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Derk-Jan Karrenbeld profile picture

Derk-Jan Karrenbeld

Still a random idiot

Location Rotterdam, The Netherlands Joined Joined on  Twitter logo GitHub logo Facebook logo LinkedIn logo StackOverflow logo External link icon
Education

Some comp. sci. @ Delft, University of Technology

Work

Partner & Operations Manager at XP Bytes

Work status

I'm looking for work!

sleeplessbyte profile

Predicate (Programming logic)

#tutorial #javascript #ruby #java
Reactions 6
4 min read

Recent Comments

re: Expo SDK 38 is now available
Upgrade your node. The error is pretty clear. You're on node ...
re: Expo SDK 38 is now available
Check the Feature Requests to see if yours is listed, or crea...
re: Expo SDK 38 is now available
No. You can use 16.11.
re: Expo SDK 38 is now available
No, it won't be supported, because uneven node versions never...
re: Expo SDK 38 is now available
Check out these lines in the expo-cli repo: ...
re: Expo SDK 38 is now available
If I could get the expo/expo repo running on my (windows) mac...
re: Expo SDK 38 is now available
Yep, expo upgrade finally worked smoothly (I had issues with ...
re: Expo SDK 38 is now available
Missing in this post (for me): It's now built against React...
View All 60 Comments
sleeplessbyte profile

Cross tab events

#javascript #tutorial #webdev #webapi
Reactions 2
5 min read
sleeplessbyte profile

FFMPEG examples

#audio #cli #ffmpeg #tutorial
Reactions 6
5 min read
sleeplessbyte profile

Forward arguments in shell

#shell #bash #cli
Reactions 6 Comments 2
2 min read
sleeplessbyte profile

Internship 2019: Reading list

#readinglist #resource #internship #beginners
Reactions 61
7 min read
sleeplessbyte profile

Want to help people learn programming languages?

#hacktoberfest #contributorswanted #exercism
Reactions 53
3 min read
sleeplessbyte profile

Tetris: Choosing the tools and setting up the project

#tutorial #javascript #typescript #beginners
Reactions 42
26 min read
sleeplessbyte profile

#showdevTetris: Building a game using JavaScript

#javascript #beginners #tutorial #showdev
Reactions 104 Comments 7
5 min read
sleeplessbyte profile

JavaScript, Ruby and C are not call by reference

#javascript #ruby #computerscience #beginners
Reactions 127 Comments 23
9 min read
sleeplessbyte profile

TypeScript types you should know about

#typescript #beginners
Reactions 14
7 min read
sleeplessbyte profile

#showdevWriting a code analyzer in TypeScript (from scratch)

#typescript #showdev #opensource #tutorial
Reactions 75 Comments 6
17 min read
sleeplessbyte profile

Control flow in reduce/inject (ruby)

#ruby #reduce #controlflow #mapreduce
Reactions 7
6 min read
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