In reactJS, how to copy text to clipboard?

Question

I\'m using ReactJS and when a user clicks a link I want to copy some text to the clipboard.

I am using Chrome 52 and I do not need to support any other browsers.

Answer 1

I personally don't see the need for a library for this. Looking at http://caniuse.com/#feat=clipboard it's pretty widely supported now, however you can still do things like checking to see if the functionality exists in the current client and simply hide the copy button if it doesn't.

import React from 'react';

class CopyExample extends React.Component {

  constructor(props) {
    super(props);

    this.state = { copySuccess: '' }
  }

  copyToClipboard = (e) => {
    this.textArea.select();
    document.execCommand('copy');
    // This is just personal preference.
    // I prefer to not show the whole text area selected.
    e.target.focus();
    this.setState({ copySuccess: 'Copied!' });
  };

  render() {
    return (
      

        {
         /* Logical shortcut for only displaying the 
            button if the copy command exists */
         document.queryCommandSupported('copy') &&
          

            Copy 
            {this.state.copySuccess}
          
        }
        

           this.textArea = textarea}
            value='Some text to copy'
          />
        </form>
      </div>
    );
  }

}
    
export default CopyExample;
</code></pre>
<p><strong>Update: Rewritten using React Hooks in React 16.7.0-alpha.0</strong></p>
<pre><code>import React, { useRef, useState } from 'react';

export default function CopyExample() {

  const [copySuccess, setCopySuccess] = useState('');
  const textAreaRef = useRef(null);

  function copyToClipboard(e) {
    textAreaRef.current.select();
    document.execCommand('copy');
    // This is just personal preference.
    // I prefer to not show the whole text area selected.
    e.target.focus();
    setCopySuccess('Copied!');
  };

  return (
    <div>
      {
       /* Logical shortcut for only displaying the 
          button if the copy command exists */
       document.queryCommandSupported('copy') &&
        <div>
          <button onClick={copyToClipboard}>Copy</button> 
          {copySuccess}
        </div>
      }
      <form>
        <textarea
          ref={textAreaRef}
          value='Some text to copy'
        />
      </form>
    </div>
  );
}
</code></pre>
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