Functional Programming - Return a Sorted Array Without Changing the Original Array

JavaScript
1

Tell us what’s happening:

Describe your issue in detail here.
I am not mutating global variable but still why this code is failing?

Your code so far

const globalArray = [1, 30, 4, 21, 100000];

function nonMutatingSort(arr) {
  // Only change code below this line
let newArr=[...arr];   
return newArr.sort((a,b)=>{
  return a-b  
})

  // Only change code above this line
}

console.log(nonMutatingSort(globalArray));

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Challenge Information:

Functional Programming - Return a Sorted Array Without Changing the Original Array

2

It seems you change the globalArray? You just need to set it back to the original values and you should be fine.

If you want to test some values, I recommend to comment the original values and create a new one so that you don’t have to reset the lesson:

// const globalArray = [5, 6, 3, 2, 9];     <-- original values
const globalArray = [1, 30, 4, 21, 100000]; <-- new values for testing

function nonMutatingSort(arr) {
  // Only change code below this line

  let newArr=[...arr];   
  return newArr.sort((a,b)=>{
    return a-b
2 Likes
3

woo hoo thanks u saved me I was gona pull my hairs!

4

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