Disadvantages of local variable
- Limited Accessibility: Local variables cannot be accessed outside of the scope in which they are defined, which may restrict their use in certain scenarios.
- Potential for Shadowing Bugs: Shadowing, where a local variable hides another variable with the same name in an outer scope, can lead to bugs and confusion if not handled properly.
- Lifetime Limited to Scope: Local variables cease to exist once the scope in which they are defined exits, which may be a disadvantage if persistent data storage is required.
Local and Global Variables
Local variables are declared within a specific block of code, such as a function or method, and have limited scope and lifetime, existing only within that block. Global variables, on the other hand, are declared outside of any function and can be accessed from any part of the program, persisting throughout its execution.
Table of Content
- Local Variable
- Example of Local Variable
- Advantages of local variable
- Disadvantages of local variable
- Global Variable
- Example of Global Variable
- Advantages of global variable
- Disadvantages of global variable