HTML | DOM PageTransitionEvent
The PageTrasitionEvent occurs during the time a document is being loaded or unloaded.
Syntax:
PageTransitionEvent.persisted
Property Values:
- persisted: Returns boolean value whether the webpage was cached or not.
Return Value: This property returns True if the document is loaded from a cache or not otherwise it returns False. Example:
html
<!DOCTYPE html><html><body bgcolor="green" onpageshow="myFunction(event)"> <center> <h1 style="color:white;">w3wiki</h1> <p id="demo" style="color:white;"></p> </center> <script> function myFunction(event) { // Check page was cached by the browser // or not. if (event.persisted) { alert("Cached by Browser"); } else { alert("NOT cached by Browser"); } } </script></body></html> |
Output:
Supported Browsers:
- Google Chrome 4
- Firefox 11
- Edge 12
- Safari 5
- Opera 15