JavaScript onfocusin Event

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JavaScript onfocusin Event

The onfocusin event occurs when an element is about to get focus.

Note: Unlike onfocus event, the onfocusin event will bubble, i.e., The element with onfocusin event will be affected when its child element gets focus.

onfocusin Event as Attribute


HTML Online Editor
<!DOCTYPE html> <html> <body> <p>Type your Name</p> <input type="text" onfocusin="myFunction(this)"> <script> function myFunction(x){ = "red"; } </script> </body> </html>


As Attribute

<element onfocusin = "JavaScript">

Using Event Listener

object.addEventListener("focusin" , myScript);

Using addEventListener() Method

Note: The addEventListener() method is not supported in Internet Explorer 8 and below.


HTML Online Editor
<!DOCTYPE html> <html> <body> <p>Type your Name</p> <input type="text"> <script> var x = document.getElementsByTagName("input")[0]; function myFunction() { = "red"; } x.addEventListener("focusin", myFunction); </script> </body> </html>

onfocus vs onfocusin

Check out the difference between onfocus vs onfocusin in javascript.


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