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弹出create-react-app后无法使用扩展运算符

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我使用create-react-app来创建一个react应用程序 .

运行弹出后，我无法使用扩展运算符，如下所示：

//eslint-disable-next-line 
const { children, ...attributes } = this.props; //Line 19

当我开始纱线开始时，它一直给我这个错误

第19行：解析错误：意外的令牌..

Webpack Dev Server我尝试将所有预设和转换插件添加到webpack dev server config和.babelrc但没有运气

// Process JS with Babel.
          {
            test: /\.(js|jsx|mjs)$/,
            include: paths.appSrc,
            loader: require.resolve('babel-loader'),    


            options: {
              presets:['react','es2015','env',"stage-2"],
              plugins: ["transform-object-rest-spread"],
              // This is a feature of `babel-loader` for webpack (not Babel itself).
              // It enables caching results in ./node_modules/.cache/babel-loader/
              // directory for faster rebuilds.
              cacheDirectory: true,
            },
          },
          // "postcss" loader app

而在babel rc文件中也是如此//.babelrc

{
    "presets":["env","react","stage-2"],
    "plugins": [
      ["transform-object-rest-spread", { "useBuiltIns": true }]
    ]
  }

如果我不弹出脚本，它工作正常 .

reactjs babel create-react-app

1 回答

  • 2

    所以这个问题最终成了问题 . Webpack配置在babel之前加载它

    添加解析器选项修复了它 .

    {
        test: /\.(js|jsx|mjs)$/,
        enforce: 'pre',
        use: [
          {
            options: {
              formatter: eslintFormatter,
              eslintPath: require.resolve('eslint'),
              "extends": "airbnb",
              "parserOptions":{
                "ecmaFeatures": {
                  "experimentalObjectRestSpread": true
                }
              }

            },
            loader: require.resolve('eslint-loader'),
          },
        ],
        include: paths.appSrc,
      },
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