Download a string as .txt file in React

Question

I have a string which needs to be downloaded in a txt file when click on a button. How can this be implemented using React?

Answer 1

Here's a working example. Enter the text in the input field and click Download txt, this will download a txt with the contents you entered in the input.

This solution creates a new Blob object of the text MIME type and attaches it to the href of a temporary anchor (<a>) element which is then triggered programmatically.

A Blob object represents a file-like object of immutable, raw data. Blobs represent data that isn't necessarily in a JavaScript-native format.

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class MyApp extends React.Component {    downloadTxtFile = () => {      const element = document.createElement("a");      const file = new Blob([document.getElementById('myInput').value], {type: 'text/plain'});      element.href = URL.createObjectURL(file);      element.download = "myFile.txt";      document.body.appendChild(element); // Required for this to work in FireFox      element.click();    }        render() {      return (        <div>          <input id="myInput" />          <button onClick={this.downloadTxtFile}>Download txt</button>        </div>      );    }  }    ReactDOM.render(<MyApp />, document.getElementById("myApp"));

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>  <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>  <div id="myApp"></div>

This answer was derived from thanhpk's post.