Sort one array the same way as another array JavaScript

Question

I have 2 arrays:

[2, 4, -2, 4, 1, 3]
[\"a\", \"b\", \"c\", \"d\", \"e\", \"f\"]

and I want them to be sorted by the numerical array:

<

Answer 1

A standard method is to take the indices of the key array for sorting and sort the indices as pattern for all other arrays by taking the index and the value from the key array.

At the end map the sorted arrays.

var array1 = [2, 4, -2, 4, 1, 3],
    array2 = ["a", "b", "c", "d", "e", "f"],
    indices = [...array1.keys()].sort((a, b) => array1[a] - array1[b]);

[array1, array2] = [array1, array2].map(a => indices.map(i => a[i]));

console.log(...array1);
console.log(...array2);