我正在尝试使用带有 webpack 和 babel-loader (es2015 + stage-0 预设)的 node.js 在服务器上使用 javascript ES7 语法。我已经让它可以与 babel-node 一起使用,但是当我运行 webpack 时,我在 async 关键字处收到以下错误(9:22 在 async 关键字之后):
ERROR in ./src/server.js Module parse failed: C:\dev\node-async-sample\src\server.js
Unexpected token (9:22) You may need an appropriate loader to handle this file type.
SyntaxError: Unexpected token (9:22)
我已将代码放在 github 上https://github.com/qubitron/node-async-sample https://github.com/qubitron/node-async-sample,关于如何让它发挥作用有什么想法吗?
以下是 src/server.js 中的相关片段:
import express from 'express';
import http from 'request-promise';
let server = express();
server.get('/', async function(request, response) {
let result = await http('http://www.google.com');
response.send(result);
});
.babelrc:
{
"presets": [
"es2015",
"node5",
"stage-0"
],
"plugins": [
"transform-runtime"
]
}
和 webpack.config.js:
module.exports = {
entry: [
'babel-polyfill',
'./src/server.js'
],
output: {
path: __dirname + '/dist',
filename: 'server_bundle.js'
},
resolve: {
extensions: ['', '.js', '.jsx']
},
module: {
loaders: [
{
test: /\.jsx?$/,
include: __dirname + '/src',
loader: 'babel-loader'
}
]
}
};
我在这里看到了类似的问题,但它有不同的错误消息,并在 babel:master 中修复:ES7 异步等待函数与 babel-loader 不工作 https://stackoverflow.com/questions/33579395/es7-async-await-functions-with-babel-loader-not-working