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Error Dropping Database (Can't rmdir '.test\', errno: 17)

Basically, I was taught on how to create a root password using the "mysqladmin -u root -p password" command, this was done all through the windows command editor. Now, the next process was to display the default databases (info. schema, mysql and test) which was achieved by using "SHOW DATABASES;" ...
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How do I pass extra arguments to a Python decorator?

... it needs to return another function which is the actual decorator: def my_decorator(param): def actual_decorator(func): print("Decorating function {}, with parameter {}".format(func.__name__, param)) return function_wrapper(func) # assume we defined a wrapper somewhere ret...
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How to properly import a selfsigned certificate into Java keystore that is available to all Java app

...Windows the easiest way is to use the program portecle. Download and install portecle. First make 100% sure you know which JRE or JDK is being used to run your program. On a 64 bit Windows 7 there could be quite a few JREs. Process Explorer can help you with this or you can use: System.out.println...
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Performance of Arrays vs. Lists

... Very easy to measure... In a small number of tight-loop processing code where I know the length is fixed I use arrays for that extra tiny bit of micro-optimisation; arrays can be marginally faster if you use the indexer / for form - but IIRC believe it dep...
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Android Studio inline compiler showing red errors, but compilation with gradle works fine

... Deleting everything in .idea directory is a bad idea, as it might reset all project settings. Just removing .idea/libraries and .idea/caches finally solved the problem for me after trying all other solutions. – fdermishin May 17 '18 at 15:56 ...
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Can I define a class name on paragraph using Markdown?

...lt;p class='specialParagraph' markdown='1'> **Another paragraph** which allows *Markdown* within it. </p> Possible Solution: (Untested and intended for <blockquote>) I found the following online: Function function _DoBlockQuotes_callback($matches) { ...cut... //add id a...
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How to get the original value of an attribute in Rails

... Before rails 5.1 Appending _was to your attribute will give you the previous value. For rails 5.1+ Copied from Lucas Andrade's answer below: https://stackoverflow.com/a/50973808/9359123 Appending _was is deprecated in rails 5.1, now you should ap...
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How to merge lists into a list of tuples?

... In Python 2: >>> list_a = [1, 2, 3, 4] >>> list_b = [5, 6, 7, 8] >>> zip(list_a, list_b) [(1, 5), (2, 6), (3, 7), (4, 8)] In Python 3: >>> list_a = [1, 2, 3, 4] >>> list_b = [5, 6, 7, 8] >>> list(zi...
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Is there a read-only generic dictionary available in .NET?

...lt;TKey, TValue> { private readonly IDictionary<TKey, TValue> _dictionary; public ReadOnlyDictionary() { _dictionary = new Dictionary<TKey, TValue>(); } public ReadOnlyDictionary(IDictionary<TKey, TValue> dictionary) { _dictionary = dict...
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What's the meaning of interface{}?

...interface that has no methods. Since there is no implements keyword, all types implement at least zero methods, and satisfying an interface is done automatically, all types satisfy the empty interface. That means that if you write a function that takes an interface{} value as a parameter, yo...