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Java List.add() UnsupportedOperationException
...t about this by reading the documentation of UnsupportedOperationException and List.add(), which documents this to be an "(optional operation)". The precise meaning of this phrase is explained at the top of the List documentation.
As a workaround you can create a copy of the list to a known-modifia...
How to get the full url in Express?
...sume to be http unless you see that req.get('X-Forwarded-Protocol') is set and has the value https, in which case you know that's your protocol
The host comes from req.get('host') as Gopal has indicated
Hopefully you don't need a non-standard port in your URLs, but if you did need to know it you'd ...
How to update maven repository in Eclipse?
...rk. In this situation you have to check what maven binary eclipse is using and run in console /path/to/bin/mvn clean install -U to get updated metadata file.
– Joni
Aug 26 '11 at 9:16
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How to schedule a periodic task in Java?
... great way to do it, because the TimeUnit applies to both the initialDelay and the period. Running every 24 hours will end up being thrown off when DST kicks in, but a TimeUnit of DAYS doesn't let you specify a fine-grained initialDelay. (I think the internal ScheduledExecutorService implementation ...
How to write “Html.BeginForm” in Razor
... <input type="submit" value="Upload" />
</fieldset>
}
and generates as expected:
<form action="/Upload/Upload" enctype="multipart/form-data" method="post">
<fieldset>
Select a file <input type="file" name="file" />
<input type="submi...
onConfigurationChanged not getting called
This morning I came up with a problem trying to handle the onConfigurationChanged event. The problem is that the method, which I override, is not getting called when I change the orientation of the phone. Not getting called at all.
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Flatten list of lists [duplicate]
...prehensions evaluate in the same manner that they unwrap (i.e. add newline and tab for each new loop. So in this case:
flattened = [val for sublist in list_of_lists for val in sublist]
is equivalent to:
flattened = []
for sublist in list_of_lists:
for val in sublist:
flattened.append...
Django class-based view: How do I pass additional parameters to the as_view method?
...<module> import ) should be avoided". Should isn't as strong as must and this is an example but yes definitely *should avoid wildcard imports: python.org/dev/peps/pep-0008/#imports
– user9903
Apr 4 '18 at 15:55
...
C# Ignore certificate errors?
...
Add a certificate validation handler. Returning true will allow ignoring the validation error:
ServicePointManager
.ServerCertificateValidationCallback +=
(sender, cert, chain, sslPolicyErrors) => true;
...
How to include a font .ttf using CSS?
... problem with my code. Because I want to include a global font for my page and I downloaded a .ttf file. And I include it in my main CSS but my font wont change.
...