JavaScript decorators HOWTO?

Question

I need to decorate a 3rd party function that I can't modify so I will need to decorate it in any way. I found that in Prototype there is something to do it easily [1].

Is there any alternative to that in jQuery or in plain JavaScript?

[1] http://api.prototypejs.org/language/Function/prototype/wrap/

Answer 1

What about your scenario requires a library? It seems that with native javascript, you could simply:

• Save a copy of the original function
• Create a modified version of the function which uses the original
• Store a reference to the modified version where the original was originally stored.