Data Locations - Storage, Memory and Calldata in Solidity | Live Ethereum Remix Tutorial

Description

In this tutorial, we dive deep into the core concepts of data locations in Solidity — storage, memory, and calldata — and explain why they are crucial to writing efficient and bug-free smart contracts. Whether you're just starting your blockchain development journey or looking to sharpen your Solidity skills, this video breaks down: ✅ What each data location means and its role in Ethereum smart contracts ✅ Differences between state variables and function variables ✅ When to use storage, memory, and calldata for arrays, structs, and mappings ✅ Detailed line-by-line walkthrough of example Solidity code with real-world explanations ✅ How to interact with contracts using these data locations and sample input values ✅ Gas and performance implications of choosing the right data location Contract example covered in this video: Dynamic arrays and mappings with different data locations Structs stored in storage vs memory Using calldata in external functions for optimized input handling