July 2016
Beginner to intermediate
776 pages
17h 26m
Korean
Content preview from 프로그래밍 스칼라: 실용적인 스칼라 활용법을 익히는 가장 확실한 실전 바이블 (2.11.x 버전 기반)
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303
6
장
스칼라 함수형 프로그래밍
scala
>
val states3
=
states2
+
("
New York
",
"
Illinois
")
states3
:
scala
.
collection
.
immutable
.
Set
[
String
]
=
Set
(
Alaska
,
Virginia
,
Alabama
,
New York
,
Illinois
,
Wyoming
)
Map
과 마찬가지로
scala
.
collection
.
Set
(
http
://
bit
.
ly
/
1tprGN8
) 트레이트는 오직 변경
불가능한 연산만 정의한다. 변경 불가능한 집합과 변경 가능한 집합에 대한 파생 트레이트인
scala
.
collection
.
immutable
.
Set
(
http
://
bit
.
ly
/
1u1fTHy
)과
scala
.
collection
.
mutable
.
Set
(
http
://
bit
.
ly
/
1wl5arf
)이 존재한다. 여러분은 변경 가능한 버전을 명시적으로 임포트해
야 하지만, 변경 불가능한 버전이 이미
Predef
에 의해 노출되어 있다. 두 구현 모두 원소를 추
가하고 삭제하는
+
와
-
연산, 반복자인
Iterator
(다른 집합, 리스트 등이 이런 반복자가 될 수
있다 )에 정의된 원소들을 추가하고 삭제하는
++
와
--
연산을 제공한다.
6.8
순회하기, 연관시키기, 걸러내기, 접기, 축약하기
일반적인 함수 컬렉션 (시퀀스, 리스트, ...
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and much more.
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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.