Client side file creation and download

Question

We are using fusioncharts and it has the ability using javascript on the client side to export csv data, we want to be able to take that data and create a file on the fly in

Answer 1

Since Marc's answer was (stupidly) converted to a comment, and none of the other answers actually answer the question, here's the answer:

Click me to DL something

This was derived from the answer Marc referenced, which is useful in situations where you're not specifically clicking on a link tag: https://stackoverflow.com/a/3665147/279255

// must be called in a click handler or some other user action
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);
}