Backbone.js View can't unbind events properly

Question

I have some Backbone.js code that bind a click event to a button, and I want to unbind it after clicked, the code sample as below:

var AppView = Backbone.Vie         


        

Answer 1

You could solve this another way

var AppView = Backbone.View.extend({
    el:$("#app-view"),
    initialize:function(){
        _.bindAll(this,"cancel");
    },

    events:{
        "click .button":"do"
    },

    do:_.once(function(){
        console.log("do something...");
    })
});
var view = new AppView();

underscore.js once function ensures that the wrapped function can only be called once.