diff --git a/.editorconfig b/.editorconfig
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diff --git a/.gitignore b/.gitignore
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diff --git a/.learn b/.learn
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diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
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diff --git a/LICENSE.md b/LICENSE.md
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diff --git a/README.md b/README.md
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diff --git a/index.html b/index.html
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diff --git a/index.js b/index.js
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index 695b9e17a..5b69699f5
--- a/index.js
+++ b/index.js
@@ -1 +1,48 @@
 const app = "I don't do much."
+
+var kittens = ["Milo", "Otis", "Garfield"];
+function Arrays() {
+  return kittens;
+}
+
+
+function kittens() {
+  var Kittens = ["Milo", "Otis", "Garfield"];
+  return Kittens;
+}
+
+function destructivelyAppendKitten(name) {
+  kittens.push(name);
+  return kittens;
+}
+
+function destructivelyPrependKitten(name) {
+  kittens.unshift(name);
+  return kittens;
+}
+
+function destructivelyRemoveLastKitten(name) {
+  kittens.pop(kittens.length-1);
+  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(0,2);
+}
+
+function removeFirstKitten() {
+   return kittens.slice(1,3);
+}
diff --git a/package.json b/package.json
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diff --git a/test/index-test.js b/test/index-test.js
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diff --git a/test/mocha.opts b/test/mocha.opts
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diff --git a/test/root.js b/test/root.js
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