Objects and JSON Lesson

Scene

An object stores related information as key-value pairs. The key gives the property a name, and the value stores the data. Objects are useful when one thing has several details that belong together.

JSON is a text format based on objects and arrays. It is commonly used when data moves between a website and a server because it can be sent as text and then parsed back into JavaScript data.

Script

Code Runner Challenge

Objects and JSON Lesson

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%%js

// CODE_RUNNER: Objects and JSON Lesson

const player = {
  name: "Nova",
  level: 4,
  health: 75
};

const savedPlayer = JSON.stringify(player);
const loadedPlayer = JSON.parse(savedPlayer);

console.log(loadedPlayer.name + " is level " + loadedPlayer.level);

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Lines: 1 Characters: 0

Output

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The object groups the player data. JSON.stringify turns it into text, and JSON.parse turns the text back into usable JavaScript data.