keith
3
The way that this plugin and “Run JavaScript” work is that they execute eval() on the string expression that you provide in the large text field.
So, when your inputs are empty, this generates a syntax error because your string is something like:
( * )/2
which isn’t valid JavaScript. So you can use the Conditions tab on the Expression element to make the Expression field only filled when your 2 source inputs aren’t empty.
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