link that copies to clipboard code example
Example 1: js copy text to clipboard
function copy() {
var copyText = document.querySelector("#input");
copyText.select();
document.execCommand("copy");
}
document.querySelector("#copy").addEventListener("click", copy);
Example 2: copy text on button click in jquery
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<p id="p1">P1: I am paragraph 1</p>
<p id="p2">P2: I am a second paragraph</p>
<button onclick="copyToClipboard('#p1')">Copy P1</button>
<button onclick="copyToClipboard('#p2')">Copy P2</button>
<br/><br/><input type="text" placeholder="Paste here for test" />