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The Essential Guide to Web3

You're reading from   The Essential Guide to Web3 Develop, deploy, and manage distributed applications on the Ethereum network

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Product type Paperback
Published in Nov 2023
Publisher Packt
ISBN-13 9781801813471
Length 366 pages
Edition 1st Edition
Concepts
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Author (1):
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Vijay Krishnan Vijay Krishnan
Author Profile Icon Vijay Krishnan
Vijay Krishnan
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Table of Contents (25) Chapters Close

Preface 1. Part 1 – Introduction to Web3 FREE CHAPTER
2. Chapter 1: Fundamentals of Blockchain and Web3 3. Chapter 2: Getting Started With Ethereum 4. Chapter 3: Your First Ethereum Transaction 5. Part 2 – All about Smart Contracts
6. Chapter 4: Introduction to Smart Contracts 7. Chapter 5: Creating and Deploying Your First Smart Contract 8. Chapter 6: Smart Contract Security and Access Controls 9. Part 3 – Writing Your DApps for Web3
10. Chapter 7: Developer Tools and Libraries for Web3 Development 11. Chapter 8: Writing and Testing Your First dApp on Web3 12. Part 4 – Fungible Tokens
13. Chapter 9: Introduction to Tokenization 14. Chapter 10: Creating Your First Token 15. Part 5 – Non-Fungible Tokens
16. Chapter 11: Non-Fungible Token Standards 17. Chapter 12: Creating Your First Non-Fungible Token 18. Part 6 – Web3 Advanced Topics
19. Chapter 13: Understanding Oracles 20. Chapter 14: Zero-Knowledge Proofs and Zero-Knowledge EVMs 21. Chapter 15: L2 Networks and Rollups 22. Chapter 16: Decentralized Autonomous Organizations – Overview 23. Index 24. Other Books You May Enjoy

Debugging smart contracts

In this section, we will take a quick overview of the built-in Hardhat debugger and how it can help debug issues easily.

The Hardhat console is a tool used to debug issues or errors in smart contracts during development. It is part of the Hardhat suite, which is a development framework for Ethereum smart contracts. The Hardhat console provides a simple interface for debugging smart contracts and allows developers to step through their code and inspect variables at runtime.

Here is an example of how to use the Hardhat console to analyze an issue in a smart contract:

  1. Install Hardhat: The Hardhat console is built in, so no other steps are required to enable it. You can install it using the following command:
     npm install --save-dev hardhat
  2. Compile your smart contracts: Before you can debug your smart contracts, you need to compile them as bytecode. You can use npx hardhat compile to compile the smart contracts in the contracts/ directory:
    npx hardhat...
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