JSON serialization in Unity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to convert an object to a JSON string using Unity's JsonUtility.

Unity

string json = JsonUtility.[1](playerData);

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

ASerialize

BFromJson

CToJson

DParse

Attempts:

3 left

💡 Hint

Common Mistakes

Using FromJson instead of ToJson

Trying to use Serialize which is not a JsonUtility method

JsonUtility.ToJson converts an object to a JSON string.

2fill in blank

medium

Complete the code to convert a JSON string back to an object of type PlayerData.

Unity

PlayerData player = JsonUtility.[1]<PlayerData>(jsonString);

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

AFromJson

BParse

CDeserialize

DToJson

Attempts:

3 left

💡 Hint

Common Mistakes

Using ToJson instead of FromJson

Trying to use Deserialize which is not a JsonUtility method

JsonUtility.FromJson converts a JSON string back to an object.

3fill in blank

hard

Fix the error in the code to correctly deserialize a JSON string into a PlayerData object.

Unity

PlayerData player = JsonUtility.[1](jsonString);

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

AFromJson<PlayerData>

BParse

CFromJson

DToJson

Attempts:

3 left

💡 Hint

Common Mistakes

Calling FromJson without specifying the type

Using ToJson instead of FromJson

FromJson is a generic method and requires the type in angle brackets to deserialize correctly.

4fill in blank

hard

Fill both blanks to create a JSON string from a PlayerData object and then parse it back.

Unity

string json = JsonUtility.[1](player);
PlayerData newPlayer = JsonUtility.[2]<PlayerData>(json);

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

AToJson

BFromJson

CParse

DSerialize

Attempts:

3 left

💡 Hint

Common Mistakes

Using Parse or Serialize which are not JsonUtility methods

Mixing up ToJson and FromJson order

First, use ToJson to convert the object to JSON, then FromJson to convert JSON back to the object.

5fill in blank

hard

Fill all three blanks to serialize a PlayerData object with pretty print enabled and then deserialize it.

Unity

string json = JsonUtility.[1](player, [2]);
PlayerData loadedPlayer = JsonUtility.[3]<PlayerData>(json);

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

AToJson

Btrue

CFromJson

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Passing false instead of true for pretty print

Using Parse instead of FromJson

Use ToJson with the second argument true to enable pretty print, then FromJson to deserialize.