System.Text.Encoding in WinJS

Question

Is there an equivalent of

System.Text.Encoding.UTF8.GetString(fileContent) 

in WinJS (Windows 8 Store App written in javascript/HTML)?

EDIT. fileContent is a byte array.

Answer 1

There is no strict equivalent of System.Text.Encoding.UTF8.GetString in WinJS, but you can try implement file reading to string as follows:

file.openReadAsync().done(function (stream) {
   var blob = MSApp.createBlobFromRandomAccessStream(file.contentType, stream);
   var reader = new FileReader();

   reader.onload = function(event) {
      var fileAsText = event.target.result;
   };

   reader.readAsText(blob, 'UTF-8');
});

In most cases (file upload via XHR, displaying file) you don't need to have file contents as text, so just use Blob then.