Comments on: Building simple objects

By: David Peers

David Peers — Sat, 15 May 2010 21:42:22 +0000

This blog helped me somewhat in narrowing down some issues with the latest release candidate, Why do they often leave out vital information when they upgrade? It may be trivial to them but not to me. I’m sure we’re not alone either.

By: adel

adel — Sun, 29 Nov 2009 23:46:31 +0000

Good article

By: Helen

Helen — Fri, 16 Jan 2009 22:04:28 +0000

The only major difference is that the objects created with the constructor maintain a link back to the function that constructed them. This is important when you want to use the javascript language’s more advanced prototype feature to share implementation between the objects created with the same constructor, much like you would with a class in a more traditional language. I’ve got a new article about prototype coming up with some more information about that.

Another difference between your first example and the second example is that the first example has a method called func() while the second doesn’t. The object created will have a link back to it’s constructor function (object.constructor) but the func constructor won’t be available as a func() method on the object.

By: ted devito

ted devito — Fri, 16 Jan 2009 03:42:00 +0000

so, these two methods should produce the same results, except the latter can be reused?

// object literal
var myNewObj = {
func : function (param) {},
str : ”,
arr : [],
obj : {}
}

// function constructor
function func (param) {
this.str = ”;
this.arr = [];
this.obj = {}
}
var myNewObj = new func(param);