Check if checkbox is checked not working

Question

I created a checkbox:

<input type="checkbox" id="populatie" name="werking">

But when I try to check if it's checked, it doesn't do anything.

$("#opslaan").click(function(){

    if ($("#populatie").checked) {
    alert(hello); } 


})

What am I doing wrong?

Edit: when I inspect element, and I checked it, I get:

checked true

So it's definetly checked...

Try: `$("#populatie")[0].checked` [DEMO](http://jsfiddle.net/tewathia/Kp7Wu/). The `checked` property is for DOM nodes, not jQuery wrapped sets — tewathia, Feb 01 '14 at 12:38
duplicate: http://stackoverflow.com/questions/901712/check-checkbox-checked-property-using-jquery — Viktor K, Feb 01 '14 at 12:39

score 1 · Answer 1 · answered Feb 01 '14 at 12:43

1

Check it without jQuery:

$("#opslaan").click(function(){
    if(document.getElementById('populatie').checked) {
        alert("hello");
    }
});

It may even be faster

answered Feb 01 '14 at 12:43

SomeShinyObject

score 0 · Answer 2 · answered Feb 01 '14 at 12:39

$("#populatie") returns a jQuery object, which does not have the checked property, it belongs to the dom element.

There are many ways to check it, one of the is to get the dom element reference and then check whether the property is set

Another is to use .is() and the :checked selector

$("#opslaan").click(function(){

    if ($("#populatie").is(':checked')) {
    alert(hello); } 


})

score 0 · Accepted Answer · answered Feb 01 '14 at 12:40

0

you must pass hello as string to alert: alert("hello"), double quotation mark is missing

answered Feb 01 '14 at 12:40

Amir Sherafatian

Pranav C Balan · Answer 4 · 2014-02-01T12:46:02.023

0

Use prop() , $("#populatie") is a jQuery object,which doesn't have checked property

$("#opslaan").click(function(){    
    if ($("#populatie").prop('checked')) {
    alert('hello'); 
   }     
});

edited Feb 01 '14 at 12:46

answered Feb 01 '14 at 12:40

Pranav C Balan

score 0 · Answer 5 · edited Feb 01 '14 at 12:56

0

if ($("#populatie").is(":checked"){

    alert("");

}

edited Feb 01 '14 at 12:56

CRABOLO

answered Feb 01 '14 at 12:40

Manoj

5 Answers5