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How to return a window object with the value of this in JavaScript

2025-01-16 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

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Today, I would like to share with you how to return the relevant knowledge points of window object by the value of this in JavaScript. 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.

JavaScript Global object this keyword

This keywords:

In JavaScript, something called this refers to an object that "owns" the current code.

The value of this, when used in a function, is the object that "owns" the function.

Note that this is not a variable. It belongs to key words. You cannot change the value of this.

Global objects:

When the object is called without the owner object, the value of the this becomes the global object.

In web browsers, a global object is a browser object.

This example returns the window object with the value of this:

Example

Var x = myFunction (); / / x will become a window object

Function myFunction () {

Return this

}

Calling a function as a global function causes the value of this to become a global object.

Using the window object as a variable can easily crash the program.

These are all the contents of the article "how to return window objects with the value of this in JavaScript". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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