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Solidity Programming Tutorials, Guides & Best Practices

Explore 7+ expertly crafted solidity tutorials, components, and code examples. Stay productive and build faster with proven implementation strategies and design patterns from DeveloperBreeze.

Tutorial
solidity

Understanding Gas and Optimization in Smart Contracts

To understand the impact of gas optimization, let’s look at some real-world examples from popular Ethereum projects:

1. Uniswap

Aug 22, 2024
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Tutorial
solidity

Building a Decentralized Application (DApp) with Smart Contracts

Example Front-End Code:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Message DApp</title>
</head>
<body>
    <h1>Decentralized Message Store</h1>
    <input type="text" id="messageInput" placeholder="Enter a new message">
    <button onclick="setMessage()">Set Message</button>
    <p id="currentMessage">Loading message...</p>

    <script src="https://cdn.jsdelivr.net/npm/web3@latest/dist/web3.min.js"></script>
    <script>
        const contractAddress = 'YOUR_CONTRACT_ADDRESS';
        const abi = [/* ABI from compiled contract */];

        const web3 = new Web3(Web3.givenProvider);
        const contract = new web3.eth.Contract(abi, contractAddress);

        async function setMessage() {
            const accounts = await web3.eth.getAccounts();
            const message = document.getElementById('messageInput').value;
            await contract.methods.setMessage(message).send({ from: accounts[0] });
            loadMessage();
        }

        async function loadMessage() {
            const message = await contract.methods.getMessage().call();
            document.getElementById('currentMessage').innerText = message;
        }

        window.onload = loadMessage;
    </script>
</body>
</html>

Aug 22, 2024
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Tutorial
solidity

Introduction to Smart Contracts on Ethereum

  • 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:

Aug 22, 2024
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