Read txt file using javascript

Question

I need to read a file from the browser and I CANNOT use ajax.. it is necessary to be read locally..

this is not a duplicate from Reading a file using javascript

how can I do that?

ps: I also CANNOT use an engine like V8 http://code.google.com/p/v8/ I need to read it with the current native API from javascript!.. is there any way to do that?

ps2: it must run only with chrome, or firefox! IE and others doesnt matter

• EnterJQ: Make use of iframe in HTML5
• mplungjan: Maybe an explanation of your limitations would help us suggest solutions

Answer 1

Here is the sample: DEMO

 function readMultipleFiles(evt) {
 //Retrieve all the files from the FileList object
 var files = evt.target.files;
 if (files) {
 for (var i = 0, f; f = files[i]; i++) {
 var r = new FileReader();
 r.onload = (function (f) {
 return function (e) {
 var contents = e.target.result;
 alert(contents);
 };
 })(f);
 r.readAsText(f);
 }
 } else {
 alert("Failed to load files");
 }
}
document.getElementById('fileinput').addEventListener('change', readMultipleFiles, false);