spread operator - 3
JavaScript
const shallowCopyArray = arr => [...arr]
// Expected usage:
const arr = [1, 2, 3]
const copy = shallowCopyArray(arr)
arr === copy // false
copy[0] = 'yo'
console.log(arr) // [1, 2, 3]
const shallowCopyArray = arr => [...arr]
// Expected usage:
const arr = [1, 2, 3]
const copy = shallowCopyArray(arr)
arr === copy // false
copy[0] = 'yo'
console.log(arr) // [1, 2, 3]