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Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?
...ervlets, one can access the response body via response.getOutputStream() or response.getWriter() . Should one call .close() on this OutputStream after it has been written to?
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What are “named tuples” in Python?
...tuple instances can be referenced using object-like variable dereferencing or the standard tuple syntax. They can be used similarly to struct or other common record types, except that they are immutable. They were added in Python 2.6 and Python 3.0, although there is a recipe for implementation in...
C++ map access discards qualifiers (const)
The following code says that passing the map as const into the operator[] method discards qualifiers:
5 Answers
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How to have Android Service communicate with Activity
...ill access your service. If this is not the case you have to use option 1. or 2.
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How to create an infinite loop in Windows batch file?
...out using good(?) old goto?
:loop
echo Ooops
goto loop
See also this for a more useful example.
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CMake: How to build external projects and include their targets
I have a Project A that exports a static library as a target:
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Clean ways to write multiple 'for' loops
For an array with multiple dimensions, we usually need to write a for loop for each of its dimensions. For example:
16 An...
How to dynamically change a web page's title?
...uld totally defeat the purpose of SEO. Most
crawlers aren't going to support javascript in the first place, so
they will take whatever is in the element as the page title.
If you want this to be compatible with most of the important crawlers,
you're going to need to actually change the t...
How to reference constants in EL?
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EL 3.0 or newer
If you're already on Java EE 7 / EL 3.0, then the @page import will also import class constants in EL scope.
<%@ page import="com.example.YourConstants" %>
This will under the covers be imported via ImportH...
Elements order in a “for (… in …)” loop
Does the "for…in" loop in Javascript loop through the hashtables/elements in the order they are declared? Is there a browser which doesn't do it in order?
The object I wish to use will be declared once and will never be modified.
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