Overview

individual or compiled

Plugins can be included individually (using Bootstrap's individual *.jsfiles), or all at once (using bootstrap.jsor the minified bootstrap.min.js).

data attributes

You can use all Bootstrap plugins purely through the markup API without writing a single line of JavaScript. This is Bootstrap's first-class API and should be your first consideration when using a plugin.

That said, in some situations it may be desirable to turn this functionality off. Therefore, we also provide the ability to disable the data attribute API by unbinding all events on the document namespaced with data-api. This looks like this:

$(document).off('.data-api')

alternatively, to target a specific plugin, just include the plugin's name as a namespace along with the data-api namespace like this:

$(document).off('.alert.data-api')

Programmatic API

We also believe you should be able to use all Bootstrap plugins purely through the JavaScript API. All public APIs are single, chainable methods, and return the collection acted upon.

$('.btn.danger').button('toggle').addClass('fat')

All methods should accept an optional options object, a string which targets a particular method, or nothing (which initiates a plugin with default behavior):

$('#myModal').modal()                      // initialized with defaults
$('#myModal').modal({ keyboard: false })   // initialized with no keyboard
$('#myModal').modal('show')                // initializes and invokes show immediately

Each plugin also exposes its raw constructor on a Constructorproperty: $.fn.popover.Constructor. If you'd like to get a particular plugin instance, retrieve it directly from an element: $('[rel="popover"]').data('popover').

default settings

You can change the default settings for a plugin by modifying the plugin's Constructor.DEFAULTSobject:

$.fn.modal.Constructor.DEFAULTS.keyboard = false // changes default for the modal plugin's `keyboard` option to false

No conflict

Sometimes it is necessary to use Bootstrap plugins with other UI frameworks. In these circumstances, namespace collisions can occasionally occur. If this happens, you may call .noConflicton the plugin you wish to revert the value of.

var bootstrapButton = $.fn.button.noConflict() // return $.fn.button to previously assigned value
$.fn.bootstrapBtn = bootstrapButton            // give $().bootstrapBtn the Bootstrap functionality

Events

Bootstrap provides custom events for most plugins' unique actions. Generally, these come in an infinitive and past participle form - where the infinitive (ex. show) is triggered at the start of an event, and its past participle form (ex. shown) is triggered on the completion of an action.

As of 3.0.0, all Bootstrap events are namespaced.

All infinitive events provide preventDefaultfunctionality. This provides the ability to stop the execution of an action before it starts.

$('#myModal').on('show.bs.modal', function (e) {
  if (!data) return e.preventDefault() // stops modal from being shown
})

Version numbers

The version of each of Bootstrap's jQuery plugins can be accessed via the VERSIONproperty of the plugin's constructor. For example, for the tooltip plugin:

$.fn.tooltip.Constructor.VERSION // => "3.3.7"

No special fallbacks when JavaScript is disabled

Bootstrap's plugins don't fall back particularly gracefully when JavaScript is disabled. If you care about the user experience in this case, use <noscript>to explain the situation (and how to re-enable JavaScript) to your users, and/or add your own custom fallbacks.

transition.js _

About transitions

For simple transition effects, include transition.jsonce alongside the other JS files. If you're using the compiled (or minified) bootstrap.js, there is no need to include this—it's already there.

What's inside

Transition.js is a basic helper for transitionEndevents as well as a CSS transition emulator. It's used by the other plugins to check for CSS transition support and to catch hanging transitions.

Disabling transitions

Transitions can be globally disabled using the following JavaScript snippet, which must come after transition.js(or bootstrap.jsor bootstrap.min.js, as the case may be) has loaded:

$.support.transition = false

Modals modal.js

Modals are streamlined, but flexible, dialog prompts with the minimum required functionality and smart defaults.

Due to how HTML5 defines its semantics, the autofocusHTML attribute has no effect in Bootstrap modals. To achieve the same effect, use some custom JavaScript:

$('#myModal').on('shown.bs.modal', function () {
  $('#myInput').focus()
})

Examples

static example

A rendered modal with header, body, and set of actions in the footer.

<div class="modal fade" tabindex="-1" role="dialog">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title">Modal title</h4>
      </div>
      <div class="modal-body">
        <p>One fine body&hellip;</p>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div><!-- /.modal-content -->
  </div><!-- /.modal-dialog -->
</div><!-- /.modal -->

live demo

Toggle a modal via JavaScript by clicking the button below. It will slide down and fade in from the top of the page.

