Documentation
Debugging
Sometimes it’s hard to figure out what your errors are. This section identifies common problems and what you can do to fix them.
Common Problems
RuntimeError: UNDEFINED is not callable at: …
This probably means you tried to call a function that isn’t defined. If you’re calling a built-in function, check to make sure you’ve spelled it correctly with the correct cases. typeof(x) is not the same as typeOf(x) - the first will result in the error, the second will not.
SyntaxError: Expected “(“, “.”, “;”, “?”, “[”, “and”, “or”, addition or subtraction operator, assignment operator, comment, end of line, equality operator, multiply, divide, or modulo operator, relational operator, or whitespace but “…” found. at: …
You probably forgot a ; at the end of an expression.