Summary  
This chapter explains how variable scope governs where and when variables can be accessed and modified in code, covering local vs. global scope as well as block and module‐level scoping rules.

General domain of usage  
Function design

A beginner-friendly course introducing the essential concepts of C++ programming, including syntax, variables, control flow, functions, and basic data structures. Each section builds foundational knowledge, with practice challenges to reinforce learning.

Learn the basics of C++ syntax, structure, and how to write your first simple programs.

Understand how to declare, initialize, and use variables of different data types in C++.

Learn how to control the flow of your program using conditionals and loops.

Discover how to organize code into reusable functions and understand variable scope.

Work with collections of data using arrays and manipulate text using C++ strings.

Variable Scope

Variable Scope