<!-- Button trigger modal -->
<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
  Launch demo modal
</button>

<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="myModalLabel">Modal title</h4>
      </div>
      <div class="modal-body">
        ...
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div>
  </div>
</div>

optional sizes

Modals have two optional sizes, available via modifier classes to be placed on a .modal-dialog.

<!-- Large modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target=".bs-example-modal-lg">Large modal</button>

<div class="modal fade bs-example-modal-lg" tabindex="-1" role="dialog" aria-labelledby="myLargeModalLabel">
  <div class="modal-dialog modal-lg" role="document">
    <div class="modal-content">
      ...
    </div>
  </div>
</div>

<!-- Small modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target=".bs-example-modal-sm">Small modal</button>

<div class="modal fade bs-example-modal-sm" tabindex="-1" role="dialog" aria-labelledby="mySmallModalLabel">
  <div class="modal-dialog modal-sm" role="document">
    <div class="modal-content">
      ...
    </div>
  </div>
</div>

Remove animation

For modals that simply appear rather than fade in to view, remove the .fadeclass from your modal markup.

<div class="modal" tabindex="-1" role="dialog" aria-labelledby="...">
  ...
</div>

Using the grid system

To take advantage of the Bootstrap grid system within a modal, just nest .rows within the .modal-bodyand then use the normal grid system classes.

<div class="modal fade" tabindex="-1" role="dialog" aria-labelledby="gridSystemModalLabel">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="gridSystemModalLabel">Modal title</h4>
      </div>
      <div class="modal-body">
        <div class="row">
          <div class="col-md-4">.col-md-4</div>
          <div class="col-md-4 col-md-offset-4">.col-md-4 .col-md-offset-4</div>
        </div>
        <div class="row">
          <div class="col-md-3 col-md-offset-3">.col-md-3 .col-md-offset-3</div>
          <div class="col-md-2 col-md-offset-4">.col-md-2 .col-md-offset-4</div>
        </div>
        <div class="row">
          <div class="col-md-6 col-md-offset-3">.col-md-6 .col-md-offset-3</div>
        </div>
        <div class="row">
          <div class="col-sm-9">
            Level 1: .col-sm-9
            <div class="row">
              <div class="col-xs-8 col-sm-6">
                Level 2: .col-xs-8 .col-sm-6
              </div>
              <div class="col-xs-4 col-sm-6">
                Level 2: .col-xs-4 .col-sm-6
              </div>
            </div>
          </div>
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div><!-- /.modal-content -->
  </div><!-- /.modal-dialog -->
</div><!-- /.modal -->

Varying modal content based on trigger button

Have a bunch of buttons that all trigger the same modal, just with slightly different contents? Use event.relatedTargetand HTML data-*attributes (possibly via jQuery ) to vary the contents of the modal depending on which button was clicked. See the Modal Events docs for details on relatedTarget.

<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal" data-whatever="@mdo">Open modal for @mdo</button>
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal" data-whatever="@fat">Open modal for @fat</button>
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal" data-whatever="@getbootstrap">Open modal for @getbootstrap</button>
...more buttons...

<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="exampleModalLabel">New message</h4>
      </div>
      <div class="modal-body">
        <form>
          <div class="form-group">
            <label for="recipient-name" class="control-label">Recipient:</label>
            <input type="text" class="form-control" id="recipient-name">
          </div>
          <div class="form-group">
            <label for="message-text" class="control-label">Message:</label>
            <textarea class="form-control" id="message-text"></textarea>
          </div>
        </form>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Send message</button>
      </div>
    </div>
  </div>
</div>

$('#exampleModal').on('show.bs.modal', function (event) {
  var button = $(event.relatedTarget) // Button that triggered the modal
  var recipient = button.data('whatever') // Extract info from data-* attributes
  // If necessary, you could initiate an AJAX request here (and then do the updating in a callback).
  // Update the modal's content. We'll use jQuery here, but you could use a data binding library or other methods instead.
  var modal = $(this)
  modal.find('.modal-title').text('New message to ' + recipient)
  modal.find('.modal-body input').val(recipient)
})

Usage

The modal plugin toggles your hidden content on demand, via data attributes or JavaScript. It also adds .modal-opento the <body>to override default scrolling behavior and generates a .modal-backdropto provide a click area for dismissing shown modals when clicking outside the modal.

