what does this "=>" operator mean in C#?

Question

PlayGamesPlatform.Instance.localUser.Authenticate((bool success) =>

In the code snippet above what does this "=>" mean? I have been unable to find any references for this

Answer 1

Its not always obvious however in this case its part of making a lamda peice of code, so rather than

PlayGamesPlatform.Instance.localUser.Authenticate(something);

where something is declared as

bool something()
{
.. code ..
}

you can do something on the fly with

PlayGamesPlatform.Instance.localUser.Authenticate((bool success) => { .. code .. } );