Definitions
- A sequence of instructions that performs a specific task within a larger program. - A set of instructions that can be called repeatedly from different parts of a program. - A block of code that performs a specific operation and returns control to the calling program.
- A block of code that performs a specific task and returns a value to the calling program. - A self-contained module of code that can be reused in different parts of a program. - A named section of code that can be called from other parts of a program to perform a specific task.
List of Similarities
- 1Both are blocks of code that perform a specific task.
- 2Both can be called from different parts of a program.
- 3Both can be reused in different programs or parts of a program.
- 4Both can take input parameters and return output values.
What is the difference?
- 1Return value: A subroutine does not necessarily return a value, while a function always returns a value.
- 2Purpose: A subroutine is used to perform a specific operation and return control to the calling program, while a function is used to perform a specific task and return a value to the calling program.
- 3Usage: A subroutine is typically used for code organization and reuse, while a function is used for computation and data manipulation.
- 4Scope: A subroutine is usually defined within a program or module, while a function can be defined globally or locally within a program.
- 5Syntax: A subroutine is called using the 'call' statement, while a function is called by its name.
Remember this!
Subroutine and function are both blocks of code that perform a specific task and can be called from different parts of a program. However, the main difference between them is that a subroutine does not necessarily return a value, while a function always returns a value. Additionally, a subroutine is used for code organization and reuse, while a function is used for computation and data manipulation.
