'Cookbook: Dart by Example' page issue

[jerryisbusy]

From URL: https://www.dartlang.org/dart-vm/dart-by-example

The example 'Read file as bytes' may should not import 'crypto' library ?
It should be 'cryptoutils' library i think.

`import 'dart:io';

import 'package:crypto/crypto.dart';

main() async {
var bytes = await new File('file.txt').readAsBytes();
// Do something with the bytes. For example, convert to base64.
String base64 = CryptoUtils.bytesToBase64(bytes);
print(base64);
}`

NoSuchMethodException occured while call 'CryptoUtils.bytesToBase64(bytes)'.
import 'package:cryptoutils/cryptoutils.dart' do fix it.

[kwalrath]

You are exactly right. I'm sure this code worked years ago when it was written, but it doesn't work now.

I'm going to file a bug about the larger issue of maintaining and testing the cookbook code.

Thanks very much, @jerryisbusy, for bringing this to our attention!

[kwalrath]

Another issue on this page: It says that the dart:io library "is used solely for command-line applications running on a stand-alone Dart VM". But you can use it with Flutter, too.

[kwalrath]

/cc @filiph @chalin

[bcko]

I try to reach https://www.dartlang.org/dart-vm/dart-by-example but I get redirected to https://www.dartlang.org/samples

Does Cookbook: Dart by Example still exist?

[kwalrath]

No, we've retired the cookbook, though the samples repo still exists (as you discovered) at https://github.com/dart-lang/dart-samples.

I'm going to close this issue. It looks like we have an open issue (very old :( ) for this at dart-archive/dart-samples#73.