underscore.js - Group objects by property in javascript -

how convert this:

[     {food: 'apple', type: 'fruit'},     {food: 'potato', type: 'vegetable'},     {food: 'banana', type: 'fruit'}, ]

into this:

[     {type: 'fruit', foods: ['apple', 'banana']},     {type: 'vegetable', foods: ['potato']} ]

using javascript or underscore

assuming original list contained in variable named list:

_ .chain(list) .groupby('type') .map(function(value, key) {     return {         type: key,         foods: _.pluck(value, 'food')     } }) .value();

Kiastu