An instance variable is a variable that is a member of an instance of a class (i.e., associated with something created with a new), whereas a class variable is a member of the class itself.

Every instance of a class will have its own copy of an instance variable, whereas there is only one of each static (or class) variable, associated with the class itself.

What’s the difference between a class variable and an instance variable?

This test class illustrates the difference:

public class Test {
   
    public static String classVariable = "I am associated with the class";
    public String instanceVariable = "I am associated with the instance";
    
    public void setText(String string){
        this.instanceVariable = string;
    }
    
    public static void setClassText(String string){
        classVariable = string;
    }
    
    public static void main(String[] args) {
        Test test1 = new Test();
        Test test2 = new Test();
        
        // Change test1's instance variable
        test1.setText("Changed");
        System.out.println(test1.instanceVariable); // Prints "Changed"
        // test2 is unaffected
        System.out.println(test2.instanceVariable); // Prints "I am associated with the instance"
        
        // Change class variable (associated with the class itself)
        Test.setClassText("Changed class text");
        System.out.println(Test.classVariable); // Prints "Changed class text"
        
        // Can access static fields through an instance, but there still is only one
        // (not best practice to access static variables through instance)
        System.out.println(test1.classVariable); // Prints "Changed class text"
        System.out.println(test2.classVariable); // Prints "Changed class text"
    }
}

Depending on your timezone, you may lose a few minutes (1650-01-01 00:00:00 becomes 1649-12-31 23:52:58)

Use the following code to avoid that

new Timestamp(localDateTime.getYear() - 1900, localDateTime.getMonthOfYear() - 1, localDateTime.getDayOfMonth(), localDateTime.getHourOfDay(), localDateTime.getMinuteOfHour(), localDateTime.getSecondOfMinute(), fractional);

With data.table, the solutions is:

DT[, idnat2 := ifelse(idbp %in% "foreign", "foreign", 
        ifelse(idbp %in% c("colony", "overseas"), "overseas", "mainland" ))]

The ifelse is vectorized. The if-else is not. Here, DT is:

    idnat     idbp
1  french mainland
2  french   colony
3  french overseas
4 foreign  foreign

This gives:

   idnat     idbp   idnat2
1:  french mainland mainland
2:  french   colony overseas
3:  french overseas overseas
4: foreign  foreign  foreign

An other example would be on the "created_on" column where you want to let the database handle the date creation

I got it

Cells(1, 1).Value = StartDate
Cells(1, 1).NumberFormat = "dd/mm/yyyy"

Basically, I need to set the cell format, instead of setting the date.

There are multiple ways to do it, let's run this script called exercise.sh

#!/usr/bin/env bash

> file1.txt cat <<< "This is a here-string with random value $RANDOM"

# Or if you prefer to see what is happening and write to file as well
tee file2.txt <<< "Here is another here-string I can see and write to file"

# if you want to work multiline easily
cat <<EOF > file3.txt
You don't need to escape any quotes here, $ marks start of variables, unless escaped.
This is random value from variable $RANDOM
This is literal \$RANDOM
EOF

# Let's say you have a variable with multiline text and you want to manipulate it
a="
1
2
3
33
"

# Assume I want to have lines containing "3". Instead of grep it can even be another script
a=$(echo "$a" | grep 3)

# Then you want to write this to a file, although here-string is fine,
# if you don't need single-liner command, prefer heredoc
# Herestring. (If it's single liner, variable needs to be quoted to preserve newlines)
> file4.txt cat <<< "$a"
# Heredoc
cat <<EOF > file5.txt
$a
EOF

This is the output you should see:

$ bash exercise.sh
Here is another here-string I can see and write to file

And files should contain these:

$ ls
exercise.sh  file1.txt  file2.txt  file3.txt  file4.txt  file5.txt
$ cat file1.txt
This is a here-string with random value 20914
$ cat file2.txt
Here is another here-string I can see and write to file
$ cat file3.txt
You don't need to escape any quotes here, $ marks start of variables, unless escaped.
This is random value from variable 15899
This is literal $RANDOM
$ cat file4.txt
3
33
$ cat file5.txt
3
33

This will be useful..

.list-item{_x000D_
  margin-right:-10px;_x000D_
   margin-top:10px;_x000D_
    margin-bottom: 10px;_x000D_
    border: 1px solid #eee;_x000D_
    padding: 0px;_x000D_
  }

<div class="col-md-4">_x000D_
  <div class="list-item">_x000D_
      <h2>Your name</h2> _x000D_
  </div>_x000D_
</div>_x000D_
<div class="col-md-4">_x000D_
   <div class="list-item"></div>_x000D_
</div>

If use want to increase or decrease further margin in right side of the box then simply edit margin-right property of list-item.

sample output

This is a code sample for grid system with equal height.

#outer{
width: 100%;
margin-top: 1rem;
display: flex;
height:auto;
}

Above is the CSS for outer div

#inner{
width: 20%;
float: left;
border: 1px solid;
}

Above is the inner div

Hope this help you

In order to verify a client certificate is being sent to the server, you need to analyze the output from the combination of the -state and -debug flags.

First as a baseline, try running

$ openssl s_client -connect host:443 -state -debug

You'll get a ton of output, but the lines we are interested in look like this:

SSL_connect:SSLv3 read server done A
write to 0x211efb0 [0x21ced50] (12 bytes => 12 (0xC))
0000 - 16 03 01 00 07 0b 00 00-03                        .........
000c - <SPACES/NULS>
SSL_connect:SSLv3 write client certificate A

What's happening here:

• The -state flag is responsible for displaying the end of the previous section:

  SSL_connect:SSLv3 read server done A  
  

  This is only important for helping you find your place in the output.

• Then the -debug flag is showing the raw bytes being sent in the next step:

  write to 0x211efb0 [0x21ced50] (12 bytes => 12 (0xC))
  0000 - 16 03 01 00 07 0b 00 00-03                        .........
  000c - <SPACES/NULS>
  

• Finally, the -state flag is once again reporting the result of the step that -debug just echoed:

  SSL_connect:SSLv3 write client certificate A
  

So in other words: s_client finished reading data sent from the server, and sent 12 bytes to the server as (what I assume is) a "no client certificate" message.

If you repeat the test, but this time include the -cert and -key flags like this:

$ openssl s_client -connect host:443 \
   -cert cert_and_key.pem \
   -key cert_and_key.pem  \
   -state -debug

your output between the "read server done" line and the "write client certificate" line will be much longer, representing the binary form of your client certificate:

SSL_connect:SSLv3 read server done A
write to 0x7bd970 [0x86d890] (1576 bytes => 1576 (0x628))
0000 - 16 03 01 06 23 0b 00 06-1f 00 06 1c 00 06 19 31   ....#..........1
(*SNIP*)
0620 - 95 ca 5e f4 2f 6c 43 11-                          ..^%/lC.
SSL_connect:SSLv3 write client certificate A

The 1576 bytes is an excellent indication on its own that the cert was transmitted, but on top of that, the right-hand column will show parts of the certificate that are human-readable: You should be able to recognize the CN and issuer strings of your cert in there.

How can you get the tree-like view of commits in terminal?

git log --graph --oneline --all

is a good start.

You may get some strange letters. They are ASCII codes for colors and structure. To solve this problem add the following to your .bashrc:

export LESS="-R"

such that you do not need use Tig's ASCII filter by

git log --graph --pretty=oneline --abbrev-commit | tig   // Masi needed this 

The article text-based graph from Git-ready contains other options:

git log --graph --pretty=oneline --abbrev-commit

Regarding the article you mention, I would go with Pod's answer: ad-hoc hand-made output.

Jakub Narebski mentions in the comments tig, a ncurses-based text-mode interface for git. See their releases.
It added a --graph option back in 2007.

• JMXConsoleTools
• eclipse-jmx
• ServiceMixJMXConsole

For anyone needing just top or left position, slight modifications to @Nickf's readable code does the trick.

function getTopPos(el) {
    for (var topPos = 0;
        el != null;
        topPos += el.offsetTop, el = el.offsetParent);
    return topPos;
}

and

function getLeftPos(el) {
    for (var leftPos = 0;
        el != null;
        leftPos += el.offsetLeft, el = el.offsetParent);
    return leftPos;
}

Let's look at one of the most popular SPA sites, GMail.

1. SPA is extremely good for very responsive sites:

Server-side rendering is not as hard as it used to be with simple techniques like keeping a #hash in the URL, or more recently HTML5 pushState. With this approach the exact state of the web app is embedded in the page URL. As in GMail every time you open a mail a special hash tag is added to the URL. If copied and pasted to other browser window can open the exact same mail (provided they can authenticate). This approach maps directly to a more traditional query string, the difference is merely in the execution. With HTML5 pushState() you can eliminate the #hash and use completely classic URLs which can resolve on the server on the first request and then load via ajax on subsequent requests.

2. With SPA we don't need to use extra queries to the server to download pages.

The number of pages user downloads during visit to my web site?? really how many mails some reads when he/she opens his/her mail account. I read >50 at one go. now the structure of the mails is almost the same. if you will use a server side rendering scheme the server would then render it on every request(typical case). - security concern - you should/ should not keep separate pages for the admins/login that entirely depends upon the structure of you site take paytm.com for example also making a web site SPA does not mean that you open all the endpoints for all the users I mean I use forms auth with my spa web site. - in the probably most used SPA framework Angular JS the dev can load the entire html temple from the web site so that can be done depending on the users authentication level. pre loading html for all the auth types isn't SPA.

3. May be any other advantages? Don't hear about any else..

• these days you can safely assume the client will have javascript enabled browsers.
• only one entry point of the site. As I mentioned earlier maintenance of state is possible you can have any number of entry points as you want but you should have one for sure.
• even in an SPA user only see to what he has proper rights. you don't have to inject every thing at once. loading diff html templates and javascript async is also a valid part of SPA.

Advantages that I can think of are:

1. rendering html obviously takes some resources now every user visiting you site is doing this. also not only rendering major logics are now done client side instead of server side.
2. date time issues - I just give the client UTC time is a pre set format and don't even care about the time zones I let javascript handle it. this is great advantage to where I had to guess time zones based on location derived from users IP.
3. to me state is more nicely maintained in an SPA because once you have set a variable you know it will be there. this gives a feel of developing an app rather than a web page. this helps a lot typically in making sites like foodpanda, flipkart, amazon. because if you are not using client side state you are using expensive sessions.
4. websites surely are extremely responsive - I'll take an extreme example for this try making a calculator in a non SPA website(I know its weird).

Updates from Comments

It doesn't seem like anyone mentioned about sockets and long-polling. If you log out from another client say mobile app, then your browser should also log out. If you don't use SPA, you have to re-create the socket connection every time there is a redirect. This should also work with any updates in data like notifications, profile update etc

An alternate perspective: Aside from your website, will your project involve a native mobile app? If yes, you are most likely going to be feeding raw data to that native app from a server (ie JSON) and doing client-side processing to render it, correct? So with this assertion, you're ALREADY doing a client-side rendering model. Now the question becomes, why shouldn't you use the same model for the website-version of your project? Kind of a no-brainer. Then the question becomes whether you want to render server-side pages only for SEO benefits and convenience of shareable/bookmarkable URLs

I've created an open source CodePlex project that does this. You can download the NuGet package from here.

<enumComboBox:EnumComboBox EnumType="{x:Type demoApplication:Status}" SelectedValue="{Binding Status}" />

Let's presume your code also had an #else statement which defined a null stub function, addressing one of Jon Skeet's points. There's a second important distinction between the two.

Suppose the #if DEBUG or Conditional function exists in a DLL which is referenced by your main project executable. Using the #if, the evaluation of the conditional will be performed with regard to the library's compilation settings. Using the Conditional attribute, the evaluation of the conditional will be performed with regard to the compilation settings of the invoker.

<html>
<head>
<style> 
input[type=text] {
    width: 50%;
    box-sizing: border-box;
    border: 2px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    background-color: white;
    background-image: url('searchicon.png');
    background-position: 10px 10px; 
    background-repeat: no-repeat;
    padding: 12px 20px 12px 40px;
}
</style>
</head>
<body>

<p>Input with icon:</p>

<form>
  <input type="text" name="search" placeholder="Search..">
</form>

</body>
</html>

jQuery.load()

$('#summary').load('ajax.php', function() {
  alert('Loaded.');
});

import json
weather = urllib2.urlopen('url')
wjson = weather.read()
wjdata = json.loads(wjson)
print wjdata['data']['current_condition'][0]['temp_C']

What you get from the url is a json string. And your can't parse it with index directly. You should convert it to a dict by json.loads and then you can parse it with index.

Instead of using .read() to intermediately save it to memory and then read it to json, allow json to load it directly from the file:

wjdata = json.load(urllib2.urlopen('url'))

Please, see oficial encode() and decode() documentation from codecs library. utf-8 is the default encoding for the functions, but there are severals standard encodings in Python 3, like latin_1 or utf_32.

It is possible to redirect from an iframe, but not to get information from the parent.

Try gzipping some data through the gzip libary like this...

import gzip
content = "Lots of content here"
f = gzip.open('Onlyfinnaly.log.gz', 'wb')
f.write(content)
f.close()

... then run your code as posted ...

import gzip
f=gzip.open('Onlyfinnaly.log.gz','rb')
file_content=f.read()
print file_content

This method worked for me as for some reason the gzip library fails to read some files.

