What Are The Rules For Using Self, & Self, Or & Mut Self In A Method

1.	What Are The Rules For Using Self, & Self, Or & Mut Self In A Method Declaration?
Answer» The “self” is USE, when a function needs to consume the VALUE. The “& self” is use, when a function only needs a read-only reference to the value. The “& MUT self” is use, when a function needs to mutate the value without CONSUMING it.

What Are The Rules For Using Self, & Self, Or & Mut Self In A Method Declaration?

Answer»

The “self” is USE, when a function needs to consume the VALUE.
The “& self” is use, when a function only needs a read-only reference to the value.
The “& MUT self” is use, when a function needs to mutate the value without CONSUMING it.