//In this Kata, you will learn how to remove all empty items in an Array.

//iterate... if

function clean(arr) {

  arr.map( (elem, i, arr) => {
    if(elem === ' '){
      arr.splice(i, 1)
    }
  })

  return arr;

}

clean([1, 2,,,3, 4])

// In JavaScript, empty items in arrays can be declared by [1, 2,,,3, 4] (Multiple commas without a value in that index)

// The values that are not given a value are empty items, and usually add up with others to form <# empty items>; In the example, <2 empty items>

// [1, 2, <2 empty items>, 3, 4] should be cleared such that it should be [1, 2, 3, 4]

// Example:

// Before: [1, 2, 3, <5 empty items>, 4, <1 empty item>, null, undefined];

// After: [1, 2, 3, 4, null, undefined];