Solidity Tutorial : all about Addresses

Table of Content

Introduction

1. What is (technically) an Ethereum Address ?
2. Basic of Addresses in Solidity & address literals
3. Address vs address payable
4. Methods available with addresses (including call(), delegatecall() and staticcall() )
5. Types conversions between addresses and address payable
6. Methods returning an address type
7. The Zero Address
8. Advanced Topics

References

There are nearly 49 million unique addresses on the Ethereum blockchain.

A Gentle Introduction

Let’s start with a very simple example to understand addresses in Ethereum (and in Blockchain in general). For this, we have to imagine a scenario.

Sender: You, Recipient: “John Doe, 13 example street, London, E11 2E3, UK”.

You are on holiday in New York. It’s the the first time you visit the city and you love it ! So much that you decide to tell to your friend John Doe that he should definitely visit it one day.