10 февр. 2013 г. · The context of this is a function that converts a string to a double. This part in particular comes after the function skips white space. I ...

28 мар. 2017 г. · Question marks have different meaning in C# depending on the context. The Null-Conditional Operator (MSDN, What does the question mark in member access mean in ...

27 апр. 2009 г. · This is a ternary operator, it's basically an inline if statement x ? y : z works like if(x) y else z except, instead of statements you have expressions.

22 апр. 2010 г. · It means that the value type in question is a nullable type. Nullable types are instances of the System.Nullable struct.

3 февр. 2011 г. · ? is the first symbol of the ?: conditional operator. a = (b==0) ? 1 : 0; a will have the value 1 if b is equal to 0 , and 0 otherwise.

5 февр. 2015 г. · It's the null conditional operator. It basically means: "Evaluate the first operand; if that's null, stop, with a result of null.

15 янв. 2009 г. · It's the null coalescing operator, and quite like the ternary (immediate-if) operator. See also ?? Operator - MSDN.

30 мая 2017 г. · This is the null conditional operator: Used to test for null before performing a member access (?.) or index (?[) operation.

4 окт. 2021 г. · In C# 8.0, nullable reference types were introduced - this allows you to mark reference types as nullable by appending ? to the type name.

9 сент. 2014 г. · It is a short form of condition, you can write int k = (i > j) ? i : j; this will asign i to k if i > j else it will asign j.