sAVItar02

// JQuery
$(function (){
	$(document).scroll(function(){
		var $nav = $(".nav");
		$nav.toggleClass("scrolled", $(this).scrollTop() > $nav.height()); // in the class "scrolled" set a different background color
	});
});

// Vanilla
window.onscroll = function() {

sAVItar02

/**
 * @param {number[]} nums
 * @param {number} k
 * @return {void} Do not return anything, modify nums in-place instead.
 */
var rotate = function(nums, k) {
    if(k > nums.length) k = k % nums.length;

    reverse(nums, 0, nums.length - 1);
    reverse(nums, 0, k - 1);

sAVItar02

function secondLargest(arr) {
    let largest = Number.MIN_VALUE;
    let secondLargest = Number.MIN_VALUE;

    for (let i = 0; i < arr.length; i++) {
        if (arr[i] > largest) {
            secondLargest = largest;
            largest = arr[i];
        }

sAVItar02

/**
 * @param {number[]} nums
 * @return {number}
 */
var removeDuplicates = function(nums) {
   for(let i=0; i<nums.length - 1; i++) {
    if(nums[i] === nums[i+1]) {
        nums.splice(i+1, 1);
        i--;
    }

sAVItar02

/**
 * @param {number[]} nums
 * @return {number}
 */
var maxSubArray = function(nums) {
    let sum = 0;
    let maxSum = nums[0];
    for(let i = 0; i < nums.length; i++) {
        sum += nums[i];
        if(sum > maxSum) maxSum = sum;

sAVItar02

/**
 * @param {number[]} nums
 * @param {number} target
 * @return {number[]}
 */
var twoSum = function(nums, target) {
    let map = new Map();
    for(let i=0; i<nums.length; i++) {
        let numToFind = target - nums[i];
        if(map.has(numToFind)) return [map.get(numToFind), i];

sAVItar02

/**
 * @param {number[]} height
 * @return {number}
 */
var maxArea = function(height) {
    let l = 0;
    let r = height.length - 1;
    let maxArea = 0;
    let area = 0;

sAVItar02

/**
 * @param {number[]} prices
 * @return {number}
 */
var maxProfit = function(prices) {
    let max = 0;
    let buy = prices[0];

    for(let i=0; i<prices.length; i++) {
        if(prices[i] > buy) max = Math.max(max, prices[i] - buy);

sAVItar02

/**
 * @param {number[]} nums
 * @return {number[]}
 */
var productExceptSelf = function(nums) {
    let prefix = 1;
    let postfix = 1;
    let res = [];
    for(let i=0; i<nums.length; i++) {
        res[i] = prefix;

sAVItar02

/**
 * @param {number[][]} intervals
 * @return {number[][]}
 */
var merge = function(intervals) {
    let temp = [];
    intervals.sort((a, b) => a[0] - b[0])
    for(let i=0; i<intervals.length - 1; i++) {
        if(intervals[i][1] >= intervals[i+1][0]) {
            temp = intervals.splice(i+1, 1);