[removed] Create and save file [duplicate]

Answer 1

function download(text, name, type) {
  var a = document.getElementById("a");
  var file = new Blob([text], {type: type});
  a.href = URL.createObjectURL(file);
  a.download = name;
}

click here to download your file
Create file

I think this can work with json files too if you change the mime type.