arrays.js

var chocolateBars = ['snickers', 'hundred grand', 'kitkat', 'skittles']
function addElementToBeginningOfArray(array, element){
  return [element, ...array]
}
function destructivelyAddElementToBeginningOfArray(array, element) {
   array.unshift(element);
   return array;
}
function addElementToEndOfArray(array, element){
  return [...array, element]
}
function destructivelyAddElementToEndOfArray(array, element){
  array.push(element)
  return array
}
function accessElementInArray(array, index){
  return array[index]
}
function destructivelyRemoveElementFromBeginningOfArray(array){
  array.shift()
  return array
}
function removeElementFromBeginningOfArray(array){
  return array.slice(1)
}
function destructivelyRemoveElementFromEndOfArray(array){
  array.pop()
  return array
}
function removeElementFromEndOfArray(array){
  return array.slice(0, array.length - 1)
}