rest operator

rest.js

//In arrays

let nums = [1, 2, 3, 4, 5]

let [a, ...b] = nums

console.log(a) //prints 1
console.log(b) //prints [2, 3, 4, 5]

let nums = [1, 2, 3, 4, 5]

let [a, ...b, c] = nums

console.log(a) //prints 1
console.log(b) //prints [2, 3, 4, 5]
console.log(c) //error ( "SyntaxError: Rest element must be last element" )

//In Objects

let obj = {
  name: ["Gagan", "Anmol"],
}

obj = {...obj, name: [...obj.name, "Mantek"] }

console.log(obj.name) // ["Gagan", "Anmol", "Mantek"]