javascript - access class members from nested functions

Question

hi,
i have this class in javascript

var MyGird = Class.extend({
  classMemeber1 : "Some Value"
  ,clickEvent : function(){
        this.editor.on({
            afteredit: function() {
                //
                //  HOW TO I ACCESS classMemeber1 from here? ?
                //
                //
            }
        })
})

how do i access classMemeber1 from inside of afteredit...
Thanks

Answer 1

You need to save a reference to the object invoking clickEvent function by storing this ^[1] in a variable. It will be available inside the afteredit method because of closure.

var MyGird = Class.extend({
    classMemeber1: "Some Value",
    clickEvent: function () {
        var self = this; // save object reference
        this.editor.on({
            afteredit: function () {
                // access classMemeber1 from here
                // by using the stored reference
                alert(self.classMemeber1);
            }
        });
    },
    // ...
});

^{[1] http://stackoverflow.com/questions/3320677/this-operator-in-javascript/3320706#3320706 (note: 'this' is not an operator)}