How can I copy to clipboard in HTML5 without using flash?

Question

I want to use a copy-to-clipboard function in HTML5, but without using flash. Is it possible? How?

I tried to implement a copy-to-clipboad function with JavaScript,

Answer 1

If you don't care that the contents of the text field will be selected prior to copy, here is two-line solution that works at least in Chrome 56 and Edge, but I bet it works in other browsers as well.

function clickListener() {
  document.getElementById('password').select();
  document.execCommand('copy');
}

document.getElementById('copy_btn').addEventListener('click', clickListener);

Copy

https://jsfiddle.net/uwd0rm08/