Golang App : This is a basic app to learn the Golang language

Value Types:
    - int, float, string, bool, struct
    - if we pass any of these value types in to a function, we might have to use pointers to change the value of these
    - refer struct-pointers for reference


Reference Types:
    - slices, maps, channels, pointers, functions
    - if we pass any of the reference types to a function, we can easily change the value without pointers
    - means, these types will always refer to the same memory address everytime

Structs and Map:
    - both are similar to Objects in Javascript/ Dictionary in Python / C#
    - Map: 
        - Both keys and values are statically typed, ie.., all keys should be of same type, same with values
        - Use to represent a collection of related properties
        - We have to use square braces (map[key]) to access value of a map
        - keys are indexed, we can iterate over them
        - Don't need to know all the keys at compile time

    - Struct:
        - In Struct, keys and values can be dynamic types
        - Use to represent a `thing` with defferent properties
        - We can use . also to access the values of a struct. (struct.key)
        - keys are not indexed
        - Need to know all the keys at compile time

interfaces:
    - any type which has the same properties of an interface in a program, then that type will automatically be of the same type of that interface as well
    - ie.., any type which ualifies the above said criteria can be referred to as ther interface type