3 /*eslint complexity: 0*/
5 module.exports = function equal(a, b) {
6 if (a === b) return true;
8 var arrA = Array.isArray(a)
9 , arrB = Array.isArray(b)
13 if (a.length != b.length) return false;
14 for (i = 0; i < a.length; i++)
15 if (!equal(a[i], b[i])) return false;
19 if (arrA != arrB) return false;
21 if (a && b && typeof a === 'object' && typeof b === 'object') {
22 var keys = Object.keys(a);
23 if (keys.length !== Object.keys(b).length) return false;
25 var dateA = a instanceof Date
26 , dateB = b instanceof Date;
27 if (dateA && dateB) return a.getTime() == b.getTime();
28 if (dateA != dateB) return false;
30 var regexpA = a instanceof RegExp
31 , regexpB = b instanceof RegExp;
32 if (regexpA && regexpB) return a.toString() == b.toString();
33 if (regexpA != regexpB) return false;
35 for (i = 0; i < keys.length; i++)
36 if (!Object.prototype.hasOwnProperty.call(b, keys[i])) return false;
38 for (i = 0; i < keys.length; i++)
39 if(!equal(a[keys[i]], b[keys[i]])) return false;