Docs: Last code sample is incorrect

[elninoisback]

Please check the last code sample given here. It should contain an explicitly declared variable. It seems like a classic copy-paste error.

string numberAsString = "1640";
// Missing the following line
// int number;
if (Int32.TryParse(numberAsString, out var number))
Console.WriteLine($"Converted '{numberAsString}' to {number}");
else
Console.WriteLine($"Unable to convert '{numberAsString}'");
// The example displays the following output:
// Converted '1640' to 1640

---

Document Details

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• ID: 8f6c8480-77a7-7505-5224-0efe15b9b755
• Version Independent ID: 993250d1-108c-ab1a-886e-ca1bfa9104c7
• Content: out parameter modifier - C# Reference
• Content Source: docs/csharp/language-reference/keywords/out-parameter-modifier.md
• Product: dotnet-csharp
• Technology: csharp-language-reference
• GitHub Login: @BillWagner
• Microsoft Alias: wiwagn

[JohyPark]

The original one works fine. Please check:

Starting with C# 7.0, you can declare the out variable in the argument list of the method call, rather than in a separate variable declaration.

So, this example doesn't have a separate declare.
```c#
string numberAsString = "1640";

if (Int32.TryParse(numberAsString, out int number))
Console.WriteLine($"Converted '{numberAsString}' to {number}");
else
Console.WriteLine($"Unable to convert '{numberAsString}'");
// The example displays the following output:
// Converted '1640' to 1640
```

[BillWagner]

Thanks for asking the question @elninoisback

The comment by @JohyPark is correct. Starting with C# 7, the declaration can be inline where the variable is used.

I'll close this.