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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391
18
장
브라우저의 자바스크립트
이 예제에서는 페이지를 처음 불러올 때 <
div
class
="
serverInfo
"> 안에 플레이스홀더 구실
을 하는 물음표가 들어 있습니다. 사용자의 인터넷 연결이 느리다면 서버에서 받아온 정보로 교체하기 전에
물음표가 잠시 보일 수 있습니다. 이런 문제를
FOUC
(
flash
of
unstyled
content
)라고 부르며, 이 외에도 몇
가지 종류가 있습니다. 가장 좋은 해결책은 서버에서 각 필드의 초깃값을 처음부터 만들어 보내는 겁니다. 콘
텐츠 업데이트가 끝나기 전에는 요소 전체를 숨기는 방법도 있습니다. 이렇게 해도 약간의 거슬림을 막을 수
는 없지만, 무의미한 물음표가 표시되는 것보다는 낫습니다.
이 장에서는
Ajax
요청에 관한 기본적인 개념만 설명했습니다. 더 자세히 배우고 싶다면
MDN
에서
XMLHttpRequest
를 설명한 문서 (
https
://
goo
.
gl
/
r0iyR
)
를 보십시오.
18.12
요약
웹 개발에는 자바스크립트 언어 자체는 물론 웹 개발에만 적용되는 개념과 복잡함이 있습니
다. 여기서는 아주 간단한 내용만 다루었습니다. 웹 개발자라면 세미 퓨어월
SemmyPurewal
이 쓴
『
Learning
Web
App
Development
』(
O
’
reilly
,
2014
)를 읽어보길 권합니다.
CSS
에 대해
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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.