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What makes JavaScript great is also what makes it frustrating to debug. Its asynchronous nature makes it easy to manipulate the DOM in response to user events, but it also makes it difficult to locate problems. And JavaScript’s ubiquity has resulted in a variety of runtimes (e.g. Chromium’s V8, Safari’s JavaScriptCore, and Firefox’s SpiderMonkey) but having so many platforms can cause dizzying idiosyncracies — all of which need to be supported equally.

When building serverless applications, Lambda functions often form the backbone of the system. They might provide just a few lines of code, but these lines are usually what hold the whole architecture composed of many managed services together. Event-driven architecture is what this style is called, and it’s most prevalent in serverless applications. API gateways collect requests from your users, convert them to events, and send these along the way.

This post is a brief overview on how the Undefined Behavior Sanitizer can be used to trap unintentional or error prone parts of a C program. We’re going to look at how it’s used on a desktop program, as well as a way to use it in small embedded programs!

How many days off have been marred by debugging race conditions and deadlocks in complex multithreaded, Java code? You’ve probably vowed, Never again and embarked on a quest to always catch race condition errors early by writing tests and debugging. Multithreaded applications are a great way to improve performance, but they also make routine tasks like debugging a little more complicated.

Here are the articles, videos, and tools that we’ve been excited about this May. We hope you enjoy these links, and we look forward to hearing what you’ve been reading in the comments or on the Interrupt Slack.

Debugging is one of the most critical aspects of software development cycles. Developers not only leverage it to find and fix errors, but also to uncover potential performance issues in the code. Being able to debug is a core skill every developer needs to have in order to provide valuable, scalable solutions.