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

Question

I would like to choose a file and display the image on the browser. I tried inserting the direct image path and it worked.

The problem now is, how can I display the image from the <input type=file> ?

Here is what my code looks like:

function myFunction() {
    var file = document.getElementById('file').files[0];
    var reader = new FileReader();

    reader.onloadend = function {
        var image = document.createElement("img");
        image.src = "reader"
        image.height = 200;
        image.width = 200;

        document.body.appendChild(image);
    }
}

<input type=file name=filename id=file>
<button type=button onclick='myFunction()'>Display</button>

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