Discussion on: How to duplicate array

[Ahmad Rafsanjani]

I wonder how people do it before spread operator exists ?..

[Heru Hartanto]

I did this 😆

const a =[1,2,3]
const b = a.slice()
b.push(4)
console.log(a,b)

[Ahmad Rafsanjani]

Aah..got it.. thanx