React课程学习

上一篇是关于react 资料的搜集,内容太多,后面参照hackathon-blog 中给出的关于react的资料: React课程学习, 整个资料循序渐进,挺易懂的!关于学习过程中的问题单开一章

2016-06-29

1. Error:

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Hash: 396f0bfb9d565b6f60f0
Version: webpack 1.13.1
Time: 52ms
[0] ./src/index.js 0 bytes [built] [failed]
ERROR in ./src/index.js
Module parse failed: F:\Users\react\webpack-demo\src\index.js Unexpected token (9:6)
You may need an appropriate loader to handle this file type.
SyntaxError: Unexpected token (9:6)
at Parser.pp.raise (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:923:13)
at Parser.pp.unexpected (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:1490:8)
at Parser.pp.parseExprAtom (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:333:12)
at Parser.pp.parseExprSubscripts (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:228:19)
at Parser.pp.parseMaybeUnary (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:207:17)
at Parser.pp.parseExprOps (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:154:19)
at Parser.pp.parseMaybeConditional (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:136:19)
at Parser.pp.parseMaybeAssign (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:112:19)
at Parser.pp.parseParenAndDistinguishExpression (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:376:28)
at Parser.pp.parseExprAtom (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:307:19)
at Parser.pp.parseExprSubscripts (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:228:19)
at Parser.pp.parseMaybeUnary (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:207:17)
at Parser.pp.parseExprOps (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:154:19)
at Parser.pp.parseMaybeConditional (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:136:19)
at Parser.pp.parseMaybeAssign (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:112:19)
at Parser.pp.parseExpression (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:88:19)
at Parser.pp.parseReturnStatement (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:1872:26)
at Parser.pp.parseStatement (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:1737:19)
at Parser.pp.parseBlock (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:2009:21)
at Parser.pp.parseFunctionBody (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:610:22)
at Parser.pp.parseMethod (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:579:8)
at Parser.pp.parseClassMethod (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:2155:23)
at Parser.pp.parseClass (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:2140:10)
at Parser.pp.parseStatement (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:1733:19)
at Parser.pp.parseTopLevel (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:1666:21)
at Parser.parse (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:1632:17)
at Object.parse (F:\Users\react\webpack-demo\node_modules\acorn\dist\acorn.js:885:44)
at Parser.parse (F:\Users\react\webpack-demo\node_modules\webpack\lib\Parser.js:902:15)
at DependenciesBlock.<anonymous> (F:\Users\react\webpack-demo\node_modules\webpack\lib\NormalModule.js:104:16)
at DependenciesBlock.onModuleBuild (F:\Users\react\webpack-demo\node_modules\webpack-core\lib\NormalModuleMixin.js:310:10)

原因是, loaders 中 test 匹配正则错误, 没有引号,/\.js$/

2016-06-30

1. webpack 加速!

看到了 webpack resolve 模块了,添加了alias, extensions 感觉编译速度并不明显, 从7s多到5s多的样子,只是基本的模块,并没有添加逻辑代码。可是在loaders 中.js 的解析中添加了 exclude: path.resolve(__dirname, 'node_modules') 之后编译速度进入1s 内982ms

2. webpack 添加resolve 和 解析样式文件的 loaders: [style-loader, css-loader, less-loader] ,报错信息:Uncaught ReferenceError: require is not defined

搜索相关的保存信息Uncaught ReferenceError: require is not defined 得到的相关 参考文章: webpack打包react-dom后,浏览器报require is not defined错误?

问题解决,是我将react-dom加入到webpack的noparse 中了,删掉即可!

同样删掉后,并不能解决问题,只好一步步注释回退到原来的状态,检测出错的模块,最后还是检测到是 webpack noParse的问题,不过webpack-dev-server 命令前要先webpack 下打包文件到build目录下,前面一直掉到这个坑里了!

提示

Webpack基础: 7.解析样式文件,还没有实现热更新功能,所以修改less文件需要重新webpack才能看到结果

3. react-hot & webpack-dev-server –inline –hot 配置热更新是报错!

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ERROR in ./src/index.js
Module not found: Error: Cannot resolve 'file' or 'directory' F:\Users\react\webpack-demo\node_modules\react\dist\react.js/lib/ReactMount in F:\Users\react\webpack-demo\src
@ ./src/index.js 1:301-332
ERROR in ./src/container/App.js
Module not found: Error: Cannot resolve 'file' or 'directory' F:\Users\react\webpack-demo\node_modules\react\dist\react.js/lib/ReactMount in F:\Users\react\webpack-demo\src\container
@ ./src/container/App.js 1:301-332
ERROR in ./src/components/Button/Button.js
Module not found: Error: Cannot resolve 'file' or 'directory' F:\Users\react\webpack-demo\node_modules\react\dist\react.js/lib/ReactMount in F:\Users\react\webpack-demo\src\components\Button
@ ./src/components/Button/Button.js 1:301-332

注释掉 webpack 中的resolve 的alias 模块 这样就可以解析react & react-dom 模块 通过react-hot。webpack 编译通过,可以运行npm run dev,浏览器打开后报错:

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[HMR] Waiting for update signal from WDS...
abstract-xhr.js:132 GET http://localhost:3000/sockjs-node/info?t=1467279375252 net::ERR_CONNECTION_REFUSED
client:70 [WDS] Disconnected!

修改 webpack-dev-server 的port 为3000后解决,端口号要一致。 不过并没有实现热更新功能(编辑器修改,浏览器预览效果)

使用Webpack搭建开发环境工作流 关于自动刷新, 和 HMR 的配置 关于 WEBPACK DEV SERVER 关于webpack-dev-server 的说明挺详细的,提到了关于热更新不起作用的 原因 The following modules couldn’t be hot updated: (They would need a full reload!)

  1. webpack dev server 中提到了前后端配合的相关配置
    1. troubleshooting.md 各种配置报错的解决办法!

解决办法

webpack 中devSever 配置中把,publicPath 去掉就OK,就可以了,

loader 中关于js 的loader配置改成了loaders 后面是数组,如果loader 通过! 链接的话也可以

2016-07-04

1. React Router 使用教程

入门挺不错的!

2. React Mixin 的前世今生

有点高深的内容,可以完全没读懂啊!

3. github-notetaker应用开发

7.接入真实的数据

用到了mixin

2016-07-05

github-note-taker 中使用了firebase ,直接写代码并没有运行,查看了 firebase官网,已经 ReactFire Guild

最终没有使用 firebase 通过 state 中的notes mock了相应的数据

1. github-note-taker 调试完成,属性了组织开发react的方式和 react-router的基本用法

2. React-router路由实践

明天coding 下

3. React-AJAX的最佳实践

作者并没写完,只是给提纲!

2016-07-06

1. coding React-router路由实践

1.

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invariant.js:39 Uncaught Invariant Violation: findComponentRoot(..., .0): Unable to find element. This probably means the DOM was unexpectedly mutated (e.g., by the browser), usually due to forgetting a <tbody> when using tables, nesting tags like <form>, <p>, or <a>, or using non-SVG elements in an <svg> parent. Try inspecting the child nodes of the element with React ID ``.

2016-07-11

看了redux 入门,进入公司项目

2016-07-27

继续吧!期望这个星期,这个月底能完成 hackathon-blog 项目,现在先把redux熟悉

2016-08-02

redux 入门的todo demo 调试完成,next: Middleware

React+Redux系列教程

2016-08-04

  1. React实践 - Component Generator
  2. redux middleware 详解