sachinKumarGautam

const obj = {
  dev: 'bfe',
  a: function() {
    return this.dev
  },
  b() {
    return this.dev
  },
  c: () => {
    return this.dev

sachinKumarGautam

// Type JavaScript here and click "Run Code" or press Ctrl + s
console.log('Hello, world!');

// CHALLENGE 1

function sumFunc(arr) {
  // YOUR CODE HERE
  let accumulator = 0;
	for (let i = 0; i < arr.length; i++) {
    accumulator += arr[i];

sachinKumarGautam

https://stackoverflow.com/questions/37601282/javascript-array-splice-vs-slice/54114834#54114834

sachinKumarGautam

useEffect(() => {
    /**
     * trapping next router before-pop-state to manipulate router change
     * on browser back button quick filter modal should be closed
     */
    router.beforePopState(() => {
      if (isOpen) {
        /**
         * only applicable if modal is open.
         */

sachinKumarGautam

// debounce

function debounce(func, wait, immediate) {
    var timeout;
    return function() {
        var context = this, args = arguments;
        var later = function() {
            timeout = null;
            if (!immediate) func.apply(context, args);
        };

sachinKumarGautam

// EXAMINE THE DOCUMENT OBJECT //

// console.dir(document);
// console.log(document.domain);
// console.log(document.URL);
// console.log(document.title);
// //document.title =  123;
// console.log(document.doctype);
// console.log(document.head);
// console.log(document.body);

sachinKumarGautam

function waitForever() {
  return new Promise(r => {});
}

// Usage:
await waitForever();

sachinKumarGautam

const express = require('express')
const next = require('next')
const cookieParser = require('cookie-parser')

const dev = process.env.NODE_ENV !== 'production'
const app = next({ dev })
const handle = app.getRequestHandler()
const url = require('url')
const path = require('path')
const expressApp = express()

sachinKumarGautam

class SomeComponent extends React.PureComponent {

  // Each instance of SomeComponent has a cache of click handlers
  // that are unique to it.
  clickHandlers = {};

  // Generate and/or return a click handler,
  // given a unique identifier.
  getClickHandler(key) {

sachinKumarGautam

div {
  opacity: 0;
  animation: fadeIn 1s 0.5s forwards
}

@keyframes fadeIn {
  100% {
    opcaity: 1
  }
}