How to Create Custom Accordion Expand, Collapse and Toggle Section in Lightning Component

Hey guys, today in this post we are going to learn about how to create a custom accordion Expand Collapse and Toggle section using JavaScript in Salesforce lightning component.
Files we used in this post example:-
customAccordionApp.app
Lightning Application
It is used for call the component to preview on browser.
customAccordionCmp.cmp
Lightning Component
It is used for create a accordion list item section.
customAccordionCmpcontroller.js
Lightning Component Controller
It is used for click functionality that is Expand Collapse and Toggle section in Lightning component.
customAccordionCmp.CSS
Component Style CSS
It is used for create custom Style CSS for Expandable/Collapsible & Toggle (Accordion) section.
Final Output

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Step 1:- Create Lightning Application : customAccordionApp.app
From Developer Console >> File >> New >> Lightning Application
customAccordionApp.app [Component Application File]
Step 2:- Create Lightning Component : customAccordionCmp.cmp
From Developer Console >> File >> New >> Lightning Component
customAccordionCmp.cmp [Lightning Component File]
Step 3:- Create Lightning Component : customAccordionCmpcontroller.js
From Developer Console >> File >> New >> Lightning Component >> JavaScript Controller
customAccordionCmpcontroller.js [JavaScript Controller]
Step 4:- Create Lightning Component Style: customAccordionCmp.CSS
From Developer Console >> File >> New >> Lightning Component >> Component Style CSS
customAccordionCmp.CSS [Style CSS]

Originally published at https://www.w3web.net on August 22, 2020.