span class=\"o\">(<\/span><span class=\"n\">item<\/span><span class=\"o\">);<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u8981\u6c42\u5220\u9664TodoStore\u4e2d\u7684model.TodoItem\u3002<\/p>\n<p>\u9019\u6a23\u4e00\u4f86\uff0c\u522a\u9664\u6309\u9215\u7684\u5be6\u73fe\u5c31\u5b8c\u6210\u4e86\u3002<\/p>\n<h1>\u8fdb\u4e00\u6b65\u63d0\u9ad8\u53d8\u5316\u68c0\u6d4b\u7684\u6548\u7387<\/h1>\n<p>\u8ba9\u6211\u4eec\u5b9e\u9645\u68c0\u67e5\u4e00\u4e0b\uff0cChange Detection\u662f\u5728\u4f55\u65f6\u6267\u884c\uff0c\u5e76\u901a\u8fc7\u5c5e\u6027\u7ed1\u5b9a\u4eceStore\u7684\u6a21\u578b\u5bf9\u8c61TodoItem\u4e2d\u8bbf\u95ee\u6570\u636e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"view\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;label&gt;<\/span>{{item.text}}<span class=\"nt\">&lt;\/label&gt;<\/span>\r\n  <span class=\"nt\">&lt;button<\/span> <span class=\"na\">(click)=<\/span><span class=\"s\">\"doneClicked()\"<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"destroy\"<\/span><span class=\"nt\">&gt;&lt;\/button&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u4f7f\u7528Dart\u7684Setter\u548cGetter\u529f\u80fd\uff0c\u5728\u6bcf\u6b21\u8bbf\u95eetext\u65f6\u5c06\u65e5\u5fd7\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">TodoItem<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kt\">String<\/span> <span class=\"n\">_text<\/span><span class=\"o\">;<\/span>\r\n\r\n  <span class=\"kd\">get<\/span> <span class=\"n\">text<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"n\">print<\/span><span class=\"o\">(<\/span><span class=\"s\">'getting value for text <\/span><span class=\"si\">${this._text}<\/span><span class=\"s\">'<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">_text<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"kd\">set<\/span> <span class=\"n\">text<\/span><span class=\"o\">(<\/span><span class=\"kt\">String<\/span> <span class=\"n\">value<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">_text<\/span> <span class=\"o\">=<\/span> <span class=\"n\">value<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"n\">TodoItem<\/span><span class=\"o\">(<\/span><span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">_text<\/span><span class=\"o\">);<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\u4ee5\u4e0b\u4ee3\u7801\u4e2d\u7684\u6587\u672c\u503c ${this._text}\u3002<\/p>\n<p>\u6211\u4f1a\u5728\u6d4f\u89c8\u5668\u4e0a\u8fdb\u884c\u64cd\u4f5c\u786e\u8ba4\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Screen Shot 2016-01-04 at 10.21.37 AM.