When to use the prototype of a Function - JavaScript Snipplr Social Repository

Revision: 14466

at June 4, 2009 17:19 by segdeha

Updated Code

// consider:
function Grape(type) {
  this.type = type || 'Xynomavro';
}

Grape.prototype.squash = function () {
  return this.type.substring(0, 3);
};

var grape = new Grape();

alert(grape.squash());

// versus:
var grapes = {
  barrel : [],
  squash : function (grape) {
    return grape.substring(0, 3);
  }
};

grapes.barrel.push('Nebbiolo');

alert(grapes.squash(grapes.barrel[0]));

Revision: 14465

at June 4, 2009 17:13 by segdeha

Initial Code

// consider:
function Grape(type) {
  this.type = type || 'Xynomavro';
}

Grape.prototype.squash = function () {
  return this.type.substring(0, 1);
};

var grape = new Grape();

alert(grape.squash());

// versus:
var grapes = {
  barrel : [],
  squash : function (grape) {
    return grape.substring(0, 1);
  }
};

grapes.barrel.push('Nebbiolo');

alert(grapes.squash(grapes.barrel[0]));

Initial URL

Initial Description

Assign methods to a Function prototype when you intend to create instances of the type of object. Use object literals when you just need a container for functions.

Initial Title

When to use the prototype of a Function

Initial Tags

javascript, function

Initial Language

JavaScript

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