Arizona State University (ASU) CSE240 Introduction to Programming Languages Midterm Practice Exam

A local variable is defined within a specific function or block of code, which means its scope is restricted to that function or block. This characteristic allows the local variable to be used for temporary storage of data that is relevant only within the context in which it was created. Once the function or block of code is exited, the local variable is no longer accessible or retains any value. This encapsulation helps prevent naming conflicts and unintended side-effects in other parts of the program, thereby promoting better modularity and readability.

The ability of local variables to hold values temporarily ensures that they can be used effectively in computations without affecting the global state or logic of a program outside of their defined context. When the same variable name is used in different functions, each function operates independently without interference from others, supporting a clear and structured programming approach.