C#•2y ago

❔ Delegates and events

I'm trying to understand what these are, but I'm struggling a lot. I remember working with events when I was making a discord bot, but that was with discord ruby and discord py. Can someone help me understand this better? A simple analogy would be great since that's how I understand things best ><

10 Replies

Angius•2y ago

Delegates are basically function pointers https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/delegates/ And events allow for easy pub-sub kind of communication https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/events/ Since you wanted analogies... Delegates are methods you can store in a variable Events are like subscribing to some thread on Discord, you get a notification when someone leaves a message

VyraniaOP•2y ago

wait, you can store methods in blobwoah

is news to me

Angius•2y ago

Yep

MODiX•2y ago

Angius#1586

REPL Result: Success

Action<string> ungabunga = Console.WriteLine;

ungabunga("Hello world!");

Action<string> ungabunga = Console.WriteLine;

ungabunga("Hello world!");

Console Output

Hello world!

Hello world!

Compile: 601.120ms | Execution: 31.858ms | React with ❌ to remove this embed.

Angius•2y ago

Alternatively,

MODiX•2y ago

Angius#1586

REPL Result: Success

delegate void unga(string stuff);

unga bunga = Console.WriteLine;

bunga("Hello world!");

delegate void unga(string stuff);

unga bunga = Console.WriteLine;

bunga("Hello world!");

Console Output

Hello world!

Hello world!

Compile: 666.180ms | Execution: 82.434ms | React with ❌ to remove this embed.

Angius•2y ago

And let's not forget anonymous functions either

MODiX•2y ago

Angius#1586

REPL Result: Success

var sumIt = (int a, int b) => a + b;

sumIt(3, 7)

var sumIt = (int a, int b) => a + b;

sumIt(3, 7)

Result: int

Compile: 508.075ms | Execution: 59.199ms | React with ❌ to remove this embed.

VyraniaOP•2y ago

Ahh okay

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ Delegates and events