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New
The latest blog posts to take off on Hacker News. 21,843 posts.
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“Let's settle this in a Ruby programming contest”
Introducing Codebrawl, a Ruby and open source programming contest website
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The protocol-relative URL
Update 2014.12.17: Now that SSL is encouraged for everyone and doesn’t have performance concerns , this technique is now an anti-pattern . If the asset you need is available on SSL, then always use the https:// asset.
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Things you (probably) didn't know about xargs
If you’ve spent any amount of time at a Unix command line you’ve probably already seen xargs . In case you haven’t, xargs is a command used to execute commands based on arguments from standard input.
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Profiling Go Programs
How to use Go's built-in profiler to understand and optimize your programs.
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10000 things all CS students should do before graduating
It’s Commencement time! So I thought I’d compile a list of 1010 10000 things I believe all ICS students should have done (by themselves) by the time they get their diplomas. With luck, students have come across some of these in courses. Most likely, that won’t happen, so students need to make time for extra-curricular…
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Announcing my first e-book "Awk One-Liners Explained"
Buy it now for just $19.99 Hello everyone! I have awesome news – I just wrote my first e-book ever. It's called Awk One-Liners Explained and it's based on the Awk One-Liners Explained article series that I wrote here on my blog a few years ago and that has been read over 2,000,000 times. I went through all the...
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Advice From An Old Programmer
You've finished this book and have decided to continue with programming. Maybe it will be a career for you, or maybe it will be a hobby. You'll need some advice to make sure you continue on the right path and get the most enjoyment out of your newly chosen activity.
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Engineering hints you'll rarely hear
Explore the latest technologies and innovations on the architecture engineered for agility
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Pdf.js: Rendering PDF with HTML5 and JavaScript
Update: I updated the links again. pdf.js has moved to a new location on github. Why? While traveling to the Firefox 4 launch parties in Seoul and Taipei all the way from California, we killed a lo…
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ORM is an anti-pattern
ORM looks great early in a project but breaks down as complexity grows, forcing you to learn SQL anyway. Relations aren't objects. Either use NoSQL for object-like data or write a model layer with real SQL. ORM's abstraction is leaky, its efficiency poor, and the alternatives are better.
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Fantastic summary of some of the math pertinent to theoretical computer science.
This web page is a revised and extended version of Appendix A from the book Conceptual Structures by John F. Sowa. It presents a brief summary of the following topics for students and general readers of that book and related books such as Knowledge Representation and books on logic, linguistics, and computer science.
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The Difference Between A Developer, A Programmer And A Computer Scientist
How a computer scientist, a programmer and a developer differ in skills, focus and priorities, even though the terms are often used interchangeably.
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A possible flaw in open-source bcrypt implementations
[NOTE: See updates below and here .] I'm working on an application that requires a secure password hash. The state of the art is Colin Perc...
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What’s Up With All These Changes in Rails?
Yesterday, there was a blog post entitled "What the Hell is Happening to Rails" that stayed at the number one spot on Hacker News for quite a while. The post and many (but not most) the comments on the post reflect deep-seated concern about the recent direction of Rails.
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WTH is happening to Rails? I'll tell you.
I just read the blog post that got some traction on HN last night, entitled “ What the hell is happening to rails? ” It goes on to list a litany of complaints against changes in Rails 3.x, ranging from the default commenting of the catch-all route to, yes, of course, CoffeeScript. They all end up sounding a lot like…
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