The data-toggle attributes in Twitter Bootstrap

Question

What does data-toggle attributes do in Twitter Bootstrap? I couldn\'t find an answer in Bootstrap API.

I have seen a similar question before as well, li

Answer 1

So many answers have been given, but they don't get to the point. Let's fix this.

http://www.w3schools.com/bootstrap/bootstrap_ref_js_collapse.asp

To the point

1. Any attribute starting with data- is not parsed by the HTML5 parser.
2. Bootstrap uses the data-toggle attribute to create collapse functionality.

How to use: Only 2 Steps

1. Add class="collapse" to the element #A you want to collapse.
2. Add data-target="#A" and data-toggle="collapse".

Purpose: the data-toggle attribute allows us to create a control to collapse/expand a div (block) if we use Bootstrap.