Wykryć Pangram
/*
// A pangram is a sentence that contains every single letter of the alphabet at
least once. For example, the sentence "The quick brown fox jumps over the lazy
dog" is a pangram, because it uses the letters A-Z at least once
(case is irrelevant).
// Given a string, detect whether or not it is a pangram. Return True if it is,
False if not. Ignore numbers and punctuation.
*/
const isPangram = string => [... new Set(string.replace(/[\d|\W|\s|_]/gi, "")
.toLowerCase())].length === 26
// With love @kouqhar
kouqhar