Deep Flatten JavaScript Object Recursively

Question

Data:

var data = [
    {
      \"id\": 1,
      \"level\": \"1\",
      \"text\": \"Sammy\",
      \"type\": \"Item\",
      \"items\": [
               


        

Answer 1

Using _.flatMapDeep (available since Lodash 4.7):

var flatten = function(item) {
  return [item, _.flatMapDeep(item.items, flatten)];
}

var result = _.flatMapDeep(data, flatten);