main.js

let pass = document.getElementById("pass");
let btn = document.getElementById("btn");
let btncp = document.getElementById("btncp");

function generatePass() {
  let chars =
    "1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%^&*()_+[]{}?><";
  let passLength = 8;
  let password = "";
  for (let i = 0; i < passLength; i++)
    password += chars[Math.floor(Math.random() * chars.length)];

  return password;
  writeText;
}
btn.addEventListener("click", () => {
  pass.value = generatePass();
});

btncp.addEventListener("click", () => {
  if (pass.value != "") {
    navigator.clipboard.writeText(pass.value);
    pass.value = "Copied!";
    pass.classList.add("active");
    setTimeout(() => {
      pass.value = "";
      pass.classList.remove("active");
    }, 1000);
  } else {
    Swal.fire({
      icon: "error",
      title: "Oops...",
      text: "Please Press On Generate Password !!",
    });
  }
});