shouter

This is due to groovy closures and when the code they contain gets evaluated. http://blog.freeside.co/2013/03/29/groovy-gotcha-for-loops-and-closure-scope/

When the closures are run the value that is bound to the variable i is the value it had on the final iteration of the loop rather than the iteration where the closure was created. The closures' scopes have references to i and by the time any of the closures are executed i is 5.

Variables local to the loop body do not behave like this, obviously because each closure scope contains a reference to a different variable

This is why your stage name is ok but your value is not.

What’s the solution? Should we always use .each rather than a for loop? Well, I kind of like for loops in many cases and there can be memory utilization differences (don’t take that to mean loops are "better" or "more efficient").

If you simply alias the loop variable and refer to that alias in the closure body all will be well

Fixed by adding Symfony\Component\Cache\Simple\FilesystemCache: in the services.yaml.

It’s a weird thing, but you can’t easly bind knockout event to prototype functions (And public Test() is this function).

Try changing test() into :

First you need to provide message2 object first in ViewModel2. Then you can pass the parent object to child to get reference to it.