/Javascript/jQuery/Jquery check if input is empty on keyup

Jquery check if input is empty on keyup

http://jsfiddle.net/DKW7M/

HTML:
<input type="text" id="test" />
-----
JS:

$("#test").keyup(function() {
                var input = $(this);

                if( input.val() == "" ) {
                  input.css( "border", "1px solid #000" );
                }   
            });

Source: stackoverflow.com

Similar codes

0 vote305 views1 answer
Multidimensional array push in jquery
Javascript jQuery
1 vote280 views1 answer
Jquery multiple div click
Javascript jQuery
1 vote284 views1 answer
An unhandled exception occurred: Script file ../node_modules/jquery/dist/jquery.min.js does not exist.
Javascript jQuery
8 votes317 views4 answers
Jquery copy to clipboard
Javascript jQuery
0 vote311 views1 answer
Jquery plugin for searchable dropdown
Javascript jQuery
0 vote315 views1 answer
On scroll image blur jquery
Javascript jQuery
10 votes281 views4 answers
Jquery chek radio
Javascript jQuery
0 vote306 views1 answer
Get left position based on container jquery
Javascript jQuery
0 vote324 views1 answer
Remove required attribute jquery mvc
Javascript jQuery
0 vote318 views1 answer
JQuery DataTables Checkboxes
Javascript jQuery