Software

TypeScript in the Wild

When I previously used JavaScript, the grand debate was which JS utility library to use: jQuery vs. mootools vs. YUI vs. dojo. While I’m glad this tradition of grand debates has continued (Angular vs. React vs. Vue), the community has also quickly coalesced around the biggest improvement to JavaScript in the last decade: TypeScript.

In this post, I want to talk about my experience migrating an existing JavaScript codebase to TypeScript. But first, a quick digression on why I love TypeScript, and how TypeScript is the culmination of a number of great ideas in PL.

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Posted by andrew in Software, 0 comments

On the importance of software testing

As the famous programmer Jean-Paul Sartre once put it, hell is other people’s code. This is what echoes through your head when you’re jolted awake at 2AM by PagerDuty, blaring about a Sev0 production outage. You trawl through the changelog to find the offending commit: a missing null check that results in an exception. You start rolling back the bad deploy, but as you sit there, illuminated by the glow of your laptop screen, you curse to yourself: how did a simple error like this make it all the way to production?

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Posted by andrew in Software, 0 comments