how to extract one type from object literal type in typescript?

Question

for example i have this type:type mixed = {k1: string, k2: number}

now i want another type(could be generated from some generic) with only string property type from mixed, like this:

type stringOnly = {k1: string} where k2 from mixed is omitted.

How to do this in typescript? Thanks!

Answer 1

If you want to remove a specific property for the new type, you can use Omit:

type stringOnly = Omit<mixed, "k2">;