uupaa/tap_tap.htm

## tap_tap.htm
<!DOCTYPE html><html><head><meta charset="utf-8">
<script>
window.onload = function() {
    var lastTouchEnd = 0; // last touchend time

    document.body.addEventListener("mousedown",  touchstart, false);
    document.body.addEventListener("mouseup",    touchend,   false);
    document.body.addEventListener("touchstart", touchstart, false);
    document.body.addEventListener("touchend",   touchend,   false);

    function touchstart(event) {
        var diff = Date.now() - lastTouchEnd;

        if (diff <= 16) { // 16ms
            alert("I guess you are right: " + diff + " ms");
        } else {
            console.log(diff);
        }
    }
    function touchend(event) {
        lastTouchEnd = Date.now();
    }
};
</script>
</head><body>
    <p>tap/click time logger</p>
    <p>tap me!</p>
</body></html>
	<!DOCTYPE html><html><head><meta charset="utf-8">
	<script>
	window.onload = function() {
	var lastTouchEnd = 0; // last touchend time

	document.body.addEventListener("mousedown", touchstart, false);
	document.body.addEventListener("mouseup", touchend, false);
	document.body.addEventListener("touchstart", touchstart, false);
	document.body.addEventListener("touchend", touchend, false);

	function touchstart(event) {
	var diff = Date.now() - lastTouchEnd;

	if (diff <= 16) { // 16ms
	alert("I guess you are right: " + diff + " ms");
	} else {
	console.log(diff);
	}
	}
	function touchend(event) {
	lastTouchEnd = Date.now();
	}
	};
	</script>
	</head><body>
	<p>tap/click time logger</p>
	<p>tap me!</p>
	</body></html>