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esshorten provides name mangler, this shorten names in JavaScript code. mangler accepts JavaScript AST and generate modified AST with shortened names.

We can use this with,

esshorten.mangle(AST);

And we can pass options to mangler,

esshorten.mangle(AST,{// If false, AST is copied deeply (default: true)destructive:false,// If false, avoid [JSC bug](https://github.com/mozilla/sweet.js/issues/138) (default: false)distinguishFunctionExpressionScope:false});

When destructive option is set to false, esshorten copies AST and modifies it.

Copyright (C) 2013Yusuke Suzuki(twitter:@Constellation) and other contributors.

Redistribution and use in source and binary forms, with or withoutmodification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyrightnotice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyrightnotice, this list of conditions and the following disclaimer in thedocumentation and/or other materials provided with the distribution.

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