DETECT WHEN USER SWITCHES A TAB
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <p>hi hello everyone please subscribe my youtube channel</p> <script> document.addEventListener('visibilitychange' ,function(){ if (document.visibilityState == "visible") { document.title = "active tab" }else{ document.title = "inactive tab" } }) </script> ...