Yes, `&amp;#9658;`, but it might not look the same in all browsers.

If you need to use it in CSS, as in 

        li:before {
            content: &#39;\25BA&#39;;
        }
This is the CSS conversion of `&amp;#9658;`
A helpful tool for these conversions: [evotech.net/articles/testjsentities.html][1]


  [1]: http://www.evotech.net/articles/testjsentities.html

`&amp;#9658;` from [Wolfram Alpha][1]


  [1]: http://www.wolframalpha.com/input/?i=%E2%96%BA

I tried using the ascii code but didn&#39;t like it as it always looked stretched.

Instead, I found an ingenious easily customizable solution online, that uses css and only manipulates the border property:

&lt;!-- begin snippet: js hide: false console: true babel: false --&gt;

&lt;!-- language: lang-css --&gt;

    .play {
      border-top: 10px solid white;
      border-bottom: 10px solid white;
      border-left: 20px solid black;
      height: 0px;
    }

&lt;!-- language: lang-html --&gt;

    &lt;div class=&quot;play&quot;&gt;&lt;/div&gt;

&lt;!-- end snippet --&gt;



Here&#39;s a long list of what you can use:

http://brucejohnson.ca/SpecialCharacters.html

You can use Bootstrap glyphicons.

    &lt;span class=&quot;glyphicon glyphicon-play&quot;&gt;&lt;/span&gt;&lt;br&gt;
    &lt;span class=&quot;glyphicon glyphicon-play-circle&quot;&gt;&lt;/span&gt;&lt;br&gt;
    &lt;span class=&quot;glyphicon glyphicon-triangle-right&quot;&gt;&lt;/span&gt;&lt;br&gt;

Remember to also include Bootstrap and jQuery in the `&lt;head&gt;` element.

    &lt;head&gt;
    &lt;link rel=&quot;stylesheet&quot; href=&quot;https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css&quot;&gt;
    &lt;script src=&quot;https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js&quot;&gt; 
    &lt;/script&gt;
    &lt;script src=&quot;https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js&quot;&gt;&lt;/script&gt;
    &lt;/head&gt;

JSFiddle explaining this: https://jsfiddle.net/canada/dfr90pac/

Well, you could use an image and display it in the `&lt;img&gt;` tags. On their click event, you could write some JavaScript code. You could search the images in Google.

I&#39;m making a small program for math (no particular reason, just kind of wanted to) and I ran into the error &quot;TypeError: &#39;NoneType&#39; object is not subscriptable.

I have never before seen this error, so I have no idea what it means.

    import math
    
    print(&quot;The format you should consider:&quot;)
    print str(&quot;value 1a&quot;)+str(&quot; + &quot;)+str(&quot;value 2&quot;)+str(&quot; = &quot;)+str(&quot;value 3a &quot;)+str(&quot;value 4&quot;)+str(&quot;\n&quot;)
    
    print(&quot;Do not include the letters in the input, it automatically adds them&quot;)
    
    v1 = input(&quot;Value 1: &quot;)
    v2 = input(&quot;Value 2: &quot;)
    v3 = input(&quot;Value 3: &quot;)
    v4 = input(&quot;Value 4: &quot;)
    
    lista = [v1, v3]
    lista = list.sort(lista)
    
    a = lista[1] - lista[0]
    
    list = [v2, v4]
    list = list.sort(list)
    
    b = list[1] = list[0]
    
    print str(a)+str(&quot;a&quot;)+str(&quot; = &quot;)+str(b)


The error:

    Traceback (most recent call last):
      File &quot;C:/Users/Nathan/Documents/Python/New thing&quot;, line 16, in &lt;module&gt;
        a = lista[1] - lista[0]
    TypeError: &#39;NoneType&#39; object is not subscriptable



Python Math - TypeError: &#39;NoneType&#39; object is not subscriptable

I have a class as:

    Class MyClass
    {
       public MyClass { ... }
       public string Name { get { ... } }
       public int IdNumber { get { ... } set { ... } }
       public void GenerateNme {...}
    }

It is just a sample class. I wish to generate Interface from it. Like, MyClass is implementing IMyClass interface. I wish the output to be

    public Interface IMyClass
    {
       string Name { get; }
    
       int IdNumber { get; set; }
       
       void GenerateNumber();
    }

and 

    MyClass : IMyClass
    {
    
    }

It can be done manually, but I was just curious to know, is there any other simple method to follow to accomplish this? If not clear, leave a comment.

Thanks.


Generate Interface from existing class

How do I display this ► Play (Forward) or Solid right arrow symbol in html?

How do I display ► Play (Forward) or Solid right arrow symbol in html?

