Function quickSelect

javascript/0937-k-closest-points-to-origin.js:31–42

(points, target, left, right)

};

const quickSelect = (points, target, left, right) => {
    const mid = getMid(points, left, right);

    const isTarget = mid === target - 1;
    if (isTarget) return;

    const isTargetGreater = mid < target - 1;
    if (isTargetGreater) quickSelect(points, target, mid + 1, right);

    const isTargetLess = target - 1 < mid;
    if (isTargetLess) quickSelect(points, target, left, mid - 1);
};

const swap = (points, left, right) =>
    ([points[left], points[right]] = [points[right], points[left]]);