count number of vowels javascript with map 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: how to make a vowel counter in javascript

function countVowels(str) {
  return str.match(/[aeiou]/g).length;
}