// Good: choose between two options as appropriate (see below). import * as ng from '@angular/core'; import {Foo} from './foo'; // Only when needed: default imports. import Button from 'Button'; // Sometimes needed to import libraries for their side effects: import 'jasmine'; import '@polymer/paper-button'; Import paths TypeScript code must use paths to import other TypeScript code. Paths may be r
How I built a modern website in 2021September 29th, 2021 — 34 min read For over half of 2021, I worked on a complete rewrite of kentcdodds.com. You're reading this on the rewrite of this site! Are you using dark mode or light mode? Have you signed in and selected your team yet? Have you tried to call into the Call Kent Podcast? This blog post isn't about these and other features of the new site, b
REST API Design Best Practices Handbook – How to Build a REST API with JavaScript, Node.js, and Express.js
By Jean-Marc Möckel I've created and consumed many API's over the past few years. During that time, I've come across good and bad practices and have experienced nasty situations when consuming and building API's. But there also have been great moments. There are helpful articles online which present many best practices, but many of them lack some practicality in my opinion. Knowing the theory with
Developers are increasingly relying on AI coding assistants to accelerate our daily workflows. These tools can autocomplete functions, suggest bug fixes, and even generate entire modules or MVPs. Yet, as many of us have learned, the quality of the AI’s output depends largely on the quality of the prompt you provide. In other words, prompt engineering has become an essential skill. A poorly phrased
Preliminaries What Is xargs? It's an adapter between text streams and argv arrays, two essential concepts in shell. You pass it flags that specify how to split stdin. Then it generates arguments and invokes processes. Example: $ echo 'alice bob' | xargs -n 1 -- echo hi hi alice hi bob What's happening here? xargs splits the input stream on whitespace, producing 2 arguments, alice and bob. We passe
With pen and paper, anyone can write a journal entry, draw a diagram, perform a calculation, or sketch a cartoon. Digital tablets like the iPad or reMarkable can adapt pen and paper into the world of digital media. In doing so, they trade away some of paper’s advantages like cheapness and tangibility. In exchange, we get new computational powers like nondestructive editing and ease of transmission
Sublime Text 4
The first stable release of Sublime Text 4 has finally arrived! We've worked hard on providing improvements without losing focus on what makes Sublime Text great. There are some new major features that we hope will significantly improve your workflow and a countless number of minor improvements across the board. A huge thanks goes out to all the beta testers on discord and all the contributors to
Nic Jansma (@nicj) is a software developer at Akamai building high-performance websites, apps and open-source tools. Table of Contents The JS Self-Profiling API What is Sampled Profiling? Downsides to Sampled Profiling API Document Policy API Shape Sample Interval Buffer Who to Profile When to Profile Specific Operations User Interactions Page Load Overhead Anatomy of a Profile Beaconing Size Comp
WebKit Features in Safari 17.4
ContentsArchitectural improvementsWeb AppsForm elementsCSSWeb APIJavaScriptMediaSVGWebGLWeb AssemblyWeb InspectorChanges to SafariSafari ExtensionsWeb AuthenticationBug Fixes and moreUpdating to Safari 17.4Feedback Just like Safari 15.4 and Safari 16.4, this March’s release of Safari 17.4 is a significant one for web developers. We’re proud to announce another 46 features and 146 bug fixes. You ca
Highlights This is a summary of the significant changes, both breaking and non-breaking, you need to know about when upgrading from ESLint v8.x to ESLint v9.0.0. Installing Because this is a major release, you may not automatically be upgraded by npm. To ensure you are using this version, run: npm i eslint@9.0.0 --save-dev Copy code to clipboard Migration Guide As there are a lot of changes, we’ve
The string is arguably the most essential data type in programming — every programming language and software in the world uses strings in one way or another. It enables humans to easily communicate with sophisticated programs and machines. One thing that would help you a lot as a programmer is understanding how to use and manipulate strings so that you can build programs users love. Regular expres
The proposal “Pipe operator (|>) for JavaScript” (by J. S. Choi, James DiGioia, Ron Buckton and Tab Atkins) introduces a new operator. This operator is an idea borrowed from functional programming that makes applying functions more convenient in many cases. This blog post describes how the pipe operator works and what its use cases are (there are more than you might expect!). The two competing pro
Summary Introduce virtual threads to the Java Platform. Virtual threads are lightweight threads that dramatically reduce the effort of writing, maintaining, and observing high-throughput concurrent applications. This is a preview API. Goals Enable server applications written in the simple thread-per-request style to scale with near-optimal hardware utilization. Enable existing code that uses the j
I’m a fairly frequent Hacker News lurker, especially when I have some other important task that I’m avoiding. I normally head to the Active page (lots of comments, good for procrastination) and pick a nice long discussion thread to browse. So over time I’ve ended up with a good sense of what topics come up a lot. “The Bay Area is too expensive.” “There are too many JavaScript frameworks.” “Bootcam
We've talked quite a bit about linting in the past two posts of this series, so I thought it's time to give eslint the proper limelight it deserves. Overall eslint is so flexible, that you can even swap out the parser for a completely different one. That's not a rare scenario either as with the rise of JSX and TypeScript that is frequently done. Enriched by a healthy ecosystem of plugins and prese
