What is the process for verifying if a property is correct based on the interface type?

This is a code snippet from a class method:

class BinderScoreService<T> extends Binder {
  public bindTeacher<K extends keyof T>(key: K) {
  }
}

When using this method and passing a string value as a parameter, TypeScript verifies if it matches a key of type T:

bindTeacher('id');

How can I pass another parameter and perform the same check?

For example:

bindTeacher<ISecond>('id', 'second');

I attempted the following:

public bindTeacher<K extends keyof T, KB extends keyof B>(key: K, key2: B) {
}

And then calling it like this:

bindTeacher<ISecond>('id', 'second');

Answer №1

Is this what you're referring to?

    function selectTeacher<K extends keyof T>(...keys: K[]){
    }

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