SetTimeout problem Solving method in JavaScript _javascript skills

See a problem, probably like this.

Copy Code code as follows:

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

This is a pit, JavaScript's this is generated at the time of the call, but also related to the context. So solve it. I tested it and used call.

Copy Code code as follows:

Settimeout.call (foo (), F.say, 500)

Some solutions on the Internet

This point problem in settimeout in JS

Use timer in JavaScript

In the end, we have to understand the question.

One day we'll get to the point.