echo '<button id="ZapisPrace">Save</button>
<script>
jQuery("#ZapisPrace").click(function($){
var data={
action: "addToDB",
info: "nomz"
};
jQuery.post(ajaxurl,data,function(response){
alert("Response was "+ response);
});
});
</script>';
add_action('wp_ajax_addToDB','pridajDoDB');
function pridajDoDB(){
echo '<script>console.log("AAA")</script>';
wp_die();
}