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Installing libv8 gem on OS X 10.9+
...ibv8 in your Gemfile (or) a bundle update should suffice. Hope this helps.
From the libv8 README
Bring your own V8
Because libv8 is the interface for the V8 engine used by therubyracer, you may need to use libv8, even if you have V8 installed already. If you wish to use your own V8 installation, rat...
How to get the current time in YYYY-MM-DD HH:MI:Sec.Millisecond format in Java?
... be hiding data.
If you want to eliminate any microseconds or nanoseconds from your data, truncate.
Instant instant2 = instant.truncatedTo( ChronoUnit.MILLIS ) ;
The java.time classes use ISO 8601 format by default when parsing/generating strings. A Z at the end is short for Zulu, and means UTC....
Most efficient way to cast List to List
... at some far distant, hard-to-associate point in code when a value is read from the collection. If you heed compiler warnings about type safety, you will avoid these type errors at runtime.
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Convert java.util.Date to String
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// Print the result!
System.out.println("Today is: " + todayAsString);
From http://www.kodejava.org/examples/86.html
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How to add test coverage to a private constructor?
...oblems for Sonar's code coverage tool (when I do this the class disappears from the code coverage reports of Sonar).
– Adam Parkin
Mar 22 '13 at 20:14
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Check if a given key already exists in a dictionary
...for any key you can either use dict.setdefault() repeatedly or defaultdict from the collections module, like so:
from collections import defaultdict
d = defaultdict(int)
for i in range(100):
d[i % 10] += 1
but in general, the in keyword is the best way to do it.
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How to inspect the return value of a function in GDB?
..., fun () at test.c:2
2 return 42;
(gdb) finish
Run till exit from #0 fun () at test.c:2
main () at test.c:7
7 return 0;
Value returned is $1 = 42
(gdb)
The finish command can be abbreviated as fin. Do NOT use the f, which is abbreviation of frame command!
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Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?
...ector, not column vector. If A is a matrix, each k will be a column vector from that matrix. So, transpose(A') or vectorize (A(:)') if needed.
– yuk
Dec 8 '11 at 17:36
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What does it mean when an HTTP request returns status code 0?
...e:
https://fetch.spec.whatwg.org/#concept-network-error
As you can see from the spec (fetch or XmlHttpRequest) this code could be the result of an error that happened even before the server is contacted.
Some of the common situations that produce this status code are reflected in the other answ...
When to use thread pool in C#? [closed]
... need to make your IO related tasks concurrently such as downloading stuff from remote servers or disk access, but need to do this say once every few minutes, then make your own threads and kill them once you're finished.
Edit: About some considerations, I use thread pools for database access, phys...