使用符号链接时出现“ classProperties”错误

时间:2019-05-21 13:51:29

标签: javascript webpack babel-loader

我有2个webpack项目:

  • c1
  • project-1

“ c1”效果很好。

但是“ project-1”无效。
“ project-1”结构为:

|-节点模块
|-dist
|-src
| --- c1(符号链接 => c1 / src)
| ---主页
|-.babelrc
|-package.json
|-package-lock.json
|-webpack.config.js

.babelrc

{
    "plugins": ["@babel/plugin-proposal-class-properties"]
}

webpack.config.js

const path = require('path')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const HtmlWebpackPlugin = require('html-webpack-plugin')

const app = {
    "folder": "home",
    "entry": { "home" : "./src/home/Home.js" },
    "template": "./src/home/index.ejs",
    "fileNameCSS": "home.css"
}

module.exports = {
    mode: 'development',
    devtool: 'inline-source-map',
    entry: app.entry,
    output: {
        filename: '[name].js',
        path: path.resolve(__dirname, 'dist') + '/' + app.folder,
    },
    resolve: {
        alias: {
            c1: path.resolve(__dirname, 'src/c1'),
        }
    },
    module: {
        rules: [
            {
                test: /\.(sa|sc|c)ss$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    { loader: 'css-loader', options: { url: false, sourceMap: true } },
                    { loader: 'sass-loader', options: { url: false, sourceMap: true } }
                ],
            },
            { 
                test: /\.ejs$/, 
                loader: 'ejs-loader?variable=data' 
            },
            {
                test: /\.m?js$/,
                exclude: /(node_modules|bower_components)/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env']
                    }
                }
            },
        ],
    },
    plugins: [
        new MiniCssExtractPlugin({
            filename: app.fileNameCSS ,
        }),
        new HtmlWebpackPlugin({
            filename: 'index.html',
            template: app.template
        })
    ],
}

project-1 / src / home / Home.js

import Button from 'c1/button/Button'

export default class Home {...}

new Home()

在构建时,出现以下错误:

ERROR in g:/web/test/c1/src/button/Button.js
Module build failed (from ./node_modules/babel-loader/lib/index.js):
SyntaxError: g:\web\test\c1\src\button\Button.js: Support for the experimental syntax 'classProperties' isn't currently enabled (3:8):

  1 | export default class Button
  2 | {
> 3 |     el = null
    |        ^
  4 |     ...
  5 | }

如何通过使用符号链接在没有复制/粘贴的情况下使用另一个项目中的“组件”。

0 个答案:

没有答案