If it only weren’t for that crippled "using" syntax. On the other hand, though: const denialOfService = res => void navigator.lock(res); I mean, one might

If it only weren’t for that crippled "using" syntax. On the other hand, though: const denialOfService = res => void navigator.lock(res); I mean, one might write this just as well with the callback interface, but this is much easier to do accidentally.