Does jQuery or JavaScript have the concept of classes and objects?

Question

I found the following code somewhere, but I am not understanding the code properly.

ArticleVote.submitVote(\'no\');return false;

Is Arti

Answer 1

Certainly JS has objects and classes, but it's not exactly a conventional approach.

It's rather a broad question, but there's three main things you want to know about objects and classes in JS:

1). Everything is an object - this famously includes JS's first class functions

2). There are object literals

var myObject = { "foo": 123, "bar": [4,5,6] };

3). Inheritance is prototype based, so creating classes is more a matter of form than function. To get the effect of a class you'd write something like:

function myClass(foo)
{
  this.foo = foo;
}
myClass.prototype.myFooMethod = function() {alert(this.foo);}

var myInstance = new myClass(123);

myinstance.myFooMethod(); // alerts 123

For your example it's likely that ArticleVote is an object instance and probably not conceptually a class, and submitVote would be a method of the object. can't tell for sure though, it could be what you'd call a static method in another language.