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What is a higher kinded type in Scala?
...ith some disambiguation. I like to use the analogy to the value level to explain this, as people tend to be more familiar with it.
A type constructor is a type that you can apply to type arguments to "construct" a type.
A value constructor is a value that you can apply to value arguments to "const...
How to convert a string to number in TypeScript?
...
Exactly like in JavaScript, you can use the parseInt or parseFloat functions, or simply use the unary + operator:
var x = "32";
var y: number = +x;
All of the mentioned techniques will have correct typing and will correctly...
What does enctype='multipart/form-data' mean?
...n some way.
HTML forms provide three methods of encoding.
application/x-www-form-urlencoded (the default)
multipart/form-data
text/plain
Work was being done on adding application/json, but that has been abandoned.
(Other encodings are possible with HTTP requests generated using other means t...
EditorFor() and html properties
...
In MVC3, you can set width as follows:
@Html.TextBoxFor(c => c.PropertyName, new { style = "width: 500px;" })
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Getting mouse position in c#
...[StructLayout(LayoutKind.Sequential)]
public struct POINT
{
public int X;
public int Y;
public static implicit operator Point(POINT point)
{
return new Point(point.X, point.Y);
}
}
/// <summary>
/// Retrieves the cursor's position, in screen coordinates.
/// </...
Java 8: Where is TriFunction (and kin) in java.util.function? Or what is the alternative?
...uctive one destroys something, but not in the way you may think now.
For example, the function
Function<Integer,Integer> f = (x,y) -> x + y
is a constructive one.
As you need to construct something. In the example
you constructed the tuple (x,y). Constructive functions have the prob...
What Automatic Resource Management alternatives exist for Scala?
I have seen many examples of ARM (automatic resource management) on the web for Scala. It seems to be a rite-of-passage to write one, though most look pretty much like one another. I did see a pretty cool example using continuations, though.
...
How to declare an ArrayList with values? [duplicate]
...
In Java 9+ you can do:
var x = List.of("xyz", "abc");
// 'var' works only for local variables
Java 8 using Stream:
Stream.of("xyz", "abc").collect(Collectors.toList());
And of course, you can create a new object using the constructor that acce...
What are best practices for validating email addresses on iOS 2.0
...
The answer to Using a regular expression to validate an email address explains in great detail that the grammar specified in RFC 5322 is too complicated for primitive regular expressions.
I recommend a real parser approach like MKEmailAddress.
As quick r...
Python data structure sort list alphabetically
...can sort it like this:
In [1]: lst = ['Stem', 'constitute', 'Sedge', 'Eflux', 'Whim', 'Intrigue']
In [2]: sorted(lst)
Out[2]: ['Eflux', 'Intrigue', 'Sedge', 'Stem', 'Whim', 'constitute']
As you can see, words that start with an uppercase letter get preference over those starting with a lowercase...