如何在forEach循环中获取值的索引？

Question

绝对是NewBee

我如何在forEach循环中找到值的索引而不是值本身目前我有以下代码，它只给出了userAnswers的值：

    correctAnswers: [], // [1, 2, 3, 1, 2, 1, 3, 3, 4, 3]
    userAnswers: [],    // [1, 2, 1, 1, 2, 1, 3, 3, 4, 3]

    let tempArr = [];
    const findingTotal = userAnswers.forEach(
        (value, index) =>
            value === correctAnswers[index]
                ? (Total += 1)
                : tempArr.push(value)
    );

在上面的例子中，我想获得2的索引，而不是值（1）本身？

Answer 1

correctAnswers: [], // [1, 2, 3, 1, 2, 1, 3, 3, 4, 3]
userAnswers: [],    // [1, 2, 1, 1, 2, 1, 3, 3, 4, 3]

let tempArr = [];
let Total = 0; 
userAnswers.forEach(
    (value, index) =>
        value === correctAnswers[index]
            ? (Total += 1)
            : tempArr.push(index)
);

tempArr.push（index），findTotal也没用过