radio button optional code example
Example 1: radio selected
//checked
<input type="radio" id="huey" name="drone" value="huey"
checked>
Example 2: radio input value
<input type="radio" name="test" id="test" value="this is the value">
//checked
<input type="radio" id="huey" name="drone" value="huey"
checked>
<input type="radio" name="test" id="test" value="this is the value">