C# - ?: operator Or Ternary Conditional Operator

(MSDN)

The conditional operator ?:, also known as the ternary conditional operator, evaluates a Boolean expression and returns the result of one of the two expressions, depending on whether the Boolean expression evaluates to true or false. Beginning with C# 7.2, the conditional ref expression returns the reference to the result of one of the two expressions.

condition ? consequent : alternative

double sinc(double x) => x != 0.0 ? Math.Sin(x) / x : 1;

Console.WriteLine(sinc(0.1));

Console.WriteLine(sinc(0.0));

// Output:

// 0.998334166468282

// 1

Example

C#

int value = 15;

value = value % 26 == 0 ? 1 : value;

Example

VB

Dim value As Integer = 15

value = If((value Mod 26) = 0, 1, value)