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<html><body><button onClick="myTimer = setInterval(myCounter, 1000)">Start counter!</button><p id="demo">Click on the button above and I will count forever.</p><button onClick="clearInterval(myTimer)">Stop counter!</button><script>var c = 0;function myCounter() { document.getElementById("demo").innerHTML = ++c;}</script> </body><!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_timing_stop by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:07:17 GMT --></html>