Fungsi (Parameter)

Summary

This video explores the essential concepts of parameters in functions, breaking them down into input, output, and input-output categories. It explains the distinction between actual parameters (also called formal parameters) and arguments, illustrating how parameters are used in functions for operations such as multiplication, addition, and subtraction. Examples demonstrate how parameters can store input values, return output, or serve both purposes. The tutorial emphasizes how to define, call, and pass arguments to functions, providing clear insights for programming beginners seeking to understand how functions handle parameters.

Takeaways

• 😀 Functions can have two types of parameters based on their location: actual (or formal) parameters defined when the function is declared, and arguments given when the function is called.
• 😀 Parameters in a function can be categorized into three types: input parameters, output parameters, and parameters that serve both as input and output.
• 😀 Input parameters are used to hold the values entered into a function for processing.
• 😀 Output parameters store the results of a function's processing, holding the function's return values.
• 😀 Some parameters function both as inputs and outputs, receiving values for processing and also returning a result.
• 😀 A multiplication function example was used to demonstrate defining and using parameters, where integer parameters were used to perform the multiplication operation.
• 😀 Parameters are dynamic variables, meaning their values can change based on the inputs provided during function calls.
• 😀 When calling a function, the number of arguments must match the number of parameters defined in the function. These arguments are inserted into the parameters during the call.
• 😀 In the multiplication function, for instance, two integer parameters were defined to store values to be multiplied, and arguments for these parameters were passed in the function call.
• 😀 A summation function was also created, where input parameters were used to hold the numbers being added, and the result of the addition was stored in an output parameter.
• 😀 A subtraction function example was shown, where a single parameter served both as input and output, receiving a value and then being modified by subtracting a fixed number (3).

Q & A

What are the two types of parameters in a function?

The two types of parameters in a function are actual parameters (or formal parameters), which are defined in the function declaration, and arguments, which are passed when the function is called.

What is the role of input parameters in a function?

Input parameters are used to hold values that are passed into the function. These values will be processed during the execution of the function.

What are output parameters used for?

Output parameters are used to hold values that are generated by the function after processing, and these values are returned or utilized outside the function.

What is a parameter that serves both as input and output?

A parameter that serves both as input and output is used to hold a value that is first processed by the function and then returned as output, after being modified during the function's execution.

What is the main purpose of the multiplication function in the script?

The multiplication function is designed to process and return the result of multiplying two input values. The function takes two parameters, multiplies them, and returns the product.

How are values assigned to function parameters during a function call?

Values are assigned to function parameters during the function call by passing arguments in the same order as the parameters were defined in the function declaration.

What is the expected output of the multiplication function when 3 and 5 are passed as arguments?

When 3 and 5 are passed as arguments to the multiplication function, the expected output is 15, which is the product of 3 and 5.

How does the summation function handle input and output?

The summation function takes two input parameters (numbers), adds them together, and stores the result in an output parameter. The result is then returned or used outside the function.

In the subtraction function, what is the role of the parameter Bill?

In the subtraction function, the parameter Bill serves both as an input and output. It is first used to receive a value, which is then processed by subtracting 3 from it, and the result is stored back in the same parameter.

What is the result of subtracting 3 from the value 9 in the subtraction function?

The result of subtracting 3 from 9 in the subtraction function is 6, as shown by the processed value in the output.