How can you sort an array without mutating the original array?

Question

Let\'s suppose I wanted a sort function that returns a sorted copy of the inputted array. I naively tried this

function sort(arr) {
  return arr.sort();
}
         


        

Answer 1

You can also do this

d = [20, 30, 10]
e = Array.from(d)
e.sort()

This way d will not get mutated.

function sorted(arr) {
  temp = Array.from(arr)
  return temp.sort()
}

//Use it like this
x = [20, 10, 100]
console.log(sorted(x))