Function kClosest

javascript/0937-k-closest-points-to-origin.js:8–14

(points, K)

 * @return {number[][]}
 */
var kClosest = function (points, K) {
    const distance = ([x, y]) => x * x + y * y;

    points.sort((a, b) => distance(a) - distance(b));

    return points.slice(0, K);
};

/**
 * https://leetcode.com/problems/k-closest-points-to-origin/