nodejs, mongodb get array of only specified fields value

Question

Is it possible to get an array of a specified fields value in mongodb?

Like instead of getting:

[{"color":"blue"},{"color":"red"}]

I would like to get:

["blue","red"]

Is this question clear enough?

How would you know what properties' values to extract as the array contains objects? — WiredPrairie
– WiredPrairie, Commented Apr 6, 2014 at 19:26

levi · Accepted Answer · 2014-04-06 19:08:23Z

1

You can run array.map on the results array to achieve the desired result:

var colors = [{"color":"blue"},{"color":"red"}].map(function(obj){
    return obj.color;
});

answered Apr 6, 2014 at 19:08

levi

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