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vector-im-hydrogen-web/doc/TS-MIGRATION.md
Bruno Windels 2e57e99e34
clarify when to use type and interface
2021-11-30 14:15:25 +00:00

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Typescript migration

Introduce abstract & override

  • find all methods and getters that throw or are empty in base classes and turn into abstract method or if all methods are abstract, into an interface.
  • change child impls to not call super.method and to add override
  • don't allow implicit override in ts config

Use type rather than interface for named parameters and POJO return values.

type and interface can be used somewhat interchangebly used, but let's use type to describe data and interface to describe (polymorphic) behaviour.

Good examples of data are option objects to have named parameters, and POJO (plain old javascript objects) without any methods, just fields.

Also see this playground