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Solidity Programming Essentials

You're reading from   Solidity Programming Essentials A beginner's guide to build smart contracts for Ethereum and blockchain

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Product type Paperback
Published in Apr 2018
Publisher Packt
ISBN-13 9781788831383
Length 222 pages
Edition 1st Edition
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Author (1):
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Ritesh Modi Ritesh Modi
Author Profile Icon Ritesh Modi
Ritesh Modi
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Table of Contents (12) Chapters Close

Preface 1. Introduction to Blockchain, Ethereum, and Smart Contracts FREE CHAPTER 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 11. Other Books You May Enjoy

The address functions


In the chapter relating to data types, we purposely did not explain the functions related to the address data type. Although these functions could have been covered there, some of these functions can execute a fallback function automatically, and hence it is covered here.

Address provides five functions and a single property.

The only property provided by address is the balance property, which provides the balance available in an account (contract or individual) in wei, as shown in the following code snippet:

<<account>>.balance ;

In the preceding code, account is a valid Ethereum address and this returns the balance available in this in terms of wei.

Now, let's take a look at the methods provided by an account.

The send method

The send method is used to send Ether to a contract or to an individually owned account. Take a look at the following code depicting the send method:

<<account>>.send(amount);

The send function provides 2,300 gas as a fixed limit...

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