February 2022
Beginner to intermediate
784 pages
24h 53m
Korean
Content preview from 자바스크립트 완벽 가이드
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
the Denitive Guide
35
3.3 텍스트
반면 비교 연산자는 피연산자를 섞어도 괜찮습니다(단, 3.9.1절에서
= =
와
= = =
의
차이를 확인하십시오).
1 < 2n //
=
> true
2 > 1n //
=
> true
0
==
0n //
=
> true
0
===
0n //
=
> false:
===
는
타입까지
같은지
체크합니다
.
4.8.3절에서 설명할 비트 연산자도 BigInt를 피연산자로 받을 수 있습니다. 하지만
Math
객체의 함수에는 BigInt 피연산자를 받을 수 있는 것이 없습니다.
3.2.6
자바스크립트의 Date 클래스는 날짜와 시간에 대응하는 숫자를 표현하고 조작합니
다. Date는 객체이지만,
타임스탬프
타임스탬프인 숫자 표현 역시 가지고 있으므로 1970년 1월
1일로부터 몇 밀리초가 지났는지 등을 계산할 수 있습니다.
let timestamp
=
Date.now(); //
현재
시간을
타임스탬프
(
숫자
)
형식으로
표시합니다
.
let now
=
new Date(); //
현재
시간을
Date
객체로
표시합니다
.
let ms
=
now.getTime(); //
밀리초
타임스탬프로
변환합니다
.
let iso
=
now.toISOString(); //
표준
형식의
문자열로
변환합니다
.
Date 클래스와 메서드는 11.4절에서 설명합니다. ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.