我有使用 Javascript/jQuery 的倒计时功能。
function countdownto(target, time, callback) {
var finish = new Date(time);
var s = 1000,
m = s * 60,
h = m * 60,
d = h * 24;
(function timer() {
var now = new Date();
var dist = finish - now;
var days = Math.floor(dist / d),
hours = Math.floor((dist % d) / h),
minutes = Math.floor((dist % h) / m),
seconds = Math.floor((dist % m) / s);
var timestring = days + 'days ' + hours + 'hrs ' + minutes + 'mins ' + seconds + 'seconds ';
target.html(timestring)
if (dist > 0) {
setTimeout(timer, 1000);
} else {
callback()
}
})()
}
// 10 seconds into the future
var time = "08/02/2021 17:05:00";
var time2 = "08/02/2021 17:33:00";
// countdown function call
countdownto($('#countdown'), time, function(){
console.log('tadaaa')
countdownto($('#countdown2'), time2, function(){
console.log('tadaaa')
})
})<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="countdown"></div>
<div id="countdown2"></div>现在我需要在那里添加函数 interval second 来获取当前的间隔时间。
我的问题是：如何在此函数中获取间隔时间：
countdownto($('#countdown'), time, function(){
console.log('tadaaa')
alert(time); // <-- how to get interval time? Alert not appear, as I know here when the countdown finish.
countdownto($('#countdown2'), time2, function(){
console.log('tadaaa')
})
})
从技术上讲，您已经将时间作为全局time变量中的字符串。如果你想把它传递给回调，你必须在调用回调的地方传递它：
function countdownto(target, time, callback) {
var finish = new Date(time);
var s = 1000,
m = s * 60,
h = m * 60,
d = h * 24;
(function timer() {
var now = new Date();
var dist = finish - now;
var days = Math.floor(dist / d),
hours = Math.floor((dist % d) / h),
minutes = Math.floor((dist % h) / m),
seconds = Math.floor((dist % m) / s);
var timestring = days + 'days ' + hours + 'hrs ' + minutes + 'mins ' + seconds + 'seconds ';
target.html(timestring)
if (dist > 0) {
setTimeout(timer, 1000);
} else {
callback(finish)
}
})()
}
// 10 seconds into the future
var time = "08/02/2021 17:05:00";
var time2 = "08/02/2021 17:33:00";
// countdown function call
countdownto($('#countdown'), time, function(time){
console.log('tadaaa')
alert(time); // <-- how to get interval time? Alert not appear, as I know here when the countdown finish.
countdownto($('#countdown2'), time2, function(){
console.log('tadaaa')
})
})<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="countdown"></div>
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