摘要: ```Array.prototype.customMap = function (fn) { let newArr = []; for (let i = 0, l = this.length; i 0) { t = this[i]; this[i] = this[j]; this[j] = t; } } }}Array.protot... 阅读全文
posted @ 2020-05-06 17:51 哥哦狗子 阅读(213) 评论(0) 推荐(0) 编辑