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/Dart 2

open method

Future<RandomAccessFile> open ({FileMode mode: FileMode.read })

Open the file for random access operations. Returns a Future<RandomAccessFile> that completes with the opened random access file. RandomAccessFiles must be closed using the RandomAccessFile.close method.

Files can be opened in three modes:

FileMode.read: open the file for reading.

FileMode.write: open the file for both reading and writing and truncate the file to length zero. If the file does not exist the file is created.

FileMode.append: same as FileMode.write except that the file is not truncated.

Implementation

Future<RandomAccessFile> open({FileMode mode: FileMode.read});

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-io/File/open.html