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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.
@fanoush
Not all of 64KB is usable for variables, more like 40KB, see output of
process.memory()(each variable is 13 bytes for MDBT42Q). Uploading to ram is big waste of ram/variables, better upload to flash in this case. You can also enable pretokenization in WebIDE that should make it even smaller.