Time elapsed after tab unfocus

[franmcod]

Hey, i'm trying to count the time elapsed between the browser tab loses focus and when it gets back focus. I can't seem to find any example on how to do this for phaser3

 

Thanks in advance.

[Andrew Chen]

 this.sys.game.events.on('hidden', function () {
            
           // game.scene.keys['GameScene'].sys.sleep();
var getLeavingTime = get leaving time here;

        }, this);

        this.sys.game.events.on('visible', function () {
           
var getBackTime = get back time here; 
            // game.scene.keys['GameScene'].sys.sleep();
          
            game.scene.keys['GameScene'].sys.wake();

        }, this);

 

so the time elapsed is equal getBackTime - getLeavingTime