// track state of nosleep locally to avoid a null case error // when nosleep.disable is called without first calling .enable let wakeLock = false; const noSleep = (enable = false) => { // get a nosleep controller if (!noSleep.controller) noSleep.controller = new NoSleep(); // don't call anything if the states match if (wakeLock === enable) return false; // store the value wakeLock = enable; // call the function if (enable) return noSleep.controller.enable(); return noSleep.controller.disable(); }; export default noSleep;