A Needle in the Haystack

8_kyu/A Needle in the Haystack/README.md

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+## 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"
+```

8_kyu/A Needle in the Haystack/index.test.ts

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+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");
+    });
+});

8_kyu/A Needle in the Haystack/index.ts

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+export function findNeedle(haystack: (string | boolean | number | undefined)[]): string {
+    return "found the needle at position " + haystack.indexOf("needle");
+}

README.md

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 ### Katas solved
 
-`Total`: 83 \
-`8_kyu`: 66 \
+`Total`: 84 \
+`8_kyu`: 67 \
 `7_kyu`: 13 \
 `6_kyu`: 4 \
 `5_kyu`: 0 \

kata.md

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-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