I'm trying to compare two variables and save the items that contain in one and do not contain in the other. In math it'd be like this: {{workflow.Variable1}} - {{workflow.Variable2}} = {{workflow.Variable3}} Example: {{workflow.Variable1}}: house, car, book and pen {{workflow.Variable2}}: car and pen then I wanted the code to generate the third variable as: {{workflow.Variable3}}: house and book The 3 variables are array