How to Edit a JavaScript Alert Box Title

How to edit a JavaScript alert box title?

No, you can't.

It's a security/anti-phishing feature.

Can we edit title of windows alert box being used in Google Apps script?

The title on an alert can't be changed due to security reasons, to let the user know who is sending it and to avoid possible phishing.

You could use a modal box to display the message you want. As an example:

HTML:

<!DOCTYPE html>
<html>

<head>
  <base target="_top">
</head>

<body>
  <button id="myBtn">Open Modal</button>
  <div style="display: none" id="myModal" class="modal">
    <div class="modal-content">
      <span class="close">×</span>
      <p>Some text in the Modal..</p>
    </div>
  </div>
</body>
<script>
var modal = document.getElementById("myModal");
var btn = document.getElementById("myBtn");
var span = document.getElementsByClassName("close")[0];
btn.onclick = function() {
  modal.style.display = "block";
}
span.onclick = function() {
  modal.style.display = "none";
}
window.onclick = function(event) {
  if (event.target == modal) {
    modal.style.display = "none";
  }
}
</script>

</html>

You can then style the modal as an alert using CSS.

Change the title of the alert baox in JS

Are you looking for a dialog box? Try http://jqueryui.com/dialog/

Change Title of Javascript Alert

You can't, this is determined by the browser, for the user's safety and security. For example you can't make it say "Virus detected" with a message of "Would you like to quarantine it now?"...at least not as an alert().

There are plenty of JavaScript Modal Dialogs out there though, that are far more customizable than alert().

How can I change the title message of an alert box in JavaScript?

This can not be done using javascript. But this can be done using jQuery. May be this url can help u.

http://labs.abeautifulsite.net/projects/js/jquery/alerts/demo/

How to change the style of alert box?

The alert box is a system object, and not subject to CSS. To do this style of thing you would need to create an HTML element and mimic the alert() functionality. The jQuery UI Dialogue does a lot of the work for you, working basically as I have described: Link.

<!doctype html><html lang="en"><head>  <meta charset="utf-8">  <meta name="viewport" content="width=device-width, initial-scale=1">  <title>jQuery UI Dialog - Default functionality</title>  <link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">  <link rel="stylesheet" href="/resources/demos/style.css">  <script src="https://code.jquery.com/jquery-1.12.4.js"></script>  <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>  <script>  $( function() {    $( "#dialog" ).dialog();  } );  </script></head><body> <div id="dialog" title="Basic dialog">  <p>This is the default dialog which is useful for displaying information. The dialog window can be moved, resized and closed with the 'x' icon.</p></div>  </body></html>

How to Edit a JavaScript Alert Box Title