<p>How do I display this ► Play (Forward) or Solid right arrow symbol in html?</p>


How do I change the cursor pointer to hand when my mouse goes over a `&lt;tr&gt;` in a `&lt;table&gt;`

    &lt;table class=&quot;sortable&quot; border-style:&gt;
      &lt;tr&gt;
        &lt;th class=&quot;tname&quot;&gt;Name&lt;/th&gt;&lt;th class=&quot;tage&quot;&gt;Age&lt;/th&gt;
      &lt;/tr&gt;
      &lt;tr&gt;&lt;td class=&quot;tname&quot;&gt;Jennifer&lt;/td&gt;&lt;td class=&quot;tage&quot;&gt;24&lt;/td&gt;&lt;/tr&gt;
      &lt;tr&gt;&lt;td class=&quot;tname&quot;&gt;Kate&lt;/td&gt;&lt;td class=&quot;tage&quot;&gt;36&lt;/td&gt;&lt;/tr&gt;
      &lt;tr&gt;&lt;td class=&quot;tname&quot;&gt;David&lt;/td&gt;&lt;td class=&quot;tage&quot;&gt;25&lt;/td&gt;&lt;/tr&gt;
      &lt;tr&gt;&lt;td class=&quot;tname&quot;&gt;Mark&lt;/td&gt;&lt;td class=&quot;tage&quot;&gt;40&lt;/td&gt;&lt;/tr&gt;
    &lt;/table&gt;

Change cursor to hand when mouse goes over a row in table

I want to avoid page break inside row of table in html, when I convert html to PDF by wkhtmltopdf. I use page-break-inside:avoid with table- its works, but I have so many rows,
then &lt;tr style=&quot;page-break-inside:avoid&quot;&gt; not work.
If set display of **tr as block or some thing else then it change the formatting of table** and insert double border.
Or it is possible to insert the table header on each page, where the table was splitted.

avoid page break inside row of table

Is it possible to have one controller use another?

For example:

This HTML document simply prints a message delivered by the `MessageCtrl` controller in the `messageCtrl.js` file.

    &lt;html xmlns:ng=&quot;http://angularjs.org/&quot;&gt;
    &lt;head&gt;
        &lt;meta charset=&quot;utf-8&quot; /&gt;
        &lt;title&gt;Inter Controller Communication&lt;/title&gt;
    &lt;/head&gt;
    &lt;body&gt;
        &lt;div ng:controller=&quot;MessageCtrl&quot;&gt;
            &lt;p&gt;{{message}}&lt;/p&gt;
        &lt;/div&gt;
        
        &lt;!-- Angular Scripts --&gt;
        &lt;script src=&quot;http://code.angularjs.org/angular-0.9.19.js&quot; ng:autobind&gt;&lt;/script&gt;
        &lt;script src=&quot;js/messageCtrl.js&quot; type=&quot;text/javascript&quot;&gt;&lt;/script&gt;
    &lt;/body&gt;
    &lt;/html&gt;

The controller file contains the following code:

    function MessageCtrl()
    {
        this.message = function() { 
            return &quot;The current date is: &quot; + new Date().toString(); 
        };
    }

Which simply prints the current date;

If I were to add another controller, `DateCtrl` which handed the date in a specific format back to `MessageCtrl`, how would one go about doing this?  The DI framework seems to be concerned with `XmlHttpRequests` and accessing services.

Can one AngularJS controller call another?

How can one make the font size grow bigger on mouse over? Color transitions work fine over time, but the font size switches immediately for some reason. 

Sample code:   

    body p {
	     font-size: 12px;
	     color: #0F9;
         transition:font-size 12s;
         -moz-transition:font-size 12s; /* Firefox 4 */
         -webkit-transition:font-size 12s; /* Safari and Chrome */
         -o-transition:font-size 12s;
         transition:color 12s;
         -moz-transition:color 12s; /* Firefox 4 */
         -webkit-transition:color 12s; /* Safari and Chrome */
         -o-transition:color 12s;
    }

     p:hover {
          font-size: 40px;
          color:#FC0;
     }


Can CSS3 transition font size?

    &lt;div style=&quot;display: inline-block; margin: 0 auto;&quot;&gt;
        &lt;input id=&quot;abc&quot; type=&quot;button&quot; value=&quot;button&quot; /&gt;
    &lt;/div&gt;

I try to use the code above to set the width of &lt;div&gt; equal it&#39;s content, and then center it with margin: 0 auto;

But it did not work for me on any browser. Any suggestion?

BTW, when I set the width property, it works fine.

    &lt;div style=&quot;width: 10em; margin: 0 auto;&quot;&gt;
        &lt;input id=&quot;abc&quot; type=&quot;button&quot; value=&quot;button&quot; /&gt;
    &lt;/div&gt;

div with display:inline-block margin 0 auto not center

How can I convert from hex to plain ASCII in Python?

