{"id":38404,"date":"2023-02-07T07:19:56","date_gmt":"2023-10-23T19:33:39","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/outsystems-%e7%94%a8-javascript-%e6%94%b9%e5%8f%98%e8%be%93%e5%85%a5%e5%80%bc%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%9a\/"},"modified":"2024-04-29T13:29:01","modified_gmt":"2024-04-29T05:29:01","slug":"outsystems-%e7%94%a8-javascript-%e6%94%b9%e5%8f%98%e8%be%93%e5%85%a5%e5%80%bc%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%9a","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/outsystems-%e7%94%a8-javascript-%e6%94%b9%e5%8f%98%e8%be%93%e5%85%a5%e5%80%bc%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%9a\/","title":{"rendered":"[OutSystems] \u7528 JavaScript \u6539\u53d8\u8f93\u5165\u503c\u7684\u65b9\u6cd5\uff1a"},"content":{"rendered":"<p>\u4f7f\u7528JavaScript\u901a\u8fc7DOM\u5143\u7d20\u7684.value\u8fdb\u884cInput Widget\u503c\u7684\u66f4\u6539\u65f6\uff0c\u4e0d\u4f1a\u5c06\u503c\u53cd\u6620\u5230\u4e0eInput\u76f8\u5173\u8054\u7684\u53d8\u91cf\u4e2d\u3002<\/p>\n<p>\u6211\u60f3\u5bfb\u627e\u89e3\u51b3\u65b9\u6848\uff0c\u56e0\u4e3a\u5728\u4e3a\u8f93\u5165\u6dfb\u52a0\u529f\u80fd\u7684\u6a21\u5757\u65f6\u9047\u5230\u4e86\u56f0\u96be\u3002<\/p>\n<h1>\u73af\u5883\u4fe1\u606f<\/h1>\n<p>\u4e2a\u4eba\u73af\u5883\uff08\u7248\u672c11.21.0\uff08\u6784\u5efa39357\uff09\uff09<br \/>\n\u670d\u52a1\u5de5\u4f5c\u5ba4\uff08\u7248\u672c11.54.13\uff09<\/p>\n<h1>\u6837\u672c<\/h1>\n<p>HousesoftSampleReactive \u7684\u7248\u672c\u662f 1.0.19\u3002<br \/>\n\u8bf7\u53c2\u8003 ChangeInputValueWithJS \u5c4f\u5e55\u8bf4\u660e\u3002<\/p>\n<h1>\u7b54\u6848\uff1a\u4f8b\u5b50\uff1a\u4f7f\u7528JavaScript\u4fee\u6539input.value\u7684\u503c\u3002<\/h1>\n<p>\u9996\u5148\u9a8c\u8bc1\u4e00\u4e0b\u9519\u8bef\u60c5\u51b5\u7684\u5b9e\u73b0\u3002<\/p>\n<p>\u4ee5\u4e0b\u7684\u4ee3\u7801\u5728JavaScript\u5143\u7d20\u4e2d\u5199\u5165\u540e\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002<br \/>\n\u63d0\u9192\u4e00\u4e0b\uff0cInput Widget\u7684Id\u88ab\u4f20\u9012\u7ed9JavaScript\u5143\u7d20\u4f5c\u4e3a\u8f93\u5165\u53c2\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nb\">document<\/span><span class=\"p\">.<\/span><span class=\"nf\">getElementById<\/span><span class=\"p\">(<\/span><span class=\"nx\">$parameters<\/span><span class=\"p\">.<\/span><span class=\"nx\">InputId<\/span><span class=\"p\">).<\/span><span class=\"nx\">value<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">JavaScript\u3067input.value\u3092\u66f4\u65b0<\/span><span class=\"dl\">\"<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d347037434c4406c68e7d\/10-0.png\" alt=\"image.png\" \/><\/div>\n<h1>\u8003\u8651\u539f\u56e0\uff1a\u53ef\u80fd\u662f\u7531\u4e8eReact\u7684\u539f\u56e0<\/h1>\n<p>OutSystems\u7684Reactive\/Mobile\u4f7f\u7528React\u4f5c\u4e3a\u524d\u7aef\u6846\u67b6\u3002<br \/>\n\u56e0\u6b64\uff0c\u5f53\u5728\u5ba2\u6237\u7aef\u53d1\u751f\u5947\u602a\u7684\u60c5\u51b5\u65f6\uff0c\u5e94\u8be5\u6000\u7591React\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u5f53\u6211\u7528\u5173\u952e\u8bcd\u201cReact\u201d\u641c\u7d22\u65f6\uff0c\u627e\u5230\u4e86\u4ee5\u4e0b\u9875\u9762\u3002<br \/>\n\u4f7f\u7528\u539f\u59cb JavaScript \u6539\u53d8 React \u8f93\u5165\u503c<\/p>\n<blockquote><p>React\u8986\u76d6\u4e86\u539f\u751f\u7684JavaScript onChange\u884c\u4e3a\u3002\u5728React\u7684\u773c\u4e2d\uff0c\u89e6\u53d1onChange\u4e8b\u4ef6\u5bf9\u8f93\u5165\u6846\u7684\u503c\u6ca1\u6709\u4efb\u4f55\u6539\u53d8\u3002<\/p><\/blockquote>\n<p>\u7531\u4e8eReact\u6539\u53d8\u4e86JavaScript\u81ea\u5e26\u7684onChange\u884c\u4e3a\uff0c\u6240\u4ee5\u4ec5\u4ec5\u89e6\u53d1onChange\u4e8b\u4ef6\u5728React\u7684\u89c6\u89d2\u4e0b\u770b\u8d77\u6765\u5e76\u6ca1\u6709\u6539\u53d8\u503c\u3002<\/p>\n<h1>\u4f7f\u7528valuetracker\u8fdb\u884c\u5bf9\u7b56\u3002<\/h1>\n<p>\u5728\u5f15\u7528\u7684\u9875\u9762\u4e2d\u63d0\u5230\u7684\u5bf9\u7b56\u662f\u5728\u300c\u8003\u8651\u539f\u56e0\u300d\u4e00\u8282\u4e2d\u63d0\u53ca\u7684\u3002<br \/>\n\u7531\u4e8e Platform Server v11.12.0\uff0cReact \u7684\u7248\u672c\u662f 16\u3002\u56e0\u6b64\uff0c\u53ef\u4ee5\u91c7\u7528\u5f15\u7528\u9875\u9762\u4e2d\u63d0\u5230\u7684\u4f7f\u7528 _valueTracker \u7684\u65b9\u6cd5\u6765\u89e3\u51b3\u3002<\/p>\n<p>JavaScript\u4e2d\u7684\u4ee3\u7801\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/ see: https:\/\/chuckconway.com\/changing-a-react-input-value-from-vanilla-javascript\/<\/span>\r\n<span class=\"c1\">\/\/ 1<\/span>\r\n<span class=\"kd\">let<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">document<\/span><span class=\"p\">.<\/span><span class=\"nf\">getElementById<\/span><span class=\"p\">(<\/span><span class=\"nx\">$parameters<\/span><span class=\"p\">.<\/span><span class=\"nx\">InputId<\/span><span class=\"p\">);<\/span>\r\n<span class=\"c1\">\/\/ 2 <\/span>\r\n<span class=\"kd\">let<\/span> <span class=\"nx\">lastValue<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">element<\/span><span class=\"p\">.<\/span><span class=\"nx\">value<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nx\">element<\/span><span class=\"p\">.<\/span><span class=\"nx\">value<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">JavaScript\u3067input.value\u3092\u66f4\u65b0\u3057\u3066dispatchEvent\uff08_valueTracker\u5229\u7528\uff09<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">let<\/span> <span class=\"nx\">ev<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Event <\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">input<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span> <span class=\"na\">bubbles<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span> <span class=\"p\">});<\/span>\r\n<span class=\"c1\">\/\/ 3<\/span>\r\n<span class=\"kd\">let<\/span> <span class=\"nx\">tracker<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">element<\/span><span class=\"p\">.<\/span><span class=\"nx\">_valueTracker<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">if <\/span><span class=\"p\">(<\/span><span class=\"nx\">tracker<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">tracker<\/span><span class=\"p\">.<\/span><span class=\"nf\">setValue<\/span><span class=\"p\">(<\/span><span class=\"nx\">lastValue<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c1\">\/\/ 4<\/span>\r\n<span class=\"nx\">element<\/span><span class=\"p\">.<\/span><span class=\"nf\">dispatchEvent<\/span><span class=\"p\">(<\/span><span class=\"nx\">ev<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u83b7\u53d6\u4e0eInput Widget\u76f8\u5bf9\u5e94\u7684input\u5143\u7d20<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4fdd\u5b58\u5148\u524d\u7684\u503c\uff0c\u5e76\u901a\u8fc7.value\u5c5e\u6027\u4fee\u6539\u503c<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5c06_valueTracker\u7684\u503c\u8bbe\u7f6e\u4e3a\u5148\u524d\u7684\u503c<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u89e6\u53d1input\u4e8b\u4ef6<\/ol>\n<p>\u5728\u5176\u4e2d\u7684\u6d41\u7a0b\u4e2d\uff0c\u7b2c3\u6b65\u9aa4\u975e\u5e38\u5173\u952e\u3002<br \/>\n\u4e0d\u8fc7\uff0c\u7531\u4e8e\u524d\u7f00\u5e26\u6709&#8221;_&#8221;\uff0c\u6240\u4ee5\u4f3c\u4e4e\u5e76\u4e0d\u592a\u9002\u5408\u516c\u7136\u4f7f\u7528\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d347037434c4406c68e7d\/22-0.png\" alt=\"image.png\" \/><\/div>\n<h1>\u4f7f\u7528\u7b2c\u4e8c\u79cd\u65b9\u6cd5\uff0c\u76f4\u63a5\u8c03\u7528\u8f93\u5165\u7684setter\u51fd\u6570\u3002<\/h1>\n<p>\u5982\u679cReact\u8981\u4fee\u6539\u539f\u59cb\u7684setter\u51fd\u6570\uff0c\u90a3\u4e48\u53ef\u4ee5\u4f7f\u7528\u4fee\u6539\u524d\u7684setter\u51fd\u6570\u6765\u8bbe\u7f6e\u503c\uff0c\u8fd9\u662f\u4e00\u4e2a\u60f3\u6cd5\u3002<br \/>\n\u8fd9\u662f\u5728\u201cReact\u4e2d\u89e6\u53d1\u66f4\u6539\u6216\u8f93\u5165\u4e8b\u4ef6\u7684\u6700\u4f73\u65b9\u6cd5\u201d\u7684\u6700\u4f73\u7b54\u6848\u4e2d\u63d0\u5230\u7684\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/ see: https:\/\/stackoverflow.com\/questions\/23892547\/what-is-the-best-way-to-trigger-change-or-input-event-in-react-js#46012210<\/span>\r\n<span class=\"c1\">\/\/ 1<\/span>\r\n<span class=\"kd\">let<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">document<\/span><span class=\"p\">.