function drawCountDown(date, path){
// Set the date we're counting down to
var countDownDate = Date.parse(date);
// Update the count down every 1 second
var x = setInterval(function() {
// Get todays date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
if (hours < 10) hours = "0" + hours;
if (minutes < 10) minutes = "0" + minutes;
if (seconds < 10) seconds = "0" + seconds;
// Output the result in an element with id="clock"
document.getElementById(path).innerHTML = days + " days " + hours + ":" + minutes + ":" + seconds;
// If the count down is over, write some text
if (distance < 0) {
drawCountDown(date, path);
}
}, 1000);
};
drawCountDown(darw_date[0], "euro-millions-timer");
drawCountDown(darw_date[1], "euro-millions-timer2");
Hello,
I have this function the count down to event I have (I get this date from api). I have couple events that happens couple of time during the week and I need to call the function every time the event is over to start count again.
I wrote if statement but I don't know if I can call the function again with the same parameters for the event specific.
you can see the last two lines- every one of them give other time for different events and I want to call the function when she stop count again with the same parameters individual.
can't figure how to do that.
Thanks.
Related
I'm trying to have a simple countdown timer that converts a time given on a page to a countdown.
It works, but my current issue is how the normal date is shown and then later it's parsed by the JavaScript. I want it parsed by JS right away so a user doesn't see it flicking between the date and the countdown timer.
It converts this to the countdown:
<span class="countdown">12/10/20 13:10:00</span>
This is the code:
if ($('.countdown').length)
{
$.each( $('.countdown'), function( key, value )
{
var time_listed = $(value).text();
var countdown_object = $(value);
// Set the date we're counting down to
var countDownDate = new Date(time_listed).getTime();
// Update the count down every 1 second
var x = setInterval(function()
{
// Get today's date and time
var now = new Date().getTime();
// Find the distance between now and the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Display the result in the element with id="demo"
countdown_object.text (days + " days " + hours + "h "
+ minutes + "m " + seconds + "s ");
// If the count down is finished, write some text
if (distance < 0)
{
clearInterval(x);
countdown_object.text("EXPIRED");
}
}, 1000);
});
}
What I am asking for, is suggestions on how to get around this problem. Is the only way to have it loaded before the HTML or what? I'm confused on the best practices for this. Everywhere keeps telling me to defer JavaScript loading...but what about stuff like this that changes the content?
In cases like this, is it a good idea to have a "core" file for content-changing stuff that loads right away, then the rest after the content or what?
The problems comes from setInterval not executing automatically , which is normal. Here's a work around it:
if ($('.countdown').length)
{
$.each( $('.countdown'), function( key, value )
{
var time_listed = $(value).text();
var countdown_object = $(value);
// Set the date we're counting down to
var countDownDate = new Date(time_listed).getTime();
var counterFunction = function()
{
// Get today's date and time
var now = new Date().getTime();
// Find the distance between now and the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Display the result in the element with id="demo"
countdown_object.text (days + " days " + hours + "h "
+ minutes + "m " + seconds + "s ");
// If the count down is finished, write some text
if (distance < 0)
{
clearInterval(x);
countdown_object.text("EXPIRED");
}
return counterFunction;
}
// Update the count down every 1 second
var x = setInterval(counterFunction(), 1000);
});
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<span class="countdown">12/10/20 13:10:00</span>
I suggest to put the date in data-date attr, like this:
<span data-date="12/10/20 13:10:00" class="countdown"></span>
than the script:
if ($('.countdown').length)
{
$.each( $('.countdown'), function( key, value )
{
var time_listed = $(value).attr("data-date");
var countdown_object = $(value);
// Set the date we're counting down to
var countDownDate = new Date(time_listed).getTime();
// Update the count down every 1 second
var x = setInterval(function()
{
// Get today's date and time
var now = new Date().getTime();
// Find the distance between now and the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Display the result in the element with id="demo"
countdown_object.text (days + " days " + hours + "h "
+ minutes + "m " + seconds + "s ");
// If the count down is finished, write some text
if (distance < 0)
{
clearInterval(x);
countdown_object.text("EXPIRED");
}
}, 1000);
});
}
https://jsfiddle.net/750o1neh/
I have used a countdown to get the difference between two times. When I use the special time the timer stops despite time gets the difference when refreshing the browser I find it already counts but it doesn't show counting seconds.
<p id="demo"></p>
<script>
// given the city's UTC offset
function calcTime(city, offset) {
// create Date object for current location
d = new Date();
// convert to msec
// add local time zone offset
// get UTC time in msec
utc = d.getTime() + (d.getTimezoneOffset() * 60000);
// create new Date object for different city
// using supplied offset
nd = new Date(utc + (3600000*offset));
// return time as a string
return nd;
}
var xx = calcTime('country1', '+3');
var x1 = calcTime('country2', '-1');
// Set the date we're counting down to
var countDownDate = new Date(xx).getTime();
var now = new Date(x1).getTime();
// Update the count down every 1 second
var x = setInterval(function() {
// Get todays date and time //1527885631789
//var now2 = new Date().getTime(); //1527871237519
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
document.getElementById("demo").innerHTML = hours + "h "
+ minutes + "m " + seconds + "s ";
// If the count down is over, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("demo").innerHTML = "EXPIRED";
}
}, 1000);
</script>
When I use var now = new Date().getTime(); the countdown works. What is the problem in my code ?
