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Get element id through event object in JavaScript

Description

The following code shows how to get element id through event object.

Example


<!-- w  w  w.  j  a  va2  s  .  c o m-->
<!DOCTYPE HTML>
<html>
<body>
<button id="ab">java2s.com</button>
<button id="ae">A</button>
<button id="bb">B</button>
<button id="be">C</button>
<script>
var buttons = document.getElementsByTagName("button");
for (var i = 0; i < buttons.length; i++) {
buttons[i].onclick = handleButtonPress;
}
function handleButtonPress(e) {
if (e.target.id == "ab") {
document.writeln("java2s.com");
} else if (e.target.id == "be") {
document.writeln("C");
} else if (e.target.id == "bb") {
document.writeln("B");
} else {
document.writeln("else");
}
}
</script>
</body>
</html>

Click to view the demo

The code above generates the following result.

Get element id through event object in JavaScript
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