摘要：
1·join和split join将数组拼接为字符串 split将字符串转变为数组 结果的元素为字符串，可通过map遍历处理每一项 1 let temp = [1, [2, 3], [4, 5, [6, 7]]]; 2 let res = temp.join(',').split(',') 3 le 阅读全文
摘要：
1·new Set 解构 let res1 = [...new Set(arAr)] 2·new Set Array.from let res2 = Array.from(new Set(arAr)) 3·for循环 splice 1 let fn = (array) => { 2 for (let 阅读全文