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What is a magic number, and why is it bad? [closed]

... @Kirill: If you expect the definition of "Hundred Percents" to change, then yes. A better approach would be to have the variable from what it is to what it represents, i.e., public static final MAX_DOWNLOAD_PERCENTAGE = 100. Although even that wouldn't make sense, because "100 percent" is very w...
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What are the differences between the threading and multiprocessing modules?

...s constantly using 100% CPU, and adding more threads just makes it slower, then you're running into the GIL problem, so you need to switch to processes. All you have to do is change that first line: with concurrent.futures.ProcessPoolExecutor(max_workers=4) as executor: The only real caveat is th...
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How to compare arrays in JavaScript?

...You may say "But it is much faster to compare strings - no loops..." well, then you should note there ARE loops. First recursive loop that converts Array to string and second, that compares two strings. So this method is faster than use of string. I believe that larger amounts of data should be alwa...
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Re-entrant locks in C#

...n object graph and you can acquire locks on the root of that object graph, then do so. This means you have one lock on that root object and therefore don't have to worry so much about the sequence in which you acquire/release locks. (One further note, your example isn't technically recursive. For ...
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How to avoid having class data shared among instances?

...not affect the others. So if you did something like x.list = [], you could then change it and not affect any others. The problem you face is that x.list and y.list are the same list, so when you call append on one, it affects the other. – Matt Moriarity Nov 5 '...
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Link latest file on Bitbucket Git repository

...reter/ReadMe.txt Another idea is to create a wiki page for your project, then use the wiki's functionality to link to the latest version of a file with this syntax: <<file path/to/file [revision] [linenumber]>> Just omit the revision and line number parameters, they are optional. T...
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How do I determine whether my calculation of pi is accurate?

...much harder to implement, but it is a lot faster than the AGM algorithms. Then we verify the binary digits using the BBP formulas for digit extraction. This formula allows you to compute arbitrary binary digits without computing all the digits before it. So it is used to verify the last few comp...
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How do you create a dictionary in Java? [closed]

...String, String> dictionary = new HashMap<String, String>(); you then use it as a: dictionary.put("key", "value"); String value = dictionary.get("key"); Works but gives an error you need to keep the constructor class same as the declaration class. I know it inherits from the parent c...
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laravel throwing MethodNotAllowedHttpException

...et('validate', function () { return View::make('members/login'); }); Then your controller method could just be public function validateCredentials() { $email = Input::post('email'); $password = Input::post('password'); return "Email: " . $email . " and Password: " . $password; } ...
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Regular expression for exact match of a string

...h regular expression. For example I have two inputs "123456" and "1234567" then the result should be not match (false). And when I have entered "123456" and "123456" then the result should be match (true). ...