removeVowels.js (8kyu 28)

28 Apr 2018 in about Dev on Algorithm

Codewars 알고리즘 풀이

Description

Create a function to remove all the lowercase vowels in a given string.
- 문자열에서 모든 소문자 모음(vowel)을 제거한다.

Solution 01

function removeVowels(str) {
  const vowels = 'aeiou';
  let result = '';
  
  for (let i = 0; i < str.length; i++) {
    if (vowels.indexOf(str[i]) === -1) {
      result += str[i];
    }
  }
  
  return result;
}

removeVowels('aeiou');        // ''
removeVowels('AEIOU');        // AEIOU
removeVowels('Codewars');     // Cdwrs
removeVowels('Hello world');  // Hll wrld

Solution 02

function removeVowels(str) {
  const vowels = 'aeiou';
  
  return str.split('').filter(i => {
    return vowels.indexOf(i) === -1;
  }).join('');
}

removeVowels('aeiou');        // ''
removeVowels('AEIOU');        // AEIOU
removeVowels('Codewars');     // Cdwrs
removeVowels('Hello world');  // Hll wrld

Solution 03

function removeVowels(str) {
  return str.replace(/[aeiou]/g, '');
}

removeVowels('aeiou');        // ''
removeVowels('AEIOU');        // AEIOU
removeVowels('Codewars');     // Cdwrs
removeVowels('Hello world');  // Hll wrld