Around one year ago, I had started experimenting with concepts of creating programming languages. I first started with building few DSLs (Domain Specific Languages) using Ruby and Boo. It was quite interesting to work on development of DSLs. While doing this, I learnt a lot about how the programming languages are developed. Eventually, I thought [...]
Yesterday I was reading an article on “How to Uninstall Symantec AntiVirus”. The article was from EzineArticles. While reading it, I suddenly noticed that the AdSense block is showing a complete unrelated ad on the page. Take a look at the screen-shot below. For those who don’t know, Deepika Padukone is a bollywood actress. The [...]
In Ruby on rails, methods that generate urls from named routes are not globally accessible. For example, you can’t access them from console (script/console). If you want to use these methods from such places, then the rails documentation for ActionController::UrlWriter suggests two ways of doing it. According to this documentation, you can: Include ActionController::UrlWriter in [...]
While testing methods that return boolean values in ruby (the ones that end in ‘?’), try to avoid following matchers: method_returning_true?.should be_true or method_returning_false?should be_false This is because, ‘be_true’ and ‘be_false’ matchers considers ‘nil’ to be false and anything other than ‘nil’ to be true. When we write methods in ruby which end with question [...]
Few days ago I came across a story here. In this story, an assembly line worker suggests a simple, low-cost but highly effective solution to the problem for which engineers had developed a complex and expensive solution. Why am I referring to this story today? Because, I notice lot of people having a misconception that [...]
Today I came across an online tool that allows you to see the screenshot of pages in the google search result. You can give it a try at “Veesual.com” While I found the concept to be interesting, I was wondering what could be the use of looking at screenshots of pages in search result. What [...]
Consider the following class in C# public class Person { private string name; private int age; public string Name{ get {return name;} set { name = value; } } public int Age{ get {return age;} set { age = value; } } } If I want to set the value of Name and Age property [...]
Yesterday I installed and activated Blass2 theme for this blog. I liked this theme as it was very simple and free from any extra graphics. After installing the theme, I discovered that “SyntaxHighlighter Evolved” plugin which I use to display code segments, was not working. I searched for other themes which are similar to blass2 [...]
If we want to share a file or photos while chatting with our friends on internet using IM tools like GTalk, we use file sharing services available online. These services allow us to upload a file to their servers and give us a link which we can share with our friends. But what if you [...]
Today, I managed to install Mono 2.4 in Ubuntu 9.04 without affecting Ubuntu’s default mono installation. Thanks to the instructions here (Building Mono 2.4 from source on Ubuntu 8.10), I was able to install latest mono/monodevelop in a parallel environment. Now I can work on C# 3.5 code in Linux as well. Here is the [...]