Read from file using Javascript

<!DOCTYPE html>
<html>
  <head>
    <title>reading file</title>
    <script type="text/javascript">

var reader = new FileReader();

function readText(that){

if(that.files && that.files[0]){
var reader = new FileReader();
reader.onload = function (e) {
var output=e.target.result;

//process text to show only lines with "@":
output=output.split("\n").filter(/./.test, /\@/).join("\n");
window.alert(output);
document.getElementById('main').innerHTML= output;
};//end onload()
reader.readAsText(that.files[0]);
}//end if html5 filelist support
}
</script>
</head>
<body>
<input type="file" onchange='readText(this)' />
<div id="main" style="backgroundcolor:red;"></div>
  </body>
</html>

Comments