Get ID of all divs with a class on a page - jquery

Question

I need to get the ID of every div with a class and send it across to another PHP file. I would assume I need all of the ID's in one variable. The ID's will be put into a mysql query where I will find data that does not equal these ID's. How can this be done?

I have tried jQuery's each function but you cannot put all of the data from that function into one variable. At least not the way i did it.

This is what i've tried.

$('.newsItem').each(function(){
     alert (this.id);
});

Thanks in advance.

I'm unable to think of a good reason why you'd want to do this. Can't you just use an ordinary HTML form? — Blazemonger, Sep 04 '12 at 17:47

score 13 · Accepted Answer · edited Sep 04 '12 at 18:05

13

var ids = $('.className').map(function(){
   return this.id;
}).get();

DEMO

edited Sep 04 '12 at 18:05

pimvdb

141,012
68
291
345

answered Sep 04 '12 at 17:47

Robin Maben

19,662
16
61
93

2

You will obtain a jQuery object of strings this way. Please use `.toArray()` after such `.map` operations. And `.map` supports `this` as well. – pimvdb Sep 04 '12 at 17:48
You can also place the `.get()` at the end of the map `}).get();` to get it all done in 1 fell-swoop :) – Mark Pieszak - Trilon.io Sep 04 '12 at 17:57
@mcpDESIGNS: That does seem neater :) – Robin Maben Sep 04 '12 at 18:05

jtheman · Answer 2 · 2012-09-04T17:49:56.300

0

Put the data in a array

 Var ids= new Array();
 $('.newsItem').each(function(){
            ids[] = $(this).attr('id');
    });

edited Sep 04 '12 at 17:49

answered Sep 04 '12 at 17:49

jtheman

7,211
3
24
38

Get ID of all divs with a class on a page - jquery

2 Answers2