I sometimes get the exception “SocketException: Connection reset by peer (OS Error: Connection reset by peer)” in my dart server which uses websockets. This leads to the server process terminating. How do I catch the exception to continue the process?

the goal is to run a js script in dart(conditions2),
in the js script i need to perform some logic and get the data(current) out,
conditions2 should update current and then to access the updated current in save.
how do i do that?

the goal is for dart to run a js script.
the issue is that i am not able to insert parameters for the js script to recognize in a dynamic manner.
i am able to add parameters if i hard code the data (see code).
for some reason the function is being treated as a string i think,
i added the outputs aswell::

Tje program should ask to save your progress and then create a dile in my file mana and save progress so that i ca resume from were i stopped after i exit the program

im having issues encoding key value pairs inside of UrlFormatter.encode_params.
when i so it outside it works.
code1:

I have a list that I want to start out with one element. The element is not static, but accessible in the constructor. I have written it like this:

Sometimes I see this
List list = [];

I’m mystified why the following Dart code generates a runtime error:

Running pub upgrade…
Error: Error when reading ‘pub’: The system cannot find the file specified.

i am new to dart I would like to find out how to write a code in dart for An instance of a class that is initialized with data from a file