摘要: var arr = [1, 2, 1, 1, 2, 3, 4, 2, 1, 3, 2, 5, 5, 3]; // console.log([...new Set(arr)]); // 2 定义数组 // var result = []; // demo: for (var i = 0; i < ar 阅读全文
posted @ 2022-04-03 17:40 HaoyuSun 阅读(72) 评论(0) 推荐(0)
摘要: // 手写promise function newPromise(callback) { this.state = 'pending'; this.successArray = []; this.failArray = []; // this.res // 成功时候的回调函数 let resolve 阅读全文
posted @ 2022-04-03 16:46 HaoyuSun 阅读(31) 评论(0) 推荐(0)