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Robert is a South African technology specialist with focus on Microsoft technologies. He is very passionate about teaching and sharing and is a Microsoft MVP & Ranger. Robert is a DZone MVB and is not an employee of DZone and has posted 75 posts at DZone. You can read more from them at their website. View Full User Profile

Browser Link + LESS? Does it work?

11.03.2013
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(You can grab the code for this from: https://github.com/rmaclean/BrowserLinkAndLESSDemo)

imageAt TechDays in Johannesburg, I showed a lot of cool stuff, but this post is about two specific pieces of awesome technology – Browser Link & LESS. In my talk (you can watch  a video of it here) I showed off how you use Browser Link with Web Essentials to detect unused CSS. A rather sharp attendee came up to me afterwards and asked me, what happens with LESS? Does it do the same thing?

I went back and experimented with it – first was to setup some CSS that wasn’t used and test. Everything works as expected.

Step two, was to use LESS directly, so I setup the HTML with

  • I used Nuget to pull down LESS.js
  • I put in the the link to the LESS file

<head runat="server"><br>
    <title></title><br>
    <link rel="stylesheet/less" type="text/css" href="/Content/Awesome.less" /><br>
    <script src="Scripts/less-1.4.2.min.js"></script><br>
</head>
Next step was to configure IIS Express, using the web.config, to serve the LESS file. To do that I added the following to the web.config file:
<system.webServer><br>
  <staticContent><br>
    <mimeMap fileExtension=".less" mimeType="text/css" /><br>
  </staticContent><br>
</system.webServer>

and I ran the app again. You know what happened? It all just worked – Browser Link’s CSS logic detected the unused class in the LESS file, and when I clicked it – it took me directly to the class in the LESS file Smile



Published at DZone with permission of Robert Maclean, author and DZone MVB. (source)

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