As far as the Python languages is concerned, _ has no special meaning. It is a valid identifier just like _foo, foo_ or _f_o_o_.

Any special meaning of _ is purely by convention. Several cases are common:

• A dummy name when a variable is not intended to be used, but a name is required by syntax/semantics.

  # iteration disregarding content
  sum(1 for _ in some_iterable)
  # unpacking disregarding specific elements
  head, *_ = values
  # function disregarding its argument
  def callback(_): return True
  

• Many REPLs/shells store the result of the last top-level expression to builtins._.

  The special identifier _ is used in the interactive interpreter to store the result of the last evaluation; it is stored in the builtins module. When not in interactive mode, _ has no special meaning and is not defined. [source]

  Due to the way names are looked up, unless shadowed by a global or local _ definition the bare _ refers to builtins._ .

  >>> 42
  42
  >>> f'the last answer is {_}'
  'the last answer is 42'
  >>> _
  'the last answer is 42'
  >>> _ = 4  # shadow ``builtins._`` with global ``_``
  >>> 23
  23
  >>> _
  4
  

  Note: Some shells such as ipython do not assign to builtins._ but special-case _.

• In the context internationalization and localization, _ is used as an alias for the primary translation function.

  gettext.gettext(message)

  Return the localized translation of message, based on the current global domain, language, and locale directory. This function is usually aliased as _() in the local namespace (see examples below).

tl;dr

• "Foo" and "bar" as metasyntactic variables were popularised by MIT and DEC, the first references are in work on LISP and PDP-1 and Project MAC from 1964 onwards.

• Many of these people were in MIT's Tech Model Railroad Club, where we find the first documented use of "foo" in tech circles in 1959 (and a variant in 1958).

• Both "foo" and "bar" (and even "baz") were well known in popular culture, especially from Smokey Stover and Pogo comics, which will have been read by many TMRC members.

• Also, it seems likely the military FUBAR contributed to their popularity.

The use of lone "foo" as a nonsense word is pretty well documented in popular culture in the early 20th century, as is the military FUBAR. (Some background reading: FOLDOC FOLDOC Jargon File Jargon File Wikipedia RFC3092)

OK, so let's find some references.

STOP PRESS! After posting this answer, I discovered this perfect article about "foo" in the Friday 14th January 1938 edition of The Tech ("MIT's oldest and largest newspaper & the first newspaper published on the web"), Volume LVII. No. 57, Price Three Cents:

On Foo-ism

The Lounger thinks that this business of Foo-ism has been carried too far by its misguided proponents, and does hereby and forthwith take his stand against its abuse. It may be that there's no foo like an old foo, and we're it, but anyway, a foo and his money are some party. (Voice from the bleachers- "Don't be foo-lish!")

As an expletive, of course, "foo!" has a definite and probably irreplaceable position in our language, although we fear that the excessive use to which it is currently subjected may well result in its falling into an early (and, alas, a dark) oblivion. We say alas because proper use of the word may result in such happy incidents as the following.

It was an 8.50 Thermodynamics lecture by Professor Slater in Room 6-120. The professor, having covered the front side of the blackboard, set the handle that operates the lift mechanism, turning meanwhile to the class to continue his discussion. The front board slowly, majestically, lifted itself, revealing the board behind it, and on that board, writ large, the symbols that spelled "FOO"!

The Tech newspaper, a year earlier, the Letter to the Editor, September 1937:

By the time the train has reached the station the neophytes are so filled with the stories of the glory of Phi Omicron Omicron, usually referred to as Foo, that they are easy prey.

...

It is not that I mind having lost my first four sons to the Grand and Universal Brotherhood of Phi Omicron Omicron, but I do wish that my fifth son, my baby, should at least be warned in advance.

Hopefully yours,

Indignant Mother of Five.

And The Tech in December 1938:

General trend of thought might be best interpreted from the remarks made at the end of the ballots. One vote said, '"I don't think what I do is any of Pulver's business," while another merely added a curt "Foo."

The first documented "foo" in tech circles is probably 1959's Dictionary of the TMRC Language:

FOO: the sacred syllable (FOO MANI PADME HUM); to be spoken only when under inspiration to commune with the Deity. Our first obligation is to keep the Foo Counters turning.

These are explained at FOLDOC. The dictionary's compiler Pete Samson said in 2005:

Use of this word at TMRC antedates my coming there. A foo counter could simply have randomly flashing lights, or could be a real counter with an obscure input.

And from 1996's Jargon File 4.0.0:

Earlier versions of this lexicon derived 'baz' as a Stanford corruption of bar. However, Pete Samson (compiler of the TMRC lexicon) reports it was already current when he joined TMRC in 1958. He says "It came from "Pogo". Albert the Alligator, when vexed or outraged, would shout 'Bazz Fazz!' or 'Rowrbazzle!' The club layout was said to model the (mythical) New England counties of Rowrfolk and Bassex (Rowrbazzle mingled with (Norfolk/Suffolk/Middlesex/Essex)."

A year before the TMRC dictionary, 1958's MIT Voo Doo Gazette ("Humor suplement of the MIT Deans' office") (PDF) mentions Foocom, in "The Laws of Murphy and Finagle" by John Banzhaf (an electrical engineering student):

Further research under a joint Foocom and Anarcom grant expanded the law to be all embracing and universally applicable: If anything can go wrong, it will!

Also 1964's MIT Voo Doo (PDF) references the TMRC usage:

Yes! I want to be an instant success and snow customers. Send me a degree in: ...

• Foo Counters

• Foo Jung

Let's find "foo", "bar" and "foobar" published in code examples.

So, Jargon File 4.4.7 says of "foobar":

Probably originally propagated through DECsystem manuals by Digital Equipment Corporation (DEC) in 1960s and early 1970s; confirmed sightings there go back to 1972.

The first published reference I can find is from February 1964, but written in June 1963, The Programming Language LISP: its Operation and Applications by Information International, Inc., with many authors, but including Timothy P. Hart and Michael Levin:

Thus, since "FOO" is a name for itself, "COMITRIN" will treat both "FOO" and "(FOO)" in exactly the same way.

Also includes other metasyntactic variables such as: FOO CROCK GLITCH / POOT TOOR / ON YOU / SNAP CRACKLE POP / X Y Z

I expect this is much the same as this next reference of "foo" from MIT's Project MAC in January 1964's AIM-064, or LISP Exercises by Timothy P. Hart and Michael Levin:

car[((FOO . CROCK) . GLITCH)]

It shares many other metasyntactic variables like: CHI / BOSTON NEW YORK / SPINACH BUTTER STEAK / FOO CROCK GLITCH / POOT TOOP / TOOT TOOT / ISTHISATRIVIALEXCERCISE / PLOOP FLOT TOP / SNAP CRACKLE POP / ONE TWO THREE / PLANE SUB THRESHER

For both "foo" and "bar" together, the earliest reference I could find is from MIT's Project MAC in June 1966's AIM-098, or PDP-6 LISP by none other than Peter Samson:

EXPLODE, like PRIN1, inserts slashes, so (EXPLODE (QUOTE FOO/ BAR)) PRIN1's as (F O O // / B A R) or PRINC's as (F O O / B A R).

Some more recallations.

@Walter Mitty recalled on this site in 2008:

I second the jargon file regarding Foo Bar. I can trace it back at least to 1963, and PDP-1 serial number 2, which was on the second floor of Building 26 at MIT. Foo and Foo Bar were used there, and after 1964 at the PDP-6 room at project MAC.

John V. Everett recalls in 1996:

When I joined DEC in 1966, foobar was already being commonly used as a throw-away file name. I believe fubar became foobar because the PDP-6 supported six character names, although I always assumed the term migrated to DEC from MIT. There were many MIT types at DEC in those days, some of whom had worked with the 7090/7094 CTSS. Since the 709x was also a 36 bit machine, foobar may have been used as a common file name there.

Foo and bar were also commonly used as file extensions. Since the text editors of the day operated on an input file and produced an output file, it was common to edit from a .foo file to a .bar file, and back again.

It was also common to use foo to fill a buffer when editing with TECO. The text string to exactly fill one disk block was IFOO$HXA127GA$$. Almost all of the PDP-6/10 programmers I worked with used this same command string.

Daniel P. B. Smith in 1998:

Dick Gruen had a device in his dorm room, the usual assemblage of B-battery, resistors, capacitors, and NE-2 neon tubes, which he called a "foo counter." This would have been circa 1964 or so.

Robert Schuldenfrei in 1996:

The use of FOO and BAR as example variable names goes back at least to 1964 and the IBM 7070. This too may be older, but that is where I first saw it. This was in Assembler. What would be the FORTRAN integer equivalent? IFOO and IBAR?

Paul M. Wexelblat in 1992:

The earliest PDP-1 Assembler used two characters for symbols (18 bit machine) programmers always left a few words as patch space to fix problems. (Jump to patch space, do new code, jump back) That space conventionally was named FU: which stood for Fxxx Up, the place where you fixed Fxxx Ups. When spoken, it was known as FU space. Later Assemblers ( e.g. MIDAS allowed three char tags so FU became FOO, and as ALL PDP-1 programmers will tell you that was FOO space.

Bruce B. Reynolds in 1996:

On the IBM side of FOO(FU)BAR is the use of the BAR side as Base Address Register; in the middle 1970's CICS programmers had to worry out the various xxxBARs...I think one of those was FRACTBAR...

Here's a straight IBM "BAR" from 1955.

Other early references:

• 1967 foo bar MIT AIM-127

• 1967 foo bar MIT AIM-127a

• 1965 foo MIT Tech Engineering News

• 1968 foo baz DEC

• 1971 FOO BAR UCLA-NMC RFC269

• 1972 FOO MIT AI

• 1972 FOO MIT AI HAKMEM (PDF scan)

• 1972 FOO DEC

• 1973 FOO DEC

• 1973 foo bar International Joint Council on Artificial Intelligence

• 1975 foo bar International Joint Council on Artificial Intelligence

• 1977 Foobar

• 1978 Foobar

• 1978 Moby Foobar in Software Wars

I haven't been able to find any references to foo bar as "inverted foo signal" as suggested in RFC3092 and elsewhere.

Here are a some of even earlier F00s but I think they're coincidences/false positives:

• 1959 "FOO 31 IBM-704 Bettis Plant Uses a least squares technique" U.S. Atomic Energy Commission

• 1960 FOO (FO Out, F1, F2, FOO, FOI) "Digital computer and control engineering"

• 1967 FOO?

Disable swipe progmatically by-

    final View touchView = findViewById(R.id.Pager); 
    touchView.setOnTouchListener(new View.OnTouchListener() 
    {         
        @Override
        public boolean onTouch(View v, MotionEvent event)
        { 
           return true; 
        }
     });

and use this to swipe manually

touchView.setCurrentItem(int index);

If you need to call is asynchronously then use

var request = HttpWebRequest.Create("http://www.maplegraphservices.com/tokkri/webservices/updateProfile.php?oldEmailID=" + App.currentUser.email) as HttpWebRequest;
            request.Method = "POST";
            request.ContentType = "text/json";
            request.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback), request);

private void GetRequestStreamCallback(IAsyncResult asynchronousResult)
    {
        HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
        // End the stream request operation

        Stream postStream = request.EndGetRequestStream(asynchronousResult);


        // Create the post data
        string postData = JsonConvert.SerializeObject(edit).ToString();

        byte[] byteArray = Encoding.UTF8.GetBytes(postData);


        postStream.Write(byteArray, 0, byteArray.Length);
        postStream.Close();

        //Start the web request
        request.BeginGetResponse(new AsyncCallback(GetResponceStreamCallback), request);
    }

    void GetResponceStreamCallback(IAsyncResult callbackResult)
    {
        HttpWebRequest request = (HttpWebRequest)callbackResult.AsyncState;
        HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(callbackResult);
        using (StreamReader httpWebStreamReader = new StreamReader(response.GetResponseStream()))
        {
            string result = httpWebStreamReader.ReadToEnd();
            stat.Text = result;
        }

    }

I was facing this issue because of ssh-agent conflicts on Windows-10. If you are using Windows-10 as well then please go through my detailed solution to this here

If you are not on windows-10 then please check if:

1. your ssh-agent is running
2. correct private key is added to your ssh-agent
3. correct public key is added to your github account (You are able to clone, so this step should be fine)

You can use - desc / to see the view/table definition in Redshift. I have been using Workbench/J as a SQL client for Redshift and it gives the definition in the Messages tab adjacent to Result tab.

