big time problem understanding object

[javascriptnewbie]

alright now that i’ve understood how to make objects..

book = new Object();
variableName.color=”green”;
variableName.size=”10″;

What’s the point..
What to do with them?

I know i can use it to print variableName.color value onscreen, but what else….

also what are methods and what’s the use of them?

big thanks to everyone !

[__]

What’s the point.. What to do with them?

They’re particularly useful for grouping/scoping your code. But really, you might as well ask “what to do?” — objects are suitable for lots of things in javascript; it’s a pretty open-ended question.

also what are methods and what’s the use of them?

methods are functions that belong to an object.

var book = {};
book.color = "green";
book.size = 10;
book.describe = function(){
    var description = "This book is " +  this.color +
        " and is " + this.size + " pages long.";
    return description;
}

[Alen]

Objects have properties and methods.

Properties are just values. And methods are just functions that do something with the values.

As you can see in this example:

obj = {
  firstName: "Alen",
  lastName: "Mofo",
  fullName: function(){
    alert(this.firstName + " " + this.lastName);
  }
}
obj.fullName(); //Prints "Alen Mofo"

firstName and lastName is a property. fullName is a method.

[Alen]

Here’s a good read. http://eloquentjavascript.net/contents.html

[Author]

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