Window: pageshow event
The pageshow
event is sent to a Window
when the browser displays the window's document due to navigation.
This includes:
- Initially loading the page
- Navigating to the page from another page in the same window or tab
- Restoring a frozen page on mobile OSes
- Returning to the page using the browser's forward or back buttons
Note: During the initial page load, the pageshow
event fires after the load
event.
Bubbles | No |
---|---|
Cancelable | No |
Interface | PageTransitionEvent |
Event handler property | onpageshow |
Examples
This example sets up event handlers for events listed in the array events
. The handler, eventLogger()
, logs the type of event that occurred to the console, and includes the value of the persisted
flag on pageshow
and pagehide
events.
JavaScript
const events = [
"pagehide", "pageshow",
"unload", "load"
];
const eventLogger = event => {
switch (event.type) {
case "pagehide":
case "pageshow":
let isPersisted = event.persisted ? "persisted" : "not persisted";
console.log('Event:', event.type, '-', isPersisted);
break;
default:
console.log('Event:', event.type);
break;
}
};
events.forEach(eventName =>
window.addEventListener(eventName, eventLogger)
);
HTML
<p>Open the console and watch the output as you navigate to and from
this page. Try loading new pages into this tab, then navigating forward
and backward through history, noting the events' output to the log.</p>
Results
Specifications
Specification |
---|
HTML Standard # event-pageshow |
Browser compatibility
BCD tables only load in the browser