Note that, for example, I want to convert &quot;0x7061756c&quot; to &quot;paul&quot;.


Convert from ASCII string encoded in Hex to plain ASCII?

I&#39;ve got a bunch of `csv` files that I&#39;m reading into R and including in a package/data folder in  `.rdata` format. Unfortunately the non-ASCII characters in the data fail the check. The `tools` package has two functions to check for non-ASCII characters (`showNonASCII` and `showNonASCIIfile`) but I can&#39;t seem to locate one to remove/clean them.

Before I explore other UNIX tools, it would be great to do this all in R so I can maintain a complete workflow from raw data to final product. Are there any existing packages/functions to help me get rid of the non-ASCII characters?

Removing non-ASCII characters from data files

If UTF-8 is 8 bits, does it not mean that there can be only maximum of 256 different characters?

The first 128 code points are the same as in ASCII. But it says UTF-8 can support up to million of characters?

How does this work?





How many characters can UTF-8 encode?

&gt; **Possible Duplicate:**  
&gt; [Convert character to ASCII code in Javascript](https://stackoverflow.com/questions/94037/convert-character-to-ascii-code-in-javascript)  

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

my requirement is to get the ASCII value of the alphabet letters... Can anyone suggest how to do this in JavaScript?

How to get the ASCII value in JavaScript for the characters

I&#39;m running a recent Linux system where all my locales are UTF-8:

    LANG=de_DE.UTF-8
    LANGUAGE=
    LC_CTYPE=&quot;de_DE.UTF-8&quot;
    LC_NUMERIC=&quot;de_DE.UTF-8&quot;
    LC_TIME=&quot;de_DE.UTF-8&quot;
    ...
    LC_IDENTIFICATION=&quot;de_DE.UTF-8&quot;
    LC_ALL=

**Now I want to write UTF-8 encoded content to the console.**

Right now Python uses UTF-8 for the FS encoding but sticks to ASCII for the default encoding :-(

    &gt;&gt;&gt; import sys
    &gt;&gt;&gt; sys.getdefaultencoding()
    &#39;ascii&#39;
    &gt;&gt;&gt; sys.getfilesystemencoding()
    &#39;UTF-8&#39;

I thought the best (clean) way to do this was setting the `PYTHONIOENCODING` environment variable. But it seems that Python ignores it. At least on my system I keep getting `ascii` as default encoding, even after setting the *envvar*.

    # tried this in ~/.bashrc and ~/.profile (also sourced them)
    # and on the commandline before running python
    export PYTHONIOENCODING=UTF-8

If I do the following at the start of a script, it works though:

    &gt;&gt;&gt; import sys
    &gt;&gt;&gt; reload(sys)  # to enable `setdefaultencoding` again
    &lt;module &#39;sys&#39; (built-in)&gt;
    &gt;&gt;&gt; sys.setdefaultencoding(&quot;UTF-8&quot;)
    &gt;&gt;&gt; sys.getdefaultencoding()
    &#39;UTF-8&#39;
    
But that approach **seems unclean**. So, what&#39;s a good way to accomplish this?


Workaround
----------

Instead of changing the default encoding - which is **not a good idea** (see mesilliac&#39;s answer) - I just wrap `sys.stdout` with a `StreamWriter` like this:

    sys.stdout = codecs.getwriter(locale.getpreferredencoding())(sys.stdout)

See [this gist](https://gist.github.com/brutus/6c90b2342ac63054e12d) for a small utility function, that handles it.

[1]: https://github.com/pypa/virtualenv/issues/186


Content Type	Original Author	Original Content on Stackoverflow
Question	Ben	View Question on Stackoverflow
Solution 1 - Html	elclanrs	View Answer on Stackoverflow
Solution 2 - Html	silverliebt	View Answer on Stackoverflow
Solution 3 - Html	Till Hoffmann	View Answer on Stackoverflow
Solution 4 - Html	Alex	View Answer on Stackoverflow
Solution 5 - Html	MetalFrog	View Answer on Stackoverflow
Solution 6 - Html	user13096898	View Answer on Stackoverflow
Solution 7 - Html	karan k	View Answer on Stackoverflow

How do I display ► Play (Forward) or Solid right arrow symbol in html?

Html Problem Overview

Html Solutions

Solution 1 - Html

Solution 2 - Html

Solution 3 - Html

Solution 4 - Html

Solution 5 - Html

Solution 6 - Html

Solution 7 - Html

Generate Interface from existing class

Python Math - TypeError: 'NoneType' object is not subscriptable

Attributions