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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
It's only needed if you want to get everything working as soon as you upload the code.
After a save it makes no difference - in fact if you're using setInterval in onInit (without a clearInterval before) then it might actually be better not to have the call at the bottom of your code, or you might end up with two sets of intervals!