What does variable scope mean?
Scope refers to the specific block or region of code where a variable is visible, accessible, and can be modified.
Verify This Answer
Cross-check this information using these trusted sources:
More FAQs in Understanding Scope and Lifetime of Variables
Global variables can be modified by any part of the program, making it extremely difficult to track down bugs when data changes unexpectedly.
Block scope means a variable is only accessible within the specific {} brackets it was defined in, such as inside an if-statement or a for-loop.
Their lifetime ends. The memory they occupied is freed, and the data they held is destroyed.
Still have questions?
Browse all our FAQs or reach out to our support team