Rhythm Game Example

Here is an example of using immutable objects in the context of a rhythm game

// Set up an immutable object to represent a beat in the game
const beat = Object.freeze({
  sound: 'kick',  // The sound that will be played for this beat
  time: 1000      // The time in milliseconds when the beat occurs
});

// Create a copy of the beat object and update the time property
const updatedBeat = { ...beat, time: 1500 };

// Create a new array of beats for the game
const beats = [beat, updatedBeat];

// Add a new beat to the array
const newBeat = { ...beat, sound: 'snare', time: 2000 };
beats.push(newBeat);

// Delete a beat from the array
beats.splice(1, 1);

console.log(beats); // [ { sound: 'kick', time: 1000 }, { sound: 'snare', time: 2000 } ]

In this example, we use Object.freeze() to create an immutable object representing a beat in the game. We then create a copy of the object and update the time property, and add a new beat to the array by creating a copy of the original beat and modifying the sound and time properties. Finally, we delete a beat from the array using the splice() method.

Using immutable objects in this way can help ensure that the state of the game is not accidentally modified, which can help prevent bugs and make the code easier to understand and maintain.