Array.pluck

[ghost]

Good complement to Array.invoke, this method is in Prototype and ExtJS (off the top of my head; there could be others).

[cpojer]

Sure whynot.

[arian]

Very nice!

Alternative implementation without relying on .map and function calls, which should be a bit faster:

Array.implement({

    pluck: function(property){
        var length = this.length >>> 0, results = new Array(length);
        for (var i = 0; i < length; i++){
            if (i in this) results[i] = this[i][property];
        }
        return results;
    }

});

jsperf: http://jsperf.com/pluck