how to post data with on load function with Jquery

Dear Experts,

I'd like to post the data to my php page. The below code works but I want to post it with on load function not with on click.
I want to post it when the page is loading.
How can I do that? thank you in advance.

I also want to remove the alert.

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $("button").click(function(){
        $.post("test-post.php",
        {
          name: "Donald Duck",
          city: "Duckburg0922"
        },
        function(data,status){
            alert("Data: " + data + "\nStatus: " + status);
        });
    });
});
</script>

Select allOpen in new window