JQuery how can i check if the textbox is empty

Question

I'm trying to know if the textbox is empty when i change of textbox, how can i do it? i tried to create a script, but i totally failed.

I'm new at jQuery.

Here my js script

$("#description").blur(function())){
if ($("#description").val() == "") alert ("Empty!");
}}

I want to know if my textarea is empty or not

<label>Description</label>
<textarea cols="55" rows="3" id="description" name="description">
</textarea>
<br><br>

What do i need to do? I dont want to call a function inside the textarea

possible duplicate of Check if textbox has empty value

Jorge
– Jorge

2014-04-04 13:39:09 +00:00
Commented Apr 4, 2014 at 13:39 — Jorge
– Jorge, Commented Apr 4, 2014 at 13:39
do spaces count as empty???

A. Wolff
– A. Wolff

2014-04-04 13:42:53 +00:00
Commented Apr 4, 2014 at 13:42 — A. Wolff
– A. Wolff, Commented Apr 4, 2014 at 13:42

Anoop Joshi P · Accepted Answer · 2014-04-04 13:38:26Z

1

Wrap it in dom ready

$(document).ready(function () {
    $("#description").blur(function () {
        if ($("#description").val() == "") alert("Empty!");
    });
});

aLso your syntax has some mistakes

answered Apr 4, 2014 at 13:38

Anoop Joshi P

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Comments

RGS · Accepted Answer · 2014-04-04 13:39:43Z

0

$("#description").blur(function(){
if ($("#description").val() == ""){ alert ("Empty!")};
});

answered Apr 4, 2014 at 13:39

RGS

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Comments

Adil Shaikh · Accepted Answer · 2014-04-04 13:38:54Z

0

Use change

$("#description").on('change',function(){
  if(this.value == "") alert("Empty");
});

answered Apr 4, 2014 at 13:38

Adil Shaikh

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Comments

Bertotz · Accepted Answer · 2014-04-04 13:40:49Z

0

$(document).ready(function () {
    if ($('#element').is(':empty')){
       //do something
     }
});

answered Apr 4, 2014 at 13:40

Bertotz

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