what is an immutable reference?

Question

hi i have found Uri as immutable reference i dont know what it is the exact meaning of immutable reference... can anyone help me?

Answer 1

It's a variable that cannot be changed once set. Very useful when you have multithreaded code since being able to change a variable's value might be a source of many hard to find problems in your code.

If it's immutable, it's usually good.