☛ The symbol in Ruby on rails act the same way as the string but the difference is in their behaviors that are opposite to each other.

☛ The difference remains in the object_id, memory and process time for both of them when used together at one time.

☛ Strings are considered as mutable objects. Whereas, symbols, belongs to the category of immutable.

☛ Strings objects are mutable so that it takes only the assignments to change the object information. Whereas, information of, immutable objects gets overwritten.

☛ String objects are written like

p: “string object jack”.object_id #=>2250 or

p: “string object jack”.to_sym.object_id #=> 2260, and

p: “string object jack”. to_s_object_id #=> 2270

☛ Symbols are used to show the values for the actions like equality or non-equality to test the symbols faster then the string values.