Filtering through a multidimensional array using underscore.js

Question

I have an array of event objects called events. Each event has markets, an array containing market objects.

Answer 1

Try this:

_.filter(events, function(me) { 
    return me.event && 
        me.event.market && me.event.market.outcome && 
        'test' in me.event.market.outcome
}); 

DEMO