what does the question mark mean at the end of the variable?
TimeSpan? begin = // bla bla bla
The coding language is c#
what does the question mark mean at the end of the variable? TimeSpan? begin
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
what does the question mark mean at the end of the variable?
TimeSpan? begin = // bla bla bla
The coding language is c#
This is Nullable type. It means that value of begin can be null or a timespan
TimeSpan?andNullable<Timespan>is same thing