In JavaScript, everything is 'truthy' or 'falsy', and for numbers 0
means false
, everything else true
. So you could write:
if ($(selector).length)
You don't need that >0
part.
The approach you suggest is not guaranteed to give you the result you're looking for - what if you had a tbody
for example:
<table id="myTable">
<tbody>
<tr>...</tr>
<tr>...</tr>
</tbody>
</table>
You would end up with the following:
<table id="myTable">
<tbody>
<tr>...</tr>
<tr>...</tr>
</tbody>
<tr>...</tr>
</table>
I would therefore recommend this approach instead:
$('#myTable tr:last').after('<tr>...</tr><tr>...</tr>');
You can include anything within the after()
method as long as it's valid HTML, including multiple rows as per the example above.
Update: Revisiting this answer following recent activity with this question. eyelidlessness makes a good comment that there will always be a tbody
in the DOM; this is true, but only if there is at least one row. If you have no rows, there will be no tbody
unless you have specified one yourself.
DaRKoN_ suggests appending to the tbody
rather than adding content after the last tr
. This gets around the issue of having no rows, but still isn't bulletproof as you could theoretically have multiple tbody
elements and the row would get added to each of them.
Weighing everything up, I'm not sure there is a single one-line solution that accounts for every single possible scenario. You will need to make sure the jQuery code tallies with your markup.
I think the safest solution is probably to ensure your table
always includes at least one tbody
in your markup, even if it has no rows. On this basis, you can use the following which will work however many rows you have (and also account for multiple tbody
elements):
$('#myTable > tbody:last-child').append('<tr>...</tr><tr>...</tr>');
Best Answer
fullCalendar
permits that instead of passing an array of events, you can pass a function which, for example, downloads the events from a server, or dynamically generates those events.Most examples in the documentation use HTTP requests to get events data. But the callback function is still flexible enough to make it work the way you want.
Look at the following example I've just written for you:
The above function automatically generates an event for every Monday and Wednesday between two dates. The dates are indicated in
start
andend
params. Those params are passed byfullCallendar
. Events generated by the above function are returned tofullCallendar
through thecallback
function in third param.I use DateJS to test if a given date is monday.
UPDATE: If you want to mix static events and/or [more than one] repeatable event, you can use addEventSource.