Stopwatch

 Stopwatch

Function app() {

Onclick start() {

Function reset () {

Return'00:00:00';

return(

OnClick (start) 

OnClick (stop) 

OnClick (reset) 

}

Let hours =math.floor (elapsedTime/1000*60*60)

1000*60*60

(1000)%60);

Return (<></>);

Export default App;