React似乎没有认识到' ='我的.js中的符号

时间:2017-11-21 18:13:16

标签: javascript reactjs

我在尝试让应用程序运行时遇到问题。 使用babel进行编译时,似乎' ='我的.js文件中的符号未被识别...并且它返回我"未捕获错误:模块构建失败:SyntaxError"。我不知道如何解决这个问题,它真的开始让我紧张了:)。 这是我的webpack.config.js

const path = require('path');

module.exports = {
entry: ['babel-polyfill', './lib/main.js'],
output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname)
},
devtool: 'source-map',
module: {
    rules: [
        {
            test: /\.js$/,
            exclude: /(node_modules|bower_components)/,
            use: {
                loader: 'babel-loader',
            }
        }
    ]
}
};    

这是我的main.js

的开头
import React from 'react';
import ReactDOM from 'react-dom';
import _ from 'lodash';


const createArray = (size) => Array.from({ length: size }, (_, i) => i);

class Cell extends React.Component {
backgroundColor = () => {

我的index.html

<!doctype html>
<head>
  <meta charset="utf-8">
  <title>Memory Game</title>
  <!-- certainly some style rules here -->
 <link rel="stylesheet" href="../style.css"/>
</head>
<body>
  <div id="react"> Loading...</div>
  <script src="bundle.js"></script>
</body>
</html>

先谢谢,请记住,我是初学者:) 祝你有愉快的夜晚!

1 个答案:

答案 0 :(得分:0)

resources/views/errors/500.blade.php

使用适当的模块:

module: {
    rules: [
        {
            test: /\.jsx?$/,
            exclude: /(node_modules|bower_components)/,
            loader: 'babel-loader',
            query: {
                presets: ['react', 'es2015'],
                plugins: ['react-html-attrs', 'transform-class-properties', 'transform-decorators-legacy']
            }
        }
    ]
}