How to Check if a Given String is a Valid Ethereum Wallet Address?
A Valid Ethereum Wallet Address Starts with “0x” and is 42 characters long. To check if a given string is a valid Ethereum address, you would typically: Check if …
How to Get the Latest Block Number (Head Block) on Ethereum Blockchain?
The simplest method/function to retrieve the latest block number on ETH aka Ethereum Blockchain is via the following method: const Web3 = require('web3'); const getBlockNumber = async() => { …
How to Get the Gas Price and Gas Fee on Ethereum Blockchain?
On Ethereum Blockchain, we need to pay the miner Gas Fee to perform some operations, for example, invoking Smart Contract, or simply transfering ETH. The Gas Fee equals to …
How to Modify or Patch the Compiled Executable (inplace, reverse engineering)?
I have a compiled .o file, and how to modify a string constant in it? for example, change “hello” to “HELLO”. Let’s take a look at this simple C …
How to View the Byte Code (Dis-assembler) of a Compiled Executable?
To view the bytecode of a compiled executable, you can follow these steps: Compile the C source code to generate an executable file with debugging information using the -g …
Programming Language Conversion Tool based on ChatGPT AI
ChatGPT is not a simple AI – but it is rather a AGI – Artificial General Intelligence. I use ChatGPT to perform many tasks, and translating one programming language …