Collapse Module

Usage

Via data attributes

Just add data-toggle="collapse" and a data-target to element to automatically assign control of a collapsible element. The data-target attribute accepts a css selector to apply the collapse to. Be sure to add the class collapse to 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:

query(".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="".

Nametypedefaultdescription
parentselectorfalseIf selector then all collapsible elements under the specified parent will be closed when this collapsible item is shown. (similar to traditional accordion behavior)
togglebooleantrueToggles the collapsible element on invocation

.collapse(options)

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

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

Methods

MethodDescription
hideHides a collapsible element.
showShows a collapsible element.
toggleToggles a collapsible element to shown or hidden.

Events

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

EventDescription
showThis event fires immediately when the show instance method is called.
shownThis event is fired when a collapse element has been made visible to the user (will wait for css transitions to complete).
hideThis event is fired immediately when the hide method has been called.
hiddenThis event is fired when a collapse element has been hidden from the user (will wait for css transitions to complete).
query('#myCollapsible').on('hidden', function () {
  // do something…
})

Example

Using the collapse plugin, we built a simple accordion style widget:

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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.
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.