babel.config.json

{
  "presets": [
    [
      "@babel/env",
      {
        "modules": "auto",
        "targets": {
          "node": true
        },
        "useBuiltIns": false
      }
    ],
    [
      "@babel/preset-typescript", {
        "allowNamespaces": true,
        "allowDeclareFields": true
      }
    ]
  ],
  "plugins": [
    "istanbul",
    "add-module-exports",
    [
      "@babel/plugin-transform-runtime",
      {
        "absoluteRuntime": false,
        "corejs": false,
        "helpers": true,
        "regenerator": true,
        "useESModules": false
      }
    ],
    "@babel/plugin-proposal-function-bind",
    "@babel/plugin-proposal-export-default-from",
    "@babel/plugin-proposal-logical-assignment-operators",
    [
      "@babel/plugin-proposal-optional-chaining", {
        "loose": false
      }
    ],
    [
      "@babel/plugin-proposal-pipeline-operator", {
        "proposal": "minimal"
      }
    ],
    [
      "@babel/plugin-proposal-nullish-coalescing-operator", {
        "loose": false
      }
    ],
    "@babel/plugin-proposal-do-expressions",

    [
      "@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-syntax-dynamic-import",
    "@babel/plugin-syntax-import-meta",
    [
      "@babel/plugin-proposal-class-properties", {
        "loose": false
      }
    ],
    "@babel/plugin-proposal-json-strings"
  ],
  "generatorOpts": {
    "compact": false
  }
}