MaybeEmpty and Nullable should have options args

What is the problem this feature would solve?

t.Nullable t.Empty not support default value.

Value.Parse(t.Object({
  foo: t.Nullable(t.String({ default: null }))
})) // throw  Expected required property.

Value.Parse(t.Object({
  foo: t.Union([t.String(), t.Null()], { default: null })
})) // this works

What is the feature you are proposing to solve the problem?

Allow pass the SchemaOptions to the t.Nullable t.Empty, just like Union<Types extends TSchema[]>(types: [...Types], options?: SchemaOptions): Union;

Nullable: <T extends TSchema>(schema: T, options?: SchemaOptions) => t.Union([schema, t.Null()], options),

What alternatives have you considered?

No response

At

elysia/src/type-system.ts

Line 747 in 353efd2

t.Nullable = (schema) => ElysiaType.Nullable(schema)

, it seems that t.Nullable does not pass the options into ElysiaType.Nullable. Additionally, why is an arrow function used here instead of directly assigning a function reference? @SaltyAom

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