check if some SPECIFIC inputs are not empty on a button click using jquery

Question

i have a button and some inputs, i want to let jquery check for me if none of the inputs is empty before doing some action : so this is what i've done :

$('#my_button)').click(function() {
if(
for(i=0;i<$('#my _button').parent().prev().children().children().length;i++){){ //this is to check if the inputs exist
$('#my_button').parent().prev().children().children().eq(i).val()!==''; // i've tried .val().is(:empty); but not working too
//so the test fails for somehow ! and the if condition doesn't work
// google chrome developers inspector gives me this error (Uncaught SyntaxError: Unexpected token for)
}
){
//do some action
}}

and this is my jsfiddl test !

Jesan Fafon · Accepted Answer · 2013-01-16 15:21:12Z

0

It gives you the unexpected token warning on the for because it is an unexpected token. You can't put for loops in the boolean expression of an if statement.

You will need to do something similar to this pseudo-code:

$('#my_button').click(function() {
  succeed = true;
  for all of my inputs {
    if(input is empty){
       succeed = false;
    }
  }
  if(succeed) //do stuff
}

edited Jan 16, 2013 at 15:21

answered Jan 15, 2013 at 15:43

Jesan Fafon

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1 Comment

user1283226 Over a year ago

i got your idea .. any jsfiddle example ?

Adil Shaikh · Accepted Answer · 2013-01-15 15:49:39Z

0

<table>
 <tr>
  <td>
   <div><input id='i1'></div>
   <div><input id='i2'></div>  
  </td>
  <td><button id='my_button'>click me</button></td>
 </tr>
</table>

Script:

    $('#my_button').on('click', function() {
        var in1 = $('#i1').val();
        var in2 = $('#i2').val();

        if(in1 != '' && in2 != ''){
               // do something
            }
            else{
              //alert

            }
    }

edited Jan 15, 2013 at 15:49

answered Jan 15, 2013 at 15:40

Adil Shaikh

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2 Comments

user1283226 Over a year ago

i must mention that i can't associate any ID with inputs because they are created dynamically ... and it will be a mess if i tried to includ ID's

user1283226 Over a year ago

and i don't want to disable my button ! i want do some other action ONLY IF all the inputs are empty

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