Created
February 19, 2016 00:24
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| var assert = require('assert') | |
| function deepEqual(obj1, obj2){ | |
| var keys1 = Object.keys(obj1) | |
| var keys2 = Object.keys(obj2) | |
| if(keys1.length !== keys2.length) return false | |
| for(var key in obj1){ | |
| if(!obj2.hasOwnProperty(key)) return false | |
| else if(typeof obj1[key] !== 'object' && typeof obj2[key] !== 'object'){ | |
| if(obj1[key] !== obj2[key]) return false | |
| } | |
| else if(typeof obj1[key] === 'object' && typeof obj2[key] === 'object'){ | |
| if(getType(obj1[key]) !== getType(obj2[key])) return false | |
| switch(getType(obj1[key])){ | |
| // case '[object Array]': | |
| // if(obj1[key].length !== obj2[key].length) return false | |
| // for(var i = 0; i < obj1[key].length; i++){ | |
| // if(obj1[key][i] !== obj2[key][i]) return false | |
| // } | |
| // break | |
| case '[object Object]': | |
| if(!deepEqual(obj1[key], obj2[key])) return false | |
| break | |
| // case '[object Function]': | |
| // //??? | |
| // break | |
| //...many more | |
| } | |
| } | |
| else return false | |
| } | |
| return true | |
| } | |
| function getType(obj){ | |
| return Object.prototype.toString.call(obj) | |
| } | |
| var a = {1: {2: 3}, 4: 5} | |
| var b = {1: {2: 3}, 4: 5} | |
| var c = {1: {2: {3: 4}}} | |
| var d = {1: {2: {3: 4}}} | |
| assert.equal(deepEqual(a, b), true) | |
| assert.equal(deepEqual(a, c), false) | |
| assert.equal(deepEqual(c, d), true) | |
| console.log(a === b) | |
| console.log(a == b) |
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