JS显示/打开汉堡菜单的问题

Question

I've been having trouble figuring out what's missing in JS or HTML that's not causing the hamburger menu to show when clicked appropriately. I usually get an error with a permissions message but I've been able to use JS fine so this project is the only one I've been having problems with.

 const hamburgerIcon = document.getElementsByClassName('hamburger-icon')[0] const navbarLinks = document.getElementsByClassName('navbar-links')[0] hamburgerIcon.addEventListener('click', () => { navbarLinks.classList.toggle('active') })

 .brand-title { color: #000; margin-left: 2rem; }.navbar { display: flex; justify-content: space-between; align-items: center; padding: 1.2rem; }.navbar-links ul { margin: 0; display: flex; padding: 0; }.navbar-links li { list-style: none; }.navbar-links li a { text-decoration: none; color: #000; display: block; padding: 1rem 1.5rem; }.hamburger-icon { display: none; color: #000; cursor: pointer; }

 <nav class="navbar"> <div class="brand-title">LOGO</div> <a href="#" class="hamburger-icon"><i class="fa-solid fa-bars fa-2x"></i></a> <div class="navbar-links"> <ul class="navbar-items"> <li><a href='./pages/projects.html'>Projects</a></li> <li><a href=#>About</a></li> <li><a href=#>Contact</a></li> </ul> </div> </nav>

Answer 1

I cant see what U have done for showing menu. in fact there is no active class selector in UR css code if U did not used libs and it is a pure implementation pay more attention for what U want.

Answer 2

You should fix your CSS code. Apply this code...

    const hamburgerIcon =
            document.getElementsByClassName('hamburger-icon')[0];
        const navbarLinks = document.getElementsByClassName('navbar-links')[0];

        hamburgerIcon.addEventListener('click', () => {
            navbarLinks.classList.toggle('active');
        });

.brand-title {
            color: #000;
            margin-left: 2rem;
        }
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem;
        }

        .navbar-links ul {
            margin: 0;
            display: flex;
            padding: 0;
        }

        .navbar-links li {
            list-style: none;
        }

        .navbar-links li a {
            text-decoration: none;
            color: #000;
            display: block;
            padding: 1rem 1.5rem;
        }

        /* added code here */
        .hamburger-icon {
            display: none;
            color: #000;
            cursor: pointer;
        }
        
        .navbar-links.active  {
            display: block;
        }
        @media (max-width:768px) {
            .navbar-links {
                display: none;
            }
            .hamburger-icon {
                display: block; 
            }
        }

<nav class="navbar">
            <div class="brand-title">LOGO</div>
            <a href="#" class="hamburger-icon"
                >Hamburger</i
            ></a>

            <div class="navbar-links">
                <ul class="navbar-items">
                    <li><a href="./pages/projects.html">Projects</a></li>
                    <li><a href="#">About</a></li>
                    <li><a href="#">Contact</a></li>
                </ul>
            </div>
        </nav>