[GitHub] [couchdb-fauxton] ericlowry opened a new issue #1252: fauxton edit view format code button breaks es6 arrow functions

[GitBox <gi...@apache.org>]

ericlowry opened a new issue #1252: fauxton edit view format code button breaks es6 arrow functions 
URL: https://github.com/apache/couchdb-fauxton/issues/1252
 
 
   ## Description
   
   CouchDB 3.0 allows writing es6 arrow function closures, so instead of writing your map function like this:
   
   `function(doc) { if (doc.type === 'WIDGET' ) emit(doc.code,1); }`
   
   you can now do this:
   
   `doc => doc.type === 'WIDGET' && emit(doc.code,1)`
   
   or even this:
   
   `({type,code}) => type === 'WIDGET' && emit(code,1)`
   
   Works perfectly in CouchDB, returns the proper results in the view...
   
   But if you press the `Format Code` button in Fauxton, it breaks breaks the code, by injecting spaces between into the arrow function :-(
   
   ## Steps to Reproduce
   
   1. create a view and write a map function using an arrow function similar to the ones above.
   2. Save and test the view to see the arrow functions working
   3 edit you view and click the format code button, watch as it corrupts your beautiful view into something unrecognizable to couchdb...
   
   ## Expected Behaviour
   
   should format the code with an understanding of modern javascript, like prettier does ;-)
   
   ## Your Environment
   
   [TIP]:  # ( Include as many relevant details about your environment as possible. )
   [TIP]:  # ( You can paste the output of curl http://YOUR-COUCHDB:5984/ here. )
   
   * CouchDB version used: 3.0
   * Browser name and version: Chrome
   * Operating system and version: Docker, latest CouchDB container
   
   ## Additional Context
   
   I consider this a Bug and not a feature request because it breaks the code.  If I didn't like the formatting or something, than I would consider this a feature change...
   
   
   [TIP]:  # ( Add any other context about the problem here. )
   

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