If you want to make it easier for yourself by only having tabs, replace the spaces with tabs:

tr " " "\t" < <file> | sort <options>

The b denotes a byte string.

Bytes are the actual data. Strings are an abstraction.

If you had multi-character string object and you took a single character, it would be a string, and it might be more than 1 byte in size depending on encoding.

If took 1 byte with a byte string, you'd get a single 8-bit value from 0-255 and it might not represent a complete character if those characters due to encoding were > 1 byte.

TBH I'd use strings unless I had some specific low level reason to use bytes.

Found another (manual) answer which worked well for me

1. Select the column.
2. Choose Data tab
3. Text to Columns - opens new box
4. (choose Delimited), Next
5. (uncheck all boxes, use "none" for text qualifier), Next
6. use the ymd option from the Date dropdown.
7. Click Finish

The answer already been accepted, I just write a short technique for the same purpose.

var fieldPair = '';
$(":input").each(function(){
fieldPair += $(this).attr("name") + ':' + $(this).val() + ';';
});

console.log(fieldPair);

Just found a post Atomic vs. Non-Atomic Operations to be very helpful to me.

"An operation acting on shared memory is atomic if it completes in a single step relative to other threads.

When an atomic store is performed on a shared memory, no other thread can observe the modification half-complete.

When an atomic load is performed on a shared variable, it reads the entire value as it appeared at a single moment in time."

OPTional

It holds optional software and packages that you install that are not required for the system to run.

$id = array(2222,3333,4444,5555,6666);
$ids = "'".implode("','",$id)."'";

Or

$ids = sprintf("'%s'", implode("','", $id ) );

protected void onResume() {
        super.onResume();
        viewPagerAdapter.notifyDataSetChanged();
    }

Do write viewpagerAdapter.notifyDataSetChanged(); in onResume() in MainActivity. Good Luck :)

various option are available such as:

 Double d= 123.12;
BigDecimal b = new BigDecimal(d, MathContext.DECIMAL64); // b = 123.1200000
b = b.setScale(2, BigDecimal.ROUND_HALF_UP);  // b = 123.12

BigDecimal b1 =new BigDecimal(collectionFileData.getAmount(), MathContext.DECIMAL64).setScale(2, BigDecimal.ROUND_HALF_UP)  // b1= 123.12

 d = (double) Math.round(d * 100) / 100;
BigDecimal b2 = new BigDecimal(d.toString());  // b2= 123.12

SMS Push uses SMS as a carrier, WAP uses download via WAP.

You may usually if you have multiple keys setup via ssh on your system (my device is running Windows 10), you will encounter this issue, the fix is to:

Precondition: Setup up your SSH Keys as indicated by GitLab

1. open /c/Users//.ssh/config file with Notepad++ or your favourite editor
2. paste the following inside it. Host IdentityFile ~/.ssh/

Please note, there is a space before the second line, very important to avoid this solution not working.

my apple processor version10.6.3 is error and i can click system preference

These are really two questions.

The first one is answered here: Calling a Sub in VBA

To the second one, protip: there is no main subroutine in VBA. Forget procedural, general-purpose languages. VBA subs are "macros" - you can run them by hitting Alt+F8 or by adding a button to your worksheet and calling up the sub you want from the automatically generated "ButtonX_Click" sub.

If you are using logging then thread names will be helpful. A thread factory helps with this:

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;

public class Main {

    static Logger LOG = LoggerFactory.getLogger(Main.class);

    static class MyTask implements Runnable {
        public void run() {
            LOG.info("A pool thread is doing this task");
        }
    }

    public static void main(String[] args) {
        ExecutorService taskExecutor = Executors.newFixedThreadPool(5, new MyThreadFactory());
        taskExecutor.execute(new MyTask());
        taskExecutor.shutdown();
    }
}

class MyThreadFactory implements ThreadFactory {
    private int counter;
    public Thread newThread(Runnable r) {
        return new Thread(r, "My thread # " + counter++);
    }
}

Output:

[   My thread # 0] Main         INFO  A pool thread is doing this task

I like JoshAdel's answer because of the focus on performance. A minor performance improvement is to avoid the overhead of initializing with zeros, only to be overwritten. This has a measurable difference when N is large, empty is used instead of zeros, and the column of zeros is written as a separate step:

In [1]: import numpy as np

In [2]: N = 10000

In [3]: a = np.ones((N,N))

In [4]: %timeit b = np.zeros((a.shape[0],a.shape[1]+1)); b[:,:-1] = a
1 loops, best of 3: 492 ms per loop

In [5]: %timeit b = np.empty((a.shape[0],a.shape[1]+1)); b[:,:-1] = a; b[:,-1] = np.zeros((a.shape[0],))
1 loops, best of 3: 407 ms per loop

• [Your Drive]:\xampp\php\php.ini: In this file uncomment the following line:

  extension=php_ldap.dll

• Move the file: libsasl.dll, from [Your Drive]:\xampp\php to [Your Drive]:\xampp\apache\bin Restart Apache. You can now use functions of the LDAP Module!

Here's one way in XSLT 2

<?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">   <xsl:template match="@*|node()">     <xsl:copy>       <xsl:apply-templates select="@*|node()"/>     </xsl:copy>   </xsl:template>   <xsl:template match="text()">     <xsl:value-of select="translate(.,'&quot;','''')"/>   </xsl:template> </xsl:stylesheet> 

Doing it in XSLT1 is a little more problematic as it's hard to get a literal containing a single apostrophe, so you have to resort to a variable:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">   <xsl:template match="@*|node()">     <xsl:copy>       <xsl:apply-templates select="@*|node()"/>     </xsl:copy>   </xsl:template>   <xsl:variable name="apos">'</xsl:variable>   <xsl:template match="text()">     <xsl:value-of select="translate(.,'&quot;',$apos)"/>   </xsl:template> </xsl:stylesheet> 

My two cents

Export

ES6

myClass.js

export class MyClass1 {
}
export class MyClass2 {
}

other.js

import { MyClass1, MyClass2 } from './myClass';

CommonJS Alternative

myClass.js

class MyClass1 {
}
class MyClass2 {
}
module.exports = { MyClass1, MyClass2 }
// or
// exports = { MyClass1, MyClass2 };

other.js

const { MyClass1, MyClass2 } = require('./myClass');

Export Default

ES6

myClass.js

export default class MyClass {
}

other.js

import MyClass from './myClass';

CommonJS Alternative

myClass.js

module.exports = class MyClass1 {
}

other.js

const MyClass = require('./myClass');

Hope this helps

body {
    background: url(images/image_name.jpg) no-repeat center center fixed; 
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

Here is a good solution to get your image to cover the full area of the web app perfectly

How do you run PowerShell built-in scripts inside of your scripts?

How do you use built-in scripts like

Get-Location
pwd
ls
dir
split-path
::etc...

Those are ran by your computer, automatically checking the path of the script.

Similarly, I can run my custom scripts by just putting the name of the script in the script-block

::sid.ps1 is a PS script I made to find the SID of any user
::it takes one argument, that argument would be the username
echo $(sid.ps1 jowers)


(returns something like)> S-X-X-XXXXXXXX-XXXXXXXXXX-XXX-XXXX


$(sid.ps1 jowers).Replace("S","X")

(returns same as above but with X instead of S)

Go on to the powershell command line and type

> $profile

This will return the path to a file that our PowerShell command line will execute every time you open the app.

It will look like this

C:\Users\jowers\OneDrive\Documents\WindowsPowerShell\Microsoft.PowerShellISE_profile.ps1

Go to Documents and see if you already have a WindowsPowerShell directory. I didn't, so

> cd \Users\jowers\Documents
> mkdir WindowsPowerShell
> cd WindowsPowerShell
> type file > Microsoft.PowerShellISE_profile.ps1

We've now created the script that will launch every time we open the PowerShell App.

The reason we did that was so that we could add our own folder that holds all of our custom scripts. Let's create that folder and I'll name it "Bin" after the directories that Mac/Linux hold its scripts in.

> mkdir \Users\jowers\Bin

Now we want that directory to be added to our $env:path variable every time we open the app so go back to the WindowsPowerShell Directory and

> start Microsoft.PowerShellISE_profile.ps1

Then add this

$env:path += ";\Users\jowers\Bin"

Now the shell will automatically find your commands, as long as you save your scripts in that "Bin" directory.

Relaunch the powershell and it should be one of the first scripts that execute.

Run this on the command line after reloading to see your new directory in your path variable:

> $env:Path

Now we can call our scripts from the command line or from within another script as simply as this:

$(customScript.ps1 arg1 arg2 ...)

As you see we must call them with the .ps1 extension until we make aliases for them. If we want to get fancy.

Depends on what your definition of "offscreen" is. Is that within the viewport, or within the defined boundaries of your page?

Using Element.getBoundingClientRect() you can easily detect whether or not your element is within the boundries of your viewport (i.e. onscreen or offscreen):

jQuery.expr.filters.offscreen = function(el) {
  var rect = el.getBoundingClientRect();
  return (
           (rect.x + rect.width) < 0 
             || (rect.y + rect.height) < 0
             || (rect.x > window.innerWidth || rect.y > window.innerHeight)
         );
};

You could then use that in several ways:

// returns all elements that are offscreen
$(':offscreen');

// boolean returned if element is offscreen
$('div').is(':offscreen');

A Stack is a LIFO (Last In First Out) data structure. The push and pop operations are simple. Push puts something on the stack, pop takes something off. You put onto the top, and take off the top, to preserve the LIFO order.

edit -- corrected from FIFO, to LIFO. Facepalm!

to illustrate, you start with a blank stack

|

then you push 'x'

| 'x'

then you push 'y'

| 'x' 'y'

then you pop

| 'x'

I ended up doing this for macOS. I'm sure this is terrible in many ways:

#!/bin/sh
# watchAndRun
if [ $# -ne 2 ]; then
    echo "Use like this:"
    echo "   $0 filename-to-watch command-to-run"
    exit 1
fi
if which fswatch >/dev/null; then
    echo "Watching $1 and will run $2"
    while true; do fswatch --one-event $1 >/dev/null && $2; done
else
    echo "You might need to run: brew install fswatch"
fi

With literal syntax you can check as follows

static const NSString* kKeyToCheck = @"yourKey"
if (xyz[kKeyToCheck])
  NSLog(@"Key: %@, has Value: %@", kKeyToCheck, xyz[kKeyToCheck]);
else
 NSLog(@"Key pair do not exits for key: %@", kKeyToCheck); 

This is a method which will work:

import java.awt.image.BufferedImage;
import java.awt.Rectangle;
import java.awt.Color;
import java.awt.Graphics;

public BufferedImage crop(BufferedImage src, Rectangle rect)
{
    BufferedImage dest = new BufferedImage(rect.getWidth(), rect.getHeight(), BufferedImage.TYPE_ARGB_PRE);
    Graphics g = dest.getGraphics();
    g.drawImage(src, 0, 0, rect.getWidth(), rect.getHeight(), rect.getX(), rect.getY(), rect.getX() + rect.getWidth(), rect.getY() + rect.getHeight(), null);
    g.dispose();
    return dest;
}

Of course you have to make your own JComponent:

import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.image.BufferedImage;
import java.awt.Rectangle;
import java.awt.Graphics;
import javax.swing.JComponent;

public class JImageCropComponent extends JComponent implements MouseListener, MouseMotionListener
{
   private BufferedImage img;
   private int x1, y1, x2, y2;

   public JImageCropComponent(BufferedImage img)
   {
       this.img = img;
       this.addMouseListener(this);
       this.addMouseMotionListener(this);
   }

   public void setImage(BufferedImage img)
   {
       this.img = img;
   }

   public BufferedImage getImage()
   {
       return this;
   }

   @Override
   public void paintComponent(Graphics g)
   {
      g.drawImage(img, 0, 0, this);
      if (cropping)
      {
          // Paint the area we are going to crop.
          g.setColor(Color.RED);
          g.drawRect(Math.min(x1, x2), Math.min(y1, y2), Math.max(x1, x2), Math.max(y1, y2));
      }
   }

   @Override
   public void mousePressed(MouseEvent evt)
   {
       this.x1 = evt.getX();
       this.y1 = evt.getY();
   }

   @Override
   public void mouseReleased(MouseEvent evt)
   {
       this.cropping = false;
       // Now we crop the image;
       // This is the method a wrote in the other snipped
       BufferedImage cropped = crop(new Rectangle(Math.min(x1, x2), Math.min(y1, y2), Math.max(x1, x2), Math.max(y1, y2));
       // Now you have the cropped image;
       // You have to choose what you want to do with it
       this.img = cropped;
   }

   @Override
   public void mouseDragged(MouseEvent evt)
   {
       cropping = true;
       this.x2 = evt.getX();
       this.y2 = evt.getY();
   }

   //TODO: Implement the other unused methods from Mouse(Motion)Listener

}

I didn't test it. Maybe there are some mistakes (I'm not sure about all the imports).

