Simple jQuery accordion widget

Usage

In order the accordion to work it must have certain structure with 4 necessary elements:

<ul class="js-accordion" data-singlemode="true"> <!-- Accordion itself -->
	<li class="js-accordion-item collapsed"> <!-- One or more collapsible accordion items -->
		<a href="" class="js-accordion-button">...</a> <!-- Accordion toggle button -->
		<div class="js-accordion-body">...</div> <!-- Collapsible content -->
	</li>
	<li class="js-accordion-item expanded">...</li>
</ul>

By default all classes are named like js-accordion-*, but you are free to name them whatever you want. You can change them in Accordion.config object. data-singlemode attribute indicates that only one item can be showed at a time. Also accordions can be nested, i.e. items could contain other accordions.

Accordion.config options

Property name	Description	Default value
classAccordion	Class name of accordion	"js-accordion"
classItem	Class name of item	"js-accordion-item"
classButton	Class name of toggle button	"js-accordion-button"
classBody	Class name of body	"js-accordion-body"
classExpanded	Class name of expanded item	"expanded"
classCollapsed	Class name of collapsed item	"collapsed"

Also this script brings up with two events: accordion:beforeToggle and accordion:afterToggle which fire on items. After everything is setup, call call Accordion.init() function. That's all!

Simple script example

$($e => {
	Accordion.config.classButton = "js-accordion-toggle";
	Accordion.init();
	$("." + Accordion.config.classItem).on("accordion:beforeToggle", $e => console.log("Item before toggling"));
	$("." + Accordion.config.classItem).on("accordion:afterToggle", $e => console.log("Item after toggling"));
});