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FileReader.readyState

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Provides the current state of the reading operation.

Syntax

var state = instanceOfFileReader.readyState

Value

A number which is one of the three possible state constants define for the FileReader API:

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

Specifications

Specification Status Comment
File API
The definition of 'FileReader' in that specification.
Working Draft Initial definition

Browser compatibility

Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari
Basic support 3.6 (1.9.2)[1] 7 10[2] 12.02[3] 6.0.2
Feature Firefox Mobile (Gecko) Android IE Mobile Opera Mobile Safari Mobile
Basic support 32 3 10 11.5 6.1

[1] Prior to Gecko 2.0 beta 7 (Firefox 4.0 beta 7), all Blob parameters below were File parameters; this has since been updated to match the specification correctly. Prior to Gecko 13.0 (Firefox 13.0 / Thunderbird 13.0 / SeaMonkey 2.10) the FileReader.error property returned a FileError object. This interface has been removed and FileReader.error is now returning the DOMError object as defined in the latest FileAPI draft.

[2] IE9 has a File API Lab.

[3] Opera has partial support in 11.1.

See also

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