returns the length new array after removing provided instance

removeInstance.js

const removeInstance = (array=[], val=null) => {
  if(!Array.isArray(array)) return 0;
  if(!val) return array.length;
  let currIndex = array.indexOf(val);
  while(currIndex !== -1){
    array.splice(currIndex, 1)
    currIndex = array.indexOf(val);
  }
  return array.length
}

console.log(removeInstance([1,2,1,2,3,4,5], 1))
console.log(removeInstance(null))
console.log(removeInstance([1], null))

Hello @daviddamilola, thank you for participating in Week 2 of Algorithm Fridays.

This is a more robust solution, definitely an improvement from last week. Kudos to you!

Is there a reason why you used JavaScript's indexOf function? What do you think of looping through the array and comparing each element in the array with val?

I've posted my solution here. Please read through and let me know what you think.