<\/span><span class=\"nf\">getElementById<\/span><span class=\"p\">(<\/span><span class=\"nx\">$parameters<\/span><span class=\"p\">.<\/span><span class=\"nx\">InputId<\/span><span class=\"p\">);<\/span>\r\n<span class=\"c1\">\/\/ 2<\/span>\r\n<span class=\"kd\">let<\/span> <span class=\"nx\">nativeSetter<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">Object<\/span><span class=\"p\">.<\/span><span class=\"nf\">getOwnPropertyDescriptor<\/span><span class=\"p\">(<\/span><span class=\"nb\">window<\/span><span class=\"p\">.<\/span><span class=\"nx\">HTMLInputElement<\/span><span class=\"p\">.<\/span><span class=\"nx\">prototype<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">value<\/span><span class=\"dl\">\"<\/span><span class=\"p\">).<\/span><span class=\"kd\">set<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nx\">nativeSetter<\/span><span class=\"p\">.<\/span><span class=\"nf\">call<\/span><span class=\"p\">(<\/span><span class=\"nx\">element<\/span><span class=\"p\">,<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">JavaScript\u3067input\u306esetter\u3092\u547c\u3093\u3067dispatchEvent<\/span><span class=\"dl\">\"<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"c1\">\/\/ 3<\/span>\r\n<span class=\"kd\">let<\/span> <span class=\"nx\">ev<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Event <\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">input<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span> <span class=\"na\">bubbles<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span> <span class=\"p\">});<\/span>\r\n<span class=\"nx\">element<\/span><span class=\"p\">.<\/span><span class=\"nf\">dispatchEvent<\/span><span class=\"p\">(<\/span><span class=\"nx\">ev<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u83b7\u53d6\u4e0eInput Widget\u76f8\u5bf9\u5e94\u7684input\u5143\u7d20<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4f7f\u7528input\u5143\u7d20\u7684setter\u51fd\u6570\uff08\u901a\u8fc7PropertyDescriptor\u7684set\u51fd\u6570\u83b7\u53d6\uff09\u6765\u66f4\u65b0\u503c<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u89e6\u53d1input\u4e8b\u4ef6<\/ol>\n<p>\u540c\u6837\u91c7\u7528\u8fd9\u79cd\u65b9\u6cd5\u7684\u8fd8\u6709\u540d\u4e3aInput Masks Library\u7684Forge\u7ec4\u4ef6\u3002<\/p>\n<h1>\u5728\u5e94\u7528\u4e2d<\/h1>\n<p>\u6211\u60f3\u9009\u62e9\u53ea\u4f7f\u7528\u7eaf\u7cb9\u7684JavaScript\u5b9e\u73b0\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u3002<br \/>\n\u7136\u800c\uff0c\u6211\u4e5f\u5e0c\u671b\u8003\u8651\u5230OutSystems\u7684\u5347\u7ea7\uff08\u5305\u62ecReact\u7684\u5347\u7ea7\u548c\u524d\u7aef\u6846\u67b6\u672c\u8eab\u7684\u66f4\u6539\uff09\u53ef\u80fd\u5bfc\u81f4\u5b83\u65e0\u6cd5\u4f7f\u7528\u7684\u60c5\u51b5\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u8fd9\u79cd\u884c\u4e3a\u7684\u7279\u6027\u5206\u79bb\u6210\u516c\u5171\u7ec4\u4ef6\u7684Block\u6216Client Action\uff0c\u5e76\u4e14\u4f7f\u5176\u80fd\u591f\u5728\u9700\u8981\u65f6\u8f7b\u677e\u66ff\u6362\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528JavaScript\u901a\u8fc7DOM\u5143\u7d20\u7684.value\u8fdb\u884cInput Widget\u503c\u7684\u66f4\u6539\u65f6\uff0c\u4e0d\u4f1a\u5c06\u503c\u53cd\u6620\u5230\u4e0eI [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38404","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>[OutSystems] \u7528 JavaScript \u6539\u53d8\u8f93\u5165\u503c\u7684\u65b9\u6cd5\uff1a - 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\/outsystems-\u7528-javascript-\u6539\u53d8\u8f93\u5165\u503c\u7684\u65b9\u6cd5\uff1a\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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