For years we’ve been writing this: import config from "./config.json"; It looked like native JavaScript module syntax. But it wasn’t. Your bundler stepped in at build time, read the JSON file, turned it into a JavaScript module, and made it feel native. The browser itself wasn’t treating JSON as a...

For a long time, JavaScript developers have relied on instanceof to figure out, “Is this an error?” err instanceof Error // true...usually In normal code, that works fine. You rarely think about it. But once values come from other realms, things get weird, and the failures are silent. Everything “works”...

Writing JavaScript that opens something (a file, a stream, a lock, a database connection) also means remembering to clean it up. And if we’re being honest, that cleanup doesn’t always happen. I know I’ve missed it more than once. JavaScript has always made this our problem. We reach for try...