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In this article, the editor introduces "how to use this alone" in detail, the content is detailed, the steps are clear, and the details are handled properly. I hope this "how to use this alone" article can help you solve your doubts.

This in the method

In object methods, this points to the object that calls its method.

The object to which the fullName method belongs is person.

Case study

FullName: function () {

Return this.firstName + "" + this.lastName

}

Using this alone

Using this alone, it points to a global (Global) object.

In the browser, window means that the global object is [object Window]:

Case study

Var x = this

In strict mode, this also points to a Global object if used alone.

Case study

"use strict"

Var x = this

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