map

Map a portion of the query.

Synopsis

map(traversal)
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 map() step is a general map step. This step creates a map of the traverser to some object for the next step to process.

Examples

List all recipes and a map of their ingredients:
g.V().hasLabel('recipe').as('recipe').
  map(__.in('includedIn').values('name').fold()).as('ingredients').
  select('recipe','ingredients').
    by('name').
    by()