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Entity Framework 4 Single() vs First() vs FirstOrDefault()
...ime finding a comparison of the different ways to query for a single item, and when to use each.
6 Answers
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Programmatically retrieve memory usage on iPhone
... not interested in those, only to know if it's possible to write some code and get the amount of bytes being used and report it via NSLog.
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Is there an upside down caret character?
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There's ▲: ▲ and ▼: ▼
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Lambda Expression and generic method
...ible [..] with a target type T if T is a functional interface type (§9.8) and the expression is congruent with the function type of [..] T. [..] A lambda expression is congruent with a function type if all of the following are
true:
The function type has no type parameters.
[..]
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What does Serializable mean?
...that if implemented in a class, this class can automatically be serialized and deserialized by different serializers.
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How can I generate random alphanumeric strings?
How can I generate a random 8 character alphanumeric string in C#?
33 Answers
33
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Python argparse: How to insert newline in the help text?
...although it might not matter, since 2.7 is meant to be the last 2.x python and you'll be expected to refactor lots of things for 3.x anyway. I'm actually running 2.6 with argparse installed via easy_install so that documentation may itself be out of date.
– intuited
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HTML input - name vs. id [duplicate]
... <input> tag, what is the difference between the use of the name and id attributes especially that I found that they are sometimes named the same?
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Displaying the build date
... have an app displaying the build number in its title window. That's well and good except it means nothing to most of the users, who want to know if they have the latest build - they tend to refer to it as "last Thursday's" rather than build 1.0.8.4321.
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Get last element of Stream/List in a one-liner
...ch element will be returned.
The implementation works for both sequential and parallel streams. That might be surprising at first glance, and unfortunately the documentation doesn't state it explicitly. However, it is an important feature of streams, and I try to clarify it:
The Javadoc for the m...