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HTML DOM PopStateEvent Object
The HTML DOM popStateEvent object is an event handler for the popstate event which occurs when window’s history changes.
Property of PopStateEvent
| Property | Explanation |
|---|---|
| state | It returns an object that represents a copy of the history entries. |
Example
Let us see an example of HTML DOM popStateEvent Object −
<!DOCTYPE html>
<html>
<head>
<style>
html{
height:100%;
}
body{
text-align:center;
color:#fff;
background: linear-gradient(62deg, #FBAB7E 0%, #F7CE68 100%) center/cover no-repeat;
height:100%;
}
p{
font-size:1.2rem;
}
.btn{
background:#0197F6;
border:none;
height:2rem;
border-radius:2px;
width:35%;
margin:2rem auto;
display:block;
color:#fff;
outline:none;
cursor:pointer;
}
</style>
</head>
<body>
<h1>DOM PopStateEvent Event Demo</h1>
<button onclick="display()" class="btn">Click Me</button>
<script>
function display(){
window.onpopstate = function(event) {
alert("location: " + document.location +
", state: " + JSON.stringify(event.state));
};
history.pushState({
page: 1
}, "title home", "?page=home");
history.pushState({
page: 2
}, "title about", "?page=about");
history.replaceState({
page: 3
}, "title contact", "?page=contact");
history.back();
history.back();
}
</script>
</body>
</html>Output
This will produce the following output −
Click on “Click Me” button to understand how PopStateEvent Object works −
Click “Ok” −
Updated on: 30-Jul-2019
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