Slice creation in Go - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a slice of integers named numbers.

Go

numbers := [1]

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

A[]int{1, 2, 3, 4}

B[4]int{1, 2, 3, 4}

Cmap[int]int{1:2, 3:4}

Dint{1, 2, 3, 4}

Attempts:

3 left

💡 Hint

Common Mistakes

Using array syntax with size instead of slice syntax.

Using map syntax instead of slice.

Omitting the brackets.

In Go, slices are created using []type{values}. Option A correctly creates a slice of integers.

2fill in blank

medium

Complete the code to create an empty slice of strings named words.

Go

var words [1]

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

Amap[string]string

Bstring

C[]string

D[3]string

Attempts:

3 left

💡 Hint

Common Mistakes

Using array type instead of slice.

Using map type instead of slice.

Declaring as a single string variable.

To declare an empty slice of strings, use var words []string.

3fill in blank

hard

Fix the error in the code to create a slice of floats with length 5.

Go

floats := make([1], 5)

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

A[]float64

Bmap[float64]int

Cfloat64

D[5]float64

Attempts:

3 left

💡 Hint

Common Mistakes

Using array type instead of slice in make.

Using a single type without brackets.

Using map type instead of slice.

The make function requires a slice type like []float64 to create a slice with length 5.

4fill in blank

hard

Fill both blanks to create a slice of integers with length 3 and capacity 5.

Go

nums := make([1], [2], 5)

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

A[]int

B3

C5

Dint

Attempts:

3 left

💡 Hint

Common Mistakes

Using array type instead of slice type.

Swapping length and capacity values.

Using a single type without brackets.

The make function creates a slice with type []int, length 3, and capacity 5.

5fill in blank

hard

Fill all three blanks to create a slice of strings named colors with initial values and print its length.

Go

colors := [1]{"red", "green", "blue"}
fmt.Println(len([2]))
fmt.Println([3][1])

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

A[]string

Bcolors

Dmap[string]int

Attempts:

3 left

💡 Hint

Common Mistakes

Using map type instead of slice.

Using wrong variable names in print statements.

Omitting brackets in slice creation.

We create a slice of strings with []string{"red", "green", "blue"}. Then we print its length and the second element.