Via data attributes

Activate a modal without writing JavaScript. Set data-toggle="modal"on a controller element, like a button, along with a data-target="#foo"or href="#foo"to target a specific modal to toggle.

<button type="button" data-toggle="modal" data-target="#myModal">Launch modal</button>

Via JavaScript

Call a modal with id myModalwith a single line of JavaScript:

$('#myModal').modal(options)

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-backdrop="".

<a data-toggle="modal" href="remote.html" data-target="#modal">Click me</a>

methods

.modal(options)

Activates your content as a modal. Accepts an optional options object.

$('#myModal').modal({
  keyboard: false
})

.modal('toggle')

Manually toggles a modal. Returns to the caller before the modal has actually been shown or hidden (ie before the shown.bs.modalor hidden.bs.modalevent occurs).

$('#myModal').modal('toggle')

.modal('show')

Manually opens a modal. Returns to the caller before the modal has actually been shown (ie before the shown.bs.modalevent occurs).

$('#myModal').modal('show')

.modal('hide')

Manually hides a modal. Returns to the caller before the modal has actually been hidden (ie before the hidden.bs.modalevent occurs).

$('#myModal').modal('hide')

.modal('handleUpdate')

Readjusts the modal's positioning to counter a scrollbar in case one should appear, which would make the modal jump to the left.

Only needed when the height of the modal changes while it is open.

$('#myModal').modal('handleUpdate')

Events

Bootstrap's modal class exposes a few events for hooking into modal functionality.

All modal events are fired at the modal itself (ie at the <div class="modal">).

$('#myModal').on('hidden.bs.modal', function (e) {
  // do something...
})

Dropdowns dropdown.js

Examples

Add dropdown menus to nearly anything with this simple plugin, including the navbar, tabs, and pills.

within a navbar

Within pills

Usage

Via data attributes or JavaScript, the dropdown plugin toggles hidden content (dropdown menus) by toggling the .openclass on the parent list item.

On mobile devices, opening a dropdown adds a .dropdown-backdropas a tap area for closing dropdown menus when tapping outside the menu, a requirement for proper iOS support. This means that switching from an open dropdown menu to a different dropdown menu requires an extra tap on mobile.

Note: The data-toggle="dropdown"attribute is relied on for closing dropdown menus at an application level, so it's a good idea to always use it.

Via data attributes

Add data-toggle="dropdown"to a link or button to toggle a dropdown.

<div class="dropdown">
  <button id="dLabel" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
    Dropdown trigger
    <span class="caret"></span>
  </button>
  <ul class="dropdown-menu" aria-labelledby="dLabel">
    ...
  </ul>
</div>

To keep URLs intact with link buttons, use the data-targetattribute instead of href="#".

<div class="dropdown">
  <a id="dLabel" data-target="#" href="http://example.com/" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
    Dropdown trigger
    <span class="caret"></span>
  </a>

  <ul class="dropdown-menu" aria-labelledby="dLabel">
    ...
  </ul>
</div>

Via JavaScript

Call the dropdowns via JavaScript:

$('.dropdown-toggle').dropdown()

Options

None

methods

$().dropdown('toggle')

Toggles the dropdown menu of a given navbar or tabbed navigation.

Events

All dropdown events are fired at the .dropdown-menu's parent element.

All dropdown events have a relatedTargetproperty, whose value is the toggling anchor element.

$('#myDropdown').on('show.bs.dropdown', function () {
  // do something…
})

scrollspy scrollspy.js

Example in navbar

The ScrollSpy plugin is for automatically updating nav targets based on scroll position. Scroll the area below the navbar and watch the active class change. The dropdown sub items will be highlighted as well.

Usage

Requires relative positioning

No matter the implementation method, scrollspy requires the use of position: relative;on the element you're spying on. In most cases this is the <body>. When scrollspying on elements other than the <body>, be sure to have a heightset and overflow-y: scroll;applied.

