Translations:ExpressionScript How-tos/19/en
From LimeSurvey Manual
Here are common errors so you can see the tooltips
Variables used before they are declared: notSetYet
Unknown Function: iff(numPets > numKids,1,2)
Unknown Variable: sum(age,num_pets,numKids)
Wrong # parameters: sprintf(),if(1,2),date()
Assign read-only-vars:TOKEN:ATTRIBUTE_1+=10,name='Sally'
Unbalanced parentheses: pow(3,4,(pow(3,4),pow(3,4))