isEqual for objects in JavaScript

README.md

isEqual for Js objects

Inspired and derived by http://stackoverflow.com/questions/1068834/object-comparison-in-javascript

isEqual.coffee

window.isEqual = (a, b) ->

    for p of a

        return false  if typeof b[p] is 'undefined'

        return false  if b[p] and not a[p]

        t = typeof a[p]
        
        return false  if t is 'object' and not isEqual a[p], b[p]

        return false  if t is 'function' and ( typeof b[p] is 'undefined' or a[p].toString() isnt b[p].toString() )

        return false  if a[p] isnt b[p]

    for p of b
        return false  if typeof a[p] is 'undefined'

    true

isEqual.js

// Generated by CoffeeScript 1.3.3
(function() {

  window.isEqual = function(a, b) {
    var p, t;
    for (p in a) {
      if (typeof b[p] === 'undefined') {
        return false;
      }
      if (b[p] && !a[p]) {
        return false;
      }
      t = typeof a[p];
      if (t === 'object' && !isEqual(a[p], b[p])) {
        return false;
      }
      if (t === 'function' && (typeof b[p] === 'undefined' || a[p].toString() !== b[p].toString())) {
        return false;
      }
      if (a[p] !== b[p]) {
        return false;
      }
    }
    for (p in b) {
      if (typeof a[p] === 'undefined') {
        return false;
      }
    }
    return true;
  };

}).call(this);