// What might go wrong with the following code
let inputs = [1, 2, 3, 4, 5, 6, 7]
let filtered = [];

inputs.forEach((curInput, i) => {
  if (curInput % 2) {
     inputs[i] = curInput * 4
  }else{
     inputs.splice(i, 1)
     filtered.push(curInput);
  }
});