babel.config.js

module.export = {
  presets: [
    [
      "@babel/env",
      {
        "targets": {
          "edge": "17",
          "firefox": "60",
          "chrome": "67",
          "safari": "11.1",
          "browsers": ["last 2 versions", "ie >= 7"]
        }
      }
    ]
  ],
  plugins: [
    [
      "@babel/plugin-proposal-decorators",
      {
        legacy: true
      }
    ],
    "@babel/plugin-transform-runtime",
    "@babel/plugin-syntax-dynamic-import",
    "@babel/plugin-proposal-object-rest-spread",
    "transform-vue-jsx"
  ],
  "env": {
    "test": {
      "presets": [
        "@babel/env",
        {
          "targets": {
            "edge": "17",
            "firefox": "60",
            "chrome": "67",
            "safari": "11.1",
            "browsers": ["last 2 versions", "ie >= 7"]
          }
        }
      ],
      "plugins": [
        [
          "@babel/plugin-proposal-decorators",
          {
            "legacy": true
          }
        ],
        "@babel/plugin-transform-runtime",
        "@babel/plugin-syntax-dynamic-import",
        "@babel/plugin-proposal-object-rest-spread",
        "transform-vue-jsx"
      ]
    }
  }
}


    // "@babel/plugin-transform-class-properties",