hinogi - tsconst a = z.object({ foo: z.strin...

const a = z.object({
  foo: z.string()
})

const b = z.object({
  bar: z.lazy(() => a().nullish)
})

b.parse({bar: {}})

const a = z.object({
  foo: z.string()
})

const b = z.object({
  bar: z.lazy(() => a().nullish)
})

b.parse({bar: {}})

this will error because

foo

foo

is undefined. What do I need to change here to make

optional so that it will not break if

bar

bar

is just empty since foo should be optional?

Solution

ok so foo has to be foo: null | undefined and {} is not a valid solutions. also, if null, the key will persist, if undefined the key is gone

thanks playground