Done

index.js

@@ -1 +1,32 @@
 const app = "I don't do much."
+var kittens = ["Milo", "Otis", "Garfield"];
+
+function destructivelyAppendKitten(name) {
+  kittens.push(name);
+  return kittens;
+}
+
+function destructivelyPrependKitten(name) {
+  kittens.unshift(name);
+  return kittens;
+}
+function destructivelyRemoveLastKitten() {
+  kittens.pop();
+  return kittens;
+}
+function destructivelyRemoveFirstKitten() {
+  kittens.shift();
+  return kittens;
+}
+function appendKitten(name) {
+  return [...kittens, `${name}`];
+}
+function prependKitten(name) {
+  return [`${name}`, ...kittens];
+}
+function removeLastKitten() {
+  return kittens.slice(0, kittens.length - 1);
+}
+function removeFirstKitten() {
+  return kittens.slice(1);
+}