How Can I Dynamically Add Active Navigation Classes to My Website Menu Using JavaScript?

Add Dynamic Active Navigation Classes to Menus

When navigating a web page, it's common to highlight the active menu item corresponding to the current page. This improves user experience by providing visual cues for the current location within the site hierarchy.

To implement this functionality, we'll utilize JavaScript to identify the current URL and add an "active" class to the appropriate menu item.

How to Add Active Navigation Class Using JavaScript

Let's examine a solution using jQuery's powerful library:

$(function () {
    var current = location.pathname;
    $('#nav li a').each(function () {
        var $this = $(this);
        if ($this.attr('href').indexOf(current) !== -1) {
            $this.addClass('active');
        }
    });
});

Explanation:

• When the document is ready, the script initializes.
• The location.pathname property retrieves the current page's path.
• It iterates through each menu item's anchor tags ($('#nav li a')).
• For each anchor tag, it checks if its href attribute contains the current path using the indexOf() function.
• If it finds a match, the corresponding anchor tag is assigned the "active" class.

Important Note:

If the menu contains multiple links pointing to the same page, this approach may not accurately determine the active item. In such scenarios, additional logic may be required to handle these cases.

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