JS code

let genPassword = (len) => {
    const symbols = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789()_!";

    let password = "";
    for (let i = 0; i < len; i++) {
        password += symbols.charAt(Math.floor(Math.random() * symbols.length));
    }
    return password;
}

function getValue (id) {
    text = document.getElementById(id).value; //value of the text input
    alert(text);
    return false;
}
document.getElementsByName("limit")[0].value;