Is it possible to write data to file using only JavaScript?

Question

I want to Write Data to existing file using JavaScript. I don\'t want to print it on console. I want to Actually Write data to abc.txt. I read many answered que

Answer 1

In the case it is not possibile to use the new Blob solution, that is for sure the best solution in modern browser, it is still possible to use this simpler approach, that has a limit in the file size by the way:

function download() {
                var fileContents=JSON.stringify(jsonObject, null, 2);
                var fileName= "data.json";

                var pp = document.createElement('a');
                pp.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(fileContents));
                pp.setAttribute('download', fileName);
                pp.click();
            }
            setTimeout(function() {download()}, 500);

$('#download').on("click", function() {
  function download() {
    var jsonObject = {
      "name": "John",
      "age": 31,
      "city": "New York"
    };
    var fileContents = JSON.stringify(jsonObject, null, 2);
    var fileName = "data.json";

    var pp = document.createElement('a');
    pp.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(fileContents));
    pp.setAttribute('download', fileName);
    pp.click();
  }
  setTimeout(function() {
    download()
  }, 500);
});

Download me