c#
Although I love strings, sometimes the String class can break your heart. For example, in C#, there is no String.Left() function. Fair enough; we can roll up our sleeves and write our own function lickety-split: public static string Left(string s, int len) { if (len == 0 || s.Length == 0)
programming languages
As I grow older and wiser even older as a programmer, I’ve found that my personal coding style has trended heavily toward minimalism. I was pleased, then, to find many of the coding conventions I’ve settled on over the last 20 years codified in Spartan programming. No, not
regular expressions
I love regular expressions. No, I’m not sure you understand: I really love regular expressions. You may find it a little odd that a hack who grew up using a language with the ain’t keyword would fall so head over heels in love with something as obtuse and
programming languages
As programmers, we deal with a lot of unusual keyboard characters that typical users rarely need to type, much less think about: $ # % {} * [] ~ & <> Even the characters that are fairly regularly used in everyday writing – such as the humble dash, parens, period, and question mark – have radically different meaning
ruby
I have decidedly mixed feelings about the book Beautiful Code, but one of the better chapters is Tim Bray’s “Finding Things.” In it, he outlines the creation of a small Ruby program: counts = {} counts.default = 0 ARGF.each_line do |line| if line =~ %r{GET /ongoing/When/dddx/(dddd/
programming languages
What do you think the single greatest invention in computer science is? Besides the computer itself, I mean. Seriously, before reading any further, pause here for a moment and consider the question. I’ve talked before about how young so-called modern computer programming languages really are, and it bears repeating
programming languages
I seldom pause to answer criticism of my blog. If I did, I’d have time for little else in the course of the day, and no time for constructive work. But occasionally I’ll encounter a particularly well written critique that gives me pause, such as Alastair Rankine’s
programming languages
I can’t remember when, exactly, I discovered Clay Shirky, but I suspect it was around 2003 or so. I sent him an email about micropayments, he actually answered it, and we had a rather nice discussion on the topic. I’ve been a fan of Clay’s writing ever
php
Here’s a list of every function beginning with the letter “A” in the PHP function index: abs() acos() acosh() addcslashes() addslashes() aggregate() aggregate_info() aggregate_methods() aggregate_methods_by_list() aggregate_methods_by_regexp() aggregate_properties() aggregate_properties_by_list() aggregate_properties_by_regexp() aggregation_info() apache_child_terminate(
xml
Everywhere I look, programmers and programming tools seem to have standardized on XML. Configuration files, build scripts, local data storage, code comments, project files, you name it – if it’s stored in a text file and needs to be retrieved and parsed, it’s probably XML. I realize that we
programming languages
Like everything else in software engineering, it seems, the concept of Model-View-Controller was originally invented by Smalltalk programmers. More specifically, it was invented by one Smalltalk programmer, Trygve Reenskaug. Trygve maintains a page that explains the history of MVC in his own words. He arrives at these definitions in a
programming languages
One of the central themes of stackoverflow.com is that software developers no longer learn programming from books, as Joel mentioned: Programmers seem to have stopped reading books. The market for books on programming topics is miniscule compared to the number of working programmers. Joel expressed similar sentiments in 2004’