How this solution works what if the current element of the array is equal to num

JavaScript
1

I have tried many ways of solving this challenge and it seems not obvious for me in some cases

I have tried this one and it did not work because it might be the num is equal to the current array element we are looping in so I had to use >=

function getIndexToIns(arr, num) {
  arr.sort((a, b) => a - b);

  console.log(arr)
  
  for(let i = 0; i < arr.length; i++){
    if(arr[i] > num){
     console.log(arr[i])
      return arr[i]
    }
  }
  return arr.length
}

now with this solution how could return the right index when the array only returns the numbers there index less than num what if it is equal to the num ?


function getIndexToIns(arr, num) {
return arr.filter(numb => num > numb).length
}

getIndexToIns([40, 60], 50);

Challenge: Where do I Belong

Link to the challenge:

2

the second one counts how many numbers are smaller than the number to insert, if you confront that with the index, you may find out that, being arrays 0-indexed, it works perfectly

3

but why it did not work with first one?

1 Like
4

If you have [40, 40, 40] and the number 40, at what index should you add it?

5

if I had this array with my first solution it will return the arr.length. but for the second solution it will be on zero index

6

and what would be the correct number based on challenge requirements?

7

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