Smart Contracts Programming Tutorials, Guides & Best Practices

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:

Now that you’ve built a basic DApp, you can explore more complex and real-world use cases. DApps can be used in various domains, including:

• Decentralized Finance (DeFi): Building financial services like lending platforms, exchanges, and stablecoins.
• Gaming: Creating decentralized games where users truly own in-game assets.
• Supply Chain Management: Tracking and verifying the provenance of goods.
• Identity Management: Developing secure and decentralized identity systems.

• Decentralized: Operates on the blockchain, not controlled by any single entity.
• Trustless: Executes automatically when conditions are met, without requiring trust between parties.
• Immutable: Once deployed, the contract's code cannot be changed, ensuring the terms are fixed.

Before writing a smart contract, we need to set up a development environment. Here’s what you need: