dom/file/getasdataurl-1.html

<!DOCTYPE HTML>
<title>File.getAsDataURL</title>
<style>
  textarea {
    width: 100%;
    height: 10em;
  }
</style>

<p><label>Select a file: <input type=file onchange="
  var data = this.files[0].getAsDataURL ();
  document.getElementsByTagName ('textarea')[0].value = data;
"></label>

<p><textarea></textarea>
1	wakaba	1.1	<!DOCTYPE HTML>
2			<title>File.getAsDataURL</title>
3			<style>
4			textarea {
5			width: 100%;
6			height: 10em;
7			}
8			</style>
9
10			<p><label>Select a file: <input type=file onchange="
11			var data = this.files[0].getAsDataURL ();
12			document.getElementsByTagName ('textarea')[0].value = data;
13			"></label>
14
15			<p><textarea></textarea>