JavaScript

JavaScript opcionales creados en jQuery. Obtenga información sobre cada complemento, nuestros datos y opciones de API programáticas, y más.

Individual o compilado

Los complementos se pueden incluir individualmente (usando Bootstrap individual js/dist/*.js ), o todos a la vez usando bootstrap.js o el minificado bootstrap.min.js (no incluya ambos).

Si usa un paquete (Webpack, Rollup…), puede usar /js/dist/*.js archivos que estén listos para UMD.

Dependencias

Algunos complementos y componentes CSS dependen de otros complementos. Si incluye plugins individualmente, asegúrese de comprobar si existen estas dependencias en los documentos. También tenga en cuenta que todos los complementos dependen de jQuery (esto significa que jQuery debe incluirse antes de los archivos del complemento). Consulte nuestro package.json para ver qué versiones de jQuery son compatibles.

Nuestros menús desplegables, ventanas emergentes e información sobre herramientas también dependen de Popper.js .

Atributos de datos

Casi todos los complementos de Bootstrap se pueden habilitar y configurar a través de HTML solo con atributos de datos (nuestra forma preferida de usar la funcionalidad de JavaScript). Asegúrese de usar solo un conjunto de atributos de datos en un solo elemento (por ejemplo, no puede activar una información sobre herramientas y un modal desde el mismo botón).

However, in some situations it may be desirable to disable this functionality. To disable the data attribute API, unbind all events on the document namespaced with data-api like so:

$(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')

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.

All infinitive events provide preventDefault() functionality. This provides the ability to stop the execution of an action before it starts. Returning false from an event handler will also automatically call preventDefault().

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

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')

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.

$('#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 Constructor property: $.fn.popover.Constructor. If you’d like to get a particular plugin instance, retrieve it directly from an element: $('[rel="popover"]').data('popover').

Asynchronous functions and transitions

All programmatic API methods are asynchronous and return to the caller once the transition is started but before it ends.

In order to execute an action once the transition is complete, you can listen to the corresponding event.

$('#myCollapse').on('shown.bs.collapse', function (e) {
  // Action to execute once the collapsible area is expanded
})

In addition a method call on a transitioning component will be ignored.

$('#myCarousel').on('slid.bs.carousel', function (e) {
  $('#myCarousel').carousel('2') // Will slide to the slide 2 as soon as the transition to slide 1 is finished
})

$('#myCarousel').carousel('1') // Will start sliding to the slide 1 and returns to the caller
$('#myCarousel').carousel('2') // !! Will be ignored, as the transition to the slide 1 is not finished !!

Default settings

You can change the default settings for a plugin by modifying the plugin’s Constructor.Default object:

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

Version numbers

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

$.fn.tooltip.Constructor.VERSION // => "4.5.3"

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.

Util

All Bootstrap’s JavaScript files depend on util.js and it has to be included alongside the other JavaScript files. If you’re using the compiled (or minified) bootstrap.js, there is no need to include this—it’s already there.

util.js incluye funciones de utilidad y un ayudante básico para transitionEnd eventos, así como un emulador de transición CSS. Los otros complementos lo utilizan para verificar el soporte de transición CSS y para detectar transiciones colgantes.

Desinfectante

La información sobre herramientas y las ventanas emergentes utilizan nuestro desinfectante integrado para desinfectar las opciones que aceptan HTML.

El whiteList valor predeterminado es el siguiente:

var ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i
var DefaultWhitelist = {
  // Global attributes allowed on any supplied element below.
  '*': ['class', 'dir', 'id', 'lang', 'role', ARIA_ATTRIBUTE_PATTERN],
  a: ['target', 'href', 'title', 'rel'],
  area: [],
  b: [],
  br: [],
  col: [],
  code: [],
  div: [],
  em: [],
  hr: [],
  h1: [],
  h2: [],
  h3: [],
  h4: [],
  h5: [],
  h6: [],
  i: [],
  img: ['src', 'srcset', 'alt', 'title', 'width', 'height'],
  li: [],
  ol: [],
  p: [],
  pre: [],
  s: [],
  small: [],
  span: [],
  sub: [],
  sup: [],
  strong: [],
  u: [],
  ul: []
}

Si desea agregar nuevos valores a este valor predeterminado whiteList , puede hacer lo siguiente:

var myDefaultWhiteList = $.fn.tooltip.Constructor.Default.whiteList

// To allow table elements
myDefaultWhiteList.table = []

// To allow td elements and data-option attributes on td elements
myDefaultWhiteList.td = ['data-option']

// You can push your custom regex to validate your attributes.
// Be careful about your regular expressions being too lax
var myCustomRegex = /^data-my-app-[\w-]+/
myDefaultWhiteList['*'].push(myCustomRegex)

Si desea omitir nuestro desinfectante porque prefiere usar una biblioteca dedicada, por ejemplo DOMPurify , debe hacer lo siguiente:

$('#yourTooltip').tooltip({
  sanitizeFn: function (content) {
    return DOMPurify.sanitize(content)
  }
})