Could you please tell me if there is a stopwatch js code:
& lt; html & gt;
& lt; head & gt;
& lt; meta http-equiv = "Content-Type" content = "text / html; charset = UTF-8" & gt;
& lt; title & gt; Timer & lt; / title & gt;
& lt; script type = "text / javascript" & gt;
function init ()
{
sec = 0;
setInterval (tick, 1000);
}
function tick ()
{
seC++;
document.getElementById ("timer").
childNodes [0] .nodeValue = sec;
}
& lt; / script & gt;
& lt; / head & gt;
& lt; body onload = "init ()" & gt;
& lt; div id = "timer" & gt; 0 & lt; / div & gt;
& lt; / body & gt;
& lt; / html & gt; Answer 1, authority 100%
As one of the variations, a regular stopwatch:
window.onload = () = & gt; {
StartStop ();
}
// declare variables
var base = 60;
var clocktimer, dateObj, dh, dm, ds, ms;
var readout = '';
var h = 1,
m = 1,
tm = 1,
s = 0,
ts = 0,
ms = 0,
init = 0;
// function to clear the field
function ClearWITHlock () {
clearTimeout (clocktimer);
h = 1;
m = 1;
tm = 1;
s = 0;
ts = 0;
ms = 0;
init = 0;
readout = '00: 00: 00 ';
document.MyForm.stopwatch.value = readout;
}
// function to start the stopwatch
function StartTIME () {
var cdateObj = new Date ();
var t = (cdateObj.getTime () - dateObj.getTime ()) - (s * 1000);
if (t & gt; 999) {
s ++;
}
if (s & gt; = (m * base)) {
ts = 0;
m ++;
} else {
ts = parseInt ((ms / 100) + s);
if (ts & gt; = base) {
ts = ts - ((m - 1) * base);
}
}
if (m & gt; (h * base)) {
tm = 1;
h ++;
} else {
tm = parseInt ((ms / 100) + m);
if (tm & gt; = base) {
tm = tm - ((h - 1) * base);
}
}
ms = Math.round (t / 10);
if (ms & gt; 99) {
ms = 0;
}
if (ms == 0) {
ms = '00';
}
if (ms & gt; 0 & amp; & amp; ms & lt; = 9) {
ms = '0' + ms;
}
if (ts & gt; 0) {
ds = ts;
if (ts & lt; 10) {
ds = '0' + ts;
}
} else {
ds = '00';
}
dm = tm - 1;
if (dm & gt; 0) {
if (dm & lt; 10) {
dm = '0' + dm;
}
} else {
dm = '00';
}
dh = h - 1;
if (dh & gt; 0) {
if (dh & lt; 10) {
dh = '0' + dh;
}
} else {
dh = '00';
}
readout = dh + ':' + dm + ':' + ds;
document.MyForm.stopwatch.value = readout;
clocktimer = setTimeout ("StartTIME ()", 1);
}
// Start and stop function
function StartStop () {
if (init == 0) {
ClearWITHlock ();
dateObj = new Date ();
StartTIME ();
init = 1;
} else {
clearTimeout (clocktimer);
init = 0;
}
} & lt; form name = MyForm & gt;
& lt; input name = stopwatch size = 10 value = "00: 00: 00.00" disabled & gt;
& lt; / form & gt; Answer 2, authority 40%
// Stopwatch
// initial variables
min = 0;
hour = 0;
// Leave your function
function init () {
sec = 0;
setInterval (tick, 1000);
}
// The main function is tick ()
function tick () {
seC++;
if (sec & gt; = 60) {// set numeric parameters that change during the program
min ++;
sec = sec - 60;
}
if (min & gt; = 60) {
hour ++;
min = min - 60;
}
if (sec & lt; 10) {// Visual design
if (min & lt; 10) {
if (hour & lt; 10) {
document.getElementById ('timer'). innerHTML = '0' + hour + ': 0' + min + ': 0' + sec;
} else {
document.getElementById ('timer'). innerHTML = hour + ': 0' + min + ': 0' + sec;
}
} else {
if (hour & lt; 10) {
document.getElementById ('timer'). innerHTML = '0' + hour + ':' + min + ': 0' + sec;
} else {
document.getElementById ('timer'). innerHTML = hour + ':' + min + ': 0' + sec;
}
}
} else {
if (min & lt; 10) {
if (hour & lt; 10) {
document.getElementById ('timer'). innerHTML = '0' + hour + ': 0' + min + ':' + sec;
} else {
document.getElementById ('timer'). innerHTML = hour + ': 0' + min + ':' + sec;
}
} else {
if (hour & lt; 10) {
document.getElementById ('timer'). innerHTML = '0' + hour + ':' + min + ':' + sec;
} else {
document.getElementById ('timer'). innerHTML = hour + ':' + min + ':' + sec;
}
}
}
}