How do I make menu header turn red one at a time?

Question

0.00/5 (No votes)

See more:

Was recently trying to play around JavaScript until I got stuck here...

I made four menu headers, each of which when clicked turns red, to show that the menu header is "active". The problem however is, I want just one to turn red at a time, instead of all menu headers turning red for every header clicked.

What I have tried:

HTML

<nav id="nav_menu_query_off">
        <menu id="main_menu">
            <li class="main_list_item">
                <div class="menu_header">menu one</div>
                <div class="menu_body">
                    <menu class="sub_menu"></menu>
                    <menu class="sub_menu"></menu>
                    <menu class="sub_menu"></menu>
                </div>
            </li>
            <li class="main_list_item">
                <div class="menu_header">menu two</div>
                <div class="menu_body">
                    <menu class="sub_menu"></menu>
                    <menu class="sub_menu"></menu>
                    <menu class="sub_menu"></menu>
                </div>
            </li>
            <li class="main_list_item">
                <div class="menu_header">menu three</div>
                <div class="menu_body">
                    <menu class="sub_menu"></menu>
                    <menu class="sub_menu"></menu>
                    <menu class="sub_menu"></menu>
                </div>
            </li>
            <li class="main_list_item">
                <div class="menu_header">menu four</div>
                <div class="menu_body">
                    <menu class="sub_menu"></menu>
                    <menu class="sub_menu"></menu>
                    <menu class="sub_menu"></menu>
                </div>
            </li>
        </menu>
    </nav>

CSS

*{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	text-decoration: none;
	list-style: none;
}

body{
	font-family: 'Ebrima';
	background-color: #444444;
}

nav#nav_menu_query_off{
	position: fixed;
	top: 0;
	left: 0;
	width: 200px;
	height: 100vh;
	background-color: #222222;
	overflow: auto;
	z-index: 2;
	padding: 20px 0 20px 20px;
}
nav#nav_menu_query_off menu#main_menu li.main_list_item div.menu_header{
	text-transform: uppercase;
	padding-bottom: 10px;
	cursor: pointer;
}
nav#nav_menu_query_off menu li{
	color: #f0f0f0;
}
nav#nav_menu_query_off menu#main_menu li.main_list_item:not(:first-child){
	padding-top: 20px;
}
.active_red{
	color: red;
}

nav::-webkit-scrollbar{
    display: none;
}

JavaScript

let menuHeader = document.querySelectorAll('div.menu_header');

menuHeader.forEach((head) => {
    head.addEventListener('click', ()=>{
        if (!head.classList.contains('active_red')) {
            head.classList.add('active_red');
        } else {
            head.classList.remove('active_red');
        }
    })
})

Please help me anyone?

Posted 4-Jun-22 9:07am

Skyroxen

Updated 4-Jun-22 10:02am

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Mike Hankey · Answer 1 · 2022-06-04T10:02:00

Solution 1

First turn them all off then turh on the one you clicked

HTML

let menuHeader = document.querySelectorAll('div.menu_header');

menuHeader.forEach((head) => {
    head.addEventListener('click', (e)=>{
		menuHeader.forEach((h) => {
			h.classList.remove('active_red');
		})	
        e.target.classList.add('active_red');
    });
});

Posted 4-Jun-22 10:02am

Mike Hankey

Comments

Skyroxen 7-Jun-22 4:05am

Wow! This works just fine. Except that the now active header when clicked again doesn't turn back to white. Please help me fix this, pleeeeeeaaaaase?
Thank you so very much.

Mike Hankey 7-Jun-22 10:50am

It will return to whatever color the menu item was originally set to.