What is an Argument?
- Argument refers to the “value” passed to a program or function.
- It is used primarily as data required for processing by functions or programs.
Simple Explanation
An argument is the data you pass to a program or function. When a function performs a task, it uses the argument to carry out its processing.
Detailed Explanation
1. The Relationship Between Functions and Arguments
A function is a “bundle of operations” designed to perform a specific task. For example, consider a function that calculates the sum of numbers. The function takes “numbers” as its input and computes their sum. These “numbers” are the arguments passed to the function.
In simpler terms:
- Function: A process to calculate the sum of numbers.
- Argument: The numbers provided to the function for calculation.
2. Difference Between Arguments and Return Values
Another term closely related to arguments is “return value.” The return value is the result produced by the function after processing the provided arguments. While arguments are the input data, the return value is the output or result of the function.
For example, in the number addition function:
- Arguments: The numbers given to the function.
- Return Value: The sum of those numbers.
3. Real-World Example
To illustrate with a more relatable example, think about ordering food at a restaurant:
- Argument: Ordering a “hamburger” from the restaurant.
- Return Value: Receiving the “hamburger” you ordered.
Here, the “hamburger” you ordered is the argument, and the “hamburger” you receive is the return value.
4. Summary
- Argument: The “input value” or “data” passed to a function or program. It is used by the function to perform its task.
- Return Value: The “result” returned by the function after processing the arguments.
Understanding arguments and return values is crucial for grasping how functions operate. Arguments are the “input” for processing, while return values are the “output” produced.