It's hardware - so you could just enable it (set to 'manual' mode) and then not kick it in order to reboot.
However you may find E.reboot() is more sensible if you want to trigger a hard reset
E.reboot()
@Gordon started
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.
It's hardware - so you could just enable it (set to 'manual' mode) and then not kick it in order to reboot.
However you may find
E.reboot()
is more sensible if you want to trigger a hard reset