Function parameters in Go - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a function with one integer parameter named x.

Go

func printNumber([1] int) {
    fmt.Println(x)
}

Drag options to blanks, or click blank then click option'

Anumber

Bnum

Cvalue

Dx

Attempts:

3 left

💡 Hint

Common Mistakes

Using a parameter name different from the one used inside the function causes an error.

The parameter name must be x to match the usage inside the function.

2fill in blank

medium

Complete the code to declare a function that takes two string parameters: first and last.

Go

func fullName([1] string, last string) string {
    return first + " " + last
}

Drag options to blanks, or click blank then click option'

Afirst

Bname

Cfname

Dlast

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different parameter name than the one used in the function body.

The first parameter must be named first to match the return statement.

3fill in blank

hard

Fix the error in the function parameter declaration to accept a float64 parameter named price.

Go

func calculateTax([1] float64) float64 {
    return price * 0.1
}

Drag options to blanks, or click blank then click option'

Aprice

Btax

Camount

Dcost

Attempts:

3 left

💡 Hint

Common Mistakes

Using a parameter name different from the one used inside the function causes an undefined variable error.

The parameter name must be price to match its usage inside the function.

4fill in blank

hard

Fill both blanks to declare a function that takes an int parameter age and a string parameter name.

Go

func greet([1] int, [2] string) string {
    return fmt.Sprintf("Hello %s, you are %d years old", name, age)
}

Drag options to blanks, or click blank then click option'

Aage

Byears

Cname

Dperson

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping parameter names or using names not matching the function body.

The parameters must be named age and name to match their usage in the Sprintf call.

5fill in blank

hard

Fill all three blanks to declare a function that takes a string parameter title, an int parameter pages, and a float64 parameter price.

Go

func bookInfo([1] string, [2] int, [3] float64) string {
    return fmt.Sprintf("%s has %d pages and costs $%.2f", title, pages, price)
}

Drag options to blanks, or click blank then click option'

Atitle

Bpages

Cprice

Dcost

Attempts:

3 left

💡 Hint

Common Mistakes

Using parameter names that do not match the variables used inside the function.

The parameter names must be title, pages, and price to match their usage in the Sprintf call.