December 2017
Intermediate to advanced
329 pages
6h 9m
Chinese
Content preview from React学习手册
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"timestamp": "Sat Mar 12 2016 16:12:09 GMT-0800 (PST)",
"title": "Test Teal",
}
at Object.<anonymous> ( tests /store/reducers/color.test.js:44:9)
at process._tickCallback (internal/process/next_tick.js:103:7)
color Reducer
X
ADD_COLOR success (8ms)
X
RATE_COLOR success (1ms)
Test Suites: 1 failed, 1 total
Tests: 2 failed, 2 total
Snapshots: 0 total
Time: 0.861s, estimated 1s
Ran all test suites.
投入时间编写测试和运行它们，以便查看它们显示的错误提示信息，这说明我们的测
试是按照预期工作的。这些错误反馈就是我们的计划工作列表。用户的工作就是让程
序代码通过这两个测试程序。
现在我们需要打开
/src/Store/reducers.js
文件，然后编写能够通过上述测试程序所需的
基本代码：
import C from '../constants'
export const color = (state={}, action=) => {
switch ...
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