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Building Blockchain Projects

You're reading from Building Blockchain Projects Building decentralized Blockchain applications with Ethereum and Solidity

Product type Paperback

Published in Apr 2017

Publisher Packt

ISBN-13 9781787122147

Length 266 pages

Edition 1st Edition

Languages

Solidity

Tools

Blockchain

Concepts

Blockchain

Author (1):

Narayan Prusty

View More author details

Table of Contents (10) Chapters

Preface

1. Understanding Decentralized Applications FREE CHAPTER

2. Understanding How Ethereum Works

3. Writing Smart Contracts

4. Getting Started with web3.js

5. Building a Wallet Service

6. Building a Smart Contract Deployment Platform

7. Building a Betting App

8. Building Enterprise Level Smart Contracts

9. Building a Consortium Blockchain

Returning multiple values

Solidity allows functions to return multiple values. Here is an example to demonstrate this:

contract sample 
{ 
    function a() returns (int a, string c) 
    { 
        return (1, "ss"); 
    } 

    function b() 
    { 
        int A; 
        string memory B; 

        //A is 1 and B is "ss" 
        (A, B) = a(); 

        //A is 1 
        (A,) = a(); 

        //B is "ss" 
        (, B) = a(); 
    } 
}

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Authors (1)

Narayan Prusty

Narayan Prusty

Narayan Prusty is a full-stack developer. He works as a consultant for various start-ups around the world. He has worked on various technologies and programming languages but is very passionate about JavaScript, WordPress, Ethereum, Solr, React, Cordova, MongoDB, and AWS. Apart from consulting for various start-ups, he also runs a blog titled QNimate and a video tutorial site titled QScutter, where he shares information about a lot of the technologies he works on.

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