Slicing works (and is the preferred approach), but just an alternative if more operations are needed (but then converting to a list wouldn't hurt anyway):

>>> a = '123456789'
>>> b = bytearray(a)
>>> del b[3]
>>> b
bytearray(b'12356789')
>>> str(b)
'12356789'

From Zvon.org XSLT Reference:

XPath function: boolean contains (string, string) 

Hope this helps.

Go to http://www.anindya.com/php-5-4-3-and-php-5-3-13-x64-64-bit-for-windows/ and download the cURL version that corresponds to your PHP version under "Fixed curl extensions:".

So if you have PHP 5.3.13, download "php_curl-5.3.13-VC9-x64.zip". Try the "VC" version first. Then replace the php_curl.dll in ext folder. This worked for me.

From ggplot 2.2.0 labels can easily be stacked by using position = position_stack(vjust = 0.5) in geom_text.

ggplot(Data, aes(x = Year, y = Frequency, fill = Category, label = Frequency)) +
  geom_bar(stat = "identity") +
  geom_text(size = 3, position = position_stack(vjust = 0.5))

Also note that "position_stack() and position_fill() now stack values in the reverse order of the grouping, which makes the default stack order match the legend."

Answer valid for older versions of ggplot:

Here is one approach, which calculates the midpoints of the bars.

library(ggplot2)
library(plyr)

# calculate midpoints of bars (simplified using comment by @DWin)
Data <- ddply(Data, .(Year), 
   transform, pos = cumsum(Frequency) - (0.5 * Frequency)
)

# library(dplyr) ## If using dplyr... 
# Data <- group_by(Data,Year) %>%
#    mutate(pos = cumsum(Frequency) - (0.5 * Frequency))

# plot bars and add text
p <- ggplot(Data, aes(x = Year, y = Frequency)) +
     geom_bar(aes(fill = Category), stat="identity") +
     geom_text(aes(label = Frequency, y = pos), size = 3)

The accepted answer is not always correct. If you configure binary logging on MySQL, you can rollback the database to any previous point you still have a snapshot and binlog for.

7.5 Point-in-Time (Incremental) Recovery Using the Binary Log is a good starting point for learning about this facility.

Though you cannot convert an OutputStream to an InputStream, java provides a way using PipedOutputStream and PipedInputStream that you can have data written to a PipedOutputStream to become available through an associated PipedInputStream.
Sometime back I faced a similar situation when dealing with third party libraries that required an InputStream instance to be passed to them instead of an OutputStream instance.
The way I fixed this issue is to use the PipedInputStream and PipedOutputStream.
By the way they are tricky to use and you must use multithreading to achieve what you want. I recently published an implementation on github which you can use.
Here is the link . You can go through the wiki to understand how to use it.

A Function To Do This

extract () {
  if [ -f $1 ] ; then
      case $1 in
          *.tar.bz2)   tar xvjf $1    ;;
          *.tar.gz)    tar xvzf $1    ;;
          *.bz2)       bunzip2 $1     ;;
          *.rar)       rar x $1       ;;
          *.gz)        gunzip $1      ;;
          *.tar)       tar xvf $1     ;;
          *.tbz2)      tar xvjf $1    ;;
          *.tgz)       tar xvzf $1    ;;
          *.zip)       unzip $1       ;;
          *.Z)         uncompress $1  ;;
          *.7z)        7z x $1        ;;
          *)           echo "don't know '$1'..." ;;
      esac
  else
      echo "'$1' is not a valid file!"
  fi
}

Other Note

In response to Aquarius Power in the comment above, We need to store the regex on a var

The variable BASH_REMATCH is set after you match the expression, and ${BASH_REMATCH[n]} will match the nth group wrapped in parentheses ie in the following ${BASH_REMATCH[1]} = "compressed" and ${BASH_REMATCH[2]} = ".gz"

if [[ "compressed.gz" =~ ^(.*)(\.[a-z]{1,5})$ ]]; 
then 
  echo ${BASH_REMATCH[2]} ; 
else 
  echo "Not proper format"; 
fi

(The regex above isn't meant to be a valid one for file naming and extensions, but it works for the example)

If you want to know the user version in your code, then you can use using app() helper function

app()->version();

It is defined in this file ../src/Illuminate/Foundation/Application.php

Hope it will help :)

Based on your edit and comments.. would this be what you're after?

byte[] newByteArray = UTF8Encoding.UTF8.GetBytes(Convert.ToBase64String(currentByteArray));

you can try to download packages from mod

go get -v all

Like this:

@Html.DropDownListFor(model => model.Status, new List<SelectListItem> 
       { new SelectListItem{Text="Active", Value="True"},
         new SelectListItem{Text="Deactive", Value="False"}},"Select One")

If you want Active to be selected by default then use Selected property of SelectListItem:

@Html.DropDownListFor(model => model.Status, new List<SelectListItem> 
           { new SelectListItem{Text="Active", Value="True",Selected=true},
             new SelectListItem{Text="Deactive", Value="False"}},"Select One")

If using SelectList, then you have to use this overload and specify SelectListItem Value property which you want to set selected:

@Html.DropDownListFor(model => model.title, 
                     new SelectList(new List<SelectListItem>
  {
      new SelectListItem { Text = "Active" , Value = "True"},
      new SelectListItem { Text = "InActive", Value = "False" }
  },
    "Value", // property to be set as Value of dropdown item
    "Text",  // property to be used as text of dropdown item
    "True"), // value that should be set selected of dropdown
     new { @class = "form-control" })

This has been plaguing me for years, on and off. There are a number of fixes around, but they seem hit and miss. It was still occurring in Excel 2010 (happening to me May 2014), and is still occurring in Excel 2013 by some reports. The best description I have found that matches my situation at least (Excel 2010, no RDP involved, no Print Preview involved) is here:

Microsoft Excel Support Team Blog: ActiveX and form controls resize themselves when clicked or doing a print preview (in Excel 2010)

(This might not help for users of Excel 2013 sorry)

EDIT: Adding detail in case technet link ever goes dead, the technet article says:

FIRSTLY install Microsoft Hotfix 2598144 for Excel 2010, available: here.

SECONDLY, if your symptom is "An ActiveX button changes to the incorrect size after you click it in an Excel 2010 worksheet", then you should:

• Click Start, click Run, type regedit in the Open box, and then click OK.
• Locate and then select the following registry subkey HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Options
• On the Edit menu, point to New, and then click DWORD (32-bit) value.
• Type LegacyAnchorResize, and then press Enter.
• In the Details pane, right-click LegacyAnchorResize, and then click Modify.
• In the Value data box, type 1, and then click OK.
• Exit Registry Editor.

OR SECONDLY, if your symptom is "A button form control is displayed incorrectly in a workbook after you view the print preview of the workbook in Excel 2010", then you should:

• Click Start, click Run, type regedit in the Open box, and then click OK.
• Locate and then select the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Options
• On the Edit menu, point to New, and then click DWORD (32-bit) value.
• Type MultiSheetPrint, and then press Enter.
• In the Details pane, right-click MultiSheetPrint, and then click Modify.
• In the Value data box, type 1, and then click OK.
• Select the following registry subkey again: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Options
• On the Edit menu, point to New, and then click DWORD (32-bit) value.
• Type LegacyAnchorResize, and then press Enter.
• In the Details pane, right-click LegacyAnchorResize, and then click Modify.
• In the Value data box, type 1, and then click OK.
• Exit Registry Editor.

OR SECONDLY, if your symptom is "An ActiveX button is changed to an incorrect size in an Excel 2010 worksheet after you view the print preview of the worksheet", then you should:

• Click Start, click Run, type regedit in the Open box, and then click OK.
• Locate and then select the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Options
• On the Edit menu, point to New, and then click DWORD (32-bit) value.
• Type LegacyAnchorResize, and then press Enter.
• In the Details pane, right-click LegacyAnchorResize, and then click Modify.
• In the Value data box, type 1, and then click OK.
• Exit Registry Editor.

Good luck. This issue is such a pain...

LIKE should work in sqlite:

require(sqldf)
df <- data.frame(name = c('bob','robert','peter'),id=c(1,2,3))
sqldf("select * from df where name LIKE '%er%'")
    name id
1 robert  2
2  peter  3

Use scikit-learn:

from sklearn.preprocessing import MinMaxScaler
data = np.array([1,2,3]).reshape(-1, 1)
scaler = MinMaxScaler()
scaler.fit(data)
print(scaler.transform(data))

If you want to change your number into a list of those numbers, I would first cast it to a string, then casting it to a list will naturally break on each character:

[int(x) for x in str(n)]

Just wrap it as a function, then call this function from your background thread.

public void debugMsg(String msg) {
    final String str = msg;
    runOnUiThread(new Runnable() {
        @Override
        public void run() {
            mInfo.setText(str);
        }
    });
}

Copy-and-paste version of the winner answer :)

Create this file with only this content:

$ sudo vi /etc/docker/daemon.json

  {
      "graph": "/my-docker-images"
  }

Tested on Ubuntu 16.04.2 LTS in docker 1.12.6

it is enough to modify something in your text editor and reload localhost. all your connection will be lost nd you have opsibility to ng serve the new project in the console.

Another alternative for this (older) question:

import datetime
import pytz
import time

pacific=pytz.timezone('US/Pacific')
now=datetime.datetime.now()
# pacific.dst(now).total_seconds() yields 3600 secs. [aka 1 hour]
time.strftime("%-H", time.gmtime(pacific.dst(now).total_seconds()))
'1'

The above is a good way to tell if your current time zone is actually in daylight savings time or not. (It provides an offset of 0 or 1.) Anyway, the real work is being done by time.strftime("%H:%M:%S", time.gmtime(36901)) which does work on the output of gmtime().

>>> time.strftime("%H:%M:%S",time.gmtime(36901))  # secs = 36901
'10:15:01'

And, that's it! (NOTE: Here's a link to format specifiers for time.strftime(). ...)

Here is a method I use to get the last xx of a string:

public static String takeLast(String value, int count) {
    if (value == null || value.trim().length() == 0 || count < 1) {
        return "";
    }

    if (value.length() > count) {
        return value.substring(value.length() - count);
    } else {
        return value;
    }
}

Then use it like so:

String testStr = "this is a test string";
String last1 = takeLast(testStr, 1); //Output: g
String last4 = takeLast(testStr, 4); //Output: ring

An abstract class can not be directly instantiated, but must be derived from to be usable. A class MUST be abstract if it contains abstract methods: either directly

abstract class Foo {
    abstract void someMethod();
}

or indirectly

interface IFoo {
    void someMethod();
}

abstract class Foo2 implements IFoo {
}

However, a class can be abstract without containing abstract methods. Its a way to prevent direct instantation, e.g.

abstract class Foo3 {
}

class Bar extends Foo3 {

}

Foo3 myVar = new Foo3(); // illegal! class is abstract
Foo3 myVar = new Bar(); // allowed!

The latter style of abstract classes may be used to create "interface-like" classes. Unlike interfaces an abstract class is allowed to contain non-abstract methods and instance variables. You can use this to provide some base functionality to extending classes.

Another frequent pattern is to implement the main functionality in the abstract class and define part of the algorithm in an abstract method to be implemented by an extending class. Stupid example:

abstract class Processor {
    protected abstract int[] filterInput(int[] unfiltered);

    public int process(int[] values) {
        int[] filtered = filterInput(values);
        // do something with filtered input
    }
}

class EvenValues extends Processor {
    protected int[] filterInput(int[] unfiltered) {
        // remove odd numbers
    }
}

class OddValues extends Processor {
    protected int[] filterInput(int[] unfiltered) {
        // remove even numbers
    }
}

You can try creating a css for your font with font-face (like explained here)

Step #1

Create a css file with font face and place it somewhere, like in assets/fonts

customfont.css

@font-face {
    font-family: YourFontFamily;
    src: url("/assets/font/yourFont.otf") format("truetype");
}

Step #2

Add the css to your .angular-cli.json in the styles config

"styles":[
 //...your other styles
 "assets/fonts/customFonts.css"
 ]

Do not forget to restart ng serve after doing this

Step #3

Use the font in your code

component.css

span {font-family: YourFontFamily; }

One can use the Jackson library as well.

Add Maven Dependency:

<dependency>
  <groupId>com.fasterxml.jackson.core</groupId> 
  <artifactId>jackson-core</artifactId>
</dependency>

Simply do this:

ObjectMapper mapper = new ObjectMapper();
String json = mapper.writeValueAsString( serializableObject );

$("#select_id").find("option:selected").text();

It is helpful if your control is on Server side. In .NET it looks like:

$('#<%= dropdownID.ClientID %>').find("option:selected").text();

Why?

You asked why it happens, let's see:

The official language specificaion dictates a call to the internal [[GetValue]] method. Your .attr returns undefined and you're trying to access its length.

If Type(V) is not Reference, return V.

This is true, since undefined is not a reference (alongside null, number, string and boolean)

Let base be the result of calling GetBase(V).

This gets the undefined part of myVar.length .

If IsUnresolvableReference(V), throw a ReferenceError exception.

This is not true, since it is resolvable and it resolves to undefined.

