jQuery tutorial for beginners - jQuery case insensitive attribute selector

Link for all dot net and sql server video tutorial playlists https://www.youtube.com/user/kudvenkat/playlists?sort=dd&view=1 Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/03/jquery-case-insensitive-attribute.html Healthy diet is very important both for the body and mind. If you like Aarvi Kitchen recipes, please support by sharing, subscribing and liking our YouTube channel. Hope you can help. https://www.youtube.com/channel/UC7sEwIXM_YfAMyonQCrGfWA/?sub_confirmation=1 In this video we will discuss, how to write a jQuery case-insensitive attribute value selector. Let us understand this with an example. The following example, only selects DIV 1. This is because jQuery attribute value selector is case-sensitive. [html] [head] [title][/title] [script src="Scripts/jquery-1.11.2.js"][/script] [script type="text/javascript"] $(document).ready(function () { $('div[title="DivTitle"]').css('border', '3px solid red'); }); [/script] [/head] [body] [div title="DivTitle"] DIV 1 [/div] [br /] [div title="DIVTITLE"] DIV 2 [/div] [br /] [div title="divtitle"] DIV 3 [/div] [/body] [/html] Use the following code to make the jQuery attribute value selector case-insensitive [script type="text/javascript"] $(document).ready(function () { $('div[title]').filter(function () { return $(this).attr('title').toLowerCase() == 'divtitle'; }).css('border', '3px solid red'); }); [/script] The above script should select all the 3 divs. Now let us look at an example of making attribute contains selector [name*="value"], case-insensitive. The following example, selects only DIV 1 element. This is because the attribute contains selector is case-sensitive. [html] [head] [title][/title] [script src="Scripts/jquery-1.11.2.js"][/script] [script type="text/javascript"] $(document).ready(function () { $('div[title*="Div"]').css('border', '3px solid red'); }); [/script] [/head] [body] [div title="DivTitle1"] DIV 1 [/div] [br /] [div title="DIVTITLE2"] DIV 2 [/div] [br /] [div title="divtitle3"] DIV 3 [/div] [/body] [/html] To make attribute contains selector case-insensitive, use filter() method and regular expression as shown below. [script type="text/javascript"] $(document).ready(function () { $('div[title]').filter(function () { return (/Div/i).test($(this).attr('title')); }).css('border', '3px solid red'); }); [/script] OR [script type="text/javascript"] $(document).ready(function () { $('div[title]').filter(function () { return RegExp('Div','i').test($(this).attr('title')); }).css('border', '3px solid red'); }); [/script] The above script should select all the 3 divs. Visual Studio Keyboard Shortcuts Convert Selected Text to Upper Case - CTRL + SHIFT + U Convert Selected Text to Lower Case - CTRL + U