angular - webpack 2 ts-loader 排除 node_modules 不工作

Question

我尝试在 webpack 2 中使用 typescript 2.2.2 和 babel 加载器并排除 node_modules，但是当尝试 webpack 命令时仍然从 node_modules 中的 angular 4.0.0 中得到错误。

webpack.congfig.js:

var path = require('path');
var webpack = require('webpack');

var PROD = true;

    module.exports = {
        entry: path.join(__dirname, 'ng2', 'src','index.js'),
        output: {
            path: path.join(__dirname, 'ng2', 'dist'),
            filename: 'vendorNG2.js'
        },
        devtool: 'eval',
        resolve: {
            extensions: [".tsx", ".ts", ".js"]
        },
        watch: true,
        module: {
            rules: [
                {
                    test: /\.tsx?$/,
                    loader: 'ts-loader',
                    exclude: [/node_modules/],
                },
                {
                    test: /\.js$/,
                    exclude: [/node_modules/],
                    use: {

                        loader: "babel-loader?cacheDirectory=true",
                        options: {
                            presets: ['es2015']
                        }
                    }
                },
            ]
        },
        plugins: PROD ? [
            new webpack.optimize.UglifyJsPlugin({
                 compress: { warnings: false }
            })
      ] : []
    }

在 webpack --progress 命令之后:

...
ERROR in /home/user/Projects/project/front/node_modules/angular2/src/facade/lang.d.ts
(13,17): error TS2693: 'Map' only refers to a type, but is being used as a value here.

ERROR in /home/user/Projects/project/front/node_modules/angular2/src/facade/lang.d.ts
(14,17): error TS2693: 'Set' only refers to a type, but is being used as a value here.

ERROR in ./ng2/src/app/main.ts
(19,14): error TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.

您可以看到来自 node_modules 的错误。

tsconfig.json v1:

{
  "compilerOptions": {
    "outDir": "./dist/",
    "sourceMap": true,
    "noImplicitAny": true,
    "module": "commonjs",
    "target": "es5",
    "jsx": "react",
    "allowJs": true
  }
}

tsconfig.json v2:

{
  "compilerOptions": {
    "outDir": "./ng2/dist/",
    "sourceMap": true,
    "noImplicitAny": true,
    "module": "commonjs",
    "target": "es5",
    "jsx": "react",
    "type":[],
    "allowJs": true
  },
  "exclude": [
    "node_modules"
  ]
}

v2 错误:

ERROR in /home/user/Projects/project/front/admin/tsconfig.json
error TS5023: Unknown compiler option 'type'.
 @ ./ng2/src/index.js 8:0-21

ERROR in ./ng2/src/app/main.ts
Module build failed: error while parsing tsconfig.json
 @ ./ng2/src/index.js 8:0-21

tsconfig.js v3 add ("experimentalDecorators": true) 一些错误消失了:

{
  "compilerOptions": {
    "outDir": "./ng2/dist/",
    "sourceMap": true,
    "noImplicitAny": true,
    "module": "commonjs",
    "target": "es5",
    "jsx": "react",
     "experimentalDecorators": true,
    "allowJs": true
  },
  "exclude": [
    "node_modules"
  ]
}

v3 错误:

.../home/user/Projects/project/front/node_modules/angular2/src/facade/lang.d.ts 中的错误(13,17): 错误 TS2693: 'Map' 只引用了一个类型，但在这里被用作一个值。

/home/user/Projects/project/front/node_modules/angular2/src/facade/lang.d.ts 中的错误 (14,17): 错误 TS2693: 'Set' 仅指类型，但在此处用作值。

Answer 1

您是否已将 exclude node_modules 添加到您的 tsconfig 中？

{
  "compilerOptions": {
    "outDir": "./dist/",
    "sourceMap": true,
    "noImplicitAny": true,
    "module": "commonjs",
    "target": "es5",
    "jsx": "react",
    "allowJs": true
  },
  "exclude": [
    "node_modules"
  ]
}

此外，您没有指定您使用的是哪个版本的 Typescript 和 Angular。

编辑:您更新了问题以指定您使用的是 Angular 4，但更新后的错误显示 node_modules/angular2/文件夹似乎不正确。在继续之前，请尝试删除您的 node_modules 文件夹并再次运行 npm install。

否则看起来您遇到了打字问题。你有安装任何@types吗？

这是我的 tsconfig.json 设置示例:

{
    "compilerOptions": {
        "target": "ES5",
        "module": "commonjs",
        "moduleResolution": "node",
        "sourceMap": true,
        "emitDecoratorMetadata": true,
        "experimentalDecorators": true,
        "lib": [ "es2015", "dom" ],
        "removeComments": false,
        "noImplicitAny": false,
        "types": [ "jasmine", "lodash", "core-js" ],
        "typeRoots": [
            "../node_modules/@types"
        ]
    },
    "exclude": [
        "node_modules",
        "wwwroot",
        "temp"
    ]
}

我的 node_modules 文件夹在父目录中，所以我在 typeRoots 中指定它。我还安装了以下类型:

"@types/core-js": "0.9.37",
"@types/jasmine": "2.5.43",
"@types/lodash": "4.14.55",