jsを使用してjsonデータをダウンロードする

json

var data=[
{
  text:"  1"
},
{
  text:"  2"
}
]

saveJSON(data,"test.json");

js

  function saveJSON(data, filename) {
      if (!data) {
        alert('data is null');
        return;
      }
      if (!filename) {
        filename = 'json.json'
      }
      if (typeof data === 'object') {
        data = JSON.stringify(data, undefined, 4)
      }
      var blob = new Blob([data], { type: 'text/json' });
      var e = document.createEvent('MouseEvents');
      var a = document.createElement('a');
      a.download = filename;
      a.href = window.URL.createObjectURL(blob);
      a.dataset.downloadurl = ['text/json', a.download, a.href].join(':');
      e.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
      a.dispatchEvent(e);
    }