Oct 3, 2025 · 2 min read · Today, we’re creating a digital polling station! Users can vote for their favorite candidates. The contract remembers who voted, so each address can vote only once. Votes for each candidate are stored on the blockchain. This teaches how to manag...
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Oct 2, 2025 · 2 min read · Yesterday, in Day 1, I built a simple counter contract that could increment or decrement a stored number. Today, we’re taking another step forward into Solidity fundamentals by learning how to store and retrieve text data on the blockchain. The Chal...
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Aug 4, 2024 · 3 min read · 🛠️ Setting Up Your Development Environment We will use Remix IDE, an online integrated development environment, to write, deploy, and interact with smart contracts. No installation required! Just visit Remix IDE in your browser. ✍️ Writing Your Firs...
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Apr 12, 2024 · 10 min read · Ride-hailing businesses such as Uber and InDrive are fast becoming interwoven into modern society. They are a million-dollar industry. In this tutorial, I built a smart contract for a ride-hailing service company with Solidity and tested it locally w...
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Sep 3, 2023 · 5 min read · What is Solidity? 🤔 Solidity is a programming language that is used to interact with blockchain ecosystem. Solidity is specific to Ethereum compatible blockchains (Ethereum, Polygon, Binance smart chain, Optimism, etc..) There are many other languag...
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Jul 25, 2023 · 5 min read · Gas Optimization What is Gas Optimization? Gas optimization in Solidity is like finding ways to use less gas when you run a program on the Ethereum blockchain. In the Ethereum network, every operation in a smart contract consumes a certain amount of ...
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Jul 21, 2023 · 8 min read · Error Handling In Solidity, pt. 5 Finally, we've reached the end of error handling in Solidity. In Part 1, we talked about the importance of error handling in solidity, potential risks and vulnerabilities, and the impact of error handling on user exp...
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Jul 20, 2023 · 6 min read · In Part 1, we saw the importance of error handling in solidity, potential risks and vulnerabilities, and the impact of error handling on user experience and contract security. Then we dived deeper into the different types of exceptions that can occur...
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Jul 20, 2023 · 5 min read · The try-Catch mechanism and how it improves error handling Error handling has been so exciting. It opens us to the world of secured code in solidity. In the first part of error handling, we talked about the importance of error handling in solidity, p...
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Jul 19, 2023 · 9 min read · Error handling in solidity If you have not read the first part of error handling, click here to get an understanding of what it is. In this part, we will be talking about the different types of exceptions that can occur in Solidity contracts, such as...
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