A brief discussion on the this calling object of JS

The content of this article is about a brief discussion of the this calling object of JS. It has a certain reference value. Now I share it with you. Friends in need can refer to it

Check From the information, I learned that this of JS points to the object of the call.

It’s hard to understand only this sentence, so let’s write a dome.

The code is as follows:

      
  
开始
 
点击测试
  

You can see four output problems from top to bottom

Run and see the results:

You can see that the output results of 123 are different

The first one is HTMLDOM

The second one is a p

The third one is a window

The above code can be analyzed as follows:

(PS: this refers to the previous one in the official introduction level object, typo)

Related recommendations:

Detailed explanation of this object in JS

this refers to the current object itself

Why can’t this be used in static methods in Java? , super and direct call to non-static methods

Are this and super references or objects?

The above is the detailed content of A brief discussion on the this calling object of JS. For more information, please follow other related articles on the PHP Chinese website!