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Multi-line commands in GHCi
I am having problem in entering multi-line commands in ghci.
5 Answers
5
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What is a good choice of database for a small .NET application? [closed]
I'm developing a small application with C# in .NET and I want to have a small light weight database which does not use much resources.
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Weird Integer boxing in Java
... in the range
\u0000 to \u007f, or an int or short
number between -128 and 127, then let
r1 and r2 be the results of any two
boxing conversions of p. It is always
the case that r1 == r2.
The discussion goes on, suggesting that although your second line of output is guaranteed, the first ...
how to File.listFiles in alphabetical order?
...irst. If you are using case-insensitive filenames on Windows, the capitals and lowercase names will be mixed together. This is completely as expected. If you want the Windows way on a Unix, supply a comparator to sort.
– Ray Toal
Oct 29 '14 at 4:21
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Android- create JSON Array and JSON Object
How can I create a JSON with this format in Android:
Since the API that I will be passing will parse JsonArray then the object.
Or would it be okay if just to pass a json object? Since I will just have to insert 1 transaction per service call.
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How to convert Set to Array?
... out in an array
let array = [...mySet];
The old fashion way, iterating and pushing to a new array (Sets do have forEach)
let array = [];
mySet.forEach(v => array.push(v));
Previously, using the non-standard, and now deprecated array comprehension syntax:
let array = [v for (v of mySet)];
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Creating an abstract class in Objective-C
...ct class - by making the methods/ selectors call doesNotRecognizeSelector: and therefore raise an exception making the class unusable.
For example:
- (id)someMethod:(SomeObject*)blah
{
[self doesNotRecognizeSelector:_cmd];
return nil;
}
You can also do this for init.
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What is the difference between single and double quotes in SQL?
What is the difference between single quotes and double quotes in SQL?
6 Answers
6
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Replacing column values in a pandas DataFrame
...mn of a dataframe. The column ('female') only contains the values 'female' and 'male'.
11 Answers
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What does the `#` operator mean in Scala?
... such a subclass. In other words, there's no A.B class, but there are a1.B and a2.B classes, and they are different classes, as the error message is telling us above.
If you did not understand that, look up path dependent types.
Now, # makes it possible for you to refer to such nested classes with...