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, Developer Technologies MVP (Microsoft Most Valuable Professional) is the founder and contributor for DevCurry, DotNetCurry and SQLServerCurry. He is the Chief Editor of a Developer Magazine called DNC Magazine. He has also authored two Books - 51 Recipes using jQuery with ASP.NET Controls. and The Absolutely Awesome jQuery CookBook.

Follow him on twitter @suprotimagarwal.

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