Home > Article > Web Front-end > JavaScript implements clock

JavaScript implements clock

高洛峰Original: 2016-11-26 11:31:331335browse

[html]

<html> 
<head> 
<script type="text/javascript"> 
function startTime() 
{ 
var today=new Date() 
var h=today.getHours() 
var m=today.getMinutes() 
var s=today.getSeconds() 
// add a zero in front of numbers<10 
m=checkTime(m) 
s=checkTime(s) 
document.getElementById(&#39;txt&#39;).innerHTML=h+":"+m+":"+s 
t=setTimeout(&#39;startTime()&#39;,500) 
} 
 
function checkTime(i) 
{ 
if (i<10)  
  {i="0" + i} 
  return i 
} 
</script> 
</head> 
 
<body onload="startTime()"> 
<div id="txt"></div> 
</body> 
</html>

Statement：

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Previous article：Object-oriented design in JavaScriptNext article：Object-oriented design in JavaScript

See more

JavaScript implements clock

Related articles