[Codewars] Password maker (7 kyu) / JavaScript

https://www.codewars.com/kata/5637b03c6be7e01d99000046

Codewars - Achieve mastery through coding practice and developer mentorship

 

DESCRIPTION:

One suggestion to build a satisfactory password is to start with a memorable phrase or sentence and make a password by extracting the first letter of each word.

Even better is to replace some of those letters with numbers (e.g., the letter O can be replaced with the number 0):

• instead of including i or I put the number 1 in the password;
• instead of including o or O put the number 0 in the password;
• instead of including s or S put the number 5 in the password.

 

Examples:

"Give me liberty or give me death"  --> "Gml0gmd"
"Keep Calm and Carry On"            --> "KCaC0"

 

코드

function makePassword(phrase) {
  return phrase.split(' ').map(el => el[0].replace(/i/ig, 1).replace(/o/ig, 0).replace(/s/ig, 5)).join('');
}