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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@DrAzzy
What things can generate this error?
Is there any way that I can find out what line this is ocurring on? I have this coming up in my animation code seemingly at random, and I can't seem to figure out what is failing and returning undefined.