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Quote

"Programmers will tell you to read this guy named “Dijkstra” on this subject. I recommend you avoid his writings on this unless you enjoy being yelled at by someone who stopped programming at the same time programming started."

Learn Python the Hard Way

(Source: learnpythonthehardway.org)

#python

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Notes JS.Everywhere Event Twitter Stream

This past Saturday was the JS.Everywhere conference put on by Wakanda. It was a lot of fun, and there were some really great presenters. Douglas Crockford gave a brief history and description of our favorite language,Julian Aubourg showed off jQuery’s “magical” deferreds, and Dave Terry gave a very slick demo of Wakanda.

The above link is for the event’s twitter stream. I’ll likely follow up with more detailed posts about particular topics.

#JavaScript #Wakanda #Wakanday #jQuery

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Notes Bash Tip: Control R

If you use the bash shell, you probably already know that hitting up will show the last command. Nice, but at some point you’ve probably had to go back dozens of lines before you got to the command you wanted, at which point just typing the command again is easier than hitting up 37 times.

Control R solves this problem. Type Ctrl-R; it will prompt you, and what you type will filter your entire command line history.

Lets say you want to restart your apache server, again, but you don’t remember that cryptic command you used 5 hours ago. You do remember it was something something restart, and so you type in:

Ctrl-r resta

and before you even finish typing restart, the following command appears:

sudo /etc/init.d/apache2 restart

Awesome! Hit enter to use this command. Or continue hitting Ctrl-r to scroll through more matching results.

If you’re an Emacs user, you’ll notice that Ctrl-r is the command for reverse search, which is exactly what we are doing.

I had been using the command line for 6 years before I discovered this gem. I wish somebody had written a blog post about it.

#bash #tip

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Notes

"When [Brendan Eich] was being interviewed [at Netscape], he told them that he would like to write a Scheme interpreter, and they said “Wow, that’s great, that’s just the kind of thing we’re thinking of”. So they hired him, but before he started work, they found out what scheme was, and when he got there, they told him “Don’t do Scheme, we want something that people are going to like, make it look like Java or something”."

Douglas Crockford on the creation of JavaScript; The Tale of JavaScript. I Mean ECMAScript

(Source: channel9.msdn.com)

#javascript #scheme

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"Remember that everyone makes mistakes. Programmers are like magicians who like everyone to think they are perfect and never wrong, but it’s all an act. They make mistakes all the time."

Learn Python the Hard Way

(Source: learnpythonthehardway.org)

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"By the way, [Python] is named after the BBC show “Monty Python’s Flying Circus” and has nothing to do with reptiles."

didn’t see this coming… In the middle of Python Docs

(Source: docs.python.org)

#python

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"Copy/Paste is not a design pattern! >:o"

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"It’s a long-standing principle of programming style that the functional elements of a program should not be too large. If some component of a program grows beyond the stage where it’s readily comprehensible, it becomes a mass of complexity which conceals errors as easily as a big city conceals fugitives. Such software will be hard to read, hard to test, and hard to debug."

Paul Graham, Programming Bottom-Up

(Source: paulgraham.com)

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"In a low-tech society you don’t see much variation in productivity. If you have a tribe of nomads collecting sticks for a fire, how much more productive is the best stick gatherer going to be than the worst? A factor of two? Whereas when you hand people a complex tool like a computer, the variation in what they can do with it is enormous."

Paul Graham, Great Hackers

(Source: paulgraham.com)

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"I think $string is a fantastic variable name!"