Add getMiddleElement array util

2024-12-05 11:15:51 +01:00
parent 7af53bbec0
commit 6efea94dd0
2 changed files with 30 additions and 1 deletions
@@ -1,5 +1,11 @@
 import { describe, expect, it } from 'bun:test';
-import { multArray, multBy, sumArray, sumBy } from './array.ts';
+import {
+  getMiddleElement,
+  multArray,
+  multBy,
+  sumArray,
+  sumBy
+} from './array.ts';

 describe('array utils', () => {
  it('sumArray number array', () => {
@@ -127,4 +133,10 @@ describe('array utils', () => {
    expect(multBy([], (e) => e)).toBeFinite();
    expect(multBy([], (e) => e)).toBe(0);
  });
+  it('getMiddleElement', () => {
+    expect(getMiddleElement([1, 2, 3, 4])).toBe(3);
+    expect(getMiddleElement([1, 2, 3])).toBe(2);
+    expect(getMiddleElement([1])).toBe(1);
+    expect(getMiddleElement([])).toBeUndefined();
+  });
 });