donetconf2016: the future of c#
TRANSCRIPT
The Future of C#Jon Limjap
Microsoft MVP for Visual Studio and Development Technologies
Philippine .NET Users Group Lead
About Me
Microsoft MVP for Visual Studio and Development Technologies
CTO & Co-Founder, Nomad Travlr Inc.
Lead, Philippine .NET Users Group
http://jonlimjap.net
@lattex | [email protected]
Philippine .NET Users Group (PHINUG)
facebook.com/groups/phinug
Where is Microsoft today?Free or paid? Cheap or expensive? Open source or proprietary? Good or evil?
Exciting times ahead for .NET
.NET FRAMEWORK .NET CORE XAMARIN
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.NET today—app models and libraries
.NET FRAMEWORK .NET CORE XAMARIN
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.NET today—reusing code
.NET today—challenges
.NET tomorrow
.NET FRAMEWORK .NET CORE XAMARIN
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.NET tomorrow—reusing code
.NET FRAMEWORK .NET CORE XAMARIN
.NET standard libraries—advantages
.NET future innovation
.NET FRAMEWORK .NET CORE XAMARIN
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TOOLS
Developed in the open
http://dotnet.github.io
http://stackoverflow.com/research/developer-survey-2016#technology-most-popular-technologies
Most popular technologies
http://stackoverflow.com/research/developer-survey-2016#technology-most-loved-dreaded-and-wanted
Most loved technologies
http://stackoverflow.com/research/developer-survey-2016#technology-most-loved-dreaded-and-wanted
Most dreaded technologies
Microsoft’s changing tune…
Run on Windows
.NET as system component
Run on VM (CLR)
Black box compilers
Edit in Visual Studio
Proprietary
Run everywhere
Deploy with app
Compile to native
Open compiler APIs
Use your favorite editor
Open source
C# 7It’s getting funkier every version!
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;
Binary Literals int nineteen = 0b10011;
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]}");
Local Functions
class Program {
static void Main(string[] args){
void testingLocalFunctions(){
Console.WriteLine("Hello World!");}
testingLocalFunctions();}
}
C# 7 features that are still… wonky
Tuples
public (int x, int y) Compute(){}// Call the methodvar (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);
}
Pattern Matching
int? age = 5;if (age is int newVal){
Console.WriteLine($"Your age is {newVal}");}
Record Types
//Instead of:public class Cube{
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)
Philippine .NET Users Group (PHINUG)
facebook.com/groups/phinug