Is this code correct?
if(!($('textarea: name').val().length == 0)) {
alert("test");
}
I want to check if there is something written or not inside the textarea field in the form? I ask because it's not working!?
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Did you bind this function to textarea event? Because if you do then you don't need use $('textarea: name') selector, you'll have already 'this'.megas– megas2011-06-15 18:23:28 +00:00Commented Jun 15, 2011 at 18:23
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4 Answers
You're missing your closing parens in your if statement. Try this:
if(!( $('textarea: name').val().length == 0 ))
{alert("test");}
There may be other jQuery selector issues.
2 Comments
BoltClock
Also the selector. What is
$('textarea: name') supposed to be?
3D-kreativ
Thanks! Closing parens in place!
if(!($('textarea').val().length == 0)) will work if you have only one textarea element in your page. I think what you were trying to do with that :name selector was select a specific textarea based on its name, in which case you need:
$('textarea[name=yourName]')
3 Comments
3D-kreativ
Nice! That worked as I wanted, but I was using the ID of the textarea not the name from the beginning. ID not working like this $('textarea[#yourName]')?
justis
You could do
$('textarea#yourName') or just $('#yourName'). The second one will perform faster.
James Allardice
Yes, @justis's method is perfect. However, just so you're clear on what I was doing,
$('textarea') will select all textarea elements in the document. If you want to select an element by it's id, you use the #. If you want to use the class, you use a ., and if you want to use another attribute you do it like this: $('textarea[name=theName]').Since a length of 0 is "falsy", you can simplify your test to using just .length:
if ($('textarea[name=foo]').val().length) {
alert(true);
} else {
alert(false);
}
Here is a jsFiddle where you can play with it.
Comments
if ($('textarea: name').val().length > 0) {
// do something if textbox has content
}
Comments