You can put the crop(img, rect) method in this class. Hope this helps.

Swift 3

For anyone stumbling on this, here is the swift answer.

self.parent?.present(viewController, animated: true, completion: nil)

For ASP.NET web pages (not MVC), you can use Sys.UI.DomEvent object as wrapper of native event.

<div onclick="event.stopPropagation();" ...

or, pass event as a parameter to inner function:

<div onclick="someFunction(event);" ...

and in someFunction:

function someFunction(event){
    event.stopPropagation(); // here Sys.UI.DomEvent.stopPropagation() method is used
    // other onclick logic
}

You can use this code :

.row :nth-child(odd){
  background-color:red;
}
.row :nth-child(even){
  background-color:green;
}

Demo : http://codepen.io/mouhammed/pen/rblsC

what about this?

console.table(object)

In this case you are restarting your node.js server often because it's in active development and you are making changes all the time. There is a great hot reload script that will handle this for you by watching all your .js files and restarting your node.js server if any of those files have changed. Just the ticket for rapid development and test.

The script and explanation on how to use it are at here at Draco Blue.

This will do what you are looking for in C# (WebDriver/Selenium 2.0)

var browser = new FirefoxDriver();
var overallTimeout = Timespan.FromSeconds(10);
var sleepCycle = TimeSpan.FromMiliseconds(50);
var wait = new WebDriverWait(new SystemClock(), browser, overallTimeout, sleepCycle);
var hasTimedOut = wait.Until(_ => /* here goes code that looks for the map */);

And never use Thread.Sleep because it makes your tests unreliable

Need Key & Value in Iteration

Use entrySet() to iterate through Map and need to access value and key:

Map<String, Person> hm = new HashMap<String, Person>();

hm.put("A", new Person("p1"));
hm.put("B", new Person("p2"));
hm.put("C", new Person("p3"));
hm.put("D", new Person("p4"));
hm.put("E", new Person("p5"));

Set<Map.Entry<String, Person>> set = hm.entrySet();

for (Map.Entry<String, Person> me : set) {
  System.out.println("Key :"+me.getKey() +" Name : "+ me.getValue().getName()+"Age :"+me.getValue().getAge());

}

Need Key in Iteration

If you want just to iterate over keys of map you can use keySet()

for(String key: map.keySet()) {
     Person value = map.get(key); 
}

Need Value in Iteration

If you just want to iterate over values of map you can use values()

for(Person person: map.values()) {

}

something like

for (int rows = 0; rows < dataGrid.Rows.Count; rows++)
{
     for (int col= 0; col < dataGrid.Rows[rows].Cells.Count; col++)
    {
        string value = dataGrid.Rows[rows].Cells[col].Value.ToString();

    }
} 

example without using index

foreach (DataGridViewRow row in dataGrid.Rows)
{ 
    foreach (DataGridViewCell cell in row.Cells)
    {
        string value = cell.Value.ToString();

    }
}

Powershell

For powershell, use #:

PS C:\> echo foo # This is a comment
foo

Conceptually, repeated subtractions of 256 are made to your number, until it is in the range -128 to +127. So in your case, you start with 132, then end up with -124 in one step.

Computationally, this corresponds to extracting the 8 least significant bits from your original number. (And note that the most significant bit of these 8 becomes the sign bit.)

Note that in other languages this behaviour is not defined (e.g. C and C++).

You may use this formula to get the path of the file:

=LEFT(CELL("filename"),FIND("[",CELL("filename"),1)-1)

Here is the latest method using the .map function in javascript.

Simple table code..

<table class="table table-hover">
    <thead class="thead-dark">
        <tr>
         <th scope="col">Tour</th>
         <th scope="col">Day</th>
         <th scope="col">Time</th>
         <th scope="col">Highlights</th>
         <th scope="col">Action</th>
       </tr>
    </thead>
  <tbody id="tableBody">
                            
  </tbody>

and here is javascript code to append something in the table body.

    const data = "some kind of json data or object of arrays";
                const tableData = data.map(function(value){
                    return (
                        `<tr>
                            <td>${value.Name}</td>
                            <td>${value.Day}</td>
                            <td>${value.Time}</td>
                            <td>${value.Highlights}</td>
                            <td class="text-center"><a class="btn btn-primary" href="route.html?id=${value.ID}" role="button">Details</a></td>
                        </tr>`
                    );
                }).join('');
            const tabelBody = document.querySelector("#tableBody");
                tableBody.innerHTML = tableData;

Try the below code for delay

//MARK: First Way

func delayForWork() {
    delay(3.0) {
        print("delay for 3.0 second")
    }
}

delayForWork()

// MARK: Second Way

DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
    // your code here delayed by 0.5 seconds
}

Try this:

#!/usr/bin/env python

import os
import paramiko 
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('hostname', username="username", password="password")
sftp = ssh.open_sftp()
localpath = '/home/e100075/python/ss.txt'
remotepath = '/home/developers/screenshots/ss.txt'
sftp.put(localpath, remotepath)
sftp.close()
ssh.close()

In Python2 you could use:

python -m compileall <pythonic-project-name>

which compiles all .py files to .pyc files in a project which contains packages as well as modules.

In Python3 you could use:

python3 -m compileall <pythonic-project-name>

which compiles all .py files to __pycache__ folders in a project which contains packages as well as modules.

Or with browning from this post:

You can enforce the same layout of .pyc files in the folders as in Python2 by using:

python3 -m compileall -b <pythonic-project-name>

The option -b triggers the output of .pyc files to their legacy-locations (i.e. the same as in Python2).

There's a short discussion of what appears to be this issue here. The page it links to appears to be gone, but one of the responses might be what you need:

Indeed, copying US_export_policy.jar and local_policy.jar from core/lib/jce to $JAVA_HOME/jre/lib/security helped. Thanks.

you can get the product name like this

foreach ( $cart_object->cart_contents as  $value ) {
        $_product     = apply_filters( 'woocommerce_cart_item_product', $value['data'] );

        if ( ! $_product->is_visible() ) {
                echo $_product->get_title();
        } else {
                echo $_product->get_title();
        }


     }

That is not changing due to the default theme set to the screen.

So just change them for the widget you are drawing by wrapping your TextField with new ThemeData()

child: new Theme(
          data: new ThemeData(
            primaryColor: Colors.redAccent,
            primaryColorDark: Colors.red,
          ),
          child: new TextField(
            decoration: new InputDecoration(
                border: new OutlineInputBorder(
                    borderSide: new BorderSide(color: Colors.teal)),
                hintText: 'Tell us about yourself',
                helperText: 'Keep it short, this is just a demo.',
                labelText: 'Life story',
                prefixIcon: const Icon(
                  Icons.person,
                  color: Colors.green,
                ),
                prefixText: ' ',
                suffixText: 'USD',
                suffixStyle: const TextStyle(color: Colors.green)),
          ),
        ));

If the answers mentioned above are not working, you can try deleting all the files in data, except for the folder

Goto: C:\xampp\mysql\data

After that: Goto: C:\xampp\mysql\bin

then open with notepad my.ini , Its look like this.

Then delete or put into comment the port 3306 and change it to 8111 then run xamp with administrator and its work well.

If you don't use prioritized tasks, this is actually pretty simple if you're using Redis. To get the task counts:

redis-cli -h HOST -p PORT -n DATABASE_NUMBER llen QUEUE_NAME

But, prioritized tasks use a different key in redis, so the full picture is slightly more complicated. The full picture is that you need to query redis for every priority of task. In python (and from the Flower project), this looks like:

PRIORITY_SEP = '\x06\x16'
DEFAULT_PRIORITY_STEPS = [0, 3, 6, 9]


def make_queue_name_for_pri(queue, pri):
    """Make a queue name for redis

    Celery uses PRIORITY_SEP to separate different priorities of tasks into
    different queues in Redis. Each queue-priority combination becomes a key in
    redis with names like:

     - batch1\x06\x163 <-- P3 queue named batch1

    There's more information about this in Github, but it doesn't look like it 
    will change any time soon:

      - https://github.com/celery/kombu/issues/422

    In that ticket the code below, from the Flower project, is referenced:

      - https://github.com/mher/flower/blob/master/flower/utils/broker.py#L135

    :param queue: The name of the queue to make a name for.
    :param pri: The priority to make a name with.
    :return: A name for the queue-priority pair.
    """
    if pri not in DEFAULT_PRIORITY_STEPS:
        raise ValueError('Priority not in priority steps')
    return '{0}{1}{2}'.format(*((queue, PRIORITY_SEP, pri) if pri else
                                (queue, '', '')))


def get_queue_length(queue_name='celery'):
    """Get the number of tasks in a celery queue.

    :param queue_name: The name of the queue you want to inspect.
    :return: the number of items in the queue.
    """
    priority_names = [make_queue_name_for_pri(queue_name, pri) for pri in
                      DEFAULT_PRIORITY_STEPS]
    r = redis.StrictRedis(
        host=settings.REDIS_HOST,
        port=settings.REDIS_PORT,
        db=settings.REDIS_DATABASES['CELERY'],
    )
    return sum([r.llen(x) for x in priority_names])

If you want to get an actual task, you can use something like:

redis-cli -h HOST -p PORT -n DATABASE_NUMBER lrange QUEUE_NAME 0 -1

From there you'll have to deserialize the returned list. In my case I was able to accomplish this with something like:

r = redis.StrictRedis(
    host=settings.REDIS_HOST,
    port=settings.REDIS_PORT,
    db=settings.REDIS_DATABASES['CELERY'],
)
l = r.lrange('celery', 0, -1)
pickle.loads(base64.decodestring(json.loads(l[0])['body']))

Just be warned that deserialization can take a moment, and you'll need to adjust the commands above to work with various priorities.

You can remove all the dependencies by recursively uninstalling all of them and then delete the venv.

Edit including Isaac Turner commentary

source venv/bin/activate
pip freeze > requirements.txt
pip uninstall -r requirements.txt -y
deactivate
rm -r venv/

A linq-to-sql query isn't executed as code, but rather translated into SQL. Sometimes this is a "leaky abstraction" that yields unexpected behaviour.

One such case is null handling, where there can be unexpected nulls in different places. ...DefaultIfEmpty(0).Sum(0) can help in this (quite simple) case, where there might be no elements and sql's SUM returns null whereas c# expect 0.

A more general approach is to use ?? which will be translated to COALESCE whenever there is a risk that the generated SQL returns an unexpected null:

var creditsSum = (from u in context.User
              join ch in context.CreditHistory on u.ID equals ch.UserID                                        
              where u.ID == userID
              select (int?)ch.Amount).Sum() ?? 0;

This first casts to int? to tell the C# compiler that this expression can indeed return null, even though Sum() returns an int. Then we use the normal ?? operator to handle the null case.

Based on this answer, I wrote a blog post with details for both LINQ to SQL and LINQ to Entities.

Not sure if you still need it.

