Text passed to window.prompt gets replaced with "..."
javascript
Solution
The character limit for the prompt seems to be the reason like MVP said. There is a pretty better workaround for it. Use a `textarea` with the emails text as its content and use the `select` function to select the whole text in the textarea like you did with the prompt.
Example:
$('#container').append('To copy emails to clipboard, press: Ctrl+C, then Enter <br />
<textarea id="emailsToCopy">'+emailsToCopy+'</textarea>');
$('#emailsToCopy').select().focus();
Assuming, you use jquery. If not you could use `select` function on the textarea DOM element.
var emailsTxtArea = document.getElementById(emailsToCopy);
emailsTxtArea.select();
emailsTxtArea.focus();
Problem
I want to allow users to copy a large number of email addresses to their clipboard. This answer seemed like the most reliable way to do that: How do I copy to the clipboard in JavaScript? However, when testing I found that `window.prompt()` always replaces part of one of the emails with `...`. Here is test data: ``` test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com; test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com; ``` Here is example code with the following test data: ``` window.prompt ("To copy emails to clipboard, press: Ctrl+C, then Enter", "test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com; test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;test@test.com; test@test.com;test@test.com;"); ``` JSFiddle: http://jsfiddle.net/MkYDz/ Click on the link above, copy and paste the text to a text editor, and you will see that one of the emails (about halfway) becomes: ``` test@...om ``` Why is this happening?