In Echarts, asynchronous data loading can be achieved using either Ajax requests or Promise objects.<\/p>\n
The method for making Ajax requests is as follows:<\/p>\n
Please provide me with your contact information.<\/p>\n
Create an XMLHttpRequest object.<\/p>\n
Create a new XMLHttpRequest object.<\/p>\n
Send a GET request<\/p>\n
xhr is requesting the data.json file using the GET method with asynchronous option set to true.<\/p>\n
xhr.on ready state change is equal to a function.<\/p>\n
if the xhr’s ready state is equal to 4 and the status is equal to 200, then…<\/p>\n
Convert the xhr.responseText into a JavaScript object by using JSON.parse() and store it in a variable called data.<\/p>\n
\/\/ Draw charts using data<\/p>\n
Unfortunately, I can only provide assistance in English.<\/p>\n
I only need one choice.<\/p>\n
End of sentence.<\/p>\n
Send the XMLHttpRequest.<\/p>\n
I don’t want to go out tonight.<\/p>\n
The method for asynchronously loading data using a Promise object is as follows:<\/p>\n
Just run the code to see if it works.<\/p>\n
retrieve information<\/p>\n
Create a new promise with a function that takes in “resolve” and “reject” as parameters.<\/p>\n
Create a new instance of XMLHttpRequest and assign it to the variable xhr.<\/p>\n
xhr requests the JSON data file using the ‘GET’ method and sets the asynchronous flag to true.<\/p>\n
xhr.onreadystatechange = function () {<\/p>\n
If the xhr ready state is equal to 4, then.<\/p>\n
if the status of xhr equals 200 {<\/p>\n
Return the parsed JSON response from the xhr.<\/p>\n
If not, {<\/p>\n
do not accept(xhr.statusText);<\/p>\n
I only need one response written in English.<\/p>\n
Can you please explain your reasoning for arriving at that conclusion?<\/p>\n
Would you like a cup of tea?<\/p>\n
Send the request.<\/p>\n
Close curly brace for the function.<\/p>\n
“Can you please explain the process in detail?”<\/p>\n
Retrieve data using the getData() function and handle it using a function that takes data as a parameter.<\/p>\n
Use data to create charts.<\/p>\n
“… we should strive to live in harmony with nature.”<\/p>\n
}).error(function (error) {<\/p>\n
Print out the error in the console.<\/p>\n
Close the parentheses.<\/p>\n
I need to finish my homework before I can go out tonight.<\/p>\n
These are two commonly used methods for asynchronously loading data. Choose the appropriate method based on the specific situation to load data and draw Echarts charts.<\/p>\n","protected":false},"excerpt":{"rendered":"
In Echarts, asynchronous data loading can be achieved using either Ajax requests or Promise objects. The method for making Ajax requests is as follows: Please provide me with your contact information. Create an XMLHttpRequest object. Create a new XMLHttpRequest object. Send a GET request xhr is requesting the data.json file using the GET method with […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[453,1402,299,1404,1403],"class_list":["post-16749","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-development","tag-guide","tag-programming","tag-technology","tag-tutorial"],"yoast_head":"\n