SELECT FROM_UNIXTIME(FLOOR((UNIX_TIMESTAMP(timestamp))/300)*300) AS t,timestamp,count(1) as c from users GROUP BY t ORDER BY t;

2016-10-29 19:35:00 | 2016-10-29 19:35:50 | 4 |

2016-10-29 19:40:00 | 2016-10-29 19:40:37 | 5 |

2016-10-29 19:45:00 | 2016-10-29 19:45:09 | 6 |

2016-10-29 19:50:00 | 2016-10-29 19:51:14 | 4 |

2016-10-29 19:55:00 | 2016-10-29 19:56:17 | 1 |

I have a simple and generic hack to perform key/value if statement instead of boolean-only in mustache (and in an extremely readable fashion!) :

function buildOptions (object) {
    var validTypes = ['string', 'number', 'boolean'];
    var value;
    var key;
    for (key in object) {
        value = object[key];
        if (object.hasOwnProperty(key) && validTypes.indexOf(typeof value) !== -1) {
            object[key + '=' + value] = true;
        }
    }
    return object;
}

With this hack, an object like this:

var contact = {
  "id": 1364,
  "author_name": "Mr Nobody",
  "notified_type": "friendship",
  "action": "create"
};

Will look like this before transformation:

var contact = {
  "id": 1364,
  "id=1364": true,
  "author_name": "Mr Nobody",
  "author_name=Mr Nobody": true,
  "notified_type": "friendship",
  "notified_type=friendship": true,
  "action": "create",
  "action=create": true
};

And your mustache template will look like this:

{{#notified_type=friendship}}
    friendship…
{{/notified_type=friendship}}

{{#notified_type=invite}}
    invite…
{{/notified_type=invite}}

I'm all for good names, and I often write about the importance of taking great care when choosing names for things. For this very same reason, I am wary of metaphors when naming things. In the original question, "factory" and "synchronizer" look like good names for what they seem to mean. However, "shepherd" and "nanny" are not, because they are based on metaphors. A class in your code can't be literally a nanny; you call it a nanny because it looks after some other things very much like a real-life nanny looks after babies or kids. That's OK in informal speech, but not OK (in my opinion) for naming classes in code that will have to be maintained by who knows whom who knows when.

Why? Because metaphors are culture dependent and often individual dependent as well. To you, naming a class "nanny" can be very clear, but maybe it's not that clear to somebody else. We shouldn't rely on that, unless you're writing code that is only for personal use.

In any case, convention can make or break a metaphor. The use of "factory" itself is based on a metaphor, but one that has been around for quite a while and is currently fairly well known in the programming world, so I would say it's safe to use. However, "nanny" and "shepherd" are unacceptable.

I would try the program screen.

This isn't really possible with pure grep, at least not generally.

But if your pattern is suitable, you may be able to use grep multiple times within a pipeline to first reduce your line to a known format, and then to extract just the bit you want. (Although tools like cut and sed are far better at this).

Suppose for the sake of argument that your pattern was a bit simpler: [0-9]+_([a-z]+)_ You could extract this like so:

echo $name | grep -Ei '[0-9]+_[a-z]+_' | grep -oEi '[a-z]+'

The first grep would remove any lines that didn't match your overall patern, the second grep (which has --only-matching specified) would display the alpha portion of the name. This only works because the pattern is suitable: "alpha portion" is specific enough to pull out what you want.

(Aside: Personally I'd use grep + cut to achieve what you are after: echo $name | grep {pattern} | cut -d _ -f 2. This gets cut to parse the line into fields by splitting on the delimiter _, and returns just field 2 (field numbers start at 1)).

Unix philosophy is to have tools which do one thing, and do it well, and combine them to achieve non-trivial tasks, so I'd argue that grep + sed etc is a more Unixy way of doing things :-)

I'm not Reputable enough to upvote or comment yet, but LukeH's answer was spot on for me.

As AES encryption is the standard to use now, it produces a base64 string (at least all the encrypt/decrypt implementations I've seen). This string has a length in multiples of 4 (string.length % 4 = 0)

The strings I was getting contained + and = on the beginning or end, and when you just concatenate that into a URL's querystring, it will look right (for instance, in an email you generate), but when the the link is followed and the .NET page recieves it and puts it into this.Page.Request.QueryString, those special characters will be gone and your string length will not be in a multiple of 4.

As the are special characters at the FRONT of the string (ex: +), as well as = at the end, you can't just add some = to make up the difference as you are altering the cypher text in a way that doesn't match what was actually in the original querystring.

So, wrapping the cypher text with HttpUtility.URLEncode (not HtmlEncode) transforms the non-alphanumeric characters in a way that ensures .NET parses them back into their original state when it is intepreted into the querystring collection.

The good thing is, we only need to do the URLEncode when generating the querystring for the URL. On the incoming side, it's automatically translated back into the original string value.

Here's some example code

string cryptostring = MyAESEncrypt(MySecretString);
string URL = WebFunctions.ToAbsoluteUrl("~/ResetPassword.aspx?RPC=" + HttpUtility.UrlEncode(cryptostring));

You can use jQuery toggle to show and hide the div. The script will be like this

  <script type="text/javascript">
    jQuery(function(){
      jQuery("#music").click(function () {
        jQuery("#musicinfo").toggle("slow");
      });
    });
</script>

Not being able to reply to/endorse this answer, so posting here:

Indeed, the format of the source/destination ranges when moving data from one range to another might cause this error as well.

In my case, the range I wanted to copy contained a date formatted column, and the column contained one cell with an invalid date value (it was not even formatted due to its value, which was a negative integer). So the copy operation between the two ranges was halting at the said cell yielding the very error message discussed here.

The solution in my case was to use Range.Value2 instead of Range.Value, which caused Excel to bypass formatting the cell as a date (more details here). However, this will render your date and time columns to display as integers and decimals. You will, however, be able to change the formats to the desired ones if you know where to expect the date and time values by setting their Range/Column/Cell.NumberFormat property accordingly.

I have been faced with this problem.

The cause is your table doesn't have a primary key field.

And I have a simple solution: Set a field to primary key to specific field that suits your business logic.

For example, I have database thesis_db and field thesis_id, I will press button Primary (key icon) to set thesis_id to become primary key field:

Late to the game, but I found this method is extremely intuitive. https://codepen.io/adamchenwei/pen/BRNxJr

CSS

.imageContainer {
  border: 1px black solid;

  width: 450px;
  height: 200px;
  overflow: hidden;
}
.imageHolder {
  border: 1px red dotted;

  height: 100%;
  display:flex;
  align-items: center;
}
.imageItself {
  height: auto;
  width: 100%;
  align-self: center;

}

HTML

<div class="imageContainer">
  <div class="imageHolder">
    <img class="imageItself" src="http://www.fiorieconfetti.com/sites/default/files/styles/product_thumbnail__300x360_/public/fiore_viola%20-%202.jpg" />
  </div>
</div>

I'm running Ubuntu 14.04 and to fix it for me I had to create a symlink for node to point to nodejs as described here:

nodejs vs node on ubuntu 12.04

Once I did that I re-ran these commands:

rm -rf node_modules
npm cache clean
npm install

This is really easy using jQuery.

For instance:

$(".left").mouseover(function(){$(".left1").show()});
$(".left").mouseout(function(){$(".left1").hide()});

I've update your fiddle: http://jsfiddle.net/TqDe9/2/

The problem is caused by your #grid having a width:1140px.

You need to set a min-width:1140px on the body.

This will stop the body from getting smaller than the #grid. Remove width:100% as block level elements take up the available width by default. Live example: http://jsfiddle.net/tw16/LX8R3/

html, body{
    margin:0;
    padding:0;
    min-width: 1140px; /* this is the important part*/
}
#grid-container{
    background:#f8f8f8 url(../images/grid-container-bg.gif) repeat-x top left;
}
#grid{
    width:1140px;
    margin:0px auto;
}

int rgb = new Color(r, g, b).getRGB();

Firefox and Chrome tested:

var link = document.createElement('a');
link.download = 'fileName.ext'
link.href = 'http://down.serv/file.ext';

// Because firefox not executing the .click() well
// We need to create mouse event initialization.
var clickEvent = document.createEvent("MouseEvent");
clickEvent.initEvent("click", true, true);

link.dispatchEvent(clickEvent);

This is actually the "chrome" way solution for firefox (I am not tested it on other browsers, so please leave comments about the compilability)

Solution is you need to add json file extension type in MIME Types

Method 1

Go to IIS, Select your application and Find MIME Types

Click on Add from Right panel

File Name Extension = .json

MIME Type = application/json

After adding .json file type in MIME Types, Restart IIS and try to access json file

Method 2

Go to web.config of that application and add this lines in it

 <system.webServer>
   <staticContent>
     <mimeMap fileExtension=".json" mimeType="application/json" />
   </staticContent>
 </system.webServer>

I have another solution to do it without dynamic query. We can do it with the help of xquery as well.

    SET @Xml = cast(('<A>'+replace('3,4,22,6014',',' ,'</A><A>')+'</A>') AS XML)
    Select @Xml

    SELECT A.value('.', 'varchar(max)') as [Column] FROM @Xml.nodes('A') AS FN(A)

Here is the complete solution : http://raresql.com/2011/12/21/how-to-use-multiple-values-for-in-clause-using-same-parameter-sql-server/

I change css style in Javascript function.

But Uncaught TypeError: bild is null .

If I run it in a normal html file it work.

CODE:

  var text = document.getElementById("text");
var bild = document.getElementById("bild");
var container = document.getElementById("container");

bild.style["background-image"] = "url('stock-bild-portrait-of-confident-senior-business-woman-standing-in-office-with-her-arms-crossed-mature-female-1156978234.jpg')";
//bild.style.background-image = "url('stock-bild-portrait-of-confident-senior-business-woman-standing-in-office-with-her-arms-crossed-mature-female-1156978234.jpg')";

 //  bild.style["background-image"] =  "url('" +  defaultpic + "')";
 alert (bild.style["background-image"]) ;
 bild.style["background-size"] = "300px";
 bild.style["background-repeat"] = "no-repeat";
 bild.style["background-position"] = "center";
 bild.style["border-radius"] = "50%";
 bild.style["background-clip"] = "border-box";
 bild.style["transition"] = "background-size 0.2s";
 bild.style["transition-timing-function"] = "cubic-bezier(.07,1.41,.82,1.41)";
 bild.style["display"] = "block";
 bild.style["width"] = "100px";
 bild.style["height"] = "100px";

 bild.style["text-decoration"] = "none";
 bild.style["cursor"] = "pointer";
 bild.style["overflow"] = "hidden";
 bild.style["text-indent"] = "100%";
 bild.style["white-space"] = "nowrap";

 container.style["position"] = "relative";
 container.style["font-family"] = "Arial";

 text.style["position"] = "center";
 text.style["bottom"] = "5px";
 text.style["left"] = "1px";
 text.style["color"] = "white";

Using PowerShell

From Windows 8.1 and Windows Server 2012 R2 (Windows PowerShell 4.0) and upwards, you can create a self-signed certificate using the new New-SelfSignedCertificate cmdlet:

Examples:

New-SelfSignedCertificate -DnsName www.mydomain.com -CertStoreLocation cert:\LocalMachine\My

New-SelfSignedCertificate -DnsName subdomain.mydomain.com -CertStoreLocation cert:\LocalMachine\My

New-SelfSignedCertificate -DnsName *.mydomain.com -CertStoreLocation cert:\LocalMachine\My

Using the IIS Manager

1. Launch the IIS Manager
2. At the server level, under IIS, select Server Certificates
3. On the right hand side under Actions select Create Self-Signed Certificate
4. Where it says "Specify a friendly name for the certificate" type in an appropriate name for reference.
   1. Examples: www.domain.com or subdomain.domain.com
5. Then, select your website from the list on the left hand side
6. On the right hand side under Actions select Bindings
7. Add a new HTTPS binding and select the certificate you just created (if your certificate is a wildcard certificate you'll need to specify a hostname)
8. Click OK and test it out.

The code was most likely compiled with a later JDK (without using cross-compilation options) and is being run on an earlier JRE. While upgrading the JRE is one solution, it would be better to use the cross-compilation options to ensure the code will run on whatever JRE is intended as the minimum version for the app.

I have read that any variable declared outside a function is a global variable. I have done so, but in another *.cpp File that variable could not be found. So it was not realy global.

According to the concept of scope, your variable is global. However, what you've read/understood is overly-simplified.

Possibility 1

Perhaps you forgot to declare the variable in the other translation unit (TU). Here's an example:

a.cpp

int x = 5; // declaration and definition of my global variable

b.cpp

// I want to use `x` here, too.
// But I need b.cpp to know that it exists, first:
extern int x; // declaration (not definition)

void foo() {
   cout << x;  // OK
}

Typically you'd place extern int x; in a header file that gets included into b.cpp, and also into any other TU that ends up needing to use x.

