/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

1 vote103 views1 answer
Jquery move element to another without losing events
Javascript jQuery
60 votes106 views6 answers
Get value by id in jquery
Javascript jQuery
2 votes114 views3 answers
Bind jquery
Javascript jQuery
7 votes155 views4 answers
Jquery disable option by value
Javascript jQuery
21 votes111 views5 answers
Jquery replace html
Javascript jQuery
0 vote102 views1 answer
Check if class is active jquery
Javascript jQuery
0 vote112 views1 answer
Jquery textarea autosize
Javascript jQuery
1 vote112 views1 answer
Jquery SEND TO END OF ARRAY
Javascript jQuery
59 votes119 views3 answers
Jquery set style property
Javascript jQuery
7 votes99 views4 answers
Jquery get selected dropdown item
Javascript jQuery