How to display an image from a file input? [duplicate]

Answer 1

function myFunction() {

    var file = document.getElementById('file').files[0];
    var reader  = new FileReader();
    // it's onload event and you forgot (parameters)
    reader.onload = function(e)  {
        var image = document.createElement("img");
        // the result image data
        image.src = e.target.result;
        document.body.appendChild(image);
     }
     // you have to declare the file loading
     reader.readAsDataURL(file);
 }

http://jsfiddle.net/Bwj2D/11/ working example