If you've ever tried to actually use QuickCheck, Hedgehog or any other property-based testing library to test a stateful app you know it can be seriously difficult! 😖 What if you could generate realistic scenarios for your application, validate...
Are you building a long running app like a WebSocket server? Is its memory usage increasing steadily the longer it runs? You’ve got a memory leak. You’ve stared at your code for hours and everything looks fine. You start to question the...
Are you trying to process a large amount of timestamped data? Need to manipulate events in CSV or log files? Your choice of time library could be slowing you down. Most people new to this problem will do the obvious thing and google for "haskell...
What if you're trying to create a global counter? If you need some global cache and just don't want to plumb an IORef through all of your code? Is there some dirty hack you can use to get a global IORef?