Frontend

• Have you ever doubted CSS-in-JS? I was a huge antagonist myself until I heard this Max Stoiber's talk.

• Deep dive into React concurrent mode. Get ready for the future!

• "Using React ref and really understanding it are two different pair of shoes" - do you agree? Robin Wieruch explains it in detail.

Node.js

• Node.js v13.10.0 introduced a built-in CLS API, namely, new class AsyncLocalStorage located in the well-known experimental async_hooks module. In this short post you will get familiar with AsyncLocalStorage and its capabilities.

• Worker Threads are gaining a lot of interest from Node.js community nowadays. If you want to learn more low-level details of their implementation, you should read this post.

• Ryan Dahl thinks Deno is mature enough to release 1.0. Check it out yourself.

Java

• This article will help you to gain a deep knowledge of how much memory does a Java object take.

• If you rely on ScheduledThreadPoolExecutor class to execute periodical tasks in a precise time fashion, you might want to read this blog post.

General

• Andy Pavlo gives us a mind-blowing overview of database internals in his series of lectures "Advanced Database Systems". Ever wondered how your favorite tweets are stored? How challenging is it to implement a database at scale? Here is your answer.

• Delta-delta encoding, Simple-8b, XOR-based compression, and more - These algorithms aren't magic, but combined they can save over 90% of storage costs and speed up queries. Here’s how they work.