To get the most out of this book

Knowledge of at least one object-oriented language is required. It's very good if you know some JavaScript.

We are going to make extensive use of NPM, and we are going to recap the basics of blockchain, but some prior basic knowledge is always beneficial, of course.

Download the example code files

You can download the example code files for this book from your account at www.packtpub.com. If you purchased this book elsewhere, you can visit www.packtpub.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packtpub.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/Ethereum-Projects-for-Beginners. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "This can be done by typing ganache-cli in the terminal window."

A block of code is set as follows:

function MetaCoin() public {
    balances[tx.origin] = 10000;
  }

Any command-line input or output is written as follows:

C:\Windows\System32\my_project>truffle-cli compile

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Type in the localhost URL mentioned previously and click Save."

Warnings or important notes appear like this.

Tips and tricks appear like this.