Function rightSideView

javascript/0199-binary-tree-right-side-view.js:7–12

(root)

 * @return {number[]}
 */
var rightSideView = function (root) {
    const isBaseCase = root === null;
    if (isBaseCase) return [];

    return bfs([root]);
};

const bfs = (queue, rightSide = []) => {
    while (queue.length) {