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Ruby memoization - Code with Jason

Ruby memoization - Code with Jason Memoization is a performance optimization technique.The idea with memoization is: “When a method invokes an expensive operation, don’t perform that operation each time the method is called. Instead, just invoke the expensive operation once, rememb...

The Bike Shed: 336: Million Dollar Password

The Bike Shed: 336: Million Dollar Password Chris came up with a mnemonic device: Fn-Delete – for when he really wants to delete something and is also thinking about password complexity requirements, which leads to an exciting discussion around security theater.Steph talks about the upcomin...

The four phases of a test - Code with Jason

The four phases of a test - Code with Jason When writing tests, or reading other people’s tests, it can be helpful to understand that tests are often structured in four distinct phases.These phases are:SetupExerciseAssertionTeardownLet’s illustrate these four phases using an example.

ruby-syntax-tree.github.io

ruby-syntax-tree.github.io A lot of good tools exist in the Ruby ecosystem that allow you to run some version of Ruby in the browser. I’m talking about tools like try.ruby-lang.org, runruby.io, and sorbet.run.Usually getting Ruby to run in the browser entails using emscript...

Difference between count, length and size in an association with ActiveRecord

Difference between count, length and size in an association with ActiveRecord With Rails/ActiveRecord, you can count the records in an association using three methods .count, .length, .size.As a rails newbie, when you first discover this, it can be confusing… Why do we need three methods? Is there any advantage to using one...

RuboCop Turns 10 | Meta Redux

RuboCop Turns 10 | Meta Redux The first step (commit) for RuboCop was quite modest. Back then I knew next to nothing about parsers, lexers, abstract syntax trees and all that jazz. I recall I planned to implement RuboCop in terms of regular expressions… I remember I had the id...

Mike Perham Creator of Sidekiq

Mike Perham Creator of Sidekiq Mike Perham, the creator of Sidekiq 🦵🏼 (a background job managers for Ruby) shares how he commercialised the open-source as a solopreneur doing what he loves 💙 without the costs .

Rust YJIT by XrXr · Pull Request 5826

Rust YJIT by XrXr · Pull Request 5826 In December 2021, we opened an issue to solicit feedback regarding the porting of the YJIT codebase from C99 to Rust. There were some reservations, but this project was given the go ahead by Ruby core developers and Matz. Since then, we have succe...

The Vanishing Thread and Postgresql TCP Connection Parameters

The Vanishing Thread and Postgresql TCP Connection Parameters Like any good story, this one starts in the logs. Our platform engineering team noticed that we occasionally see very long-running requests that ran well past our SLA. They seemed to ignore any application timeouts so they timeout around 15 minute...

An Update on WebAssembly/WASI Support in Ruby

An Update on WebAssembly/WASI Support in Ruby CRuby is a highly portable C application, and it runs on many platforms (You can see which platforms are tested on CI here). However the “portability” is only at source level, and the built executable is not portable across architectures and syste...

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