Hashing: Check if the Sentence Is Pangram

Author: jhonnymoreira

src/hashing/check-if-the-sentence-is-pangram.ts

@@ -0,0 +1,7 @@
+export function checkIfPangram(sentence: string): boolean {
+  const ALPHABET_SIZE = 26;
+
+  const uniqueLetters = new Set(sentence);
+
+  return uniqueLetters.size === ALPHABET_SIZE;
+}

tests/hashing/check-if-the-sentence-is-pangram.test.ts

@@ -0,0 +1,13 @@
+import { checkIfPangram } from '@/hashing/check-if-the-sentence-is-pangram.js';
+
+describe('Hashing: Check if the Sentence Is Pangram', () => {
+  test.each([
+    {
+      sentence: 'thequickbrownfoxjumpsoverthelazydog',
+      output: true,
+    },
+    { sentence: 'leetcode', output: false },
+  ])('checkIfPangram($sentence) === $output', ({ sentence, output }) => {
+    expect(checkIfPangram(sentence)).toStrictEqual(output);
+  });
+});