.babelrc

{
    "presets": [
        "@babel/preset-env",
        "@babel/preset-flow"
    ],
    "plugins": [
        "add-module-exports",
        [
            "@babel/plugin-transform-runtime",
            {
                "corejs": 2
            }
        ],
        [
            "module-resolver",
            {
                "root": [
                    "./"
                ],
                "alias": {
                    "src": "./src",
                    "lib": "./lib"
                }
            }
        ],
        "@babel/plugin-syntax-dynamic-import",
        "@babel/plugin-syntax-import-meta",
        "@babel/plugin-proposal-class-properties",
        "@babel/plugin-proposal-json-strings",
        [
            "@babel/plugin-proposal-decorators",
            {
                "legacy": true
            }
        ],
        "@babel/plugin-proposal-function-sent",
        "@babel/plugin-proposal-export-namespace-from",
        "@babel/plugin-proposal-numeric-separator",
        "@babel/plugin-proposal-throw-expressions",
        "@babel/plugin-proposal-export-default-from",
        "@babel/plugin-proposal-logical-assignment-operators",
        "@babel/plugin-proposal-optional-chaining",
        [
            "@babel/plugin-proposal-pipeline-operator",
            {
                "proposal": "minimal"
            }
        ],
        "@babel/plugin-proposal-nullish-coalescing-operator",
        "@babel/plugin-proposal-do-expressions",
        "@babel/plugin-proposal-function-bind"
    ]
}