Solidity Programming Tutorials, Guides & Best Practices

• Description: A decentralized computing network and app ecosystem designed to build decentralized applications on top of blockchains.
• Use Cases:
• Build decentralized applications with identity, storage, and smart contracts.
• Use Gaia storage for decentralized file storage.
• Implement user authentication and identity management in DApps.
• Key Features:
• Provides SDKs for JavaScript, iOS, and Android.
• Integrates easily with existing blockchains and decentralized storage solutions.
• Focused on privacy and user data ownership.
• Installation:

  npm install @stacks/blockchain-api-client

• Description: The official documentation for OpenZeppelin’s smart contract libraries and tools.
• Key Features:
• Guides on using OpenZeppelin Contracts, SDK, and Defender.
• Best practices for secure smart contract development.
• Tutorials on integrating OpenZeppelin tools with DApps.
• Regularly updated with the latest security features.
• Website: OpenZeppelin Documentation

• Description: An interactive tutorial platform for learning Solidity by building a game.
• Key Features:
• Step-by-step lessons on Solidity and smart contract development.
• Interactive coding exercises and challenges.
• Gamified learning experience.
• Covers basic to advanced Solidity topics.
• Website: CryptoZombies

• In the contracts directory, create a new file called MyToken.sol:

     touch contracts/MyToken.sol

• Avoid complex computations within loops.

• Use immutable and constant for variables that do not change.

Different operations in a smart contract consume different amounts of gas. Simple operations like adding two numbers are inexpensive, while more complex operations like loops or external contract calls can be costly. It’s important to understand how various Solidity operations consume gas.

Examples of Gas Costs: