tracker issue : CF-4020372

Pls implement shortcut notation for function expression as arrow functions, eg:

// long-hand
{code:java}
f = function(x,y){
   return x +y;
}
{code}


// short hand
{code:java}
f = (x,y) => x+y;
{code}


Full syntax rules here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions

this just makes it easier (clearer?) when using a lot of inline function expressions, such as BDD-inspired unit tests and the like.

Note Lucee has an implementation using a skinny arrow rather than match JS which uses the fat arrow.

Also they have implemented them to not be closures. Please do not do that.

Relevant Lucee tickets:
https://luceeserver.atlassian.net/browse/LDEV-249
https://luceeserver.atlassian.net/browse/LDEV-250
https://luceeserver.atlassian.net/browse/LDEV-252

Thanks

-- 
Adam

----------------------------- Additional Watson Details -----------------------------

Watson Bug ID:	4020372

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External Customer Name: Adam
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