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diff --git a/‎32-The-Basics-of-Testing/05-hidash/.gitignore‎
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diff --git a/‎32-The-Basics-of-Testing/05-hidash/index.js‎
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diff --git a/‎32-The-Basics-of-Testing/05-hidash/index.test.js‎
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+/node_modules
+node_modules/
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+module.exports = {
+  forEach(arr, fn) {
+    for (let index in arr) {
+      fn(arr[index], index)
+    }
+  },
+  map(arr, fn) {
+    const result = []
+    for (let i = 0; i < arr.length; i++) {
+      result.push(fn(arr[i], i))
+    }
+
+    return result
+  },
+}
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+const assert = require('assert')
+const { forEach, map } = require('./index')
+
+it('The forEach function', () => {
+  let sum = 0
+  forEach([1, 2, 3], (value) => {
+    sum += value
+  })
+
+  // Optionally we can pass a third argument of an error message
+  assert.strictEqual(sum, 6)
+  // assert.strictEqual(sum, 7, 'Expected forEach to sum the array')
+})
+
+it('The map funciton', () => {
+  const result = map([1, 2, 3], (value) => {
+    return value * 2
+  })
+
+  // assert.deepStrictEqual(result, [2, 4, 7]) // this throws an error
+  assert.deepStrictEqual(result, [2, 4, 6])
+})