script.js

const empty = "",
uCase = "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
lCase = "abcdefghijklmnopqrstuvwxyz",
number = "0123456789",
symbol = "!@#$%^&*=-_";

const pLength = document.getElementById("p-length"),
upperCase = document.getElementById("p-uppercase"),
lowerCase = document.getElementById("p-lowercase"),
pNumber = document.getElementById("p-number"),
pSymbol = document.getElementById("p-symbol"),
submit = document.getElementById("submit"),
password = document.getElementById("password"),
copy = document.getElementById("copy");


submit.addEventListener("click", () => {
    let initialPassword = empty;
    //ADD CHARACTER IF AN OPTION IS CHECKED
    upperCase.checked ? (initialPassword += uCase) : "";
    lowerCase.checked ? (initialPassword += lCase) : "";
    pNumber.checked ? (initialPassword += number) : "";
    pSymbol.checked ? (initialPassword += symbol) : "";


    password.value = generatePassword(pLength.value, initialPassword)
})

function generatePassword(l, initialPassword) {
    let pass = "";
    for (let i = 0; i < l; i++) {
        pass += initialPassword.charAt(
            Math.floor(Math.random() * initialPassword.length)
        )
    }
    return pass;
}

// let str = "Hello";
// let result = str.charAt(0); // H

//Copy function

copy.addEventListener("click", () => {
    if (password.value == "") {
        alert("Please generate a password")
    }else{
        password.select();
        document.execCommand("copy")
        alert("Password has been copied to clipboard 🌟");
    }
})