[CodeWars] javascript - 6kyu - Replace With Alphabet Position 문제풀이

Title Replace With Alphabet Position DescriptionWelcome. In this kata you are required to, given a string, replace every letter with its position in the alphabet.

If anything in the text isn't a letter, ignore it and don't return it. "a" = 1, "b" = 2, etc.

Example alphabetPosition("The sunset sets at twelve o' clock.") Should return "20 8 5 19 21 14 19 5 20 19 5 20 19 1 20 20 23 5 12.....