在npm中使用ReactJS并给出以下错误（意外的令牌）

Question

任何信息都会非常有用，最初我运行npm install babel-loader命令。

我

ERROR in ./app-client.js Module build failed: SyntaxError: /Users/dawatramani/ReactNodejs/app-client.js:

意外标记（4:13）

2 | var APP= require('./components/APP'); 
    3 | 
> 4 | React.render(<APP />,document.getElementById('react-container')); 
    |   ^
    5 | 

at Parser.pp.raise (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/location.js:22:13) at Parser.pp.unexpected (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/util.js:89:8) at Parser.pp.parseExprAtom (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:522:12) at Parser.pp.parseExprSubscripts (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:277:19) at Parser.pp.parseMaybeUnary (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:257:19) at Parser.pp.parseExprOps (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:188:19) at Parser.pp.parseMaybeConditional (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:165:19) at Parser.pp.parseMaybeAssign (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:128:19) at Parser.pp.parseExprListItem (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:1046:16) at Parser.pp.parseCallExpressionArguments (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:353:20) at Parser.pp.parseSubscripts (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:316:31) at Parser.pp.parseExprSubscripts (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:287:15) at Parser.pp.parseMaybeUnary (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:257:19) at Parser.pp.parseExprOps (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:188:19) at Parser.pp.parseMaybeConditional (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:165:19) at Parser.pp.parseMaybeAssign (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:128:19) at Parser.pp.parseExpression (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/expression.js:92:19) at Parser.pp.parseStatement (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/statement.js:163:19) at Parser.pp.parseBlockBody (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/statement.js:529:21) at Parser.pp.parseTopLevel (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/statement.js:36:8) at Parser.parse (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/parser/index.js:129:19) at parse (/Users/dawatramani/ReactNodejs/node_modules/babel-core/node_modules/babylon/lib/index.js:47:47) at File.parse (/Users/dawatramani/ReactNodejs/node_modules/babel-core/lib/transformation/file/index.js:517:34) at File.parseCode (/Users/dawatramani/ReactNodejs/node_modules/babel-core/lib/transformation/file/index.js:603:20) at /Users/dawatramani/ReactNodejs/node_modules/babel-core/lib/transformation/pipeline.js:49:12 at File.wrap (/Users/dawatramani/ReactNodejs/node_modules/babel-core/lib/transformation/file/index.js:563:16) at Pipeline.transform (/Users/dawatramani/ReactNodejs/node_modules/babel-core/lib/transformation/pipeline.js:47:17) at transpile (/Users/dawatramani/ReactNodejs/node_modules/babel-loader/index.js:14:22) at Object.module.exports (/Users/dawatramani/ReactNodejs/node_modules/babel-loader/index.js:88:12)

Answer 1

那么当前版本的reactJS你不应该使用React.render()而是使用ReactDOM.render()和import ReactDOM from "react-dom"。我认为这会解决你的问题。

ReactDOM.render(<ComponentName />,document.getElementById('react-container')); 

这是0.14引入的最新变化。 React现在被分割成一个核心库和DOM适配器。渲染现在通过ReactDOM.render完成。

DOCS

Answer 2

好像你忘了粘贴在组件渲染方法:)

React.render(,document.getElementById('react-container'));