Solidity Programming Tutorials, Guides & Best Practices

• Description: A full-featured, open-source Bitcoin library for Node.js that allows you to build Bitcoin applications with ease.
• Use Cases:
• Build Bitcoin wallets and full-node implementations.
• Integrate Bitcoin functionality into existing Node.js applications.
• Develop custom Bitcoin transaction handling and mining scripts.
• Key Features:
• Full SPV and full-node support for Bitcoin.
• Modular architecture for building custom Bitcoin services.
• Detailed documentation and active community support.
• Installation:

  npm install bcoin

• Description: A peer-to-peer file system for storing and sharing files in a distributed manner.
• Key Features:
• Decentralized file storage and sharing.
• Files are content-addressed using cryptographic hashes.
• Ideal for storing DApp data, metadata, and files.
• Easily integrates with Ethereum and other blockchains.
• Website: IPFS

• Description: A decentralized protocol for indexing and querying blockchain data.
• Key Features:
• Allows DApps to query blockchain data efficiently using GraphQL.
• Supports indexing of data across multiple blockchains.
• Enables fast and reliable access to blockchain data for DApps.
• Integrates with Ethereum and IPFS.
• Website: The Graph

Once your contract is deployed, you can interact with it using Hardhat or a front-end interface.

• Open the Hardhat console:

- payable: Indicates that the function can receive Ether.

function setMyUint(uint _value) public {
    myUint = _value;
}

function getMyUint() public view returns (uint) {
    return myUint;
}

function add(uint a, uint b) public pure returns (uint) {
    return a + b;
}

function deposit() public payable {
    // Function to receive Ether
}

5. Avoid Unnecessary Computations

• Reduce redundant calculations or operations within your smart contract. Precompute values where possible and reuse them.
• Example: Store the result of a complex computation in a variable rather than recalculating it multiple times.