setInterval JavaScript method to call function recursively at time interval

<script language=javascript>

function to_start(){
tm=window.setInterval('disp()',1000);
}

function disp(){
document.getElementById('n1').innerHTML += ' plus2net.com ';
}
</script>

Demo of SetInterval() to print at an interval of 1 second.
In JavaScript we can call recursively any function at a particular interval by using setInterval() method of window object.
Here is the syntax

setInteval('function_name', time-millisecond, lang);

In above code function_name is the name of the function we want to execute at an interval of time-millisecond ( time in mill second ) , optional element lang we can specify the code we want to execute.

Let us start displaying current (changing ) time by using toTimeString() function. We will keep display part inside a function disp() . Using setInterval method we will call disp() function in every one second ( 1000 millisecond ) .
Demo of SetInterval() : Real time clock refreshing in 1 second.
Here is the code.

<html>
<head>
<title>Demo of SetInterval JavaScript function</title>

<script language=javascript>

function to_start(){
tm=window.setInterval('disp()',1000);
}

function disp(){
var dt= new Date();
var str=dt.toTimeString()
document.getElementById('n1').value=str;
}
</script>

</head>
<body >

<input type=text id=n1 >
<input type="button" name="btn" value="Start" onclick="to_start()";>
</body>
</html>

Above code we will only display the change in time but we can't stop it.
setTimeout() Stopwatch script using setInterval() Stop setInterval() method by window.clearInterval()

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sathya	26-03-2013
how to get a alert message with the reference of table data id using javascript? Note: if i clicked one row and the alert box will be triggered with that row information... can u please help me???? for this question? i need soon back

setInterval(): calls at specified intervals (in milliseconds)

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