Is Mapping a good practice or bad in Salesforce?

Hi Tanu,

It is really helpful when you are using Maps in your apex as it decreases the number of lines of code and also when you are using Maps which is collection of Set and List replaces the functioning of them in your code.

Using Map inside a map is a good practice with the comments in your code which make your code more readable to yourself and also to others when the code is being reviewed in future.

Hope that clears your query.

Thanks.