javascript copy code example

Example 1: javascript copy to clipboard

<head><script>
function copyToCliBoard() {
  var copyText = document.getElementById("myInput");
  copyText.select();
  copyText.setSelectionRange(0, 99999); /* For mobile devices */
  document.execCommand("copy");
  alert("Copied the text: " + copyText.value);
}
</script></head>

<body>
<input type="text" value="Hello World" id="myInput">
<button onclick="copyToCliBoard()">Copy text</button>
</body>

Example 2: javascript copy to clipboard

function copyToClipboard(text) {
  var input = document.body.appendChild(document.createElement("input"));
  input.value = text;
  input.focus();
  input.select();
  document.execCommand('copy');
  input.parentNode.removeChild(input);
}

Example 3: copy object javascript

// es6
const obj = {name: 'john', surname: 'smith'};
const objCopy = {...obj};

Example 4: copy to clipboard javascript

// Since Async Clipboard API is not supported for all browser!
function copyTextToClipboard(text) {
  var textArea = document.createElement("textarea");
  textArea.value = text
  document.body.appendChild(textArea);
  textArea.focus();
  textArea.select();

  try {
    var successful = document.execCommand('copy');
    var msg = successful ? 'successful' : 'unsuccessful';
    console.log('Copying text command was ' + msg);
  } catch (err) {
    console.log('Oops, unable to copy');
  }

  document.body.removeChild(textArea);
}

Example 5: copy object javascript

var x = {key: 'value'}
var y = JSON.parse(JSON.stringify(x))

//this method actually creates a reference-free version of the object, unlike the other methods
//If you do not use Dates, functions, undefined, regExp or Infinity within your object

Example 6: js copy to clipboard

function textToClipboard (text) {
    var dummy = document.createElement("textarea");
    document.body.appendChild(dummy);
    dummy.value = text;
    dummy.select();
    document.execCommand("copy");
    document.body.removeChild(dummy);
}