Getting id and class value of a html element

We have a div and we want to get its id value based on its class value.

Suppose a div is given as below and we want to fetch div id based on a button click.
for getting attribute id we use attr() method.

Example

<div class="select" id="select_25">
This is a ball
</div>

<input type="submit" value="Get Id" id="submit">

This is a ball

</div>

$(document).ready(function () {
    $(document).on('click', '#submit', function (event) {
        event.preventDefault();
         alert("id is "+$(".select").attr('id'));
         alert("class is "+$("#select_25").attr('class'));
    });
});

$(document).ready(function () {

$(document).on('click', '#submit', function (event) {

event.preventDefault();

alert("id is "+$(".select").attr('id'));

alert("class is "+$("#select_25").attr('class'));

});

Output