If IsPropertyReference(V), then

This happens since it's a property reference with the . syntax.

Now it tries to convert undefined to a function which results in a TypeError.

If you need it to work on both Mac and Windows, you can use QueryTables:

With ActiveSheet.QueryTables.Add(Connection:="URL;http://carbon.brighterplanet.com/flights.txt", Destination:=Range("A2"))
    .PostText = "origin_airport=MSN&destination_airport=ORD"
    .RefreshStyle = xlOverwriteCells
    .SaveData = True
    .Refresh
End With

Notes:

• Regarding output... I don't know if it's possible to return the results to the same cell that called the VBA function. In the example above, the result is written into A2.
• Regarding input... If you want the results to refresh when you change certain cells, make sure those cells are the argument to your VBA function.
• This won't work on Excel for Mac 2008, which doesn't have VBA. Excel for Mac 2011 got VBA back.

For more details, you can see my full summary about "using web services from Excel."

You want awk.

This would be a quick and dirty hack:

awk -F "\"" '{print $2}' /tmp/file.txt

PortMappingEnabled
PortMappingLeaseDuration
RemoteHost
ExternalPort
ExternalPortEndRange
InternalPort
PortMappingProtocol
InternalClient
PortMappingDescription

The answers from freedompeace, Kiyarash and Sam Vloeberghs:

.rar    application/x-rar-compressed, application/octet-stream
.zip    application/zip, application/octet-stream, application/x-zip-compressed, multipart/x-zip

I would do a check on the file name too. Here is how you could check if the file is a RAR or ZIP file. I tested it by creating a quick command line application.

<?php

if (isRarOrZip($argv[1])) {
    echo 'It is probably a RAR or ZIP file.';
} else {
    echo 'It is probably not a RAR or ZIP file.';
}

function isRarOrZip($file) {
    // get the first 7 bytes
    $bytes = file_get_contents($file, FALSE, NULL, 0, 7);
    $ext = strtolower(substr($file, - 4));

    // RAR magic number: Rar!\x1A\x07\x00
    // http://en.wikipedia.org/wiki/RAR
    if ($ext == '.rar' and bin2hex($bytes) == '526172211a0700') {
        return TRUE;
    }

    // ZIP magic number: none, though PK\003\004, PK\005\006 (empty archive), 
    // or PK\007\008 (spanned archive) are common.
    // http://en.wikipedia.org/wiki/ZIP_(file_format)
    if ($ext == '.zip' and substr($bytes, 0, 2) == 'PK') {
        return TRUE;
    }

    return FALSE;
}

Notice that it still won't be 100% certain, but it is probably good enough.

$ rar.exe l somefile.zip
somefile.zip is not RAR archive

But even WinRAR detects non RAR files as SFX archives:

$ rar.exe l somefile.srr
SFX Volume somefile.srr

JavaScript

$.listen('click', '#captcha', function() {
    $('#captcha-block').html('<div id="loading" style="width: 70px; height: 40px; display: inline-block;" />');
    $.get("/captcha/new", null, function(data) {
        $('#captcha-block').html(data);
    }); 
    return false;
});

CSS

#loading { background: url(/image/loading.gif) no-repeat center; }

I had ran into similar problem today. Tried all the above solutions but didn't worked. So posting my solution here.

Don't forget to uncheck Tail-long Backup before restore

Hope it help others too!

Sorry for my bad English. Checking Mails using Python with MAPI is easier,

outlook =win32com.client.Dispatch("Outlook.Application").GetNamespace("MAPI")
folder = outlook.Folders[5]
Subfldr = folder.Folders[5]
messages_REACH = Subfldr.Items
message = messages_REACH.GetFirst()

Here we can get the most first mail into the Mail box, or into any sub folder. Actually, we need to check the Mailbox number & orientation. With the help of this analysis we can check each mailbox & its sub mailbox folders.

Similarly please find the below code, where we can see, the last/ earlier mails. How we need to check.

`outlook =win32com.client.Dispatch("Outlook.Application").GetNamespace("MAPI")
folder = outlook.Folders[5]
Subfldr = folder.Folders[5]
messages_REACH = Subfldr.Items
message = messages_REACH.GetLast()`

With this we can get most recent email into the mailbox. According to the above mentioned code, we can check our all mail boxes, & its sub folders.

The &nKByte creates a temporary value, which cannot be bound to a reference to non-const.

You could change void test(float *&x) to void test(float * const &x) or you could just drop the pointer altogether and use void test(float &x); /*...*/ test(nKByte);.

Sometimes the simulator you have might not be the simulator specified in Build Settings. Make sure that simulator package is downloaded for your IOS Deployment Target

You can make function getStyles that'll take an element and other arguments are properties that's values you want.

const convertRestArgsIntoStylesArr = ([...args]) => {
    return args.slice(1);
}

const getStyles = function () {
    const args = [...arguments];
    const [element] = args;

    let stylesProps = [...args][1] instanceof Array ? args[1] : convertRestArgsIntoStylesArr(args);

    const styles = window.getComputedStyle(element);
    const stylesObj = stylesProps.reduce((acc, v) => {
        acc[v] = styles.getPropertyValue(v);
        return acc;
    }, {});

    return stylesObj;
};

Now, you can use this function like this:

const styles = getStyles(document.body, "height", "width");

OR

const styles = getStyles(document.body, ["height", "width"]);

In laymen's terms an unsigned int is an integer that can not be negative and thus has a higher range of positive values that it can assume. A signed int is an integer that can be negative but has a lower positive range in exchange for more negative values it can assume.

If You have already updated your SDK and You also using google-play-services then you need to take care of the dependency because there are some kind of conflics with :

Follow the below : compile 'com.google.android.gms:play-services:+' Replace by compile 'com.google.android.gms:play-services:6.5.87'

Note: Here '6.5.87' is the google-play-service version. I hope it will help..

Crazy amount of complicated answers here. If you don't intend to process nodeJS files/database but just want to serve static html/css/js/images as your question suggest then simply install the pushstate-server module or similar;

Here's a "one liner" that will create and launch a mini site. Simply paste that entire block in your terminal in the appropriate directory.

mkdir mysite; \
cd mysite; \
npm install pushstate-server --save; \
mkdir app; \
touch app/index.html; \
echo '<h1>Hello World</h1>' > app/index.html; \
touch server.js; \
echo "var server = require('pushstate-server');server.start({ port: 3000, directory: './app' });" > server.js; \
node server.js

Open browser and go to http://localhost:3000. Done.

The server will use the app dir as the root to serve files from. To add additional assets just place them inside that directory.

So its the indentation that matters. As other users here have pointed out to you, when the indentation level is at the same point as the def function declaration your function has ended. Keep in mind that you cannot mix tabs and spaces in Python. Most editors provide support for this.

We did a lot of research into logging, and decided that NLog was the best one to use.

See http://nlog-project.org/

Also see log4net vs. Nlog and http://www.dotnetlogging.com/comparison/

In my case, I use "sortedArrayUsingComparator" to sort an array. Look at the below code.

contactArray = [[NSArray arrayWithArray:[contactSet allObjects]] sortedArrayUsingComparator:^NSComparisonResult(ContactListData *obj1, ContactListData *obj2) {
    NSString *obj1Str = [NSString stringWithFormat:@"%@ %@",obj1.contactName,obj1.contactSurname];
    NSString *obj2Str = [NSString stringWithFormat:@"%@ %@",obj2.contactName,obj2.contactSurname];
    return [obj1Str compare:obj2Str];
}];

Also my object is,

@interface ContactListData : JsonData
@property(nonatomic,strong) NSString * contactName;
@property(nonatomic,strong) NSString * contactSurname;
@property(nonatomic,strong) NSString * contactPhoneNumber;
@property(nonatomic) BOOL isSelected;
@end

If you use the FIND_IN_SET function:

FIND_IN_SET(a, columnname) yields all the records that have "a" in them, alone or with others

AND

FIND_IN_SET(columnname, a) yields only the records that have "a" in them alone, NOT the ones with the others

So if record1 is (a,b,c) and record2 is (a)

FIND_IN_SET(columnname, a) yields only record2 whereas FIND_IN_SET(a, columnname) yields both records.

I have observed on Windows 2008 the Windows Error Reporting crash dumps get staged in the folder:

C:\Users\All Users\Microsoft\Windows\WER\ReportQueue

Which, starting with Windows Vista, is an alias for:

C:\ProgramData\Microsoft\Windows\WER\ReportQueue

From Visual Studio 2013 onwards, MSbuild comes as a part of Visual Studio. Earlier, MSBuild was installed as a part of. NET Framework.

MSBuild is installed directly under %ProgramFiles%. So, the path for MSBuild might be different depending on the version of Visual Studio.

For Visual Studio 2015, Path of MSBuild is "%ProgramFiles(x86)%\MSBuild\14.0\Bin\MSBuild.exe"

For Visual Studio 15 Preview, Path of MSBuild is "%ProgramFiles(x86)%\MSBuild\15.0\Bin\MSBuild.exe"

Also, Some new MSBuild properties has been added and some have been modified. For more information look here

Update 1: VS 2017

The location for the MSBuild has changed again with the release of Visual Studio 2017. Now the installation directory is under the %ProgramFiles(x86)%\Microsoft Visual Studio\2017\[VS Edition]\MSBuild\15.0\Bin\. Since, i have an Enterprise edition, the MSBuild location for my machine is "%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\MSbuild.exe"

The two most usual choices are GTK+, which has documentation links here, and is mostly used with C; or Qt which has documentation here and is more used with C++.

I posted these two as you do not specify an operating system and these two are pretty cross-platform.

When there is data already in HDFS, an external Hive table can be created to describe the data. It is called EXTERNAL because the data in the external table is specified in the LOCATION properties instead of the default warehouse directory.

When keeping data in the internal tables, Hive fully manages the life cycle of the table and data. This means the data is removed once the internal table is dropped. If the external table is dropped, the table metadata is deleted but the data is kept. Most of the time, an external table is preferred to avoid deleting data along with tables by mistake.

This is partly based on this earlier answer above by @A Boschman. In that solution, I found that the input size of the image greatly affected the ability of makeImageSpan() to properly center-align the image. Additionally, I found that the solution affected text spacing by creating unnecessary line spacing.

I found BaseImageSpan (from Facebook's Fresco library) to do the job particularly well:

 /**
 * Create an ImageSpan for the given icon drawable. This also sets the image size. Works best
 * with a square icon because of the sizing
 *
 * @param context       The Android Context.
 * @param drawableResId A drawable resource Id.
 * @param size          The desired size (i.e. width and height) of the image icon in pixels.
 *                      Use the lineHeight of the TextView to make the image inline with the
 *                      surrounding text.
 * @return An ImageSpan, aligned with the bottom of the text.
 */
private static BetterImageSpan makeImageSpan(Context context, int drawableResId, int size) {
    final Drawable drawable = context.getResources().getDrawable(drawableResId);
    drawable.mutate();
    drawable.setBounds(0, 0, size, size);
    return new BetterImageSpan(drawable, BetterImageSpan.ALIGN_CENTER);
}

Then supply your betterImageSpan instance to spannable.setSpan() as usual

Right-click on the column header and select Format Cells, the chose Date and select the desired date format. Those that are not recognized are ambiguous, and as such not interpreted as anything but that is resolved after applying formatting to the column. Note that for me, in Excel 2002 SP3, the dates given above are automatically and correctly interpreted as dates when pasting.

If you happen to use CRA with default yarn package manager use the following. Worked for me.

yarn remove node-sass 
yarn add [email protected]

I have only tested with EditText but you can use the method

public void setBackgroundResource (int resid)

to apply a style defined in an XML file.

Sine this method belongs to View I believe it will work with any UI element.

regards.

Also: Psyco vs. C++.

It's still a bad comparison, since noone would do the numbercrunchy stuff benchmarks tend to focus on in pure Python anyway. A better one would be comparing the performance of realistic applications, or C++ versus NumPy, to get an idea whether your program will be noticeably slower.

there are different ways of doing this. one way would be to write a script retrieving a command. like so:

var name="kieran";
document.write=(name);

or we could use the default JavaScript way to print it.

var name="kieran";
document.getElementById("output").innerHTML=name;

and the html code would be: 

<p id="output"></p>

i hope this helped :)

SELECT * 
FROM courses 
WHERE DATE_ADD(NOW(), INTERVAL 2 HOUR) > start_time

See Date and Time Functions for other date/time manipulation.

With Google Guava's Ints class, your method can be changed to:

public static int safeLongToInt(long l) {
    return Ints.checkedCast(l);
}

From the linked docs:

checkedCast

public static int checkedCast(long value)

Returns the int value that is equal to value, if possible.

Parameters: value - any value in the range of the int type

Returns: the int value that equals value

Throws: IllegalArgumentException - if value is greater than Integer.MAX_VALUE or less than Integer.MIN_VALUE

Incidentally, you don't need the safeLongToInt wrapper, unless you want to leave it in place for changing out the functionality without extensive refactoring of course.

refer here: https://nathanhoad.net/how-to-colours-in-git/

steps:

1. Open ~/.gitconfig for editing

   vi ~/.gitconfig

2. Paste following code:

   [color]
     ui = auto
   [color "branch"]
     current = yellow reverse
     local = yellow
     remote = green
   [color "diff"]
     meta = yellow bold
     frag = magenta bold
     old = red bold
     new = green bold
   [color "status"]
     added = yellow
     changed = green
     untracked = cyan
   

3. Save the file.

Just change any file in your local repo and do

git status

<% @images.each_with_index do |page, index| %>

<% end %>

You can try:

echo "USERNAME:NEWPASSWORD" | chpasswd

You can use the Windows API functions, such as GetPrivateProfileString() and GetPrivateProfileInt().

