Question

I need to save some data in a file and when loading the page i want to read this file and add this data to the page. I don’t know why but this assignment is useless so we can’t use database nor server stuff, so i have to save and read from a local file.

I searched the net and found knew that it is not allowed to access files directly from javascript but using the FileAPI in HTML5 i can select a file to read.

So my question is how is this done because there are no resources about this, i simply need to
read a file and into a string.
Thanks,

Answer 1

For using the File API (HTML5) including reading/writing the content of local files and some sample source code see these links:

• https://developer.mozilla.org/en/Using_files_from_web_applications
• http://www.html5rocks.com/en/tutorials/file/dndfiles/
• https://developer.mozilla.org/en/DOM/FileReader
• http://www.w3.org/TR/file-writer-api/
• http://www.html5rocks.com/en/tutorials/file/filesystem/

You should be aware that not all borwser/versions support all of the above AND that access to local filesystem depends on security settings…