How to understand the JavaScript event

How to understand the JavaScript incident? I believe many inexperienced people are at a loss about it. Therefore, this article summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

JavaScript event

The HTML event is what happens on the HTML element.

When using JavaScript in a HTML page, JavaScript can trigger these events.

HTML event

The HTML event can be a browser behavior or a user behavior.

The following is an example of the HTML event:

The HTML page finishes loading

When the HTMLinput field is changed

The HTML button is clicked

Usually, when something happens, you can do something.

JavaScript can execute some code when the event is triggered.

You can add event attributes to the HTML element, and use JavaScript code to add the HTML element.

Single quotation marks:

Double quotation marks:

In the following example, the onclick attribute (plus code) is added to the button element:

Example

What's the time now?

In the above example, the JavaScript code modifies the contents of the id= "demo" element.

In the next example, the code will modify the contents of its own element (using this [XSS _ clean]):

Example

What's the time now?

JavaScript code is usually a few lines of code. It is more common to call through the event property:

Example

What's the time now?

What is JavaScript JS is the abbreviation of JavaScript, it is a literal scripting language, its interpreter is called JavaScript engine, is a part of the browser, mainly used for web development, can add a variety of dynamic effects to the website, make the web page more beautiful.

After reading the above, have you mastered how to understand the JavaScript event? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!