Phongtlam

const adjustPaddings = isScrollDown => {
	const container = document.querySelector(".cat-list");
	const currentPaddingTop = getNumFromStyle(container.style.paddingTop);
	const currentPaddingBottom = getNumFromStyle(container.style.paddingBottom);
	const remPaddingsVal = 170 * (listSize / 2);
	if (isScrollDown) {
		container.style.paddingTop = currentPaddingTop + remPaddingsVal + "px";
		container.style.paddingBottom = currentPaddingBottom === 0 ? "0px" : currentPaddingBottom - remPaddingsVal + "px";
	} else {
		container.style.paddingBottom = currentPaddingBottom + remPaddingsVal + "px";

Phongtlam

const recycleDOM = firstIndex => {
	for (let i = 0; i < listSize; i++) {
		const tile = document.querySelector("#cat-tile-" + i);
		tile.firstElementChild.innerText = DB[i + firstIndex].title;
		tile.lastChild.setAttribute("src", DB[i + firstIndex].imgSrc);
  }
}

Phongtlam

const initIntersectionObserver = () => {
  const options = {
  	/* root: document.querySelector(".cat-list") */
  }

  const callback = entries => {
    entries.forEach(entry => {
      if (entry.target.id === 'cat-tile-0') {
        topSentCallback(entry);
      } else if (entry.target.id === `cat-tile-${listSize - 1}`) {

Phongtlam

/* jshint esversion: 6 */

// Solve the following prompts using recursion.

// 1. Calculate the factorial of a number. The factorial of a non-negative integer n,
// denoted by n!, is the product of all positive integers less than or equal to n.
// Example: 5! = 5 x 4 x 3 x 2 x 1 = 120
// factorial(5); // 120
var factorial = function(n) {
  if (n < 0) return null;

Phongtlam

// ['w','h','a','t',' ','o','n',' ','e','a','r','t','h',' ','a','r','e',' ','y','o','u',' ','t','a','l','k','i','n','g',' ','a','b','o','u','t','?']


function isVowel(x) {
  var result;
  result = x === "a" || x === "e" || x === "i" || x === "o" || x === "u";
  return result;
}

function doubleV(array) {

Phongtlam

var CashAmount = function(val) {
  val = val.toFixed(2)
  this.value = val;
}

CashAmount.prototype.totalInPennies = function() {
  var array = this.value.split('.');
  var first =  array[0] + '00';
  return parseInt(first) + parseInt(array[1]);
}

Phongtlam

var path = require('path');

module.exports = {

    entry: path.resolve(__dirname, 'src') + '/app/index.js',
    output: {
        path: path.resolve(__dirname, 'dist') + '/app',
        filename: 'bundle.js',
        publicPath: '/app/'
    },

Phongtlam

var path = require('path');

module.exports = {

    entry: path.resolve(__dirname, 'src') + '/app/index.js',
    output: {
        path: path.resolve(__dirname, 'dist') + '/app',
        filename: 'bundle.js',
        publicPath: '/app/'
    },

Phongtlam

/**
 * @param {number} numRows
 * @return {number[][]}
 */
var generate = function(numRows) {
    if (numRows === 0) {
        return [];
    }
    if (numRows === 1) {
        return [[1]];

Phongtlam

/**
 * @param {number} numRows
 * @return {number[][]}
 */
var generate = function(numRows) {
    var result = [];
        result[0] = [1];
        result[1] = [1,1];
    for (var row = 2; row < n; row++){
        result[row] = [1];