From 374f11e987a6bb81652f98c66c6f596e41b98ddd Mon Sep 17 00:00:00 2001
From: Valery Malyshev <pherum83@gmail.com>
Date: Sat, 15 Jun 2024 01:46:37 +0300
Subject: [PATCH] A Needle in the Haystack

---
 8_kyu/A Needle in the Haystack/README.md     | 17 +++++
 8_kyu/A Needle in the Haystack/index.test.ts | 67 ++++++++++++++++++++
 8_kyu/A Needle in the Haystack/index.ts      |  3 +
 README.md                                    |  4 +-
 kata.md                                      |  1 -
 5 files changed, 89 insertions(+), 3 deletions(-)
 create mode 100644 8_kyu/A Needle in the Haystack/README.md
 create mode 100644 8_kyu/A Needle in the Haystack/index.test.ts
 create mode 100644 8_kyu/A Needle in the Haystack/index.ts

diff --git a/8_kyu/A Needle in the Haystack/README.md b/8_kyu/A Needle in the Haystack/README.md
new file mode 100644
index 0000000..89257dc
--- /dev/null
+++ b/8_kyu/A Needle in the Haystack/README.md	
@@ -0,0 +1,17 @@
+## A Needle in the Haystack
+
+https://www.codewars.com/kata/56676e8fabd2d1ff3000000c
+
+Can you find the needle in the haystack?
+
+Write a function findNeedle() that takes an array full of junk but containing one "needle"
+
+After your function finds the needle it should return a message (as a string) that says:
+
+"found the needle at position " plus the index it found the needle, so:
+
+**Example(Input --> Output)**
+
+```js
+["hay", "junk", "hay", "hay", "moreJunk", "needle", "randomJunk"] --> "found the needle at position 5"
+```
diff --git a/8_kyu/A Needle in the Haystack/index.test.ts b/8_kyu/A Needle in the Haystack/index.test.ts
new file mode 100644
index 0000000..fa9f564
--- /dev/null
+++ b/8_kyu/A Needle in the Haystack/index.test.ts	
@@ -0,0 +1,67 @@
+import { findNeedle } from "./index";
+
+describe("Tests", () => {
+    it("example", () => {
+        const haystack1 = ["3", "123124234", undefined, "needle", "world", "hay", 2, "3", true, false];
+        const haystack2 = [
+            "283497238987234",
+            "a dog",
+            "a cat",
+            "some random junk",
+            "a piece of hay",
+            "needle",
+            "something somebody lost a while ago",
+        ];
+        const haystack3 = [
+            1,
+            2,
+            3,
+            4,
+            5,
+            6,
+            7,
+            8,
+            8,
+            7,
+            5,
+            4,
+            3,
+            4,
+            5,
+            6,
+            67,
+            5,
+            5,
+            3,
+            3,
+            4,
+            2,
+            34,
+            234,
+            23,
+            4,
+            234,
+            324,
+            324,
+            "needle",
+            1,
+            2,
+            3,
+            4,
+            5,
+            5,
+            6,
+            5,
+            4,
+            32,
+            3,
+            45,
+            54,
+        ];
+
+        expect(findNeedle(haystack1)).toBe("found the needle at position 3");
+        expect(findNeedle(haystack1)).toBe("found the needle at position 3");
+        expect(findNeedle(haystack2)).toBe("found the needle at position 5");
+        expect(findNeedle(haystack3)).toBe("found the needle at position 30");
+    });
+});
diff --git a/8_kyu/A Needle in the Haystack/index.ts b/8_kyu/A Needle in the Haystack/index.ts
new file mode 100644
index 0000000..4b2995e
--- /dev/null
+++ b/8_kyu/A Needle in the Haystack/index.ts	
@@ -0,0 +1,3 @@
+export function findNeedle(haystack: (string | boolean | number | undefined)[]): string {
+    return "found the needle at position " + haystack.indexOf("needle");
+}
diff --git a/README.md b/README.md
index fd28721..413572b 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 ### Katas solved
 
-`Total`: 83 \
-`8_kyu`: 66 \
+`Total`: 84 \
+`8_kyu`: 67 \
 `7_kyu`: 13 \
 `6_kyu`: 4 \
 `5_kyu`: 0 \
diff --git a/kata.md b/kata.md
index 40b5e10..b4dbce7 100644
--- a/kata.md
+++ b/kata.md
@@ -1,4 +1,3 @@
-8 kyu - A Needle in the Haystack - https://www.codewars.com/kata/56676e8fabd2d1ff3000000c
 8 kyu - Convert a string to an array - https://www.codewars.com/kata/57e76bc428d6fbc2d500036d
 8 kyu - Fake Binary - https://www.codewars.com/kata/57eae65a4321032ce000002d
 8 kyu - Calculate BMI - https://www.codewars.com/kata/57a429e253ba3381850000fb