abbreviateName.js (8kyu 27)

in about Dev on Algorithm

Codewars 알고리즘 풀이


Description

  • Write a function to convert a name into initials.
    • 이름을 이니셜로 변환한다.
  • This kata strictly takes two words with one space in between them.
    • 두 단어 사이에 공백이 하나만 있어야 한다.



Solution 01

function abbreviateName(name) {
  let arr = name.split(' ');
  let result = [];
  
  for (let i = 0; i < arr.length; i++) {
    result.push(arr[i][0].toUpperCase());
  }
  
  return result.join('.');
}

abbreviateName('Sam Azor');          // S.A
abbreviateName('Ralph Donovan');     // R.D
abbreviateName('Becky Daniel');      // B.D
abbreviateName('Lauren Hernandez');  // L.H


Solution 02

function abbreviateName(name) {
  let arr = name.split(' ');
  
  return (arr[0][0] + '.' + arr[1][0]).toUpperCase();
}

abbreviateName('Sam Azor');          // S.A
abbreviateName('Ralph Donovan');     // R.D
abbreviateName('Becky Daniel');      // B.D
abbreviateName('Lauren Hernandez');  // L.H


Solution 03

function abbreviateName(name) {
  let arr = name.toUpperCase().split(' ');
  
  return arr[0][0] + '.' + arr[1][0];
}

abbreviateName('Sam Azor');          // S.A
abbreviateName('Ralph Donovan');     // R.D
abbreviateName('Becky Daniel');      // B.D
abbreviateName('Lauren Hernandez');  // L.H


Solution 04

function abbreviateName(name) {
  return name.split(' ').map(i => i[0].toUpperCase()).join('.');
}

abbreviateName('Sam Azor');          // S.A
abbreviateName('Ralph Donovan');     // R.D
abbreviateName('Becky Daniel');      // B.D
abbreviateName('Lauren Hernandez');  // L.H


Solution 05

function abbreviateName(name) {
  return name.split(' ').map(i => i.substr(0, 1).toUpperCase()).join('.');
}

abbreviateName('Sam Azor');          // S.A
abbreviateName('Ralph Donovan');     // R.D
abbreviateName('Becky Daniel');      // B.D
abbreviateName('Lauren Hernandez');  // L.H


Solution 06

function abbreviateName(name) {
  return name.match(/\b\w/g).join('.').toUpperCase();
}

abbreviateName('Sam Azor');          // S.A
abbreviateName('Ralph Donovan');     // R.D
abbreviateName('Becky Daniel');      // B.D
abbreviateName('Lauren Hernandez');  // L.H