Java has Javadoc, Python has docstring. Is there something similar in JavaScript?

Is there a convention on how to document a JavaScript file with comments? Like function signatures, examples, etc

The requirements for my document management system were:

1. Must be secure from theft by simple copying of directories, files etc.
2. Must be secure against traditional virus infection (infection of physical file)
3. Must be fast to retrieve
4. The repository must not be visible to casual (directory) browsing users etc.

I have decided to store all documents (and scanned images) as blobs in the database and so far my experience is wonderful and document retrieval is blindingly fast as well - it meets all the criteria from above and there are even a couple of additional advantages, such as autostoring documents together with the entity it relates to, easy and fast seaching of contents, removing of all sorts of user activities around opening and naming of documents etc. etc.

My question is - are there any serious risks or things that I overlooked with this design and implementation?

EDIT Note: DB is PostgreSQL, handles BLOBS very well and scales exceptionally well. The environment is Multi-user.

Storing Documents as Blobs in a Database - Any disadvantages?

I need to compare documents stored in a DB and come up with a similarity score between 0 and 1. 

The method I need to use has to be very simple. Implementing a vanilla version of n-grams (where it possible to define how many grams to use), along with a simple implementation of tf-idf and Cosine similarity.

Is there any program that can do this? Or should I start writing this from scratch? 

Simple implementation of N-Gram, tf-idf and Cosine similarity in Python

Is there a way in JS to get the entire HTML within the *html* tags, as a string?

    document.documentElement.??

How to get the entire document HTML as a string?

Can anyone explain to me the difference between Document Types, Exported UTIs and Imported UTIs in Xcode 5.1? I want to be able to have my app automatically detect  file type based on file extension. Which of these three would I need to implement in order to do that?

Document Types vs. Exported and Imported UTIs

What&#39;s the difference between:

    $(window).scrollTop()

and 

    $(document).scrollTop()

Thanks.

$(window).scrollTop() vs. $(document).scrollTop()

I was surprised to find that the following example code only updates a single document:

    &gt; db.test.save({&quot;_id&quot;:1, &quot;foo&quot;:&quot;bar&quot;});
    &gt; db.test.save({&quot;_id&quot;:2, &quot;foo&quot;:&quot;bar&quot;});

    &gt; db.test.update({&quot;foo&quot;:&quot;bar&quot;}, {&quot;$set&quot;:{&quot;test&quot;:&quot;success!&quot;}});

    &gt; db.test.find({&quot;test&quot;:&quot;success!&quot;}).count();
    1

I know I can loop through and keep updating until they&#39;re all changed, but that seems terribly inefficient. Is there a better way?

MongoDB: How to update multiple documents with a single command?

I just want to create new folders in the documents folder of my iPhone app.

Does anybody know how to do that?

Appreciate your help!

Create a folder inside documents folder in iOS apps

Can anyone let me how can I make selenium wait until the time the page loads completely? I want something generic, I know I can configure WebDriverWait and call something like &#39;find&#39; to make it wait but I don&#39;t go that far. I just need to test that the page loads successfully and move on to next page to test.

I found something in .net but couldn&#39;t make it work in java ...

    IWait&lt;IWebDriver&gt; wait = new OpenQA.Selenium.Support.UI.WebDriverWait(driver, TimeSpan.FromSeconds(30.00));
    wait.Until(driver1 =&gt; ((IJavaScriptExecutor)driver).ExecuteScript(&quot;return document.readyState&quot;).Equals(&quot;complete&quot;));

Any thoughts anyone?

Selenium wait until document is ready

I am a jQuery beginner and while going through some code examples I found:

`$(document.body)` and `$(&#39;body&#39;)`

Is there any difference between these two?

Difference between $(document.body) and $(&#39;body&#39;)

&lt;p&gt; I encountered a strange behavior of mongo and I would like to clarify it a bit...&lt;br&gt;
My request is simple as that: I would like to get a size of single document in collection.
I found two possible solutions:&lt;br&gt; &lt;/p&gt;
+ Object.bsonsize - some javascript method that should return a size in bytes&lt;/li&gt;
&lt;li&gt;db.collection.stats() - where there is a line &#39;avgObjSize&#39; that produce some &quot;aggregated&quot;(average) size view on the data. It simply represents average size of single document.&lt;/li&gt;
&lt;br&gt;
When I create test collection with only one document, both functions returns different values. How is it possible? &lt;br&gt;
Does it exist some other method to get a size of a mongo document?


Here, I provide some code I perform testing on:

1. I created new database &#39;test&#39; and input simple document with only one attribute: type:&quot;auto&quot;

        db.test.insert({type:&quot;auto&quot;})

2. output from stats() function call: *db.test.stats()*:

        { 
          &quot;ns&quot; : &quot;test.test&quot;,
          &quot;count&quot; : 1,
          &quot;size&quot; : 40,
          &quot;avgObjSize&quot; : 40,
          &quot;storageSize&quot; : 4096,
          &quot;numExtents&quot; : 1,
          &quot;nindexes&quot; : 1,
          &quot;lastExtentSize&quot; : 4096,
          &quot;paddingFactor&quot; : 1,
          &quot;systemFlags&quot; : 1,
          &quot;userFlags&quot; : 0,
          &quot;totalIndexSize&quot; : 8176,
          &quot;indexSizes&quot; : {
                &quot;_id_&quot; : 8176
        },
        &quot;ok&quot; : 1
       }

3. output from bsonsize function call: *Object.bsonsize(db.test.find({test:&quot;auto&quot;}))*

        481



How to get the size of single document in Mongodb?

I have a complete XML document in a string and would like a `Document` object. Google turns up all sorts of garbage. What is the simplest solution? (In Java 1.5)

**Solution** Thanks to [Matt McMinn](https://stackoverflow.com/users/1322/matt-mcminn), I have settled on this implementation. It has the right level of input flexibility and exception granularity for me. (It&#39;s good to know if the error came from malformed XML - `SAXException` - or just bad IO - `IOException`.)

    public static org.w3c.dom.Document loadXMLFrom(String xml)
        throws org.xml.sax.SAXException, java.io.IOException {
        return loadXMLFrom(new java.io.ByteArrayInputStream(xml.getBytes()));
    }
    
    public static org.w3c.dom.Document loadXMLFrom(java.io.InputStream is) 
        throws org.xml.sax.SAXException, java.io.IOException {
        javax.xml.parsers.DocumentBuilderFactory factory =
            javax.xml.parsers.DocumentBuilderFactory.newInstance();
        factory.setNamespaceAware(true);
        javax.xml.parsers.DocumentBuilder builder = null;
        try {
            builder = factory.newDocumentBuilder();
        }
        catch (javax.xml.parsers.ParserConfigurationException ex) {
        }  
        org.w3c.dom.Document doc = builder.parse(is);
        is.close();
        return doc;
    }



How do I load an org.w3c.dom.Document from XML in a string?

I want to convert a org.w3c.dom.Document object to a String.  I&#39;m using Java 6 and am open to using any (completely free) technology that is up to the task.  I tried the solution from this thread -- https://stackoverflow.com/questions/315517/is-there-a-more-elegant-way-to-convert-an-xml-document-to-a-string-in-java-than, where they have

