数组删除指定下标元素

数组删除指定下标元素

数组slice方法

arr.slice(start,dellength);

start代表开始删除的下标，dellength代表删除数组的下标长度

var arr = [1,2,3,4,5];arr.slice(0,1);// arr = [2,3,4,5];

删除数组多个指定下标

let arr = [1,2,3,4,5,6,7]let delInd = [1, 5]if (delInd .length > 0) {for (let i = delInd.length - 1; i >= 0; i--) {arr.splice(delInd [i], 1)}}//arr = [1,3,4,5,6];