The read-only isActive property of the UserActivation interface indicates whether the current window has transient user activation (see transient activation).

A boolean.

Use the isActive property to check whether the user is currently interacting with the page.

if (navigator.userActivation.isActive) {
  // proceed to request playing media, for example
}

• UserActivation
• UserActivation.hasBeenActive
• Features gated by user activation