| 'use strict'; |
| |
| module.exports = function equal(a, b) { |
| if (a === b) return true; |
| |
| var arrA = Array.isArray(a) |
| , arrB = Array.isArray(b) |
| , i; |
| |
| if (arrA && arrB) { |
| if (a.length != b.length) return false; |
| for (i = 0; i < a.length; i++) |
| if (!equal(a[i], b[i])) return false; |
| return true; |
| } |
| |
| if (arrA != arrB) return false; |
| |
| if (a && b && typeof a === 'object' && typeof b === 'object') { |
| var keys = Object.keys(a); |
| if (keys.length !== Object.keys(b).length) return false; |
| |
| var dateA = a instanceof Date |
| , dateB = b instanceof Date; |
| if (dateA && dateB) return a.getTime() == b.getTime(); |
| if (dateA != dateB) return false; |
| |
| var regexpA = a instanceof RegExp |
| , regexpB = b instanceof RegExp; |
| if (regexpA && regexpB) return a.toString() == b.toString(); |
| if (regexpA != regexpB) return false; |
| |
| for (i = 0; i < keys.length; i++) |
| if (!Object.prototype.hasOwnProperty.call(b, keys[i])) return false; |
| |
| for (i = 0; i < keys.length; i++) |
| if(!equal(a[keys[i]], b[keys[i]])) return false; |
| |
| return true; |
| } |
| |
| return false; |
| }; |