Copy URL from Input

copy.html

<input type="url" id="copyLinkInput" value="example.com" />
<button id="copyLinkTrigger">Copy link</button>

<script>
    const copyLinkTrigger = document.getElementById("copyLinkTrigger");
    const linkInputElement = document.getElementById("copyLinkInput");

    copyLinkTrigger.addEventListener("click", event => {
        event.srcElement.textContent = "Copied!";
        linkInputElement.select();
        document.execCommand("copy");
    });
</script>