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Programming Exercises for any language.

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How to contribute to an Open Source project?

In the article on how to prepare for a Perl job interview, I mentioned, one of the best ways to improve your hireability is to constantly learn new things, and constantly improve yourself. The same is true for any language and technology.

Probably the best way to do that is by building something. If it is an open source project it has the added benefit that you can show the results to the prospective employer.

You don't even have to build something from scratch, you can also contribute to an existing project.

But how? And do you need to be an expert or can a beginner join a project?


How to contribute to an Open Source project?


X-forwarding to run GUI program in Vagrant box

How can run a desktop GUI application inside my headless VirtualBox that was launched via Vagrant ?

I already had an explanation on how to set up Vagrant with VirtualBox. I assume you already have all that set up.


X-forwarding to run GUI program in Vagrant box


Filters in AngularJS

Filters in AngularJS have two major uses.

Some filters work as the map function in Perl, Python, Ruby, JavaScript and in many other languages. They allow us to apply some transformation to one or more values at once. Among many other things this can be used to change how a single value is displayed.

Other filters are similar to the grep function in Perl, which is called select in Ruby, and filter in Python and JavaScript. These filters usually apply to a list of values and return a subset of the original values. They filter out certain values using some condition.


Filters in AngularJS