.babelrc

{
    "presets": [
        [
            "@blueking/babel-preset-bk",
            {
                "targets": {
                    "browsers": ["> 1%", "last 2 versions", "not ie <= 8"],
                    "node": "current"
                  }
            }
        ]
    ],
    "plugins": [
        "lodash",
        ["@babel/plugin-proposal-decorators", { "legacy": true }],
        ["@babel/plugin-proposal-class-properties", { "loose" : true }],
        ["@babel/plugin-proposal-private-methods", { "loose": true }],
        ["@babel/plugin-proposal-private-property-in-object", { "loose": true }],
        "babel-plugin-parameter-decorator"
    ]
}