如何使用jQuery发出事件？

Question

i'm trying to create a simple class to emit an event in certain moment. I get this javascript error : this.emit is not a function

This is the code:

var class_test = function(){};
class_test.prototype = {
   some_property: null,

    doSomething: function(msg) {
            this.some_property = msg;
            this.emit("somethingHappened");
        }
};


var test = new class_test();
test.doSomething('Example');

test.addEventListener('somethingHappened',function(){
    alert("Event");
},false);

Any suggestion?,Thanks!

Answer 1

with jQuery ,since you requested it :

var class_test = function(){
   this.dispatcher = $({});
};
class_test.prototype = {
   some_property: null,

    doSomething: function(msg) {
            this.some_property = msg;
            this.dispatcher.trigger("somethingHappened");
        }
};


var test = new class_test();


test.dispatcher.on('somethingHappened',function(){
    alert("Event");
});

test.doSomething('Example');