How to get a list of fields from the interface?

Question

typescript

There is an interface

export interface Credentials {
    login: string | undefined;
    password: string | undefined;
}

I want to save RegExp in a separate object to check properties. Can I get a list of properties from Credentials so that I can create only the fields available in Credentials in the object? Something like this, only that the first argument for Record itself is pulled from Credentials

const credTester: Record<'login' | 'password', RegExp> = {
        login: /^[0-9a-zA-Z]*$/,
        password: /^[[email protected]#.]*$/
};

Answer 1

const credTester: Record<keyof Credentials, RegExp> = {
        login: /^[0-9a-zA-Z]*$/,
        password: /^[[email protected]#.]*$/
};