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  Scala feels like EJB 2, and other thoughts

At Devoxx last week I used the phrase "Scala feels like EJB 2 to me". What was on my mind?ScalaFor a number of years on this blog I've been mentioning a desire to write a post about Scala. Writing such a post is not easy, because anyone who has been paying attention to anti-Scala blog posts will know that writing one is a sure fire way of getting flamed. The Scala community is not tolerant of dissent.But ultimately, I felt that it was important for me to speak out and express my opinions. As I s...

   Scala,Module,EJB,Concurrency,Feature     2011-11-22 08:29:44

  In-memory key-value store in C, Go and Python

Subtitle: Wow Go’s net library is fast On paternity leave for my second child, I found myself writing an in-memory hashmap (a poor-man’s memcached), in Go, Python and C. I was wondering how hard it would be to replace memcached, if we wanted to do something unusual with our key-value store. I also wanted to compare the languages, and, well, I get bored easily! The code is on github as Key-Value-Polyglot. Each version implements enough of the get and set commands from the mem...

   key-value,Memory,C,Python,Go     2012-03-21 09:21:51

  The Wasteful Legacy of Programming as Language

A few years ago I visited a friend who is a graduate student in linguistics. After some time he asked me if I was aware of the work by Chomsky on formal languages. I told him that yes, Chomsky work was a basis for much of the developments in theoretical computer science. More than that, I was glad to learn that there was something technical that I could share and discuss with other people in linguistics. At the time I found this was just a great coincidence. It was only recently, though, t...

   Programming language,Human language,Chomsky     2011-11-28 10:36:34

  Build a Kubectl Plugin from Scratch

by author The command-line tool kubectl is indispensable when using Kubernetes. You need it to query related Pod and Service information both in developing or performing some maintenance operations, such as events, scale, rolling update, etc. However, when using kubectl, there are many inconveniences. Though Kubernetes is officially maintaining kubectl¹, and you can submit the problems, improvement, and even PR in its Github Issues, you still have to wait long before its release. The m...

   KUBENETES,KUBECTL,PLUGIN,GOLANG     2020-12-02 03:43:16

  Pointers, arrays, and string literals

A recently posted question on Stack Overflow highlighted a common misconception about the role of pointers and arrays held by many programmers learning C.The confusion stems from a misunderstanding concerning the role of pointers and strings in C. A pointer is an address in memory. It often points to an index in an array, such as in the function strtoupper in the following code:void strtoupper(char *str) { if (str) { // null ptr check, courtesy of Michael while (...

   char pointer,initialization,literal,cann     2011-09-22 13:29:23

  Building the new AJAX mail UI part 2: Better than templates, building highly dynamic web pages

This is part 2 of a series of technical posts documenting some of the interesting work and technologies we’ve used to power the new interface (see also part 1, Instant notifications of new emails via eventsource/server-sent events). Regular users can skip these posts, but we hope technical users find them interesting. As dynamic websites constructed entirely on the client side become de rigueur, there are a number of templating languages battling it out to become the One True Wayâ„...

   Web design,Dynamic,Ajax,UI     2012-02-21 05:32:29

  All Programming is Web Programming

Michael Braude decries the popularity of web programming:The reason most people want to program for the web is that they're not smart enough to do anything else. They don't understand compilers, concurrency, 3D or class inheritance. They haven't got a clue why I'd use an interface or an abstract class. They don't understand: virtual methods, pointers, references, garbage collection, finalizers, pass-by-reference vs. pass-by-value, virtual C++ destructors, or the differences between C# struc...

   Programming,Web programming,Opposite,Views,Web app     2011-11-12 10:38:00

  Programming Language Readability

Lets compare some Python to Haskell for solving the same problem.  The problem we’ll pick is Trie data-structure for auto-completions.  We are interested not so much in the nitty gritty of the algorithm, but in the language style itself.  Auto-complete has been in the programming news a lot recently; both a Python and a Haskell solver have turned up. (I suspect this post got flagged on Hacker News :(  It never got on the front-page despite the rapid upvoting on a n...

   Programming,Readability,Python,Haskell     2012-02-27 04:52:02

  First steps with Scala, say goodbye to bash scripts…

Those who know me are aware that I’ve been following play framework, and actively taking part of it’s community, for a couple of years. Playframework 2.0 is right around the corner, and it’s core is programmed in Scala, so it’s a wonderful opportunity to give this object-oriented / functional hybrid beast a try… Like many others, I will pick a very simple script to give my first steps… Finding an excuse to give Scala a try With a couple of friends we are ...

   Scala,Functional programming,Bash script,Replacement     2012-01-12 06:45:16

  Introducing LocalDB, an improved SQL Express

Updated 2011-11-28: Added reference to the walkthrough of using LocalDB in Visual Studio 2010 and to the new LocalDB Installer. Updated 2011-11-02: Added reference to .NET Framework 4 support for LocalDB in the Q&A section. Introduction It gives me great pleasure to introduce a new version of SQL Express called SQL Express LocalDB. LocalDB is created specifically for developers. It is very easy to install and requires no management, yet it offers the same T-SQL language, programming surfac...

   LocalDB,Microsoft,SQL Express     2012-03-31 00:13:43

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