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How to use jQuery setTimeout function and setInterval function

setTimeout: This method is used to delay execution of some code. It is used to execute a certain function or jQuery code at the end of given time. It takes the time in milliseconds.

Syntax of setTimeout:

setTimeout(function () {
    // Do something after given time
}, Time in millisecond);

For example you want to hide a div, 5 seconds after the page loads, then you can do it as:

<div id="exampleDiv">This is example div for set time out </div>

setTimeout(function () {
}, 5000);

This script will hide the “exampleDiv" after 5 seconds, Check live demo on jsfiddle.

setInterval: This method repeats itself at regular time that is passed to this function, we can compare this method to an alarm clock that strikes repeatedly after a particular interval. It also takes the time in milliseconds.

Syntax of setInterval:

setInterval(function () {
    // Do something per given time
}, Time in millisecond);

For example we want to multiply a number by 2, every second:

<div id="testInterval">1</div>


setInterval(function () {
    $('#testInterval').text(parseInt($('#testInterval').text(), 10) * 2);
}, 1000);

Default value in div is ‘1’ which is string so we’ll convert it into integer value with the help of parseInt() method, and it’ll be multiplied by 2 every second, Check live demo on jsfiddle.


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