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What is the preferred/idiomatic way to insert into a map?
...1;
quadratic_func[2] = 4;
quadratic_func[3] = 9;
std::map<int, int> my_func(quadratic_func.begin(), quadratic_func.end());
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Why are Perl 5's function prototypes bad?
... the arguments.
For example, you could define a function like this:
sub mypush(\@@) { ... }
and call it as
mypush @array, 1, 2, 3;
without needing to write the \ to take a reference to the array.
In a nutshell, prototypes let you create your own syntactic sugar. For example the Moose framew...
How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?
... answered Aug 3 '09 at 6:18
myforwikmyforwik
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SET versus SELECT when assigning variables?
...le-Loop, I have seen HUGE performance gains by setting/re-initializing all my variables using one-Select vs. many-Set's. I can also consolidate my Variable-Logic in a Select to all run at once too: Example: SELECT @Int = @Int + 1, @Int = @Int + 1, if @Int started as 0, it then ends as 2. This can ...
Truly understanding the difference between procedural and functional
... memory, whereas functional programmers are thinking, "How can I transform my input data into my output data" - your "program" is the pipeline and set of transforms on the data to take it from the Input to the Output. That's the interesting part IMO, not the "Thou shalt not use variables" bit.
As a...
What is the best way to deal with the NSDateFormatter locale “feechur”?
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@HotLicks yes my bad. I meat NSDateFormatter.
– tbag
Mar 24 '16 at 22:00
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Why hasn't functional programming taken over yet?
...nctional programming (languages), tried out Haskell as well as written one myself. From what I've seen, functional programming has several advantages over the classical imperative style:
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If strings are immutable in .NET, then why does Substring take O(n) time?
...nt data structures that closely match their usage scenarios.
For example, my team writes programs that do on-the-fly analysis of C# and VB code as you type it. Some of those code files are enormous and thus we cannot be doing O(n) string manipulation to extract substrings or insert or delete charac...
What's the difference between Ruby's dup and clone methods?
...ises RuntimeError
The Rubinius implementation for these methods
is often my source for answers to these questions, since it is quite clear, and a fairly compliant Ruby implementation.
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What is the explicit promise construction antipattern and how do I avoid it?
...is a common anti-pattern people who are new to promises make, I've made it myself when I first used promises. The problem with the above code is that is fails to utilize the fact that promises chain.
Promises can chain with .then and you can return promises directly. Your code in getStuffDone can b...