Pangram - kata

function isPangram(str) {
  const input = str.replace(/[^\w]/g, '').toLowerCase().split('');
  return [...new Set(input)].length === 26;

  }
  console.log(isPangram('Sphinx of black quartz, judge my vow.'));

/*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).

Create a function that accepts a string and detects whether or not it is a pangram. Return true if is a pangram, otherwise, return false.

The function should ignore numbers and punctuation.

Examples:

isPangram('abcdefghijklmnopqrstuvwxyz') === true
isPangram('Sphinx of black quartz, judge my vow.') === true
isPangram('AbCdEfGhIjKlMzxWvUtSrQpOn') === false // 'y' is missing
isPangram('Detect Pangram') === false */