Bijay Kumar 
I started working with Python more than a decade ago, and one of the most useful data structures I discovered was the dictionary of lists. At first, I used Python dictionaries only for simple key-value pairs. But as my projects grew, I needed a way to store multiple values under a single key. That’s when … Read more >>
Recently, while working on a project in Python, I faced an issue where my Python dictionary contained duplicate values. In many real-world data cleaning tasks, duplicate values in a dictionary can cause reporting errors or skewed results. So, in this tutorial, I’ll show you four simple methods to remove duplicates from a dictionary in Python. … Read more >>
When I was working on a project for my clients, I often ran into newline characters that broke my workflow. Sometimes I was processing CSV files exported from Excel, and the text fields had hidden \n characters. Other times, I was cleaning up scraped web data where newlines made everything messy. If you’ve ever tried … Read more >>
As a Python developer, while working on a project, I often had to manipulate strings for formatting and text-processing tasks. One of the simplest but surprisingly common requirements is printing the characters of a string separated by spaces. At first glance, this may look trivial, but when you deal with user inputs, data cleaning, or … Read more >>
One of the common tasks I faced while working with Python was extracting and counting numbers hidden inside a string. At first glance, it sounds simple. But when you actually try to count numbers in a string, you quickly realize there are multiple approaches in Python, each with its own benefits. In this tutorial, I’ll … Read more >>
When I was working with files in Python, one of the most common errors I faced was the File Does Not Exist exception. If you’ve ever tried to open a file that wasn’t there, you’ve likely seen the dreaded FileNotFoundError. It can be frustrating, especially when you’re building something important like a log processor, a … Read more >>
When I first started coding in Python more than a decade ago, I often ran into small but frustrating issues. One of them was printing text with quotes, new lines, or special characters. At that time, I didn’t know about escape sequences in Python. Once I learned them, it made my code cleaner and easier … Read more >>
Recently, I was working on a React project where I needed to reuse the same logic across multiple components. The issue was… I didn’t want to repeat the same code again and again. That’s when I used Higher-Order Components (HOCs). In this tutorial, I’ll show you how I use HOCs in React with simple examples. … Read more >>
Recently, I was helping a team of junior developers in New York build a small React dashboard for tracking sales data. Some of them were using class components, while others preferred functional components with hooks. This created confusion, so I decided to walk them through both approaches. In this tutorial, I’ll show you the difference … Read more >>
I was working on a React project where I needed a modal component to confirm user actions. The issue is… React doesn’t come with a built-in modal. So, I had to create one from scratch. In this article, I’ll show you two simple ways to create a modal component in React. The first method uses … Read more >>
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