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Recursively list files in Java
... Files.walk, mostly because there are overloads and it's more convenient.
TESTS: As requested I've provided a performance comparison of many of the answers. Check out the Github project which contains results and a test case.
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Quickly create large file on a Windows system
... file createnew does NOT create sparse files: c:\>fsutil file createnew test.txt 0x100000 File c:\test.txt is created c:\>fsutil sparse queryflag test.txt This file is NOT set as sparse
– ivan_pozdeev
Oct 20 '17 at 6:29
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How to check a not-defined variable in JavaScript
...cript 5, which was released in 2009. You can now safely use === and !== to test for undefined without using typeof as undefined has been read-only for some time.
If you want to know if a member exists independent but don't care what its value is:
if ('membername' in object) // With inheritance
if ...
Viewing contents of a .jar file
...
javap example: javap -classpath test.jar com.yourpackage.HelloWorld
– mPrinC
Sep 22 '17 at 20:28
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Calling pylab.savefig without display in ipython
...n and matplotlib.pylab in this regard. But, when I call pylab.savefig("test.png") the current figure get's displayed in addition to being saved in test.png . When automating the creation of a large set of plot files, this is often undesirable. Or in the situation that an intermediate file for ...
Creating a ZIP Archive in Memory Using System.IO.Compression
..."Bar!");
}
}
using (var fileStream = new FileStream(@"C:\Temp\test.zip", FileMode.Create))
{
memoryStream.Seek(0, SeekOrigin.Begin);
memoryStream.CopyTo(fileStream);
}
}
So we need to call dispose on ZipArchive before we can use it, which means passing 'true' as the ...
Fastest way to serialize and deserialize .NET objects
I'm looking for the fastest way to serialize and deserialize .NET objects. Here is what I have so far:
9 Answers
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Test if object implements interface
What is the simplest way of testing if an object implements a given interface in C#? (Answer to this question
in Java )
1...
Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]
...g.action_mailer.default_url_options = { :host => "dev.yourhost.com" }
test.rb
config.action_mailer.default_url_options = { :host => "test.yourhost.com" }
production.rb
config.action_mailer.default_url_options = { :host => "www.yourhost.com" }
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Fastest way to list all primes below N
...to, rwh_primes, rwh_primes1, and rwh_primes2.
Of the plain Python methods tested, with psyco, for n=1000000,
rwh_primes1 was the fastest tested.
+---------------------+-------+
| Method | ms |
+---------------------+-------+
| rwh_primes1 | 43.0 |
| sieveOfAtkin | 4...