CODEWITHSUNDEEP
javascript
lf80
lf80

Reputation: 483

Copy and paste text from JavaScript

I'm trying to figure out, how to copy string and paste from JavaScript.

This code example:

function copyLink() {
  var copyText = document.getElementById("myInput");
  copyText.select();
  copyText.setSelectionRange(0, 99999);
  document.execCommand("copy");
}

Copies from myInput value:

  <input type="text" value="ttps://site.org/" id="myInput">

but I'm trying copy text from variable, not included to html value:

 <button onclick="copyText()">Copy text</button>

which is in .js to allow user copy/paste:

function copyText() {
   var text = "long text...";
   ...
}

It looks simple, but seems like I'm searching incorrectly, because I can't find the method.

Upvotes: 0

Views: 2082

Answers (3)

DenverCoder9
DenverCoder9

Reputation: 2514

You can use the Async Clipboard API:

async function copy() {
  try {
    await navigator.clipboard.writeText(input.value);
    console.log('Value copied to clipboard');
  } catch (err) {
    console.error('Failed to copy: ', err);
  }
}

For more details, please see this article.

Upvotes: 0

kshetline
kshetline

Reputation: 13672

As a quick fix, you could just stick the value you want to copy into an input field (even a hidden one), and copy the same way.

Here's a Codepen example: https://codepen.io/kshetline/pen/ExKwjjq?editors=1111

function copyText() {
  document.getElementById('hidden').value = new Date().toLocaleString();
  var copyText = document.getElementById('hidden');
  copyText.select();
  document.execCommand('copy');  
}
<input id="hidden" type="text" style="opacity: 0; position: absolute; top: -5em">
<button type="button" onclick="copyText()">Copy</button><br>
<label for="paste">Paste here: <input id="paste" type="text"></label>

There's a more advanced API for clipboard operations, however, that's described in this article: https://web.dev/async-clipboard/

Upvotes: 1

iguypouf
iguypouf

Reputation: 770

The best way is to create a Dummy element, copy the content and remove it from the dom.

// Create a dummy input
var dummy = document.createElement("input");

// Inject the content
dummy.value=copyText;

// Add it to the dom
document.body.appendChild(dummy);

// Select it
dummy.select();

// Copy the content
document.execCommand("copy");

// Clean the dom
document.body.removeChild(dummy);

Upvotes: 1

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