angular - 无法从 typescript 中的数组中删除元素

Question

我有一个字符串数组

我想做的是在 oneArr 和 twoArr 中找到 dataArr 的匹配元素并删除它。

这是我试过但不起作用的代码:

dataArr = ["1","3","9"];
oneArr  = ["1","2","5"];
twoArr  = ["4","9"];

 updateData(dataArr){
 for (let index = 0; index < dataArr.length; index++) {

            let orgIndx = oneArr.findIndex(dataArr[index]);
            oneArr.splice(orgIndx,1);

            let orgIndx1 = twoArr.findIndex(dataArr[index]);
            twoArr.splice(orgIndx1,1);

}
console.log("oneArr = "+oneArr);
console.log("twoArr = "+twoArr);

我哪里弄错了请帮忙

Answer 1

使用filter如下

var dataArr = ["1","3","9"];
var oneArr  = ["1","2","5"];
var twoArr  = ["4","9"];

oneArr = oneArr.filter( e => dataArr.indexOf(e) == -1);
twoArr = twoArr.filter( e => dataArr.indexOf(e) == -1);

console.log("oneArr = "+oneArr);
console.log("twoArr = "+twoArr);