Best of 2022

The blog posts Hacker News loved most in 2022. 1,551 posts.

Software Engineering
634

Using unwrap() in Rust is okay

One day before Rust 1.0 was released, I published a blog post covering the fundamentals of error handling . A particularly important but small section buried in the middle of the article is named “ unwrapping isn’t evil ”. That section briefly described that, broadly speaking, using unwrap() is okay if it’s in…

644

Happy 10th Birthday, Sidekiq

It’s hard for me to believe these words but I pushed Sidekiq’s first commit on Jan 16th, 2012. Ten years ago. The public announcement. One month later. One quarter later. Some context for those new to this blog: Sidekiq is the most popular background job system for the Ruby programming language. Every application has…

656

Neural network from scratch

In this edition of Napkin Math, we’ll invoke the spirit of the Napkin Math series to establish a mental model for how a neural network works by building one from scratch. In a future issue we will do napkin math on performance, as establishing the first-principle understanding is plenty of ground to cover for today!