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80

How to add my own methods to HTMLElement object?

rated 0 times [ 85] [ 5] / answers: 1 / hits: 25265 / 14 Years ago, wed, january 12, 2011, 12:00:00

For example for this.parentNode I would like to just write this.p or instead of
document.getElementById('someid') just write document.g('someid'). Of course that are simple examples, I just want to know what is the correct way to do it.

(I know I can use jQuery or Prototype, but I'd like to learn how it is really done in JS)

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dominics

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answered 14 Years ago rylee · Accepted Answer

Although you can prototype on the HTMLElement in many browsers - Internet Explorer (6,7,8) is NOT one of them. AFAIK, IE9 does support this (though I haven't tested it).

For browsers that do handle it, you can do:

HTMLElement.prototype.doHello = function(thing){

  console.log(this + ' says: ' + thing)

}



document.body.doHello('hello')