What is the popstate event in JavaScript?

What is the popstate event in JavaScript?

The popstate event is triggered when the active history entry changes. It allows you to respond to changes in the browser's history.

How do I use the popstate event in my web application?

You can use the popstate event by adding an event listener to the window object. For example: window.addEventListener('popstate', function(event) { /* your code */ });.

Can you give me an example of when the popstate event is useful?

Sure! It's useful for single-page applications (SPAs) where you want to update the UI based on the user's navigation without reloading the page.

What should I be careful about when using popstate?

Be cautious with the state object you pass to history.pushState() or history.replaceState(), as it can affect how the popstate event behaves.