Smart Contracts Programming Tutorials, Guides & Best Practices

• Description: A lightweight and complete library for interacting with the Ethereum blockchain and its ecosystem.
• Key Features:
• Smaller and more modular than Web3.js.
• Easy-to-use API for interacting with contracts and wallets.
• Extensive support for signing transactions and handling wallets.
• Built-in utilities for interacting with Ethereum Name Service (ENS).
• Works well with Hardhat and other Ethereum tools.
• Website: Ethers.js

• Description: A library of secure and community-vetted smart contracts for Ethereum development.
• Key Features:
• Prebuilt, secure implementations of ERC-20, ERC-721, and ERC-1155 tokens.
• Reusable components for access control, governance, and more.
• Highly customizable and extensible.
• Regularly updated with best practices for security and gas efficiency.
• Website: OpenZeppelin Contracts

Gas is a fundamental concept in the Ethereum blockchain, serving as the unit that measures the computational work required to execute operations in smart contracts. Every transaction or operation on Ethereum consumes gas, and users must pay for it with Ether (ETH). Understanding how gas works and optimizing your smart contracts to minimize gas consumption is crucial for developing cost-effective and efficient decentralized applications (DApps). This tutorial will guide you through the essentials of gas in Ethereum, strategies for gas optimization, and best practices for writing efficient smart contracts.

Gas is the measure of computational effort required to execute operations on the Ethereum network. Each operation, from simple arithmetic to complex smart contract execution, consumes a specific amount of gas. Users must pay for gas in Ether, which compensates miners for the resources required to process and validate transactions.

After testing your DApp locally, the final step is to deploy it to a public Ethereum test network like Ropsten or Kovan.

Steps to Deploy: