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This routine is available since starting with katl-commons 1.0 . |
Syntax
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isNull(variable)
Description
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Checks if the provided variable is null or has no value associated and returns true. Otherwise returns false. |
Parameters
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Parameter name | Required | Description |
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variable | Yes | The value that you want tested. The value argument can be a string or a variable of any type. |
Return type
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boolean (true/false)
Examples
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If isNull returns true the variable has no value attached. isNull will return false for zero for numeric variables or blank for character/string |
See also
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