Type that has null able and optional but function type is require

# Type that has null able and optional, but function type is require.md

Type that has null able and optional, but function type is require.

type NullAbleType<T> = {[K in keyof T]: T[K] | null}
type User = {name: string, age: number, money: null, fn: (...arg: any[])=> void}
type FunctionType<T> = {[K in keyof T]: T[K] extends Function? T[K] : never}[keyof T]
type FunctionName = "fun"
type NullAbleUserAndRequireFunction<T> = NullAbleType<Partial<User>> & {[K in T extends FunctionName ? T: never]: FunctionType<User>}

const obj:NullAbleUserAndRequireFunction<FunctionName> = {name: null, age: 99, money: null, fun: ()=>{}}

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If FunctionType allows null, more simple

type NullAbleType<T> = {[K in keyof T]: T[K] | null}
type User = {name: string, age: number, money: null, fn: (...arg: any[])=> void}

const obj:NullAbleType<Partial<User>> = {name: null, age: 99, money: null, fn: ()=>{}}

playground