Via data attributes

To easily add scrollspy behavior to your topbar navigation, add data-spy="scroll"to the element you want to spy on (most typically this would be the <body>). Then add the data-targetattribute with the ID or class of the parent element of any Bootstrap .navcomponent.

body {
  position: relative;
}

<body data-spy="scroll" data-target="#navbar-example">
  ...
  <div id="navbar-example">
    <ul class="nav nav-tabs" role="tablist">
      ...
    </ul>
  </div>
  ...
</body>

Via JavaScript

After adding position: relative;in your CSS, call the scrollspy via JavaScript:

$('body').scrollspy({ target: '#navbar-example' })

methods

.scrollspy('refresh')

When using scrollspy in conjunction with adding or removing of elements from the DOM, you'll need to call the refresh method like so:

$('[data-spy="scroll"]').each(function () {
  var $spy = $(this).scrollspy('refresh')
})

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-offset="".

Events

$('#myScrollspy').on('activate.bs.scrollspy', function () {
  // do something…
})

Togglable tabs tab.js

Example tabs

Add quick, dynamic tab functionality to transition through panes of local content, even via dropdown menus. Nested tabs are not supported.

Usage

Enable tabbable tabs via JavaScript (each tab needs to be activated individually):

$('#myTabs a').click(function (e) {
  e.preventDefault()
  $(this).tab('show')
})

You can activate individual tabs in several ways:

$('#myTabs a[href="#profile"]').tab('show') // Select tab by name
$('#myTabs a:first').tab('show') // Select first tab
$('#myTabs a:last').tab('show') // Select last tab
$('#myTabs li:eq(2) a').tab('show') // Select third tab (0-indexed)

markup

You can activate a tab or pill navigation without writing any JavaScript by simply specifying data-toggle="tab"or data-toggle="pill"on an element. Adding the navand nav-tabsclasses to the tab ulwill apply the Bootstrap tab styling , while adding the navand nav-pillsclasses will apply pill styling .

<div>

  <!-- Nav tabs -->
  <ul class="nav nav-tabs" role="tablist">
    <li role="presentation" class="active"><a href="#home" aria-controls="home" role="tab" data-toggle="tab">Home</a></li>
    <li role="presentation"><a href="#profile" aria-controls="profile" role="tab" data-toggle="tab">Profile</a></li>
    <li role="presentation"><a href="#messages" aria-controls="messages" role="tab" data-toggle="tab">Messages</a></li>
    <li role="presentation"><a href="#settings" aria-controls="settings" role="tab" data-toggle="tab">Settings</a></li>
  </ul>

  <!-- Tab panes -->
  <div class="tab-content">
    <div role="tabpanel" class="tab-pane active" id="home">...</div>
    <div role="tabpanel" class="tab-pane" id="profile">...</div>
    <div role="tabpanel" class="tab-pane" id="messages">...</div>
    <div role="tabpanel" class="tab-pane" id="settings">...</div>
  </div>

</div>

fade effect

To make tabs fade in, add .fadeto each .tab-pane. The first tab pane must also have .into make the initial content visible.

<div class="tab-content">
  <div role="tabpanel" class="tab-pane fade in active" id="home">...</div>
  <div role="tabpanel" class="tab-pane fade" id="profile">...</div>
  <div role="tabpanel" class="tab-pane fade" id="messages">...</div>
  <div role="tabpanel" class="tab-pane fade" id="settings">...</div>
</div>

methods

$().tab

Activates a tab element and content container. Tab should have either a data-targetor an hreftargeting a container node in the DOM. In the above examples, the tabs are the <a>s with data-toggle="tab"attributes.

.tab('show')

Selects the given tab and shows its associated content. Any other tab that was previously selected becomes unselected and its associated content is hidden. Returns to the caller before the tab pane has actually been shown (ie before the shown.bs.tabevent occurs).

$('#someTab').tab('show')

Events

When showing a new tab, the events fire in the following order:

1. hide.bs.tab(on the current active tab)
2. show.bs.tab(on the to-be-shown tab)
3. hidden.bs.tab(on the previous active tab, the same one as for the hide.bs.tabevent)
4. shown.bs.tab(on the newly-active just-shown tab, the same one as for the show.bs.tabevent)

If no tab was already active, then the hide.bs.taband hidden.bs.tabevents will not be fired.

