To have a check inside Harness workflows for the JEXL variables like workflow variable, service variable or context variable used in Harness for a
This check can be implemented by a JEXL method to check for null values, i.e.
Having checks for null value would be beneficial:
When values for the variable are generated during the workflow run time and for better error handling it can be used
To have conditional execution of steps and phase base on condition, for example a variable has null value then skip this respective step/phase
Following are examples of how to check for
null values inside the Harness workflow: