Question

I want to know which is the preferred way to declare a string in C#:

string strEmpty = String.Empty;

   or

string strNull = null;

Which practice is better or what is the difference between these statements.

Answer 1

the first answer makes the value of the string an actual empty string. Assigning it to null makes the pointer point to nothing. This means that if you tried to do strEmpty.Function(), it wouldn’t work in the second case.

The first takes more memory initially, but is more clear.

The correct answer depends on what you would do next. If you are just going to reassign the string, I would make it null. If you intend to do stuff to the string (execute functions, append, etc), I would make it string.empty.