Using a module as a type #typescript #modules #Interface

module-as-type.md

Say you have the following module:

const SomeModule = () => {
  const add: number = (a: number, b: number) => a + b;
  const subtract: number = (a: number, b: number) => a - b;
  
  return {
    add,
    subtract
  }
}

You can then use the follow module as a type by doing the following:

interface Types {
  someModule : ReturnType<typeof SomeModule>
}