Run the following command, replacing PATH-TO-YOUR-FILE-WITH-SENSITIVE-DATA with the path to the file you want to remove, not just its filename. These arguments will:

1. Force Git to process, but not check out, the entire history of every branch and tag
2. Remove the specified file, as well as any empty commits generated as a result
3. Overwrite your existing tags

git filter-branch --force --index-filter "git rm --cached --ignore-unmatch PATH-TO-YOUR-FILE-WITH-SENSITIVE-DATA" --prune-empty --tag-name-filter cat -- --all

This will forcefully remove all references to the files from the active history of the repo.

Next step, to perform a GC cycle to force all references to the file to be expired and purged from the pack file. Nothing needs to be replaced in these commands.

git update-ref -d refs/original/refs/remotes/origin/master
git for-each-ref --format='delete %(refname)' refs/original | git update-ref --stdin
git reflog expire --expire=now --all
git gc --aggressive --prune=now

Here's a couple of extension methods I've jury-rigged together to convert IQueryables and IEnumerables from one type to another (i.e. DTO). It's mainly used to convert from a larger type (i.e. the type of the row in the database that has unneeded fields) to a smaller one.

The positive sides of this approach are:

• it requires almost no code to use - a simple call to .Transform<DtoType>() is all you need
• it works just like .Select(s=>new{...}) i.e. when used with IQueryable it produces the optimal SQL code, excluding Type1 fields that DtoType doesn't have.

LinqHelper.cs:

public static IQueryable<TResult> Transform<TResult>(this IQueryable source)
{
    var resultType = typeof(TResult);
    var resultProperties = resultType.GetProperties().Where(p => p.CanWrite);

    ParameterExpression s = Expression.Parameter(source.ElementType, "s");

    var memberBindings =
        resultProperties.Select(p =>
            Expression.Bind(typeof(TResult).GetMember(p.Name)[0], Expression.Property(s, p.Name))).OfType<MemberBinding>();

    Expression memberInit = Expression.MemberInit(
        Expression.New(typeof(TResult)),
        memberBindings
        );

    var memberInitLambda = Expression.Lambda(memberInit, s);

    var typeArgs = new[]
        {
            source.ElementType, 
            memberInit.Type
        };

    var mc = Expression.Call(typeof(Queryable), "Select", typeArgs, source.Expression, memberInitLambda);

    var query = source.Provider.CreateQuery<TResult>(mc);

    return query;
}

public static IEnumerable<TResult> Transform<TResult>(this IEnumerable source)
{
    return source.AsQueryable().Transform<TResult>();
}

You should use the StringFormat on the Binding. You can use either standard string formats, or custom string formats:

<TextBox Text="{Binding Value, StringFormat=N2}" />
<TextBox Text="{Binding Value, StringFormat={}{0:#,#.00}}" />

Note that the StringFormat only works when the target property is of type string. If you are trying to set something like a Content property (typeof(object)), you will need to use a custom StringFormatConverter (like here), and pass your format string as the ConverterParameter.

Edit for updated question

So, if your ViewModel defines the precision, I'd recommend doing this as a MultiBinding, and creating your own IMultiValueConverter. This is pretty annoying in practice, to go from a simple binding to one that needs to be expanded out to a MultiBinding, but if the precision isn't known at compile time, this is pretty much all you can do. Your IMultiValueConverter would need to take the value, and the precision, and output the formatted string. You'd be able to do this using String.Format.

However, for things like a ContentControl, you can much more easily do this with a Style:

<Style TargetType="{x:Type ContentControl}">
    <Setter Property="ContentStringFormat" 
            Value="{Binding Resolution, StringFormat=N{0}}" />
</Style>

Any control that exposes a ContentStringFormat can be used like this. Unfortunately, TextBox doesn't have anything like that.

As Jiri mentioned, you can use scp -r user@host:/some/remote/path /some/local/path to copy files recursively. This assumes that there's a single directory containing all of the files you want to transfer (and nothing else).

However, SFTP provides an alternative if you want to transfer files from multiple different directories, and the destinations are not identical:

sftp user@host << EOF
  get /some/remote/path1/file1 /some/local/path1/file1
  get /some/remote/path2/file2 /some/local/path2/file2
  get /some/remote/path3/file3 /some/local/path3/file3
EOF

This uses the "here doc" syntax to define a sequence of SFTP input commands. As an alternative, you could put the SFTP commands into a text file and execute sftp user@host -b batchFile.txt

$("#HowYouKnow option[value='" + theText + "']").attr('selected', 'selected'); // added single quotes

This is an old post and the links are no longer valid but because it came up early in a search I was doing I thought I should comment to help others understand the problem better.

By using float you are asking the browser to arrange your controls automatically. It responds by wrapping when the controls don't fit the width for their specified float arrangement. float:left, float:right or clear:left,clear:right,clear:both.

So if you want to force a bunch of float:left items to float uniformly into one left column then you need to make the browser decide to wrap/unwrap them at the same width. Because you don't want to do any scripting you can wrap all of the controls you want to float together in a single div. You would want to add a new wrapping div with a class like:

.LeftImages{
    float:left;
}

html

<div class="LeftImages">   
  <img...>   
  <img...> 
</div>

This div will automatically adjust to the width of the largest image and all the images will be floated left with the div all the time (no wrapping).

If you still want them to wrap you can give the div a width like width:30% and each of the images the float:left; style. Rather than adjust to the largest image it will vary in size and allow the contained images to wrap.

-- I like this as the data type and the format remains consistent with a date time data type

;with cte as(
    select 
        cast(utcdate as date) UtcDay, DATEPART(hour, utcdate) UtcHour, count(*) as Counts
    from dbo.mytable cd 
    where utcdate between '2014-01-14' and '2014-01-15'
    group by
        cast(utcdate as date), DATEPART(hour, utcdate)
)
select dateadd(hour, utchour, cast(utcday as datetime)) as UTCDateHour, Counts
from cte

You've got to override your Canvas's paint(Graphics g) method and perform your drawing there. See the paint() documentation.

As it states, the default operation is to clear the canvas, so your call to the canvas' graphics object doesn't perform as you would expect.

Public-key crypto is not for encrypting arbitrarily long files. One uses a symmetric cipher (say AES) to do the normal encryption. Each time a new random symmetric key is generated, used, and then encrypted with the RSA cipher (public key). The ciphertext together with the encrypted symmetric key is transferred to the recipient. The recipient decrypts the symmetric key using his private key, and then uses the symmetric key to decrypt the message.

The private key is never shared, only the public key is used to encrypt the random symmetric cipher.

For future Googlers i've a different approach to check if it's last element. It's similar to last lines in OP question.

This directly compares elements rather than just checking index numbers.

$yourset.each(function() {
    var $this = $(this);
    if($this[0] === $yourset.last()[0]) {
        //$this is the last one
    }
});

You do this by using mysqli_fetch_field method.

session_start();
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
$name = $_GET["username"];
$sql = "SELECT 'id' FROM Users WHERE username='$name' limit 1";
$result = mysqli_query($link, $sql);
if ($result !== false) {
    $value = mysqli_fetch_field($result);
    $_SESSION['myid'] = $value;
}

Note: you can do that by using mysql_fetch_field() method as well, but it will be deprecated in php v5.5

Consider a task that inputs data from the serial port. When new data arrives the serial port triggers an event. When the software services that event, it reads and processes the new data. The serial port has a hardware to store incoming data (2 on the MSP432, 16 on the TM4C123) such that if the buffer is full and more data arrives, the new data is lost. Is this system hard, firm, or soft real time?

It is hard real time because if the response is late, data may be lost.

Consider a hearing aid that inputs sounds from a microphone, manipulates the sound data, and then outputs the data to a speaker. The system usually has small and bounded jitter, but occasionally other tasks in the hearing aid cause some data to be late, causing a noise pulse on the speaker. Is this system hard, firm or soft real time?

It is firm real time because it causes an error that can be perceived but the effect is harmless and does not significantly alter the quality of the experience.

Consider a task that outputs data to a printer. When the printer is idle the printer triggers an event. When the software services that event, it sends more data to the printer. Is this system hard, firm or soft real time?

It is soft real time because the faster it responses the better, but the value of the system (bandwidth is amount of data printed per second) diminishes with latency.

UTAustinX: UT.RTBN.12.01x Realtime Bluetooth Networks

When I need to do this, I make the other values data-values and then use js to assign them to a hidden input

<select id=select>
<option value=1 data-othervalue=2 data-someothervalue=3>
//...
</select>

<input type=hidden name=otherValue id=otherValue />
<input type=hidden name=someOtherValue id=someOtherValue />

<script>
$('#select').change(function () {
var otherValue=$(this).find('option:selected').attr('data-othervalue');
var someOtherValue=$(this).find('option:selected').attr('data-someothervalue');
$('#otherValue').val(otherValue);
$('#someOtherValue').val(someOtherValue);
});
</script>

Laravel 5.6 method: https://laravel.com/docs/5.6/views#passing-data-to-views

Example, with sharing a model collection to all views (AppServiceProvider.php):

use Illuminate\Support\Facades\View;
use App\Product;

public function boot()
{
    $products = Product::all();
    View::share('products', $products);

}

There is no built-in functionality in VBS for that, however, you can use the FileSystemObject FileExists function for that :

Option Explicit
DIM fso    
Set fso = CreateObject("Scripting.FileSystemObject")

If (fso.FileExists("C:\Program Files\conf")) Then
  WScript.Echo("File exists!")
  WScript.Quit()
Else
  WScript.Echo("File does not exist!")
End If

WScript.Quit()

If you want to deploy an MVC application without installing MVC, you can deploy the MVC DLL's with your application. This gets around installing MVC 3. You can use features in some .Net 4.0 namespaces without installing .Net using a similar approach.

You can use httpx for that.

import httpx

async def get_async(url):
    async with httpx.AsyncClient() as client:
        return await client.get(url)

urls = ["http://google.com", "http://wikipedia.org"]

# Note that you need an async context to use `await`.
await asyncio.gather(*map(get_async, urls))

if you want a functional syntax, the gamla lib wraps this into get_async.

Then you can do

await gamla.map(gamla.get_async(10))(["http://google.com", "http://wikipedia.org"])

The 10 is the timeout in seconds.

(disclaimer: I am its author)

df.to_html() has a columns parameter.

Just pass the columns into the to_html() method.

df.to_html(columns=['A','B','C','D','E','F','G'])

See this list of php image libraries. Basically it's GD or Imagemagick.

For this case, where you want to get a Control of a Form and are receiving this error, then I have a little bypass for you.

Go to your Program.cs and change

Application.Run(new Form1());

to

public static Form1 form1 = new Form1(); // Place this var out of the constructor
Application.Run(form1);

Now you can access a control with

Program.form1.<Your control>

Also: Don't forget to set your Control-Access-Level to Public.

And yes I know, this answer does not fit to the question caller, but it fits to googlers who have this specific issue with controls.

This is very simple to do:

import matplotlib.pyplot as plt

plt.plot(<X AXIS VALUES HERE>, <Y AXIS VALUES HERE>, 'line type', label='label here')
plt.plot(<X AXIS VALUES HERE>, <Y AXIS VALUES HERE>, 'line type', label='label here')
plt.legend(loc='best')
plt.show()

You can keep adding plt.plot as many times as you like. As for line type, you need to first specify the color. So for blue, it's b. And for a normal line it's -. An example would be:

plt.plot(total_lengths, sort_times_heap, 'b-', label="Heap")

Wrap the modal into a connected container and perform the async operation in here. This way you can reach both the dispatch to trigger actions and the onClose prop too. To reach dispatch from props, do not pass mapDispatchToProps function to connect.

class ModalContainer extends React.Component {
  handleDelete = () => {
    const { dispatch, onClose } = this.props;
    dispatch({type: 'DELETE_POST'});

    someAsyncOperation().then(() => {
      dispatch({type: 'DELETE_POST_SUCCESS'});
      onClose();
    })
  }

  render() {
    const { onClose } = this.props;
    return <Modal onClose={onClose} onSubmit={this.handleDelete} />
  }
}

export default connect(/* no map dispatch to props here! */)(ModalContainer);

The App where the modal is rendered and its visibility state is set:

class App extends React.Component {
  state = {
    isModalOpen: false
  }

  handleModalClose = () => this.setState({ isModalOpen: false });

  ...

  render(){
    return (
      ...
      <ModalContainer onClose={this.handleModalClose} />  
      ...
    )
  }

}

In my case, I needed proxy_ajp module.

a2enmod proxy proxy_http proxy_ajp 

There are at least two ways for achieving this in base graph (my examples are for the x-axis, but work the same for the y-axis):

1. Use par(xaxp = c(x1, x2, n)) or plot(..., xaxp = c(x1, x2, n)) to define the position (x1 & x2) of the extreme tick marks and the number of intervals between the tick marks (n). Accordingly, n+1 is the number of tick marks drawn. (This works only if you use no logarithmic scale, for the behavior with logarithmic scales see ?par.)