Possibility 2

Additionally, it's possible that the variable has internal linkage, meaning that it's not exposed across translation units. This will be the case by default if the variable is marked const ([C++11: 3.5/3]):

a.cpp

const int x = 5; // file-`static` by default, because `const`

b.cpp

extern const int x;    // says there's a `x` that we can use somewhere...

void foo() {
   cout << x;    // ... but actually there isn't. So, linker error.
}

You could fix this by applying extern to the definition, too:

a.cpp

extern const int x = 5;

This whole malarky is roughly equivalent to the mess you go through making functions visible/usable across TU boundaries, but with some differences in how you go about it.

Actually, the problem is that either /sys/kernel/debug is not mounted, or that the running kernel has no ftrace tracers compiled in so that /sys/kernel/debug/tracing is unavailable. This is the code throwing the error (platform_frameworks_native/libs/utils/Trace.cpp):

void Tracer::init() {
    Mutex::Autolock lock(sMutex);

    if (!sIsReady) {
        add_sysprop_change_callback(changeCallback, 0);

        const char* const traceFileName =
                "/sys/kernel/debug/tracing/trace_marker";
        sTraceFD = open(traceFileName, O_WRONLY);
        if (sTraceFD == -1) {
            ALOGE("error opening trace file: %s (%d)", strerror(errno), errno);
            sEnabledTags = 0;   // no tracing can occur
        } else {
            loadSystemProperty();
        }

        android_atomic_release_store(1, &sIsReady);
    }
}

The log message could definitely be a bit more informative.

Go to the source! Grady Booch says (in Object Oriented Analysis and Design, page 49, second edition):

Abstraction and encapsulation are complementary concepts: abstraction focuses on the observable behavior of an object... encapsulation focuses upon the implementation that gives rise to this behavior... encapsulation is most often achieved through information hiding, which is the process of hiding all of the secrets of object that do not contribute to its essential characteristics.

In other words: abstraction = the object externally; encapsulation (achieved through information hiding) = the object internally,

Example: In the .NET Framework, the System.Text.StringBuilder class provides an abstraction over a string buffer. This buffer abstraction lets you work with the buffer without regard for its implementation. Thus, you're able to append strings to the buffer without regard for how the StringBuilder internally keeps track of things such the pointer to the buffer and managing memory when the buffer gets full (which it does with encapsulation via information hiding).

rp

For those who might have the same problem as me, I got this error when the DB I was using was actually master, and not the DB I should have been using.

Just put use [DBName] on the top of your script, or manually change the DB in use in the SQL Server Management Studio GUI.

Found these docu on the google docu pages:

• row --- int --- top row of the range
• column --- int--- leftmost column of the range
• optNumRows --- int --- number of rows in the range.
• optNumColumns --- int --- number of columns in the range

In your example, you would get (if you picked the 3rd row) "C3:O3", cause C --> O is 12 columns

edit

Using the example on the docu:

// The code below will get the number of columns for the range C2:G8
// in the active spreadsheet, which happens to be "4"
var count = SpreadsheetApp.getActiveSheet().getRange(2, 3, 6, 4).getNumColumns(); Browser.msgBox(count);

The values between brackets:
2: the starting row = 2
3: the starting col = C
6: the number of rows = 6 so from 2 to 8
4: the number of cols = 4 so from C to G

So you come to the range: C2:G8

After importing the ABS Module (from File > Project Structure) and making sure it has Android 2.2 and Support Library v4 as dependencies, I was still getting the following error as you @Alex

Error retrieving parent for item: No resource found that matches the given name 'Theme.Sherlock.Light.DarkActionBar'

I added the newly imported module as a dependency to my main app module and that fixed the problem.

The function time.NewTicker makes a channel that sends a periodic message, and provides a way to stop it. Use it something like this (untested):

ticker := time.NewTicker(5 * time.Second)
quit := make(chan struct{})
go func() {
    for {
       select {
        case <- ticker.C:
            // do stuff
        case <- quit:
            ticker.Stop()
            return
        }
    }
 }()

You can stop the worker by closing the quit channel: close(quit).

In React Native , This worked for me

name = "hi \n\ruser"
name.replace( /[\r\n]+/gm, ""); // hi user

A new convolve recipe was merged into Python 3.10.

Given

import collections, operator

from itertools import chain, repeat


size = 3 + 1
kernel = [1/size] * size                                              

Code

def convolve(signal, kernel):
    # See:  https://betterexplained.com/articles/intuitive-convolution/
    # convolve(data, [0.25, 0.25, 0.25, 0.25]) --> Moving average (blur)
    # convolve(data, [1, -1]) --> 1st finite difference (1st derivative)
    # convolve(data, [1, -2, 1]) --> 2nd finite difference (2nd derivative)
    kernel = list(reversed(kernel))
    n = len(kernel)
    window = collections.deque([0] * n, maxlen=n)
    for x in chain(signal, repeat(0, n-1)):
        window.append(x)
        yield sum(map(operator.mul, kernel, window))

Demo

list(convolve(range(1, 6), kernel))
# [0.25, 0.75, 1.5, 2.5, 3.5, 3.0, 2.25, 1.25]

Details

A convolution is a general mathematical operation that can be applied to moving averages. This idea is, given some data, you slide a subset of data (window) as a "mask" or "kernel" across the data, carrying out a particular mathematical operation over each window. In the case of moving averages, the kernel is the average:

This recipe is a simple approach that is almost implemented as a Python module. In time, you can install more_itertools, a popular third-party package, to directly use this implementation.

Taken from the docs here:

Adds or subtracts the specified amount of time to the given calendar field, based on the calendar's rules. For example, to subtract 5 days from the current time of the calendar, you can achieve it by calling:

Calendar calendar = Calendar.getInstance(); // this would default to now
calendar.add(Calendar.DAY_OF_MONTH, -5).

The pointsize command scales the size of points, but does not affect the size of dots.

In other words, plot ... with points ps 2 will generate points of twice the normal size, but for plot ... with dots ps 2 the "ps 2" part is ignored.

You could use circular points (pt 7), which look just like dots.

Window -> Show View -> Other -> Studio/Remote

(Drag this tabbed window wherever)

Click the add FTP button (see below); #profit

find indexes of each double quotes and insert an empty string there.

Angular UI library has built-in directive ui-if for condition in template/Views upto angular ui 1.1.4

Example: Support in Angular UI upto ui 1.1.4

<div ui-if="array.length>0"></div>

ng-if available in all the angular version after 1.1.4

<div ng-if="array.length>0"></div>

if you have any data in array variable then only the div will appear

Expanding on your comment to SquareCog's reply, you could do:

INSERT INTO X VALUES(Y,Z)    WHERE Y  NOT IN (SELECT Y FROM X)
INSERT INTO X2 VALUES(Y2,Z2) WHERE Y2 NOT IN (SELECT Y FROM X2)
INSERT INTO X3 VALUES(Y3,Z3) WHERE Y3 NOT IN (SELECT Y FROM X3)

Here, I assume that column Y is present in all three tables. Note that performance will be poor if the tables are not indexed on Y.

Oh yeah, Y has a unique constraint on it--so they're indexed, and this should perform optimally.

you can press gg to locate your curser to the start of the file,then press yG to copy all the content from the start to end(G located) to buffer.good luck!

i have never done this, but it would be done like this:

var script = $('#google').attr("onclick")

It's a bit of an open door, but in the end both are about equally important.

What's worse?

1. software that does what it needs to do, but internally has problems?

2. software that is supposed to work if you look at the sources, but doesn't?

My answer: Neither is totally acceptable, but software cannot be proven to be 100% bugfree. So you're going to have to make some trade-offs. Option two is more directly noticable to clients, so you're going to get problems with that sooner. On the long run, option one is going to be problematic.

You are not writing your code inside any function, you can return from functions only. Remove return statement and just print the value you want.

It worked for me after I

• changed the $cfg['LoginCookieValidity'] in (phpmyadmin folder)/libraries/config.default.php to 999999999.

• checked the php.ini used by the phpmyadmin by php5 -i | grep php.ini.

• went to the php.ini file whose path I got from the grep command output and changed the session.gc_maxlifetime value to 999999999.

• restarted the server. In my case it was sudo service apache2 restart.

Done. Logged in phpmyadmin and checked the cookie validity in Settings -> Features -> General -> Login cookie validity. It was 999999999. Also there was no warning "Your PHP parameter session.gc_maxlifetime is lower that cookie validity ...". The warning showed after I logged in phpmyadmin before I changed the php.ini file.

Check the version of php used by the phpmyadmin. You should change the ini file of the php that is used by the phpmyadmin. I have php5 and php(i.e 7) both installed. But my phpmyadmin uses php5. So I had to search for ini file of php5.

I think your issue may be in the url pattern. Changing

<servlet-mapping>
    <servlet-name>Register</servlet-name>
    <url-pattern>/Register</url-pattern>
</servlet-mapping>

and

<form action="/Register" method="post">

may fix your problem

Just to add a bit of extra info over the right solution. Be aware that you'll need this class org.apache.catalina.filters.CorsFilter. So in order to have it, if your tomcat is not 7.0.41 or higher, download 'tomcat-catalina.7.0.41.jar' or higher ( you can do it from http://mvnrepository.com/artifact/org.apache.tomcat/tomcat-catalina ) and put it in the 'lib' folder inside Tomcat installation folders. I actually used 7.0.42 Hope it helps!

The -B switch to make, whose long form is --always-make, tells make to disregard timestamps and make the specified targets. This may defeat the purpose of using make, but it may be what you need.

What you're asking is why this:

def func(a=[], b = 2):
    pass

isn't internally equivalent to this:

def func(a=None, b = None):
    a_default = lambda: []
    b_default = lambda: 2
    def actual_func(a=None, b=None):
        if a is None: a = a_default()
        if b is None: b = b_default()
    return actual_func
func = func()

except for the case of explicitly calling func(None, None), which we'll ignore.

In other words, instead of evaluating default parameters, why not store each of them, and evaluate them when the function is called?

One answer is probably right there--it would effectively turn every function with default parameters into a closure. Even if it's all hidden away in the interpreter and not a full-blown closure, the data's got to be stored somewhere. It'd be slower and use more memory.

I am sorry for this super long answer, but, you have a little way to go to get where you want. I will say that normally you wouldn't put the storage for the database in the same container as the database itself, you would either mount a host volume so that the data persists on the docker host, or, perhaps a container could be used to hold the data (/var/lib/mysql). Also, I am new to mysql, so, this might not be super efficient. That said...

I think there may be a few issues here. The Dockerfile is used to create an image. You need to execute the build step. At a minimum, from the directory that contains the Dockerfile you would do something like :

docker build .

The Dockerfile describes the image to create. I don't know much about mysql (I am a postgres fanboy), but, I did a search around the interwebs for 'how do i initialize a mysql docker container'. First I created a new directory to work in, I called it mdir, then I created a files directory which I deposited a epcis_schema.sql file which creates a database and a single table:

create database test;
use test;

CREATE TABLE testtab
(
id INTEGER AUTO_INCREMENT,
name TEXT,
PRIMARY KEY (id)
) COMMENT='this is my test table';

Then I created a script called init_db in the files directory:

#!/bin/bash

# Initialize MySQL database.
# ADD this file into the container via Dockerfile.
# Assuming you specify a VOLUME ["/var/lib/mysql"] or `-v /var/lib/mysql` on the `docker run` command…
# Once built, do e.g. `docker run your_image /path/to/docker-mysql-initialize.sh`
# Again, make sure MySQL is persisting data outside the container for this to have any effect.

set -e
set -x

mysql_install_db

# Start the MySQL daemon in the background.
/usr/sbin/mysqld &
mysql_pid=$!

until mysqladmin ping >/dev/null 2>&1; do
  echo -n "."; sleep 0.2
done

# Permit root login without password from outside container.
mysql -e "GRANT ALL ON *.* TO root@'%' IDENTIFIED BY '' WITH GRANT OPTION"

# create the default database from the ADDed file.
mysql < /tmp/epcis_schema.sql

# Tell the MySQL daemon to shutdown.
mysqladmin shutdown

# Wait for the MySQL daemon to exit.
wait $mysql_pid

# create a tar file with the database as it currently exists
tar czvf default_mysql.tar.gz /var/lib/mysql

# the tarfile contains the initialized state of the database.
# when the container is started, if the database is empty (/var/lib/mysql)
# then it is unpacked from default_mysql.tar.gz from
# the ENTRYPOINT /tmp/run_db script

(most of this script was lifted from here: https://gist.github.com/pda/9697520)

Here is the files/run_db script I created:

# start db

set -e
set -x

# first, if the /var/lib/mysql directory is empty, unpack it from our predefined db
[ "$(ls -A /var/lib/mysql)" ] && echo "Running with existing database in /var/lib/mysql" || ( echo 'Populate initial db'; tar xpzvf default_mysql.tar.gz )

/usr/sbin/mysqld

Finally, the Dockerfile to bind them all:

FROM mysql
MAINTAINER  (me) <email>

# Copy the database schema to the /data directory
ADD files/run_db files/init_db files/epcis_schema.sql /tmp/

# init_db will create the default
# database from epcis_schema.sql, then
# stop mysqld, and finally copy the /var/lib/mysql directory
# to default_mysql_db.tar.gz
RUN /tmp/init_db

# run_db starts mysqld, but first it checks
# to see if the /var/lib/mysql directory is empty, if
# it is it is seeded with default_mysql_db.tar.gz before
# the mysql is fired up

ENTRYPOINT "/tmp/run_db"

So, I cd'ed to my mdir directory (which has the Dockerfile along with the files directory). I then run the command:

docker build --no-cache .

