Develop Reference

set file attribute filesystemobject javascript

I have created a file as part of a script on a network drive and i am trying to make it hidden so that if the script is run again it should be able to see the file and act on the information contained within it but i am having trouble doing this. what i have so far is:
function doesRegisterExist(oFs, Date, newFolder) {
dbEcho("doesRegisterExist() triggered");
sExpectedRegisterFile = newFolder+"\\Register.txt"
if(oFs.FileExists(sExpectedRegisterFile)==false){
newFile = oFs.OpenTextFile(sExpectedRegisterFile,8,true)
newFile.close()
newReg = oFs.GetFile(sExpectedRegisterFile)
dbEcho(newReg.Attributes)
newReg.Attributes = newReg.Attributes+2
}
}
Windows Script Host does not actually produce an error here and the script runs throgh to competion. the only guides i have found online i have been attempting to translate from VBscript with limited success.
variables passed to this function are roughly declared as such
var oFs = new ActiveXObject("Scripting.FileSystemObject")
var Date = "29-12-2017"
var newFolder = "\\\\File-Server\\path\\to\\folder"
I know ActiveX is a dirty word to a lot of people and i should be shot for even thinking about using it but it really is a perfect fit for what i am trying to do.
Please help.

sExpectedRegisterFolder resolves to \\\\File-Server\\path\\to\\folder\\Register which is a folder and not a file.
I get an Error: file not found when I wrap the code into a try/catch block.
I tested the code on a text file as well, and there it works.
So you're either using the wrong method if you want to set the folder to hidden.
Or you forgot to include the path to the text if you want to change a file to hidden.
( Edit: Or if Register is the name of the file, add the filetype .txt ? )
If you change GetFile to GetFolder as described in https://msdn.microsoft.com/en-us/library/6tkce7xa(v=vs.84).aspx
the folder will get hidden correctly.

Javascript Get Hostname of File Host

Although this question is similar, it is not what I am looking for.
Let's say on HostA.com I include a script from HostB.com:
<script type="text/javascript" src="http://www.hostb.com/script.js">
When script.js runs, I need to get the name of HostB (let's assume it can change). If I use:
var hostName = window.location.hostname;
It will return HostA.com rather than HostB.com obviously because that is where the the window object is scoped.
How can I get the name of HostB from within the script? Do I have to locate the <script> element in the DOM and parse the src attribute or is there a better way?
EDIT
Yes, it is on my server, but may be on other servers as well. I am developing a javascript plugin and am trying to make absolute paths so it doesn't try to reference files on the server including the plugin.

Here is how: first off, include this as the first line of your script. I know it is a comment. Do it anyways
//BLAHBLAHBLAHBLAHAAABBBCCCDDDEEEFFFGGGILIKEPI
next, use this function inside of that script to determine the host
function findHost(){
var scripts=document.getElementsByTagName('script');
var thisScript=null;
for(var i=0;i<scripts.length;i++){
if(scripts[i].innerHTML.indexOf('//BLAHBLAHBLAHBLAHAAABBBCCCDDDEEEFFFGGGILIKEPI')!==-1)
var thisScript=scripts[i];
}
var urlParser=document.createElement('a');
urlParser.href=thisScript.getAttribute('src');
return urlParser.hostname;
}

I am loading the script with RequireJS which looks something like this:
<script data-main="http://hostb.com/js/app/main.js" src="http://hostb.com/js/vendor/require.js" type="text/javascript"></script>
I figured out, with help from #adeneo that I can do something like this:
$('script[data-main*="/js/app/main.js"]').attr('data-main')
Which returns:
http://hostb.com/js/app/main.js
And I can parse it for the hostname.
var url = $('script[data-main*="/main.js"]').attr('data-main');
parser = document.createElement('a');
parser.href = url;
host = parser.hostname;
Thanks for the suggestions and nudge in the right direction!
BREAKING NEWS
Turns out their is an easier way for anyone using RequireJS (who finds this question in search) and needs to be able to load absolute URL's with the script host:
var myCssPath = require.toUrl('css/mystyles.css');
That builds an absolute path using the hostname of the server running!

