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How to hash a string into 8 digits?
...digits using modulo operations or string slicing operations on the integer form of the hash:
>>> s = 'she sells sea shells by the sea shore'
>>> # Use hashlib
>>> import hashlib
>>> int(hashlib.sha1(s).hexdigest(), 16) % (10 ** 8)
58097614L
>>> # Use h...
When to use os.name, sys.platform, or platform.system?
...
Dived a bit into the source code.
The output of sys.platform and os.name are determined at compile time. platform.system() determines the system type at run time.
sys.platform is specified as a compiler define during the build configuration.
os.name checks whether certain os spe...
Example of Named Pipes
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
...
ASP.NET MVC - Should business logic exist in controllers?
...re you want to write a business app with a desktop interface (say, windows forms or WPF) and also a web interface. Solving that problem leads you to the "skinny controller" pattern as is advocated here also. Bottom line: never put business logic in a model or a controller and don't put anything in...
Drawing a line/path on Google Maps
...
if you add more points to form a closed area, then you can draw a polygon filled with Color.RED.
– user538565
Dec 6 '11 at 3:19
...
How to implement my very own URI scheme on Android
...riable has to specify everything after the protocol, ie. it must be of the form "youtube.com/myvideo"
– Casebash
May 13 '10 at 23:14
2
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Securing my REST API with OAuth while still allowing authentication via third party OAuth providers
...nguages.
The pros and cons of OAuth have been debated for a while. But to form your own opinion I suggest reading this definitive guide, written by Eran Hammer-Lahav, one of the people responsible for the OAuth specification.
The only real alternatives to OAuth as far as I see it, are OAuth 2.0 an...
What is the difference between RegExp’s exec() function and String’s match() function?
...atch = re.exec('/a/b/c/d')) {
// match is now the next match, in array form.
}
// No more matches.
String.match does this for you and discards the captured groups.
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What is the difference between String and string in C#?
... you need to refer specifically to the class.
e.g.
string greet = String.Format("Hello {0}!", place);
This is the style that Microsoft tends to use in their examples.
It appears that the guidance in this area may have changed, as StyleCop now enforces the use of the C# specific aliases.
...
Does the JVM prevent tail call optimizations?
...supported, but it would probably require a new bytecode (see John Rose's informal proposal).
There is also more discussion in Sun bug #4726340, where the evaluation (from 2002) ends:
I believe this could be done nonetheless, but it is not a small task.
Currently, there is some work going on i...