我尝试创建一个具有多个计时器的网站。我使用了网站上的脚本。 但在此脚本中不可能重置一个计时器或两个计时器。 我想从头开始重新启动timer1，所以我必须先重置计时器。 如何重置计时器以使用新值启动它？
最后，我想启动Timer1，然后用Timer1的剩余时间+Timer2的新时间启动Timer2。
function countdown(element, minutes, seconds) {
// Fetch the display element
var el = document.getElementById(element);
// Set the timer
var interval = setInterval(function() {
if (seconds == 0) {
if (minutes == 0) {
(el.innerHTML = "STOP!");
clearInterval(interval);
return;
} else {
minutes--;
seconds = 60;
}
}
if (minutes > 0) {
var minute_text = minutes + (minutes > 1 ? ' minutes' : ' minute');
} else {
var minute_text = '';
}
var second_text = seconds > 1 ? '' : '';
el.innerHTML = minute_text + ' ' + seconds + ' ' + second_text + '';
seconds--;
}, 1000);
}
//Start as many timers as you want
var start1 = document.getElementById('timer1');
var start2 = document.getElementById('timer2');
start1.onclick = function() {
countdown('countdown1', 0, 15);
}
start2.onclick = function() {
countdown('countdown2', 0, 10);
}<html>
<head>
</head>
<body>
<div id='countdown1'></div>
<div id='countdown2'></div>
<input id="timer1" type="button" value="Start timer 1" />
<input id="timer2" type="button" value="Start timer 2" />
</body>
</html>感谢您的帮助
最佳答案
您可以将间隔作为属性绑定(bind)到元素本身。
if ( el.interval )
{
clearInterval( el.interval );
}
// Set the timer
var interval = el.interval = setInterval(function() {
演示
function countdown(element, minutes, seconds) {
// Fetch the display element
var el = document.getElementById(element);
if ( el.interval )
{
clearInterval( el.interval );
}
// Set the timer
var interval = el.interval = setInterval(function() {
if (seconds == 0) {
if (minutes == 0) {
(el.innerHTML = "STOP!");
clearInterval(interval);
return;
} else {
minutes--;
seconds = 60;
}
}
if (minutes > 0) {
var minute_text = minutes + (minutes > 1 ? ' minutes' : ' minute');
} else {
var minute_text = '';
}
var second_text = seconds > 1 ? '' : '';
el.innerHTML = minute_text + ' ' + seconds + ' ' + second_text + '';
seconds--;
}, 1000);
}
//Start as many timers as you want
var start1 = document.getElementById('timer1');
var start2 = document.getElementById('timer2');
start1.onclick = function() {
countdown('countdown1', 0, 15);
}
start2.onclick = function() {
countdown('countdown2', 0, 10);
}<html>
<head>
</head>
<body>
<div id='countdown1'></div>
<div id='countdown2'></div>
<input id="timer1" type="button" value="Start timer 1" />
<input id="timer2" type="button" value="Start timer 2" />
</body>
</html>关于javascript - JS中重置多个定时器，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49049575/