[Codewars] Find the position! (8 kyu) / JavaScript

https://www.codewars.com/kata/5808e2006b65bff35500008f

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DESCRIPTION:

When provided with a letter, return its position in the alphabet.

Input :: "a"

Ouput :: "Position of alphabet: 1"

 

코드

function position(letter){
  return `Position of alphabet: ${letter.charCodeAt(0) - 96}`;
}