1 In my job as a front-end developer and consultant I speak to other developers a lot about how to write code.
2 You can, however, use apply (which does not ignore holes and treats them as undefined) to get around this issue.
3 Why you would like to do such a nonsense?
트위터 반응

@developerfarm: "Functional Style Mind Shift in JavaScript" https://t.co/M4OjxCD9ne 자바스크립트 함수형 프로그래밍