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How to create/write/edit files on a server using JavaScript and Ajax?

I can't get this to work. What I want to do: Write text to the file example.txt on my server.
var text = "Example;Example;Example";
function saveToTxt(text)
{
//Code which saves text to file
}
As far as I know, I have to use some kind of Ajax request like this:
$.ajax({
type: "POST",
url: url,
data: data,
success: success,
dataType: dataType
});
Can someone give me an example on how to do this are any alternatives?
Thank you in advance!

This post talk about how to save and write file into server using js and php.
(Saving a text file on server using JavaScript).
This is another post where you can edit your file with php.(How to edit/update a txt file with php)
Hope this helps

How to set the url in off-line site using jquery ajax

well my task is running a static site, No servers at all. pure HTML, and i need to load and read an XML file and update the page with the result.
The task is done and can read the xml file if the file is in the same location, the problem is if the xml file is in a separate folder the ajax flails. seems like the url fails.
$.ajax({
type: "GET",
// working url setting - case - 1
// url: "somexmlfile.xml",
// not working - case - 2
url: "../somepath/somexmlfile.xml",
dataType: "xml",
success: function(xml){
// do something with the returned data
},
error: function() {
// display the error
}
});
Case - 1 is the working solution for me, but i need to place the xml file in a separate place.
Then the case - 2 is the way to get to the file which is getting failed.
any idea,
Actually no domain, no servers, its is pure HTML,
All files are in ex:
D:/myfiles/someFolder/index.html
If i put the file in
D:/myfiles/someFolder/xml/myxml.xml
and set the url as
url: "xml/myxml.xml"
this config is working too,
But i'm trying to place the xml file in
D:/myfiles/xml/myxml.xml and need to read the file using ajax setting the url as
url: "../xml/myxml.xml"

Try to use an absolute url:
www.yourdomain.ext/siteDolder/xmlFolder/xmlfile.xml

Finally the solution was to turn off browser security (strict_origin_policy set to false on about:config) on Firefox settings and it works.

Can I get a secured XML file from an AJAX call?

Hi I wanted to know if it is possible to get a secured XML file from an AJAX call.
I have the following code to get the xml file (which works):
function loadXMLFile() {
var filename = 'test.xml';
$.ajax({
type: "GET",
url: filename,
dataType: "xml",
success: parseXML,
error: Fail
});
}
With secure I mean that people can not get the xml file through their browser.

There is no way to write JavaScript that will tell the user's browser how to get some data without also making that data available to the person who controls the browser.

How can i receive data from external url using json?

Recently i am learning json to create apps.I have a doubt in a Json , php based chat system .
In this , the code work fine for same origin policy.But for sending and receiving data from external url, it successfully sends data to external php.But not receiving any data from server.I search in internet to solve this problem , and found jsonp as alternative. I tried jsonp , but i m not sure if am correct because i am new to ajax itself.
Please don't mis understand my question.I want to load a index.html file from localhost , when i send request to external url (anysite.com/xx/ajax.php) .It process and returns the data back to index.html.But the problem is my data is sended finely and processed on the server but it doesn't return to remote file.But it works fine for same server.
$.tzPOST = function(action,data,callback)
{
$.post('http://anysite.com/xx/ajax.php?action='+action,data,callback,'json');
}
$.tzGET = function(action,data,callback){
$.get('http://anysite.com/xx/ajax.php?action='+action,data,callback,'json');
}
please help me with a code.

You cant receive JSON from external web by JavaScript, because of the policy.
But you can do AJAX request on your PHP file and there you can get the JSON by file_get_content http://cz2.php.net/file_get_contents function.

For using(working) with jsonp, u can take ready solution jquery-jsonp
from GitHub.
Example of using (by you question):
$.tzGET = function(action,data,callback){
var url = 'http://anysite.com/xx/ajax.php?action='+action;
$.jsonp({
type: 'GET',
url: url,
callbackParameter: callback,
dataType: 'jsonp',
data: data,
timeout: 10000,
success: function(json){
alert('success')
},
error: function(){
alert('error')
}
});

file download popup box using javascript

I am working on ASP.NET web form application.
I am processing file at server side in my web service code.
This web method will return me file memory stream.
I would like to consume this memory stream at client side using javascript method.
after processing in js method i will open popup to download that memory stream.
function ExportExel(){
$.ajax({
type: "POST",
url: baseUrl + '/' + "WebServices/ExtraInfoWebService.asmx/Urlhttphandler",
data: {},
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (msg) {
//********some code require here.... *************
}
});
}
in msg.d i am getting memory stream
i need code here
//********some code require here.... *************
to show file download popup.
Any help/pointers will be helpful for me.

For that you will need to give new request to server..
Ajax call does not provide that much facility (showing popup when get stream)
If you send new request and response get in the form of stream. browser shows the save and open popup. you don't need to do it manually