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Getting all sibling elements when a link or button is clicked with vanilla JS

Last week in the private Slack channel that comes with any of my pocket guides, one of my students asked how to get a navigation link’s siblings when it’s clicked.

For example, imagine you have a nav menu that looks like this.

	<li><a class="nav-link" href="#1">Link 1</a></li>
	<li><a class="nav-link" href="#2">Link 2</a></li>
	<li><a class="nav-link" href="#3">Link 3</a></li>
	<li><a class="nav-link" href="#4">Link 4</a></li>
	<li><a class="nav-link" href="#5">Link 5</a></li>

Whenever someone clicks a link in that menu, you want to give that link an .active class, and also remove the .active class from any other link that might have it.

Here’s how that would work.

// Listen for all clicks on the document
document.addEventListener('click', function () {

	// Bail if it's not a .nav-link
	if (!'nav-link')) return;

	// Add the active class'active');

	// Get all nav links
	var links = document.querySelectorAll('.nav-link');

	// Loop through each link
	for (var i = 0; i < links.length; i++) {

		// If the link is the one clicked, skip it
		if (links[i] === continue;

		// Remove the .active class


}, false);

We’re listening to all clicks on the document, a technique known as event bubbling. If the clicked element ( doesn’t have the .nav-link class, we bail.

Otherwise, use the classList API to add our .active class.

Next, we get every link with the .nav-link class and loop through them with a for loop. If the current link in the loop is our (which we can compare with ===), we’ll use continue to skip to the next item in the loop.

Otherwise, we remove the .active class.

Naturally, you can adapt this for whatever your use case. The core parts here are:

  1. Get all links or buttons with the appropriate selector.
  2. Compare them to
  3. If they’re not a match, they’re a sibling element and you can manipulate them as needed.