File.getAsText()
Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
Deprecated since Gecko 7.0 (Firefox 7.0 / Thunderbird 7.0 / SeaMonkey 2.4)
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Do not use it in old or new projects. Pages or Web apps using it may break at any time.
Summary
The getAsText
method provides the file's data interpreted as text using a given encoding.
Note: This method is obsolete; you should use the FileReader
method readAsText()
instead.
Syntaxe
var str = instanceOfFile.getAsText(encoding);
Parameters
- encoding
- A string indicating the encoding to use for the returned data. If this string is empty, UTF-8 is assumed.
Returns
A string containing the file's data interpreted as text in the specified encoding
.
Example
// fileInput is a HTMLInputElement: <input type="file" id="myfileinput" multiple> var fileInput = document.getElementById("myfileinput"); // files is a FileList object (similar to NodeList) var files = fileInput.files; // object for allowed media types var accept = { binary : ["image/png", "image/jpeg"], text : ["text/plain", "text/css", "application/xml", "text/html"] }; var file; for (var i = 0; i < files.length; i++) { file = files[i]; // if file type could be detected if (file !== null) { if (accept.text.indexOf(file.mediaType) > -1) { // file is of type text, which we accept // make sure it's encoded as utf-8 var data = file.getAsText("utf-8"); // modify data with string methods } else if (accept.binary.indexOf(file.mediaType) > -1) { // binary } } }
Specification
Not part of any specification.
See also
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/file/getastext