constant
Set a constant value.
Synopsis
constant(value)
Description
The constant() step is a map step that is often useful with choose() or coalesce() steps,.
Examples
Use constant(0) to designate zero as the value for any returns that are not a number, such as NaN (not a number):
g.V().hasLabel('person').as('person','starCount').
select('person','starCount').
by('name').
by(coalesce(outE('reviewed').values('stars'),constant(0)).mean()).
order().by(select('starCount'), decr)
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