JavaScript_document.location-setInterval/1.html at master · katerina-n/JavaScript_document.location-setInterval · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>first</title>
</head>
<body>
<script>
    window.onload=function() {
        var count = 0;
        var x=0;
        var y=0;
var time;
       document.getElementById("star").onclick=function() {

          time=  setInterval(function(){

              document.getElementById("out").innerHTML=Math.floor(count/1000)+" сек "+count%1000+" миллисек";
          count++;
          }, 1);
        }
        document.getElementById("paus").onclick=function() {
            clearInterval(time);
        }
        document.getElementById("sto").onclick=function() {

            clearInterval(time);
            document.getElementById("out").innerHTML=0;
            count=0;
        }
    }
    </script>
<div style="background-color: darkslategray; width: 20%; height: 40%">
<p id="out" style="color: azure;text-align: center "><br></p>
<input id="star" type="button" value="start" >
<input id="paus" type="button" value="pause" >
<input id="sto" type="button" value="stop" >
</div>
</body>
</html>