To omit using the hostname twice (as you described in your 'accepted answer') I implemented the solution this as follows:
HTML on HostA.com:
<script data-main="my_embed_id" src="http://hostb.com/js/vendor/require.js" type="text/javascript"></script>
require.js on HostB.com:
// get host where this javascript runs
var url = $('script[data-main="my_embed_id"]').attr('src');
var hostb = url.replace(/(\/\/.*?\/).*/g, '$1');
Which returns:
http://hostb.com
Inspired by: How to make an external javascript file knows its own host?

Cache static HTML pages with get variables

I have a website with a lot of iframes like this:
<iframes src="expamle.com\page.html?var=blabla&id=42" scrolling="no"></iframe>
I have to change var=blabla&id=42 for each iFrame. These parameters are used in the javascript of the iframe. Is there any way to cache(give hints to the browser) page.html (static) once for all variables ?
I have to use an iframe since I want to be able to update this code ( from another server) & to run it in another scope.

No - Anything changing the query string represents a seperate resource for the browser.
However, you may be able to achieve that effect if you can make some slight changes to page.html. If you write it this way:
<iframes src="expamle.com\page.html#var=blabla&id=42" scrolling="no"></iframe>
Note the use of the # character - that's the key there.
The query string becomes simply "page.html" and will cache that way. However, the Javascript of that page will have access to the variable document.location.hash, which will contain "var=blabla&id=42". It'll be written as a single string, but it shouldn't be difficult to parse. Some libraries even use that tag to pass parameters in semi-real-time to iframes for IE6 compatibility.

If it's only used in the javascript but is really only 1 page server side don't use ? But use # it will consider it as the same page but at diferent anchor pounts. So if test.com/#foo is cached then test.col/#bar is too (same page, different anchor points)

You can update the frame URLs from code:
var fr = document.getElementsByTagName('iframe');
var sites = "1.com,2.com".split(",");
for(var x=0;x<fr.length;x++) {
document.getElementsByTagName('iframe')[x].src="http://"+sites[x];
}

How should I create relative paths in javascript using MVC3?

I am having some difficulty aligning my paths without a hardcode in javascript. I am running an asp.net MVC3 web application.
If my path is of the form
var url = 'http://serverNameHardcode/websiteNameHardcode/service/service?param1=' + param;
Then things work fine when I do
$.get(url,
{},
function (data) {alert('callback success');},'json');
I would like to create a relative path. I tried
var url = 'service/service?param1=' + param;
And this works when I run locally and also in Firefox, but not in IE7. When I publish to the server without the hardcode the callback never fires. I know MVC-3 adds some complexity to routing, but I do not know if it applies to this situation; so, I marked this question as such.
How should I setup my path so I don't need hardcodes?

Just write out the app path as a global js variable from your master view, then compose links as
APPPATH + "path/whatever"

Just had to solve this for one of my jQuery plugins, where it is preferable not to modify anything global (i.e. outside the scope of the plugin use) so I had to disregard the marked answer.
I also found that because I host DEV locally in IIS I could not use a root-relative path (as localhost is not the root).
The solution I came up with extended what I had already started with: a data-controller attribute specifying which controller to use in the element I am applying my plugin to. I find it preferable to data-drive the controller names so the components can be more easily reused.
Previous:
<div data-controller="Section">
Solution:
<div data-controller="#Url.Content("~/Section")">
This injects the server root (e.g. /Test.WindowsAzure.Apr2014/ before the controller name so I wind up with /Test.WindowsAzure.Apr2014/Section which is perfect for then appending actions and other parameters as you have. It also avoids having an absolute path in the output (which takes up extra bytes for no good reason).
In your case use something like:
// Assuming $element points to the element your plugin/code is attached to...
var baseUrl = $element.data('controller');
var url = baseUrl + '/service?param1=' + param;
Update:
Another approach we now use, when we do not mind injecting a global value, is Razor-inject a single global JavaScript variable onto window in the layout file with:
<script>
window.SiteRoot = "#Url.Content("~/")";
</script>
and use it with
var url = window.SiteRoot + '/service?param1=' + param;

