比較兩個數組並以相同的值索引更改數據

Question

我有一個像這樣的數組：

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

現在比較兩者，並將array1[0]和array1[8]值更改為0 。

我想要輸出：

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

Answer 1

不知道我是否理解正確，但是假設您想將array1的值更改為0（如果它們包含在array2中），則可以執行以下操作：

 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);