2. You can suppress the drawing of the axis altogether and add the tick marks later with axis().
   To suppress the drawing of the axis use plot(... , xaxt = "n").
   Then call axis() with side, at, and labels: axis(side = 1, at = v1, labels = v2). With side referring to the side of the axis (1 = x-axis, 2 = y-axis), v1 being a vector containing the position of the ticks (e.g., c(1, 3, 5) if your axis ranges from 0 to 6 and you want three marks), and v2 a vector containing the labels for the specified tick marks (must be of same length as v1, e.g., c("group a", "group b", "group c")). See ?axis and my updated answer to a post on stats.stackexchange for an example of this method.

UPDATE 2:

See this answer . - 2019-11-05

You can also now have it auto-open Developer Tools in Pop-ups if they were open where you opened them from. For example, if you do not have Dev Tools open and you get a popup, it won't open with Dev Tools. But if you Have Dev Tools Open and then you click something, the popup will have Dev-Tools Automatically opened.

UPDATE:

Time has changed, you can now use --auto-open-devtools-for-tabs as in this answer – Wouter Huysentruit May 18 at 11:08

OP:

I played around with the startup string for Chrome on execute, but couldn't get it to persist to new tabs.
I also thought about a defined PATH method that you could invoke from prompt. This is possible with the SendKeys command, but again, only on a new instance. And DevTools doesn't persist to new tabs.

Browsing the Google Product Forums, there doesn't seem to be a built-in way to do this in Chrome. You'll have to use a keystroke solution or F12 as mentioned above.

I recommended it as a feature. I know I'm not the first either.

The problem in my case was that I entered a value IN THE LAST NOT DISABLED ELEMENT of the site and used tab to raise the onChange-Event. After that there is no next element to get the focus, so the "browser"-Focus switches to the browser-functionality (tabs, menu, and so on) and is not any longer inside the html-content.

To understand that, place a displayed, not disabled dummy-textbox at the end of your html-code. In that you can "park" the focus for later replacing. Should work. In my case. All other tries didnt work, also the setTimeout-Version.

Checked this out for about an hour, because it made me insane :)

Mätes

svn revert will undo any local changes you've made

parentElement.prepend(newFirstChild);

This is a new addition in (likely) ES7. It is now vanilla JS, probably due to the popularity in jQuery. It is currently available in Chrome, FF, and Opera. Transpilers should be able to handle it until it becomes available everywhere.

P.S. You can directly prepend strings

parentElement.prepend('This text!');

Links: developer.mozilla.org - Polyfill

You have not provided enough code to help You likely submit the form and reload the page OR you have an object on the page like an embedded PDF that steals the focus.

Here is the canonical plain javascript method of validating a form It can be improved with onubtrusive JS which will remove the inline script, but this is the starting point DEMO

function validate(formObj) {
  document.getElementById("errorMsg").innerHTML = "";    
  var quantity = formObj.quantity;
  if (isNaN(quantity)) {
    quantity.value="";
    quantity.focus();
    document.getElementById("errorMsg").innerHTML = "Only numeric value is allowed";
    return false;
  }
  return true; // allow submit
}   

Here is the HTML

<form onsubmit="return validate(this)">
    <input type="text" name="quantity" value="" />
    <input type="submit" />
</form>    
<span id="errorMsg"></span>

check up blur():

$('#textarea').blur()

source: http://api.jquery.com/blur/

I actually had an issue where my db was pretty much locked by the processes and a race condition with them, by the time I got one command executed refreshed and they had it locked again... I had to run the following commands back to back in SSMS and got me offline and from there I did my restore and came back online just fine, the two queries where:

First ran:

USE master
GO

DECLARE @kill varchar(8000) = '';
SELECT @kill = @kill + 'kill ' + CONVERT(varchar(5), spid) + ';'
FROM master..sysprocesses 
WHERE dbid = db_id('<yourDbName>')

EXEC(@kill);

Then immediately after (in second query window):

USE master ALTER DATABASE <yourDbName> SET OFFLINE WITH ROLLBACK IMMEDIATE

Did what I needed and then brought it back online. Thanks to all who wrote these pieces out for me to combine and solve my problem.

If your string is

foo="US/Central - 10:26 PM (CST)"

then

echo "${foo}" | cut -d ' ' -f3

will do the job.

You see the two empty -D entries in the g++ command line? They're causing the problem. You must have values in the -D items e.g. -DWIN32

if you're insistent on using something like -D$(SYSTEM) -D$(ENVIRONMENT) then you can use something like:

SYSTEM ?= generic
ENVIRONMENT ?= generic

in the makefile which gives them default values.

Your output looks to be missing the all important output:

<command-line>:0:1: error: macro names must be identifiers
<command-line>:0:1: error: macro names must be identifiers

just to clarify, what actually got sent to g++ was -D -DWindows_NT, i.e. define a preprocessor macro called -DWindows_NT; which is of course not a valid identifier (similarly for -D -I.)

$ export VAR=/home/me/mydir/file.c
$ export DIR=${VAR%/*}
$ echo "${DIR}"
/home/me/mydir

$ echo "${VAR##*/}"
file.c

To avoid dependency with basename and dirname

Use:

<html>
    <head>
        <title>Reload (Refresh) Page Using Jquery</title>
        <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
        <script type="text/javascript">
            $(document).ready(function () {
                $('#reload').click(function() {
                    window.location.reload();
                });
            });
        </script>
    </head>
    <body>
        <button id="reload" >Reload (Refresh) Page Using</button>
    </body>
</html>

If you are using Windows PowerShell you may get the error:

The '<' operator is reserved for future use.

In that case just type the command:

cmd

To switch to the cmd shell and then retype the command and it will work.

c:\xampp\mysql\bin\mysql -u root -p my_database < my_database_dump.sql

To get back to PowerShell type:

exit

1. You seem to be including one C file from anther. #include should normally be used with header files only.

2. Within the definition of struct ast_node you refer to struct AST_NODE, which doesn't exist. C is case-sensitive.

Submit is null because it is not part of activity_main.xml

When you call findViewById inside an Activity, it is going to look for a View inside your Activity's layout.

try this instead :

Submit = (Button)loginDialog.findViewById(R.id.Submit);

Another thing : you use

android:layout_below="@+id/LoginTitle"

but what you want is probably

android:layout_below="@id/LoginTitle"

See this question about the difference between @id and @+id.

Don't hesitate to watch heap to see memory leaks in event handlers keeping a reference to the element with a closure and the element keeping a reference to the event handler.

Garbage collector do not like circular references.

Usual memory leak case: admit an object has a ref to an element. That element has a ref to the handler. And the handler has a ref to the object. The object has refs to a lot of other objects. This object was part of a collection you think you have thrown away by unreferencing it from your collection. => the whole object and all it refers will remain in memory till page exit. => you have to think about a complete killing method for your object class or trust a mvc framework for example.

Moreover, don't hesitate to use the Retaining tree part of Chrome dev tools.

Like others, I had issues with Python 3.5.1/Anaconda 2.4.0 on OS X 10.11..

But I found a compatible package here:

https://anaconda.org/menpo/opencv3

It can be installed via the command line like so:

 conda install -c https://conda.anaconda.org/menpo opencv3

Worked like a charm. First time I've ever gotten OpenCV to work on 3.x!

The recommended way to do this is to use LocationClient:

First, define location update interval values. Adjust this to your needs.

private static final int MILLISECONDS_PER_SECOND = 1000;
private static final long UPDATE_INTERVAL = MILLISECONDS_PER_SECOND * UPDATE_INTERVAL_IN_SECONDS;
private static final int FASTEST_INTERVAL_IN_SECONDS = 1;
private static final long FASTEST_INTERVAL = MILLISECONDS_PER_SECOND * FASTEST_INTERVAL_IN_SECONDS;

Have your Activity implement GooglePlayServicesClient.ConnectionCallbacks, GooglePlayServicesClient.OnConnectionFailedListener, and LocationListener.

public class LocationActivity extends Activity implements 
GooglePlayServicesClient.ConnectionCallbacks, GooglePlayServicesClient.OnConnectionFailedListener, LocationListener {}

Then, set up a LocationClientin the onCreate() method of your Activity:

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mLocationClient = new LocationClient(this, this, this);

    mLocationRequest = LocationRequest.create();
    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
    mLocationRequest.setInterval(UPDATE_INTERVAL);
    mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
}

Add the required methods to your Activity; onConnected() is the method that is called when the LocationClientconnects. onLocationChanged() is where you'll retrieve the most up-to-date location.

@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
    Log.w(TAG, "Location client connection failed");
}

@Override
public void onConnected(Bundle dataBundle) {
    Log.d(TAG, "Location client connected");
    mLocationClient.requestLocationUpdates(mLocationRequest, this); 
}

@Override
public void onDisconnected() {
    Log.d(TAG, "Location client disconnected");
}

@Override
public void onLocationChanged(Location location) {
    if (location != null) {
        Log.d(TAG, "Updated Location: " + Double.toString(location.getLatitude()) + "," + Double.toString(location.getLongitude()));
    } else {
        Log.d(TAG, "Updated location NULL");
    } 
}     

Be sure to connect/disconnect the LocationClient so it's only using extra battery when absolutely necessary and so the GPS doesn't run indefinitely. The LocationClient must be connected in order to get data from it.

public void onResume() {
    super.onResume();
    mLocationClient.connect();
}

public void onStop() {
    if (mLocationClient.isConnected()) {
        mLocationClient.removeLocationUpdates(this);
    }
    mLocationClient.disconnect();
    super.onStop();
}

Get the user's location. First try using the LocationClient; if that fails, fall back to the LocationManager.

public Location getLocation() {
    if (mLocationClient != null && mLocationClient.isConnected()) {
        return mLocationClient.getLastLocation();
    } else {
        LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
        if (locationManager != null) {
            Location lastKnownLocationGPS = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
            if (lastKnownLocationGPS != null) {
                return lastKnownLocationGPS;
            } else {
                return locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
            }
        } else {
            return null;
        }
    }
}

Use this code to move items to the right.

<div class="collapse navbar-collapse justify-content-end">

Please read PEP8. You're swaying pretty far from python conventions.

If you want a list of lists of each line split by comma, I'd do this:

l = []
for line in in_file:
    l.append(line.split(','))

You'll get a newline on each record. If you don't want that:

l = []
for line in in_file:
    l.append(line.rstrip().split(','))

For newbies, you can extend your partial service class in a separate cs file and add the code the code provided by "imanabidi" to get it integrated

The only portable way to achieve consistency between rooms and tags and making sure rooms are never returned after they had been deleted is locking them with SELECT FOR UPDATE.

However in some systems locking is a side effect of concurrency control, and you achieve the same results without specifying FOR UPDATE explicitly.

To solve this problem, Thread 1 should SELECT id FROM rooms FOR UPDATE, thereby preventing Thread 2 from deleting from rooms until Thread 1 is done. Is that correct?

This depends on the concurrency control your database system is using.

• MyISAM in MySQL (and several other old systems) does lock the whole table for the duration of a query.

• In SQL Server, SELECT queries place shared locks on the records / pages / tables they have examined, while DML queries place update locks (which later get promoted to exclusive or demoted to shared locks). Exclusive locks are incompatible with shared locks, so either SELECT or DELETE query will lock until another session commits.

• In databases which use MVCC (like Oracle, PostgreSQL, MySQL with InnoDB), a DML query creates a copy of the record (in one or another way) and generally readers do not block writers and vice versa. For these databases, a SELECT FOR UPDATE would come handy: it would lock either SELECT or the DELETE query until another session commits, just as SQL Server does.

When should one use REPEATABLE_READ transaction isolation versus READ_COMMITTED with SELECT ... FOR UPDATE?

Generally, REPEATABLE READ does not forbid phantom rows (rows that appeared or disappeared in another transaction, rather than being modified)

• In Oracle and earlier PostgreSQL versions, REPEATABLE READ is actually a synonym for SERIALIZABLE. Basically, this means that the transaction does not see changes made after it has started. So in this setup, the last Thread 1 query will return the room as if it has never been deleted (which may or may not be what you wanted). If you don't want to show the rooms after they have been deleted, you should lock the rows with SELECT FOR UPDATE

• In InnoDB, REPEATABLE READ and SERIALIZABLE are different things: readers in SERIALIZABLE mode set next-key locks on the records they evaluate, effectively preventing the concurrent DML on them. So you don't need a SELECT FOR UPDATE in serializable mode, but do need them in REPEATABLE READ or READ COMMITED.

Note that the standard on isolation modes does prescribe that you don't see certain quirks in your queries but does not define how (with locking or with MVCC or otherwise).

When I say "you don't need SELECT FOR UPDATE" I really should have added "because of side effects of certain database engine implementation".

This is 2013. Forget about the 2009 comments. Likewise, if you are running serious traffic loads, do not even contemplate how to make-do with a windows based memcache. When dealing with a very large scale (500+ front end web servers) and 20+ back end database servers and replicants (mysql & mssql mix), a farm of memcached servers (12 servers in group) supports multiple high volume OLTP applications answering 25K ~ 40K mc->get calls per-second. These calls are those that do NOT have to reach a database.

