js- Letters of the alphabet

const letters = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']

// Should just be able to use the known starting numbers

const letters = [...Array(26)].map((_, i) => String.fromCharCode('A'.charCodeAt(0) + i));