Function Declaration vs Function Expression: What’s the Difference?

Introduction Hey there, my fellow code readers! Imagine this: You're running a small family-owned kirana store in a busy Mumbai neighbourhood, where every day brings a flood of customers asking for the same things – calculating the total cost of groceries, applying a loyalty discount, or figuring out change for a ₹500 note. Instead of crunching the numbers from scratch each time, wouldn't it be smarter to have a quick, reusable method ready at hand? Like that well-worn ledger formula your dad uses to tally up daily sales without reinventing the wheel. That's precisely what functions are in JavaScript – reusable blocks of code that handle repetitive tasks efficiently . Whether you're coding an app to manage inventory for your shop during festive seasons like Ganesh Chaturthi or building an online delivery system for essentials, grasping functions is essential. But here's the fun part: functions come in two main styles – declarations and expressions . In this blog, we'll unpack them step