strictly speaking, this can be done not by js, but by the browser. This is the API of the platform. Modern browsers can also monitor the network status, access Bluetooth/contacts/camera/speech recognition/geo/generate binary files (this is one of the most frequent cases of my practice).
strictly speaking, this can be done not by js, but by the browser. This is the API of the platform. Modern browsers can also monitor the network status, access Bluetooth/contacts/camera/speech recognition/geo/generate binary files (this is one of the most frequent cases of my practice).
The full list of progressive features of the platform can be found here developer.mozilla.org/ru/docs/Web/API