Tag: Debugging

Introducing Amazon CodeWhisperer for command line

November 22, 2023 By Mark Otto Off

The command line is used by over thirty million engineers to write, build, run, debug, and deploy software. However, despite how critical it is to the software development process, the command line is notoriously hard to use. Its output is terse, its interface is from…

Say hello to source maps in prod

November 8, 2023 By Mark Otto 0

Headless Component: A Pattern for Composing React UIs — Posting on the Martin Fowler blog, an engineer at Atlassian takes us on a (very) practical journey into the concept of headless components and the pattern of having reusable logic and behavior separate from the presentation…

Testing perfection for Node?

October 10, 2023 By Mark Otto 0

✍️ Due to being on the road attending the inaugural AI Engineer Summit, this week’s issue was meant to be far shorter than usual.. but I’m not sure it’s actually turned out that way 😅 In any case, we’re back to full service next week!__Your…

Comparing test assertion styles in JavaScript

October 5, 2023 By Mark Otto Off

An Interactive Intro to CRDTs — Conflict-free replicated data types (the so-called CRDTs) provide a popular approach to replicate data across numerous clients and allow live collaboration between them without conflicts. This post really digs into what makes CRDTs tick well, complete with interactive examples. Jake…

TypeScript 5.2, Node 20.6, and Astro 3.0

September 7, 2023 By Mark Otto Off

😅 We’re back! After two weeks enjoying the blistering desert heat of Las Vegas and downpours of Storm Hilary, I’m ready to get back to the weekly JavaScript roundups – fingers crossed we’re here each week till Christmas now 🙂__Peter Cooper and the Cooperpress team Good…

Let’s get debugging

June 13, 2023 By Mark Otto 0

Node v20.3.0 (Current) Released — On paper, it’s a minor release, but a libuv upgrade (the library that provides Node with its async I/O functionality) introduces significant performance improvements on Linux, AbortSignal.any() has been introduced, and Ruy Adorno’s presence on the Node.js TSC is officially recognized.…

Hands on with Node’s new built-in test runner

June 6, 2023 By Mark Otto 0

qnm: A CLI Tool to Look Into node_modules — If you’ve been into a node_modules folder and been overwhelmed, this tool (supporting both npm and Yarn) lets you dig around with extra guidance as to what is what. You can use fuzzy search to find…

Bundle-time macros with Bun

June 1, 2023 By Mark Otto Off

JavaScript Macros in Bun — Not content with giving the JavaScript world a brand new bundler, Bun’s Jarred has taken it a bit further: ‘macros’ that run at bundle time with the result being directly inlined into your code. They use stage 3 annotated import…

Microsoft shrunk the TypeScript

May 25, 2023 By Mark Otto Off

DeviceScript: TypeScript for Tiny Thingamabobs — DeviceScript is a new Microsoft effort to take the TypeScript experience to low-resource microcontroller-based devices. It’s compiled to a custom VM bytecode which can run in such constrained environments. (A bit like Go’s TinyGo.) It’s aimed at VS Code…

MS’s new tool for digging deep into V8

May 16, 2023 By Mark Otto 0

‘This Page is Hosted on My Android Phone’ — Since it’s been linked on some pretty big sites already, I don’t feel too guilty about linking it here too ???? This is a link to a blog being hosted from a $180 Android phone that’s…