Function kClosest

javascript/0973-k-closest-points-to-origin.js:12–18

(points, k)

 * @return {number[][]}
 */
var kClosest = function (points, k) {
    // Sort the array with a custom lambda comparator function
    points.sort((a, b) => squaredDistance(a) - squaredDistance(b));

    // Return the first k elements of the sorted array
    return points.slice(0, k);
};

// Calculate and return the squared Euclidean distance
const squaredDistance = ([x, y]) => x ** 2 + y ** 2;