My advice is to always use const and only use let when you know you’ll need to reassign a value to that variable. If we know a value cannot be reassigned, it’s one less source for bugs. A variable is a value assigned to an identifier, so you can reference and use it later in the program.

Net development may be defined as the application development using .net programming language. Under .net development, the libraries and the methods of .net are used for application development. It may also be considered as the approach of application development using the .net framework that consists of various functionalities that are used to serve the purpose of software development.