IMHO, this use of memcached provided SERIOUS $$$,$$$savings on CAPEX for new DB servers & licences as well as on support contracts for large commercial designs.

No, there is not.

Please make sure you have imported the correct package

import org.springframework.core.env.Environment;

and then use the Environment object

@Autowired
private Environment env;    // Environment Object containts the port number

 @GetMapping("/status")
  public String status()
    {
   return "it is runing on"+(env.getProperty("local.server.port"));
    }

I asume you have connected to your database already.

$sql = "SELECT * FROM my_table";
$result = mysql_query($sql);

$row = 1; // 1-based index
while($row_data = mysql_fetch_assoc($result)) {
    $col = 0;
    foreach($row_data as $key=>$value) {
        $objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow($col, $row, $value);
        $col++;
    }
    $row++;
}

numpy.dot(a, b, out=None)

Dot product of two arrays.

For N dimensions it is a sum product over the last axis of a and the second-to-last of b.

Documentation: numpy.dot.

Depending on your platform you can use: sqlite3 file_name.db from the terminal. .tables will list the tables, .schema is full layout. SQLite commands like: select * from table_name; and such will print out the full contents. Type: ".exit" to exit. No need to download a GUI application.Use a semi-colon if you want it to execute a single command. Decent SQLite usage tutorial http://www.thegeekstuff.com/2012/09/sqlite-command-examples/

So this also happened to me too. I checked 50 times and my "Is Initial View Controller" was checked, believe me. It happened out of the blue. So how did I fix it?

1. Create a new Storyboard in your project, name it something like Main_iPhoneV2 (or iPadV2 depending on your original storyboard style)
2. Open the broken storyboard, click anywhere in the white area and press command-a, then command-c (select all and copy)
3. Open your new storyboard and press command-v to paste the same exact setup
4. Go to your project settings, change your "Main Interface" to the new Main_iPhoneV2 (If it's your iPad and you're writing a universal app, you'll have to edit the -Info.plist and look for the value "Main storyboard file base name (iPad)
5. Recompile, and stop pulling your hair out

Python calls them lists. You can write a list literal with square brackets and commas:

>>> [6,28,496,8128]
[6, 28, 496, 8128]

For those who want a right triangle arrow, here you go:

STEP 1: Create a drawable XML file, copy and paste the following XML content into your drawable XML. (Please be informed that you can use any name for your drawable XML file. For my case, I name it "v_right_arrow")

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item >
        <rotate
            android:fromDegrees="45"
            android:toDegrees="-45"
            android:pivotX="15%"
            android:pivotY="-36%" >
            <shape
                android:shape="rectangle"  >
                <stroke android:color="@android:color/transparent" android:width="1dp"/>
                <solid
                    android:color="#000000"  />
            </shape>
        </rotate>
    </item>
</layer-list>

STEP 2: In your layout's XML, create a View and bind its background to the drawable XML that you have just created in STEP 1. For my case, I bind v_right_arrow to my View's background property.

<View
    android:layout_width="200dp"
    android:layout_height="200dp"
    android:background="@drawable/v_right_arrow">
</View>

Sample output:

Hope this helps, good luck!

Any Alpha-numeric value and "-" and "_" is valid. But, you should start the id name with any character between A-Z or a-z.

This is the best video about Object-Oriented JavaScript on the internet:

The Definitive Guide to Object-Oriented JavaScript

Watch from beginning to end!!

Basically, Javascript is a Prototype-based language which is quite different than the classes in Java, C++, C#, and other popular friends. The video explains the core concepts far better than any answer here.

With ES6 (released 2015) we got a "class" keyword which allows us to use Javascript "classes" like we would with Java, C++, C#, Swift, etc.

Screenshot from the video showing how to write and instantiate a Javascript class/subclass:

For me it works this way:

putty -ssh [email protected] 22 -pw password

putty, protocol, user name @ ip address port and password. To connect in less than a second.

I've been using the JWT authentication. Works just fine in my application.

There is an authentication method that will require the user credentials. This method validates the credentials and returns an access token in case of success.

This token must be sent to every other method in my Web API in the header of the request.

It's pretty easy to implement, and very easy to test.

Just create your own action.

namespace WpfUtil
{
    using System.Reflection;
    using System.Windows;
    using System.Windows.Interactivity;


    /// <summary>
    /// Sets the designated property to the supplied value. TargetObject
    /// optionally designates the object on which to set the property. If
    /// TargetObject is not supplied then the property is set on the object
    /// to which the trigger is attached.
    /// </summary>
    public class SetPropertyAction : TriggerAction<FrameworkElement>
    {
        // PropertyName DependencyProperty.

        /// <summary>
        /// The property to be executed in response to the trigger.
        /// </summary>
        public string PropertyName
        {
            get { return (string)GetValue(PropertyNameProperty); }
            set { SetValue(PropertyNameProperty, value); }
        }

        public static readonly DependencyProperty PropertyNameProperty
            = DependencyProperty.Register("PropertyName", typeof(string),
            typeof(SetPropertyAction));


        // PropertyValue DependencyProperty.

        /// <summary>
        /// The value to set the property to.
        /// </summary>
        public object PropertyValue
        {
            get { return GetValue(PropertyValueProperty); }
            set { SetValue(PropertyValueProperty, value); }
        }

        public static readonly DependencyProperty PropertyValueProperty
            = DependencyProperty.Register("PropertyValue", typeof(object),
            typeof(SetPropertyAction));


        // TargetObject DependencyProperty.

        /// <summary>
        /// Specifies the object upon which to set the property.
        /// </summary>
        public object TargetObject
        {
            get { return GetValue(TargetObjectProperty); }
            set { SetValue(TargetObjectProperty, value); }
        }

        public static readonly DependencyProperty TargetObjectProperty
            = DependencyProperty.Register("TargetObject", typeof(object),
            typeof(SetPropertyAction));


        // Private Implementation.

        protected override void Invoke(object parameter)
        {
            object target = TargetObject ?? AssociatedObject;
            PropertyInfo propertyInfo = target.GetType().GetProperty(
                PropertyName,
                BindingFlags.Instance|BindingFlags.Public
                |BindingFlags.NonPublic|BindingFlags.InvokeMethod);

            propertyInfo.SetValue(target, PropertyValue);
        }
    }
}

In this case I'm binding to a property called DialogResult on my viewmodel.

<Grid>

    <Button>
        <i:Interaction.Triggers>
            <i:EventTrigger EventName="Click">
                <wpf:SetPropertyAction PropertyName="DialogResult" TargetObject="{Binding}"
                                       PropertyValue="{x:Static mvvm:DialogResult.Cancel}"/>
            </i:EventTrigger>
        </i:Interaction.Triggers>
        Cancel
    </Button>

</Grid>

jQuery Ajax loader is not working well when you call two APIs simultaneously. To resolve this problem you have to call the APIs one by one using the isAsync property in Ajax setting. You also need to make sure that there should not be any error in the setting. Otherwise, the loader will not work. E.g undefined content-type, data-type for POST/PUT/DELETE/GET call.

If you are lucky enough to develop with Kotlin,
you can use take to achieve your goal.

val someString = "hello"

someString.take(10) // result is "hello"
someString.take(4) // result is "hell" )))

CTRL + I for incremental search. Hit F3 or CTRL + I to cycle through the results.

This issue can be solved by CSS.

.image{
 max-width:*px;
}

I am not sure if you are using IoC and Dependency Injection to resolve your DbContext where ever it might be used. If you do and you are using native IoC from .NET Core (or any other IoC-Container) and you are getting this error, make sure to register your DbContext as Transient. Do

services.AddTransient<MyContext>();

OR

services.AddDbContext<MyContext>(ServiceLifetime.Transient);

instead of

services.AddDbContext<MyContext>();

AddDbContext adds the context as scoped, which might cause troubles when working with multiple threads.

Also async / await operations can cause this behaviour, when using async lambda expressions.

Adding it as transient also has its downsides. You will not be able to make changes to some entity over multiple classes that are using the context because each class will get its own instance of your DbContext.

The simple explanation for that is, that the DbContext implementation is not thread-safe. You can read more about this here

You can use a single quote to access the key that you set in your Java program.

If you set a Map in Java like this

Map<String,Object> hash = new HashMap<String,Object>();
hash.put("firstname", "a");
hash.put("lastname", "b");

Map<String,Object> map = new HashMap<String,Object>();
map.put("hash", hash);

Then you can access the members of 'hash' in Freemarker like this -

${hash['firstname']}
${hash['lastname']}

Output :

a
b

As you stated, a checkout includes the .svn directories. Thus it is a working copy and will have the proper information to make commits back (if you have permission). If you do an export you are just taking a copy of the current state of the repository and will not have any way to commit back any changes.

The Main method is Static. You can not invoke a non-static method from a static method.

GetRandomBits()

is not a static method. Either you have to create an instance of Program

Program p = new Program();
p.GetRandomBits();

or make

GetRandomBits() static.

A lot of people, including me, use sqlfiddle.com to test SQL.

Create a new package in the java directory and move your project into that package. Like your current project id is com.testapp.user and you want to change it xyz.testapp.user. Then create a package in src/java directory named xyz and move your child package testapp.user into xyz. It works for me. Finally, update build.gradle and manifest project id.

The easiest way is to use a StringContent, with the JSON representation of your JSON object.

httpClient.Post(
    "",
    new StringContent(
        myObject.ToString(),
        Encoding.UTF8,
        "application/json"));

Download commons-net binary from here. Extract the files and reference the commons-net-x.x.jar file.

In the html file there are three input boxes with userid,username,department respectively.

These inputboxes are used to get the input from the user.

The user can add any number of inputs to the page.

When clicking the button the script will enable the debugger mode.

In javascript, to enable the debugger mode, we have to add the following tag in the javascript.

/************************************************************************\

    Tools->Internet Options-->Advanced-->uncheck
    Disable script debugging(Internet Explorer)
    Disable script debugging(Other)

    <html xmlns="http://www.w3.org/1999/xhtml" >

    <head runat="server">

    <title>Dynamic Table</title>

    <script language="javascript" type="text/javascript">

    // <!CDATA[

    function CmdAdd_onclick() {

    var newTable,startTag,endTag;



    //Creating a new table

    startTag="<TABLE id='mainTable'><TBODY><TR><TD style=\"WIDTH: 120px\">User ID</TD>
    <TD style=\"WIDTH: 120px\">User Name</TD><TD style=\"WIDTH: 120px\">Department</TD></TR>"

    endTag="</TBODY></TABLE>"

    newTable=startTag;

    var trContents;

    //Get the row contents

    trContents=document.body.getElementsByTagName('TR');

    if(trContents.length>1)

    {

    for(i=1;i<trContents.length;i++)

    {

    if(trContents(i).innerHTML)

    {

    // Add previous rows

    newTable+="<TR>";

    newTable+=trContents(i).innerHTML;

    newTable+="</TR>";

    } 

    }

    }

    //Add the Latest row

    newTable+="<TR><TD style=\"WIDTH: 120px\" >" +
        document.getElementById('userid').value +"</TD>";

    newTable+="<TD style=\"WIDTH: 120px\" >" +
        document.getElementById('username').value +"</TD>";

    newTable+="<TD style=\"WIDTH: 120px\" >" +
        document.getElementById('department').value +"</TD><TR>";

    newTable+=endTag;

    //Update the Previous Table With New Table.

    document.getElementById('tableDiv').innerHTML=newTable;

    }

    // ]]>

    </script>

    </head>

    <body>

    <form id="form1" runat="server">

    <div>

    <br />

    <label>UserID</label> 

    <input id="userid" type="text" /><br />

    <label>UserName</label> 

    <input id="username" type="text" /><br />

    <label>Department</label> 

    <input id="department" type="text" />

    <center>

    <input id="CmdAdd" type="button" value="Add" onclick="return CmdAdd_onclick()" />
    </center>



    </div>

    <div id="tableDiv" style="text-align:center" >

    <table id="mainTable">

    <tr style="width:120px " >

    <td >User ID</td>

    <td>User Name</td>

    <td>Department</td>

    </tr>

    </table>

    </div>

    </form>

    </body>

    </html>

To center a view in Framelayout, there are some available tricks. The simplest one I used for my Webview and Progressbar(very similar to your two object layout), I just added android:layout_gravity="center"

Here is complete XML in case if someone else needs the same thing to do

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".WebviewPDFActivity"
    android:layout_gravity="center"
    >
    <WebView
        android:id="@+id/webView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"

        />
    <ProgressBar
        android:id="@+id/progress_circular"
        android:layout_width="250dp"
        android:layout_height="250dp"
        android:visibility="visible"
        android:layout_gravity="center"
        />


</FrameLayout>

Here is my output

Put your image or video in flash format. Works great.

I tried make a telnet over remote server on port 3306. The error message is clear

Host 'x.x.x.x' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'Connection closed by foreign host.

As root at server mysqladmin flush-hosts worked at all!

Another option is to make the Bootstrap dropdown behave like a select using jQuery...

$(".dropdown-menu li a").click(function(){
  var selText = $(this).text();
  $(this).parents('.btn-group').find('.dropdown-toggle').html(selText+' <span class="caret"></span>');
});

http://www.bootply.com/b4NKREUPkN

You can use Recordmp3js from GitHub to achieve your requirements. You can record from user's microphone and then get the file as an mp3. Finally upload it to your server.

I used this in my demo. There is a already a sample available with the source code by the author in this location : https://github.com/Audior/Recordmp3js

The demo is here: http://audior.ec/recordmp3js/

But currently works only on Chrome and Firefox.

Seems to work fine and pretty simple. Hope this helps.

I find this works better:

SELECT type, *
FROM sys.objects
WHERE OBJECT_DEFINITION(object_id) LIKE '%' + @ObjectName + '%'
AND type IN ('V')
ORDER BY name

Filtering VIEW_DEFINTION inside INFORMATION_SCHEMA.VIEWS is giving me quite a few false positives.

You can just use the .NET Framework method:

[System.Net.Dns]::GetHostName()

also

$env:COMPUTERNAME

First of all this is JavaScript and not C#

Then you cannot disable a div because it normally has no functionality. To disable a click event, you simply have to remove the event from the dom object. (bind and unbind)...

If you have committed changes to master branch. Now you want to move that same commit to release-branch. Check the commit id(Eg:xyzabc123) for the commit.

Now try following commands

git checkout release-branch
git cherry-pick xyzabc123
git push origin release-branch

1. Pointers allow you to refer to the same space in memory from multiple locations. This means that you can update memory in one location and the change can be seen from another location in your program. You will also save space by being able to share components in your data structures.
2. You should use pointers any place where you need to obtain and pass around the address to a specific spot in memory. You can also use pointers to navigate arrays:
3. An array is a block of contiguous memory that has been allocated with a specific type. The name of the array contains the value of the starting spot of the array. When you add 1, that takes you to the second spot. This allows you to write loops that increment a pointer that slides down the array without having an explicit counter for use in accessing the array.

Here is an example in C:

char hello[] = "hello";

char *p = hello;

while (*p)
{
    *p += 1; // increase the character by one

    p += 1; // move to the next spot
}

printf(hello);

prints

ifmmp

because it takes the value for each character and increments it by one.

I just used :first as CSS selector successfully.

.red:first

It's now possible to add a forced line break
with two blank spaces at the end of the line:

line1??
line2

will be formatted as:

line1
line2

I also had the similar issue. Logs were not creating.

Please check logger attribute name should match with your LogManager.GetLogger("name")

<logger name="Mylog">
      <level value="All"></level>
      <appender-ref ref="RollingLogFileAppender" />
    </logger>



private static readonly ILog Log = LogManager.GetLogger("Mylog");

Specify the property in filter, of object on which you want to apply filter:

//Suppose Object
var users = [{
  "firstname": "XYZ",
  "lastname": "ABC",
  "Address": "HOUSE NO-1, Example Street, Example Town"
},
{
  "firstname": "QWE",
  "lastname": "YUIKJH",
  "Address": "HOUSE NO-11, Example Street1, Example Town1"
}]

But you want to apply filter only on firstname

<input type = "text" ng-model = "first_name_model"/>
<div ng-repeat="user in users| filter:{ firstname: first_name_model}">

Assuming that the program cannot be redesigned to avoid the cast (ref. Keith Thomson's answer):

To cast from size_t to int you need to ensure that the size_t does not exceed the maximum value of the int. This can be done using std::numeric_limits:

int SizeTToInt(size_t data)
{
    if (data > std::numeric_limits<int>::max())
        throw std::exception("Invalid cast.");
    return std::static_cast<int>(data);
}

If you need to cast from size_t to double, and you need to ensure that you don't lose precision, I think you can use a narrow cast (ref. Stroustrup: The C++ Programming Language, Fourth Edition):

template<class Target, class Source>
Target NarrowCast(Source v)
{
    auto r = static_cast<Target>(v);
    if (static_cast<Source>(r) != v)
        throw RuntimeError("Narrow cast failed.");
    return r;
}

I tested using the narrow cast for size_t-to-double conversions by inspecting the limits of the maximum integers floating-point-representable integers (code uses googletest):

EXPECT_EQ(static_cast<size_t>(NarrowCast<double>(size_t{ IntegerRepresentableBoundary() - 2 })), size_t{ IntegerRepresentableBoundary() - 2 });
EXPECT_EQ(static_cast<size_t>(NarrowCast<double>(size_t{ IntegerRepresentableBoundary() - 1 })), size_t{ IntegerRepresentableBoundary() - 1 });
EXPECT_EQ(static_cast<size_t>(NarrowCast<double>(size_t{ IntegerRepresentableBoundary() })), size_t{ IntegerRepresentableBoundary() });
EXPECT_THROW(NarrowCast<double>(size_t{ IntegerRepresentableBoundary() + 1 }), std::exception);
EXPECT_EQ(static_cast<size_t>(NarrowCast<double>(size_t{ IntegerRepresentableBoundary() + 2 })), size_t{ IntegerRepresentableBoundary() + 2 });
EXPECT_THROW(NarrowCast<double>(size_t{ IntegerRepresentableBoundary() + 3 }), std::exception);
EXPECT_EQ(static_cast<size_t>(NarrowCast<double>(size_t{ IntegerRepresentableBoundary() + 4 })), size_t{ IntegerRepresentableBoundary() + 4 });
EXPECT_THROW(NarrowCast<double>(size_t{ IntegerRepresentableBoundary() + 5 }), std::exception);

where

constexpr size_t IntegerRepresentableBoundary()
{
    static_assert(std::numeric_limits<double>::radix == 2, "Method only valid for binary floating point format.");
    return size_t{2} << (std::numeric_limits<double>::digits - 1);
}

That is, if N is the number of digits in the mantissa, for doubles smaller than or equal to 2^N, integers can be exactly represented. For doubles between 2^N and 2^(N+1), every other integer can be exactly represented. For doubles between 2^(N+1) and 2^(N+2) every fourth integer can be exactly represented, and so on.

I had more than 100 files like

log-12
log-123
log-34
....

above answers did not work for me

but the following command helped me.

find . -name "log-*" -exec rm  -rf {} \;

i gave -type as . so it deletes both files and folders which starts with log-

and rm -rf deletes folders recursively even it has files.

if you want folders alone

find -type d -name "log-*" -exec rm  -rf {} \;

files alone

find -type f -name "log-*" -exec rm  -rf {} \;

you would have to write down some method to create a temporary array and then copy it like

public String[] increaseArray(String[] theArray, int increaseBy)  
{  
    int i = theArray.length;  
    int n = ++i;  
    String[] newArray = new String[n];  
    for(int cnt=0;cnt<theArray.length;cnt++)
    {  
        newArray[cnt] = theArray[cnt];  
    }  
    return newArray;  
}  

or The ArrayList would be helpful to resolve your problem.

As you mentioned, prompt works for browsers all the way back to IE:

var answer = prompt('question', 'defaultAnswer');

For Node.js > v7.6, you can use console-read-write, which is a wrapper around the low-level readline module:

const io = require('console-read-write');

async function main() {
  // Simple readline scenario
  io.write('I will echo whatever you write!');
  io.write(await io.read());

  // Simple question scenario
  io.write(`hello ${await io.ask('Who are you?')}!`);

  // Since you are not blocking the IO, you can go wild with while loops!
  let saidHi = false;
  while (!saidHi) {
    io.write('Say hi or I will repeat...');
    saidHi = await io.read() === 'hi';
  }

  io.write('Thanks! Now you may leave.');
}

main();
// I will echo whatever you write!
// > ok
// ok
// Who are you? someone
// hello someone!
// Say hi or I will repeat...
// > no
// Say hi or I will repeat...
// > ok
// Say hi or I will repeat...
// > hi
// Thanks! Now you may leave.

Disclosure I'm author and maintainer of console-read-write

For SpiderMonkey, simple readline as suggested by @MooGoo and @Zaz.

You could declare a variable as a temporary table like this:

declare @myList table (Id int)

Which means you can use the insert statement to populate it with values:

insert into @myList values (1), (2), (5), (7), (10)

Then your select statement can use either the in statement:

select * from DBTable
where id in (select Id from @myList)

Or you could join to the temporary table like this:

select *
from DBTable d
join @myList t on t.Id = d.Id

And if you do something like this a lot then you could consider defining a user-defined table type so you could then declare your variable like this:

declare @myList dbo.MyTableType

Based on a feature mentioned in this answer to another question I have found a very generally applicable solution for placing labels on a bar chart.

Other solutions unfortunately do not work in many cases, because the spacing between label and bar is either given in absolute units of the bars or is scaled by the height of the bar. The former only works for a narrow range of values and the latter gives inconsistent spacing within one plot. Neither works well with logarithmic axes.

The solution I propose works independent of scale (i.e. for small and large numbers) and even correctly places labels for negative values and with logarithmic scales because it uses the visual unit points for offsets.

I have added a negative number to showcase the correct placement of labels in such a case.

The value of the height of each bar is used as a label for it. Other labels can easily be used with Simon's for rect, label in zip(rects, labels) snippet.

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt

# Bring some raw data.
frequencies = [6, -16, 75, 160, 244, 260, 145, 73, 16, 4, 1]

# In my original code I create a series and run on that,
# so for consistency I create a series from the list.
freq_series = pd.Series.from_array(frequencies)

x_labels = [108300.0, 110540.0, 112780.0, 115020.0, 117260.0, 119500.0,
            121740.0, 123980.0, 126220.0, 128460.0, 130700.0]

# Plot the figure.
plt.figure(figsize=(12, 8))
ax = freq_series.plot(kind='bar')
ax.set_title('Amount Frequency')
ax.set_xlabel('Amount ($)')
ax.set_ylabel('Frequency')
ax.set_xticklabels(x_labels)


def add_value_labels(ax, spacing=5):
    """Add labels to the end of each bar in a bar chart.

    Arguments:
        ax (matplotlib.axes.Axes): The matplotlib object containing the axes
            of the plot to annotate.
        spacing (int): The distance between the labels and the bars.
    """

    # For each bar: Place a label
    for rect in ax.patches:
        # Get X and Y placement of label from rect.
        y_value = rect.get_height()
        x_value = rect.get_x() + rect.get_width() / 2

        # Number of points between bar and label. Change to your liking.
        space = spacing
        # Vertical alignment for positive values
        va = 'bottom'

        # If value of bar is negative: Place label below bar
        if y_value < 0:
            # Invert space to place label below
            space *= -1
            # Vertically align label at top
            va = 'top'

        # Use Y value as label and format number with one decimal place
        label = "{:.1f}".format(y_value)

        # Create annotation
        ax.annotate(
            label,                      # Use `label` as label
            (x_value, y_value),         # Place label at end of the bar
            xytext=(0, space),          # Vertically shift label by `space`
            textcoords="offset points", # Interpret `xytext` as offset in points
            ha='center',                # Horizontally center label
            va=va)                      # Vertically align label differently for
                                        # positive and negative values.


# Call the function above. All the magic happens there.
add_value_labels(ax)

plt.savefig("image.png")

Edit: I have extracted the relevant functionality in a function, as suggested by barnhillec.

This produces the following output:

And with logarithmic scale (and some adjustment to the input data to showcase logarithmic scaling), this is the result:

Let's dissect it. There are three parts:

1. cd -- This is change directory command.
2. /d -- This switch makes cd change both drive and directory at once. Without it you would have to do cd %~d0 & cd %~p0. (%~d0 Changs active drive, cd %~p0 change the directory).
3. %~dp0 -- This can be dissected further into three parts:
   1. %0 -- This represents zeroth parameter of your batch script. It expands into the name of the batch file itself.
   2. %~0 -- The ~ there strips double quotes (") around the expanded argument.
   3. %dp0 -- The d and p there are modifiers of the expansion. The d forces addition of a drive letter and the p adds full path.

My aurdino mega 2560 returned same error. It seems the problem exists in unofficial clones. The issue solved by pressing reset button just before uploading starts, as advertised in following video.

https://www.youtube.com/watch?v=tAzjO4v7oF4&list=LLDn5ewJDzz53IiwWmZTgQnQ&index=1

Just use plain objects:

var map = { key1: "value1", key2: "value2" }
function get(k){
  return map[k];
}

Your formula is wrong. You probably meant something like:

=IF(AND(NOT(ISBLANK(Q2));NOT(ISBLANK(R2)));IF(Q2<=R2;"1";"0");"")

Another equivalent:

=IF(NOT(OR(ISBLANK(Q2);ISBLANK(R2)));IF(Q2<=R2;"1";"0");"")

Or even shorter:

=IF(OR(ISBLANK(Q2);ISBLANK(R2));"";IF(Q2<=R2;"1";"0"))

OR EVEN SHORTER:

=IF(OR(ISBLANK(Q2);ISBLANK(R2));"";--(Q2<=R2))

Tomcat is primarily an application server, which serves requests to custom-built Java servlets or JSP files on your server. It is usually used in conjunction with the Apache HTTP server (at least in my experience). Use it to manually process incoming requests.

The HTTP server, by itself, is best for serving up static content... html files, images, etc.

I've had this problem/question come up in an assignment that I'm currently working on. It also depends on which input you are grabbing from. I am using

/dev/tty

to get input while the program is running, so that needs to be the filestream associated with the command.

