How to merge objects while in mongo shell?

Question

I have N objects and i want to merge them. In my case i'm sure there won't be any collisions.

I have:

var a = {'name': 'Freeman'}
var b = {'email': 'g.freeman@mesa.com'}

and i need :

c => {'name': 'Freeman', 'email': 'g.freeman@mesa.com'}

Is there a smart way to do that?

Thanks in advance!

Trivia: I want to merge these objects while a reduce job

Answer 1

The link posted by Anand solved my issue. Thanks!

This does what i need:

for (var attrname in b) { a[attrname] = b[attrname]; }

source: How can I merge properties of two JavaScript objects dynamically?

Thanks Anand!