Different types of creating functions for javascript

Question

What is the difference between this:

function Hero(options) {
  options = options || {}
  this.nickname = options.nickname || 'Default 1';
  this.hp = options.hp || '50'
}

Hero.prototype.walk = function() {
  console.log('Hero walked');
}

And this:

function Hero(options) {
  options = options || {}
  this.nickname = options.nickname || 'Default 1';
  this.hp = options.hp || '50'

  this.walk = function() {
    console.log('Hero walked')
  }
}

Are there any significative gains in using prototype?

Yes, the `walk` method is only created once and shared by all `Hero` instances — Ian, Aug 12 '13 at 14:24
@SLaks How so? I think I just saw an edit, but not sure what changed — Ian, Aug 12 '13 at 14:25
Oh, there is a similar question. Nevermind to answer then! =] — MurifoX, Aug 12 '13 at 14:26

score 0 · Answer 1 · answered Aug 12 '13 at 14:24

0

Methods defined with Hero.prototype.myMethod = function() {} will also be be accessible by objects that are children of Hero.

answered Aug 12 '13 at 14:24

m_vdbeek

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Different types of creating functions for javascript

1 Answers1