I am looking at somebody code. I found:
XOffset = !MirroredMovement ? trans.x * MoveRate : -trans.x * MoveRate;
He use '?' character, why ? What does it mean ? I did not understand.
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3Just go to the documentation: https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/operators/conditional-operator – Pau C Aug 04 '17 at 09:10
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1ternary operator: https://en.wikipedia.org/wiki/%3F: – Marcin Orlowski Aug 04 '17 at 09:10
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Explanation here: https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/operators/conditional-operator – CCamilo Aug 04 '17 at 09:11
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https://stackoverflow.com/questions/6957214/question-mark-and-colon-mean-in-statement-what-does-it-mean – Amr Elgarhy Aug 04 '17 at 09:11
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https://github.com/ranguera/Kinect-DAT/blob/master/KinectScripts/AvatarController.cs – Emanuel Pirovano Aug 04 '17 at 09:12
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@EmanuelPirovano what does this link describes? It seams that a code page from a project – Amr Elgarhy Aug 04 '17 at 09:14
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Is the source code of this question and it has a lots of /* comments */ , this is because i link it – Emanuel Pirovano Aug 04 '17 at 09:25
2 Answers
2
? is not the operator, the combination of ? and : is the operator, called 'ternary operator'.
The ternary operator is an operator that takes three arguments. The first argument is a comparison argument, the second is the result upon a true comparison, and the third is the result upon a false comparison. If it helps you can think of the operator as shortened way of writing an if-else statement.
Rutvik Bhatt
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2
That's the Ternary Operator.
condition ? value1 : value2
Its short for:
if (condition)
{
return value1;
}
else
{
return value2;
}
In this example you could write this:
XOffset = !MirroredMovement ? trans.x * MoveRate : -trans.x * MoveRate;
like that:
if (!MirroredMovement)
{
XOffset = trans.x * MoveRate;
}
else
{
XOffset = -trans.x * MoveRate;
}
Looki
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