Is there a minlength validation attribute in HTML5?

Question

It seems the minlength attribute for an field doesn\'t work.

Is there any other attribute in HTML5 with the help of which I

Answer 1

If desired to make this behavior, always show a small prefix on the input field or the user can't erase a prefix:

   // prefix="prefix_text"
   // If the user changes the prefix, restore the input with the prefix:
   if(document.getElementById('myInput').value.substring(0,prefix.length).localeCompare(prefix))
       document.getElementById('myInput').value = prefix;