Vowels

Instructions:

• Write a function that returns the number of vowels used in a string. Vowels are the characters 'a', 'e' 'i', 'o', and 'u'.

Examples:

• vowels('Hi There!') --> 3
• vowels('Why do you ask?') --> 4
• vowels('Why?') --> 0+

Repl.it:

• vowels

Code:

// First (🌶)
function vowels(str) {
  let count = 0;
  const checker = ['a', 'e', 'i', 'o', 'u'];
  for (let char of str.toLowerCase()) {
    if (checker.includes(char)) {
      count++;
    }
  }
  return count;
}
// Second (🌽)
function vowels(str) {
  const matches = str.match(/[aeiou]/gi);
  return matches ? matches.length : 0;
}