February 2022
Beginner to intermediate
784 pages
24h 53m
Korean
Content preview from 자바스크립트 완벽 가이드
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JavaScript
40
3장 타입, 값, 변수
s.slice(1,4) //
=
> "ell":
같은
결과입니다
.
s.slice(
-
3) //
=
> "rld":
마지막
세
문자
s.split(", ") //
=
> ["Hello", "world"]
구분자를
기준으로
나눕니다
.
//
문자열
검색
s.indexOf("l") //
=
> 2: l
이
처음
나타나는
위치
s.indexOf("l", 3) //
=
> 3: 3
번
문자부터
시작해
l
이
처음
나타나는
위치
s.indexOf("zz") //
=
>
-
1: s
에는
zz
라는
문자열이
들어
있지
않습니다
.
s.lastIndexOf("l") //
=
> 10: l
이
마지막으로
나타나는
위치
//
불을
반환하는
검색
함수는
ES6
에서
추가됐습니다
.
s.startsWith("Hell") //
=
> true: s
는
Hell
로
시작합니다
.
s.endsWith("!") //
=
> false: s
는
!
로
끝나지
않습니다
.
s.includes("or") //
=
> true: s
에는
or
이
들어
있습니다
.
//
문자열을
변경합니다
.
s.replace("llo", "ya") //
=
> "Heya, world"
s.toLowerCase() //
=
> "hello, world"
s.toUpperCase() //
=
> "HELLO, WORLD"
s.normalize() ...
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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.