how can i create a file on client side by JavaScript ?

Question

i need to create a temp file to store user settings on the client side .it it possible to create a simple log file by JavaScript ?

Answer 1

If you want to store user settings, you should:

1. use cookies
2. store client information on the server

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The ability for a webpage to access an individual's hard disk would be hazardous. However, as Trey pointed out below, you can use:

• HTML 5 Client Side Storage (browser support still limited)
• ActiveX/FileSystemObject (Windows/IE only)

Answer 2

You have a few options:

• Cookies
• localStorage
• database

Check this link:

• HTML5: Client-side Storage

Creating a file is possible only in IE using ActiveX objects.

Answer 3

Try this anyway

var fso = new ActiveXObject("Scripting.FileSystemObject");
varFileObject = fso.OpenTextFile("C:\\Sachin.txt", 2, true,0); // 2=overwrite, true=create if not exist, 0 = ASCII
varFileObject.write("File handling in Javascript");
varFileObject.close();

http://www.codeproject.com/KB/scripting/JavaScript__File_Handling.aspx

But i dont think you have to do this type of experiments. You can create and do many file manipulations using server side languages.Thats better

Answer 4

Storing the data in cookies would be the perfect solution.

It's light, and almost any browser has cookies enabled by default.

Answer 5

If you can live with the user having to actively store the file, Downloadify allows you to generate a client side "download" on the fly.