> ## Documentation Index
> Fetch the complete documentation index at: https://www.integrate.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# ETL: IsEmpty

> Check if a map or bag is empty, returning true, false, or null accordingly. Use ISEMPTY for conditional logic and data validation in ETL pipelines.

## Description

Returns true if the input map or bag is empty, false if the input contains items, or null if the input is null.

## Syntax

`IsEmpty(input_arg)`

## Arguments

*input\_arg* (string) - Bag or map argument.

## Examples

`IsEmpty(JsonStringToBag('[1,2,3]'))` returns `false`\
`IsEmpty(JsonStringToBag('[]'))` returns `true`\
`IsEmpty(JsonStringToBag(''))` returns `null`

## Return value datatype

boolean

## Impact of null value

If input is null, null is returned.