[Javascript] 객체(Object) 첫번째 키와 값 가져오기

var obj = { "TOP" : "/", "CM_CODE" : "/code/page" };

var firstMenuId = Object.keys(authorMenuObj)[0];

var firstMenuUrl = authorMenuObj[Object.keys(authorMenuObj)[0]];

출처: https://extbrain.tistory.com/32 [확장형 뇌 저장소]