FileReaderSync object
FileReaderSync object provides methods to synchronously read a File or a Blob. The FileReaderSync object is only available within a Web Worker.
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Syntax
var reader = new FileReaderSync();
DOM Information
Inheritance Hierarchy
The FileReaderSync does not inherit from any class or interface.Members
The FileReaderSync object has these types of members:
Methods
The FileReaderSync object has these methods.
| Method | Description |
|---|---|
| readAsArrayBuffer |
Reads a File, Blob, MSStream into memory as an ArrayBuffer object. |
| readAsDataURL |
Reads a File or Blob object into memory as a data URL string. |
| readAsText |
Reads a File, Blob, or MSStream object into memory as a text string. |
Remarks
Important The FileReaderSync object's read methods (readAsText, readAsDataURL, and readAsArrayBuffer) have the same name as the read methods of the FileReader object but they perform synchronous ream operations and return the read data.
The FileReaderSync object throws exceptions when read errors are encountered.
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