jQuery if Element has an ID?

Question

How would I select elements that have any ID? For example:

if ($(\".parent a\").hasId()) {
    /* then do something here */
}

I, by no mean

Answer 1

Number of .parent a elements that have an id attribute:

$('.parent a[id]').length

Answer 2

You can do this:

if ($(".parent a[Id]").length > 0) {

    /* then do something here */

}

Answer 3

Like this:

var $aWithId = $('.parent a[id]');

Following OP's comment, test it like this:

if($aWithId.length) //or without using variable: if ($('.parent a[id]').length)

Will return all anchor tags inside elements with class parent which have an attribute ID specified

Answer 4

Simple way:

Fox example this is your html,

<div class='classname' id='your_id_name'>
</div>

Jquery code:

if($('.classname').prop('id')=='your_id_name')
{
    //works your_id_name exist (true part)
}
else
{ 
    //works your_id_name not exist (false part)
}

Answer 5

I seemed to have been able to solve it with:

if( $('your-selector-here').attr('id') === undefined){
    console.log( 'has no ID' )
}