Variables, an advanced feature of Fake, allow you to store a value once which can then be accessed multiple times in a Workflow. Variables can be set in two ways:
Using the Set Value of Variable Action found in the Action Library.
Using JavaScript by calling window.fake.set('myVarName', 'some value') in a Do JavaScript Action.
Once you have set a Variable's value, it may be accessed in one of two ways:
Typing ${myVarName} into any Action's text field.
Calling window.fake.get('myVarName') in a Do JavaScript Action.