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JavaScript setTimeout Function Example

Aug 28, 2013
Introduction

Here I will explain how to use JavaScript setTimeout function with example. JavaScript setTimeout() function is used to execute functions at regular intervals of time. Suppose if we want to execute one JavaScript function for every 10 seconds or for a specific time we can use JavaScript setTimeout function to achieve this functionalit. 

Description:

In previous articles I explained Start and Stop timer in JavaScript, Show user current location on Google map, Regular expression to validate file upload extension and many articles relating to jQuery, JavaScript. Now I will explain how to use JavaScript setTimeout() function with example. 
JavaScript setTimeout() function is same as jQuery setInterval() function . We can use setTimeout function in different ways like as shown below
Method 1:

setTimeout(yourfunction(), timeinterval);

function yourfunction() {
// your code here
}
Method 2

setTimeout(function(){// your code here
}, timeinterval);
For complete example check below code


<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>JavaScript display current time on webpage</title>
<script type="text/javascript">
function ShowCurrentTime() {
var dt = new Date();
document.getElementById("lblTime").innerHTML = dt.toLocaleTimeString();
setTimeout("ShowCurrentTime()", 1000); // Here 1000(milliseconds) means one 1 Sec
}
</script>
</head>
<body onload="ShowCurrentTime()">
<div>
JavaScript Display current time second by second:
<label id="lblTime" style=" font-weight:bold"></label>
</div>
</body>
</html>
Live Demo
Check below time for live demo it will run for every one second
JavaScript Display current time second by second:

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2 comments :

suresh said...

hai suresh
i developed three tier tier architecture web application using using c sharp asp.net and sql 2008

i want to set session state time out in web config...
i set session time web config
but its unexpected logout every frequent times
how to solve it please reply me to this mail id..

email id: sureshemanip@gmail.com

arka roy said...

how to validate firstname, emailid in javascript??

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