Done

arrays.js

@@ -0,0 +1,47 @@
+var chocolateBars = [
+  "snickers",
+  "hundred grand",
+  "kitkat",
+  "skittles"];
+
+function addElementToBeginningOfArray(chocolateBars, foo){
+  return [foo, ...chocolateBars];
+}
+
+function destructivelyAddElementToBeginningOfArray(chocolateBars, foo){
+  chocolateBars.unshift("foo");
+  return chocolateBars;
+}
+
+function addElementToEndOfArray(chocolateBars, foo){
+  return [...chocolateBars, foo];
+}
+
+function destructivelyAddElementToEndOfArray(chocolateBars, foo){
+  chocolateBars.push("foo");
+  return chocolateBars;
+}
+
+function accessElementInArray(chocolateBars, index){
+  return chocolateBars[index];
+}
+
+function destructivelyRemoveElementFromBeginningOfArray(chocolateBars, index){
+  chocolateBars.shift();
+  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;
+}