Accurate Timing
In many tasks we need to do something at given intervals of time. The most obvious ways may not give you the best results.
Exploring Dependent Types in Idris
When I’m not coding the "impossible" at Art+Logic, I take a lot of interest in new programming technologies and paradigms; even if they’re not yet viable for use in production, there can often be takeaways for improving your everyday code.
My current fascination is the Idris programming language, a research language built around making dependent types practical. This is a quick primer on what dependent types are, how they work in Idris, and how they can change the way you think about types in other languages; we’ll assume no prior knowledge of Idris or of purely functional languages in general, but a basic familiarity with functional programming will make things easier to follow.
Legacy Vulnerabilities AKA Software Senescence
Does your business still have an XT computer in the back office because it’s running that one version of some database software that your business depends on? Yeah, we know there is. Most modern software doesn’t work like that.
If you aren’t keeping your custom software up with the changing computing environment, it will fail not necessarily because it has flaws, or the hardware can no longer meet the demand, but because the support your software relies upon has changed.
Let’s look at the vulnerabilities you must manage so that your software does not reach its end of life before losing its inherent usefulness.
Asynchronous Python – A Real World Example
Introduction
We have a customer that developed a hardware device to make physical measurements. Some years ago we wrote a suite of software tools for the customer: a tablet application for configuring the hardware device, a django web server to receive uploaded XML documents generated by the device, and a user-facing web application (using the same django server), providing reporting and data analytics.
Spot the Vulnerability: Data Ranges and Untrusted Input
In 1997, a flaw was discovered in how Linux and Windows handled IP fragmentation, a Denial-of-Service vulnerability which allowed systems to be crashed remotely.
Smooth Upgrades to Vue 3 Using the Migration Build
Vue 3 introduces some compelling new features, but also many breaking changes. The question is, how do you get there? Fortunately, the Vue.js team has recently released the Migration Build, which makes it possible (and easy) to make a smooth transition from v2 to v3.
