.babelrc

{
    "presets": [
      "es2015",
      "stage-0",
      "react",
      ["env", {
        "modules": false,
        "targets": {
          "browsers": ["> 1%", "last 2 versions", "not ie <= 8"]
        }
      }],
      "stage-2"
    ],
    "plugins": [
      [
        "transform-runtime",
        {
          "helpers": false,
          "polyfill": false,
          "regenerator": true,
          "moduleName": "babel-runtime"
        }
      ],
      [
          "import",
          { "libraryName": "antd", "libraryDirectory": "lib" },
          "ant"
      ],
      [
          "import",
          { "libraryName": "antd-mobile", "libraryDirectory": "lib" },
          "antd-mobile"
      ],
      "babel-plugin-transform-class-properties"
    ],
      "env": {
      "test": {
        "presets": [["env"], "react", "stage-0"],
        "plugins": ["transform-runtime", "transform-decorators-legacy", "babel-plugin-transform-class-properties"]      
      }
    }
  }