Using jQuery to find out Elements on the Page that do not have an ID attribute

In this post, I will demo a simple selector to find out elements on the page that do not have an ID attribute declared on them

<html xmlns="http://www.w3.org/1999/xhtml">
<
head>
<
title>Input Elements that do not have an ID attribute</title>
<
script type="text/javascript"
src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.min.js">
</
script>

<
script type="text/javascript">
$(function () {
$('div :not([id])').css("border", "2px Black solid");
// for only input elements
//$('div input:not([id])').css("border", "2px Black solid");
});
</script>
</
head>
<
body>
<
div>
<
input id="Button1" type="button" value="button" />
<
input id="Text1" type="text" />
<
input type="password" />
<
input type="radio" />
<
input id="Checkbox1" type="checkbox" />
<
img src="images/Desert.jpg" height="200" width="200" />
</
div>
</
body>
</
html>


The code shown above uses the :not() selector to find elements without the id attribute and adds a black border around the elements.

image



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About The Author

Suprotim Agarwal
Suprotim Agarwal, ASP.NET Architecture MVP (Microsoft Most Valuable Professional) works as an Architect Consultant and provides consultancy on how to design and develop Web applications.

Suprotim is also the founder and primary contributor to DevCurry, DotNetCurry and SQLServerCurry. He is the Editor of a Developer Magazine called DNC Magazine. He has also written two EBooks 51 Recipes using jQuery with ASP.NET Controls. and The Absolutely Awesome jQuery CookBook

Follow him on twitter @suprotimagarwal

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