2023-04-25 #typescript #svelte / dev.to

↗ How the Svelte team uses TypeScript with JSDoc

Rich Harris & the rest of the Svelte team have previously mentioned that they use TypeScript with JSDoc instead of .ts files. That gives TypeScript's safety benefits during development and on CI, without an additional build step.

There are a few nuances to this, Pascal Schilp did a great job reviewing the background and benefits behind this decision.