script.js

let sliderElement = document.querySelector("#slider");
let buttonElement = document.querySelector("#button");
let sizePassword = document.querySelector("#valor");
let password = document.querySelector("#password");
let containerPassword = document.querySelector("#container-password");
let charset = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%&*';
let novaSenha = '';
sizePassword.innerHTML = sliderElement.value;
slider.oninput = function() 
{
  sizePassword.innerHTML = this.value;
}

//Gera uma senha com base no valor do slider
function generatePassword() 
{
  let pass = '';
  for (let i = 0, n = charset.length; i < sliderElement.value; ++i) {
    pass += charset.charAt(Math.floor(Math.random() * n));
  }
  console.log(pass);
  containerPassword.classList.remove("hide");
  password.innerHTML = pass;
  novaSenha = pass;
}

//Copia a senha gerada para a área de transferência
function copyPassword() 
{
  alert("Senha copiada com sucesso!");
  navigator.clipboard.writeText(novaSenha);
}