Dan Bucholtz danbucholtz

## _purify.md

      
        
          
            
              
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                IgorMinar
                / _purify.md
            
            
              Last active
              March 30, 2017 11:55
            
              
                purify.js with cli and webpack plugin - simple and super-hackish Uglify pre-optimizer
              
          
        
      
        
  
      
    This is a super-hacky tool that processes JavaScript bundless before they are fed to Uglify.
Purify adds @__PURE__ annotation in front of all IIFE's that represent ES classes downleveled by TypeScript.
This annotation then enables Uglify 2.8+ to safely recognize if the class is not used and remove it.
You can use it webpack-plugin or cli.
Angular developers will need the bundle to be also processed by alxhub/ngo before the full effect can be seen.