How can I create an online JavaScript editor? [closed]

Answer 1

I think you can do something like this:

HTML

run

JavaScript

function update()
{
    var frame = $('#output').get(0);
    var frameDoc = frame.contentDocument || frame.contentWindow.document;
    var w = document.getElementById("code").value;
    document.getElementById('output').contentWindow.document.write(w);
}