Click button copy to clipboard using jQuery

 

// html code here 

<div class="row">
            <div class="col-md-12 col-sm-12 col-xs-12">
                <br/>
                <h3 class="text-center">Capture Feedback</h3>
                <br/>
                <div class="col-md-8 col-sm-8 col-xs-12 col-md-offset-2 col-sm-offset-2">
                    <div class="col-md-8 col-sm-8 col-xs-12">
                        <input type="text" class="custom-url" placeholder="company rating link" value="https://www.google.co.in/" name="" id="copyTarget">
                    </div>
                    <div class="col-md-4 col-sm-4 col-xs-12">
                        <button class="custom-url color-red" id="copyButton">Copy URL</button>
                    </div>

                </div>
            </div>

        </div>

// Script code here 

<script type="text/javascript">
 document.getElementById("copyButton").addEventListener("click", function() {
    copyToClipboard(document.getElementById("copyTarget"));
    alert("Text copied");
});

function copyToClipboard(elem) {
 // create hidden text element, if it doesn't already exist
    var targetId = "_hiddenCopyText_";
    var isInput = elem.tagName === "INPUT" || elem.tagName === "TEXTAREA";
    var origSelectionStart, origSelectionEnd;
    if (isInput) {
        // can just use the original source element for the selection and copy
        target = elem;
        origSelectionStart = elem.selectionStart;
        origSelectionEnd = elem.selectionEnd;
    } else {
        // must use a temporary form element for the selection and copy
        target = document.getElementById(targetId);
        if (!target) {
            var target = document.createElement("textarea");
            target.style.position = "absolute";
            target.style.left = "-9999px";
            target.style.top = "0";
            target.id = targetId;
            document.body.appendChild(target);
        }
        target.textContent = elem.textContent;
    }
    // select the content
    var currentFocus = document.activeElement;
    target.focus();
    target.setSelectionRange(0, target.value.length);
   
    // copy the selection
    var succeed;
    try {
     succeed = document.execCommand("copy");
    } catch(e) {
        succeed = false;
    }
    // restore original focus
    if (currentFocus && typeof currentFocus.focus === "function") {
        currentFocus.focus();
    }
   
    if (isInput) {
        // restore prior selection
        elem.setSelectionRange(origSelectionStart, origSelectionEnd);
    } else {
        // clear temporary content
        target.textContent = "";
    }
    return succeed;
}
</script>