JQuery selector in variable

Question

I wanted to ask about using selector from a variable

first I have:

function check()
{
  $('.info input, .info select').each(function(n, element){
     if ($(element).val()=='')
     alert('empty');
  });
}

and called it in

$('input')change(check);

and they worked fine.

But now I want to pass some value to the function to make it dynamic, like

$('input')change(check('.info'));

and changed the function to

function check(sel) {   
     $(sel +' input, '+ sel + ' select').each(function(n, element){
     if ($(element).val()=='')
     alert('empty');   
  }); 
 }

but it doesn't work. Any help please.. Thanks,

nagut

any errors? I can see a possible typo, $('input')change(check('.info')); is missing ., it should be $('input').change(check('.info')); — Andy E
– Andy E, Commented May 16, 2010 at 10:47

Kobi · Accepted Answer · 2010-05-16 10:58:18Z

5

change should get a function. By writing check('.info') you are triggering the function, and passing its result to the change event. Simply wrap the call in another function:

$('input').change(function(){check('.info');});

edited May 16, 2010 at 10:58

answered May 16, 2010 at 10:51

Kobi

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1 Comment

nagut Over a year ago

Work Successfully. Thanks Kobi.

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