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

Use the code by the user @useless-code above (https://stackoverflow.com/a/21016088/327386) to generate the file. If you want to download the file automatically, pass the textFile that was just generated to this function:

var downloadFile = function downloadURL(url) {
    var hiddenIFrameID = 'hiddenDownloader',
    iframe = document.getElementById(hiddenIFrameID);
    if (iframe === null) {
        iframe = document.createElement('iframe');
        iframe.id = hiddenIFrameID;
        iframe.style.display = 'none';
        document.body.appendChild(iframe);
    }
    iframe.src = url;
}