Navbar dropdown (collapse) is not working in Bootstrap 5

javascript html css twitter-bootstrap bootstrap-5
Sonet Adhikary picture Sonet Adhikary · Dec 17, 2020 · Viewed 25.2k times · Source

I am facing a issue when trying to create a responsive menu or dropdown button with Bootstrap 5.Everything seems ok.The navigation icon & dropdown icon apears.But its not working.When I clicked the nav icon or dropdown button,no dropdown menu apears.

I want to specially mention that I also included the jquery file. But it didn't work. Can anyone please tell me what is happening here?

One last thing,I faced severel issues with some others bootstrap classes like mr-auto,ml-auto etc.Is it any bug or new classes come with bootstrap 5 for this kind of job?

Here is my code:

Answer

Zim picture Zim · Dec 17, 2020

The data-* attributes used in Bootstrap 4 have been replaced with data-bs-* in Bootstrap 5

<button class="navbar-toggler" data-bs-toggle="collapse" data-bs-target="#navbar">
    <span class="navbar-toggler-icon"></span>
</button>

Demo

As explained in the docs, data attributes for all JavaScript plugins are now namespaced to help distinguish Bootstrap functionality from third parties and your own code. This mean any javascript components (Collapse, Navbar, Carousel, Dropdown, Tabs, Modal, etc..) will only work using data-bs-... attributes.

Bootstrap 5 is a major update with breaking changes. Also see here that ml-auto/mr-auto have changed to ms-auto/me-auto.

Related questions

How to hide element using Twitter Bootstrap and show it using jQuery?

Let's say I create an HTML element like this, <div id="my-div" class="hidden">Hello, TB3</div> <div id="my-div" class="hide">Hello, TB4</div> <div id="my-div" class="d-none">…

Read More
Bootstrap Dropdown with Hover

OK, so what I need is fairly straightforward. I have set up a navbar with some dropdown menus in it (using class="dropdown-toggle" data-toggle="dropdown"), and it works fine. The thing is it works "onClick", while I would prefer if …

Read More
How to create a responsive image that also scales up in Bootstrap 3

I am currently using twitter bootstrap 3 and I am facing a problem to create a responsive image. I have used img-responsive class. But the image size is not scaling up. If I use width:100% instead of max-width:100% then it works …

Read More