what is the usage of jQuery.extends

[amskape]

Hi pals,
I am in a straight forward doubt. I use jQuery for a long time , but not use jQuery extends method, do any one can
explain it's purpose and need . I don't get not much from reading jQuery Manual. So if you have a Good idea reply me with a Good explanation and example....I can understand
user can create their own custom functions, pls explain ...

Thankfully
Anes P.A

[Dormilich]

I found the examples quite straightforward. you take in 2+ objects and get back 1 merged object. (it does not seem to have anything to do with inheritance)

[amskape]

Hi Dormilich, I got some idea about jQuery.extends , thanks for your help , pls verify my idea as I know depicted below:
$.extend(target,objects...) --->Extends the target
object with one or more specified objects.Returns the
original,unmodified object.

It's used mainly in creating plugins. For example,
in a plugin function there need some default
objects, some time we need to pass our own
preference(objects), in that time we need
to extend the deafault object with our own

eg:

(function($) {
  $.fn.say = function(options) {
    var ops = {
      'word' : 'Hello'
    };
    return this.each(function() {
      if (options) {
        // here I merge the users inputted 'options' object
        // with my 'ops' object.
        $.extend(ops, options);
      }
      $(this).html(ops.word);
    });
  };
})(jQuery);

and call this as :

$(document).ready(function() {
  $('div').say();
});

Would make all div's within a document contain the html 'Hello'.
Now, using $.extend() we can override the word hello with 'goodbye'.

$(document).ready(function() {
  $('div').say({word: 'Goodbye'});
});

Am I right Dormilich, If my understanding has any
problem advise me

Regards
Anes P.A

[Dormilich]

I’m not much of a jQuery user …