You should see output like this:

Sending build context to Docker daemon 7.168 kB
Sending build context to Docker daemon 
Step 0 : FROM mysql
 ---> 461d07d927e6
Step 1 : MAINTAINER (me) <email>
 ---> Running in 963e8de55299
 ---> 2fd67c825c34
Removing intermediate container 963e8de55299
Step 2 : ADD files/run_db files/init_db files/epcis_schema.sql /tmp/
 ---> 81871189374b
Removing intermediate container 3221afd8695a
Step 3 : RUN /tmp/init_db
 ---> Running in 8dbdf74b2a79
+ mysql_install_db
2015-03-19 16:40:39 12 [Note] InnoDB: Using atomics to ref count buffer pool pages
...
/var/lib/mysql/ib_logfile0
 ---> 885ec2f1a7d5
Removing intermediate container 8dbdf74b2a79
Step 4 : ENTRYPOINT "/tmp/run_db"
 ---> Running in 717ed52ba665
 ---> 7f6d5215fe8d
Removing intermediate container 717ed52ba665
Successfully built 7f6d5215fe8d

You now have an image '7f6d5215fe8d'. I could run this image:

docker run -d 7f6d5215fe8d

and the image starts, I see an instance string:

4b377ac7397ff5880bc9218abe6d7eadd49505d50efb5063d6fab796ee157bd3

I could then 'stop' it, and restart it.

docker stop 4b377
docker start 4b377

If you look at the logs, the first line will contain:

docker logs 4b377

Populate initial db
var/lib/mysql/
...

Then, at the end of the logs:

Running with existing database in /var/lib/mysql

These are the messages from the /tmp/run_db script, the first one indicates that the database was unpacked from the saved (initial) version, the second one indicates that the database was already there, so the existing copy was used.

Here is a ls -lR of the directory structure I describe above. Note that the init_db and run_db are scripts with the execute bit set:

gregs-air:~ gfausak$ ls -Rl mdir
total 8
-rw-r--r--  1 gfausak  wheel  534 Mar 19 11:13 Dockerfile
drwxr-xr-x  5 gfausak  staff  170 Mar 19 11:24 files

mdir/files:
total 24
-rw-r--r--  1 gfausak  staff   126 Mar 19 11:14 epcis_schema.sql
-rwxr-xr-x  1 gfausak  staff  1226 Mar 19 11:16 init_db
-rwxr-xr-x  1 gfausak  staff   284 Mar 19 11:23 run_db

The simplest solution I've come up with is pretty straightforward.

It works by finding the point in the rectangle closest to the circle, then comparing the distance.

You can do all of this with a few operations, and even avoid the sqrt function.

public boolean intersects(float cx, float cy, float radius, float left, float top, float right, float bottom)
{
   float closestX = (cx < left ? left : (cx > right ? right : cx));
   float closestY = (cy < top ? top : (cy > bottom ? bottom : cy));
   float dx = closestX - cx;
   float dy = closestY - cy;

   return ( dx * dx + dy * dy ) <= radius * radius;
}

And that's it! The above solution assumes an origin in the upper left of the world with the x-axis pointing down.

If you want a solution to handling collisions between a moving circle and rectangle, it's far more complicated and covered in another answer of mine.

Apache, as usual, has a good answer from Apache Commons-Lang in the form of NumberUtils.isCreatable(String).

Handles nulls, no try/catch block required.

Well if you want to use java.util.Date only, here is a small trick you can use:

String dateString = Long.toString(Date.UTC(date.getYear(), date.getMonth(), date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds()));

You'll have to style your printout with @media print {} in the CSS but the simple code is:

export default class Component extends Component {

    print(){
        window.print();
    }


  render() {

  ...
  <span className="print"
              onClick={this.print}>
    PRINT
    </span>

  } 
}

Hope that's helpful!

If, like me, you were expecting a list of usage differences between Underscore.js and Lodash, there's a guide for migrating from Underscore.js to Lodash.

Here's the current state of it for posterity:

• Underscore _.any is Lodash _.some
• Underscore _.all is Lodash _.every
• Underscore _.compose is Lodash _.flowRight
• Underscore _.contains is Lodash _.includes
• Underscore _.each doesn’t allow exiting by returning false
• Underscore _.findWhere is Lodash _.find
• Underscore _.flatten is deep by default while Lodash is shallow
• Underscore _.groupBy supports an iteratee that is passed the parameters (value, index, originalArray), while in Lodash, the iteratee for _.groupBy is only passed a single parameter: (value).
• Underscore.js _.indexOf with third parameter undefined is Lodash _.indexOf
• Underscore.js _.indexOf with third parameter true is Lodash _.sortedIndexOf
• Underscore _.indexBy is Lodash _.keyBy
• Underscore _.invoke is Lodash _.invokeMap
• Underscore _.mapObject is Lodash _.mapValues
• Underscore _.max combines Lodash _.max & _.maxBy
• Underscore _.min combines Lodash _.min & _.minBy
• Underscore _.sample combines Lodash _.sample & _.sampleSize
• Underscore _.object combines Lodash _.fromPairs and _.zipObject
• Underscore _.omit by a predicate is Lodash _.omitBy
• Underscore _.pairs is Lodash _.toPairs
• Underscore _.pick by a predicate is Lodash _.pickBy
• Underscore _.pluck is Lodash _.map
• Underscore _.sortedIndex combines Lodash _.sortedIndex & _.sortedIndexOf
• Underscore _.uniq by an iteratee is Lodash _.uniqBy
• Underscore _.where is Lodash _.filter
• Underscore _.isFinite doesn’t align with Number.isFinite
  (e.g. _.isFinite('1') returns true in Underscore.js, but false in Lodash)
• Underscore _.matches shorthand doesn’t support deep comparisons
  (e.g., _.filter(objects, { 'a': { 'b': 'c' } }))
• Underscore = 1.7 & Lodash _.template syntax is
  _.template(string, option)(data)
• Lodash _.memoize caches are Map like objects
• Lodash doesn’t support a context argument for many methods in favor of _.bind
• Lodash supports implicit chaining, lazy chaining, & shortcut fusion
• Lodash split its overloaded _.head, _.last, _.rest, & _.initial out into
  _.take, _.takeRight, _.drop, & _.dropRight
  (i.e. _.head(array, 2) in Underscore.js is _.take(array, 2) in Lodash)

The correct answer to this has already been given: no, you can't give the name of an enum, only it's value.

Nevertheless, just for fun, this will give you an enum and a lookup-table all in one and give you a means of printing it by name:

main.c:

#include "Enum.h"

CreateEnum(
        EnumerationName,
        ENUMValue1,
        ENUMValue2,
        ENUMValue3);

int main(void)
{
    int i;
    EnumerationName EnumInstance = ENUMValue1;

    /* Prints "ENUMValue1" */
    PrintEnumValue(EnumerationName, EnumInstance);

    /* Prints:
     * ENUMValue1
     * ENUMValue2
     * ENUMValue3
     */
    for (i=0;i<3;i++)
    {
        PrintEnumValue(EnumerationName, i);
    }
    return 0;
}

Enum.h:

#include <stdio.h>
#include <string.h>

#ifdef NDEBUG
#define CreateEnum(name,...) \
    typedef enum \
    { \
        __VA_ARGS__ \
    } name;
#define PrintEnumValue(name,value)
#else
#define CreateEnum(name,...) \
    typedef enum \
    { \
        __VA_ARGS__ \
    } name; \
    const char Lookup##name[] = \
        #__VA_ARGS__;
#define PrintEnumValue(name, value) print_enum_value(Lookup##name, value)
void print_enum_value(const char *lookup, int value);
#endif

Enum.c

#include "Enum.h"

#ifndef NDEBUG
void print_enum_value(const char *lookup, int value)
{
    char *lookup_copy;
    int lookup_length;
    char *pch;

    lookup_length = strlen(lookup);
    lookup_copy = malloc((1+lookup_length)*sizeof(char));
    strcpy(lookup_copy, lookup);

    pch = strtok(lookup_copy," ,");
    while (pch != NULL)
    {
        if (value == 0)
        {
            printf("%s\n",pch);
            break;
        }
        else
        {
            pch = strtok(NULL, " ,.-");
            value--;
        }
    }

    free(lookup_copy);
}
#endif

Disclaimer: don't do this.

In a single inheritance case (when you subclass one class only), your new class inherits methods of the base class. This includes __init__. So if you don't define it in your class, you will get the one from the base.

Things start being complicated if you introduce multiple inheritance (subclassing more than one class at a time). This is because if more than one base class has __init__, your class will inherit the first one only.

In such cases, you should really use super if you can, I'll explain why. But not always you can. The problem is that all your base classes must also use it (and their base classes as well -- the whole tree).

If that is the case, then this will also work correctly (in Python 3 but you could rework it into Python 2 -- it also has super):

class A:
    def __init__(self):
        print('A')
        super().__init__()

class B:
    def __init__(self):
        print('B')
        super().__init__()

class C(A, B):
    pass

C()
#prints:
#A
#B

Notice how both base classes use super even though they don't have their own base classes.

What super does is: it calls the method from the next class in MRO (method resolution order). The MRO for C is: (C, A, B, object). You can print C.__mro__ to see it.

So, C inherits __init__ from A and super in A.__init__ calls B.__init__ (B follows A in MRO).

So by doing nothing in C, you end up calling both, which is what you want.

Now if you were not using super, you would end up inheriting A.__init__ (as before) but this time there's nothing that would call B.__init__ for you.

class A:
    def __init__(self):
        print('A')

class B:
    def __init__(self):
        print('B')

class C(A, B):
    pass

C()
#prints:
#A

To fix that you have to define C.__init__:

class C(A, B):
    def __init__(self):
        A.__init__(self)
        B.__init__(self)

The problem with that is that in more complicated MI trees, __init__ methods of some classes may end up being called more than once whereas super/MRO guarantee that they're called just once.

Short answer: No practical, performance, or storage, difference.

Long answer:

There is essentially no difference (in MySQL) between VARCHAR(3000) (or any other large limit) and TEXT. The former will truncate at 3000 characters; the latter will truncate at 65535 bytes. (I make a distinction between bytes and characters because a character can take multiple bytes.)

For smaller limits in VARCHAR, there are some advantages over TEXT.

• "smaller" means 191, 255, 512, 767, or 3072, etc, depending on version, context, and CHARACTER SET.
• INDEXes are limited in how big a column can be indexed. (767 or 3072 bytes; this is version and settings dependent)
• Intermediate tables created by complex SELECTs are handled in two different ways -- MEMORY (faster) or MyISAM (slower). When 'large' columns are involved, the slower technique is automatically picked. (Significant changes coming in version 8.0; so this bullet item is subject to change.)
• Related to the previous item, all TEXT datatypes (as opposed to VARCHAR) jump straight to MyISAM. That is, TINYTEXT is automatically worse for generated temp tables than the equivalent VARCHAR. (But this takes the discussion in a third direction!)
• VARBINARY is like VARCHAR; BLOB is like TEXT.

Rebuttal to other answers

The original question asked one thing (which datatype to use); the accepted answer answered something else (off-record storage). That answer is now out of date.

When this thread was started and answered, there were only two "row formats" in InnoDB. Soon afterwards, two more formats (DYNAMIC and COMPRESSED) were introduced.

