Book Image

Ethereum Cookbook

By : Manoj P R
Book Image

Ethereum Cookbook

By: Manoj P R

Overview of this book

Ethereum and Blockchain will change the way software is built for business transactions. Most industries have been looking to leverage these new technologies to gain efficiencies and create new business models and opportunities. The Ethereum Cookbook covers various solutions such as setting up Ethereum, writing smart contracts, and creating tokens, among others. You’ll learn about the security vulnerabilities, along with other protocols of Ethereum. Once you have understood the basics, you’ll move on to exploring various design decisions and tips to make your application scalable and secure. In addition to this, you’ll work with various Ethereum packages such as Truffle, Web3, and Ganache. By the end of this book, you’ll have comprehensively grasped the Ethereum principles and ecosystem.
Table of Contents (13 chapters)

Deciding between arrays and mappings

Arrays and mappings in solidity are the most commonly used data types to store complex data. There are trade-offs in using one over the other, and each has its own advantages. In this recipe, you will learn about common use cases for arrays and mappings.

How to do it...

Arrays and mappings are used for a series of objects, all of which are the same size and type. Arrays store data sequentially with an incrementing index, whereas mappings store data as key-value pairs (which can also be seen as hash tables).

Arrays

Follow these steps...