how can i use confirm() then refresh the page? [duplicate]

Was not able to find a location.refresh() method

Try location.reload() instead

In general when some piece of code isn't working, try to isolate specifically what isn't working, a good way to do that in the future is to use console.log instead and see if you got a result. If you did, then try the other function. If it didn't work, then it's the problem

I highly dislike the use of PHP for stuff like this, but if you want to use it, here is something I would change.

You fire an onclick and a href simultaneously, but actually you want to do it one after the other, because if you don't, you are going to run into a race condition.

Also, as someone else already pointed out, there is no refresh method. Use reload.

Here is a solution to that problem:

<a target="_blank" onclick=" asd()" hclass="btn success">Delete</a> <script> const url = <?=json_encode(url('/delete?id=' . $row['product_id']))?>; function asd() { var a = confirm('Are you sure you want to delete this product'); if (a == 1) { // Make ajax request in js to make it async and do the refresh AFTER it has succeeded var xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { // refresh on success location.refresh(); } }; xhttp.open("GET", url, true); xhttp.send(); return 1; } else { return 0; } } </script> 

If you want to improve your project further and not only bugfix it, here are a few tips:

• Make the function names meaningful
• Use PHP for the backend, if you like, but avoid mixing it with the template code (HTML, JS, CSS)
• Refactor your backend to use the correct REST HTTP functions (DELETE, PUT, PATCH, ...)
• Install a library for the ajax instead of using the standard JS XMLHttpRequest. Try Axios or jQuery.