Although I'm still not clear on what you want, I believe the following code behaves how you want. The trick is that you need to update now at every interval.
// given the city's UTC offset
function calcTime(city, offset) { .. unchanged ..}
var xx = calcTime('country1', '+3');
// Set the date we're counting down to
var countDownDate = new Date(xx).getTime();
// Update the count down every 1 second
var x = setInterval(function() {
// calculate the current time
var now = new Date(calcTime('country2', '-1')).getTime();
// Get todays date and time //1527885631789
//var now2 = new Date().getTime(); //1527871237519
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
console.log(hours + "h " + minutes + "m " + seconds + "s ");
// If the count down is over, write some text
if (distance < 0) {
clearInterval(x);
console.log("EXPIRED");
}
}, 1000);
This code for a countdown timer is taken from W3Schools:
// Set the date we're counting down to
var d = new Date();
var n = d.getTimezoneOffset() * 60000;
var countDownDate = new Date("May 2, 2018 15:54:25").getTime();
// Update the count down every 1 second
var x = setInterval(function() {
// Get todays date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now - n;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
document.getElementById("demo").innerHTML = days + "d " + hours + "h "
+ minutes + "m " + seconds + "s ";
// If the count down is over, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("demo").innerHTML = "EXPIRED";
}
}, 1000);
There was a big issue with it: any date I enter would not work for different timezones, as if it was +1 hour UTC it would expire, and it would be an hour long if it was -1.
So I added the d.getTimezoneOffset() * 60000; to get the milliseconds difference, and then took it off, so if there is any difference it should calculate it.
Will it always work if I put an UTC date in the future, or is there a possible difference I don't know about (for example a special country or daylight savings that could mess it up)?
I'm using the following JavaScript for a countdown timer and it has been working great in most browsers, I've just double checked Internet Explorer however and I am getting 'NaN' displayed in place of each number.
Can anyone help to explain where this goes wrong in IE not seeing the individual variables as a number?
// Set the date we're counting down to
var countDownDate = new Date("2018-05-25 12:00:00").getTime();
// Update the count down every 1 second
var x = setInterval(function() {
// Get todays date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
if (days.toString().length < 2) {
days = "0" + days;
}
if (hours.toString().length < 2) {
hours = "0" + hours;
}
if (minutes.toString().length < 2) {
minutes = "0" + minutes;
}
if (seconds.toString().length < 2) {
seconds = "0" + seconds;
}
// Display the result in the element with id="countdown"
document.getElementById("countdown").innerHTML = days + " : " + hours + " : " +
minutes + " : " + seconds;
// If the count down is finished, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("countdown").innerHTML = "<a href='/register'>Countdown Expired</a>";
}
}, 1000);
<span id="countdown"></span>
MDN discourages the use of a string in the date constructor because not all browsers implement this the same way.
If you do want to use date strings, I would recommend using a third party library like momentjs to parse these strings to make sure this works in every browser.
Just normalise the date and time
function getNormalisedDatetime(dString) { // yyyy-mm-dd hh:mm:ss
var parts = dString.split(" ");
var dParts = parts[0].split("-");
var tParts = parts[1].split(":");
return new Date(dParts[0],dParts[1]-1,dParts[2],tParts[0],tParts[1],tParts[2]);
}
function pad(num) {
return ("0"+num).slice(-2);
}
// Set the date we're counting down to
var countDownDate = getNormalisedDatetime("2018-05-25 12:00:00").getTime();
// Update the count down every 1 second
var x = setInterval(function() {
// Get todays date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Display the result in the element with id="countdown"
document.getElementById("countdown").innerHTML = "" + pad(days) + " : " + pad(hours) + " : " +
pad(minutes) + " : " + pad(seconds);
// If the count down is finished, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("countdown").innerHTML = "<a href='/register'>Countdown Expired</a>";
}
}, 1000);
<span id="countdown"></span>
I am trying to make a Countdown Timer in javascript and I wrote a code like
var countdown = function(){
setInterval(function() {
var countDownDate = new Date(document.getElementById("end_date").getAttribute("data-date")).getTime();
// data-date ex. = "2017-11-28 21:54:00"; greater than current date (now)
// Get todays date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Display the result in the element with id="demo"
if(hours<10){
hours = "0"+hours;
}
if(minutes<10){
minutes = "0"+minutes;
}
if(seconds<10){
seconds = "0"+seconds;
}
var left = hours + ":"+ minutes + ":" + seconds;
console.log(left);
document.getElementById("time_left").innerHTML = left;
// If the count down is finished, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("time_left").innerHTML = "EXPIRED";
}
}, 1000);
}
countdown();
Counter is working fine but why I am getting difference of time upto 25 secs on different systems. Some systems shows same countdown time but, some not.
you should use your sever time and java script take the system time so when u change your system time count down will change automatically. you can also provide me your code using js fiddle or anything else...