Stack3web
diff --git a/‎32-The-Basics-of-Testing/02-hidash/index.js‎
Lines changed: 9 additions & 1 deletion b/‎32-The-Basics-of-Testing/02-hidash/index.js‎
Lines changed: 9 additions & 1 deletion
diff --git a/‎32-The-Basics-of-Testing/02-hidash/index.test.js‎
Lines changed: 23 additions & 6 deletions b/‎32-The-Basics-of-Testing/02-hidash/index.test.js‎
Lines changed: 23 additions & 6 deletions
@@ -4,4 +4,12 @@ module.exports = {
       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
+  },
+}
@@ -1,12 +1,29 @@
 const { forEach, map } = require('./index')
 
-let sum = 0
-forEach([1, 2, 3], (value) => {
-  sum += value
+// let sum = 0
+// forEach([1, 2, 3], (value) => {
+//   sum += value
+// })
+
+// console.log(sum)
+
+// if (sum !== 6) {
+//   throw new Error('Expected summing array to equal 6')
+// }
+
+const result = map([1, 2, 3], (value) => {
+  return value * 2
 })
+//  result === [2, 4, 6]
 
-console.log(sum)
+if (result[0] !== 2) {
+  throw new Error(`Expected to find 2, but found ${result[0]}`)
+}
+
+if (result[1] !== 4) {
+  throw new Error(`Expected to find 4, but found ${result[1]}`)
+}
 
-if(sum !== 6) {
-  throw new Error('Expected summing array to equal 6')
+if (result[2] !== 6) {
+  throw new Error(`Expected to find 6, but found ${result[2]}`)
 }