messenger | A full messenger suite | Chat library

I am using mutable variable in a F# while-do loop, it has been working well so far but I am curious to know if there is a way to make it purely functional and only use immutable data?

The program listens to a Messenger and process its messages. The messages are sent in block and the aim of the program is to read them when they arrive and append all the results until the last message (MessageType.End) is received.
The code below is a simpler version of the real program but captures the main logic. (The only differences are in the treatment of MessageType.Status, MessageType.Failure and the parsing of the message body).

You should be able to run that code in the Interactive, if you have a lower version than 6.0, make the changes I indicated in the comments.

I'm working with Symfony 4.4 and Symfony Messenger

Messenger configuration includes a transport and routing:

I have a variable within my @StateObject that is used to show new message notifications. It is updated periodically from my backend (push noti). The problem is that once this variable updates the badge, it will pull the user out of other tabs unexpectedly (i.e. reloads the entire TabView and takes them to the first tab). I want the notification badge to update without interfering with what the user is doing. I've tried using equatable(), but to no avail. It seems that TabView reloads everything on state object changes. Is there a way to only reload the tab labels? any help will be appreciated.

ContentView.swift:

Let's say you're writing the IOS component of a Flutter plugin in Swift.

You have your MyFlutterPlugin.swift file open in XCode.

So that we know what we're talking about the same thing, it's the file that looks like this:

I'm considerably new to Flutter and I'm to build a Messenger Chap App on Flutter, and I face the issue of "LateInitilization: Field 'searchSnapShot' has not been initialized. Following is the snippet of code that is causing the issue:

Is the objc_msgSend function thread-safe? Check the source code and find that it is written in assembly, but it is not locked at the beginning of the function. Will it not cause confusion when called by multiple threads?

I'm building a WPF/MVVM application that displays some lists below each other. My MainViewModel contains in addition to the lists a textbox, whose text content I want to use as a filter for my lists. However, these lists are not in the MainViewModel, but in sub-controls (UserControl2_*).

If the filter property is in the same ViewModel as the ICollectionView, then filtering works (see CollectionViewFilter in ViewModel2.cs), but I don't understand how to apply a filter to multiple Sub-ViewModels.

Is there an MVVM compliant method to pass the filter through to the sub-controls? Or do I need to pass the collections up so that I can access them from the ViewModel, where the filter property is also set?

If there is any more code you want me to upload or adapt, let me know and I will edit my question.

I recently went through a tutorial on building a menu that I wanted to use for a site I'm putting together. The functionality seems to be working but the issue I'm having is with the 'leftIcon' for the 'My Profile' section. I believe the 'leftIcon' is only meant to take a *.svg file and was wondering how I would go about seeing the imported {avatar} .jpg as the left icon.

I created a messenger using Python Socket, when I use two clients, for example, when one user leaves the chat, the second user can send 1-2 more messages and after that the server stops accepting messages from other users, that is there is a well-known error Broken pipe 32. I understand the terminology of the error, perhaps the error lies on my server in a While True loop (a loop that includes all the actions that users carry out among themselves), because there is a fabulous code in the form: