What is the difference between local and global variables?
Local variables are defined within a subroutine. Their scope/visibility ends when the cursor leaves the subroutine.
Global variables on the other hand are variables that exist outside of all the subroutines and functions, and are available to all of them.
CD
Related Computing A Level answers
All answers ▸Explain how the even parity system works when transmitting ASCII codes. Include a description of the roles of the sending device and the receiving device during transmission.
What is the difference between a dynamic and a static data structure?
Calculate -3 + 3 using Two's Complement and the Sign and Magnitude Method. Which works correctly?
How can I decide whether Quicksort or Mergesort is better for a given situation?