Haskell’s ‘:’ operator
I am currently studying about pattern matching in Haskell from here. The author gives an example of the implementation of “head” function (which returns the first element of a list) as following:
Haskell’s ‘:’ operator
I am currently studying about pattern matching in Haskell from here. The author gives an example of the implementation of “head” function (which returns the first element of a list) as following:
Haskell’s ‘:’ operator
I am currently studying about pattern matching in Haskell from here. The author gives an example of the implementation of “head” function (which returns the first element of a list) as following:
Haskell’s ‘:’ operator
I am currently studying about pattern matching in Haskell from here. The author gives an example of the implementation of “head” function (which returns the first element of a list) as following:
Why can’t the Scala compiler give pattern matching warning for nonsealed classes/traits?
If I use an unsealed trait or abstract class in Scala and then use pattern matching, I wonder, does the compiler not know at compile time for this particular patternmatch what possible implementations of this trait/class are available? So, if it does, could it not give pattern match warnings even though that the trait/abstract class is not sealed because he knows which types could be used, by checking all the possible dependencies/imports?
Measure and locate areas of similar value in an image
I saw this picture online and wanted to see if I could create an algorithm to give ordinary images an effect like this:
http://justinlivi.net/wp-content/uploads/2011/01/Living_In_Digital.jpg
Why try to match for nth negatives, as opposed to matching lesser positives?
My Title clearly indicated my lack of understanding about the core concept for pattern matching – specifically using .HTACCESS to block Bad-Bots from accessing a site, which they do in order to crawl or mirror copy, consequently using up bandwidth.
Pattern Matching on Request Body for Routing an HTTP Request
In an HTTP application, I think about routing requests based not only on the path, but also based on the request body. For an example, think about the following two different body schemas for a PUT request against an /orders/{id} endpoint: