Change active class when a menu item is clicked

Question

I'm trying to change the active class when I click one of the items in the menu, but how do I change the color on selected tab to another active tab and then remove the old one?

.wdc-table-menu ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #484A51;
    border-top-right-radius: 0.938rem;
    border-top-left-radius: 0.938rem;
}

.wdc-table-menu li {
    float: left;
}

.wdc-table-menu li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    border-top-right-radius: 0.938rem;
    border-top-left-radius: 0.938rem;
}

.wdc-table-menu li a:hover {
    background-color: #3A3B41;
}

.wdc-table-menu .active {
    background-color: #3A3B41;
}

.wdc-table-title {
    text-align: center;
}

.wdc-table-title p {
    color: #D3D3D9;
    font-size: 2rem !important;
    font-weight: bold;
}

    <div class="wdc-table-menu">
        <ul id="menu_wdc">
            <li><a class="wdc_btn active" href="#">WDC</a></li>
            <li><a class="wdc-btn" href="#">History</a></li>
            <li><a class="wdc-btn" href="#">Components</a></li>
        </ul>
    </div>

Does this answer your question? [How can I change an element's class with JavaScript?](https://stackoverflow.com/questions/195951/how-can-i-change-an-elements-class-with-javascript) — AGE, Feb 15 '22 at 15:44

Youssouf Oumar · Accepted Answer · 2022-08-07T15:09:56.757

You would wanna use JavaScript to achieve this. Like so:

const links =document.querySelectorAll(".wdc-btn ");
links.forEach(btn => btn.addEventListener("click",(e)=>{
     e.preventDefault();
     document.querySelector(".wdc-btn.active").classList.remove("active");
     btn.classList.add("active")
  }));

.wdc-table-menu ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #484A51;
    border-top-right-radius: 0.938rem;
    border-top-left-radius: 0.938rem;
}

.wdc-table-menu li {
    float: left;
}

.wdc-table-menu li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    border-top-right-radius: 0.938rem;
    border-top-left-radius: 0.938rem;
}

.wdc-table-menu li a:hover {
    background-color: #3A3B41;
}

.wdc-table-menu .active {
    background-color: #3A3B41;
}

.wdc-table-title {
    text-align: center;
}

.wdc-table-title p {
    color: #D3D3D9;
    font-size: 2rem !important;
    font-weight: bold;
}

<div class="wdc-table-menu">
        <ul id="menu_wdc">
            <li><a class="wdc-btn active" href="#">WDC</a></li>
            <li><a class="wdc-btn" href="#">History</a></li>
            <li><a class="wdc-btn" href="#">Components</a></li>
        </ul>
    </div>

Arman Ebrahimi · Answer 2 · 2022-02-15T15:53:37.590

You can use pseudo-class :focus. Also an event onclick for remove .active:

function myfunction(){
  document.getElementById("active").classList.remove("active");
}

.wdc-table-menu ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #484A51;
    border-top-right-radius: 0.938rem;
    border-top-left-radius: 0.938rem;
}

.wdc-table-menu li {
    float: left;
}

.wdc-table-menu li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    border-top-right-radius: 0.938rem;
    border-top-left-radius: 0.938rem;
}

.wdc-table-menu li a:hover {
    background-color: #3A3B41;
}
.wdc-table-menu li .active{
    background-color: #ff0000;
}
.wdc-table-menu li a:focus{ /*here*/
    background-color: #ff0000;
}
.wdc-table-title {
    text-align: center;
}
.wdc-table-title p {
    color: #D3D3D9;
    font-size: 2rem !important;
    font-weight: bold;
}

<div class="wdc-table-menu">
        <ul id="menu_wdc" onclick="myfunction()">
            <li><a id="active" class="wdc_btn active" href="#">WDC</a></li>
            <li><a class="wdc-btn" href="#">History</a></li>
            <li><a class="wdc-btn" href="#">Components</a></li>
        </ul>
    </div>

Change active class when a menu item is clicked

2 Answers2