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victory
victory2/18/2023
what is this operation?

discord.MessageCreated += async (s, e) =>


context:
victory
victory2/18/2023
im learning C#
victory
victory2/18/2023
i know what += but why is it used like this in C#?
mtreit
mtreit2/18/2023
That's an event
mtreit
mtreit2/18/2023
You are adding an event handler to the event
mtreit
mtreit2/18/2023
https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/events/
victory
victory2/18/2023
i know what an event is but
victory
victory2/18/2023
i meant
victory
victory2/18/2023
why is += being used for that?
victory
victory2/18/2023
i come from javascript and lua
victory
victory2/18/2023
so += is for adding to strings, numbers, etc.
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2/18/2023
victory
victory2/18/2023
elaborate
victory
victory2/18/2023
is this one of those things like
victory
victory2/18/2023
'it is what it is'
victory
victory2/18/2023
?
mtreit
mtreit2/18/2023
Yes, that syntax goes back to C# 1.0 over 20 years ago
mtreit
mtreit2/18/2023
They wanted events to be a first class thing and to support registering multiple event handlers for a single event
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2/18/2023
victory
victory2/18/2023
oh
victory
victory2/18/2023
okay well thats refreshing
victory
victory2/18/2023
i thought id have to discover some indepth explanation
victory
victory2/18/2023
because i like to know the why to things
victory
victory2/18/2023
but one question
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2/18/2023
victory
victory2/18/2023
what does an event look like for that to be the operation to subscribe to it?
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2/18/2023
victory
victory2/18/2023
right
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2/18/2023
victory
victory2/18/2023
like just calling .on() multiple times
victory
victory2/18/2023
right
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2/18/2023
victory
victory2/18/2023
ohhh
victory
victory2/18/2023
so thats a whole type
victory
victory2/18/2023
i made an event emitter in lua so
victory
victory2/18/2023
thats odd to have a whole type
victory
victory2/18/2023
for events
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2/18/2023
victory
victory2/18/2023
what is a delegate?
victory
victory2/18/2023
im new to C# lol
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2/18/2023
victory
victory2/18/2023
        public event AsyncEventHandler<DiscordClient, ReadyEventArgs> Ready
        {
            add => this._ready.Register(value);
            remove => this._ready.Unregister(value);
        }
victory
victory2/18/2023
so add is called when an event is added?
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2/18/2023
victory
victory2/18/2023
i sorta understand
victory
victory2/18/2023
wait i do
Rotor
Rotor2/18/2023
So C# delegates are composable? Do they feed the output of one into the input of the next or do they all just get run with the outputs discarded?
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2/18/2023
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