Native iteration over cursor-like objects with synchronize.js.
Given a cursor-like object - one with an asynchronous #next method - produces an ES6 iterator.
var sync = ;var syncIter = ;sync;
This pattern sometimes comes up if you want to iterate over a MongoDB cursor. You might be tempted
to use the
forEach from mongojs:
This clearly doesn't integrate well with synchronize, and you'd have to add a special
call for when
user is finally
null. You might then decide to try
This integrates better with synchronize, but now it's a bit ugly. Some people might even factor it
while loop. Instead, use
$ npm install synchronize-iterate
Creates an iterator for the given cursor.
Note that this will throw an error if one tries to iterate twice:
// in a fibervar iter = ;for var value of iter;for var value of iter; // throws an error
You can also pass an optional batch size which will cause the iterator to return results in bulk.
// in a fiberlet iter = ;for var value of iter// value is an array or 5 elements (or fewer if there were not five// left to retrieve)
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