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Why are side-effects modeled as monads in Haskell?
...lWorld)
-- input some states of the whole world,
-- modify the whole world because of the side effects,
-- then return the new world.
then f is pure again. We define a parametrized data type type IO a = RealWorld -> (a, RealWorld), so we don't need to type RealWorld so many times, and can just w...
Convert integer into byte array (Java)
what's a fast way to convert an Integer into a Byte Array ?
11 Answers
11
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How to initialize const member variable in a class?
When I am trying to initialize the const member variable t with 100. But it's giving me the following error:
11 Answers
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What's the difference between django OneToOneField and ForeignKey?
What's the difference between Django OneToOneField and ForeignKey ?
9 Answers
9
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How do I encode/decode HTML entities in Ruby?
I am trying to decode some HTML entities, such as '&amp;lt;' becoming '<' .
7 Answers
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A quick and easy way to join array elements with a separator (the opposite of split) in Java [duplic
... directly specifying the elements
String joined1 = String.join(",", "a", "b", "c");
2) using arrays
String[] array = new String[] { "a", "b", "c" };
String joined2 = String.join(",", array);
3) using iterables
List<String> list = Arrays.asList(array);
String joined3 = String.join(",", l...
Can you issue pull requests from the command line on GitHub?
It seems like you have to interact with github.com to initiate a pull request. Is this so?
9 Answers
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Haskell offline documentation?
What are the possibilities, if any, for getting offline docs for Haskell core libraries (and maybe more)?
9 Answers
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Is it possible to make abstract classes in Python?
How can I make a class or method abstract in Python?
12 Answers
12
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What reason is there to use null instead of undefined in JavaScript?
I've been writing JavaScript for quite a long time now, and I have never had a reason to use null . It seems that undefined is always preferable and serves the same purpose programmatically. What are some practical reasons to use null instead of undefined ?
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