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HTML DOM Window performance Property

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  • Last Updated : 23 Jul, 2020

The performance property returns a Performance object, which can be further used to gather performance information about the current document.


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.


<body style="text-align:center;">
    <h1 style="color:green;">
        HTML | window performance property
    <button onclick="Geeks()">
        Click Here
        function Geeks() {


  • 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

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