About underscore.map

Question

I have the following object

{one : 1, two : 2, three : 3}

and I would like

[1,2]

Here my code

_.map({one : 1, two : 2, three : 3}, function(num, key){ 
         if (key==='one' || key==='two') {
             return num;
         } 
}); // [1, 2, undefined]

Actually I would like [1,2]

How can I improve my code?
thanks

Answer 1

You actually want to use _.pick and _.values:

_.values( _.pick( obj, "one", "two" ) )