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Applies to: ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel
Returns true if the argument is an empty string or is null.
Syntax
isempty(value)
Learn more about syntax conventions.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| value | string |
✔️ | The value to check if empty or null. |
Returns
A boolean value indicating whether value is an empty string or is null.
Example
| x | isempty(x) |
|---|---|
| "" | true |
| "x" | false |
| parsejson("") | true |
| parsejson("[]") | false |
| parsejson("{}") | false |