Calling class methods within jQuery function

Question

So I have some javascript class and in one method I use jQuery to bind function to click event. And within this function I need to call other methods of this class. In usual js function I did it through "this.method_name()", but here, I guess, jQuery redefines "this" pointer.

Answer 1

jQuery doesn't redefine the this pointer, but that's how JavaScript functions work in general. Store a reference to the this pointer under a different name, and use that.

var self = this;
$("selector").click(function() {
    self.method_name();
});

See this answer for more approaches.

Answer 2

There are a few different ways to do this.

Anurag has a perfect example of one.

Two other ways are the jQuery Proxy class (Mentioned in other answers) and the 'apply' function

Now lets create an object with click events:

var MyObj = function(){

this.property1 = "StringProp";

// jQuery Proxy Function
$(".selector").click($.proxy(function(){

  //Will alert "StringProp"
  alert(this.property1);
// set the 'this' object in the function to the MyObj instance


},this));


//Apply Function
//args are optional
this.clickFunction = function(arg1){
    alert(this.property1);
};

$(".selector").click(this.clickFunction.apply(this,"this is optional"));


};