JavaScript flexibility

In JS you have the natural flexibility to extend an object you have previously declared. Even more you can extend any native objects! That makes the writing of a jQuery, or whatever javascript library, plugins to be very easy.

As you may know in JS you can have object declared like that:

var obj = { a : 1, b : 2 };

That is an object with two properties a and b which values are respectively 1 and 2. If you’d like to extend this object later you can just write:

obj.c = 3

and now the object looks like that:

{ a : 1, b : 2, c : 3 }

That’s perfect when you’d like to write plugins to jQuery. Continue reading Writing a jQuery plugin – (part 1). Good practices! →