Edycja Kodeks:
Zobacz wynik »
Spróbuj sam - ©
w3ii.com
<!DOCTYPE html> <html> <body> <p>Click the button to see if the browser is online.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var x = "Is the browser online? " + navigator.onLine; document.getElementById("demo").innerHTML = x; } </script> </body> </html>