The storage location for TEXT and VARCHAR() is based on size, not on name of datatype. For an updated discussion of on/off-record storage of large text/blob columns, see this .

Use SELECT COUNT(*) FROM t WHERE a = current_a AND c = 'const' ) as d.

Using reduce, you can do this in one Array.prototype function. This will fetch all even numbers from an array.

var arr = [1,2,3,4,5,6,7,8];_x000D_
_x000D_
var brr = arr.reduce((c, n) => {_x000D_
  if (n % 2 !== 0) {_x000D_
    return c;_x000D_
  }_x000D_
  c.push(n);_x000D_
  return c;_x000D_
}, []);_x000D_
_x000D_
document.getElementById('mypre').innerHTML = brr.toString();

<h1>Get all even numbers</h1>_x000D_
<pre id="mypre"> </pre>

You can use the same method and generalize it for your objects, like this.

var arr = options.reduce(function(c,n){
  if(somecondition) {return c;}
  c.push(n);
  return c;
}, []);

arr will now contain the filtered objects.

This error occurs when one attempts to use a varchar variable longer than 4000 bytes in an SQL statement. PL/SQL allows varchars up to 32767 bytes, but the limit for database tables and SQL language is 4000. You can't use PL/SQL variables that SQL doesn't recognize in SQL statements; an exception, as the message explains, is a direct insert into a long-type column.

create table test (v varchar2(10), c clob);


declare
  shortStr varchar2(10) := '0123456789';
  longStr1 varchar2(10000) := shortStr;
  longStr2 varchar2(10000);
begin
  for i in 1 .. 10000
  loop
    longStr2 := longStr2 || 'X';
  end loop;

  -- The following results in ORA-01461
  insert into test(v, c) values(longStr2, longStr2);

  -- This is OK; the actual length matters, not the declared one
  insert into test(v, c) values(longStr1, longStr1);

  -- This works, too (a direct insert into a clob column)
  insert into test(v, c) values(shortStr, longStr2);

  -- ORA-01461 again: You can't use longStr2 in an SQL function!
  insert into test(v, c) values(shortStr, substr(longStr2, 1, 4000));
end;

Muppy is (yet another) Memory Usage Profiler for Python. The focus of this toolset is laid on the identification of memory leaks.

Muppy tries to help developers to identity memory leaks of Python applications. It enables the tracking of memory usage during runtime and the identification of objects which are leaking. Additionally, tools are provided which allow to locate the source of not released objects.

You can't directly instantiate an abstract class, but you can create an anonymous class when there is no concrete class:

public class AbstractTest {
    public static void main(final String... args) {
        final Printer p = new Printer() {
            void printSomethingOther() {
                System.out.println("other");
            }
            @Override
            public void print() {
                super.print();
                System.out.println("world");
                printSomethingOther(); // works fine
            }
        };
        p.print();
        //p.printSomethingOther(); // does not work
    }
}

abstract class Printer {
    public void print() {
        System.out.println("hello");
    }
}

This works with interfaces, too.

The format you need is:

'2007-01-01 10:00:00'

i.e. yyyy-MM-dd HH:mm:ss

If possible, however, use a parameterised query as this frees you from worrying about the formatting details.

As a supplement to whatever ideas you come up with, I say you should just show them how to do some basic math. Present it as

"now you might think this is easy or complicated... but have you ever been stuck on your math homework?"

Then just pull out an example from someone's book. Most math problems can be solved in 10 lines as it will likely be a simple problem. Then show them how spending 10 minutes to figure it out might be worth the A they might get. It's a long stretch, but you might catch a few who want to spend little to no time doing homework.

This mostly stems from me having wished I had thought of writing a software program back in chemistry... all those quizzes and homeworks would have been 100s...

Edit: To respond to Peter's comment:

Say something like what is the derivative of 3a². So you could just show a simple function that they can call from the command line:

public int SimpleDerivative(int r, int exponent){
    r = r * exponent
    exponent =- 1
    return (String "{0}a^{1}" where {0} = r, {1} = exponent)
}

There is no need complicating the stuff. After the -m "text... the next line is gotten by pressing Enter. When Enter is pressed > appears. When you are done, just put " and press Enter:

$ git commit -m "Another way of demonstrating multicommit messages:
>
> This is a new line written
> This is another new line written
> This one is really awesome too and we can continue doing so till ..."

$ git log -1
commit 5474e383f2eda610be6211d8697ed1503400ee42 (HEAD -> test2)
Author: ************** <*********@gmail.com>
Date:   Mon Oct 9 13:30:26 2017 +0200

Another way of demonstrating multicommit messages:

This is a new line written
This is another new line written
This one is really awesome too and we can continue doing so till ...

I've tried different solutions. First was:

a_df=np.unique(df[['col1','col2']], axis=0)

and it works well for not object data Another way to do this and to avoid error (for object columns type) is to apply drop_duplicates()

a_df=df.drop_duplicates(['col1','col2'])[['col1','col2']]

You can also use SQL to do this, but it worked very slow in my case:

from pandasql import sqldf
q="""SELECT DISTINCT col1, col2 FROM df;"""
pysqldf = lambda q: sqldf(q, globals())
a_df = pysqldf(q)

This is for shorthand syntax

=placeholder
  &::-webkit-input-placeholder
    @content
  &:-moz-placeholder
    @content
  &::-moz-placeholder
    @content
  &:-ms-input-placeholder
    @content

use it like

input
  +placeholder
    color: red

its very simple use this css (replace image.jpg with your background image)

body{height:100%;
   width:100%;
   background-image:url(image.jpg);/*your background image*/  
   background-repeat:no-repeat;/*we want to have one single image not a repeated one*/  
   background-size:cover;/*this sets the image to fullscreen covering the whole screen*/  
   /*css hack for ie*/     
   filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='.image.jpg',sizingMethod='scale');
   -ms-filter:"progid:DXImageTransform.Microsoft.AlphaImageLoader(src='image.jpg',sizingMethod='scale')";
}

Import the spring util namespace. Then you can define a list bean as follows:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans
                    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                    http://www.springframework.org/schema/util
                    http://www.springframework.org/schema/util/spring-util-2.5.xsd">


<util:list id="myList" value-type="java.lang.String">
    <value>foo</value>
    <value>bar</value>
</util:list>

The value-type is the generics type to be used, and is optional. You can also specify the list implementation class using the attribute list-class.

I have been trying to do this for a while also. Here is what I do now. Highlight the email you want to create as a file. Click on Create. Hover over Special, then click on Link message. This will open up a new tab for the link. At the bottom of the message is a small yellow piece of paper icon. Copy this icon and paste into your message like you would any other file. It is tiny, so I put a statement like "see email attachment ---->" in front of the icon. You might like this way. Not sure though.

Microsoft has a nice chart control. Download it here. Great video on this here. Example code is here. Happy coding!

Quite an intuitive error message - just need to give the columns in d names

Change to either this

d as 
 (
  select                 
     [duration] = month(clothdeliverydate),                 
     [bkdqty] = SUM(CONVERT(INT, deliveredqty))             
  FROM                 
     barcodetable            
  where                 
     month(clothdeliverydate) is not null                
  group by month(clothdeliverydate)           
 ) 

Or you can explicitly declare the fields in the definition of the cte:

d ([duration], [bkdqty]) as 
 (
  select                 
     month(clothdeliverydate),                 
     SUM(CONVERT(INT, deliveredqty))             
  FROM                 
     barcodetable            
  where                 
     month(clothdeliverydate) is not null                
  group by month(clothdeliverydate)           
 ) 

I have experienced the same issue before. In my case, I needed to install php-mbstring extension on GoDaddy VPS server. None of above solutions did work for me.

What I've found is to install PHP extensions using WHM (Web Hosting Manager) of GoDaddy. Anyone who use GoDaddy VPS server can access this page with the following address.

http://{Your_Server_IP_Address}:2087

On this page, you can easily find Easy Apache software that can help you to install/upgrade php components and extensions. You can select currently installed profile and customize and then provision the profile. Everything with Easy Apache is explanatory.

I remember that I did very similar things for HostGator server, but I don't remember how actually I did for profile update.

Edit: When you have got the server which supports Web Hosting Manager, then you can add/update/remove php extensions on WHM. On godaddy servers, it's even recommended to update PHP ini settings on WHM.

This answer goes over the exact same thing (although for angular) -- it is a CORS issue.

One quick fix is to modify each POST request by specifying one of the 'Content-Type' header values which will not trigger a "preflight". These types are:

• application/x-www-form-urlencoded
• multipart/form-data
• text/plain

ANYTHING ELSE triggers a preflight.

For example:

$.ajax({
   url: 'http://api.example.com/users/get',
   type: 'POST',
   headers: {
      'name-api-key':'ewf45r4435trge',
      'Content-Type':'application/x-www-form-urlencoded'
   },
   data: {
      'uid':36,
   },
   success: function(data) {
      console.log(data);
   }
});

There is a KeyValuePair built-in type. As a matter of fact, this is what the IDictionary is giving you access to when you iterate in it.

Also, this structure is hardly a tree, finding a more representative name might be a good exercise.

This is an old thread, but for reference it's important to note that disabling an input element's outline is not recommended as it hinders accessibility.

The outline property is there for a reason - providing users with a clear indication of keyboard focus. For further reading and additional sources about this subject see http://outlinenone.com/

how about this:

df = DataFrame({"pear": [1,2,3], "apple": [2,3,4], "orange": [3,4,5]})
out = np.argwhere(df.columns.isin(['apple', 'orange'])).ravel()
print(out)
[1 2]

try:

$("td[id^=" + value + "]")

Maybe something like this:

First some test data:

DECLARE @tbl TABLE(Column1 VARCHAR(100))

INSERT INTO @tbl
SELECT '1/1' UNION ALL
SELECT '1/20' UNION ALL
SELECT '1/2'

Then like this:

SELECT
    SUBSTRING(tbl.Column1,CHARINDEX('/',tbl.Column1)+1,LEN(tbl.Column1))
FROM
    @tbl AS tbl

You can also try with ng build. I've just rebuilt the app and now it's not complying.

DISCLAIMER: I strongly suggest reading @BalusC's answer. After reading the following caching tutorial: http://www.mnot.net/cache_docs/ (I recommend you read it, too), I believe it to be correct. However, for historical reasons (and because I have tested it myself), I will include my original answer below:

I tried the 'accepted' answer for PHP, which did not work for me. Then I did a little research, found a slight variant, tested it, and it worked. Here it is:

header('Cache-Control: no-store, private, no-cache, must-revalidate');     // HTTP/1.1
header('Cache-Control: pre-check=0, post-check=0, max-age=0, max-stale = 0', false);  // HTTP/1.1
header('Pragma: public');
header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');                  // Date in the past  
header('Expires: 0', false); 
header('Last-Modified: '.gmdate('D, d M Y H:i:s') . ' GMT');
header ('Pragma: no-cache');

That should work. The problem was that when setting the same part of the header twice, if the false is not sent as the second argument to the header function, header function will simply overwrite the previous header() call. So, when setting the Cache-Control, for example if one does not want to put all the arguments in one header() function call, he must do something like this:

header('Cache-Control: this');
header('Cache-Control: and, this', false);

See more complete documentation here.

Indeed, if you perform some complex calculations inside the loop, then the performance of the array indexer versus the list indexer may be so marginally small, that eventually, it doesn't matter.