	DOMImplementationLS domImplementation = (DOMImplementationLS) doc.getImplementation();
	LSSerializer lsSerializer = domImplementation.createLSSerializer();
	String html = lsSerializer.writeToString(doc);	

but was greeted with the following horrendous exception …

	org.w3c.dom.DOMException: DOM method not supported
		at org.w3c.tidy.DOMDocumentImpl.getImplementation(DOMDocumentImpl.java:129)
		at com.myco.myproj.cleaners.JTidyCleaner.outputDocAsString(JTidyCleaner.java:74)
		at com.myco.myproj.cleaners.JTidyCleaner.parse(JTidyCleaner.java:63)
		at com.myco.myproj.util.NetUtilities.getUrlAsDocument(NetUtilities.java:51)
		at com.myco.myproj.parsers.AbstractHTMLParser.getEventFromElement(AbstractHTMLParser.java:131)
		at com.myco.myproj.parsers.AbstractHTMLParser.parsePage(AbstractHTMLParser.java:100)
		at com.myco.myproj.parsers.AbstractHTMLParser.getEvents(AbstractHTMLParser.java:63)
		at com.myco.myproj.domain.EventFeed.refresh(EventFeed.java:87)
		at com.myco.myproj.domain.EventFeed.getEvents(EventFeed.java:72)
		at com.myco.myproj.parsers.impl.ChicagoCouncilGlobalAffairsParserTest.testParser(ChicagoCouncilGlobalAffairsParserTest.java:21)
		at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
		at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
		at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
		at java.lang.reflect.Method.invoke(Method.java:597)
		at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
		at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
		at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
		at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
		at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
		at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
		at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
		at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
		at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
		at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
		at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
		at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
		at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
		at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
		at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
		at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
		at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
		at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
		at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
		at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
		at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
		at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
		at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
		at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
		at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)


How do I convert a org.w3c.dom.Document object to a String?

I returned mongoose docs as json in this way:

    UserModel.find({}, function (err, users) {
        return res.end(JSON.stringify(users));
    }
However, user.\__proto__ was also returned. How can I return without it? I tried this but not worked:

    UserModel.find({}, function (err, users) {
        return res.end(users.toJSON());    // has no method &#39;toJSON&#39;
    }

Convert Mongoose docs to json

I would like to see all files or documents I&#39;ve opened in Visual Studio. I do not want them to be auto hidden or hidden on overflow. 

How can I achieve it?

Make all opened document tabs visible

When I parse my xml file (variable f) in this method, I get an error 

&gt; C:\Documents and Settings\joe\Desktop\aicpcudev\OnlineModule\map.dtd (The system cannot find the path specified)

I know I do not have the dtd, nor do I need it.  How can I parse this File object into a Document object while ignoring DTD reference errors?

    private static Document getDoc(File f, String docId) throws Exception{
    	DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    	DocumentBuilder db = dbf.newDocumentBuilder();
    	Document doc = db.parse(f);
    		
    		
    	return doc;
    }

Make DocumentBuilder.parse ignore DTD references

I can&#39;t access any cookie from JavaScript. I need to read some value and send them via JSON for my custom checks.

I&#39;ve tried to access cookies from JS, like it was described at:

 - http://www.w3schools.com/js/js_cookies.asp
 - https://stackoverflow.com/questions/10730362/javascript-get-cookie-by-name

As you can see at the code, it&#39;s seen as clear as a crystal the next:

    var c_value = document.cookie;

When I&#39;m trying to access the `document.cookie` value from the Chrome&#39;s web-debugger, I see only the empty string at the **Watch expressions**:

So I can&#39;t read cookies value, which I need.

I&#39;ve checked the cookie name, which I&#39;m sending to get an associated value IS correct.
Also, I&#39;m using the **W3Schools** source code for getting cookies, if you&#39;re interested (but from the 2nd link, the technique is similar).

How can I fix my issue?

