password-test.js

function passwordIsValid(password) {
  if (password.length < 8 || password.length > 255) return false
  
  const upper = []
  const lower = []
  const num = []
  const special = []
  
  password.split("").forEach(c => {
    if (upper.length === 0 && c.match(/[A-Z]/)) upper.push(c)
    if (lower.length === 0 && c.match(/[a-z]/)) lower.push(c)
    if (num.length === 0 && c.match(/[0-9]/)) num.push(c)
    if (special.length === 0 && c.match(/[@_-"!?+`´#$%&/()^¨*><,.;:]/)) special.push(c)
  })
  
  return !!upper.length && !!lower.length && !!num.length && !!special.length
}