July 2017
Beginner to intermediate
464 pages
10h 38m
Korean
Content preview from 러닝 자바스크립트: ES6로 제대로 입문하는 모던 자바스크립트 웹 개발
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75
3
장
리터럴과 변수, 상수, 데이터 타입
리터럴과 변수, 상수, 데이터 타입
CHAPTER
3
3
장은
데이터
에 관한 장이며, 데이터를 자바스크립트가 이해할 수 있는 형식으로 바꾸는 법을
배웁니다.
컴퓨터가 모든 데이터를
0
과
1
로 바꾼다는 사실은 아마 알고 있을 겁니다. 하지만 우리가 직접
0
과
1
만으로 일을 할 수는 없고, 우리에게 익숙한 형태인 숫자와 텍스트, 날짜 등을 다뤄야 합
니다. 이런 숫자와 텍스트, 날짜 등을
데이터 타입
data
type
이라 부릅니다.
자바스크립트에서 사용할 수 있는 데이터 타입을 다루기 전에 먼저
변수
variable
와
상수
constant
,
리터럴
literal
에 대해 알아봅시다. 이들은 자바스크립트가 데이터를
보관하는
메커니즘입니다.
프로그램을 배울 때 용어의 중요성을 과소평가하는 사람이 많습니다. 리터럴과 값
value
이 어떻게 다
른지, 표현식
expression
과 문
statement
이 어떻게 다른지 이해하지 못하면 프로그램 언어를 배우는 데 장애가 될 수
있습니다. 이런 용어는 자바스크립트는 물론 컴퓨터 과학 전반에서 사용하는 용어입니다. 개념을 잘 이해하는
것도 물론 중요하지만, 용어에 관심을 가지면 배운 언어에 관한 지식을 다른 언어에도 적용할 수 있고 더 많
은 소스에서 배울 수 있습니다.
3.1
변수와 상수
변수
variable ...
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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.