Shallowly compare the value equality of an Array.

areArraysEqualShallow.js

function areArraysEqual(a, b) {
    if (!Array.isArray(a) || !Array.isArray(b)) { throw new Error("At least one argument is not an Array."); }

    if (a === b) { return true; }

    if (a.length !== b.length) { return false; }

    for (let i = 0; i < a.length; i++) {
        if (a[i] !== b[i]) {
            return false;
        }
    }

    return true;
}