Why variables are needed in Go - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a variable named age with value 30.

Go

var age [1] = 30

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

Abool

Bstring

Cint

Dfloat64

Attempts:

3 left

💡 Hint

Common Mistakes

Using string type for a number.

Forgetting to specify the type.

In Go, int is used to declare integer variables like age which holds whole numbers.

2fill in blank

medium

Complete the code to assign the value 100 to the variable score.

Go

var score int
score [1] 100

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

A=

B==

C:=

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Using == instead of = for assignment.

Using := when variable is already declared.

The single equals sign = is used to assign a value to a variable in Go.

3fill in blank

hard

Fix the error in the code to declare and assign variable name with value "Alice".

Go

var name [1] = "Alice"

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

Aint

Bfloat64

Cbool

Dstring

Attempts:

3 left

💡 Hint

Common Mistakes

Using numeric types for text variables.

Omitting the type declaration.

The variable name holds text, so its type must be string.

4fill in blank

hard

Fill both blanks to declare a variable height of type float64 and assign it the value 1.75.

Go

var height [1] [2] 1.75

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

Afloat64

B=

C:=

Dint

Attempts:

3 left

💡 Hint

Common Mistakes

Using int type for decimal numbers.

Using := when variable is declared with var.

Use float64 for decimal numbers and = to assign the value.

5fill in blank

hard

Fill all three blanks to declare and assign a variable isActive of type bool with value true.

Go

var [1] [2] [3] true

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

AisActive

Bbool

C=

Dint

Attempts:

3 left

💡 Hint

Common Mistakes

Using int type for boolean values.

Forgetting to assign a value.

Declare the variable name isActive, type bool, and assign it true using =.