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FirstOrDefault: Default value other than null
As I understand it, in Linq the method FirstOrDefault() can return a Default value of something other than null. What I haven't worked out is what kind of things other than null can be returned by this (and similar) method when there are no items in the query result. Is there any particular wa...
What is the difference between 'E', 'T', and '?' for Java generics?
I come across Java code like this:
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Deep cloning objects
I want to do something like:
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C++11 emplace_back on vector?
Consider the following program:
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Why should I care that Java doesn't have reified generics?
This came up as a question I asked in an interview recently as something the candidate wished to see added to the Java language. It's commonly-identified as a pain that Java doesn't have reified generics but, when pushed, the candidate couldn't actually tell me the sort of things that he could hav...
How to do Base64 encoding in node.js?
Does node.js have built-in base64 encoding yet?
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Difference between `const shared_ptr` and `shared_ptr`?
I'm writing an accessor method for a shared pointer in C++ that goes something like this:
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How to implement a rule engine?
I have a db table that stores the following:
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How to pass anonymous types as parameters?
How can I pass anonymous types as parameters to other functions? Consider this example:
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Functional style of Java 8's Optional.ifPresent and if-not-Present?
In Java 8, I want to do something to an Optional object if it is present, and do another thing if it is not present.
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