Native Iterator Helpers Just Shipped. Here's What You Stop Doing

Book: TypeScript Essentials — From Working Developer to Confident TS, Across Node, Bun, Deno, and the Browser Also by me: The TypeScript Library — the 5-book collection My project: Hermes IDE | GitHub — an IDE for developers who ship with Claude Code and other AI coding tools Me: xgabriel.com | GitHub You have a list of 50,000 users. You want the names of the first 10 active ones. You write the line you have written a hundred times: const names = users . filter ( u => u . active ) . map ( u => u