_.whereDeep

_.whereDeep.js

/**
 * Pimped version of `_.where` (https://lodash.com/docs#where) that can recurse deep.
 *
 * @param {Array|Object|string} collection The collection to search.
 * @param {Object} source The object of property values to match.
 * @param {String} prop The property of the collection to recurse into.
 * @returns {Array} the new filtered array.
 */
var whereDeep = function (collection, source, prop) {
    'use strict';

    return _.where(collection, source).concat(_.flatten(_.map(collection, function (item) {
        return whereDeep(item[prop], source, prop);
    })));
};