Typescript utilities

utilities.types.ts

import "@total-typescript/ts-reset";

export {}

// Makes all properties optional
export type DeepPartial<T> = T extends object
  ? {
      [P in keyof T]?: DeepPartial<T[P]>
    }
  : T

// Exclusive or, use instead of ({ a: 'a' } | { b: 'b' }) & { c: 'c' }
export type XOR<T, U> =
  | (T & { [K in Exclude<keyof U, keyof T>]?: never })
  | (U & { [K in Exclude<keyof T, keyof U>]?: never })

// Make chosen fields required
export type WithRequired<TType, TRequiredKeys extends keyof TType> = TType & {
  [P in TRequiredKeys]-?: TType[P]
}