The Daily Index — Monday, December 4, 2023 · TLDR Index

ARTICLES & TUTORIALS

TLDR Web Dev

TLDR Web Dev

LET’S LEARN HOW MODERN JAVASCRIPT FRAMEWORKS WORK BY BUILDING ONE

Building your own JavaScript framework can help understand how frameworks work at the most foundational level. This article covers the 3 fundamental parts of modern JavaScript frameworks: reactivity, DOM rendering, and modern API integration. It uses code examples to demonstrate how to build these features into your own framework step by step.

nolanlawson.com · 17 min

TLDR Web Dev

TRACK FRONTEND JAVASCRIPT EXCEPTIONS WITH PLAYWRIGHT FIXTURES

Asynchronous JavaScript code presents challenges in conducting end-to-end testing and synthetic monitoring in modern JavaScript-heavy web applications. This article highlights the common practice of testing only mission-critical features and suggests implementing a safety net to catch obvious application problems, such as JavaScript exceptions, while testing end-to-end. The article provides a detailed guide on how to set up Playwright, a testing framework, to monitor JavaScript exceptions during end-to-end tests.

checklyhq.com · 11 min

TLDR Web Dev

LEAD AND INFLUENCE: LESSONS FROM AN EX-UBER STAFF ENGINEER

Irina Stanescu is an ex-Uber Staff engineer who has worked as a tech lead and manager over the past 8 years. This interview explores the guiding principles that have helped Irina become an effective leader. She teaches how to lead by influencing and discusses how you can show others around you that you’re a leader by communicating effectively, taking initiative, and handling disagreements professionally.

careercutler.substack.com · 12 min

TLDR Web Dev

YOU DON'T NEED JAVASCRIPT FOR THAT

The popular concept of least power dictates that the least powerful language should be chosen to accomplish a specific task. Applying this to web development means finding ways to use less JavaScript in favor of the declarative languages that power the web: CSS and HTML. This article shows you how to use CSS and HTML to create features and components we commonly use JavaScript for, like dialogue modals and menu accordions.

htmhell.dev · 11 min

TLDR Web Dev

A TECH CONFERENCE LISTED FAKE SPEAKERS FOR YEARS: I ACCIDENTALLY NOTICED

A tech conference called DevTernity had women speakers on their website who did not exist in real life. For 3 years straight, the DevTernity conference listed non-existent software engineers representing Coinbase and Meta as featured speakers. This addition of fake women speakers happened after the conference organizers were called out a few years ago for having an all-male panel.

blog.pragmaticengineer.com · 9 min

TLDR Web Dev

HOW UBER COMPUTES ETA AT HALF A MILLION REQUESTS PER SECOND

Every Uber ride requires around 1000 ETA requests - more than 18 million Uber rides are completed daily. Accurate ETA calculations are essential to their business function, yet this is a surprisingly complex problem to solve. This article explains how routing algorithms, traffic information, and map matching are used by Uber engineering teams to correctly project ETA for their customers.

newsletter.systemdesign.one · 6 min

TLDR Web Dev

ASK HN: WHAT SIDE PROJECTS LANDED YOU A JOB? (HACKER NEWS THREAD)

Hacker News commenters write about what side projects helped them land a job.

news.ycombinator.com

TLDR Web Dev

A SIMPLE WEBSOCKET BENCHMARK IN JAVASCRIPT: NODE.JS VERSUS BUN

A benchmark comparing WebSocket performance in JavaScript found that Bun was 40% faster than Node.js. Bun became twice as fast when the JavaScript was written to be bun-specific.

lemire.me · 5 min