diff --git a/index.js b/index.js
index 132693a35c..073d841a63 100644
--- a/index.js
+++ b/index.js
@@ -1 +1,37 @@
-// Write your solution here!
+const cats = ['Milo', 'Otis', 'Garfield']
+
+function destructivelyAppendCat() {
+  cats.push('Ralph')
+} 
+
+function destructivelyPrependCat() {
+  cats.unshift('Bob')
+}
+
+function destructivelyRemoveLastCat() {
+  cats.pop()
+}
+
+function destructivelyRemoveFirstCat() {
+  cats.shift()
+}
+
+function appendCat(name) {
+  const newCatList = [...cats, name]
+  return newCatList
+}
+
+function prependCat(name) {
+  const anotherNewCatList = [name, ...cats]
+  return anotherNewCatList
+}
+
+function removeLastCat() {
+  const thirdNewCatList = cats.slice (0, cats.length - 1)
+  return thirdNewCatList
+}
+
+function removeFirstCat() {
+  const fourthNewCatList = cats.slice (1, cats.length)
+  return fourthNewCatList
+}