Answers for "filter two object array lodash"

lodash get difference between two arrays of objects

var presents = _.intersectionWith(array1, array2, _.isEqual);
var dif = _.differenceWith(array1, array2, _.isEqual);

lodash merge array of objects without duplicates

var c = _.map(a, function(obj) {
    return _.assign(obj, _.find(b, {parentId: obj.aId}));
})