count

Get a count of the traverser that precedes the count step.

Synopsis

count()

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 count() step is a map step that counts whatever precedes it.

Examples

Count the number of reviews for each recipe, then print the recipe name, the review count, and the review average stars given"

g.V().hasLabel('recipe').as('recipe','numberOfReviews','meanRating').
  select('recipe','numberOfReviews','meanRating').
    by('name').
    by(inE('reviewed').count()).
    by(inE('reviewed').values('stars').mean())