**01.** Open the page for which you want to get the information.

**02.** Clear the address bar [where you type the address of the sites]:

and type or copy/paste  from below:

    javascript:alert(document.lastModified)

**03.** Press Enter or Go button.



The last changed time comes with the assumption that the web server provides accurate information.  Dynamically generated pages will likely return the time the page was viewed.  However, static pages are expected to reflect actual file modification time.

This is propagated through the HTTP header [`Last-Modified`][1].  The Javascript trick by AZIRAR is clever and will display this value.  Also, in Firefox going to Tools-&gt;Page Info will also display in the &quot;Modified&quot; field.


  [1]: http://en.wikipedia.org/wiki/List_of_HTTP_headers

In general, there is no way to know when something on another site has been changed. If the site offers an RSS feed, you should try that. If the site does not offer an RSS feed (or if the RSS feed doesn&#39;t include the information you&#39;re looking for), then you have to scrape and compare.

Take a look at [archive.org](http://archive.org)

You can find almost everything about the past of a website there. 

I have a file contining some no of lines. I want split file into n no.of files with particular names. It doesn&#39;t matter how many line present in each file. I just want particular no.of files (say 5). here the problem is the no of lines in the original file keep on changing. So I need to  calculate no of lines then just split the files into 5 parts. If possible we have to send each of them into different directories.

How do I split a file into n no of parts

I&#39;m used to the Delphi VCL Framework, where TStreams throw exceptions on errors (e.g file not found, disk full). I&#39;m porting some code to use C++ STL instead, and have been caught out by iostreams NOT throwing exceptions by default, but setting [badbit/failbit flags][1] instead.

Two questions...

 a: Why is this - It seems an odd design decision for a language built with exceptions in it from day one?

 b: How best to avoid this? I could produce shim classes that throw as I would expect, but this feels like reinventing the wheel. Maybe there&#39;s a BOOST library that does this in a saner fashion?


  [1]: http://en.cppreference.com/w/cpp/io/ios_base/iostate

Why are C++ STL iostreams not &quot;exception friendly&quot;?

How can you detect when somebody else&#39;s web page was last updated (or was changed)?

How to know when a web page was last updated?

<p>How can you detect when somebody else's web page was last updated (or was changed)?</p>


I have an &lt;a&gt; tag surrounding an image. I have a border set on the div that the &lt;a&gt; tag is in. I have both margin and padding set to 0 but for some reason my &lt;a&gt; tag is still about 3 pixels taller than my image. This leaves a bit of space between the image and the border, which destroys the look that I want to accomplish.

What am I doing wrong? I have tested in both FireFox and Chrome with the same results.
Thanks

White space at bottom of anchor tag

Is there a way to create a list-style in HTML with a dash (i.e. - or &amp;ndash; `&amp;ndash;` or &amp;mdash; `&amp;mdash;`) i.e.

    &lt;ul&gt;
      &lt;li&gt;abc&lt;/li&gt;
    &lt;/ul&gt;

Outputting:

    - abc

It&#39;s occurred to me to do this with something like `li:before { content: &quot;-&quot; };`, though I don&#39;t know the cons of that option (and would be much obliged for feedback).

More generically, I wouldn&#39;t mind knowing how to use generic characters for list items.


HTML list-style-type dash

I need to use, for example, the star-symbol(★) as the bullet for a list-item.

I have read the [CSS3 module: Lists][1], that describes, how to use custom text as bullets, but it&#39;s not working for me. I think, the browsers simply don&#39;t support the `::marker` pseudo element.

How can I do it, without using images?


  [1]: http://www.w3.org/TR/css3-lists/#markers


Unicode character as bullet for list-item in CSS

Does anyone know about any software that can convert video (avi, flv, whatever) to HTML5 supported ogg/ogv and mpeg4 formats?

I tried a few but I couldn&#39;t find anything that actually works.

Converting video to HTML5 ogg / ogv and mpg4

I want to reduce load times on my websites by moving all cookies into local storage since they seem to have the same functionality. Are there any pros/cons (especially performance-wise) in using local storage to replace cookie functionality except for the obvious compatibility issues?

Local Storage vs Cookies

We&#39;re currently developing a website (TYPO3 under Apache) for a customer that is supported by a node.js/socket.io application that provides realtime updates to the content served from the CMS.

As this is our first node.js project I don&#39;t have any best practices to go by when it comes to &#39;the perfect setup&#39; so I&#39;ve spent some time researching deployment techniques.

A couple of questions remain for me to achieve a good setup which:

 1. **Is easy for the customer to deploy**. This is very important because our website will be integrated in their &#39;live&#39; TYPO3 installation which serves an abundance of websites and is running on servers which aren&#39;t managed by the customer but another (centralized) organization which makes support calls and server changes a slow process.

 2. **Should be easy to update.** As mentioned requesting restarts and making server changes is a slow process, so idealy the node installation should restart / update when it receives changes that are pushed onto the live installion using `git`.

**Deployment**

The [general consensus][1] seems to be to use `forever` when it comes to deploying node applications to keep them running. I&#39;ve tested `forever`, and it seems to work fine when installed by `npm install forever -g` (global). This would require external assistance to globally install on the live environment though, so I&#39;d prefer to have it running from the application&#39;s `node_modules` directory, but I haven&#39;t been able to create a solid wrapper to do so.

Additionally, `forever` works fine, but it has to be started manually. What would be the best approach to ensure that it gets started on server boot and keeps running? 
  
