arrays.js

var chocolateBars = ["snickers","hundred grand","kitkat","skittles"];
var candyString = 'foo';
function addElementToBeginningOfArray(chocolateBars, candyString) {
  return [candyString,...chocolateBars];
}
function destructivelyAddElementToBeginningOfArray(chocolateBars, candyString) {
  chocolateBars.unshift(candyString);
  return chocolateBars;
}
function addElementToEndOfArray(chocolateBars, candystring) {
  return [...chocolateBars, candyString];
}
function destructivelyAddElementToEndOfArray(chocolateBars, candyString) {
  chocolateBars.push(candyString);
  return chocolateBars;
}
function accessElementInArray(chocolateBars, index) {
  return (chocolateBars[2]);
}
function destructivelyRemoveElementFromBeginningOfArray(chocolateBars) {
  chocolateBars.shift(candyString);
  return chocolateBars;
}
function removeElementFromBeginningOfArray(chocolateBars) {
  chocolateBars = chocolateBars.slice(1);
  return chocolateBars;
}
function destructivelyRemoveElementFromEndOfArray(chocolateBars) {
  chocolateBars.pop();
  return chocolateBars;
}
function removeElementFromEndOfArray(chocolateBars) {
  chocolateBars = chocolateBars.slice(0, chocolateBars.length-1);
  return chocolateBars;
}