Javascript 跳过秒
Javascript skips seconds
我是javascript的新手,我想在它执行指定功能之前创建一个 6 小时倒数计时器,但时间显示完全错误
我哪里做错了,如何才能正确显示小时、分钟和秒?
这是代码
function startTimer(duration, display) {
var start = Date.now(),
diff,
minutes,
seconds;
function timer() {
// get the number of seconds that have elapsed since
// startTimer() was called
diff = duration - (((Date.now() - start) / 1000) | 0);
// does the same job as parseInt truncates the float
minutes = (diff / 60 * 360) | 0;
seconds = (diff % 60) | 0;
minutes = minutes < 10 ? "0" + minutes : minutes;
seconds = seconds < 10 ? "0" + seconds : seconds;
display.textContent = minutes + ":" + seconds;
if (diff <= 0) {
// add one second so that the count down starts at the full duration
// example 05:00 not 04:59
start = Date.now() + 1000;
}
};
// we don't want to wait a full second before the timer starts
timer();
setInterval(timer, 1000);
}
window.onload = function() {
var fiveMinutes = 60 * 2,
display = document.querySelector('#time');
startTimer(fiveMinutes, display);
};
<span id="time" style="background:white;border:2px solid green;color:green;paddding:5px;"></span> To Delete Your Account
<!DOCTYPE html>
<html>
<head></head>
<body>
<div id='time'></div>
<script type="text/javascript">
function startTimer(duration, display) {
setInterval(function() {
duration = duration - 1;
if (duration == -1) {
clearInterval(duration);
return;
}
var seconds = duration % 60;
var minutes = Math.floor(duration / 60);
var hours = Math.floor(minutes / 60);
minutes %= 60;
hours %= 60;
display.textContent = hours + ":" + minutes + ":" + seconds;
}, 1000);
}
window.onload = function() {
var sixhours = 60 * 60 * 6
display = document.querySelector('#time');
startTimer(sixhours, display);
};
</script>
</body>
</html>
您正在计算每次执行的分钟数。仅在秒数达到 0
.
时才计算分钟
function startTimer(duration, display) {
var start = Date.now(),
diff,
minutes,
seconds;
function timer() {
// get the number of seconds that have elapsed since
// startTimer() was called
diff = duration - (((Date.now() - start) / 1000) | 0);
// does the same job as parseInt truncates the float
if(!minutes) minutes = (diff / 60 * 360) | 0
seconds = (diff % 60) | 0;
minutes = seconds<=0?(minutes-1) : minutes;
minutes = minutes < 10 ? "0" + minutes : minutes;
seconds = seconds < 10 ? "0" + seconds : seconds;
display.textContent = minutes + ":" + seconds;
if (diff <= 0) {
// add one second so that the count down starts at the full duration
// example 05:00 not 04:59
start = Date.now() + 1000;
}
};
// we don't want to wait a full second before the timer starts
timer();
setInterval(timer, 1000);
}
window.onload = function() {
var fiveMinutes = 60 * 2,
display = document.querySelector('#time');
startTimer(fiveMinutes, display);
};
<span id="time" style="background:white;border:2px solid green;color:green;paddding:5px;"></span> To Delete Your Account
我是javascript的新手,我想在它执行指定功能之前创建一个 6 小时倒数计时器,但时间显示完全错误
我哪里做错了,如何才能正确显示小时、分钟和秒?
这是代码
function startTimer(duration, display) {
var start = Date.now(),
diff,
minutes,
seconds;
function timer() {
// get the number of seconds that have elapsed since
// startTimer() was called
diff = duration - (((Date.now() - start) / 1000) | 0);
// does the same job as parseInt truncates the float
minutes = (diff / 60 * 360) | 0;
seconds = (diff % 60) | 0;
minutes = minutes < 10 ? "0" + minutes : minutes;
seconds = seconds < 10 ? "0" + seconds : seconds;
display.textContent = minutes + ":" + seconds;
if (diff <= 0) {
// add one second so that the count down starts at the full duration
// example 05:00 not 04:59
start = Date.now() + 1000;
}
};
// we don't want to wait a full second before the timer starts
timer();
setInterval(timer, 1000);
}
window.onload = function() {
var fiveMinutes = 60 * 2,
display = document.querySelector('#time');
startTimer(fiveMinutes, display);
};
<span id="time" style="background:white;border:2px solid green;color:green;paddding:5px;"></span> To Delete Your Account
<!DOCTYPE html>
<html>
<head></head>
<body>
<div id='time'></div>
<script type="text/javascript">
function startTimer(duration, display) {
setInterval(function() {
duration = duration - 1;
if (duration == -1) {
clearInterval(duration);
return;
}
var seconds = duration % 60;
var minutes = Math.floor(duration / 60);
var hours = Math.floor(minutes / 60);
minutes %= 60;
hours %= 60;
display.textContent = hours + ":" + minutes + ":" + seconds;
}, 1000);
}
window.onload = function() {
var sixhours = 60 * 60 * 6
display = document.querySelector('#time');
startTimer(sixhours, display);
};
</script>
</body>
</html>
您正在计算每次执行的分钟数。仅在秒数达到 0
.
function startTimer(duration, display) {
var start = Date.now(),
diff,
minutes,
seconds;
function timer() {
// get the number of seconds that have elapsed since
// startTimer() was called
diff = duration - (((Date.now() - start) / 1000) | 0);
// does the same job as parseInt truncates the float
if(!minutes) minutes = (diff / 60 * 360) | 0
seconds = (diff % 60) | 0;
minutes = seconds<=0?(minutes-1) : minutes;
minutes = minutes < 10 ? "0" + minutes : minutes;
seconds = seconds < 10 ? "0" + seconds : seconds;
display.textContent = minutes + ":" + seconds;
if (diff <= 0) {
// add one second so that the count down starts at the full duration
// example 05:00 not 04:59
start = Date.now() + 1000;
}
};
// we don't want to wait a full second before the timer starts
timer();
setInterval(timer, 1000);
}
window.onload = function() {
var fiveMinutes = 60 * 2,
display = document.querySelector('#time');
startTimer(fiveMinutes, display);
};
<span id="time" style="background:white;border:2px solid green;color:green;paddding:5px;"></span> To Delete Your Account