Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Global scope refers to the area outside of any blocks or functions where variables are defined. Variables declared in the global scope can be accessed from anywhere in the program.
Local scope is a restricted area within a block or function where variables are defined and accessible. Unlike global scope, local scope is limited to specific portions of code.
Namespace: A namespace is a container that holds a set of identifiers (variables, functions, classes) to prevent naming conflicts between different parts of a program. It helps organize and group related entities together.
Module Scope: Module scope refers to the visibility and accessibility of variables within a module or file. Variables declared at this level can be accessed by other modules if explicitly exported but remain hidden from other parts of the program by default.