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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.
@Gordon
Hi Kim,
Number range: Espruino uses 64 bit integers wherever possible (so +/- 2^63), however as soon as you start doing floating point stuff (even
100/50) it'll drop back to doubles, where 2^53 is probably the limit before you lose accuracy.Performance: The overhead of parsing is really much higher than that of maths, so (at least at the moment) you're unlikely to notice a big difference whatever numbers you use. Trying to stick to integer values will probably help though (you can coerce doubles into integers using
|- eg.x=x|0.Unicode: yes, characters in Strings are only 8 bits - so if you want to do Unicode you'll have to use UTF-8. Espruino itself is completely unaware though, which could make life tricky.