DeveloperLoad - DeveloperLoad

Regex find and replace special chars with underscore

I apologize because I know this has been asked so many times. Yet, I cannot find an answer that works for me! It seems most answers seem framed in a particular

display.mode = 'showcase' in shinyApp() call - no code shown

I would like to be able to use display.mode = 'showcase' in an app run with the shinyApp() function call. According to the docs I should be able to pass any arg

Expected a value of type 'Map<dynamic, dynamic>', but got one of type 'Null' : Streambuilder

I'm applying CRUD operation on firebase's realtime database, it works fine until my list is empty. Reference pointer(_passref) is pointing to start of the datab

Make associative array of unique values from column containing arrays

Array ( [0] => Array ( [id] => 21153 [genre] => ["History","Drama", "Thriller"] ) [1] => Array ( [id] =

Handling Firebase Stream Object in Flutter

I'm trying to receive Data from the Firebase Realtime Database in Flutter. I can't get it working - all the solutions I found so far don't work. The connection

Rails test database is not been rollbacked after each tests

I am debugging a rails 5 application. It is supposed to use transactional fixtures. #test_helper.rb self.use_transactional_tests = true But I am tracing the te

How to set class property as class method return type?

I got a class A who has a class method and take it's class property as return type. And a got a class B who inherit from class A. How to set get_instance return