javascript - 比较两个数组并在相同值索引处更改数据

Question

我有一个像这样的数组:

    array1 = ["Jan","Feb",....,"Dec"];
    array2 = ["Jan","Sep"];

现在比较 和 ，array1[0] 和 array1[8] 值更改为 0。

我想要输出:

    array1 = [0, "Feb", "March", ..., 0, "Oct", ..., "Dec"]

Answer 1

不确定我是否理解正确，但假设您想将 array1 值更改为 0，如果它们包含在 array2 中，您可以这样做:

array1 = ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];
array2 = ["Jan","Sep"];

for (let i = 0; i < array1.length; i++) {
    if (array2.includes(array1[i])) {
        array1[i] = 0;
    }
}

console.log(array1);