Hello all, is there a way to do Partial<TypeName> like in TypeScript? I saw this question alre...

# getting-started

[nk]

Hello all, is there a way to do Partial<TypeName> like in TypeScript? I saw this question already asked on [stack overflow](https://stackoverflow.com/questions/50651879/kotlin-feature-like-typescript-partial) but its unanswered. My use case is having a data class User(name: String, pass: String, email: String, etc...) and then an update method which would take a Partial User so that you'd only have to supply a subset of the fields fun update(user: Partial<User>): User {...}. Should I just create a new type for this? Such as data class PartialUser(name?: String = null, pass?: String = null, email: String = null, etc...).

[serebit]

You’ll have to create a second type, yes

[nk]

Thanks, good to know what's possible/isn't possible. I ended up creating separate types for create/update in the end. I think its better than partial anyway because their accepted fields vary slightly.

[Ian White]

I have a codegen that handles this. You add a @PartialDataObjects(["Partial","Create","Update"]) annotation to a data object X and it will create PartialX, CreateX, UpdateX data objects for you. it’s not totally ready for public consumption but i’ve found it super handy for my own projects if you’re interested: https://github.com/stardogventures/stardao/tree/master/stardao-kotlin-partial