jQuery.proxy() usage

Question

I was reading the api about jQuery.proxy(). It looks promising but I was wondering in what situation is this best use. Can anyone enlighten me?

Answer 1

For example if you want to create callbacks. Instead of:

var that = this;

$('button').click(function() {
    that.someMethod();
});

you can do:

$('button').click($.proxy(this.someMethod, this));

Or if you create a plugin that accepts callbacks and you have to set a specific context for the callback.