Batery Status

xxx

Battery level: xxx

Online Status

Online/Ofline xxx

Keybord

function init() {
//complete the code below
    plat.innerText = 'xxx';
    navigator.geolocation
      .getCurrentPosition(p =>
        loc.innerText = 'xxx'
      );
    navigator.getBattery().then(b =>
        lev.innerText = 'xxx'
      );
    check()
}
function check() {
//complete the code below
    fetch(url.value).then(r => 
      resp.innerText = r.ok? 'OK' : 'xxx'
    ).catch(e => 
      resp.innerText = 'err'
    )
}