Syntax

BYROW(array_or_range, LAMBDA)

Arguments

The printed syntax lists 2 argument(s), in order:

  • array_or_range
  • LAMBDA

“optional” marks an argument Google prints in square brackets; “repeatable” marks one Google prints with “…”.

Description from Google Docs Editors Help

“Groups an array by rows by application of a LAMBDA function to each row.”

Google’s help article for BYROW →

Source: Google Docs Editors Help, “Google Sheets function list” (support.google.com/docs/table/25273), record record 481 of 516, data fetched 28 September 2026. Data month: September 2026.