How to make an action in chrome if a tab is active?

Question

JavaScript

How to show an alert if I click on a tab with a website?

Answer 1

Would this option work?

document.addEventListener("visibilitychange", function() {
  document.visibilityState === 'visible' && alert('Показываю алерт');
});

https://developer.mozilla.org/en-US/docs/Web/Event...