programming

In programming, Booleans and Enumerates are common data types to represent the concept of “choice”. When there are several things to choose from, the Enumerate is the only one to support it, so that’s clear. But what about when you have two things to choose from? There might be some confusion between both data types since either of them supports handling binary choices. The confusion arrises in particular when you want to add the choice of a new behaviour, on top of an existing one....

Pop quiz about PHP and something we’ve stumbled upon last week, while working on a client’s codebase. ...

Comparison between different ways of doing enumerates, with scala.Enumeration, case object and Java’s Enum.

Learn Ruby with the Neo Ruby Koans Great way to lean Ruby by fixing errors in set of well thought of unit tests.

With practice, this new mental map of color will become instinctive: you’ll likely find that it is much easier to create and manipulate color specified in HSL in your stylesheet code than hex or RGB. See also Three Ways You Should Be Using HSL Color In Your Site Today.

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for each desired change, make the change easy (warning: this may be hard), then make the easy change. Kent Beck

(via What’s wrong with this picture? | Code.org ) Computer science is a top paying college degree and computer programming jobs are growing at 2x the national average . Less than 2.4% of college students graduate with a degree in computer science. And the numbers have dropped since last decade. See also Promote Computer Science | Code.org

Type-System Criteria · ongoing by Tim Bray Cri­te­ria Let’s call them the Bánffy-Bray cri­te­ria for se­lect­ing be­tween sta­tic and dy­namic type sys­tems. Sta­tic typ­ing’s at­trac­tive­ness is a di­rect func­tion (and dy­namic typ­ing’s an in­verse func­tion) of API sur­face size. Dy­namic typ­ing’s at­trac­tive­ness is a di­rect func­tion (and sta­tic typ­ing’s an in­verse func­tion) of unit test­ing work­a­bil­ity.

Online interactive resources to learn programming: Learn | Code.org — Beginners (concepts), HTML/CSS, JavaScript, Python, Codecademy — HTML/CSS, JavaScript, jQuery, PHP, Python, Ruby Learn Code The Hard Way — Python, Ruby, C, SQL, Regex, CLI Try Ruby: learn the basics of the Ruby language in your browser