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Solidity Programming Essentials

You're reading from Solidity Programming Essentials

Product type Book

Published in Apr 2018

Publisher Packt

ISBN-13 9781788831383

Pages 222 pages

Edition 1st Edition

Languages

Concepts

Programming Language

Table of Contents (17) Chapters

Title Page

Copyright and Credits

Packt Upsell

Contributors

Preface

1. Introduction to Blockchain, Ethereum, and Smart Contracts

2. Installing Ethereum and Solidity

3. Introducing Solidity

4. Global Variables and Functions

5. Expressions and Control Structures

6. Writing Smart Contracts

7. Functions, Modifiers, and Fallbacks

8. Exceptions, Events, and Logging

9. Truffle Basics and Unit Testing

10. Debugging Contracts

1. Other Books You May Enjoy

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Index

Contract composition

Solidity supports contract composition. Composition refers to combining multiple contracts or data types together to create complex data structures and contracts. We have already seen numerous examples of contract composition before. Refer to the code snippet for creating contracts using the new keyword shown earlier in this chapter. In this example, the client contract is composed of the HelloWorld contract. Here, HelloWorld is an independent contract and client is a dependent contract. client is a dependent contract because it is dependent on the HelloWorld contract for its completeness. It is a good practice to break down problems into multi-contract solutions and compose them together using contract composition.

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