One option:
var editLink = '#Url.Action("_EditActivity", "Home")';
$('#activities').load(editLink + "?activityID=" + id);
another example:
var actionURL = '#Url.Action("_DeleteActivity", "Home")';
$('#activities').load(actionURL + "?goalID=" + gID + "&activityID=" + aID);
If you don't need to add to the string:
$('#activities').load('#Url.Action("_Activities", "Home", new { goalID = Model.goalID},null)');

I really need the path to get this to work, maybe its IE7. Who knows. But this worked for me.
Grab the URL and store it somewhere. I chose to implement the data attribute from HTML5.
<div id="websitePath" data-websitePath='#Request.Url.GetLeftPart(System.UriPartial.Authority)#Request.ApplicationPath'></div>
Then when you need to perform some AJAX or otherwise use a URL in javascript you simply refer to the stored value. Also, there are differences in the versions of IIS (not cool if your devbox is IIS5 and your server is IIS7). #Request.ApplicationPath may or may not come back with a '/' appended to the end. So, as a workaround I also trim the last character if it is /. Then include / as part of the url.
var urlprefix = $('#websitePath').data('websitepath');
urlprefix = urlprefix.replace(/\/$/, "");
var url = urlprefix + '/service/service?param1=' + param;

While the accepted answer is correct I would like to add a suggestion (i.e. how I do it).
I am using MVC, and any ajax request goes to a controller. My controllers have services so if a service call is required the controller will take of that.
So what's my point? So if ajax always communicates with a controller, then i would like to let the MVC routing resolve the path for me. So what I write in Javascript for url is something like this:
url: 'controller/action'
This way there is no need for the root path etc...
Also, you can put this in a separate Javascript file and it will also work whereas #Url.Content will need to be called on the view.

How to get the currently loading script name and the url variable of the script?

I am loading a script using the script embed tag and I want to get the url variables and the loading script name inside the script. Is it possible? For Example,
<script src="test.js?id=12"></script>
Inside test.js is there any way to get the url variable id?
Any help would be appreciated.
Thanks,
Karthik

Aside from the answers in the linked post, FWIW with Firefox 4 only you can (with caveats); document.currentScript.src which will return the full url, including arguments.

Thanks for all your efforts I have made that working by assigning an id attribute in the script tag and accessed via jQuery,
<script src="test.js?id=12" id="myScript"></script>
var currentScript = $("#myScript").attr('src'); //This will give me my script src
Thanks,
Karthik

If you want to get a variable from the current URL you can use this:
function queryParser(url){
this.get=function(p){return this.q[p];}
this.q={};
this.map=function(url){
url=url || window.location.search.substring(1);
var url=url.split('&');
var part;
for(var i=0;i<url.length;i++){
part=url[i].split('=');
this.q[part[0]]=part[1];
}
}
this.map(url);
}
var query=new queryParser();
// assuming you have ?test=something
alert(query.get('test'));
I recommend you map the result, so you don't re-parse whenever you want to find a specific element.
I don't really know why you'd pass a query string in a script tag like that, unless you specifically want off-site includes with a simple robust system for various effects. Or are actually using PHP to handle that request.
If you want to "send" a variable to one of your scripts, you can always do:
<script type="text/javascript">
var myVar="I'm in global scope, all scripts can access me";
</script>
<script src="test.js?id=12"></script>
If you really need to get the URL of the currently included script, you can use the code supplied by my peers in the other answers, you can then use:
var query=new queryParser(scriptURL);
alert(query.get('id'));// would alert 12 in your case

Navigating through the link on your comments you can get the proper answer.
Anyway, to make things easier:
var allScripts=document.getElementsByTagName('script');
var indexLastScript= allScripts.length -1;
alert (allScripts[indexLastScript].src);
This will show up "test.js?id=12" as a regular String so its up to you to split it in order to get de param.
Hope it helps, I've tried it on the run over the Chrome Javascript Console. :D.