非标
此特征是非标准的,且不在标准轨道中。不要在面向 Web 的生产站点中使用它:它不适用于每个用户。实现之间可能存在大的不兼容性,且行为将来可能改变。

摘要

readAsText method is used to read the content of the LockedFile object and provide the result of that reading as a string. In many ways, it performs like the FileReader.readAsText() 方法。

The reading operation starts at the position given by the LockedFile.location 特性。

句法

var request = instanceOfLockedFile.readAsText(size[, encoding]);
					

参数

size

A number representing the number of bytes to read in the file.

encoding 可选

A string indicating the encoding to use for the returned data. By default, UTF-8 is assumed if this parameter is not specified.

返回

A FileRequest object to handle the success or failure of the operation. In case of success, the request's result is a string representing the data that have been read.

规范

规范 状态 注释
FileSystem API 编者草案 Draft proposal

另请参阅

元数据

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