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Delphi Cookbook

You're reading from   Delphi Cookbook Recipes to master Delphi for IoT integrations, cross-platform, mobile and server-side development

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Product type Paperback
Published in Jul 2018
Publisher
ISBN-13 9781788621304
Length 668 pages
Edition 3rd Edition
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Authors (2):
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Daniele Teti Daniele Teti
Author Profile Icon Daniele Teti
Daniele Teti
Daniele Spinetti Daniele Spinetti
Author Profile Icon Daniele Spinetti
Daniele Spinetti
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Toc

Table of Contents (12) Chapters Close

Preface 1. Delphi Basics FREE CHAPTER 2. Becoming a Delphi Language Ninja 3. Knowing Your Friends – The Delphi RTL 4. Going Cross-Platform with FireMonkey 5. The Thousand Faces of Multithreading 6. Putting Delphi on the Server 7. Linux Development 8. Riding the Mobile Revolution with FireMonkey 9. Using specific platform features 10. Delphi and IoT 11. Other Books You May Enjoy

Fun with anonymous methods – using higher-order functions

Since version 2009, the Delphi language (or better, its Object Pascal dialect) supports anonymous methods. What's an anonymous method? Not surprisingly, an anonymous method is a procedure or a function that does not have an associated name. An anonymous method treats a block of code just like a value so that it can be assigned to a variable, used as a parameter to a method, or returned by a function as its result value. In addition, an anonymous method can refer to variables and bind values to them in the context scope in which the anonymous method is defined. Anonymous methods are similar to closures defined in other languages, such as JavaScript or C#. An anonymous method type is declared as a reference to a function:

type 
  TFuncOfString = reference to function(S: String): String; 

Anonymous methods (or...

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