Struct pointers in Go - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a pointer to a struct variable.

Go

var p [1] Person

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

A%

B&

C->

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using & instead of * to declare a pointer type.

Using -> which is not valid in Go.

In Go, a pointer to a struct is declared using the * symbol before the struct type.

2fill in blank

medium

Complete the code to assign the address of a struct variable to a pointer.

Go

p = [1]person

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

A&

B*

C->

D%

Attempts:

3 left

💡 Hint

Common Mistakes

Using * instead of & to get the address.

Using -> which is invalid in Go.

Use the & operator to get the address of a variable in Go.

3fill in blank

hard

Fix the error in accessing a struct field through a pointer.

Go

fmt.Println(p[1]Name)

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

A.

B->

C*.

D&.

Attempts:

3 left

💡 Hint

Common Mistakes

Using -> which is invalid in Go.

Trying to dereference manually with *.

In Go, you access struct fields through a pointer using the dot . operator directly; Go automatically dereferences the pointer.

4fill in blank

hard

Fill both blanks to create a pointer to a struct and assign it.

Go

p := [1]Person[2]

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

A&

B*

C{}

D[]

Attempts:

3 left

💡 Hint

Common Mistakes

Using * instead of & to get the address.

Using [] which is for slices, not structs.

Use & to get the address of a struct literal Person{}.

5fill in blank

hard

Fill all three blanks to create a map with struct pointers and filter by a field.

Go

result := map[string]*Person{ [1]: [2]Person{Name: "Alice"} }
filtered := map[string]*Person{}
for k, v := range result {
  if v.Name [3] "Alice" {
    filtered[k] = v
  }
}

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

A"user1"

B&

C==

D:

Attempts:

3 left

💡 Hint

Common Mistakes

Using : instead of : in map literal key-value pair.

Not using & to get pointer to struct.

Using = instead of == for comparison.

Use a key string "user1", get the address of the struct with &, and compare the field with ==.