$('a[data-toggle="tab"]').on('shown.bs.tab', function (e) {
  e.target // newly activated tab
  e.relatedTarget // previous active tab
})

Tooltips tooltip.js

Inspired by the excellent jQuery.tipsy plugin written by Jason Frame; Tooltips are an updated version, which don't rely on images, use CSS3 for animations, and data-attributes for local title storage.

Tooltips with zero-length titles are never displayed.

Examples

Hover over the links below to see tooltips:

Static tooltip

Four options are available: top, right, bottom, and left aligned.

Four directions

<button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="left" title="Tooltip on left">Tooltip on left</button>

<button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="top" title="Tooltip on top">Tooltip on top</button>

<button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Tooltip on bottom">Tooltip on bottom</button>

<button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="right" title="Tooltip on right">Tooltip on right</button>

$(function () {
  $('[data-toggle="tooltip"]').tooltip()
})

Usage

The tooltip plugin generates content and markup on demand, and by default places tooltips after their trigger element.

Trigger the tooltip via JavaScript:

$('#example').tooltip(options)

markup

The required markup for a tooltip is only a dataattribute and titleon the HTML element you wish to have a tooltip. The generated markup of a tooltip is rather simple, though it does require a position (by default, set to topby the plugin).

<!-- HTML to write -->
<a href="#" data-toggle="tooltip" title="Some tooltip text!">Hover over me</a>

<!-- Generated markup by the plugin -->
<div class="tooltip top" role="tooltip">
  <div class="tooltip-arrow"></div>
  <div class="tooltip-inner">
    Some tooltip text!
  </div>
</div>

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-animation="".

methods

$().tooltip(options)

Attaches a tooltip handler to an element collection.

.tooltip('show')

Reveals an element's tooltip. Returns to the caller before the tooltip has actually been shown (ie before the shown.bs.tooltipevent occurs). This is considered a "manual" triggering of the tooltip. Tooltips with zero-length titles are never displayed.

$('#element').tooltip('show')

.tooltip('hide')

Hides an element's tooltip. Returns to the caller before the tooltip has actually been hidden (ie before the hidden.bs.tooltipevent occurs). This is considered a "manual" triggering of the tooltip.

$('#element').tooltip('hide')

.tooltip('toggle')

Toggles an element's tooltip. Returns to the caller before the tooltip has actually been shown or hidden (ie before the shown.bs.tooltipor hidden.bs.tooltipevent occurs). This is considered a "manual" triggering of the tooltip.

$('#element').tooltip('toggle')

.tooltip('destroy')

Hides and destroys an element's tooltip. Tooltips that use delegation (which are created using the selectoroption ) cannot be individually destroyed on descendant trigger elements.

$('#element').tooltip('destroy')

Events

$('#myTooltip').on('hidden.bs.tooltip', function () {
  // do something…
})

popovers popover.js

Add small overlays of content, like those on the iPad, to any element for housing secondary information.

Popovers whose both title and content are zero-length are never displayed.

$(function () {
  $('[data-toggle="popover"]').popover()
})

Examples

static popover

Four options are available: top, right, bottom, and left aligned.

live demo

<button type="button" class="btn btn-lg btn-danger" data-toggle="popover" title="Popover title" data-content="And here's some amazing content. It's very engaging. Right?">Click to toggle popover</button>

Four directions

<button type="button" class="btn btn-default" data-container="body" data-toggle="popover" data-placement="left" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus.">
  Popover on left
</button>

<button type="button" class="btn btn-default" data-container="body" data-toggle="popover" data-placement="top" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus.">
  Popover on top
</button>

<button type="button" class="btn btn-default" data-container="body" data-toggle="popover" data-placement="bottom" data-content="Vivamus
sagittis lacus vel augue laoreet rutrum faucibus.">
  Popover on bottom
</button>

<button type="button" class="btn btn-default" data-container="body" data-toggle="popover" data-placement="right" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus.">
  Popover on right
</button>

Dismiss on next click

Use the focustrigger to dismiss popovers on the next click that the user makes.

<a tabindex="0" class="btn btn-lg btn-danger" role="button" data-toggle="popover" data-trigger="focus" title="Dismissible popover" data-content="And here's some amazing content. It's very engaging. Right?">Dismissible popover</a>

Usage

Enable popovers via JavaScript:

$('#example').popover(options)

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-animation="".

methods

$().popover(options)

Initializes popovers for an element collection.

