Description
Hello!
I noticed some peculiarity when working with optional properties.
For example:
interface SomeInterface {
someOptionalProperty?: string;
}
const value: SomeInterface = { someOptionalProperty: undefined };This code is quite valid and can be compiled without any problems.
Example with assertType:
For example:
interface SomeInterface {
someOptionalProperty?: string;
}
const value: SomeInterface = assertType<SomeInterface>({ someOptionalProperty: undefined });In this case, I will get the error:
TypeGuardError: validation failed at $.someOptionalProperty: expected a string