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How do I get the current Date/time in DD/MM/YYYY HH:MM format?
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Converting to string then parsing is not ideal.
– Chuck Batson
Jun 10 '17 at 0:31
1
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How to match a String against string literals in Rust?
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as_slice is deprecated, you should now use the trait std::convert::AsRef instead:
match stringthing.as_ref() {
"a" => println!("0"),
"b" => println!("1"),
"c" => println!("2"),
_ => println!("something else!"),
}
Note that you also have to explicitly h...
When should I use C++ private inheritance?
...This is NOT a complete answer. Read other answers like here (conceptually) and here (both theoretic and practic) if you are interested in the question. This is just a fancy trick that can be achieved with private inheritance. While it is fancy it is not the answer to the question.
Besides the basic...
What is the difference between Θ(n) and O(n)?
...I see Θ(n) with the strange Θ symbol with something in the middle of it, and sometimes just O(n). Is it just laziness of typing because nobody knows how to type this symbol, or does it mean something different?
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In Python, how can you load YAML mappings as OrderedDicts?
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The yaml module allow you to specify custom 'representers' to convert Python objects to text and 'constructors' to reverse the process.
_mapping_tag = yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG
def dict_representer(dumper, data):
return dumper.represent_dict(data.iteritems())
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How do I close a connection early?
...ot of useful things in the context of a query, such as saving the session, converting the downloaded video, handling all kinds of statistics, etc.
fastcgi_finish_request() can invoke executing shutdown function.
Note: fastcgi_finish_request() has a quirk where calls to flush, print, or echo will...
Java 8 NullPointerException in Collectors.toMap
...ws a NullPointerException if one of the values is 'null'. I don't understand this behaviour, maps can contain null pointers as value without any problems. Is there a good reason why values cannot be null for Collectors.toMap ?
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Java's Interface and Haskell's type class: differences and similarities?
...werful and flexible than interfaces. How would you define an interface for converting a string to some value or instance of the implementing type? It's certainly not impossible, but the result would not be intuitive or elegant. Have you ever wished it was possible to implement an interface for a typ...
Is optimisation level -O3 dangerous in g++?
...mpiling with an optimisation level of -O3 in g++ is somehow 'dangerous', and should be avoided in general unless proven to be necessary.
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What strategies and tools are useful for finding memory leaks in .NET?
...ul about the number of objects that we inflated in memory. In the end, we converted all of our data objects over to an "inflate on-demand" (just before a field is requested) in order to reduce memory overhead and increase performance.
EDIT: Here's a further explanation of what I mean by "inflate o...