Develop Reference

update fullCalendar( ‘getDate’ ) regularly

I need to update a moment variable like
var moment = calendar.fullCalendar('getDate');
regularly by using setInterval function but that doesn't have any effect and the moment variable is always the same. Is there a method to have the current moment updated each X seconds ?
thanks,

Perhaps I've misunderstood, but it's not really clear why you want to use fullCalendar's getDate function. This will return the date currently selected in fullCalendar. Updating that every few seconds wouldn't be much use - it'll only change whenever the user selects a new date.
If you want to report the actual current time, you can do it easily using momentJS directly, something like this:
var m;
function currentTime() {
m = moment();
console.log(m.toISOString());
}
setInterval(currentTime, 1000);
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.min.js"></script>

How to add separator between time and meridiem(AM?PM) in clockpicker?

I am using clockpicker for time selection and in that I have used twelvehour:true parameter which displays time with AM/PM. Now the time display using it is like
11:55AM ==> 11:55 AM
whereas I want separator in between time and meridiem
So, there is an event beforeDone/afterDone but no example given so not getting how to use that event to change the value?
How can I separator between time and meridiem(AM?PM) in clockpicker? Thanks

Using afterDone looks like the easiest way to add the separator. It looks like afterDone is just a property you set when you make the input field a clockpicker (in the same place you tell it twelvehour:true). I found this page which was helpful in showing the events: https://weareoutman.github.io/clockpicker/jquery.html
I made this jsfiddle for you http://jsfiddle.net/1e71occs/4/. The JavaScript code is:
$('.container').each(function(){
var clockpicker = $(this).find('input').clockpicker({
autoclose: true,
twelvehour:true,
afterDone: function() {
console.log("after done");
clockpicker.val(clockpicker.val().slice(0,-2)+' '+clockpicker.val().slice(-2));
}
});
// Manual operations
$(this).find('.button-a').click(function(e){
// Have to stop propagation here
e.stopPropagation();
clockpicker.clockpicker('show').clockpicker('toggleView', 'minutes');
});
$(this).find('.button-b').click(function(e){
// Have to stop propagation here
e.stopPropagation();
clockpicker.clockpicker('show').clockpicker('toggleView', 'hours');
});
});
I had to do the var clockpicker = bit to get a reference to the clockpicker so I could change its value to include the seperator. I tried using $(this).val() but it seems to refer to the $(window).

I added this as an option, along with several more involving twelve hour time here: https://github.com/diracleo/bootstrap-clockpicker

How to compare datetime in javascript

I have been trying to get the code to work for more then 2 hours, then I tried this site, well there is alot of code here! I have used each of them. Some are in jQuery while some were pure JavaScript.
Here is two of the code that I have tried:
First code: This code was caught from this link: https://stackoverflow.com/a/2725097/1762944
var dateTimeStr = "17:10:03";
var user_time = DateTime.Parse( dateTimeStr );
var time_now = DateTime.Now;
if( time_now > user_time )
{
// your code...
}
Second code: This one is jQuery. It worked for the asker, and was marked as answer too. It works I have checked the fiddle provided by him! But when I tried the code, it didn't work either. Here:
function time_until() {
currentTime = Math.floor(jQuery.now() / 1000);
seconds = eventTime - currentTime;
if(second == 0){
//Stop voting
}
days = Math.floor(seconds / (60 * 60 * 24));
$('#time').html('seconds ' + seconds + '<br/>days ' + days);
}
I have tried to edit them both. But they don't work.
Reason why they work: The reason behind this all, is that what I want to do is,
I have a database table which is storing the time for users. I mean when they made an activity such like posting status updates!
I have created a timestamp. Which shows perfectly like this: few seconds ago.
Now what I want is, to update the time to 1 minute ago without reloading the page, like Facebook does. Or whatever the time is, to get updated to the next minute or hour or corresponding.
What I have tried is almost next to everything. But I guess the only issue with my codes is that when I place the DateTime.Now value from Database in it, it shows an error. The error is hidden so I have created an else statement like this:
if(seconds < 60) {
$("#jstime").html(seconds + "seconds..");
// else if minutes, if hours they are all written..and then an else
} else {
$("#jstime").html("Again an error, try again bud");
}
I have a setInterval which keeps on updating the id with the error text.
Here is the code that I am using.
<span id="timeval" title="#timeStamp">#TimeStamp</span></div>
<input type="hidden" id="time" value="9/23/2013 8:10:40 PM" />
<span>Real time: #TimeStamp</span><br>
<span id="update">Updated time: no update till now;</span><br>
<span id="jstime">Time</span>
The timeval is the real time that is being shown to the users, input is the time from where I get the value of the time on each post, the next span just shows the time to me, I mean I used this to check what was the time when the page was loaded, update is the span to show the updated time, jstime can also be used to show the updated time.

