diff --git a/snippets_archive/binarySearch.md b/snippets_archive/binarySearch.md
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index c68b19b87..000000000
--- a/snippets_archive/binarySearch.md
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----
-title: binarySearch
-tags: algorithm,beginner
----
-
-Use recursion. Similar to `Array.prototype.indexOf()` that finds the index of a value within an array.
-The difference being this operation only works with sorted arrays which offers a major performance boost due to it's logarithmic nature when compared to a linear search or `Array.prototype.indexOf()`.
-
-Search a sorted array by repeatedly dividing the search interval in half.
-Begin with an interval covering the whole array.
-If the value of the search is less than the item in the middle of the interval, recurse into the lower half. Otherwise recurse into the upper half.
-Repeatedly recurse until the value is found which is the mid or you've recursed to a point that is greater than the length which means the value doesn't exist and return `-1`.
-
-```js
-const binarySearch = (arr, val, start = 0, end = arr.length - 1) => {
-  if (start > end) return -1;
-  const mid = Math.floor((start + end) / 2);
-  if (arr[mid] > val) return binarySearch(arr, val, start, mid - 1);
-  if (arr[mid] < val) return binarySearch(arr, val, mid + 1, end);
-  return mid;
-};
-```
-
-```js
-binarySearch([1, 4, 6, 7, 12, 13, 15, 18, 19, 20, 22, 24], 6); // 2
-binarySearch([1, 4, 6, 7, 12, 13, 15, 18, 19, 20, 22, 24], 21); // -1
-```
\ No newline at end of file
diff --git a/test/binarySearch.test.js b/test/binarySearch.test.js
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--- a/test/binarySearch.test.js
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-const {binarySearch} = require('./_30s.js');
-
-test('binarySearch is a Function', () => {
-  expect(binarySearch).toBeInstanceOf(Function);
-});
-test('Finds item in array', () => {
-  expect(binarySearch([1, 4, 6, 7, 12, 13, 15, 18, 19, 20, 22, 24], 6)).toBe(2);
-});
-test('Returns -1 when not found', () => {
-  expect(binarySearch([1, 4, 6, 7, 12, 13, 15, 18, 19, 20, 22, 24], 21)).toBe(-1);
-});
-test('Works with empty arrays', () => {
-  expect(binarySearch([], 21)).toBe(-1);
-});
-test('Works for one element arrays', () => {
-  expect(binarySearch([1], 1)).toBe(0);
-});