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So we are here again talking about Javascript. I have already wrote an article comparing a well known SmallTalk implementation to Javascript. If my ideas are right (at least a bit), you will see more and more javascript on the next months. In particular:
- JavaScript is the Ajax programming languge for the rest of us
- Mobile Framework like PhoneGap and Appcelerator, are all about javascript at the top
- Javascript is evolved, and it is used server side by projects like node.js
Getting Started
JavaScript is a language must be re-learned if you are old like me (i.e. born before 1982).This book will re teach you javascript in ten minutes or so on. A very nice and funny read, for 25 pages!A lot of the things you will read will be new to you, for sure.Studing good librabries is a must. JQuery is a very well written and commented library: grab the full sized source and start reading it.Getting your hands dirty
A good way of learning is trying to make your own errors :)QUnit is a unit-testing framework you can run in your browser, which will be very useful to you.If you prefer nodejs, vows is a continuous integration library which will save your days. I prefer vows in these days, because it can run from the command line, and it is easy to setup.Phase3: Evolving to the next step
Coffee Script is a very instructive language. Look how CoffeeScript renders its code in JavaScript:it will avoid you a lot of mistakes.And this bring us to a very sad rule: discipline in JavaScript is fundamental to avoid nasty bugs.
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Because of the success of my article on java closure, I have decided to write another article on functional programming.
In the last year functional programming is waving back to us, for a lot of reason. Let’s summarize the facts:
Functional programming is based on the core concept of pure function. The main advantages of functional programming is the lack of side-effects, at least at the syntax-level of the language.
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Inversion of Control (IoC) is a very good idea.
But as the clever Joel Spolsky noted, sometimes you need to be a super-natural hero to use it:
… I try not to be judgemental (HAHA!), but I think that people who use IoC containers are (A) very smart and (B) lacking in empathy for people who aren't as smart as they are. Everything makes perfect sense to them, so they have trouble understanding that many ordinary programmers will find the concepts confusing. It's the curse of knowledge. The people who understand IoC containers have trouble believing that there are people who don't understand it. …
I have trouble using Spring in at least two projects. On the third, it was a disaster, because a single software-architect-guy keeps passing around the Spring context factory as method parameter, getting beans from it!
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Inspired by this excellent web post “Ruby or Python? Well, it depends...”,
I agree with it at 100%:Ruby or Python? This is the Question! Well it might not be the Question, but it’s a common question for many developers looking to break free from the statically typed language they know and learn a dynamic language. I personally know them both(though I know a bit more Ruby, than Python) and in this article I’ll share my personal opinion on their strengths and weaknesses. You’d probably do good to learn them both, but my arguments here may lead you to pick only one of the languages depending on you preferences.
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Nei mesi passati ho avuto l’opportunità di lavorare come software architect per un progetto basato su .NET e C#.
Da molti anni non bazzicavo in ambito Microsoft, e quindi è stata una utile palestra. Ho pensato di scrivere questo piccolo manuale per sviluppatori java con la ventura di dover diventare… C#-enabled.
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Utilities like Telnet and remote control programs like Symantec's PC Anywhere let you execute programs on remote systems, but they can be a pain to set up and require that you install client software on the remote systems that you wish to access. PsExec is a light-weight telnet-replacement that lets you execute processes on other systems, complete with full interactivity for console applications, without having to manually install client software. PsExec's most powerful uses include launching interactive command-prompts on remote systems and remote-enabling tools like IpConfig that otherwise do not have the ability to show information about remote systems.
via PsExec. -
Sometimes, a client-based refresh of the session is the only viable option.
Anyway, we must define this a “bad idea”, because you can end up stuffing even more problems on your architecture…
Now this is something that may or may not be useful to a lot of people, depending on you situation, you may want the user to elect to refresh their Session or not (like banks usually do); but this is for applications that may have a lot of idle time and users are annoyed with their Sessions dying... considering most users don't know what a Session is, but they know that the application stops working correctly.
via Automatically refresh your user’s Session behind the scenes using jQuery and Asp.Net.It uses jQuery and is incredibly simple, just a few lines of code, and no screen flicker or any annoyance to the user at all; ignorance is bliss. First I include the following in the code-behind in any page you need to keep refreshed (works on masterpages as well)[…]
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- Download this patch for the visual studio 2008 SP1
- Download the documentation file from this link http://code.jquery.com/jquery-1.4.1-vsdoc.js
- Take a rest near the Coffe machine and convert there your co-workers
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I have used Google in the past 8 years (I know, I am a bit old). Then I was annoyed because of a bad behavior of Google with my AdSense account (shutdown without being able to talk back to someone for explanation).
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