javascript group array of objects lodash
var cars = [{'make':'audi','model':'r8','year':'2012'},{'make':'audi','model':'rs5','year':'2013'},{'make':'ford','model':'mustang','year':'2012'},{'make':'ford','model':'fusion','year':'2015'},{'make':'kia','model':'optima','year':'2012'},];
var grouped = _.groupBy(cars, function(car) {
return car.make;
});
console.log(grouped);