- Button to check / uncheck checkboxes group
- Input validation of form control
- Cover the entire screen with an overlay when form submitting
- Convert date control to
<input type=text> - Show preview with
<input type=file> - ISBN input field
- Automatically adjust the block size dimension of the
<textarea>element to the input content
- Prevent page unloaded while filling out a form
- Display a
confirm()modal dialog when button is pressed