一、demo
splice: 该方法会改变自动原始数组长度
实例:
var array = ["aa","dd","cc","aa"]; //方法2:删除数组元素 array.splice(1,1); //输出结果:["aa","cc","aa"] getArray(array);
输出:aa
cc
aa
数组长度自动减一
二、实际业务场景中
在for循环中使y用 temp.splice(i, 1);
一定要记得跟着写i--
detect() {
let temp = [];
temp = this.tableBase;
let userName = this.search;
let count = 0;
for (let i = 0; i < temp.length; i++) {
if (!(temp[i].userName === userName)) {
console.log(temp[i].userName);
temp.splice(i, 1); //这种删除方式会自动更新长度,慎用
i--;
//delete temp[i];
count++;
console.log("删除");
}
}
console.log(count);
this.tableBase = temp;
console.log(this.tableBase);
},
原文地址:https://www.cnblogs.com/yanl55555/p/11997617.html
时间: 2024-10-26 00:46:08