Remove From Display List

class Example extends Phaser.Scene
{
    constructor ()
    {
        super();
    }

    preload ()
    {
        this.load.setBaseURL('https://cdn.phaserfiles.com/v410');
        this.load.spritesheet('diamonds', 'assets/sprites/diamonds32x5.png', { frameWidth: 64 });
    }

    create ()
    {
        //  Create 108 sprites in a grid so we can see them vanish easily
        const group = this.make.group({
            key: 'diamonds',
            frame: [ 0, 1, 2, 3, 4 ],
            frameQuantity: 22,
            max: 108
        });

        Phaser.Actions.GridAlign(group.getChildren(), {
            width: 12,
            height: 9,
            cellWidth: 64,
            cellHeight: 64,
            x: 48,
            y: 32
        });

        //  Remove one child from the display list every half a second
        const timedEvent = this.time.addEvent({
            delay: 500,
            callback: this.onEvent,
            callbackScope: this,
            loop: true
        });
    }

    onEvent ()
    {
        const child = this.children.getRandom();
        if (child)
        {
            this.children.remove(child);
        }
    }
}

const config = {
    scale: { mode: Phaser.Scale.FIT },
    type: Phaser.WEBGL,
    width: 800,
    height: 600,
    backgroundColor: '#2d2d2d',
    parent: 'game-container',
    pixelArt: true,
    scene: Example
};

const game = new Phaser.Game(config);