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https://developer.mozilla.org/en-US/docs/Web/API/FileReader
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.. File objects may be obtained from a FileList object returned as a result of a user selecting files using the <input> element, from a drag and drop operation's DataTransfer object, or from the ...
https://www.javascripture.com/FileReader
Interactive API reference for the JavaScript FileReader Object. FileReader is used to read the contents of a Blob or File.
https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsBinaryString
The readAsBinaryString method is used to start reading the contents of the specified Blob or File.When the read operation is finished, the readyState becomes DONE, and the loadend is triggered. At that time, the result attribute contains the raw binary data from the file.. Note that this method was once removed from the File API specification, but re-introduced for backward compatibility.
https://developer.mozilla.org/en-US/docs/Web/API/FileReader/onload
The FileReader.onload property contains an event handler executed when the load event is fired, when content read with readAsArrayBuffer, readAsBinaryString, readAsDataURL or readAsText is available.
https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsDataURL
Note: The FileReader() constructor was not supported by Internet Explorer for versions before 10. For a full compatibility code you can see our crossbrowser possible solution for image preview.See also this more powerful example.
https://developer.mozilla.org/en-US/docs/Web/API/FileReaderSync
The FileReaderSync interface allows to read File or Blob objects synchronously.. This interface is only available in workers as it enables synchronous I/O that could potentially block.. Properties. This interface does not have any properties. Methods FileReaderSync.readAsArrayBuffer() This method converts a specified Blob or a File into an ArrayBuffer representing the input data as a binary ...
https://stackoverflow.com/questions/22257063/filereader-support-in-htas
Does anyone know if HTAs support FileReader() when IE10 or IE11 are installed? Example: var reader = new FileReader(); I'm getting "Object doesn't support this action" but FileReader() is supported on IE10 and IE11, so shouldn't it be available on HTAs too?
https://www.positronx.io/understand-html5-filereader-api-to-upload-image-and-text-files/
Jan 08, 2020 · The JavaScript FileReader API works asynchronously, It allows a user to upload single or multiple files in the browser via the local device. When a user selects the files from the device then a FileList object is generated and it contains all the selected files within the FileList object. ... How to Check HTML5 File API’s Browser Support ...
https://blog.teamtreehouse.com/reading-files-using-the-html5-filereader-api
Sep 17, 2013 · Browser Support for the FileReader API. Browser support for the FileReader API is pretty good. The API will work in the latest versions of all the major desktop browsers. It’s worth noting that Internet Explorer only started supporting FileReader in IE10.
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