On: Closure Compiler vs Rollup vs Webpack

[cromwellian]

You can see some of the original research I did on this in my old blog post: http://timepedia.blogspot.com/2009/08/on-reducing-size-of-co... I followed up by researching different clustering metrics including something called LZDIST instead of edit-distance. http://timepedia.blogspot.com/2009/11/traveling-salesman-pro...

I think it works better for GWT than for Closure because GWT's optimizer permits inlining functions in some circumstances even if they increase code size. This causes repetitious fragments to appear, and re-ordering the code to bring those fragments within GZIP's compression window functions as kind of a late-stage "anti-inliner/common subexpression elimination"