Lucky Sevens - About Visual Studio 2017 and C# 7

Transcript

1. SZCZĘŚLIWE SIÓDEMKI CO NOWEGO W VISUAL STUDIO 2017 I C# 7 IWONA LALIK
2. O MNIE
3. Kraków Software Developer / Software Architect
4. FREE TIME Blog - My side project programistka.net
5. RELAX
8. VISUAL STUDIO 2017
9. Installation
19. LET'S PLAY
22. PRODUCTIVITY
29. REFACTORINGS
39. TESTING
46. INTELLISENSE
49. Open Folder Javascript Debugging XAML - Edit and Continue Roaming Extensions Manager Editor Config
50. C# 7
51. SYNTACTIC SUGAR LITERAL IMPROVEMENTS
52. var bigNumber = 1000000000; var bigNumber = 1_000_000_000; const int binNum = 0b01; const int binNum = 0b0000_0000_0000_0001;
53. LOCAL FUNCTIONS public string GetBookInformation() { string GetAuthorInformation() { return string.Format($"Author: {Author.Name}" + $" {Author.Surname}"); } return GetAuthorInformation() + "\r\nTitle: {Title},\r\n" + "Publication Year: {PublicationYear},\r\n" + "Number Of Pages: {NumberOfPages}"; }
54. TUPLES public (string Title, int PublicationYear) GetPublicationInfo() { return (Title, PublicationYear); } var publicationInfo = book.GetPublicationInfo(); Console.WriteLine($"Title: {publicationInfo.Title}," + $"Publication Year: {publicationInfo.PublicationYear}");
55. PATTERN MATCHING
56. var newBook = new Book() {...} switch(newBook) { case PaperBook b when b.NumberOfPages > 100: //some action break; case PaperBook b: //some action break; case Ebook e when e.PublicationYear > (new DateTime(2000, 1, 01)).Year: //some action break; case Ebook e: //some action break; default: //some action break; case null: throw new ArgumentNullException(nameof(newBook)); }
57. LINKS - VISUAL STUDIO 2017 Download Release notes https://www.visualstudio.com/pl/vs/visual-studio-2017-rc/ https://www.visualstudio.com/en- us/news/releasenotes/vs2017-relnotes
58. LINKS - C# 7 Language Feature Status https://github.com/dotnet/roslyn/blob/ c830f88e093d8753e92e7f1054393e456e6fac20/docs/ Language%20Feature%20Status.md
59. DZIĘKUJĘ! @programistka iwona.lalik@gmail.com http://programistka.net https://speakerdeck.com/programistka/lucky-sevens- about-visual-studio-2017-and-c-number-7