diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6b7abe5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+node_modules
+.DS_Store
+
+yarn.lock
+yarn-error.log
\ No newline at end of file
diff --git a/babel.config.json b/babel.config.json
new file mode 100644
index 0000000..cedf24f
--- /dev/null
+++ b/babel.config.json
@@ -0,0 +1,5 @@
+{
+  "presets": [
+    "@babel/preset-env"
+  ]
+}
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..9b19675
--- /dev/null
+++ b/package.json
@@ -0,0 +1,28 @@
+{
+  "dependencies": {
+    "@babel/preset-env": "^7.15.0",
+    "jest": "^27.0.6"
+  },
+  "scripts": {
+    "test": "jest"
+  },
+  "name": "tdd-examples",
+  "version": "1.0.0",
+  "main": "squareRoot.js",
+  "devDependencies": {},
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/adekunleoduye/tdd-examples.git"
+  },
+  "author": "Adekunle Oduye",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/adekunleoduye/tdd-examples/issues"
+  },
+  "homepage": "https://github.com/adekunleoduye/tdd-examples#readme",
+  "description": "TDD in javascript",
+  "keywords": [
+    "javascript",
+    "tdd"
+  ]
+}
diff --git a/squareRoot.js b/squareRoot.js
new file mode 100644
index 0000000..e69de29
diff --git a/squareRoot.test.js b/squareRoot.test.js
new file mode 100644
index 0000000..34ba8af
--- /dev/null
+++ b/squareRoot.test.js
@@ -0,0 +1,10 @@
+import squareRoot from 'squareRoot.js'
+
+describe('Squareroot', () => {
+  it("Should output number's square", () => {
+    const acutal = squareRoot(3);
+    const expected = 9;
+
+    expect(acutal).toEqual(expected);
+  })
+})