Event delegation: using the focusin event: - Javascript DOM Event

Javascript examples for DOM Event:onfocusin

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Description

Event delegation: using the focusin event:

Demo Code

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<!DOCTYPE html>
<html>
<body>

<form id="myForm">
  <input type="text" id="myInput">
</form>//from   w w  w .j a v  a  2  s . c o  m

<script>
var x = document.getElementById("myForm");
x.addEventListener("focusin", myFocusFunction);
x.addEventListener("focusout", myBlurFunction);

function myFocusFunction() {
    document.getElementById("myInput").style.backgroundColor = "yellow";
}

function myBlurFunction() {
    document.getElementById("myInput").style.backgroundColor = "";
}
</script>

</body>
</html>

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