unfold

Unfold a returned object into a linear form.

Synopsis

unfold()
Table 1. Legend
Syntax conventions Description
Lowercase and uppercase Literal keyword. Includes ().
Italics Variable value. Replace with a user-defined value.
[] Optional. Square brackets ( [] ) surround optional command arguments. Do not type the square brackets.
{} Group. Braces ( {} ) identify a group to choose from. Do not type the braces.
| Or. A vertical bar ( | ) separates alternative elements. Type any one of the elements. Do not type the vertical bar.
... Repeatable. An ellipsis ( ... ) indicates that you can repeat the syntax element as often as required.

Description

The unfold() step is a flatMap step. Unfold a returned object into a linear form, such as a map into each individual value.

Examples

Find the top three countries that the most people have lived in:
g.V().hasLabel('person').values('country').
  groupCount().
  order(local).
    by(values, decr).
  limit(local, 3).
  select(keys).unfold()