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What is the use of the ArraySegment class?
...egment<T> has become a lot more useful in .NET 4.5+ and .NET Core as it now implements:
IList<T>
ICollection<T>
IEnumerable<T>
IEnumerable
IReadOnlyList<T>
IReadOnlyCollection<T>
as opposed to the .NET 4 version which implemented no interfaces whatsoever.
The...
Are there disadvantages to using a generic varchar(255) for all text-based fields?
...elds will ever come close to having 255 characters. (If you're wondering, it's this way because Ruby on Rails migrations map String fields to VARCHAR(255) by default and I never bothered to override it).
...
How can I break up this long line in Python?
...ow would you go about formatting a long line such as this? I'd like to get it to no more than 80 characters wide:
5 Answers...
Haskell Type vs Data Constructor
...alue is expected.
Data constructors
To make things simple, we can start with an example of a type that represents a colour.
data Colour = Red | Green | Blue
Here, we have three data constructors. Colour is a type, and Green is a constructor that contains a value of type Colour. Similarly, Red a...
How to unset a JavaScript variable?
...al variable in JavaScript (actually a window property, but I don't think it matters) which was already populated by a previous script but I don't want another script that will run later to see its value or that it was even defined.
...
Is it worth using Python's re.compile?
Is there any benefit in using compile for regular expressions in Python?
26 Answers
26...
How to properly override clone method?
...h Bloch on Design - Copy Constructor versus Cloning
If you've read the item about cloning in my book, especially if you read between the lines, you will know that I think clone is deeply broken. [...] It's a shame that Cloneable is broken, but it happens.
You may read more discussion on the to...
What does !important mean in CSS?
...
It means, essentially, what it says; that 'this is important, ignore subsequent rules, and any usual specificity issues, apply this rule!'
In normal use a rule defined in an external stylesheet is overruled by a style define...
What is Node.js' Connect, Express and “middleware”?
Despite knowing JavaScript quite well, I'm confused what exactly these three projects in Node.js ecosystem do. Is it something like Rails' Rack? Can someone please explain?
...
Splitting a string into chunks of a certain size
...
static IEnumerable<string> Split(string str, int chunkSize)
{
return Enumerable.Range(0, str.Length / chunkSize)
.Select(i => str.Substring(i * chunkSize, chunkSize));
}
Please note that additional code might be required to gracefully han...