rust - How Can I return refenrece of RefCell value

Question

This question already has answers here: question from:https://stackoverflow.com/questions/65856322/how-can-i-return-refenrece-of-refcell-value

Answer 1

You should return Ref as RefCell do

    fn get_string(&self) -> Ref<i32>{
        return self.age.borrow_mut()
    }

It should behave more or less like reference except the fact that it implements Drop. It used in RefCell instead of references because it do work to uphold RefCell invariants so while you are using RefCell, you should use it.