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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
When I copy and paste from the forum (for example, I copy/pasted your code from the port expander example thread for the error checking on mode), it seems to randomly but deterministically insert non-printing characters. Specifically, between index and Of in indexOf, it inserted character code 0xAD once (which appears as a placeholder or invisible character (depending on the viewer), and between the d and e of mode on the first line, it inserts two of them. Always 0xAD
This is... kinda bad on a forum where we post code that people new to Espruino will try to use - even if it's not Espruino's fault, to a new user, it would look like it...