array_length()

Applies to: ✅ Microsoft Fabric ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel

Calculates the number of elements in a dynamic array.

Deprecated aliases: arraylength()

Syntax

array_length(array)

Learn more about syntax conventions.

Parameters

Name	Type	Required	Description
array	dynamic	✔️	The array for which to calculate length.

Returns

Returns the number of elements in array, or null if array isn't an array.

Examples

The following example shows the number of elements in the array.

Run the query

print array_length(dynamic([1, 2, 3, "four"]))

Output

print_0
4