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Nice article, short and precise: http://ruben.verborgh.org/blog/2012/12/31/asynchronous-error-handling-in-javascript/

Books about Mathematics

http://www.amazon.com/Magical-Mathematics-Mathematical-Animate-Tricks/dp/0691151644

http://www.amazon.com/Colossal-Book-Mathematics-Paradoxes-Problems/dp/0393020231

http://www.amazon.com/Colossal-Book-Short-Puzzles-Problems/dp/0393061140/ref=pd_sim_b_2

http://www.amazon.com/Four-Colors-Suffice-Problem-Solved/dp/0691115338

http://www.amazon.com/Mathenauts-Mathematical-Wonder-Rudy-Rucker/dp/0877958904

http://www.amazon.com/Games-Life-Explorations-Evolution-Behaviour/dp/0198547838

Learn Robotics resources

I’ve ordered a robot on Robotshop.com. It’s almost 2 months they’re trying to get all the pieces of my huge order, but it seems like it’s coming soon. Meanwhile I’ve started gathering resources for education:

http://www.microsoft.com/robotics/#Learn

http://www.netduino.com/downloads/

http://www.helloapps.com/QuickStart/

http://www.tinyclr.com/support

http://www.societyofrobots.com

http://myrobots.com/

Javascript weirdest features

1. typeof Array returns ‘object’
2. typeof null returns ‘object’
3. var n = [4, 8, 15, 16, 23, 42];
   n.sort( ); // n is [15, 16, 23, 4, 42, 8]
4. parseInt(“08″) = 0, because js thinks that the number has base 8.
5. 0.1 + 0.2 is not equal to 0.3
6. typeof NaN == = ‘number’ // true
   NaN === NaN // false
   NaN !== NaN // true
7. ‘ ‘ == ’0′ // false
   0 == ‘ ‘ // true
   false == ‘false’ // false
   false == ’0′ // true
   false == undefined // false
   false == null // false
   null == undefined // true’ \t\r\n ‘ == 0 // true

Test is not mandatory

An impressive article from Eric Jacobson that makes a lot of testers free. Here is his list of cases that could be skipped:

Closure in Javascript

Trying to stimulate me to begin starting to push myself to learn Javascript. This is the buggest language I’ve met, it was invented like in 10 days with some great concept and even more great caveats.

Started reading Test-driven javascript development, but ocassionally stopped: too obfuscated for a beginner. Now trying to make Javascript: Good Parts by Douglas Crockford.

The first hard thing supposed to be Closures. But here is the great article on this topic: http://blog.morrisjohns.com/javascript_closures_for_dummies.html

Hope it will go easier from now on.

Text Entering NUI

What is the most annoying keyboard action you use during development? Shift and a key? Special characters? Enter? For me it’s probably shift but I have to watch for myself.
Idea: use leg pedals for complicate actions, like piano pedals or organ.