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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.
@HughB
After assignment x can not be changed. Though I think you can get away with it in an app if you are just uploading an app file to storage. If you try do a pull request the automated build will kick out any assigments of x after the initial assignment.