How to discard a value in X#?

[VR]

Hello

when I want to convert a string to an int, I use Int.TryParse which returns true, when the string can be parsed and also has an out param with the string value.

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var str := "123"
if int.TryParse(str, out var strAsInt)
  // do something with the value strAsInt
endif

But how can I handle the situation, when I only want to check, if the string can be parsed as Int,. To use TryParse, I have to define a variable for the out parameter and if I don't use it in the code, I'll get a warning.

In C#, I would use _ to discard the value.

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  static bool StringIsInt(string value) 
  {
     return int.TryParse(value, out _);
  }

Is there a way to do the same in x# (2.13)

Kind regards

Volkmar

[robert]

Volkmar,
Just like C#:

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if Int32.TryParse(str, out var _)

we also allow

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if Int32.TryParse(str, out null)

You can use the discard variable (_) everywhere just like in C#


Robert

[VR]

Thanks for the super fast response