Blog

Node's util.format() is typed as (format: string, ...args: any[]) which lets all kinds of mistakes through. Here we build a type-safe version from scratch using generics and template literal types.

How to build a virtual scrolling Vue component from scratch. Starts with fixed-size items, then tackles dynamic sizing, accessibility gotchas, and what you actually need to think about before shipping it.

ESLint's no-restricted-syntax rule lets you ban specific syntax patterns using ESQuery selectors. This post walks through how the selectors work, with real examples you can drop into your config.

How we test Vue components at JumpCloud: test what the component does, not how it works. Covers catching edge cases, preventing regressions, and writing tests you can trust through refactors.

How JumpCloud broke up a monolithic Vue app into micro-frontends. What went wrong, what worked, and what we'd do differently when splitting a large frontend into independently deployable pieces.

One of my favorite functions in lodash is get(). Here we develop a production-ready type definition for it from scratch using TypeScript generics.