Lodash has a "map" function that works just like jQuerys:
var myArr = [{ name: "john", age:23 },_x000D_
{ name: "john", age:43 },_x000D_
{ name: "jimi", age:10 },_x000D_
{ name: "bobi", age:67 }];_x000D_
_x000D_
var johns = _.map(myArr, function(o) {_x000D_
if (o.name == "john") return o;_x000D_
});_x000D_
_x000D_
// Remove undefines from the array_x000D_
johns = _.without(johns, undefined)
_x000D_