FileReader class

Lets web applications asynchronously read the contents of files (or raw data buffers) stored on the user's computer, using File or Blob objects to specify the file or data to read.

MDN Reference

Implemented types

EventTarget

Available extensions

Annotations

@JS()
@staticInterop

Constructors

FileReader(): factory

Properties

abort ↔ void Function(): Available on FileReader, provided by the FileReader$Typings extension

getter/setter pair
addEventListener ↔ void Function(String, [Object?, Object?]): Available on EventTarget, provided by the EventTarget$Typings extension

getter/setter pair
addEventListener → ({void Function<K$ extends Event>(FileReaderEventMap<K$> type, dynamic listener(K$), [Object? options]) $1, void Function(String type, Object listener, [Object? options]) $2}): Available on FileReader, provided by the FileReader$Typings extension
Overload accessor: $1, $2
no setter
dispatchEvent ↔ bool Function(Event): Available on EventTarget, provided by the EventTarget$Typings extension

getter/setter pair
done → num: Available on FileReader, provided by the FileReader$Typings extension

no setter
empty → num: Available on FileReader, provided by the FileReader$Typings extension

no setter
error → DOMException?: Available on FileReader, provided by the FileReader$Typings extension
MDN Reference
no setter
hashCode → int: The hash code for this object.
no setterinherited
loading → num: Available on FileReader, provided by the FileReader$Typings extension

no setter
onabort ↔ dynamic Function(ProgressEvent<FileReader>)?: Available on FileReader, provided by the FileReader$Typings extension
MDN Reference
getter/setter pair
onerror ↔ dynamic Function(ProgressEvent<FileReader>)?: Available on FileReader, provided by the FileReader$Typings extension
MDN Reference
getter/setter pair
onload ↔ dynamic Function(ProgressEvent<FileReader>)?: Available on FileReader, provided by the FileReader$Typings extension
MDN Reference
getter/setter pair
onloadend ↔ dynamic Function(ProgressEvent<FileReader>)?: Available on FileReader, provided by the FileReader$Typings extension
MDN Reference
getter/setter pair
onloadstart ↔ dynamic Function(ProgressEvent<FileReader>)?: Available on FileReader, provided by the FileReader$Typings extension
MDN Reference
getter/setter pair
onprogress ↔ dynamic Function(ProgressEvent<FileReader>)?: Available on FileReader, provided by the FileReader$Typings extension
MDN Reference
getter/setter pair
readAsArrayBuffer ↔ void Function(Blob): Available on FileReader, provided by the FileReader$Typings extension

getter/setter pair
readAsBinaryString ↔ void Function(Blob): Available on FileReader, provided by the FileReader$Typings extension

getter/setter pair
readAsDataURL ↔ void Function(Blob): Available on FileReader, provided by the FileReader$Typings extension

getter/setter pair
readAsText ↔ void Function(Blob, [String?]): Available on FileReader, provided by the FileReader$Typings extension

getter/setter pair
readyState → Object: Available on FileReader, provided by the FileReader$Typings extension
MDN Reference
no setter
removeEventListener ↔ void Function(String, [Object?, Object?]): Available on EventTarget, provided by the EventTarget$Typings extension

getter/setter pair
removeEventListener → ({void Function<K$ extends Event>(FileReaderEventMap<K$> type, dynamic listener(K$), [Object? options]) $1, void Function(String type, Object listener, [Object? options]) $2}): Available on FileReader, provided by the FileReader$Typings extension
Overload accessor: $1, $2
no setter
result → dynamic: Available on FileReader, provided by the FileReader$Typings extension
MDN Reference
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
inherited

Static Properties

done → num: no setter
empty → num: no setter
loading → num: no setter