My interface looks like this
interface Person {
name?:string;
age? :number;
gender?:string
}
I need to reuse the same interface type, but with a modification indicating that all members will never be undefined. The updated version would look like this:
name:string;
age :number;
gender:string
Is there a way to make changes to an interface without having to rewrite the entire thing? Thank you in advance
To ensure all properties are required in a type, you can use the Required<Type> utility type
This creates a type with all properties of
Typeset to required, which is the opposite ofPartial.
type RequiredPerson = Required<Person>;
Note: This feature requires TypeScript version 2.8 or higher
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