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Postgresql - unable to drop database because of some auto connections to DB
...stgresql restart
Then try dropping the database:
postgres=# drop database test_database;
This will do the trick.
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Does Go have “if x in” construct similar to Python?
...eds at
most 20 comparisons, even in the worst case.
files := []string{"Test.conf", "util.go", "Makefile", "misc.go", "main.go"}
target := "Makefile"
sort.Strings(files)
i := sort.Search(len(files),
func(i int) bool { return files[i] >= target })
if i < len(files) && files[i] ==...
Python != operation vs “is not”
...
== is an equality test. It checks whether the right hand side and the left hand side are equal objects (according to their __eq__ or __cmp__ methods.)
is is an identity test. It checks whether the right hand side and the left hand side are th...
How do I run Asynchronous callbacks in Playground
...ate: NSDate())
usleep(10)
}
This pattern has often been used in Unit Tests which need to test async callbacks, for example: Pattern for unit testing async queue that calls main queue on completion
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Link and execute external JavaScript file hosted on GitHub
...the linked reference of a local JavaScript file to a GitHub raw version my test file stops working. The error is:
15 Answe...
Visual Studio 64 bit?
...ke-advantage-of-64-bit
Secondly, from a cost perspective, probably the shortest path to
porting Visual Studio to 64 bit is to port most of it to managed code
incrementally and then port the rest. The cost of a full port of that
much native code is going to be quite high and of course all known
exte...
SSH to Vagrant box in Windows?
... @Alex It's definitely patched into recent Vagrant versions. I tested it and documented it here: robertpate.net/blog/2013/…
– robertpateii
Nov 26 '13 at 17:26
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Google Maps v2 - set both my location and zoom in
...I link to in the answer contains that code. It runs perfectly fine. I just tested it now on a Nexus 9 running Android 7.0, and a Nexus 6P running Android 6.0.1. It has run perfectly fine for a couple of years. It doesn't do them in one shot, and I agree that Rob's is a superior answer, as I noted in...
C++ templates that accept only certain types
...pe(std::declval<const T&>().end())>
static std::true_type test(int);
template<typename...>
static std::false_type test(...);
};
template<typename T>
struct has_begin_end : decltype(has_begin_end_impl::test<T>(0)) {};
template<typename T>
class obser...
Python Script execute commands in Terminal
...an be achieved with the subprocess module:
for example:
import subprocess
test = subprocess.Popen(["ping","-W","2","-c", "1", "192.168.1.70"], stdout=subprocess.PIPE)
output = test.communicate()[0]
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