removeVowels.js (7kyu 04)

in about Dev on Algorithm

Codewars 알고리즘 풀이


Description

  • Your task is to write a function that takes a string and return a new string with all vowels removed.
    • 모든 모음(vowel)이 제거된 새로운 문자열을 반환한다.



Solution 01

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

removeVowels('Hello World');  // Hll Wrld
removeVowels('Codewars');     // Cdwrs
removeVowels('Abracadabra');  // brcdbr


Solution 02

function removeVowels(str) {
  const vowels = ['a', 'e', 'i', 'o', 'u'];
  
  return str.split('').filter(i => {
    return vowels.indexOf(i.toLowerCase()) === -1;
  }).join('');
}

removeVowels('Hello World');  // Hll Wrld
removeVowels('Codewars');     // Cdwrs
removeVowels('Abracadabra');  // brcdbr


Solution 03

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

removeVowels('Hello World');  // Hll Wrld
removeVowels('Codewars');     // Cdwrs
removeVowels('Abracadabra');  // brcdbr