fold

Aggregate all the returned objects into a list, then emit the list.

Synopsis

fold()

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.

The fold() step is a map step. It aggregates all the returned objects into a list, then emits the list into the next traversal step.

Get back a list of all the persons that each person knows:

g.V().hasLabel('person').out('knows').values('name').fold()