我正在尝试通过发出命令node server.js
来运行react app,但是它给出了一个错误:
未捕获的SyntaxError:意外的令牌导入bundle.js:47
的package.json
{
"name": "helloreact",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "yash",
"license": "ISC",
"dependencies": {
"express": "^4.14.0",
"react": "^15.4.2",
"react-dom": "^15.4.2"
},
"devDependencies": {
"babel-core": "^6.21.0",
"babel-loader": "^6.2.10",
"babel-preset-es2015": "^6.18.0",
"babel-preset-react": "^6.16.0",
"webpack": "^1.14.0"
}
}
webpack命令我给的是bundle:
webpack ./public/main.js ./public/bundle.js
main.js
import Hello from './hello.jsx';
import World from './world.jsx';
webpack.config.js
var webpack = require('webpack');
var path = require('path');
var HtmlWebpackPlugin = require('html-webpack-plugin');
var CaseSensitivePathsPlugin = require('../index.js'); // use inside the npm package
// We use the NODE_ENV in our automation commands to differentiate environments
var production =
process.env.NODE_ENV === 'production' ||
process.env.NODE_ENV === 'preprod';
// Setup our plugins.
var plugins = [
// attaches the webpack-generated JS to our main HTML file
new HtmlWebpackPlugin({template: './src/index.html'}),
// create global access to the NODE_ENV within our Webpacked code:
new webpack.DefinePlugin({
__ENV__: JSON.stringify(process.env.NODE_ENV)
}),
// http://gaearon.github.io/react-hot-loader/getstarted/
new webpack.HotModuleReplacementPlugin(),
// Mac doesn't care about case, but linux servers do, so enforce...
new CaseSensitivePathsPlugin()
];
// In production we do a bit more...
if (production) {
plugins.concat(
[
new webpack.optimize.DedupePlugin(),
new webpack.optimize.OccurenceOrderPlugin(),
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false
}
})
]);
}
const devEntry = [
'webpack-dev-server/client?http://0.0.0.0:3000', // tells client where to get hot reloads
'webpack/hot/only-dev-server', // "only" prevents reload on syntax errors
'babel-polyfill', // for full ES6 compatibility on older devices
'./src/init.js'
];
const prodEntry = [
'babel-polyfill', // for full ES6 compatibility on older devices
'./src/init.js'
];
const theEntry = (production) ? prodEntry : devEntry;
module.exports = {
// Bundle to our dist folder as a main.js file.
output: {
path: path.join(__dirname, 'dist'),
filename: 'main.js',
publicPath: '/'
},
devtool: 'sourcemap',
// Our master entry point.
entry: theEntry,
// Extra helpers to make require or include easier.
resolve: {
extensions: ['', '.js', '.jsx', '.json']
},
module: {
loaders: [{
test: /\.(js|jsx)$/,
// in dev only, hotload
loader: production ? 'babel' : 'react-hot!babel',
// other babel options are specified in .babelrc
exclude: /node_modules/
}, {
test: /\.json$/,
loader: 'json'
}]
},
plugins: plugins
};