Blog

Most navigation in a Next.js app happens through links: the user clicks, the URL changes, a new page renders. But plenty of navigation isn't triggere

A 404 page is one of the most visited pages on a typical site, and one of the least designed. People land on it from old links, typos, deleted produc

Every app eventually throws an error you didn't plan for. A database times out, an upstream API returns HTML instead of JSON, or someone ships a comp

Most test suites start clean and then slowly fill up with copy-paste. Every test opens a database connection, creates the same three objects, and clo

When a page depends on slow data, the worst thing it can do is nothing. The user clicks a link, the old page stays on screen, and for a second or two

Layouts in the App Router are built to persist. Navigate between two pages that share a layout, and the layout stays mounted: its state, its DOM, and