Can&#39;t access cookies from document.cookie in JS, but browser shows cookies exist

I have this HTML code:

    &lt;html&gt;
      &lt;head&gt;
        &lt;script type=&quot;text/javascript&quot;&gt;
          function GetDoc(x)
          {
            return x.document ||
              x.contentDocument ||
              x.contentWindow.document;
          }
    
          function DoStuff()
          {
            var fr = document.all[&quot;myframe&quot;];
            while(fr.ariaBusy) { }
            var doc = GetDoc(fr);
            if (doc == document)
              alert(&quot;Bad&quot;);
            else 
              alert(&quot;Good&quot;);
          }
        &lt;/script&gt;
      &lt;/head&gt;
      &lt;body&gt;
        &lt;iframe id=&quot;myframe&quot; src=&quot;http://example.com&quot; width=&quot;100%&quot; height=&quot;100%&quot; onload=&quot;DoStuff()&quot;&gt;&lt;/iframe&gt;
      &lt;/body&gt;
    &lt;/html&gt;

The problem is that I get message &quot;Bad&quot;. That mean that the document of iframe is not got correctly, and what is actualy returned by GetDoc function is the parent document.

I would be thankful, if you told where I do my mistake. (I want to get document hosted in IFrame.)

Thank you.



Get IFrame&#39;s document, from JavaScript in main document

I have project in which I need to create an &amp;lt;iframe&amp;gt; element using JavaScript and append it to the DOM. After that, I need to insert some content into the &amp;lt;iframe&amp;gt;. It&#39;s a widget that will be embedded in third-party websites.

I don&#39;t set the &quot;src&quot; attribute of the &amp;lt;iframe&amp;gt; since I don&#39;t want to load a page; rather, it is used to isolate/sandbox the content that I insert into it so that I don&#39;t run into CSS or JavaScript conflicts with the parent page. I&#39;m using JSONP to load some HTML content from a server and insert it in this &amp;lt;iframe&amp;gt;.

I have this working fine, with one serious exception - if the document.domain property is set in the parent page (which it may be in certain environments in which this widget is deployed), Internet Explorer (probably all versions, but I&#39;ve confirmed in 6, 7, and 8) gives me an &quot;Access is denied&quot; error when I try to access the document object of this &amp;lt;iframe&amp;gt; I&#39;ve created. It doesn&#39;t happen in any other browsers I&#39;ve tested in (all major modern ones).

This makes some sense, since I&#39;m aware that Internet Explorer requires you to set the document.domain of all windows/frames that will communicate with each other to the same value. However, I&#39;m not aware of any way to set this value on a document that I can&#39;t access.

Is anyone aware of a way to do this - somehow set the document.domain property of this dynamically created &amp;lt;iframe&amp;gt;? Or am I not looking at it from the right angle - is there another way to achieve what I&#39;m going for without running into this problem? I do need to use an &amp;lt;iframe&amp;gt; in any case, as the isolated/sandboxed window is crucial to the functionality of this widget.

Here&#39;s my test code:

    &lt;!DOCTYPE html PUBLIC &quot;-//W3C//DTD XHTML 1.0 Strict//EN&quot; &quot;http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd&quot;&gt;
    &lt;html xmlns=&quot;http://www.w3.org/1999/xhtml&quot; xml:lang=&quot;en&quot; lang=&quot;en&quot;&gt;
      &lt;head&gt;
        &lt;meta http-equiv=&quot;Content-Type&quot; content=&quot;text/html; charset=utf-8&quot;/&gt;
        &lt;title&gt;Document.domain Test&lt;/title&gt;
        &lt;script type=&quot;text/javascript&quot;&gt;
          document.domain = &#39;onespot.com&#39;; // set the page&#39;s document.domain
        &lt;/script&gt;
      &lt;/head&gt;
      &lt;body&gt;
        &lt;p&gt;This is a paragraph above the &amp;lt;iframe&amp;gt;.&lt;/p&gt;
        &lt;div id=&quot;placeholder&quot;&gt;&lt;/div&gt;
        &lt;p&gt;This is a paragraph below the &amp;lt;iframe&amp;gt;.&lt;/p&gt;
        &lt;script type=&quot;text/javascript&quot;&gt;
          var iframe = document.createElement(&#39;iframe&#39;), doc; // create &lt;iframe&gt; element
          document.getElementById(&#39;placeholder&#39;).appendChild(iframe); // append &lt;iframe&gt; element to the placeholder element
          setTimeout(function() { // set a timeout to give browsers a chance to recognize the &lt;iframe&gt;
            doc = iframe.contentWindow || iframe.contentDocument; // get a handle on the &lt;iframe&gt; document
            alert(doc);
            if (doc.document) { // HEREIN LIES THE PROBLEM
              doc = doc.document;
            }
            doc.body.innerHTML = &#39;&lt;h1&gt;Hello!&lt;/h1&gt;&#39;; // add an element
          }, 10);
        &lt;/script&gt;
      &lt;/body&gt;
    &lt;/html&gt;

