JavaScript Object.keys()

1 개요

JavaScript Object.keys()

var arr = ['a', 'b', 'c'];
console.log(Object.keys(arr));
// ['0', '1', '2']

var an_obj = { 100: 'a', 2: 'b', 7: 'c' };
console.log(Object.keys(an_obj));
// ['2', '7', '100']

2 같이 보기

• (experimental) JavaScript Object.values()
• 함수 keys()

3 참고

• https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/keys