completejavascript

  // Smooth scrolling
  $("a[href*='#']:not([href='#'])").click(function () {
    if (location.pathname.replace(/^\//, '') == this.pathname.replace(/^\//, '')
      || location.hostname == this.hostname) {

      var target = $(this.hash);
      target = target.length ? target : $('[name=' + this.hash.slice(1) + ']');

      if (target.length) {
        $('html,body').animate({

completejavascript

function isInViewPort(element){
  let elementTop = $(element).offset().top;
  let elementBottom = elementTop + $(element).outerHeight();
  let viewPortTop = $(window).scrollTop();
  let viewPortBottom = viewPortTop + $(window).height();

  return elementBottom > viewPortTop && elementTop < viewPortBottom;
}

completejavascript

  // Set hash location for url address
  function setHashLocation(id) {  
    var scrollmem = $('html,body').scrollTop();
    window.location.hash = id;
    $('html,body').scrollTop(scrollmem);
  }

completejavascript

1) First fetch all changes:
$ git fetch --all

2) Then reset the master:
$ git reset --hard origin/master

3) Pull/update:
$ git pull

completejavascript

let person = {
  name : 'Bob', 
  sayName : function() {
    setTimeout(function() {
      console.log(`I'm ${this.name}`);
    }, 1000);
  }
};
person.sayName();

completejavascript

let arr = [1, 5, 'a', 3, 'f', '3', 5, 3, 'b', 'e', 'f'];
let ans = deduplicate(arr);

console.log(ans);
// Expected output: [1, 5, "a", 3, "f", "3", "b", "e"]

function deduplicate(arr) {
  let isExist = (arr, x) => {
    for(let i = 0; i < arr.length; i++) {
      if (arr[i] === x) return true;

completejavascript

let a = {
  x: 1,
  getX: function() {
    return this.x;
  }  
};

let b = Object.create(a);
b.x = 10;

completejavascript

Object.prototype.objCustom = function() {}; 
Array.prototype.arrCustom = function() {};

let a = [3, 5, 7];
a.x = 'hello';

Object.defineProperty(a, 'y', {});
Object.defineProperty(a, 'z', {
  enumerable: true
});

completejavascript

let arr = [1, "hi", {x : 2}, [3, 4]];
delete arr[1];
console.log(arr.length);
// What will console print?

completejavascript

let foo = function bar() {
  return "hello";
}

console.log(typeof bar);
// What will console print?
// Ref: Named function expression
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/function