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Mastering Delphi Programming: A Complete Reference Guide
book

Mastering Delphi Programming: A Complete Reference Guide

by Primož Gabrijelčič
November 2019
Beginner to intermediate content levelBeginner to intermediate
674 pages
15h
English
Packt Publishing
Content preview from Mastering Delphi Programming: A Complete Reference Guide

Patterns are useful

This is not a book about the theory behind patterns; rather, this book focuses on the aspects of their implementation. Before I scare you all off with all this talk about design patterns, their history, modern advances, anti-patterns, and so on, I have decided to present a very simple pattern using an example. A few lines of code should explain why a pattern—based approach to problem solving can be a good thing.

In the code archive for this chapter, you'll find a simple console application called DesignPatternExample. Inside, you'll find an implementation of a sparse array, as shown in the following code fragment:

type  TSparseRec = record  IsEmpty: boolean;  Value : integer;end;TSparseArray = TArray<TSparseRec>;

Each array ...

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Publisher Resources

ISBN: 9781838989118Other