Download a JSON in javascript

downloadJson.js

function downloadJson(data, filename = 'data.json') {
  const dataAtr =
    'data:text/json;charset=utf-8,' +
    encodeURIComponent(JSON.stringify(data));

  const el = window.document.createElement('a');
  el.setAttribute('href', dataAtr);
  el.setAttribute('download', filename);
  el.click();
}

// usage:
downloadJson({name: 'X'});