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Dictionary returning a default value if the key does not exist [duplicate]

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Best way to initialize (empty) array in PHP

...that may look like functions but aren't treated as such. Even with PHP 5.4, which supports [] as an alternative, there is no difference in overhead because, as far as the compiler/parser is concerned, they are completely synonymous. // Before 5.4, you could only write $array = array( "foo" =&...
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curl: (60) SSL certificate problem: unable to get local issuer certificate

... Bret Weinraub 1,04799 silver badges1717 bronze badges answered Aug 5 '15 at 11:00 DahomzDahomz ...
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What is a lambda expression in C++11?

...le cases the return type of the lambda is deduced for you, e.g.: void func4(std::vector<double>& v) { std::transform(v.begin(), v.end(), v.begin(), [](double d) { return d < 0.00001 ? 0 : d; } ); } however when you start to write more complex lambd...
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Can you call Directory.GetFiles() with multiple filters?

... For .NET 4.0 and later, var files = Directory.EnumerateFiles("C:\\path", "*.*", SearchOption.AllDirectories) .Where(s => s.EndsWith(".mp3") || s.EndsWith(".jpg")); For earlier versions of .NET, var files = Director...
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Determine if a sequence contains all elements of another sequence using Linq [duplicate]

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SAML: Why is the certificate within the Signature?

... Marc-Andre 91411 gold badge1515 silver badges3232 bronze badges answered May 26 '11 at 13:11 KeithKeith ...
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Is it expensive to use try-catch blocks even if an exception is never thrown?

...imizations? – dajood Sep 30 '15 at 14:51 5 ...
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How to change the ROOT application?

... 4 I tried the first method and it works! Bdw - you DON'T need to delete everything. I just deleted the ROOT folder and renamed my war to ROOT....
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Why can outer Java classes access inner class private members?

... Kaleb BraseeKaleb Brasee 47.4k88 gold badges101101 silver badges110110 bronze badges ...