The problem is that you stored currentTime in the function you call every n seconds. As it gets looped it will everytime create a new current time.
Make it a global variable so you can loop through the function without creating the time new and use the old time instead.

Please go to link on stackoverflow and see my answer on how can we compare two dates along with the time in Javascript.

working with filenames and scheduled function calls in javascript

I have a couple questions about javascript:
Does javascript have the capability to identify a filename with a timestamp as a name?
Similar to the Perl code below utilizing the POSIX module?
my $filepath = sprintf("/path/to/file%s.JSON",strftime("%y%m%d",localtime));
this is just an example. I would like to find file in format yy/mm/dd/hh/min
For example say I want to find a file with the name 12_11_03_15:15.json how can I do this with javascript.
Say I create a function that I want to trigger every 15 minutes to read the file how is this possible with javascript? I looked at setInterval() but that won't work because it is dependent on when the browser is launched. Is it possible to schedule a function to execute every hh:00, hh:15, hh:30, hh:45?
Thank you very much in advance.

You can use the Date class to get information about the current time.
To schedule a function to run at a certain time, setInterval() is indeed the best choice. It seems like what you're really looking for is a way to find out when to start the first interval such that it will fall on a quarter-hour. For that, you should again use Date to get the current time and subtract it from the next quarter-hour; you can use the resulting value with setTimeout to time the start of the first interval.
Here's an example: http://jsfiddle.net/GSF6C/3/
var nextQuarterHour = new Date();
nextQuarterHour.setMilliseconds(0);
nextQuarterHour.setSeconds(0);
do {
nextQuarterHour.setMinutes(nextQuarterHour.getMinutes() + 1);
} while (nextQuarterHour.getMinutes() % 15)
var millisecondsToNextQuarterHour = nextQuarterHour.getTime() - Date.now();
document.write(millisecondsToNextQuarterHour);
setTimeout(function () {
alert("Ding!");
setInterval(function () { alert("Dong!"); }, 15 * 60 * 1000);
}, millisecondsToNextQuarterHour);
​
​

Passed Variable not working with my function - Javascript

I've got text entry box and a countdown on the same page. I want to take the time from the box and enter it into the counter. I've got a variable back from the text box "setTime". I wanted to put that directly into my timeSplit function (to convert the time into seconds) but when I do I get an error that "time.split is not a function". What am I doing wrong here?
When I have a static variable enter the function (e.g. time = "12:12:12") everything works perfectly. - except its not using the right time
When I run the pop up alert on setTime before the timeSplit function I see my time like this "12:12:12" so its coming from the counter without a problem and I don't get a NaN error
Why would a time variable work when its static but not when its passed
I tried converting the setTime to a string but that just lead to NaN errors even when I tried to convert the sec variable back to an int.
I think this is the relevant code let me know if you need more.
var setTime = 0;
var $fromTime = $("#formEntry");
$("#setTime").off("click").on("click", function(){
setTime = $fromTime.val();
});
function timeSplit(){
//time = "12:12:12";
tt = time.split(":");
sec = tt[0]*3600+tt[1]*60+tt[2]*1;
return sec;
}
var time = setTime;
//var time = "12:12:12";
var sec = timeSplit(time);

Your function timeSplit() does not take any arguments. It needs to be timeSplit(time) so that JavaScript knows you are talking about calling the method .split() on an object called time rather than a function just called time.split().
If this wasn't just a typo (I've done that before), I suggest you read up some on function arguments and parameters so you know you understand how this works, it's really important.