JavaScript Compile Error

[Brooooooklyn]

TypeScript Version:

v2.5.2

Code

export default connect(
  dispatch => ({
    onTab: index => {
      dispatch(tab(index))
    },
    onClickBeginDesign: (beingDesigned, latestTemplateId, data) => {
      if (!data.content.title.value || !data.content.title.value.length) { }
    }
  })
)(MyComponent)

{
  "compilerOptions": {
    "target": "es5",
    "outDir": "./lib",
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "allowJs": true
  },
  "exclude": [
    "node_modules"
  ]
}

Expected behavior:

Compile success

Actual behavior:

[mhegazy]

Should be fixed in typescript@next now. fixed by #18417