Frontend

• TJ VanToll watched all 27 React Europe talks and provided us with his notes.
• A good read from PayPal on how they approach sharing UI components at their enterprise level.
• A Visual Guide To React Mental Models, Part 2. This time it's useState, useEffect and lifecycles.

Node.js

• Pointer compression is a low-level feature recently introduced in V8. Not only it saves memory, but it improves the performance (surprise!). Hopefully, it will be available in Node.js in the future.
• Did you know that there were experiments with jemalloc in Node.js core? As expected, not a silver bullet, but definitely an interesting read.

Java

• An in-depth overview (with benchmarks!) of modern garbage collectors applied to a stream processing framework.
• While pointer compression is a recent improvement of V8, Hotspot JVM had compressed oops for ages.

General

• Your ultimate guide on learning how to design large-scale systems and prep for the system design interview.
• Joshua Thijssen describes ALL AWS services in one sentence each.
• Most modern server machines have NUMA memory architecture, so modern software has to be NUMA-friendly. If you are not familiar with NUMA yet, check out this post.