怎么能将循环里输出的值和指定数组的值相同，看代码

//1、怎么能将循环里输出的值和指定数组的值相同
//2、循环完成后,如何删除arr里相同的值

    arr = [1,2,3,4,5,6,7,8,9,10];
    luckyResult = [2,3,5,7];
    function remove(a, b) {
        var contain = id => {
            return !b.filter(d => d.id == id).length
        }
        return a.filter(d => contain(d.id))
    }

    for (let i = 0; i < luckyResult.length; i++) {
        console.log(arr[luckyResult[i]]);
    }


    remove(arr,luckyResult);


    console.log(arr);
    console.log(luckyResult);

是不是这样

    arr = [1,2,3,4,5,6,7,8,9,10];
    luckyResult = [2,3,5,7];
    function remove(a, b) {
       return a.filter(d => b.indexOf(d)<0);
    }

    for (let i = 0; i < luckyResult.length; i++) {
        console.log(luckyResult[i]+"在arr中的索引位置是"+arr.indexOf(luckyResult[i]));
    }

    arr = remove(arr,luckyResult);

    console.log(arr);
    console.log(luckyResult);

你应该是想问数组去重吧？数组去重代码：

var unique = arr => {
    let newArr = [];
    arr.filter(value => {
        if (newArr.indexOf(value) < 0) {
            newArr.push(value)
        }
    })
    return newArr;
}