In this article, we will focus on an important topic, the receive Ether function in Solidity. This function allows us to receive the currency and is the first of the two possible approaches for receiving currency. The other approach is the fallback function, and we’ll briefly introduce it here to become aware of the wider … Read more
Solidity has many useful features that enable us, smart contract developers, to make safe, secure, and functional smart contracts. We have discussed other interesting Solidity features, and this time, we’ll focus on one very important feature of Solidity called function visibility. It determines who can call a function and who can access its variables. In … Read more
In this article, I will cover accessing multiple matches of a regex group in Python. 💡 Regular expressions (regex) are a powerful tool for text processing and pattern matching, making it easier to work with strings. When working with regular expressions in Python, we often need to access multiple matches of a single regex group. … Read more
No, ChatGPT really doesn’t help with this (yet…) 🙂 but it did help me write the code snippet explanation (which I attached after each code output). In my example, we will take a special route in Budapest, using one of the easiest to use library, gmplot. We can create our maps directly in HTML code … Read more
Image Credit: https://polygon.technology/matic-token You may ask: “Can I send MATIC token to ETH address?”. 🪙 You’re not alone. Many crypto users wonder if they can send tokens between different blockchain platforms, which is especially relevant when dealing with platforms such as Ethereum and Polygon (previously known as Matic Network). It’s important to understand how these … Read more
💡 Info: I haven’t used any affiliate links in this list, so you know there’s no bias. If you want to boost your ChatGPT skills, feel free to download our ChatGPT cheat sheet for free here. 👇 Download PDF Prompting Cheat Sheet (ChatGPT) If you want more cheat sheets and be on the right side … Read more
In this article, we’ll get a closer look at four main mechanisms for error handling in Solidity: functions assert, require, revert, and another approach based on exceptions. These mechanisms will help us tremendously in achieving stable and secure smart contracts, so this is the right moment to introduce them and lay the ground for a … Read more
In this article, we’ll learn about checked and unchecked expressions and when to use each of them. It’s part of our long-standing tradition to make this (and other) articles a faithful companion or a supplement to the official Solidity documentation for this article’s topic. We should consider whether an expression should be checked or unchecked … Read more
Prompt injection is a technique that can hijack a language model’s output by using untrusted text as part of the prompt. Similar to other injection attacks in the information security field, prompt injection can occur when instructions and data are concatenated, making it difficult for the underlying engine to distinguish between them (NCC Group Research). … Read more
Are you tired of going to chat.openai.com only to see that ChatGPT is currently overused? Wouldn’t it be great if you could use ChatGPT on your computer, locally, and without Internet access — even if you’re stranded on a remote island? 🏝️ Wouldn’t it be great if you could download a mega brain trained on … Read more
Bitcoin, a decentralized digital currency, uses a unique scripting system in its transactions to provide greater flexibility and security. One of the important script opcodes in this system is the OP_RETURN, which has provided an avenue for embedding data within the Bitcoin blockchain. 👇💡 The OP_RETURN is a script opcode that marks a transaction output … Read more
OpenAI’s GPT-4 has taken the world by storm, showing significant advancements over its predecessor, GPT-3.5. As a cutting-edge language model, it boasts an array of new capabilities and improvements, ranging from enhanced understanding of complex prompts to the ability to process visual inputs. One notable achievement of GPT-4 is its ability to score high on … Read more