After almost three years since the initial design document and hundreds of CLs in the meantime, the V8 Sandbox — a lightweight, in-process sandbox for V8 — has now progressed to the point where it is no longer considered an experimental security feature. Starting today, the V8 Sandbox is included in Chrome's Vulnerability Reward Program (VRP). While there are still a number of issues to resolve be
prompts.chat
Welcome to the “Awesome ChatGPT Prompts” repository! While this collection was originally created for ChatGPT, these prompts work great with other AI models like Claude, Gemini, Hugging Face Chat, Llama, Mistral, and more. ChatGPT is a web interface created by OpenAI that provides access to their GPT (Generative Pre-trained Transformer) language models. The underlying models, like GPT-4o and GPT-o
Reading the excellent article by JeanHeyd Meneide on how broken string encoding in C/C++ is made me realise that Unicode is a topic that is often overlooked by a large number of developers. In my experience, there’s a lot of confusion and wrong expectations on what Unicode is, and what best practices to follow when dealing with strings that may contain characters outside of the ASCII range. This a
// Good: choose between two options as appropriate (see below). import * as ng from '@angular/core'; import {Foo} from './foo'; // Only when needed: default imports. import Button from 'Button'; // Sometimes needed to import libraries for their side effects: import 'jasmine'; import '@polymer/paper-button'; Import paths TypeScript code must use paths to import other TypeScript code. Paths may be r
Large Text Compression Benchmark Matt Mahoney Last update: July 3, 2025. history This competition ranks lossless data compression programs by the compressed size (including the size of the decompression program) of the first 109 bytes of the XML text dump of the English version of Wikipedia on Mar. 3, 2006. About the test data. The goal of this benchmark is not to find the best overall compressi
React Best Practices – Tips for Writing Better React Code
By Jean-Marc Möckel Two years ago, I started to learn and use React. And today I'm still using it at my day job as a Software Developer and in my own side projects. During that time I've come across a lot of "typical" issues. So I searched around and found some best practices that I've integrated into my workflow, and I've come up with things that have made my life or my team members' lives easier
What's New In DevTools (Chrome 101) | Blog | Chrome for Developers
Import and export recorded user flows as a JSON file The Recorder panel now supports importing and exporting user flow recordings as a JSON file. This addition makes it easier to share user flows and can be useful for bug reporting. For example, download this JSON file. You can import it with the import button and replay the user flow. Apart from that, you can export the recording as well. After r
Bloom Filters - Much, much more than a space efficient hashmap! | Ben E. C. Boyter
Bloom Filters - Much, much more than a space efficient hashmap! 2020/12/10 (2440 words) A bloom filter is one of those data structures you are probably already aware of, or have at least heard about. For those looking for a simple recap, they are a probabilistic data structure which can be used to determine if something is in a set or not, giving a slight chance of returning a false positive resul
Liskov's Gun: The parallel evolution of React and Web Components
Liskov's Gun: The parallel evolution of React and Web Components Because this essay is over 11 000 words long(!) I’ve made a convenience EPUB file for offline reading. (EPUB only! No PDF this time.) You can download it over on the fulfilment service I use, Lemon Squeezy, with the option to pay what you want if you feel the urge to support my writing. Paying is absolutely optional. Web dev keeps ar
Announcing Scala.js 1.4.0
Jan 12, 2021. We are excited to announce the release of Scala.js 1.4.0! This release complements the module splitting support, introduced in Scala.js 1.3.0, with support for dynamic module loading. It is now possible to structure an application such that specific features are only loaded if necessary, the first time they are used. In addition, this release significantly improves the performance of
In the previous post, I covered how I reimplemented JSON::Generator::State#configure in Ruby and some other changes. Unfortunately, it didn’t go as well as I initially thought. Mistakes Were Made The default gems that ship with Ruby are automatically copied inside ruby/ruby’s repo. In short, there’s a bot aptly named matzbot, that replicates all the commits from the various ruby/* gems, inside rub
GitHub - ComfyUI-Workflow/awesome-comfyui: A collection of awesome custom nodes for ComfyUI
ComfyUI-Gemini_Flash_2.0_Exp (⭐+172): A ComfyUI custom node that integrates Google's Gemini Flash 2.0 Experimental model, enabling multimodal analysis of text, images, video frames, and audio directly within ComfyUI workflows. ComfyUI-ACE_Plus (⭐+115): Custom nodes for various visual generation and editing tasks using ACE_Plus FFT Model. ComfyUI-Manager (⭐+113): ComfyUI-Manager itself is also a cu
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Google TypeScript Style Guide
How I built a modern website in 2021
The Prompt Engineering Playbook for Programmers
An Opinionated Guide to xargs
Inkbase: Programmable Ink
JS Self-Profiling API In Practice
ESLint v9.0.0 released - ESLint - Pluggable JavaScript Linter
The ultimate JavaScript regex guide
A pipe operator for JavaScript: introduction and use cases
JEP 425: Virtual Threads (Preview)
Hacker News folk wisdom on visual programming
Speeding up the JavaScript ecosystem - eslint
The V8 Sandbox · V8
Unicode is harder than you think · mcilloni's blog
Google TypeScript Style Guide
Large Text Compression Benchmark
Optimizing Ruby’s JSON, Part 3