.popover('show')

Reveals an element's popover. Returns to the caller before the popover has actually been shown (ie before the shown.bs.popoverevent occurs). This is considered a "manual" triggering of the popover. Popovers whose both title and content are zero-length are never displayed.

$('#element').popover('show')

.popover('hide')

Hides an element's popover. Returns to the caller before the popover has actually been hidden (ie before the hidden.bs.popoverevent occurs). This is considered a "manual" triggering of the popover.

$('#element').popover('hide')

.popover('toggle')

Toggles an element's popover. Returns to the caller before the popover has actually been shown or hidden (ie before the shown.bs.popoveror hidden.bs.popoverevent occurs). This is considered a "manual" triggering of the popover.

$('#element').popover('toggle')

.popover('destroy')

Hides and destroys an element's popover. Popovers that use delegation (which are created using the selectoroption ) cannot be individually destroyed on descendant trigger elements.

$('#element').popover('destroy')

Events

$('#myPopover').on('hidden.bs.popover', function () {
  // do something…
})

Alert messages alert.js

Example alerts

Add dismiss functionality to all alert messages with this plugin.

When using a .closebutton, it must be the first child of the .alert-dismissibleand no text content may come before it in the markup.

Usage

Just add data-dismiss="alert"to your close button to automatically give an alert close functionality. Closing an alert removes it from the DOM.

<button type="button" class="close" data-dismiss="alert" aria-label="Close">
  <span aria-hidden="true">&times;</span>
</button>

To have your alerts use animation when closing, make sure they have the .fadeand .inclasses already applied to them.

methods

$().alert()

Makes an alert listen for click events on descendant elements which have the data-dismiss="alert"attribute. (Not necessary when using the data-api's auto-initialization.)

$().alert('close')

Closes an alert by removing it from the DOM. If the .fadeand .inclasses are present on the element, the alert will fade out before it is removed.

Events

Bootstrap's alert plugin exposes a few events for hooking into alert functionality.

$('#myAlert').on('closed.bs.alert', function () {
  // do something…
})

Buttons button.js

Do more with buttons. Control button states or create groups of buttons for more components like toolbars.

Stateful

Add data-loading-text="Loading..."to use a loading state on a button.

This feature has been deprecated since v3.3.5 and has been removed in v4.

<button type="button" id="myButton" data-loading-text="Loading..." class="btn btn-primary" autocomplete="off">
  Loading state
</button>

<script>
  $('#myButton').on('click', function () {
    var $btn = $(this).button('loading')
    // business logic...
    $btn.button('reset')
  })
</script>

single toggle

Add data-toggle="button"to activate toggling on a single button.

<button type="button" class="btn btn-primary" data-toggle="button" aria-pressed="false" autocomplete="off">
  Single toggle
</button>

Checkbox / Radio

Add data-toggle="buttons"to a .btn-groupcontaining checkbox or radio inputs to enable toggling in their respective styles.

<div class="btn-group" data-toggle="buttons">
  <label class="btn btn-primary active">
    <input type="checkbox" autocomplete="off" checked> Checkbox 1 (pre-checked)
  </label>
  <label class="btn btn-primary">
    <input type="checkbox" autocomplete="off"> Checkbox 2
  </label>
  <label class="btn btn-primary">
    <input type="checkbox" autocomplete="off"> Checkbox 3
  </label>
</div>

<div class="btn-group" data-toggle="buttons">
  <label class="btn btn-primary active">
    <input type="radio" name="options" id="option1" autocomplete="off" checked> Radio 1 (preselected)
  </label>
  <label class="btn btn-primary">
    <input type="radio" name="options" id="option2" autocomplete="off"> Radio 2
  </label>
  <label class="btn btn-primary">
    <input type="radio" name="options" id="option3" autocomplete="off"> Radio 3
  </label>
</div>

methods

$().button('toggle')

Toggles push state. Gives the button the appearance that it has been activated.

$().button('reset')

Resets button state - swaps text to original text. This method is asynchronous and returns before the resetting has actually completed.

$().button(string)

Swaps text to any data defined text state.

