@imharsh756

Behind the Scenes of Loops in Python

6d ago · 5 min read · When we use loops in Python, most of us simply write a for loop and move on. But behind the scenes, Python follows a powerful protocol called the iterator protocol. Understanding how iteration works i

HGHarsh Guptaharsh756.hashnode.dev

Build Your Own CLI Word Counter in Node.js

Aug 17, 2025 · 4 min read · Have you ever wanted to build your own Command Line Interface (CLI) tool? In this Blog, I’ll create a simple CLI app in Node.js that counts the number of words in a file. Along the way, we’ll explore how Node.js handles command-line arguments with pr...

Tuples in Python: Immutable and Powerful

Jun 4, 2025 · 2 min read · In Python, a tuple is a built-in data structure used to store a collection of items. Unlike lists, tuples are immutable, meaning once created, their contents cannot be changed. Tuples are great when you want to ensure your data stays constant through...

Mastering Dictionaries in Python: A Beginner's Guide

Jun 4, 2025 · 3 min read · A dictionary in Python is a collection of key-value pairs. It is unordered, mutable, and indexed by keys — which can be strings, numbers, or even tuples (if immutable). Let’s begin exploring with the Python shell open. lang = { "c++": "easy", ...

Lists in Python: A Complete Beginner’s Guide

Jun 3, 2025 · 3 min read · Let’s dive into one of the most commonly used data structures in Python — the List. Lists are dynamic, ordered collections that can store a mix of data types. Think of them as containers for storing multiple values in a single variable. But rather th...