The performance property returns a Performance object, which can be further used to gather performance information about the current document.
Syntax:
var per = window.performance
Return Value: It returns a performance object.
Example: This example shows how to get the performance object of the document using this property.
HTML
<!DOCTYPE HTML> <html>
<body style="text-align:center;">
<h1 style="color:green;">
GeeksforGeeks
</h1>
<p>
HTML | window performance property
</p>
<button onclick="Geeks()">
Click Here
</button>
<script>
function Geeks() {
console.log(window.performance);
}
</script>
</body>
</html>
|
Output:
-
Before Clicking the Button:
-
After Clicking the Button: In the console, the performance object can be seen.
Supported Browsers:
- Google Chrome
- Edge
- Firefox
- Safari
- Opera
- Internet Explorer