class FileReader

package js.html

extends EventTarget

Available on HTML5

The FileReader object 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.

Documentation FileReader by Mozilla Contributors, licensed under CC-BY-SA 2.5.

See:

https://developer.mozilla.org/en-US/docs/Web/API/FileReader

Constructor

new ()

Throws:

null

DOMError

Variables

read onlyerror:DOMError

A DOMError representing the error that occurred while reading the file.

onabort:Function

A handler for the abort event. This event is triggered each time the reading operation is aborted.

onerror:Function

A handler for the error event. This event is triggered each time the reading operation encounter an error.

onload:Function

A handler for the load event. This event is triggered each time the reading operation is successfully completed.

onloadend:Function

A handler for the loadend event. This event is triggered each time the reading operation is completed (either in success or failure).

onloadstart:Function

A handler for the loadstart event. This event is triggered each time the reading is starting.

onprogress:Function

A handler for the progress event. This event is triggered while reading a Blob content.

read onlyreadyState:Int

A number indicating the state of the FileReader. This is one of the following:

EMPTY 0 No data has been loaded yet.
LOADING 1 Data is currently being loaded.
DONE 2 The entire read request has been completed.

read onlyresult:Dynamic

The file's contents. This property is only valid after the read operation is complete, and the format of the data depends on which of the methods was used to initiate the read operation.

Methods

abort ():Void

Throws:

null

DOMError

readAsArrayBuffer (blob:Blob):Void

Throws:

null

DOMError

readAsBinaryString (filedata:Blob):Void

Throws:

null

DOMError

readAsDataURL (blob:Blob):Void

Throws:

null

DOMError

readAsText (blob:Blob, label:String = ""):Void

Throws:

null

DOMError

Static variables

staticinline read onlyDONE:Int = 2

staticinline read onlyEMPTY:Int = 0

staticinline read onlyLOADING:Int = 1

Inherited Variables

Inherited Methods

Defined by EventTarget

addEventListener (type:String, listener:Function, capture:Bool = false):Void

addEventListener (type:String, listener:EventListener, capture:Bool = false, ?wantsUntrusted:Bool):Void

Throws:

null

DOMError

dispatchEvent (event:Event):Bool

Throws:

null

DOMError

removeEventListener (type:String, listener:Function, capture:Bool = false):Void

removeEventListener (type:String, listener:EventListener, capture:Bool = false):Void

Throws:

null

DOMError