Stefan Baumgartner

Web ops, performance and front-end

List of articles

Stay focused with Webmonitoring (

Another article I wrote for the blog over at my employer. When we switched our login from a purely JavaScript based to a progressively enhanced one, we ended up in some deployment mistakes. This was how our tool recognized those errors and what it meant for us. Read it over at Ruxit

Node.js 4.0.0 and Gulp first aid

Node.js 4.0.0 just got released! The jump from 0.12.x to 4.0 is a huge one, especially since it incorporates lots of changes that happened over at the IO.js project. So far, I haven’t experienced a lot of issues with it, and it quickly became the one version that I use as default on my system. However, there are some hickups here and there. Here I try to collect some issues with Gulp.js and first aid solutions. There are few and they might be out of date quickly.

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Gulp 4: Incremental builds with gulp.lastRun

Incremental builds are a good way of speeding up your build iterations. Instead of building everything again with each and every iteration, you just process the files that have changed.

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Gulp 4: Passthrough source streams

Another nice addition to vinyl-fs that will end up in Gulp 4 is the possibility of having “passthrough” source streams. This basically allows gulp.src to be writable. So what does this mean for you?

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JavaScript 101: Arrays

This was the first contribution I’ve ever made at GitHub, belonging to the original website. The original article is now offline, but saved here for the future.

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Gulp 4: Built-in Sourcemaps

One really cool feature on the Gulp 4 roadmap is the inclusion of native sourcemaps. A commit roughly two weeks ago at the vinyl-fs package makes this possible now. Instead of using the gulp-sourcemaps package directly, you can use a flag in gulp.src. Gulp takes care of the rest:

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I'm writing a book: Front-End Tooling with Gulp, Bower and Yeoman

Okay, lovely people, this is huge for me. I’m actually in the midst of writing a book. It’s called “Front-End Tooling with Gulp, Bower and Yeoman”, and it’s – you guessed it – about front-end tooling with Gulp, Bower and Yeoman. Actually I’ve been writing on it for the last 9 months, and now it has reached the phase of going public for the first time. It’s in the so called “Early Access Program” from Manning (MEAP), where you can buy it before it goes to print, helping me pointing at all the mistakes I make. Or do some slap on the back because it’s so good.

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Book Review: CSS Secrets by Lea Verou

In 2012 I saw one of Lea Verou’s talks for the first time. And if you every had the opportunity of seeing her, you know that you are in for a treat. Her unique way of teaching all those nifty CSS tricks is not only entertaining and engaging, but also a huge motivation for your own work. Every time I returned home from one of those conferences, I tried recreating those tricks and secrets (as she calls it) at home. Using her interactive slides I managed to recreate a good deal of what she’s shown, but sometimes I wished I had some sort of documentation ready. Well, this is now available with her book “CSS Secrets”.

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Deconfusing Pre- and Post-Processing

Some sort of follow-up to my first Medium article – PostCSS Misconceptions – this one deals with the terms pre- and post-processing in general. Well illustrated and with a verdict.

How we sped up

The first time I wrote something for my new Job at We spent about three weeks to push the site’s loading performance to a possible max, without us having the possibility to reduce the page’s weight. This is the write-up of our endeavour.