SetTimeout in javascript _ javascript skills

This article mainly introduces the setTimeout problem in javascript and the corresponding solution. If you need it, you can see a problem, which is probably like this.

The Code is as follows:

Name = 'out of you'
Foo = function (){
This. name = 'xxoo ';
}
Foo. prototype. say = function (){
Console. log (this. name );
}
F = new foo ();
F. say (); // This sentence will output xxoo
SetTimeout (f. say, 500); // This sentence will output out of you

This is a pitfall. this is generated when javascript is called and related to context. To solve this problem. I tested it and used call.

The Code is as follows:

SetTimeout. call (foo (), f. say, 500)

Some solutions on the Internet

This point of setTimeout in js

Use Timer in JavaScript

Finally, I have to understand this.

I can understand it some day and continue writing.