dom/file/reader-readasdataurl-1.html

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

<p><label>Select a file: <input type=file onchange="
  var reader = new FileReader ();
  reader.onload = function () {
    document.getElementsByTagName ('textarea')[0].value = reader.result;
  };
  reader.readAsDataURL (this.files[0]);
"></label>

<p><textarea></textarea>
1	wakaba	1.1	<!DOCTYPE HTML>
2			<title>FileReader.readAsDataURL</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 reader = new FileReader ();
12			reader.onload = function () {
13			document.getElementsByTagName ('textarea')[0].value = reader.result;
14			};
15			reader.readAsDataURL (this.files[0]);
16			"></label>
17
18			<p><textarea></textarea>