title	titleSuffix	description	author	ms.author	ms.reviewer	ms.service	ms.subservice	ms.topic	ms.devlang	ms.date	ms.custom
IS_ARRAY	Azure Cosmos DB for NoSQL	An Azure Cosmos DB for NoSQL system function that returns a boolean indicating whether an expression is an array.	jcodella	jacodel	sidandrews	cosmos-db	nosql	reference	nosql	02/27/2024	query-reference

IS_ARRAY (NoSQL query)

[!INCLUDENoSQL]

Returns a boolean value indicating if the type of the specified expression is an array.

Syntax

IS_ARRAY(<expr>)

	Description
`expr`	Any expression.

Returns a boolean expression.

The following example checks objects of various types using the function.

:::code language="nosql" source="~/cosmos-db-nosql-query-samples/scripts/is-array/query.sql" highlight="2-10":::

:::code language="json" source="~/cosmos-db-nosql-query-samples/scripts/is-array/result.json":::