FileReader.readyState

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提供目前讀取狀態

語法

var state = instanceOfFileReader.readyState

數值

數字代表 FileReader API 三個可能的狀態:

Value State Description
0 EMPTY Reader has been created. None of the read methods called yet.
1 LOADING A read method has been called.
2 DONE The operation is complete.

規格

Specification
File API
# dom-filereader-readystate

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