How do I create an in-memory handle in Haskell?

Question

I want something that looks like a file handle but is really backed by an in-memory buffer to use for I/O redirects. How can I do this? JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

I just wrote a library which provides this, called "knob" [hackage]. You can use it to create Handles which reference/modify a ByteString: import Data.ByteString (pack) import Data.Knob import System.IO main = do knob <- newKnob (pack []) h <- newFileHandle knob "test.txt" WriteMode hPutStrLn h "Hello world!" hClose h bytes <- Data.Knob.getContents knob putStrLn ("Wrote bytes: " ++ show bytes)