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isempty()
Returns true if the argument is an empty string or is null.
isempty("") == true
Syntax
isempty([value])
Returns
Indicates whether the argument is an empty string or isnull.
| x | isempty(x) |
|---|---|
| "" | true |
| "x" | false |
| parsejson("") | true |
| parsejson("[]") | false |
| parsejson("{}") | false |
Example
View
| where isempty(fieldName)
| count