Internet_Security/assets/js/main.js

const main = document.querySelector("#main");
const resultMail = document.querySelector("#result_mail");
const passwordTest = document.querySelector("#password_test");
const resultPassword = document.querySelector("#result_password");
const passwordManage = document.querySelector("#password_manage");
const security2AF = document.querySelector("#security_2AF");
const cookie = document.querySelector("#cookie");


mailRegex = new RegExp("(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|\"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\\\[\x01-\x09\x0b\x0c\x0e-\x7f])*\")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\\])");


document.querySelectorAll("input").forEach((el) => {
    el.addEventListener("change", (e => {
        el.classList.remove("error");
    }));
});

main.querySelector("input").addEventListener("keyup", (e) => {
    if (e.key === "Enter") {
        mailValid();
    }
});


function mailValid() {
    let input = main.querySelector("input");
    if (mailRegex.test(input.value)) {
        resultMail.classList.remove("hide");
        resultMail.scrollIntoView({
            "behavior": "smooth"
        });
    } else {
        input.classList.add("error");
    }
}