JQuery $ .proxy vs var self - a generic way to maintain the context of `this`

Question

What is the general way to maintain context this? Which is faster? Which would you prefer?

$. Proxies (...)

$('a').on('click', $.proxy(function() {
    this.close();
}, this));

var self

var self = this;

$('a').on('click', function() {
    self.close();
});

+5

Aley Mar 08 '13 at 13:36

3 answers

Denys seguret · Answer 1 · 2013-03-08T13:38:13+0000

Start by fixing the code. You have a useless function declaration, you can use $.proxyas

$('a').on('click', $.proxy(this.close, this));

Now a second solution based self

This is probably why it is used more.

Please note that if you do not need to be compatible with IE8, you can use bind :

$('a').on('click', this.close.bind(this));

Guffa · Answer 2 · 2013-03-08T13:44:34+0000

Both are common.

. , 0,01 . 0,1 .

, , , , .

, , , . , .

Amrendra · Answer 3 · 2013-03-08T13:41:39+0000

Select First. does not require an additional variable.