script.js

const passwordBox = document.getElementById("password");
const length = 16;

const upperCase = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
const lowerCase = "abcdefghijklmnopqrstuvwxyz";
const numbers = "0123456789";
const symbols = "!@#$%^&*()_+~-=[]{}|/<>?";

const allCharacters = upperCase + lowerCase + numbers + symbols;

function generatePassword() {
    let password = "";
    password += upperCase[Math.floor(Math.random() * upperCase.length)];
    password += lowerCase[Math.floor(Math.random() * lowerCase.length)];
    password += numbers[Math.floor(Math.random() * numbers.length)];
    password += symbols[Math.floor(Math.random() * symbols.length)];
    while (password.length < length) {
        password += allCharacters[Math.floor(Math.random() * allCharacters.length)];
    }
    passwordBox.value = password;
}

function copyPassword() {
    passwordBox.select();
    document.execCommand("copy");

}