I&#39;ve hosted it at:

&lt;http://troy.onespot.com/static/access_denied.html&gt;

As you&#39;ll see if you load this page in IE, at the point that I call alert(), I do have a handle on the window object of the &amp;lt;iframe&amp;gt;; I just can&#39;t get any deeper, into its document object.

Thanks very much for any help or suggestions! I&#39;ll be indebted to whomever can help me find a solution to this.

&quot;Access is denied&quot; JavaScript error when trying to access the document object of a programmatically-created &lt;iframe&gt; (IE-only)

&gt; **Possible Duplicate:**  
&gt; [What&amp;#39;s the difference between window.location and document.location in JavaScript?](https://stackoverflow.com/questions/2430936/whats-the-difference-between-window-location-and-document-location-in-javascrip)  

&lt;!-- End of automatically inserted text --&gt;

In JavaScript, both `window` and `document` have a `location` property, and by setting both to a different URL, browser loads the new URL. 

What&#39;s the difference between them? 

window.location vs. document.location

We can use this [link][1] to `add a new event` to `Google Calendar` by `parameters`

    https://www.google.com/calendar/render?
    action=TEMPLATE&amp;
    text=EventName&amp;
    dates=20131206T050000Z/20131208T060000Z
    &amp;location=EventLocation&amp;
    sprop=name:Name&amp;
    sprop=website:EventWebite&amp;
    details=EventDetail&amp;
    sf=true&amp;
    output=xml


But I can&#39;t find any documentation about these parameters.

Does anyone know where&#39;s it?

  [1]: https://www.google.com/calendar/render?action=TEMPLATE&amp;text=EventName&amp;dates=20131206T050000Z/20131208T060000Z&amp;location=EventLocation&amp;sprop=name:Name&amp;sprop=website:EventWebite&amp;details=EventDetail&amp;sf=true&amp;output=xml

What parameters are required to create an &quot;Add to Google Calendar&quot; link?

A while ago I was making some test in JavaScript, 
and played with a code to get the text of all elements with a certain class.
 
Now I was trying to make something like this but obtain all elements by a certain type, for example all elements `type=&quot;text&quot;`

Is there any way to do this in JavaScript or should I use jQuery?


	var xx = document.getElementsByClassName(&quot;class&quot;);
	for (i=0;i&lt;xx.length;i++){
		var str=xx[i].innerHTML;
                alert(str);
	}


Accessing elements by type in JavaScript

I am executing the following Javascript on my browser (Firefox).

1. console.debug(&quot;Screen height = &quot;+ **screen.availHeight**); //outputs **770**

2. console.debug(&quot;Window Height =&quot;+ **$(window).height()**);  //outputs **210** (I am using jQuery as well)

What is the difference between the two? Is 770 in pixels and 210 in mm?

Similarly, when I write `$(document).height()` and `$(window).height()`, there is a difference. What is the reason?

Difference between screen.availHeight and window.height()

there&#39;s a way to access a real device (iphone/ipad) document folder? I realized an app that store some data in that folder and i wanted to check if all is going in the right way.

There&#39;s a way to access the document folder in iphone/ipad (real device, no simulator)?

I can get `window.document` but how can I get `document.window`? I need to know how to do this in all browsers.

How do I get the Window object from the Document object?

Whats the available solutions for PHP to create word document in linux environment?

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