February 2022
Beginner to intermediate
784 pages
24h 53m
Korean
Content preview from 자바스크립트 완벽 가이드
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the Denitive Guide
55
3.9 타입 변환
parseInt("
-
0XFF") //
=
>
-
255
parseFloat(".1") //
=
> 0.1
parseInt("0.1") //
=
> 0
parseInt(".1") //
=
> NaN:
정수는
.
로
시작할
수
없습니다
.
parseFloat("$72.47") //
=
> NaN:
숫자는
$
로
시작할
수
없습니다
.
parseInt()
는 선택 사항인 두 번째 인자로 기수를 받습니다. 기수는 2 이상 36 이하
범위여야 합니다. 예를 들어 다음을 보십시오.
parseInt("11", 2) //
=
> 3: (1*2 + 1)
parseInt("ff", 16) //
=
> 255: (15*16 + 15)
parseInt("zz", 36) //
=
> 1295: (35*36 + 35)
parseInt("077", 8) //
=
> 63: (7*8 + 7)
parseInt("077", 10) //
=
> 77: (7*10 + 7)
3.9.3
지금까지는 어떤 타입의 값을 다른 타입으로 직접 변환하는 방법을 설명했고, 기본
타입을 다른 기본 타입으로 묵시적으로 변환하는 방법을 설명했습니다. 이 절은 자
바스크립트가 객체를 기본 값으로 변환할 때 사용하는 복잡한 규칙을 설명합니다.
길고 모호하게 느껴질 수 있습니다. ...
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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.