browser js let user download file code example
Example 1: javascript write to file and download
function download(filename, text) {
var element = document.createElement('a');
element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
element.setAttribute('download', filename);
element.style.display = 'none';
document.body.appendChild(element);
element.click();
document.body.removeChild(element);
}
download("hello.txt","This is the content of my file :)");
Example 2: js download file from webserver
<iframe id="download_iframe" style="display:none;"></iframe>
<script>
document.getElementById('download_iframe').src = "/example/example.txt";
</script>