Proxy of JQuery implements proxy binding and jqueryproxy binding

Proxy of JQuery implements proxy binding and jqueryproxy binding

In javascript, the object referred to by this often changes, which may cause program confusion. The general practice is to save this in a variable first, so we are not afraid of her changes. Let's look at a small example first.

Var A = function () {this. star = functiont () {}; this. beg = function () {var that = this; $ node. click (function () {// this. start (); // here this refers to $ node object that. start ();});};}

JQuery provides the proxy method, which can bind a proxy to an object. this has changed. I am not afraid of it. that is, when this happens, I am not afraid of it. When proxy appears to you, the object changes, i'm not afraid ......

$ Node. on ('click', $. proxy (function () {this. start () ;}, this)