freeCodeCamp Challenge Guide: Return a Sorted Array Without Changing the Original Array

Guide
1

Return a Sorted Array Without Changing the Original Array

Solutions

Solution 1 (Click to Show/Hide) 
var globalArray = [5, 6, 3, 2, 9];
function nonMutatingSort(arr) {
  // Add your code below this line
  return [].concat(arr).sort(function(a, b) {
    return a - b;
  });
  // Add your code above this line
}
nonMutatingSort(globalArray);

Code Explanation

  • Firstly concatenate the array taken in as a parameter to a new empty array.
  • Then Use the sort() method as seen in the last challenge and create a function to sort the new array in ascending order.
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