25. Use the Getscript () method to load and execute the JS file asynchronously

Use the getScript() method to asynchronously request and execute a file in JavaScript format on the server, whose invocation format is as follows:

jQuery.getScript(url,[callback])Or$.getScript(url,[callback])

The parameter URL is the server request address, and the optional callback parameter is the callback function that executes after the request succeeds.

For example, click the "Load" button to invoke a getScript() JavaScript-formatted file that loads and executes the specified name in the server and display the loaded data content in the page, as shown in:

Effects displayed in the browser:

As you can see, when you click the "Load" button to call the getScript() method to load the JavaScript format file in the server, the file code is automatically executed and the data content is displayed in the <ul> element.

25. Use the Getscript () method to load and execute the JS file asynchronously