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dev_junior45
·
Proper use of yield return in C#: when and why?
Hello everyone! I recently started learning C# and came across the `yield return` keyword. I read the documentation, but I still don't fully understand in which situations it should be used and in which it shouldn't.
For example, I have a method that returns a collection of Fibonacci numbers:
```csharp
public static IEnumerable GetFibonacci(int count)
{
var result = new List();
int a = 0, b = 1;
for (int i = 0; i < count; i++)
{
result.Add(a);
int temp = a;
a = b;
b = temp + b;
}
return result;
}
```
But I've seen some people write it like this:
```csharp
public static IEnumerable GetFibonacci(int count)
{
int a = 0, b = 1;
for (int i = 0; i < count; i++)
{
yield return a;
int temp = a;
a =
```
