how to make a button that paste text in a textbox html
snippet in html

javascript copy to clipboard

user7654

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 140px;
  background-color: #555;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 5px;
  position: absolute;
  z-index: 1;
  bottom: 150%;
  left: 50%;
  margin-left: -75px;
  opacity: 0;
  transition: opacity 0.3s;
}

.tooltip .tooltiptext::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: #555 transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}
</style>
</head>
<body>

<p>Click on the button to copy the text from the text field. Try to paste the text (e.g. ctrl+v) afterwards in a different window, to see the effect.</p>

<input type="text" value="Hello World" id="myInput">

<div class="tooltip">
<button onclick="myFunction()" onmouseout="outFunc()">
  <span class="tooltiptext" id="myTooltip">Copy to clipboard</span>
  Copy text
  </button>
</div>

<p>The document.execCommand() method is not supported in IE8 and earlier.</p>

<script>
function myFunction() {
  var copyText = document.getElementById("myInput");
  copyText.select();
  copyText.setSelectionRange(0, 99999);
  document.execCommand("copy");
  
  var tooltip = document.getElementById("myTooltip");
  tooltip.innerHTML = "Copied: " + copyText.value;
}

function outFunc() {
  var tooltip = document.getElementById("myTooltip");
  tooltip.innerHTML = "Copy to clipboard";
}
</script>

</body>
</html>

how to make a button that paste text in a textbox html

user1844

<!DOCTYPE html>
<html>
 <head>
   <script>
     function paste() {
            var pasteText = document.querySelector("#text");
            pasteText.focus();
            document.execCommand("paste");

            pasteText.value = pasteText.value + pasteText.value;
        }
   </script>
  </head>
  <body>
    <input id="text">
    <button onclick="paste()">Paste</button>
   </body>

copy text to clipboard javascript

user8111

<script>
function copyToClipboard(element) {
  var $temp = $("<input>");
  $("body").append($temp);
  $temp.val($(element).text()).select();
  document.execCommand("copy");
  $temp.remove();
}
</script>

<p id="text">Hello</p>
<button onclick="copyToClipboard('#text')"></button>