Syntax

JOIN(delimiter, value_or_array1, [value_or_array2, ...])

Arguments

The printed syntax lists 3 argument(s), in order:

  • delimiter
  • value_or_array1
  • alue_or_array optional

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

Description from Google Docs Editors Help

“Concatenates the elements of one or more one-dimensional arrays using a specified delimiter.”

Google’s help article for JOIN →

Source: Google Docs Editors Help, “Google Sheets function list” (support.google.com/docs/table/25273), record record 431 of 516, data fetched 28 September 2026. Data month: September 2026.