<button type="button" id="myStateButton" data-complete-text="finished!" class="btn btn-primary" autocomplete="off">
  ...
</button>

<script>
  $('#myStateButton').on('click', function () {
    $(this).button('complete') // button text will be "finished!"
  })
</script>

collapse.js _

Flexible plugin that utilizes a handful of classes for easy toggle behavior.

example

Click the buttons below to show and hide another element via class changes:

• .collapsehides content
• .collapsingis applied during transitions
• .collapse.inshow content

You can use a link with the hrefattribute, or a button with the data-targetattribute. In both cases, the data-toggle="collapse"is required.

<a class="btn btn-primary" role="button" data-toggle="collapse" href="#collapseExample" aria-expanded="false" aria-controls="collapseExample">
  Link with href
</a>
<button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#collapseExample" aria-expanded="false" aria-controls="collapseExample">
  Button with data-target
</button>
<div class="collapse" id="collapseExample">
  <div class="well">
    ...
  </div>
</div>

accordion example

Extend the default collapse behavior to create an accordion with the panel component.

<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
  <div class="panel panel-default">
    <div class="panel-heading" role="tab" id="headingOne">
      <h4 class="panel-title">
        <a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
          Collapsible Group Item #1
        </a>
      </h4>
    </div>
    <div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
  <div class="panel panel-default">
    <div class="panel-heading" role="tab" id="headingTwo">
      <h4 class="panel-title">
        <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
          Collapsible Group Item #2
        </a>
      </h4>
    </div>
    <div id="collapseTwo" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingTwo">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
  <div class="panel panel-default">
    <div class="panel-heading" role="tab" id="headingThree">
      <h4 class="panel-title">
        <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
          Collapsible Group Item #3
        </a>
      </h4>
    </div>
    <div id="collapseThree" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingThree">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
</div>

It's also possible to swap out .panel-bodys with .list-groups.

Usage

The collapse plugin utilizes a few classes to handle the heavy lifting:

• .collapsehides the content
• .collapse.inshows the content
• .collapsingis added when the transition starts, and removed when it finishes

These classes can be found in component-animations.less.

Via data attributes

Just add data-toggle="collapse"and a data-targetto the element to automatically assign control of a collapsible element. The data-targetattribute accepts a CSS selector to apply the collapse to. Be sure to add the class collapseto the collapsible element. If you'd like it to default open, add the additional class in.

To add accordion-like group management to a collapsible control, add the data attribute data-parent="#selector". Refer to the demo to see this in action.

Via JavaScript

Enable manually with:

$('.collapse').collapse()

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-parent="".

methods

.collapse(options)

Activates your content as a collapsible element. Accepts an optional options object.

$('#myCollapsible').collapse({
  toggle: false
})

.collapse('toggle')

Toggles a collapsible element to shown or hidden. Returns to the caller before the collapsible element has actually been shown or hidden (ie before the shown.bs.collapseor hidden.bs.collapseevent occurs).

.collapse('show')

Shows a collapsible element. Returns to the caller before the collapsible element has actually been shown (ie before the shown.bs.collapseevent occurs).

.collapse('hide')

Hides a collapsible element. Returns to the caller before the collapsible element has actually been hidden (ie before the hidden.bs.collapseevent occurs).

Events

Bootstrap's collapse class exposes a few events for hooking into collapse functionality.

$('#myCollapsible').on('hidden.bs.collapse', function () {
  // do something…
})

carousel carousel.js

A slideshow component for cycling through elements, like a carousel. Nested carousels are not supported.

Examples

Previous Next

<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
  <!-- Indicators -->
  <ol class="carousel-indicators">
    <li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
    <li data-target="#carousel-example-generic" data-slide-to="1"></li>
    <li data-target="#carousel-example-generic" data-slide-to="2"></li>
  </ol>

  <!-- Wrapper for slides -->
  <div class="carousel-inner" role="listbox">
    <div class="item active">
      <img src="..." alt="...">
      <div class="carousel-caption">
        ...
      </div>
    </div>
    <div class="item">
      <img src="..." alt="...">
      <div class="carousel-caption">
        ...
      </div>
    </div>
    ...
  </div>

  <!-- Controls -->
  <a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
    <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
    <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

optional captions

Add captions to your slides easily with the .carousel-captionelement within any .item. Place just about any optional HTML within there and it will be automatically aligned and formatted.

first slide label

Nulla vitae elit libero, a pharetra augue mollis interdum.

second slide label

Lorem ipsum dolor sit amet, consectetur adipiscing elit.

third slide label

Praesent commodo cursus magna, vel scelerisque nisl consectetur.