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/194-0.png\" alt=\"Screen Shot 2016-01-04 at 10.21.37 AM.png\" \/><\/div>\n<p>\u6bcf\u6b21\u5728\u8f93\u5165\u6846\u4e2d\u8f93\u5165\u952e\u65f6\uff0c\u90fd\u4f1a\u8f93\u51fa\u5927\u91cf\u65e5\u5fd7\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5728\u6b64\u5904\u66f4\u6539\u68c0\u6d4b\u4f1a\u68c0\u67e5\u6bcf\u4e2aTodoInput\u7684\u6587\u672c\u503c\u662f\u5426\u6709\u53d8\u5316\uff0c\u5e76\u786e\u8ba4\u6ca1\u6709\u53d8\u5316\u3002\u4ece\u5b9e\u9645\u7684Todo List\u5e94\u7528\u7a0b\u5e8f\u64cd\u4f5c\u6765\u770b\uff0c\u8fd9\u663e\u7136\u662f\u4e0d\u5fc5\u8981\u7684\u68c0\u67e5\uff0c\u5e76\u4e14\u4f3c\u4e4e\u662f\u4f4e\u6548\u7684\u3002<\/p>\n<p>Angular2\u5728\u6d4f\u89c8\u5668\u4e8b\u4ef6\u53d1\u751f\u65f6\uff0c\u4f1a\u6bcf\u6b21\u6267\u884c\u6539\u53d8\u68c0\u6d4b\uff0c\u5e76\u4ee5\u6df1\u5ea6\u4f18\u5148\u641c\u7d22\u7684\u65b9\u5f0f\u9ed8\u8ba4\u904d\u5386\u6240\u6709\u7ec4\u4ef6\u3002\u5c3d\u7ba1\u8fd9\u663e\u5f97\u6548\u7387\u4f4e\u4e0b\uff0c\u4f46\u5b9e\u9645\u4e0a\u5b83\u7684\u6027\u80fd\u975e\u5e38\u9ad8\uff0c\u56e0\u6b64\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u5e76\u4e0d\u6210\u95ee\u9898\u3002\u4e0d\u8fc7\uff0c\u6211\u4eec\u662f\u5426\u80fd\u591f\u660e\u663e\u5730\u7701\u7565\u6389\u4e0d\u5fc5\u8981\u7684\u68c0\u67e5\u5462\uff1f<\/p>\n<h1>\u4e0d\u53ef\u53d8\u6027<\/h1>\n<p>Angular2\u7684\u7ec4\u4ef6\u53ef\u4ee5\u5206\u522b\u6307\u5b9aChangeDetectionStrategy\u3002\u901a\u8fc7\u8fd9\u4e2a\u6307\u5b9a\u53ef\u4ee5\u5b9e\u73b0\u66f4\u52a0\u9ad8\u6548\u7684\u68c0\u67e5\u3002<\/p>\n<p>\u5728\u672c\u6b21\u7684Todo List\u5e94\u7528\u7a0b\u5e8f\u89c4\u8303\u4e2d\uff0c\u8003\u8651\u5230TodoItem\u7ec4\u4ef6\u7684\u6570\u636e\u4e0d\u4f1a\u5728\u7ec4\u4ef6\u751f\u6210\u540e\u8fdb\u884c\u66f4\u65b0\uff0c\u56e0\u6b64\u53ef\u4ee5\u89c6\u5176\u4e3a\u5b9e\u9645\u4e0a\u7684\u4e0d\u53ef\u53d8\u5bf9\u8c61\u3002\u56e0\u6b64\uff0c\u5728\u7ec4\u4ef6\u751f\u6210\u540e\uff0c\u53ef\u4ee5\u8df3\u8fc7Change Detection\u7684\u68c0\u67e5\u800c\u4e0d\u4f1a\u6709\u95ee\u9898\u3002\u901a\u8fc7\u5c06ChangeDetectionStrategy\u4fee\u6539\u4e3aOnPush\uff0c\u53ef\u4ee5\u6307\u793a\u8be5\u884c\u4e3a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Component<\/span><span class=\"o\">(<\/span>\r\n    <span class=\"nl\">selector:<\/span> <span class=\"s\">'todo-item'<\/span><span class=\"o\">,<\/span>\r\n    <span class=\"c1\">\/\/ \u7565<\/span>\r\n    <span class=\"nl\">changeDetection:<\/span> <span class=\"n\">ChangeDetectionStrategy<\/span><span class=\"o\">.<\/span><span class=\"na\">OnPush<\/span><span class=\"o\">)<\/span>\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">TodoItem<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"c1\">\/\/ \u7565<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Screen Shot 2016-01-04 at 11.13.19 AM.png\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/201-0.png\" alt=\"Screen Shot 2016-01-04 at 11.13.19 AM.png\" \/><\/div>\n<p>\u73b0\u5728\uff0c\u6bcf\u6b21\u952e\u5165Key\u65f6\u4e0d\u518d\u6d6a\u8d39\u68c0\u67e5\u6bcf\u4e2aTodoItem\u7ec4\u4ef6\uff0c\u800c\u662f\u4ec5\u5728\u751f\u6210\u65f6\u8fdb\u884c\u4e00\u6b21\u68c0\u67e5\u3002<\/p>\n<p>\u8fdb\u4e00\u6b65\u7684\u5b66\u4e60\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u8d44\u6599\uff1a<br \/>\n\u5173\u4e8eAngular2\u7684\u53d8\u66f4\u68c0\u6d4b\uff08\u91cd\u590d\uff09<br \/>\n\u5728Angular 2\u4e2d\u7684\u53d8\u66f4\u68c0\u6d4b\uff08\u91cd\u590d\uff09<br \/>\nAngular\uff0c\u4e0d\u53ef\u53d8\u6027\u548c\u5c01\u88c5\u6027<\/p>\n<p>\u4e5f\u8bb8\u5c1d\u8bd5\u63a2\u7d22Change Detection\u7684\u5b9e\u73b0\u4f1a\u5f88\u6709\u8da3\u3002<\/p>\n<h1>\u603b\u7ed3<\/h1>\n<p>\u81ea\u5f9e\u63a8\u51fa\u6e2c\u8a66\u7248\u4ee5\u4f86\uff0c\u6211\u500b\u4eba\u7684\u611f\u89ba\u662f\uff0cAngular2\u662f\u4e00\u500b\u6613\u65bc\u7406\u89e3\u8a9e\u6cd5\u548c\u64cd\u4f5c\uff0c\u540c\u6642\u4e5f\u975e\u5e38\u9ad8\u6548\u7684\u7db2\u7d61\u6846\u67b6\u3002\u6b64\u5916\uff0c\u9019\u53ea\u662f\u6211\u7684\u500b\u4eba\u5370\u8c61\uff0cAngular2\u89e3\u6c7a\u4e86\u6211\u5728Angular1\u6642\u4ee3\u611f\u53d7\u5230\u7684\u6cae\u55aa\uff0c\u8b93\u5b83\u5728\u6211\u7684\u5fc3\u667a\u6a21\u578b\u4e2d\u81ea\u7136\u9069\u61c9\uff0c\u8b93\u6211\u5728\u7de8\u5beb\u4ee3\u78bc\u6642\u611f\u5230\u8212\u9069\u6109\u5feb\u3002<\/p>\n<p>\u968f\u7740Angular2\u7684\u4f7f\u7528\u548c\u4e0eImmutable\u5e93\u548cFlux\u6a21\u5f0f\u7684\u7ed3\u5408\u7b49\u7b49\uff0c\u5c06\u4f1a\u51fa\u73b0\u8bb8\u591a\u65b0\u7684\u5b9e\u8df5\u65b9\u6cd5\u3002\u6211\u4e5f\u5e0c\u671b\u81ea\u5df1\u5728\u8ffd\u968fAngular2\u7684\u8fc7\u7a0b\u4e2d\u80fd\u591f\u4e0e\u5927\u5bb6\u5206\u4eab\u3002<\/p>\n<p>\u6b64\u5916\uff0cDart\u662f\u4e00\u79cd\u975e\u5e38\u9ad8\u6548\u548c\u51fa\u8272\u7684\u8bed\u8a00\uff0c\u4f46\u662f\u5f53\u4f7f\u7528Reflection(Mirror)API\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u4ed4\u7ec6\u8bbe\u7f6e\uff0c\u53ef\u80fd\u5bfc\u81f4\u5728\u7f16\u8bd1\u6210JS\u65f6Tree Shaking\u5931\u8d25\uff0c\u4ece\u800c\u5bfc\u81f4\u4ee3\u7801\u5927\u5c0f\u589e\u52a0\u7684\u95ee\u9898\u3002\u6211\u8ba4\u4e3a\u8fd9\u53ef\u80fd\u662f\u5bfc\u81f4\u53ef\u9760\u7684Web\u6846\u67b6\u96be\u4ee5\u5efa\u7acb\u7684\u91cd\u8981\u539f\u56e0\u3002Reflection\u95ee\u9898\u6709\u671b\u901a\u8fc7Reflectable\u5f97\u5230\u89e3\u51b3\uff0c\u4f46\u662fAngular2\u5728\u5185\u90e8\u5f15\u5165\u4e86\u7c7b\u4f3c\u4e8eReflectable\u7684\u673a\u5236\uff0c\u4ee5\u786e\u4fdd\u5728\u7f16\u8bd1\u6210JS\u540e\u4ee3\u7801\u7684\u5927\u5c0f\u4fdd\u6301\u8f83\u5c0f\uff0c\u8fd9\u5bf9\u4e8eDart\u6765\u8bf4\uff0cAngular2\u53ef\u4ee5\u6210\u4e3a\u4e00\u4e2a\u6740\u624b\u7ea7\u7684\u6846\u67b6\u53ef\u4ee5\u671f\u5f85\u7684\u3002<\/p>\n<p>\u5e0c\u671b2016\u5e74\u6210\u4e3aAngular 2\u548cDart\u6fc0\u53d1WebApp\u53cd\u5e94\u5f0f\u5f00\u53d1\u70ed\u6f6e\u7684\u4e00\u5e74\u3002<\/p>\n<h1>\u4e2a\u4eba\u7684\u5f85\u529e\u4e8b\u9879<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Client side routing (For SPA)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Dart\u7248\u306e\u306ehttp module\u306b\u3064\u3044\u3066\u3002Dart