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Large, persistent DataFrame in pandas
...(here's a tedious one: you could transcribe the file row-by-row into a pre-allocated NumPy array or memory-mapped file--np.mmap), but it's one I'll be working on in the near future. Another solution is to read the file in smaller pieces (use iterator=True, chunksize=1000) then concatenate then with ...
How to use underscore.js as a template engine?
...I personally prefer the Mustache style syntax. You can adjust the template token markers to use double curly braces:
_.templateSettings.interpolate = /\{\{(.+?)\}\}/g;
var template = _.template('<li>{{ name }}</li>');
...
.net implementation of bcrypt
...slap a license on it and release it. The URL is:
http://zer7.com/software.php?page=cryptsharp
The Blowfish implementation behind it is a port of Bruce Schneier's public domain C implementation, and succeeds on all the official test vectors.
The BCrypt code I wrote myself based on the spec. I also...
How to display nodejs raw Buffer data as Hex string
... is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead. So now it should be Buffer.from( buf.toString('hex'),'hex');
– flob
Mar 12 '19 at 12:47
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What does the line “#!/bin/sh” mean in a UNIX shell script?
...execute the script.
e.g.
#!/usr/bin/perl <--perl script'
#!/usr/bin/php <-- php script
#!/bin/false <--- do-nothing script, because false returns immediately anyways.
It's implemented as a comment so that anything coming in that line will not "relevant" to the interpreter specified. e...
Exclude folder from search but not from the project list
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FYI for Mac users, it's PhpStorm > Preferences > Appearance & Behavior > Scopes
– Wesley Smith
Dec 13 '16 at 3:30
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When should I create a destructor?
...en would the fourth field initializer run? Never. But the object is still allocated and must be finalized. Heck, you don't even have a guarantee that fields of type double were fully initialized when the dtor runs. There could have been a thread abort halfway through writing the double and now the ...
Move assignment operator and `if (this != &rhs)`
...ll you need to do is a memcpy (hidden under std::copy). You don't want to allocate a new array of the same size and then deallocate the old one of the same size!
Now for your clients who actually want strong exception safety:
template <class C>
C&
strong_assign(C& lhs, C rhs)
{
...
Keystore type: which one to use?
...S11, for PKCS#11 libraries, typically for accessing hardware cryptographic tokens, but the Sun provider implementation also supports NSS stores (from Mozilla) through this.
BKS, using the BouncyCastle provider (commonly used for Android).
Windows-MY/Windows-ROOT, if you want to access the Windows ce...
How to access maven.build.timestamp for resource filtering
...lt;/resources>
</build>
When packaging, Maven will replace any token timestamp in /resources folder, e.g. resources/version.properties :
build.timestamp=${timestamp}
You can then load this properties file in your Application.
...