How to Sell Coupons on ETH? Creating your own sample dApp in four parts: Welcome to the 2nd part of the series. In this part, we will see the implementation of Solidity code as we build the smart contract gradually. 🛑 Note: This is just a training “fun” dApp that shows you how to use … Read more
How to Sell Coupons on ETH? Creating your own sample dApp in four parts: Blockchain has bagged decent accolades recently for its transparency of the transactions made throughout the supply chain. By taking inspiration from that, we decided to make an imaginary Web3 dapp for the finxter academy. 🛑 Note: This is just a training … Read more
To split a string by a number, use the regex split method using the “\d” pattern.
Summary: Use one of the following ways to split a string to get an element from a string: Minimal Example Problem Formulation Example Challenge: Extract certain substrings from the given string and then combine the extracted substrings with a “/” in between to create a new string. Thus, you first have to split the string … Read more
This article will review some of the critical techniques used in Exploratory Data Analysis, specifically for Bivariate Analysis. We will review some of the essential concepts, understand some of the math behind correlation coefficients and provide sufficient examples in Python for a well-rounded, comprehensive understanding. What is Bivariate Analysis? Exploratory Data Analysis, or EDA, is … Read more
⭐Summary: To split a string and keep the delimiters/separators, you can use one of the following methods: (i) Using the regex package and its functions. (ii) Using a list comprehension. Minimal Example Problem Formulation Problem: Given a string in Python. How to split the string and also keep the spaces? Example Consider that there’s a … Read more
I ask every Finxter freelancer student the following question: 👉 “What’s your goal as a Python freelancer?” A common answer pattern I get is as follows — check if a similar outlook applies to you: 👇 “Stuck at a Job That Pays The Bills” “Well, I’m 43 and facing a mid-life crisis. Stuck in a … Read more
Problem Formulation Given a string in the octal form: How to convert the octal string to an integer in Python? For example, you want to convert the octal string ‘o10’ to the decimal integer 8. Here are a few other examples: Octal String Decimal ‘0o0’ 0 ‘0o4’ 4 ‘0o10’ 8 ‘0o14’ 12 ‘0o20’ 16 ‘0o77’ … Read more
⭐Summary: Use groupby() function from the itertools module to split a string whenever a character changes. Another way to do this is to use the zip function and manipulate the result using a list comprehension. Minimal Example Problem Formulation Problem: Given a string; How will you split the string when the character changes? Example Consider … Read more
Expressions and Control Structures in Solidity Smart Contracts In this article, we’ll talk about omitted function parameter names, i.e. what they are, when and why we should use them, and how they make our programming life more interesting. It’s part of our long-standing tradition to make this (and other) articles a faithful companion, or a … Read more
🚀Summary: Split the given string using the split() function and then unpack the items of the list returned by the split method into different variables. Minimal Example Problem Formulation 📝Problem: Given a string. How will you split the string and then store the split strings into different variables? Example 1 In the above problem, the … Read more
Solidity is one of the most popular languages for writing smart contracts on the Ethereum network. You can code Solidity online using the Remix IDE. This article will show you how! 👇 Quick Intro to Remix Remix is a free web-based integrated development environment (IDE) for developing Ethereum smart contracts. Remix allows developers to use … Read more