Execute a script when a element is shown as a context menu in HTML?

HTML Web Development Front End Technology

When a <menu> element is shown as a context menu in HTML, the onshow event fires.

Example

You can try to run the following code to execute a script when a <menu> element is displayed as a context menu −

<!Doctype html>
<html>
   <head>
      <title>HTML menu</title>
   </head>
   <body>
      <div style = "border:1px solid #000; padding:20px;" contextmenu = "clickmenu">
         <p>Right click inside here....</p>

         <menu type = "context" id = "clickmenu" onshow="display()">
            <menuitem label = "Tutorialspoint" onclick = ""></menuitem>
            <menuitem label = "Tutorials Library" onclick = ""></menuitem>
            <menuitem label = "Coding Ground" onclick = ""></menuitem>
            <menuitem label = "Q/A" onclick = ""></menuitem>
         </menu>

      </div>
      <script>
         function display() {
            alert("The context menu will be visible now.");
         }
      </script>
   </body>
</html>