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In Python, how can you load YAML mappings as OrderedDicts?
I'd like to get PyYAML 's loader to load mappings (and ordered mappings) into the Python 2.7+ OrderedDict type, instead of the vanilla dict and the list of pairs it currently uses.
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Is there a range class in C++11 for use with range based for loops?
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The C++ standard library does not have one, but Boost.Range has boost::counting_range, which certainly qualifies. You could also use boost::irange, which is a bit more focused in scope.
C++20's range library will allow you to do this ...
Rails params explained?
Could anyone explain params in Rails controller: where they come from, and what they are referencing?
5 Answers
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Difference between no-cache and must-revalidate
...st-Modified, the agent has nothing to use to validate what it has in cache and must download the whole payload again. So when the RFC says "revalidate" that probably means, re-fetch.
– Luke Puplett
Nov 13 '13 at 11:55
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What is meant by the term “hook” in programming?
...Would someone be able to give me an idea of what this term generally means and perhaps a small example to illustrate the definition?
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Best Practices: working with long, multiline strings in PHP?
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of your multiline string.
$var
EOT;
The difference between Heredoc and Nowdoc is that PHP code embedded in a heredoc gets executed, while PHP code in Nowdoc will be printed out as is.
$var = "foo";
$text = <<<'EOT'
My $var
EOT;
In this case $text will have the value My $var.
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Is there a way for non-root processes to bind to “privileged” ports on Linux?
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Okay, thanks to the people who pointed out the capabilities system and CAP_NET_BIND_SERVICE capability. If you have a recent kernel, it is indeed possible to use this to start a service as non-root but bind low ports. The short answer is that you do:
setcap 'cap_net_bind_service=+ep' /path/...
Java equivalent to Explode and Implode(PHP) [closed]
I am new in Java although had a good experience in PHP, and looking for perfect replacement for explode and implode (available in PHP) functions in Java.
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How to change UIPickerView height
... have shorter PickerViews but setting a smaller frame doesn't seem to work and the frame is locked in Interface Builder.
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Full-screen iframe with a height of 100%
...bars of the iFrame, the parent is made overflow: hidden to hide scrollbars and the iFrame is made to go upto 150% width and height which forces the scroll-bars outside the page and since the body doesn't have scroll-bars one may not expect the iframe to be exceeding the bounds of the page. This hide...