JS

try_ES6.js

/* LET: scope vars */
let foo = "bar";
console.log(foo);
if(foo.includes("bar")){
  let inc = true;
}
console.log(inc);

/*CONST: constants vars */
const PI = 3.14;
console.log(PI);
const PI = 3.11; //ERR
console.log(PI);
//- when try let or var dont work
let PI = 123;
console.log(PI);
var PI = 123;
console.log(PI);

/* Template String: Define string with mult lines */
console.log("dont 
work");
console.log(`YEAAAAAH,  
work`);

/* Template String (INTERPOLATION): string-mult-line with VARS/LETS etc.. */
console.log(`YEAAAAAH,  
work`);
let foo = "bar";
console.log(`FOOOO!,
  ${bar}
`);

/* Repeat method on String */
console.log(`${NaN.toString().repeat(10)} Batman!!!`);

/* Contains (DEPRECATED) -> Includes ~YEAH~ */
console.log(`${NaN.toString().repeat(1).includes("NaN")}`);
console.log(`${NaN.toString().repeat(1).includes("naN")}`); //CASE-SENSITIVE

/* IncludesORstartsWith */
console.log(`${NaN.toString().repeat(1).startsWith("NaN")}`);
console.log(`${NaN.toString().repeat(1).startsWith("naN")}`); //CASE-SENSITIVE

/* News NUMBER/MATH functions */
//- Soon
//- BUT ~see~ http://www.2ality.com/2015/04/numbers-math-es6.html

/* ARROY => FUNCTIONS */
var plus = param => param + 1; //single PARAM
console.log(plus(1));

var sum = (n1, n2) => n1+n2;
console.log(sum(1,1)); //N PARAMS

var hw = () => "Hello Word";
console.log(hw()); //Not PARAM(s)

var foo = (bar) => {
  return `Hello Word ~${bar}~`;
};
console.log(foo("bar")); //With BodyContFn

/* ARROW bind this */
//- Soon

/* Class */
class Animal { 
  constructor(name) {
    this.name = name;
  }
  
  speak() {
    console.log(`${this.name} makes a noise.`);
  }
}

let ane = new Animal("Ane");
ane.speak();

class Dog extends Animal {
  speak() {
    console.log(`${this.name} barks.`);
  }
}

let bob = new Dog("Bob");
bob.speak();

/* Simple module ~without_loader~ */
//- baz.js
let baz = 'baz';

export default baz;

//another.js
import baz from "baz";

//- Try module in module and named your module