设置 webpack 和 vue3

Question

我正在尝试使用 webpack 和 typescript 设置 vue3。目前我遇到的问题是，每当我尝试运行 webpack serve 时，浏览器控制台内都会出现警告：

runtime-core.esm-bundler.js:3413 You are running the esm-bundler build of Vue. It is recommended to configure your bundler to explicitly replace feature flag globals with boolean literals to get proper tree-shaking in the final bundle. See http://link.vuejs.org/feature-flags for more details.

我不明白。我的 webpack-config 如下：

const path = require("path")

module.exports = {
    mode: 'development',
    entry: './src/index.ts',
    devtool: 'inline-source-map',
    module: {
        rules: [
            {
                test: /\.tsx?$/,
                use: 'ts-loader',
                exclude: /node_modules/,
            },
        ],
    },
    resolve: {
        alias: {
            vue: "vue/dist/vue.esm-bundler.js"
        },
        extensions: ['.tsx', '.ts', '.js'],
    },
    output: {
        filename: 'bundle.js',
        path: path.resolve(__dirname, 'dist'),
    },
}

这是 tsconfig:

{
    "compilerOptions": {
        "outDir": "./dist/",
        "noImplicitAny": true,
        "module": "es6",
        "target": "es5",
        "allowJs": true,
        "moduleResolution": "node"
    }
}

我想要一个没有此警告的配置，然后继续支持 sfc！

Answer 1

来自link你的错误。

The build will work without configuring these flags, however it is strongly recommended to properly configure them in order to get proper tree-shaking in the final bundle.

这应该可以解决您的问题。

const path = require("path");
const webpack = require('webpack');

module.exports = {
    mode: 'development',
    entry: './src/index.ts',
    devtool: 'inline-source-map',
    module: {
        rules: [
            {
                test: /\.tsx?$/,
                use: 'ts-loader',
                exclude: /node_modules/,
            },
        ],
    },
    resolve: {
        alias: {
            vue: "vue/dist/vue.esm-bundler.js"
        },
        extensions: ['.tsx', '.ts', '.js'],
    },
    output: {
        filename: 'bundle.js',
        path: path.resolve(__dirname, 'dist'),
    },
    plugins: [
        new webpack.DefinePlugin({
            "__VUE_OPTIONS_API__": true,
            "__VUE_PROD_DEVTOOLS__": false,
        });
    ],
}

还值得补充的是，@vue-cli 是 vue 项目的标准工具。

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