SDK\u306e\u3082\u306e\u3092\u305d\u306e\u307e\u307e\u4f7f\u3046\u306e\u304b\u5404\u81ea\u5de5\u592b\u3059\u308b\u306e\u304b\u3001\u305d\u308c\u3068\u3082API\u3092TypeScript\u7248\u306b\u5408\u308f\u305b\u305f\u8584\u3044wrapper\u304c\u63d0\u4f9b\u3055\u308c\u308b\u306e\u304b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Angular Material for Angular2\u306e\u9032\u6357(pub package\u3068\u3057\u3066\u3059\u3067\u306bbeta version\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u304c\u3001\u307e\u3060\u521d\u671f\u6bb5\u968e\u306b\u898b\u3048\u308b)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Angular2\u306f\u5fc5\u8981\u306b\u5fdc\u3058\u3066Polymer Element\u7b49\u306eWeb Component\u3092Property Binding\u3084Event Binding\u3067\u53d6\u308a\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u304c\u3001\u4f8b\u3048\u3070PolymerDart\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u306f\u5b9f\u969b\u306b\u5b9f\u7528\u7684\u306a\u306e\u304b\u3069\u3046\u304b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Angular2\u72ec\u81ea\u306ereflectable\u306e\u4ed5\u7d44\u307f<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Angular2\u306etransformer\u306e\u4ed5\u7d44\u307f<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u901a\u8fc7\u786e\u8ba4\u7531Angular2 Dart\u7248\u672c\u521b\u5efa\u7684\u7b80\u5355Todo List\u5e94\u7528\u7684\u8fd0\u884c\uff0c\u901a\u8fc7\u89e3\u91ca\u8be5\u4ee3\u7801\u6765\u4e86\u89e3An [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-39206","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u521b\u5efa\u5e76\u7406\u89e3Angular2\u7684TODO\u5217\u8868 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u521b\u5efa\u5e76\u7406\u89e3angular2\u7684todo\u5217\u8868\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u521b\u5efa\u5e76\u7406\u89e3Angular2\u7684TODO\u5217\u8868\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u901a\u8fc7\u786e\u8ba4\u7531Angular2 Dart\u7248\u672c\u521b\u5efa\u7684\u7b80\u5355Todo List\u5e94\u7528\u7684\u8fd0\u884c\uff0c\u901a\u8fc7\u89e3\u91ca\u8be5\u4ee3\u7801\u6765\u4e86\u89e3An [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u521b\u5efa\u5e76\u7406\u89e3angular2\u7684todo\u5217\u8868\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-24T03:54:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-29T20:03:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d390237434c4406c7862b\/27-0.png\" \/>\n<meta name=\"author\" content=\"\u6e05, \u5b87\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u5b87\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%88%9b%e5%bb%ba%e5%b9%b6%e7%90%86%e8%a7%a3angular2%e7%9a%84todo%e5%88%97%e8%a1%a8\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%88%9b%e5%bb%ba%e5%b9%b6%e7%90%86%e8%a7%a3angular2%e7%9a%84todo%e5%88%97%e8%a1%a8\/\",\"name\":\"\u521b\u5efa\u5e76\u7406\u89e3Angular2\u7684TODO\u5217\u8868 - Blog - Silicon 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