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Today, the editor will share with you the relevant knowledge points of JavaScript function and event instance analysis. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

JavaScript functions and events

Typically, we need to execute code when an event occurs, such as when the user clicks a button.

If we put the JavaScript code into the function, we can call the function when the event occurs.

You will learn more about JavaScript functions and events in later chapters.

In or in the JavaScript

You can put an unlimited number of scripts in the HTML document.

The script can be in or part of a HTML, or in both parts.

The usual practice is to put the function in the section, or at the bottom of the page. This allows you to put them in the same place without interfering with the content of the page.

JavaScript function in

In this example, we put a JavaScript function in the section of the HTML page.

This function is called when the button is clicked:

Example

FunctionmyFunction ()

{

Document.getElementById ("demo") [xss_clean] = "my first JavaScript function"

}

My Web page

A paragraph

Give it a try

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