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TypeScript works with JSDoc annotations: https://github.com/Microsoft/TypeScript/wiki/JsDoc-support-in-JavaScript https://github.com/Microsoft/TypeScript/wiki/J

• sephoric 8y ago
  Can confirm, have sometimes added /* * @type Foo */ above a type and VS Code assumed that type was Foo everywhere else in my project, as if I typed `foo: Foo` directly. Didn't even have TypeScript in the project itself, purely an IDE feature. Extremely well thought out and useful ecosystem.
• deleted 8y ago
  [deleted]