Advanced JS Notes :

Arrow Functions: 

Code: 

let sumIs = (a, b) => a + b

console.log(sumIs);

let randomIs = () => Math.random;

document.addEventListener('click', () => console.log("click");)

Spread Operator

// Spread Operator

arr = [1, 3, 1];

let sum = (a, b) => a + b;

let s = sum(...arr);

// console.log(s);

arr2 = [2, 5, 5];

let b = [...arr, ...arr2]; //Concating arr using spread

console.log(b);

// Spread With Obj

let obj1 = {

  name: "Mihir",

  age: 24,

  favStar: "TrishCollins",

};

let obj2 = { ...obj1, name: "Rahul", favStar: "SRK" };

// Object manipulation using spread operator

console.log(obj2);