Bootstrap: set initial radio button checked in HTML

Question

I\'m using Bootstrap\'s JavaScript buttons to style some radio buttons, and I don\'t seem to be able to set an initial button as checked.

Here is my code:

Answer 1

If you're using the HTML 5 doctype, just use checked without any value:

    Three numbers

checked="checked" should work as well, so you'll have to clarify what's not working for you.

• Having a checked attribute on the input will ensure correct state on the form field
• Adding an active class on the label will set the correct visual state

Reference documentation.