Output:<\/strong><\/p>\n<\/p>\nExample #2<\/h5>\nWe will focus on detecting when someone leaves a radio button unchecked.<\/p>\nCode:<\/strong><\/p>\n\n\n\n\nRequired Attribute\n\n
<\/p>\n
We will focus on detecting when someone leaves a radio button unchecked.<\/p>\n
Code:<\/strong><\/p>\n\n\n\n\nRequired Attribute\n\n
\n\n\n\nRequired Attribute\n\n
![\"HTML](\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543788055476.png\")
<\/p>\n