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Remove Fragment Page from ViewPager in Android

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How do you reverse a string in place in C or C++?

...e less efficiently. You can see on the Godbolt compiler explorer how much more complicated the asm loop body is when xor-swap is compiled for x86-64 with gcc -O3.) Ok, fine, let's fix the UTF-8 chars... (This is XOR-swap thing. Take care to note that you must avoid swapping with self, because i...
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Ruby's ||= (or equals) in JavaScript?

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How to encrypt/decrypt data in php?

...r encryption. The storage requirements depend on the cipher and mode used; more about this later. The Password field will be hashed using a one-way password hash, Encryption Cipher and mode Choosing the best encryption cipher and mode is beyond the scope of this answer, but the final choice affe...
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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection

... I think these are the questions you need to answer before trying anything more advanced. Baby steps! – karlphillip Jan 25 '12 at 12:40 1 ...
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Php multiple delimiters in explode

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find() with nil when there are no records

...method. In that case the only extra line you need is the rescue line. Much more elegant and easier to handle than checking for nil with an if statement. – morgler Aug 1 '17 at 7:30 ...
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How to load JAR files dynamically at Runtime?

... Using this approach you need to make sure you won't call this load method more than once for each class. Since you're creating a new class loader for every load operation, it can not know whether the class was already loaded previously. This can have bad consequences. For example singletons not wor...
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How to remove a file from the index in git?

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Find row where values for column is maximal in a pandas DataFrame

...argmax used to exist and perform the same function (though appeared to run more slowly than idxmax). argmax function returned the integer position within the index of the row location of the maximum element. pandas moved to using row labels instead of integer indices. Positional integer indices us...