eshacker

/* when there is no difference in apply and call */

// 1.

var func = function(arr, barr, carr){
  this.arr = arr;
  console.log(typeof(arr), arr.length, arr, barr, carr);
};

func.call(null, 1, 2, 3); // number undefined 1 2 3

eshacker

var x = 1;

var A = {
  x : 10,
  get: function(){ return this.x; }
};

var a = A.get;
console.log(a()); // 1

eshacker

function Namer(){
  console.log(this instanceof Namer);
}

Namer(); // false
new Namer(); // true
Namer.call(Namer.prototype); // false
Namer.call(new Namer); // true true
Namer.call(Namer); // false
Namer.call(Object.create(Namer.prototype)); // true

eshacker

using System;
class Solution {
    static void Main(String[] args) {
        var numbers = Console.ReadLine().Split(' ');
        var x = int.Parse(numbers[0]);
        var y = int.Parse(numbers[1]);
        
        Console.WriteLine(gcd(x, y));
    }
    static int gcd(int x, int y){

eshacker

console.log("1,2,3,4".split(''))
["1", ",", "2", ",", "3", ",", "4"]

console.log("1,2,3,4".split(','))
["1", "2", "3", "4"]

console.log("1,2,3,4".split())
["1,2,3,4"]

console.log("1 2 3 4".split())

eshacker

function convertPM(time){
    if(time.startsWith('12')){
        return time.replace('PM','');
    }
    return (parseInt(time.split(':'))+12) + time.substring(2, time.length-2);
}

function convertAM(time){
    if(time.startsWith('12')){
        return '00'+time.substring(2, time.length-2);

eshacker

"use strict";

var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; desc = parent = undefined; continue _function; } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };

var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } 

eshacker

"use strict";

var Person = function Person(name, age, sex, friends) {
  var self = this !== undefined ? this : Object.create(Person.prototype);
  self.Name = name;
  self.Age = age;
  self.Sex = sex;
  self.Friends = friends;
  self.SayHelloToMyFriends = function () {
    var _this = this;

eshacker

const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
console.log("arr: ", arr);

let even = arr.filter(x => x%2 === 0);
console.log("evens: ", even);

let odd = arr.filter(x => x%2 === 1);
console.log("odds: ", odd);

let gt5 = arr.filter(x => x > 5);

eshacker

// ES 2015
var DefaultPerson = {
  name : { first: "John", last: "Smith"},
  age: 25,
  city: { hometown: "NY", current: "PA" }
};

var Person = {
  name : { first: "EcmaScript", last: "Hacker"},
  age: 17,