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John Peter
Pune, Maharashtra, India
How to use setInterval and clearInterval methods in javascript with Example
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SetInterval and clearInterval 
setInterval and clearInterval are global functions of javascript. setInterval method takes call back method and millseconds to call method given milliseconds once.
Example 
function my_method(){
   document.write(Math.random()*1000);
}

/* To start timer using setInterval */
var timer = setInterval("my_method()",3000);

/* To stop timer using clearInterval */
clearInterval(timer);
Demo & Output 
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