Learn Ruby with the Neo Ruby Koans Great way to lean Ruby by fixing errors in set of well thought of unit tests.
Programs must be written for people to read, and only incidentally for machines to execute. Hal Abelson and Gerald Jay Sussman in MIT Structure and Interpretation of Computer Programs course (via Brevity vs. Clarity · An A List Apart Blog Post )
Learn X in Y Minutes: Scenic Programming Language Tours Learn X in Y minutes : Take a whirlwind tour of your next favorite language. Community-driven!
The Flipboard Explorer, or FLEX, is a component that you can easily drop into any iOS project. When presented, FLEX shows a debugging toolbar that lives in a window above your app. From this toolbar, you can view and modify nearly every piece of state in the application. Unlike many other debugging tools, FLEX works entirely inside your app, so you donʼt need to be connected to LLDB/Xcode or a different remote debugging server....
The Wilderness It’s a period of time where I’m pretty lost, and I don’t know what to do. I have feature lists, I have open bugs to fix, and I have an outline of where the app is going. But I feel mentally incapacitated, like I’m getting nothing done. I call this “The Wilderness”.
Comercial: Deploy — Deploy code from GitHub, Codebase & BitBucket in minutes! XebiaLabs — Software for Continuous Delivery & DevOps in the Real World Bamboo — Run builds and tests, connects issues, commits, test results, and deploys so the whole picture is available to your entire product team Open-souce: fabric8 — Integration platform for deep management of Java Containers (JVMs). Makes it really easy to provision, automate, configure, and manage from a central location....
Not all technical debt is born the same, because A Mess is not a Technical Debt . (via TechnicalDebtQuadrant )
for each desired change, make the change easy (warning: this may be hard), then make the easy change. Kent Beck
Documenting in Xcode with HeaderDoc Tutorial | Ray Wenderlich When Xcode 5 and iOS 7 were announced, a small addition was mentioned that most people might have missed: HeaderDoc. (…) In addition, Xcode parses HeaderDoc-style comments behind the scenes to automatically present your documentation in quick look panels.
There is, however, old wisdom — perhaps from an earlier version of the Mac HIG — that says how to create error messages: they should be of the form “Can’t x because of y.” They may optionally include additional detail and/or recovery steps. “Can’t x because of y. Something is true. Try a thing.” A similar form is this: “Noun can’t x because y.” (As in “‘Downloaded.app’ can’t be opened because it is from an unidentified developer....
Java 8 Tutorial “Java is still not dead—and people are starting to figure that out.” Welcome to my introduction to Java 8 . (…) At the end of the article you’ll be familiar with the most recent API changes like streams, functional interfaces, map extensions and the new Date API. No walls of text – just a bunch of commented code snippets. Enjoy! Default Methods for Interfaces Lambda expressions Functional Interfaces Method and Constructor References Lambda Scopes Built-in Functional Interfaces Streams Parallel Streams Map Date API Annotations
Bret Victor – Inventing on Principle (by CUSEC ) Their principles Elizabeth Cady Stanton — “Women should vote” Larry Tesler — “No person should be trapped in a mode” Doug Engelbart — “Enable mankind to solve solve the world’s urgent problems” (a vision of “knowledge workers” using complex powerful information tools to harness our collective intelligence) Alan Kay — “Amplify human reach and bring new ways of thinking into a faltering civilisation that desperately need it”...
Code Like a Chef: Work Clean | The Table XI Blog Interesting concept, specially the part gotten from the Ad Hoc at Home cooking book (by Thomas Keller ), which got me to dig out for the full text snippet ( emphasis added): Being organized – as we say in our kitchen, working clean – is a skill to develop. We call it mise-en-place , French for, literally, ‘put in place....
Creators need an immediate connection with what they’re making Bret Victor ’s guiding principle (via his talk Inventing on Principle )
TLDRLegal – Browse License Library Lookup open source licenses summarized & explained in plain English.
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What OO Fails to Do What object oriented programming fails to do is express collaborations between objects. To show you exactly what I mean, let’s take a look at two system operations (two use cases) requiring the same group of objects collaborating with each other. (…) DCI to the Rescue DCI is a paradigm invented by Trygve Reenskaug (the inventor of the MVC pattern) to solve these problems. (via Data Context Interaction: The Evolution of the Object Oriented Paradigm – SitePoint )...
My template for when I need to do bash scripts with both a “human” and a “machine” interface: Template for interactive bash scripts: supports command line options with values prompts for any missing parameters/arguments https://gist.github.com/hugocf/8147608 Update 2016-06-02: Moved to repo @hugocf/scripts
First make it work (get tests to pass). Then make it right (clean it). Then make it fast. (if it needs it). Uncle Bob (via How to convince ‘performance guys’ to Clean Code – Google Groups )