Question

I want to check whether the variable is storing blank value or not.
I tried out comparing it with ” or “” or NULL or null, but does not work.

Answer 1

You can try out below solution

storeValue  |  element  |  test
store       |           |  j  (blank value)
gotoIf      |  storedVars['test']==storedVars['j']  |  true
getEval     |  alert("test Variable Value is not blank")
gotolabel   |  finish
label       |  true
getEval     |  alert("test Variable Value is blank")
label       |  finish