Every blog post that took off on Hacker News, ranked by the votes of its best submission. 21,842 posts.
This week, I’ve been working on an application that sets up IPsec connections. PF_KEYv2 is the standard interface for configuring IPsec. PF_KEYv2 is widely-available; even systems with more advanced IPsec stacks (like XFRM on Linux) provide a PF_KEYv2-compatible wrapper. I want my application to work on OS X and…
A wifi-deploying tank robot controlled with JavaScript/Node.js.
Almost two years after the release of KDevelop 4.7, we are happy to announce the immediate availability of KDevelop 5.0. KDevelop is an integrated development environment focusing on support of the C++, Python, PHP and JavaScript/QML programming languages. Many important changes and refactorings were done for version…
When developing on a feature branch or a fork, your code can often get out of date. There are a number of reasons this might happen: You’re concentrating on a feature rather than syncing. You’re not yet ready to worry about integrating just yet. You’re returning to a stale branch or fork to pick up […]
Attached Code: https://github.com/iainkfraser/cache_transpose Before we begin, the underlined words are briefly described in the gloss...
Depending on your age, your first computer might have been an Apple II, a Radio Shack TRS-80, an IBM PC, an Apple Macintosh, or another of the early personal computers. If you missed these early machines the first time around, perhaps you have seen them in the Personal Computer section of the Revolution exhibit at the…
A follow-up on a previous story, in which we identify another problem, and perhaps confirm a theory through a theorem.
How to inspect the network traffic of an app with Fiddler Everywhere and scrape the data from its servers.
You have heard your grandmother tell you many times: parallel programming is hard. In 2022, does it still have to be? Back in grandma’s heyday, they knew a cool and breezy way to do paralleli…
In 1996, Paul Kocher published a novel attack on RSA, specifically on RSA implementations , that extracted information on the private key by simply measuring the time taken by the private key operation on various inputs. It took a few years for people to accept the idea that such attacks were practical and could be…
An extensively updated and expanded version of the best-selling first edition. Now covers recent and more advanced features of Haskell.
There is an increasing number of libraries which are described as high performance and have benchmarks to back that claim up. Here is a sele...
Little Lisp is an interpreter that supports function invocation, lambdas, lets, ifs, numbers, strings, a few library functions, and lists. I wrote it for a l...
In this tutorial, you are going to learn the basics of Vue.js. While we learn, we are going to build a Todo app that will help us to put in practice what we learn.
One of the more interesting design challenges with go-github (and subsequently the one that results in the most questions) is the use of pointers for most all of the fields in our structs that are marshaled and passed to the GitHub API. After a fair amount of trial and error, I settled on the approach that I’m going…
Overview We've been working with, building, and evangelizing message queues for the last year, and it's no secret that we think they're awesome. We
Capacitor vendors don't want you to know this! Save money on capacitors by spending more on other components
An introduction to the Go context package.
In Chapter 1 , I asserted that the grammar of Lisp is uniform: every expression is a list, beginning with a verb, and followed by some arguments. Evaluation proceeds from left to right, and every element of the list must be evaluated before evaluating the list itself. Yet we just saw, at the end of Sequences , an…
Over the past year or so I’ve almost doubled the speed of SpiderMonkey’s JavaScript parser. I did this by speeding up both the scanner ( bug 564369 , bug 584595 , bug 588648 , bug 639420 , bug 645598 ) and the parser ( bug 637549 ). I used patch stacks in several of those bugs, and so in those six bugs I actually…
Resurrecting an old tradition of this blog, let’s take a simple problem, go over a way too long list of alternative solutions, and evaluate their merits. Our simple problem is this: we want t…
Combobulate is a package that adds advanced structured editing and movement to many programming modes in Emacs. Here's how it works, and how it can enrich your editing experience in Emacs.
