Ashlyn's code segment that moves the kangaroo is given a name to enable reuse by entering its name. Which programming concept is this?

Ashlyn's code segment that moves the kangaroo is given a name to enable reuse by entering its name. Which programming concept is this?

• A. Subroutine
• B. Function
• C. Procedure
• D. Macro

Answer: (B)

The idea being tested is using a named, reusable block of code that can take input to perform a task. This is what a function is. You define a function with a name, specify parameters that describe what it needs (for moving the kangaroo you might pass direction, distance, or speed), and then call that function by its name with specific arguments whenever you want the kangaroo to move. Because you can reuse this same block of code in different places by calling it with different inputs, it promotes modularity and reuse. A few related terms help shape the idea: a subroutine is any callable block of code; a procedure is a subroutine that doesn’t return a value in some languages; a macro is a preprocessor instruction that expands into code. In this scenario, the reusable, named, parameter-taking unit that can produce a result or effect at runtime best fits the concept of a function.

The idea being tested is using a named, reusable block of code that can take input to perform a task. This is what a function is. You define a function with a name, specify parameters that describe what it needs (for moving the kangaroo you might pass direction, distance, or speed), and then call that function by its name with specific arguments whenever you want the kangaroo to move. Because you can reuse this same block of code in different places by calling it with different inputs, it promotes modularity and reuse.

A few related terms help shape the idea: a subroutine is any callable block of code; a procedure is a subroutine that doesn’t return a value in some languages; a macro is a preprocessor instruction that expands into code. In this scenario, the reusable, named, parameter-taking unit that can produce a result or effect at runtime best fits the concept of a function.