Previous Next

<div class="item">
  <img src="..." alt="...">
  <div class="carousel-caption">
    <h3>...</h3>
    <p>...</p>
  </div>
</div>

Usage

Multiple carousels

Carousels require the use of an idon the outermost container (the .carousel) for carousel controls to function properly. When adding multiple carousels, or when changing a carousel's id, be sure to update the relevant controls.

Via data attributes

Use data attributes to easily control the position of the carousel. data-slideaccepts the keywords prevor next, which alters the slide position relative to its current position. Alternatively, use data-slide-toto pass a raw slide index to the carousel data-slide-to="2", which shifts the slide position to a particular index beginning with0 .

The data-ride="carousel"attribute is used to mark a carousel as animating starting at page load. It cannot be used in combination with (redundant and unnecessary) explicit JavaScript initialization of the same carousel.

Via JavaScript

Call carousel manually with:

$('.carousel').carousel()

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-interval="".

methods

.carousel(options)

Initializes the carousel with an optional options objectand starts cycling through items.

$('.carousel').carousel({
  interval: 2000
})

.carousel('cycle')

Cycles through the carousel items from left to right.

.carousel('pause')

Stops the carousel from cycling through items.

.carousel(number)

Cycles the carousel to a particular frame (0 based, similar to an array).

.carousel('prev')

Cycles to the previous item.

.carousel('next')

Cycles to the next item.

Events

Bootstrap's carousel class exposes two events for hooking into carousel functionality.

Both events have the following additional properties:

• direction: The direction in which the carousel is sliding (either "left"or "right").
• relatedTarget: The DOM element that is being slid into place as the active item.

All carousel events are fired at the carousel itself (ie at the <div class="carousel">).

$('#myCarousel').on('slide.bs.carousel', function () {
  // do something…
})

affix affix.js

example

The affix plugin toggles position: fixed;on and off, emulating the effect found with position: sticky;. The subnavigation on the right is a live demo of the affix plugin.

Usage

Use the affix plugin via data attributes or manually with your own JavaScript. In both situations, you must provide CSS for the positioning and width of your affixed content.

Note: Do not use the affix plugin on an element contained in a relatively positioned element, such as a pulled or pushed column, due to a Safari rendering bug .

Positioning via CSS

The affix plugin toggles between three classes, each representing a particular state: .affix, .affix-top, and .affix-bottom. You must provide the styles, with the exception of position: fixed;on .affix, for these classes yourself (independent of this plugin) to handle the actual positions.

Here's how the affix plugin works:

1. To start, the plugin adds.affix-top to indicate the element is in its top-most position. At this point no CSS positioning is required.
2. Scrolling past the element you want affixed should trigger the actual affixing. This is where .affixreplaces .affix-topand sets position: fixed;(provided by Bootstrap's CSS).
3. If a bottom offset is defined, scrolling past it should replace .affixwith .affix-bottom. Since offsets are optional, setting one requires you to set the appropriate CSS. In this case, add position: absolute;when necessary. The plugin uses the data attribute or JavaScript option to determine where to position the element from there.

Follow the above steps to set your CSS for either of the usage options below.

Via data attributes

To easily add affix behavior to any element, just add data-spy="affix"to the element you want to spy on. Use offsets to define when to toggle the pinning of an element.

<div data-spy="affix" data-offset-top="60" data-offset-bottom="200">
  ...
</div>

Via JavaScript

Call the affix plugin via JavaScript:

$('#myAffix').affix({
  offset: {
    top: 100,
    bottom: function () {
      return (this.bottom = $('.footer').outerHeight(true))
    }
  }
})

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-offset-top="200".

methods

.affix(options)

Activates your content as affixed content. Accepts an optional options object.

$('#myAffix').affix({
  offset: 15
})

.affix('checkPosition')

Recalculates the state of the affix based on the dimensions, position, and scroll position of the relevant elements. The .affix, .affix-top, and .affix-bottomclasses are added to or removed from the affixed content according to the new state. This method needs to be called whenever the dimensions of the affixed content or the target element are changed, to ensure correct positioning of the affixed content.

$('#myAffix').affix('checkPosition')

Events

Bootstrap's affix plugin exposes a few events for hooking into affix functionality.