  - A simple `init.d` script?
  - Writing a watchdog wrapper?
  - A TYPO3 scheduler task that checks `forever` status?  

**Rapid development / Restart on update**

We&#39;re currently still in the development stage of the project and every time I make changes to the node.js application I manually restart `node` or `forever`. This works, but is far from ideal.
There are several smaller `npm` modules that check for file modifications and restart `node` upon detected changes, like:

 - [Nodemon][2]
 - [Node.js Supervisor][3]
 - [Bounce][4]
 - [Nodules][5] (which doesn&#39;t require restarting node, so might be easier to combine with `forever`)
 - [Up][6] 

Does anyone have experience with any of these?

**Update: Why don&#39;t you just use Cluster?**

The [Cluster module][7] provides similar functionality through the [reload][8] mechanism, but [doesn&#39;t work with Node 0.5+][9]. The [core Cluster module (Node 0.6+)][10] that replaced it doesn&#39;t have all these features but only provides clustering. Which in turn [doesn&#39;t play well with socket.io][11]. At least [not without using Redis][12] (which is a problem for us, because we can&#39;t force another prereq service to the customer).  

--

Obviously I&#39;m trying to find the most stable solution that combines an update-restarter with `forever` before handing over the project to the customer and I&#39;m really hoping anyone has produced a proven combination of techniques.
 


  [1]: https://stackoverflow.com/questions/4681067/how-to-deploy-node-js
  [2]: http://remysharp.com/2010/10/12/nodejs-rapid-development-nodemon/
  [3]: http://fgnass.posterous.com/nodejs-supervisor
  [4]: https://github.com/weepy/bounce
  [5]: https://stackoverflow.com/a/2929366/813718
  [6]: https://github.com/LearnBoost/up
  [7]: https://github.com/LearnBoost/cluster
  [8]: http://learnboost.github.com/cluster/docs/reload.html
  [9]: https://github.com/kriszyp/multi-node/issues/14
  [10]: http://nodejs.org/api/cluster.html
  [11]: https://github.com/LearnBoost/cluster/issues/95
  [12]: https://stackoverflow.com/questions/8395407/using-socket-io-with-cluster

Node.js setup for easy deployment and updating

I&#39;ve stored user settings in the SharedPreferences in my App. What will happen with the SharedPreferences when I update the App via Google Play Store to a new version of the App? 

Will the SharedPrefernces still be there after the update or will they be deleted?

So far I haven&#39;t found an answer on the web or Stackoverflow.

Can you point me to some links they describe this process?


**Edit:**
Meanwhile I found an other answer as well: https://stackoverflow.com/questions/7103453/sharedpreferences-update-unisntall

**Edit 2:**
Since time past quite a bit when I first asked this question I recently learned that since Android 6.0 (API 23) it is also possible to use the auto backup functionality to *secure* your shared preferences as described by [Google here][1].

Just add the `allowBackup=&quot;true&quot;` in your `AndroidManifest.xml` file.


  [1]: https://developer.android.com/guide/topics/data/autobackup.html

What will happen to the SharedPreferences on update an Android App?

I have not updated my Android Studio for a while and am presented with this dialog box when trying to update:
![enter image description here][1]

Usually there is an &quot;update and restart&quot; option, but not here. The only option is &quot;Download&quot; which directs me [here][2] where I can only download the entire bundle again which gives me a link for Build Number - 130.737825. As you can see that&#39;s before what I already have so I don&#39;t see how that would fix the problem?

I feel like I&#39;m missing something blaringly obvious, but how can I just update like I have been able to before?


  [1]: http://i.stack.imgur.com/JTaV5.png
  [2]: http://developer.android.com/sdk/installing/studio.html#Updating

Can&#39;t update Android Studio - only download

Could you please clarify to me correct way to **update PyCharm on Linux**? 

Is it impossible to update PyCharm internally? 

In `help &gt; check for update` I can just download a new archive.

Should I remove previous folder with PyCharm and unpack new or I should another way for this?

Update PyCharm on Linux

I have a pandas data frame that looks like this (its a pretty big one)

               date      exer exp     ifor         mat  
    1092  2014-03-17  American   M  528.205  2014-04-19 
    1093  2014-03-17  American   M  528.205  2014-04-19 
    1094  2014-03-17  American   M  528.205  2014-04-19 
    1095  2014-03-17  American   M  528.205  2014-04-19    
    1096  2014-03-17  American   M  528.205  2014-05-17 

now I would like to iterate row by row and as I go through each row, the value of `ifor`
in each row can change depending on some conditions and I need to lookup another dataframe.

Now, how do I update this as I iterate.
Tried a few things none of them worked.

    for i, row in df.iterrows():
        if &lt;something&gt;:
            row[&#39;ifor&#39;] = x
        else:
            row[&#39;ifor&#39;] = y
    
        df.ix[i][&#39;ifor&#39;] = x

None of these approaches seem to work. I don&#39;t see the values updated in the dataframe.

Content Type	Original Author	Original Content on Stackoverflow
Question	Gaurav	View Question on Stackoverflow
Solution 1 - Html	Wassim AZIRAR	View Answer on Stackoverflow
Solution 2 - Html	spoulson	View Answer on Stackoverflow
Solution 3 - Html	JSBձոգչ	View Answer on Stackoverflow
Solution 4 - Html	Zararsiz	View Answer on Stackoverflow

How to know when a web page was last updated?

Html Problem Overview

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Solution 4 - Html

Why are C++ STL iostreams not "exception friendly"?

How do I split a file into n no of parts

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