// ******* ECMA Script ********
// Features of ECMAScript 2015 also known as ES6
// LET and CONST
// Template String
// Default Arguments
// Rest Operators
// Destructuring
// Object properties
// Arrow Function
// Spread Operator
// 1. LET VS CONST VS VAR
// let myName = "Himanshu Tiwari";
// console.log(myName);
// myName = "Aditya Tiwari"
// console.log(myName);
// const
// const myName = "Himanshu Kumar";
// console.log(myName);
// myName = "Aditya Tiwari"
// console.log(myName);
// function bioData(){
// let myFirstName = "Himanshu";
// console.log(myFirstName);
// if(true){
// let myLastName = "Tiwari";
// console.log("inner " + myLastName);
// console.log("inner " + myFirstName);
// }
// console.log("innerOuter " + myLastName);
// }
// bioData();
// var => function scope.
// let and const => block scope.
// 2. Template Literals (Template strings)
// JavaScript program to print table for given number(8).
// for(let num = 1; num<=10; num++){
// let tableOf = 8;
// console.log(`${tableOf} * ${num} = ${tableOf * num}`);
// }
// 3. Default parameters
// Default function parameters allow named parameters to be
// initialized with default values if no value or undefined is passed.
// function mult(a,b=5){
// return total = a*b;
// }
4. Destructuring In ES6
// THe destructuring assignment syntax is a javascript expression
// that makes it possible to unpack the values from arrays,
// or properties from objects, into distinct variables.
// ARRAY DESTRUCTURING
// const myBioData = ['himanshu','kumar',19];
// 👎
// let myFName = myBioData[0];
// let myFName = myBioData[1];
// let myFName = myBioData[2];
// console.log(myAge);
// 👍
// let [myFName,myLName,MyAge] = myBioData;
// console.log(myFName);
// OBJECT DESSTRUCTURING
// 👎
// const myBioData = {
// myFName : "Himanshu",
// myLName : "Tiwari",
// myAge : 19,
// }
// let myAge = myBioData.myAge;
// console.log(myAge);
// 👍
// let {myFName,myLName,myAge} = myBioData;
// console.log(myLName);
// 5. Object properties :-
// we can now use dynamic proeprties
// let myName = "HK";
// let myBio = {
// [myName]: "is my name ",
// 26 : "is my age"
// }
// console.log(myBio);
// If key and value both are same then no need to write key and value.
// let myName = "Hk";
// let myAge = 19;
// const myBio = {myName,myAge};
// console.log(myBio);
// console.log(mult(4));
// 6. Fat Arrow Function
// Normal way to writing Function
// function sum(){
// let a = 5;
// let b = 6;
// let sum = a+b;
// return `The sum of two numbers is ${sum}`;
// }
// console.log(sum());
// How to convert into Fat Arrow Function
// const sum = () => {
// let a = 5;
// let b = 6;
// let sum = a+b;
// return `The sum of two numbers is ${sum}`;
// }
// console.log(sum());
// one line solution
// const sum = () => `The sum of two number are ${(a=5)+(b=4)}`
// console.log(sum());
// 7. Spread Operator :-
// const colors = ['red','green','yellow','blue'];
// const myColors = ['red','green','yellow','blue','white','black'];
// const myFavColor = [...colors , 'white','black'];
// console.log(myFavColor);
