How do you hint different options for a function's object parameter?

Issue

I'm implementing a library in TypeScript and some functions are as follows:

constructor(type: TypeEnum, params: {[id:string]: any})

The thing is, whenever I use the library using js, I would like my IDE to display every single valid id of params. I have seen some libraries already do this, how do I achieve it?

Solution

You can just set them explicitly as properties:

constructor(type: TypeEnum, params: { option1?: any, option2?: any })

Answered By - skara9