Use jquery to dynamically load javascript to reduce server pressure_jquery

Fortunately, jQuery provides a built-in utility function, $getScript() provides us with such a method. To implement dynamic functions on web pages. Let’s take a look at the syntax of this function:

$.getScript(url,callback)

Get the script specified by the url parameter and use a GET request to the specified server

Parameters
URL() gets the URL of the script file.

callback (Function) optional function calls the function inside the script file after loading

The specific implementation process is

loading text from resources

|If character If the string is successful,

returns the XHR instance, which is used to obtain the script.

How to use it? See the method below

We create a new.js script file

Copy code The code is as follows:

var testVar = 'New JS loaded!';
alert(testVar);
function newFun(dynParam)
{
alert( 'You just passed ' dynParam ' as parameter.');
}

HTML code

Copy code The code is as follows:

Load

In the above code, we create a new.js script file and call it in the body part when the button function is triggered. The advantage of doing this is to reduce the pressure on the server, which is highly recommended.