822: Receipt Printer with JavaScript

822: Receipt Printer with JavaScript

Wes unveils his Hack-Week project —a thermal printer controlled by JavaScript that prints out Sentry.io errors in real-time. Scott and Wes dive into the nitty-gritty of how it works, from the ESC/POS protocol to tackling socket issues, and whether the project was worth the effort. Show Notes 00:00 Welcome to Syntax! 00:38 Brought to you by Sentry.io. 01:10 What is Hack Week? 01:41 The project. Follow the posts on X. 02:40 Why a receipt printer? 03:55 How do these printers work? ESC/POS. 05:20 Communicating with the printer. 07:24 ESC/POS Encoder. ESC/POS Encoder. 08:42 Socket issues. 09:56 Using Transformers.js to stop ‘toxic comments’. Xenova’s toxic-bert. Implementation in Wes’ code. 10:48 Back to socket issues. 12:18 Integrating with Sentry. 15:01 Printing images with Playwright. 16:17 Was it worth it? Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

Episoder(988)

964: Markdown as a CMS is a bad idea

964: Markdown as a CMS is a bad idea

In this potluck episode of Syntax, Wes and Scott answer your questions about keyboard shortcuts, choosing frameworks in the age of AI, markdown vs CMSs, backup strategies, moving countries for work, s...

17 Des 20251h 3min

963: Hardware Hacking with Matt Brown

963: Hardware Hacking with Matt Brown

Scott and Wes chat with YouTuber and security consultant Matt Brown about breaking into IoT devices, extracting firmware, and decoding the hidden tech inside everyday gadgets. Matt shares his methods,...

15 Des 202558min

962: The Home Server / Synology Show

962: The Home Server / Synology Show

Wes and Scott talk about their evolving home-server setups—Synology rigs, Mac minis, Docker vs. VMs, media servers, backups, Cloudflare Tunnels, and the real-world pros and cons of running your own ha...

10 Des 202535min

961: Keeping Up With The Fast and Furious Web

961: Keeping Up With The Fast and Furious Web

Scott and CJ go live from JS Nation NYC to talk about how developers can actually stay current without drowning in the constant churn of new tools and trends. They break down how to see through the fl...

8 Des 202528min

960: Reacting to the Weird + Creative Corners of the Web

960: Reacting to the Weird + Creative Corners of the Web

Wes and Scott talk about the weird, creative corners of the web—from live-coded music with Strudel and wild Hydra visuals to shader wizardry, projection-mapping art, fully synced Christmas lights, and...

3 Des 202527min

959: TypeScript on the GPU with TypeGPU creator Iwo Plaza

959: TypeScript on the GPU with TypeGPU creator Iwo Plaza

Scott and CJ sit down live at JSNation NYC with Iwo Plaza, creator of TypeGPU, to dig into how WebGPU is unlocking a new wave of graphics and compute power on the web. They chat about shader authoring...

1 Des 202525min

958: 2025 Holiday Gift Guide

958: 2025 Holiday Gift Guide

The Syntax team brings us their annual Holiday Gift Guide! They’ve curated the best gadgets, tools, food, and even kitchen essentials for the dev in your life — plus a few treats anyone would love to ...

26 Nov 20251h 5min

957: CSS: Advanced and Obscure

957: CSS: Advanced and Obscure

Scott and Wes face off in a CSS-themed round of STUMP’d, quizzing each other on shape functions, scroll snap types, obscure functions, and long-forgotten spec history. From ray() to cross-fade() to pr...

24 Nov 202537min

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