javascript count up timer start stop code example

Example 1: javascript get clock time in auto counter up

<html>
<head>
<title>(Type a title for your page here)</title>
<script type="text/javascript"> 
function display_c(){
var refresh=1000; // Refresh rate in milli seconds
mytime=setTimeout('display_ct()',refresh)
}

function display_ct() {
var x = new Date()
document.getElementById('ct').innerHTML = x;
display_c();
 }
</script>
</head>

<body onload=display_ct();>
<span id='ct' ></span>

</body>
</html>

Example 2: onclick timer javascript

document.getElementById("gameStart").addEventListener("click", function(){
    var timeleft = 15;

    var downloadTimer = setInterval(function function1(){
    document.getElementById("countdown").innerHTML = timeleft + 
    " "+"seconds remaining";

    timeleft -= 1;
    if(timeleft <= 0){
        clearInterval(downloadTimer);
        document.getElementById("countdown").innerHTML = "Time is up!"
    }
    }, 1000);

    console.log(countdown);
});

Example 3: javascript get clock time in auto counter up

function display_ct() {
var x = new Date()
var x1=x.getMonth() + 1+ "/" + x.getDate() + "/" + x.getYear(); 
x1 = x1 + " - " +  x.getHours( )+ ":" +  x.getMinutes() + ":" +  x.getSeconds();
document.getElementById('ct').innerHTML = x1;
display_c();
 }

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