diff --git a/.results.json b/.results.json
new file mode 100644
index 0000000000..b8308da2d4
--- /dev/null
+++ b/.results.json
@@ -0,0 +1,144 @@
+{
+  "stats": {
+    "suites": 11,
+    "tests": 9,
+    "passes": 9,
+    "pending": 0,
+    "failures": 0,
+    "start": "2025-03-18T01:59:48.572Z",
+    "end": "2025-03-18T01:59:49.250Z",
+    "duration": 678
+  },
+  "tests": [
+    {
+      "title": "is assigned an initial value of [\"Milo\", \"Otis\", \"Garfield\"]",
+      "fullTitle": "index.js cats is assigned an initial value of [\"Milo\", \"Otis\", \"Garfield\"]",
+      "duration": 1,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "appends a cat to the end of the cats array",
+      "fullTitle": "index.js Array functions destructivelyAppendCat(name) appends a cat to the end of the cats array",
+      "duration": 1,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "prepends a cat to the beginning of the cats array",
+      "fullTitle": "index.js Array functions destructivelyPrependCat(name) prepends a cat to the beginning of the cats array",
+      "duration": 0,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "removes the last cat from the cats array",
+      "fullTitle": "index.js Array functions destructivelyRemoveLastCat() removes the last cat from the cats array",
+      "duration": 2,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "removes the first cat from the cats array",
+      "fullTitle": "index.js Array functions destructivelyRemoveFirstCat() removes the first cat from the cats array",
+      "duration": 0,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "appends a cat to the cats array and returns a new array, leaving the cats array unchanged",
+      "fullTitle": "index.js Array functions appendCat(name) appends a cat to the cats array and returns a new array, leaving the cats array unchanged",
+      "duration": 1,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "prepends a cat to the cats array and returns a new array, leaving the cats array unchanged",
+      "fullTitle": "index.js Array functions prependCat(name) prepends a cat to the cats array and returns a new array, leaving the cats array unchanged",
+      "duration": 0,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "removes the last cat in the cats array and returns a new array, leaving the cats array unchanged",
+      "fullTitle": "index.js Array functions removeLastCat() removes the last cat in the cats array and returns a new array, leaving the cats array unchanged",
+      "duration": 0,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "removes the first cat from the cats array and returns a new array, leaving the cats array unchanged",
+      "fullTitle": "index.js Array functions removeFirstCat() removes the first cat from the cats array and returns a new array, leaving the cats array unchanged",
+      "duration": 0,
+      "currentRetry": 0,
+      "err": {}
+    }
+  ],
+  "pending": [],
+  "failures": [],
+  "passes": [
+    {
+      "title": "is assigned an initial value of [\"Milo\", \"Otis\", \"Garfield\"]",
+      "fullTitle": "index.js cats is assigned an initial value of [\"Milo\", \"Otis\", \"Garfield\"]",
+      "duration": 1,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "appends a cat to the end of the cats array",
+      "fullTitle": "index.js Array functions destructivelyAppendCat(name) appends a cat to the end of the cats array",
+      "duration": 1,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "prepends a cat to the beginning of the cats array",
+      "fullTitle": "index.js Array functions destructivelyPrependCat(name) prepends a cat to the beginning of the cats array",
+      "duration": 0,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "removes the last cat from the cats array",
+      "fullTitle": "index.js Array functions destructivelyRemoveLastCat() removes the last cat from the cats array",
+      "duration": 2,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "removes the first cat from the cats array",
+      "fullTitle": "index.js Array functions destructivelyRemoveFirstCat() removes the first cat from the cats array",
+      "duration": 0,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "appends a cat to the cats array and returns a new array, leaving the cats array unchanged",
+      "fullTitle": "index.js Array functions appendCat(name) appends a cat to the cats array and returns a new array, leaving the cats array unchanged",
+      "duration": 1,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "prepends a cat to the cats array and returns a new array, leaving the cats array unchanged",
+      "fullTitle": "index.js Array functions prependCat(name) prepends a cat to the cats array and returns a new array, leaving the cats array unchanged",
+      "duration": 0,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "removes the last cat in the cats array and returns a new array, leaving the cats array unchanged",
+      "fullTitle": "index.js Array functions removeLastCat() removes the last cat in the cats array and returns a new array, leaving the cats array unchanged",
+      "duration": 0,
+      "currentRetry": 0,
+      "err": {}
+    },
+    {
+      "title": "removes the first cat from the cats array and returns a new array, leaving the cats array unchanged",
+      "fullTitle": "index.js Array functions removeFirstCat() removes the first cat from the cats array and returns a new array, leaving the cats array unchanged",
+      "duration": 0,
+      "currentRetry": 0,
+      "err": {}
+    }
+  ]
+}
\ No newline at end of file
diff --git a/index.js b/index.js
index 132693a35c..935815f583 100644
--- a/index.js
+++ b/index.js
@@ -1 +1,41 @@
-// Write your solution here!
+let cats = ["Milo", "Otis", "Garfield"];
+
+function destructivelyAppendCat(name) {
+    cats.push(name);
+    // function to append a cat destructively
+}
+
+// function to remove the last cat destructively 
+function destructivelyRemoveLastCat() {
+    cats.pop();  
+}
+
+function destructivelyPrependCat(name) {
+    cats.unshift(name);
+    // adds at cat to the beginning
+}
+
+function destructivelyRemoveFirstCat() {
+    cats.shift();
+    // removes the first cat
+}
+
+function appendCat(name) {
+    return [...cats, name];
+    // creates a new array with the new cat added at the end
+}
+
+function prependCat(name) {
+    return [name, ...cats,];
+    // creates a new array with 'name' at the beginning
+}
+
+function removeLastCat() {
+    return cats.slice(0, -1);
+    // returns a new array without the last element
+}
+
+function removeFirstCat() {
+    return cats.slice(1);
+    // returns a new array without modifying the original
+}
\ No newline at end of file