现有一数组
var arr=new array{"gameid":[111,222],"gametime":[3333,4444],"gamescore":[555,666]};
我不知道这样对不对,大约是长这样子,细节就别计较了
现在我要移除 gametime 这个元素,让整个数组变成
{"gameid":[111,222],"gamescore":[555,666]}; 这样
我现在用 arr[key].length=0
但得到的结果是 gametime 还在 只是他的子层没了数据
求解
Javascript 和 PHP不一样, 数组都是对象;
所以
var arr=new array{"gameid":[111,222],"gametime":[3333,4444],"gamescore":[555,666]};
应该写为
var arr={"gameid":[111,222],"gametime":[3333,4444],"gamescore":[555,666]};//或者下面的写法
var arr=new Object({"gameid":[111,222],"gametime":[3333,4444],"gamescore":[555,666]});
new 好之后 就可以 用
delete arr.gametime;
或
delete arr["gametime"]
来删除了
首先,你这么写不是数组哦,是对象吧?
隐约看到php
的影子。
先纠正一下写法:
var arr={"gameid":[111,222],"gametime":[3333,4444],"gamescore":[555,666]};
然后
delete arr['gametime'];
然后你再去看arr
.
delete arr['gametime'];