TLDR WEB DEV 2024-09-20

INTRODUCING NETFLIX'S KEY-VALUE DATA ABSTRACTION LAYER

Netflix's Key-Value Data Abstraction Layer (KV DAL) addresses challenges the company had with datastore misuse by providing a consistent interface layer over storage to application developers. This abstraction offers a two-level map architecture and supports usage through basic CRUD APIs, complex multi-item and multi-record mutations, and efficient handling of large blobs through chunking. It uses idempotency tokens, client-side compression, and adaptive pagination for predictable performance.

COMPILE AND RUN C IN JAVASCRIPT

Bun 1.1.28 introduces experimental support for compiling and running native C code directly from JavaScript. This allows developers to utilize system libraries and APIs that are not directly accessible through JavaScript, overcoming the limitations of N-API and WebAssembly. This article goes over how Bun does it by using TinyCC for fast in-memory compilation that provides near-zero call overhead.

HOW TO REASON ABOUT EXCEPTIONS

While every function has the potential to throw an exception, it's more helpful to think about whether the entire function succeeds or fails rather than focusing on individual operations that could cause errors. Make functions more simple to improve readability and reasoning and write clean-up code that keeps a consistent program state regardless of how the function exits.

STOP DESIGNING YOUR WEB APPLICATION FOR MILLIONS OF USERS WHEN YOU DON'T EVEN HAVE 100

It doesn't make sense to over-engineer web apps by focusing on scalability from the beginning, especially when the user base is still small. Spending time and resources on building for millions of users before even having 100 users is a waste of time and money. It is more important to focus on creating a product that people want, gathering user feedback, and iterating quickly.

STOP USING SERIAL IN POSTGRES

It's better to use identity columns instead of using the serial data type in Postgres. This is because `serial` has several issues, like permission complexities, a lack of integrity guarantees, and awkward ergonomics. Identity columns provide a better way to manage auto-incrementing primary keys and are also compliant with the SQL standard.

🛝 TRY THE QRVEY DEVELOPER PLAYGROUND (UNGATED)

TS-REMOVE-UNUSED

This tool automatically cleans up TypeScript code by removing unused exports, deleting modules with no referenced exports, and reporting these changes without making modifications in check mode.

CONFORM

Conform is a type-safe form validation library that uses web fundamentals to progressively enhance HTML Forms. It gives users control of the full form control lifecycle and has full support for server frameworks like Remix and Next.js.

SELECTABLE

Selectable is a mobile app that lets you access your Postgres databases with a mobile-optimized experience. It lets you write complex SQL queries easily on the go.

TECH JOBS ARE GONE AND NOT COMING BACK

The tech job market has changed a lot, with constant layoffs and hiring freezes. The surge in hiring during the pandemic has reversed, leading to a decrease in demand for software developers and a struggle for entry-level positions. While companies are focusing on AI development, leading to high demand for specialists in that field, the overall job market for tech workers is much more competitive than before.

LEGACY MODERNIZATION MEETS GENAI

Generative AI can be used to modernize legacy code. This article goes over a tool that combines an LLM with a knowledge graph derived from a legacy codebase, allowing it to understand existing code and extract low-level requirements, build high-level explanations, and even generate automated documentation.

PAYING DOWN TECH DEBT: FURTHER LEARNINGS

While it's important to address tech debt incrementally, sometimes a codebase requires a significant rewrite. Rewrites like these need management support, careful planning, and stakeholder buy-in.

AI-GENERATED CODE IS CAUSING OUTAGES AND SECURITY ISSUES IN BUSINESSES

AI-generated code is causing downtime and security issues in businesses due to insufficient code reviews and developers' tendency to trust AI too readily.

HOW MUCH GPU MEMORY IS NEEDED TO SERVE A LARGE LANGUAGE MODEL (LLM)?

A popular LLM interview question is to calculate the GPU memory needed to run inference for different LLMs - this can be done with a simple formula.

SIMPLE ICONS

A collection of over 3,000 free SVG icons for popular brands.

THE ARRIVAL OF JAVA 23

Java 23 is now available, with language improvements, API updates, performance optimizations, and tooling changes.