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#ifdef in C#

...ibute! Update: 3.5 years later You can use #if like this (example copied from MSDN): // preprocessor_if.cs #define DEBUG #define VC_V7 using System; public class MyClass { static void Main() { #if (DEBUG && !VC_V7) Console.WriteLine("DEBUG is defined"); #elif (!DEBUG &am...
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Regular Expression for alphanumeric and underscores

...valent in most regex flavors. \w includes letters with diacritics, letters from other scripts, etc. – Jan Goyvaerts Dec 3 '08 at 7:45 4 ...
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Service Reference Error: Failed to generate code for the service reference

... Have to uncheck the Reuse types in all referenced assemblies from Configure service reference option Check this for details share | improve this answer | follo...
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Why do I need 'b' to encode a string with Base64?

...s change of radix on the entire number, or (if the radix you're converting from is a power of 2 less than 64) in chunks from right to left. In base64 encoding, the translation is done from left to right; those first 64 characters are why it is called base64 encoding. The 65th '=' symbol is used for...
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Extracting an attribute value with beautifulsoup

... If you want to retrieve multiple values of attributes from the source above, you can use findAll and a list comprehension to get everything you need: import urllib f = urllib.urlopen("http://58.68.130.147") s = f.read() f.close() from BeautifulSoup import BeautifulStoneSoup so...
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Random String Generator Returning Same String [duplicate]

...class are NOT documented as being thread-safe, so if this method is called from multiple threads at the same time (highly likely if you're making a web app, for example) then the behaviour of this code will be undefined. You either need to use a lock on the random or make it per-thread. ...
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design a stack such that getMinimum( ) should be O(1)

... has better space in general. We still have the min stack, but we only pop from it when the value we pop from the main stack is equal to the one on the min stack. We only push to the min stack when the value being pushed onto the main stack is less than or equal to the current min value. This allows...
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Find object by id in an array of JavaScript objects

... Use the find() method: myArray.find(x => x.id === '45').foo; From MDN: The find() method returns the first value in the array, if an element in the array satisfies the provided testing function. Otherwise undefined is returned. If you want to find its index instead, use findInd...
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Prevent direct access to a php include file

...called ".htaccess" in the directory you don't want to be accessible: Deny from all If you actually have full control of the server (more common these days even for little apps than when I first wrote this answer), the best approach is to stick the files you want to protect outside of the director...
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REST API Authentication

... I want to build an API for the application to facilitate interaction with from any platform (Web App, Mobile App). What I'm not understanding is that when using the REST API, how do we authenticate the user. ...