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O'Reilly Platform
book
React学习手册
by
Alex Banks
,
Eve Porcello
December 2017
Intermediate to advanced
329 pages
6h 9m
Chinese
China Electric Power Press Ltd.
Content preview from
React学习手册
62
第
4
章
React
进阶
为了了解
React
在浏览器中的运行机制,本章将会单独介绍
React
。下一章将会介绍
JSX
,即
JavaScript
下的
XML
格式。也许读者已经和
React
打过交道,但是从未看过将
JSX
格式的代码转译成
React
源码。用户完全可以在不了解
React
源码的情况下放心使
用
React
。不过,如果你希望花时间了解应用场景背后的具体细节,那么将会有助于
提高开发效率,特别是在查找代码
Bug
时。这也是本章的目标:了解
React
内部的运行
机制。
建立页面
为了在浏览器中使用
React
,我们需要引用两种类库:
React
和
ReactDOM
。
React
库是
用来创建视图的。
ReactDOM
库是用来在浏览器中渲染
UI
的。
ReactDOM
在
0.14
版时,
React
和
ReactDOM
被一分为二独立打包了。发行说明指出:
“
React
的美丽和精髓和浏览器、
DOM
的关联甚少,这个
(
一分为二
)
方式,为编
写能够在
React
和
React Native
应用之间的
Web
版本实现组件共享铺平了道路”。
注
1
React
将不仅限于在浏览器中进行元素渲染,未来的版本将会支持多平台的元素
渲染。
注
1
:
Ben Alpert,
“
React v0.14
”(
http://bit.ly/2nvPHEQ
)
,
React blog, October 7, 2015
。
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Publisher Resources
ISBN: 9787519814236