javascript contains vowels code example

Example 1: how to make a vowel counter in javascript

const vowelCount = str => {
  let vowels = /[aeiou]/gi;
  let result = str.match(vowels);
  let count = result.length;

  console.log(count);
};

Example 2: count vowels in a string javascript

// BEST and FASTER implementation using regex
const countVowels = (str) => (str.match(/[aeiou]/gi) || []).length