On the ubuntu machine I have to test/target, it required more than just

system( "stty -raw" );

or

system( "stty -icanon" );

I had to add the --file flag, as well as path to the command, like so:

system( "/bin/stty --file=/dev/tty -icanon" );

Everything is copacetic now.

Example here.

Pasted below:

This is about how to launch android application from the adb shell.

Command: am

Look for invoking path in AndroidManifest.xml

Browser app::

# am start -a android.intent.action.MAIN -n com.android.browser/.BrowserActivity
Starting: Intent { action=android.intent.action.MAIN comp={com.android.browser/com.android.browser.BrowserActivity} }
Warning: Activity not started, its current task has been brought to the front

Settings app::

# am start -a android.intent.action.MAIN -n com.android.settings/.Settings
Starting: Intent { action=android.intent.action.MAIN comp={com.android.settings/com.android.settings.Settings} }

Assuming you're using Python's logging module, you can pass the string formatting arguments as arguments to the .debug() method rather than doing the formatting yourself:

log.debug("some debug info: %s", some_info)

which avoids doing the formatting unless the logger actually logs something.

Thanks to @Rob M. for his help. This is what the final block of code looked like:

function swapper() {
  toggleClass(document.getElementById('overlay'), 'open');
}

var el = document.getElementById('overlayBtn');
if (el){
  el.addEventListener('click', swapper, false);

  var text = document.getElementById('overlayBtn');
  text.onclick = function(){
    this.innerHTML = (this.innerHTML === "Menu") ? "Close" : "Menu";
    return false;
  };
}

I ran into a similar issue today - a co-worker could not build his software but I could build it. When he ran gcc it could not find cc1.

His executable path looked reasonable but the fact that I could not easily replicate the failure suggested something in his environment as the cause.

Eventually we found GCC_EXEC_PREFIX defined in his environment which was the culprit and was misleading gcc in the search for cc1. This was part of his shell startup scripts and was meant to work around a limitation on a SPARC/Solaris system that is no longer in use. The problem was resolved by not setting this environment variable.

http://gcc.gnu.org/onlinedocs/gcc/Environment-Variables.html

Strings are immutable types. You cannot modify them, only return new string instances.

Because of that, formatting with an instance method makes little sense, as it would have to be called like:

String formatted = "%s: %s".format(key, value);

The original Java authors (and .NET authors) decided that a static method made more sense in this situation, as you are not modifying the target, but instead calling a format method and passing in an input string.

Here is an example of why format() would be dumb as an instance method. In .NET (and probably in Java), Replace() is an instance method.

You can do this:

 "I Like Wine".Replace("Wine","Beer");

However, nothing happens, because strings are immutable. Replace() tries to return a new string, but it is assigned to nothing.

This causes lots of common rookie mistakes like:

inputText.Replace(" ", "%20");

Again, nothing happens, instead you have to do:

inputText = inputText.Replace(" ","%20");

Now, if you understand that strings are immutable, that makes perfect sense. If you don't, then you are just confused. The proper place for Replace() would be where format() is, as a static method of String:

 inputText = String.Replace(inputText, " ", "%20");

Now there is no question as to what's going on.

The real question is, why did the authors of these frameworks decide that one should be an instance method, and the other static? In my opinion, both are more elegantly expressed as static methods.

Regardless of your opinion, the truth is that you are less prone to make a mistake using the static version, and the code is easier to understand (No Hidden Gotchas).

Of course there are some methods that are perfect as instance methods, take String.Length()

int length = "123".Length();

In this situation, it's obvious we are not trying to modify "123", we are just inspecting it, and returning its length. This is a perfect candidate for an instance method.

My simple rules for Instance Methods on Immutable Objects:

• If you need to return a new instance of the same type, use a static method.
• Otherwise, use an instance method.

rtrim(lastname)+','+rtrim(firstname) as [Person Name]
from Table

the result will show lastname,firstname as one column header !

#footer:after
{
   content: "";
    width: 40px;
    height: 3px;
    background-color: #529600;
    left: 0;
    position: relative;
    display: block;
    top: 10px;
}

1. Add a reference to your library
2. Import the namespace
3. Consume the types in your library

maybe your script tab has some problem.

if you set type, must type="application/javascript".

<!DOCTYPE html>
<html>
    <head>
        <title>
            Hello
        </title>
    </head>
    <body>
        <div onclick="showMsg('Hello')">
            Click me show message
        </div>
        <script type="application/javascript">
            function showMsg(item) {
            alert(item);
        }
        </script>
    </body>
</html>

In my application, I am using the below piece of code to show Bootstrap modal via jQuery.

 $('#myModall').modal({
                        backdrop: 'static',
                        keyboard: true, 
                        show: true
                }); 

I'm not sure what you're trying to do here:

npm install alone in your home directory shouldn't do much -- it's not the root of a node app, so there's nothing to install, since there's no package.json.

There are two possible solutions:

1) cd to a node app and run npm install there. OR

2) if you're trying to install something as a command to use in the shell (You don't have a node application), npm install -g packagename. -g flag tells it to install in global namespace.

I know this is old, but I was having this same issue, found this post, and while it didn't explain exactly what was wrong, it helped me to the right answer - so hopefully my answer helps someone else who might be having a similar problem to mine.

I had an element I wanted rotated vertical, so naturally I added the filter: for IE8 and then the -ms-transform property for IE9. What I found is that having the -ms-transform property AND the filter applied to the same element causes IE9 to render the element very poorly. My solution:

1. If you are using the transform-origin property, add one for MS too (-ms-transform-origin: left bottom;). If you don't see your element, it could be that it's rotating on it's middle axis and thus leaving the page somehow - so double check that.

2. Move the filter: property for IE7&8 to a separate style sheet and use an IE conditional to insert that style sheet for browsers less than IE9. This way it doesn't affect the IE9 styles and all should work fine.

3. Make sure to use the correct DOCTYPE tag as well; if you have it wrong IE9 will not work properly.

jQuery might be missing.

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>

I explain this to users by comparing Perforce changelists to a stack (from data structures).

Backing out removes one item from anywhere in the stack.

Rolling back removes n items from the top of the stack.

If you use the php Datetime class you could use:

function time_ago(Datetime $date) {
  $time_ago = '';

  $diff = $date->diff(new Datetime('now'));


  if (($t = $diff->format("%m")) > 0)
    $time_ago = $t . ' months';
  else if (($t = $diff->format("%d")) > 0)
    $time_ago = $t . ' days';
  else if (($t = $diff->format("%H")) > 0)
    $time_ago = $t . ' hours';
  else
    $time_ago = 'minutes';

  return $time_ago . ' ago (' . $date->format('M j, Y') . ')';
}

You would want to replace all spaces with   (non-breaking space) and all new lines \n with <br> (line break in html). This should achieve the result you're looking for.

body = body.replace(' ', '&nbsp;').replace('\n', '<br>');

Something of that nature.

Typically, you pass the goroutine a (possibly separate) signal channel. That signal channel is used to push a value into when you want the goroutine to stop. The goroutine polls that channel regularly. As soon as it detects a signal, it quits.

quit := make(chan bool)
go func() {
    for {
        select {
        case <- quit:
            return
        default:
            // Do other stuff
        }
    }
}()

// Do stuff

// Quit goroutine
quit <- true

Looks file you use the .mkdirs() method on a File object: http://www.roseindia.net/java/beginners/java-create-directory.shtml

// Create a directory; all non-existent ancestor directories are
// automatically created
success = (new File("../potentially/long/pathname/without/all/dirs")).mkdirs();
if (!success) {
    // Directory creation failed
}

I think you need something like this: http://jsfiddle.net/BeenYoung/BXaqW/3/

$(document).ready(function() {
  $("ul.opMenu li").each(function(){
      $(this).click(function(){
            if($(this).hasClass('opened')==false){          
                $('.opMenu').find('.opened').removeClass('opened').find('ul').slideUp();
                $(this).addClass('opened'); 
                $(this).find("ul").slideDown();
            }else{
                $(this).removeClass('opened'); 
                $(this).find("ul").slideUp();               
            }
      });
  });    
});

I hope it useful for you!

This is an extremely broad scope question, and a lot of the pros/cons will be contextual to the situation.

In all cases, these storage mechanisms will be specific to an individual browser on an individual computer/device. Any requirement to store data on an ongoing basis across sessions will need to involve your application server side - most likely using a database, but possibly XML or a text/CSV file.

localStorage, sessionStorage, and cookies are all client storage solutions. Session data is held on the server where it remains under your direct control.

localStorage and sessionStorage

localStorage and sessionStorage are relatively new APIs (meaning, not all legacy browsers will support them) and are near identical (both in APIs and capabilities) with the sole exception of persistence. sessionStorage (as the name suggests) is only available for the duration of the browser session (and is deleted when the tab or window is closed) - it does, however, survive page reloads (source DOM Storage guide - Mozilla Developer Network).

Clearly, if the data you are storing needs to be available on an ongoing basis then localStorage is preferable to sessionStorage - although you should note both can be cleared by the user so you should not rely on the continuing existence of data in either case.

localStorage and sessionStorage are perfect for persisting non-sensitive data needed within client scripts between pages (for example: preferences, scores in games). The data stored in localStorage and sessionStorage can easily be read or changed from within the client/browser so should not be relied upon for storage of sensitive or security-related data within applications.

Cookies

This is also true for cookies, these can be trivially tampered with by the user, and data can also be read from them in plain text - so if you are wanting to store sensitive data then the session is really your only option. If you are not using SSL, cookie information can also be intercepted in transit, especially on an open wifi.

On the positive side cookies can have a degree of protection applied from security risks like Cross-Site Scripting (XSS)/Script injection by setting an HTTP only flag which means modern (supporting) browsers will prevent access to the cookies and values from JavaScript (this will also prevent your own, legitimate, JavaScript from accessing them). This is especially important with authentication cookies, which are used to store a token containing details of the user who is logged on - if you have a copy of that cookie then for all intents and purposes you become that user as far as the web application is concerned, and have the same access to data and functionality the user has.

As cookies are used for authentication purposes and persistence of user data, all cookies valid for a page are sent from the browser to the server for every request to the same domain - this includes the original page request, any subsequent Ajax requests, all images, stylesheets, scripts, and fonts. For this reason, cookies should not be used to store large amounts of information. The browser may also impose limits on the size of information that can be stored in cookies. Typically cookies are used to store identifying tokens for authentication, session, and advertising tracking. The tokens are typically not human readable information in and of themselves, but encrypted identifiers linked to your application or database.

localStorage vs. sessionStorage vs. Cookies

In terms of capabilities, cookies, sessionStorage, and localStorage only allow you to store strings - it is possible to implicitly convert primitive values when setting (these will need to be converted back to use them as their type after reading) but not Objects or Arrays (it is possible to JSON serialise them to store them using the APIs). Session storage will generally allow you to store any primitives or objects supported by your Server Side language/framework.

Client-side vs. Server-side

As HTTP is a stateless protocol - web applications have no way of identifying a user from previous visits on returning to the web site - session data usually relies on a cookie token to identify the user for repeat visits (although rarely URL parameters may be used for the same purpose). Data will usually have a sliding expiry time (renewed each time the user visits), and depending on your server/framework data will either be stored in-process (meaning data will be lost if the web server crashes or is restarted) or externally in a state server or database. This is also necessary when using a web-farm (more than one server for a given website).

As session data is completely controlled by your application (server side) it is the best place for anything sensitive or secure in nature.

The obvious disadvantage of server-side data is scalability - server resources are required for each user for the duration of the session, and that any data needed client side must be sent with each request. As the server has no way of knowing if a user navigates to another site or closes their browser, session data must expire after a given time to avoid all server resources being taken up by abandoned sessions. When using session data you should, therefore, be aware of the possibility that data will have expired and been lost, especially on pages with long forms. It will also be lost if the user deletes their cookies or switches browsers/devices.

Some web frameworks/developers use hidden HTML inputs to persist data from one page of a form to another to avoid session expiration.

localStorage, sessionStorage, and cookies are all subject to "same-origin" rules which means browsers should prevent access to the data except the domain that set the information to start with.

For further reading on client storage technologies see Dive Into Html 5.

If you are using Microsoft Drivers 3.1, 3.0, and 2.0. Please check your PHP version already install with IIS.

Use this script to check the php version:

<?php echo phpinfo(); ?>

OR

If you have installed PHP Manager in IIS using web platform Installer you can check the version from it.

Then:
If you are using new PHP version (5.6) please download Drivers from here

For PHP version Lower than 5.6 - please download Drivers from here

• PHP Driver version 3.1 requires PHP 5.4.32, or PHP 5.5.16, or later.
• PHP Driver version 3.0 requires PHP 5.3.0 or later. If possible, use PHP 5.3.6, or later.
• PHP Driver version 2.0 driver works with PHP 5.2.4 or later, but not with PHP 5.4. If possible, use PHP 5.2.13, or later.

Then use the PHP Manager to add that downloaded drivers into php config file.You can do it as shown below (browse the files and press OK). Then Restart the IIS Server

If this method not work please change the php version and try to run your php script.

Tip:Change the php version to lower and try to understand what happened.then you can download relevant drivers.

if you are using spring security then you can get the current logged in user by

Authentication auth = SecurityContextHolder.getContext().getAuthentication();
     String name = auth.getName(); //get logged in username