Practical guides for developers. Ideas for building and running software.
structuredClone is a built-in JavaScript function that makes a deep copy of a value. A deep copy duplicates the value and everything it contains, while a shallow copy would only…
You run microservices that call each other over a network, and those calls fail. A connection drops, a downstream service…
Webhook providers such as Stripe and GitHub deliver events on an at-least-once basis: they retry a delivery until your endpoint…
When you have an object literal and a type you want it to match, TypeScript gives you three ways to…
Most startups begin with one application that contains every feature and deploys as a single unit. That application is a…
If you are building an AI agent that reads from or writes to your systems, the most important decision is…
When you manage infrastructure with Terraform across development, staging, and production, you need to decide where each piece of configuration…
Rust's ownership rules decide who can use a value and when. Every value has exactly one owner, a variable or…
An AI product that calls a large language model spends real money on every request. Each call consumes tokens, the…
Go 1.21 added two generic helper packages to the standard library: slices and maps. Before that, these utilities lived in…
When you write Go code that checks whether a value exists, fetches a value by key, or removes duplicates from…
Terraform modules are reusable packages of infrastructure configuration. A module is a folder of .tf files that declares resources such…
An AI agent is software that decides what to do next and then does it, usually by calling external APIs…
Copying a JavaScript object is easy to get wrong. A shallow copy such as { ...original } copies the top…
If you have written more than a few lines of Rust, you have seen a borrow checker error. The borrow…
