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![Ref returns
and Ref Locals
string[] myArray = { "one", "two", "three" };
WriteLine($"The first element of the array is {myArray[0]}");
ref string n = ref FirstElement(myArray);
n = "other"; //myArray[0] now equals "other"
WriteLine($"The first element of the array has become
{myArray[0]}");](https://image.slidesharecdn.com/donetconf2016-thefutureofc-sharp-161003111004/75/Donetconf2016-The-Future-of-C-21-2048.jpg)
![Local
Functions
class Program
{
static void Main(string[] args)
{
void testingLocalFunctions()
{
Console.WriteLine("Hello World!");
}
testingLocalFunctions();
}
}](https://image.slidesharecdn.com/donetconf2016-thefutureofc-sharp-161003111004/75/Donetconf2016-The-Future-of-C-22-2048.jpg)
Uploaded byJacinto Limjap
Donetconf2016: The Future of C#
The document discusses the future of C# and the .NET ecosystem, highlighting innovations and changes in the .NET framework, .NET Core, and Xamarin. It covers advancements in C# 7, including features like digit separators, ref returns, local functions, and pattern matching. The document emphasizes the evolving nature of Microsoft's approach, moving towards open source and multi-platform capabilities.
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Donetconf2016: The Future of C#
- 1. The Future ofC# JonLimjap Microsoft MVP forVisual Studio and DevelopmentTechnologies Philippine .NET Users Group Lead
- 2. About Me MicrosoftMVP forVisual Studio and DevelopmentTechnologies CTO & Co-Founder, NomadTravlr Inc. Lead, Philippine .NET Users Group http://jonlimjap.net @lattex | jonlimjap@gmail.com
- 3.
- 4. Where is Microsofttoday? Free or paid? Cheap or expensive? Open source or proprietary? Good or evil?
- 5. Exciting times aheadfor .NET
- 6. .NET FRAMEWORK .NETCORE XAMARIN APP MODELS BASE LIBRARIES * .NET today—app models and libraries
- 7. .NET FRAMEWORK .NETCORE XAMARIN APP MODELS BASE LIBRARIES .NET today—reusing code
- 8.
- 9. .NET tomorrow .NET FRAMEWORK.NET CORE XAMARIN *
- 10. .NET tomorrow—reusing code .NETFRAMEWORK .NET CORE XAMARIN
- 11.
- 12. .NET future innovation .NETFRAMEWORK .NET CORE XAMARIN * TOOLS
- 13.
- 14.
- 15.
- 16.
- 17. Microsoft’s changing tune… RunonWindows .NET as system component Run onVM (CLR) Black box compilers Edit inVisual Studio Proprietary Run everywhere Deploy with app Compile to native Open compiler APIs Use your favorite editor Open source
- 18. C# 7 It’s gettingfunkier every version!
- 19. Digit separators int bin =0b1001_1010_0001_0100; int hex = 0x1b_a0_44_fe; int dec = 33_554_432; int weird = 10000_000; double real = 1_000.111_1e-1_000;
- 20. Binary Literals intnineteen = 0b10011;
- 21. Ref returns and RefLocals string[] myArray = { "one", "two", "three" }; WriteLine($"The first element of the array is {myArray[0]}"); ref string n = ref FirstElement(myArray); n = "other"; //myArray[0] now equals "other" WriteLine($"The first element of the array has become {myArray[0]}");
- 22. Local Functions class Program { static voidMain(string[] args) { void testingLocalFunctions() { Console.WriteLine("Hello World!"); } testingLocalFunctions(); } }
- 23. C# 7 features thatare still… wonky
- 24. Tuples public (int x,int y) Compute(){} // Call the method var (x,y) = Compute(); public (int sum, int count) Tally(IEnumerable<int> values) { sum = 0; count = 0; foreach (var value in values) { sum += value; count++; } return (sum,count); }
- 25. Pattern Matching int? age =5; if (age is int newVal) { Console.WriteLine($"Your age is {newVal}"); }
- 26. RecordTypes //Instead of: public classCube { public int Width { get; set; } public int Height { get; set; } public int Depth { get; set; } } //We write this: public class Cube(int Width, int Height, int Depth)
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