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Google closure compiler: Learnings from it.


  • Produces optimized results
  • Should be well tested as used by Google
  • Supports Splits.


  • Very obscure documentation, very few resources
  • Build system doesn't understand NPM module system completely, it does add support but you need to provide all the files which are needed to build the resource:

example: java -jar compiler.jar --dependency_mode=STRICT --entry_point=js/index.js --module_resolution=NODE --js_output_file=js/dist.js --js=js/**.js --js=node_modules/jquery/dist/jquery.js --js=node_modules/jquery/package.json --js=package.json

  • Does not support CSS build or any other asset build
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