object.ts

export function* objectKeys<T extends object>(
  object: T
): Generator<Extract<keyof T, string>, void, unknown> {
  for (const key in object) {
    if (object.hasOwnProperty(key)) {
      yield key;
    }
  }
}

export function* objectValues<T extends object>(
  object: T
): Generator<Extract<T[Extract<keyof T, string>], string>, void, unknown> {
  for (const key in object) {
    if (object.hasOwnProperty(key)) {
      yield (object as any)[key];
    }
  }
}

export function* objectEntries<T extends object>(
  object: T
): Generator<[Extract<keyof T, string>, T[Extract<keyof T, string>]], void, unknown> {
  for (const key in object) {
    if (object.hasOwnProperty(key)) {
      yield [key, (object as any)[key]];
    }
  }
}

export function fromEntries<T = any>(
  entries: Iterable<readonly [PropertyKey, T]>
): { [k: string]: T } {
  const object: Record<PropertyKey, T> = {};
  for (const [key, value] of entries) {
    object[key] = value;
  }
  return object;
}