Question

In a login form, when I click submit button, if the submit is failed, the page will refresh and the content which I have inputed have gone, how to make the control remember the value I have tested and represent in the control.

Thanks in advance!

Answer 1

Try this way
With this plugin you can make it work.
Here are some of available API

1. Set the value of a form field or the HTML of an element to a cookie named
   after the field’s/element’s name or id attribute

   $('#username').cookify();
   

   The value of the field, or HTML of the element, with id “username” is set to a cookie
   named after the name or id attribute of that field/element. If a radio or checkbox and
   it’s checked, the value will be set.

2. Fill a field’s value, or an element’s innerHTML with the value of a cookie

   $('#username').cookieFill();
   

   Set the value of the input, or HTML of the element, with id, ‘username’, to the
   value of a cookie by the same name. If a radio or checkbox and it is checked, the
   cookie will be set. If not checked, the cookie will be deleted.

3. Bind an input to the cookies library

   $('#username').cookieBind();
   

   Fills the field or element with id, ‘username’, with the cookie named the same and
   sets the field’s/element’s change event to fire cookify() to update the cookie when
   the input value changes