Vue.jsをTypeScriptと使うメモ -設定-(@vue/cliは使わずに)

設定

必要なpackageを取得

npm install vue-property-decorator
npm install --save-dev typescript webpack webpack-merge

tsconfig(基本的に推奨構成より)

{
  "compilerOptions": {
    "target": "es5",
    "module": "es2015",
    "strict": true,
    "moduleResolution": "node",
    "noImplicitAny": true,  // 暗黙のany
    "strictNullChecks": true,  //nullやundefinedを明示するように
    "noImplicitThis": true,
    "moduleResolution": "node",
    // importのpathを./src/...から@src/...に
    "paths": {
      "@src/*": ["src/*"]
    }, 
    "include": [
      "./src/**/*.ts"
    ]
  }
}

includeなどは自分の設定に合わせて…

webpack設定

webpack.common.js

const path = require('path');
const VueLoaderPlugin = require('vue-loader/lib/plugin')
const webpack = require('webpack')

module.exports = {
  entry: {
    app: ["./src/index.ts"]
  },
  output: {
    filename: "[name].bundle.js",
    path: path.resolve(__dirname, "public/js")
  },
  resolve: {
    extensions: [".js", ".ts", ".vue", ".json", ".css"],
    alias: {
      vue$: "vue/dist/vue.esm.js",
      // importのpathを./src/...から@src/...に
      '@src': path.resolve(__dirname, './src')
    },
    modules: ["node_modules"]
  },
  plugins: [
    new VueLoaderPlugin(),
  ]
}

開発用のビルドと本番用のビルドで分けたりする。(sourcemap出力したり)

webpack.dev.js

// 開発ビルド用
const merge = require('webpack-merge')
const common = require('./webpack.common.js')

module.exports = merge(common, {
  mode: 'development',
  module: {
    rules: [
      {
        test: /\.vue$/,
        exclude: /node_modules/,
        loader: 'vue-loader',
        options: {
          cssModules: {
            camelCase: true
          }
        }
      },
      {
        test: /\.ts$/,
        exclude: '/node_modules/',
        use: [
          {
            loader: 'ts-loader',
            options: {
              appendTsSuffixTo: [/\.vue$/]
            }
          }
        ]
      },
    ]
  }
})