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I am new to Javascript. Please tell me about setTimeout and setInterval methods.

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 Settimeout Method: In this method, a function is executed exactly when the specified waiting time is over. This is a method of HTML DOM window object. 

Syntax: window.setTimeout(function, milliseconds);

The first parameter is an executable function.

The second parameter is the time in millisecond which indicates that after a certain period of time the request will be processed. 

Example:

<button onclick="setTimeout(myFunction, 4000)">Click me</button>

<script>

function myFunction() {

  alert('This is Intellipaat');

}

</script>

SetInterval Method: This method repeats a specific function after every given time interval. 

Syntax: window.setInterval(function, milliseconds);

 First parameter is a function which needs to be executed.

Second parameter is a time interval in milliseconds where the specific function will be executed after a given time. 

Code:

var myVar = setInterval(myTimer, 2000);

function myTimer() {

  var a = new Date();

  document.getElementById("demo").innerHTML = a.toLocaleTimeString();

}

Want to become an expert in web technology, check out the Web Developer Certification courses offered by Intellipaat. 

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