Global Variables vs Closures
Developers should use global variables when they need to share data across multiple functions or modules without passing it as parameters, such as for configuration settings, application state, or constants used throughout a program meets developers should learn closures to write more modular, maintainable, and efficient code, especially in functional programming or event-driven environments. Here's our take.
Global Variables
Developers should use global variables when they need to share data across multiple functions or modules without passing it as parameters, such as for configuration settings, application state, or constants used throughout a program
Global Variables
Nice PickDevelopers should use global variables when they need to share data across multiple functions or modules without passing it as parameters, such as for configuration settings, application state, or constants used throughout a program
Pros
- +However, they should be used sparingly due to risks like unintended side-effects, debugging difficulties, and reduced code modularity, making them suitable for small scripts or specific cases where local alternatives are impractical
- +Related to: variable-scoping, namespaces
Cons
- -Specific tradeoffs depend on your use case
Closures
Developers should learn closures to write more modular, maintainable, and efficient code, especially in functional programming or event-driven environments
Pros
- +They are essential for implementing callbacks, event handlers, and module patterns in JavaScript, as well as for creating private variables and stateful functions in languages like Python or Ruby
- +Related to: javascript, functional-programming
Cons
- -Specific tradeoffs depend on your use case
The Verdict
Use Global Variables if: You want however, they should be used sparingly due to risks like unintended side-effects, debugging difficulties, and reduced code modularity, making them suitable for small scripts or specific cases where local alternatives are impractical and can live with specific tradeoffs depend on your use case.
Use Closures if: You prioritize they are essential for implementing callbacks, event handlers, and module patterns in javascript, as well as for creating private variables and stateful functions in languages like python or ruby over what Global Variables offers.
Developers should use global variables when they need to share data across multiple functions or modules without passing it as parameters, such as for configuration settings, application state, or constants used throughout a program
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