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Most efficient way to increment a Map value in Java
...d suggested by jrudolph
the "MutableInt" method suggested by phax.myopenid.com
Method
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created five classes that were identical except for the differences shown below. Each class had to perform an operation typical of the scenario I presented: opening a 10MB file and reading...
Android, How can I Convert String to Date?
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Python way of printing: with 'format' or percent form? [duplicate]
... more flexible and handles tuples and
dictionaries naturally, it is recommended for new code. However, there
are no current plans to deprecate printf-style formatting.
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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
... saw for DT above. Type example(copy) for more examples using tracemem and comparison to data.frame.
Btw, if you tracemem(DT) then DT[2,b:=600] you'll see one copy reported. That is a copy of the first 10 rows that the print method does. When wrapped with invisible() or when called within a functio...
Return all enumerables with yield return at once; without looping through
... Wes Dyer has an interesting article mentioning this pattern. blogs.msdn.com/wesdyer/archive/2007/03/23/…
– JohannesH
Aug 26 '09 at 4:06
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Query EC2 tags from within instance
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You can use a combination of the AWS metadata tool (to retrieve your instance ID) and the new Tag API to retrieve the tags for the current instance.
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Passing just a type as a parameter in C#
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There are two common approaches. First, you can pass System.Type
object GetColumnValue(string columnName, Type type)
{
// Here, you can check specific types, as needed:
if (type == typeof(int)) { // ...
This would be called li...
How do I read configuration settings from Symfony2 config.yml?
...e it in a parameters entry:
parameters:
contact_email: somebody@gmail.com
You should find the call you are making within your controller now works.
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