Ways to eliminate class from HTML code

Question

Ways to eliminate class from HTML code

Trying to detect if a navigational element has a specific class upon click. If it has the class, remove it; if not, add it.

The goal is to display an active state on the dropdown button while the dropdown is open. The active state should be removed when another nav element is clicked or something outside the dropdown menu is clicked. This logic is currently working as intended.

However, there is an issue with removing the active state if the same button is clicked again. Currently, this functionality is not working. The first condition in the if statement never executes, causing the class to always toggle.

JS:

  $(document).ready(function () {

    //WORKS
    $(document).click(function () {
        $('.link.activeLink').removeClass('activeLink')
    });

    //WORKS
    $('.nav-link').click(function () {
        $('.link.activeLink').removeClass('activeLink')
    });

    //FAILS
    $('.link').click(function () {
        if ($(this).hasClass('activeLink')) {
            $(this).removeClass('activeLink');
        }
        else {
            $(this).toggleClass('activeLink');
        }
    }); 

});

CSS:

.activeLink {
    background-color: #31A7DF;
}

HTML:

  <a class="nav-link link dropdown-toggle text-white paddingRightButton h-100 noPaddingRightLeft" href="#" data-toggle="dropdown" id="flatRoofingDropdown" role="button" aria-haspopup="true" aria-expanded="false">
                            Flat Roofing
                        </a>

javascript html jquery css

Answer 1

Answer №1

To switch between classes, simply employ the method .toggleClass(). This function will check if a class is present and remove it, or add it if it's not already there. Your final implementation should resemble this:

$('.link').click(function() {
  $(this).toggleClass('activeLink');
}

The snippet above is the only thing required to manage class toggling in jQuery. :)

Answer 2

To switch between classes, simply employ the method .toggleClass(). This function will check if a class is present and remove it, or add it if it's not already there. Your final implementation should resemble this:

$('.link').click(function() {
  $(this).toggleClass('activeLink');
}

The snippet above is the only thing required to manage class toggling in jQuery. :)

Answer 3

Answer №2

It seems to me that the if-statement is unnecessary in this case. Based on jQuery documentation, toggleClass can handle this task for you effectively. Check out this example here which demonstrates how it accomplishes what you're aiming for.

Answer 4

It seems to me that the if-statement is unnecessary in this case. Based on jQuery documentation, toggleClass can handle this task for you effectively. Check out this example here which demonstrates how it accomplishes what you're aiming for.

Answer 5

Answer №3

There is no necessity to include the hasClass logic with toggleClass(), as toggleClass(className) handles it for you.

If className is not present, it performs the same action as addClass(className)
If className is present, it performs the same action as removeClass(className)

For more information, visit: api.jquery.com/toggleclass/

Give this a try:

<a class="link activeLink">link 1</a>
<a class="link">link 2</a>

$('.link').click(function () {
  $(this).toggleClass('activeLink');
});

// When link 1 is clicked:
// <a class="link">link 1</a>

// When link 2 is clicked:
// <a class="link activeLink">link 2</a>

Answer 6

There is no necessity to include the hasClass logic with toggleClass(), as toggleClass(className) handles it for you.

If className is not present, it performs the same action as addClass(className)
If className is present, it performs the same action as removeClass(className)

For more information, visit: api.jquery.com/toggleclass/

Give this a try:

<a class="link activeLink">link 1</a>
<a class="link">link 2</a>

$('.link').click(function () {
  $(this).toggleClass('activeLink');
});

// When link 1 is clicked:
// <a class="link">link 1</a>

// When link 2 is clicked:
// <a class="link activeLink">link 2</a>

Answer 7

Answer №4

In this scenario, event propagation is key. Every click on the link triggers a click on the document since .link is nested within document.

The following code snippet accomplishes the task at hand. It toggles the class when the link is clicked and removes the class when anything other than the link is clicked.

$(document).ready(function() {

  $('#flatRoofingDropdown').click(function(event) {
    $(this).toggleClass('activeLink');
  });
  
  $(document).click(function(event) {
  if (!$(event.target).closest('#flatRoofingDropdown').length) {
    $('#flatRoofingDropdown').removeClass('activeLink');
  }
});

});

.activeLink {
  background-color: #31A7DF;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<a class="nav-link link dropdown-toggle text-white paddingRightButton h-100 noPaddingRightLeft" href="#" data-toggle="dropdown" id="flatRoofingDropdown" role="button" aria-haspopup="true" aria-expanded="false">
  Flat Roofing
</a>

Answer 8

In this scenario, event propagation is key. Every click on the link triggers a click on the document since .link is nested within document.

The following code snippet accomplishes the task at hand. It toggles the class when the link is clicked and removes the class when anything other than the link is clicked.

$(document).ready(function() {

  $('#flatRoofingDropdown').click(function(event) {
    $(this).toggleClass('activeLink');
  });
  
  $(document).click(function(event) {
  if (!$(event.target).closest('#flatRoofingDropdown').length) {
    $('#flatRoofingDropdown').removeClass('activeLink');
  }
});

});

.activeLink {
  background-color: #31A7DF;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<a class="nav-link link dropdown-toggle text-white paddingRightButton h-100 noPaddingRightLeft" href="#" data-toggle="dropdown" id="flatRoofingDropdown" role="button" aria-haspopup="true" aria-expanded="false">
  Flat Roofing
</a>

Answer 9

Answer №5

It looks like the solution to my problem has been found

    $(document).ready(function () {
    $(document).click(function (e) {
        $('.link.activeLink').removeClass('activeLink')
    });

    $('.link').click(function (e) {
        if ($(e.target).hasClass('activeLink')) {
            $(this).removeClass('activeLink');
        } else {
            $('.link.activeLink').removeClass('activeLink')
            $(this).toggleClass('activeLink');
        }         
    });
});

Answer 10

It looks like the solution to my problem has been found

    $(document).ready(function () {
    $(document).click(function (e) {
        $('.link.activeLink').removeClass('activeLink')
    });

    $('.link').click(function (e) {
        if ($(e.target).hasClass('activeLink')) {
            $(this).removeClass('activeLink');
        } else {
            $('.link.activeLink').removeClass('activeLink')
            $(this).toggleClass('activeLink');
        }         
    });
});

Ways to eliminate class from HTML code

Answer №1

Answer №2

Answer №3

Give this a try:

Answer №4

Answer №5

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