# 22437 FlattenObject<T>

[yue1123]

Implement a type FlattenObject<T> that deep flatten object to path and value type.

[jiangshanmeta]

@yue1123 how to handle this cast:

const deep = {
  "a/b/c":true,
  a: {
    b: {
      c: 123,
      d: '123'
    }
  }
}

what's the final type for key "a/b/c"

[yue1123]

I haven't really considered this situation, maybe it can be handled with a union type, but in that case, this question should not be of medium difficulty😂

type finalType =
  | {
      'a/b/c': boolean
    }
  | {
      'a/b/c': number
      'a/b/d': string
    }

[antfu]

Maybe using . as the delimiter would be more intuitive?

[yue1123]

I think so, I will change the test case tomorrow

Maybe using . as the delimiter would be more intuitive?