Object.keys(), Object.values(), Object.entries() 반환 타입

[ghdtjgus76]

다음은 각 메서드의 호출 시그니처임

• Object.keys()

/**
  * Returns the names of the enumerable string properties and methods of an object.
  * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
*/
  keys(o: object): string[];

Object.keys() 메서드의 반환 타입은 문자열 배열임

• Object.values()

/**
  * Returns an array of values of the enumerable properties of an object
  * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
*/
  values<T>(o: { [s: string]: T; } | ArrayLike<T>): T[];

Object.values() 메서드의 반환 타입은 내부 속성 타입과 같은 타입임

• Object.entries()

/**
  * Returns an array of key/values of the enumerable properties of an object
  * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
*/
  entries<T>(o: { [s: string]: T; } | ArrayLike<T>): [string, T][];

Object.entries() 메서드의 반환 타입은 내부 속성 타입과 같은 타입임