JavaScript function to pluck truthy properties and functions from an Array of Objects

pick.js

// https://gist.github.com/sshaw/e21c9a7c82aff15359804e90ea7042a3
// Pluck truthy properties and functions from an Array of Objects 
//
// var a = [ {id: 123}, {id: 0}, {id: false}, {id: function() { return 'foo' }} ]
// pick('id', a) returns [123, 'foo']
// var f = pick('id')
// f(a)
var pick = function(property, array) {
    var picker = function(_array) {
        return _array.reduce(function(acc, v) {
            var value = v[property];
            if(typeof value === 'function')
                value = value();

            if(value)
                acc.push(value);

            return acc;
        }, []);
    };

    return array !== undefined ? picker(array) : picker;
};

export default pick;