What is the syntax to create an anonymous instance of IEnumerable in C#?

Question

I have a function which takes an argument of IEnumerable. Let's call it:

Iter(IEnumerable<string> list)

I have a single string that I would like to pass into the function. Is there a way to do it without actually creating some object that implements IEnumerable? It seems like I should be able to use a lambda instead, like :

string thing1 = "Frank";
Iter( () => { yield return thing1 };);

To reiterate, no pun intended, I was wondering if there was a way to use an anonymous function/lambda so I don't have to create a instance of a container.

Answer 1

What about:

Iter(new [] {thing1});

Since your parameter is IEnumerable<string> , you can pass an array or List<string> .

Answer 2

对于一个字符串，还有另一种方式：

Iter(Enumerable.Repeat<string>("thing1", 1);