build-tools-babel/.babelrc

Configurations to use babel

{
  "presets": [
    [ "@babel/preset-env", { "targets": { "browsers": "ie 10" }}]
  ],
  "plugins": [
    [ "@babel/plugin-proposal-decorators", { "legacy": true }],
    [ "@babel/plugin-proposal-class-properties", { "loose" : true }],
    "@babel/plugin-transform-regenerator"
  ]
}