Nx: Tree shaking issue

[krzysztof-grzybek]

Expected Behavior

Unused code should be tree shaked with ng build --prod.

In example repo:
unusedFunction from apps/myapp/src/app/myFile.ts:8 shouldn't be present in bundled file.

Current Behavior

Unused code isn't tree shaked with ng build --prod.

In example repo:
unusedFunction from apps/myapp/src/app/myFile.ts:8 is present in bundled file.

Failure Information (for bugs)

I suspect that tree shaking doesn't work. unusedFunction mentioned above should be tree shaked from build.

Steps to Reproduce

I created small repo to reproduce the issue here.

1. Clone repo
2. npm i
3. npm run build:prod
4. Check main js file in dist/apps/myapp - unusedFunction is in bundled file.

Context

Please provide any relevant information about your setup:

@nrwl/[email protected]
Angular CLI: 7.0.6

Other

I checked similar situation in project created with just ng cli (ng new) and unused function wasn't present in build.

[FrozenPandaz]

Good catch!

I am working on a fix. To manually fix, you can add "module": "es2015" to compilerOptions in tsconfig.json

[krzysztof-grzybek]

Thank You for quick response!