Might be it will help someone, 4 level and 2 child's on each level

Library.Include(a => a.Library.Select(b => b.Library.Select(c => c.Library)))
            .Include(d=>d.Book.)
            .Include(g => g.Library.Select(h=>g.Book))
            .Include(j => j.Library.Select(k => k.Library.Select(l=>l.Book)))

1. Close IntelliJ
2. Open the same project
3. When the project loads, at the lower right you can see a pop up saying non-managed pom.xml file found, if you click on it a new pop up will come, saying add as maven project, click on it, and done.

to increment by one you can do something like

  var newValue = currentValue ++;

Code:

while True:
        n += 1
        try:
          DATA[n]['message']['text']
        except:
          key = DATA[n-1]['message']['text']
          break

Console :

Traceback (most recent call last):
  File "botnet.py", line 82, in <module>
    key =DATA[n-1]['message']['text']
IndexError: list index out of range

As from the answer from BrianC use the YQL console. But after selecting the "Show Community Tables" go to the bottom of the tables list and expand yahoo where you find plenty of yahoo.finance tables:

Stock Quotes:

• yahoo.finance.quotes
• yahoo.finance.historicaldata

Fundamental analysis:

• yahoo.finance.keystats
• yahoo.finance.balancesheet
• yahoo.finance.incomestatement
• yahoo.finance.analystestimates
• yahoo.finance.dividendhistory

Technical analysis:

• yahoo.finance.historicaldata
• yahoo.finance.quotes
• yahoo.finance.quant
• yahoo.finance.option*

General financial information:

• yahoo.finance.industry
• yahoo.finance.sectors
• yahoo.finance.isin
• yahoo.finance.quoteslist
• yahoo.finance.xchange

2/Nov/2017: Yahoo finance has apparently killed this API, for more info and alternative resources see https://news.ycombinator.com/item?id=15616880

The @Transactional annotation takes a timeout parameter where you can specify timeout in seconds for a specific method in the @RestController

@RequestMapping(value = "/method",
    method = RequestMethod.POST,
    produces = MediaType.APPLICATION_JSON_VALUE)
@Timed
@Transactional(timeout = 120)

I've used the following methods to debug my script.

set -e makes the script stop immediately if any external program returns a non-zero exit status. This is useful if your script attempts to handle all error cases and where a failure to do so should be trapped.

set -x was mentioned above and is certainly the most useful of all the debugging methods.

set -n might also be useful if you want to check your script for syntax errors.

strace is also useful to see what's going on. Especially useful if you haven't written the script yourself.

<context:component-scan base-package="package name" />:

This is used to tell the container that there are bean classes in my package scan those bean classes. In order to scan bean classes by container on top of the bean we have to write one of the stereo type annotation like following.

@Component, @Service, @Repository, @Controller

<context:annotation-config />:

If we don't want to write bean tag explicitly in XML then how the container knows if there is a auto wiring in the bean. This is possible by using @Autowired annotation. we have to inform to the container that there is auto wiring in my bean by context:annotation-config.

Late answer, but you can take advantage of the fact that you can deserialize multiple objects from one JSON string, as long as the objects don't share any common property names,

    public async Task<HttpResponseMessage> Post(HttpRequestMessage request)
    {
        var jsonString = await request.Content.ReadAsStringAsync();
        var content  = JsonConvert.DeserializeObject<Content >(jsonString);
        var config  = JsonConvert.DeserializeObject<Config>(jsonString);
    }

The superclass “javax.servlet.http.HttpServlet” was not found on the Java Build Path

Error: "Can not find the tag library descriptor for "http://java.sun.com/jsp/jstl/core"

Solution: Adding the tomcat server in the server runtime will do the job : Project Properties-> Java Build Path-> Add Library -> Select "Server Runtime" from the list-> Next->Select "Apache Tomcat"-> Finish

This solution work for me.

Another very simple way to estimate the sharpness of an image is to use a Laplace (or LoG) filter and simply pick the maximum value. Using a robust measure like a 99.9% quantile is probably better if you expect noise (i.e. picking the Nth-highest contrast instead of the highest contrast.) If you expect varying image brightness, you should also include a preprocessing step to normalize image brightness/contrast (e.g. histogram equalization).

I've implemented Simon's suggestion and this one in Mathematica, and tried it on a few test images:

The first test blurs the test images using a Gaussian filter with a varying kernel size, then calculates the FFT of the blurred image and takes the average of the 90% highest frequencies:

testFft[img_] := Table[
  (
   blurred = GaussianFilter[img, r];
   fft = Fourier[ImageData[blurred]];
   {w, h} = Dimensions[fft];
   windowSize = Round[w/2.1];
   Mean[Flatten[(Abs[
       fft[[w/2 - windowSize ;; w/2 + windowSize, 
         h/2 - windowSize ;; h/2 + windowSize]]])]]
   ), {r, 0, 10, 0.5}]

Result in a logarithmic plot:

The 5 lines represent the 5 test images, the X axis represents the Gaussian filter radius. The graphs are decreasing, so the FFT is a good measure for sharpness.

This is the code for the "highest LoG" blurriness estimator: It simply applies an LoG filter and returns the brightest pixel in the filter result:

testLaplacian[img_] := Table[
  (
   blurred = GaussianFilter[img, r];
   Max[Flatten[ImageData[LaplacianGaussianFilter[blurred, 1]]]];
   ), {r, 0, 10, 0.5}]

Result in a logarithmic plot:

The spread for the un-blurred images is a little better here (2.5 vs 3.3), mainly because this method only uses the strongest contrast in the image, while the FFT is essentially a mean over the whole image. The functions are also decreasing faster, so it might be easier to set a "blurry" threshold.

I'm using this in Python to get a single file:

df.toPandas().to_csv("/tmp/my.csv", sep=',', header=True, index=False)

I have solved this by using the Preference class.

package com.example.android;

import android.content.Context;
import android.preference.Preference;
import android.util.AttributeSet;

public class VersionPreference extends Preference {
    public VersionPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        String versionName;
        final PackageManager packageManager = context.getPackageManager();
        if (packageManager != null) {
            try {
                PackageInfo packageInfo = packageManager.getPackageInfo(context.getPackageName(), 0);
                versionName = packageInfo.versionName;
            } catch (PackageManager.NameNotFoundException e) {
                versionName = null;
            }
            setSummary(versionName);
        }
    }
}

Another solution:

<input type="button" value="Print" onclick="document.getElementById('PDFtoPrint').focus(); document.getElementById('PDFtoPrint').contentWindow.print();">

• firewall of the server must be set-up to enable incomming connections on port 3306
• you must have a user in MySQL who is allowed to connect from % (any host) (see manual for details)

The current problem is the first one, but right after you resolve it you will likely get the second one.

Tip: generate error.

declare @Day int, @Config_Node varchar(50)

    set @Config_Node = 'value to trace'

    set @Day = @Config_Node

You will get this message:

Conversion failed when converting the varchar value 'value to trace' to data type int.

Call second ajax from 'complete'

Here is the example

   var dt='';
   $.ajax({
    type: "post",
    url: "ajax/example.php",
    data: 'page='+btn_page,
    success: function(data){
        dt=data;
        /*Do something*/
    },
    complete:function(){
        $.ajax({
           var a=dt; // This line shows error.
           type: "post",
           url: "example.php",
           data: 'page='+a,
           success: function(data){
              /*do some thing in second function*/
           },
       });
    }
});

One small point: these are not operators. Operators are used in expressions to create new values from existing values (1+2 becomes 3, for example. The * and ** here are part of the syntax of function declarations and calls.

If I understand the question correctly, he needs to perform a REST GET action, but wonders if it's OK to send in data via HTTP POST method.

As Scott had nicely laid out in his answer earlier, there are many good reasons to POST input data. IMHO it should be done this way, if quality of solution is the top priority.

A while back we created an REST API to authenticate users, taking username/password and returning an access token. The API is encrypted under TLS, but exposed to public internet. After evaluating different options, we chose HTTP POST for the REST method of "GET access token," because that's the only way to meet security standards.

Try dir /b, for bare format.

dir /? will show you documentation of what you can do with the dir command. Here is the output from my Windows 7 machine:

C:\>dir /?
Displays a list of files and subdirectories in a directory.

DIR [drive:][path][filename] [/A[[:]attributes]] [/B] [/C] [/D] [/L] [/N]
  [/O[[:]sortorder]] [/P] [/Q] [/R] [/S] [/T[[:]timefield]] [/W] [/X] [/4]

  [drive:][path][filename]
              Specifies drive, directory, and/or files to list.

  /A          Displays files with specified attributes.
  attributes   D  Directories                R  Read-only files
               H  Hidden files               A  Files ready for archiving
               S  System files               I  Not content indexed files
               L  Reparse Points             -  Prefix meaning not
  /B          Uses bare format (no heading information or summary).
  /C          Display the thousand separator in file sizes.  This is the
              default.  Use /-C to disable display of separator.
  /D          Same as wide but files are list sorted by column.
  /L          Uses lowercase.
  /N          New long list format where filenames are on the far right.
  /O          List by files in sorted order.
  sortorder    N  By name (alphabetic)       S  By size (smallest first)
               E  By extension (alphabetic)  D  By date/time (oldest first)
               G  Group directories first    -  Prefix to reverse order
  /P          Pauses after each screenful of information.
  /Q          Display the owner of the file.
  /R          Display alternate data streams of the file.
  /S          Displays files in specified directory and all subdirectories.
  /T          Controls which time field displayed or used for sorting
  timefield   C  Creation
              A  Last Access
              W  Last Written
  /W          Uses wide list format.
  /X          This displays the short names generated for non-8dot3 file
              names.  The format is that of /N with the short name inserted
              before the long name. If no short name is present, blanks are
              displayed in its place.
  /4          Displays four-digit years

Switches may be preset in the DIRCMD environment variable.  Override
preset switches by prefixing any switch with - (hyphen)--for example, /-W.

SimpleDateFormat will not work if he is starting with LocalDate which is new in Java 8. From what I can see, you will have to use DateTimeFormatter, http://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html.

LocalDate localDate = LocalDate.now();//For reference
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd LLLL yyyy");
String formattedString = localDate.format(formatter);

That should print 05 May 1988. To get the period after the day and before the month, you might have to use "dd'.LLLL yyyy"

You can use os.stat(path) call

http://docs.python.org/library/os.html#os.stat

If you would like to insert multiple values lets say from multiple inputs that have different post values but the same table to insert into then simply use:

mysql_query("INSERT INTO `table` (a,b,c,d,e,f,g) VALUES 
('$a','$b','$c','$d','$e','$f','$g'),
('$a','$b','$c','$d','$e','$f','$g'),
('$a','$b','$c','$d','$e','$f','$g')")
or die (mysql_error()); // Inserts 3 times in 3 different rows

I edited your plunker to include ABOS's solution.

<body ng-controller="MainCtrl">
    <ul ng-repeat='item in items'>
      <li ng-if='item.color'>The color is {{item.color}}</li>
      <li ng-if='item.shipping !== undefined'>The shipping cost is {{item.shipping}}</li>
    </ul>
  </body>

plunkerFork

There are two reasons you might get this message:

1. ASP.Net is not configured. For this run from Administrator command %FrameworkDir%\%FrameworkVersion%\aspnet_regiis -i. Read the message carefully. On Windows8/IIS8 it may say that this is no longer supported and you may have to use Turn Windows Features On/Off dialog in Install/Uninstall a Program in Control Panel.
2. Another reason this may happen is because your App Pool is not configured correctly. For example, you created website for WordPress and you also want to throw in few aspx files in there, WordPress creates app pool that says don't run CLR stuff. To fix this just open up App Pool and enable CLR.

I found this method to dump object, try this String dump(Object object)

Just like to revisit this almost 10 year old question. In this era of off-the-shelf programming, your best bet is to set your project up using a dependency manager (npm). There is an entire cottage industry of libraries out there that encode query strings and take care of all the edge cases. This is one of the more popular ones -

https://www.npmjs.com/package/query-string

Redux can't return a function instead of an action. It's just a fact. That's why people use Thunk. Read these 14 lines of code to see how it allows the async cycle to work with some added function layering:

function createThunkMiddleware(extraArgument) {
  return ({ dispatch, getState }) => (next) => (action) => {
    if (typeof action === 'function') {
      return action(dispatch, getState, extraArgument);
    }

    return next(action);
  };
}

const thunk = createThunkMiddleware();
thunk.withExtraArgument = createThunkMiddleware;

export default thunk;

https://github.com/reduxjs/redux-thunk

I do the following in Mint 15 through 17, also works on ubuntu server 12.04 and above:

sudo vi /etc/bash.bashrc 

scroll to the bottom, and add:

export LD_LIBRARY_PATH=.

All users have the environment variable added.

I like the Aptana Browser Preview windo for this.

You can get it from their update site: http://download.aptana.org/tools/studio/plugin/update/studio/

After you install the Aptana plugin, open an Aptana project and there should be an option under help to install aptana features. under other you will find a Firefox/XUL browser. There may be a more direct way to install the XUL plugin, but the above procedure works.

Short version: Create styles only once, use them everywhere.

Long version: use a method to create the styles you need (beware of the limit on the amount of styles).

private static Map<String, CellStyle> styles;

private static Map<String, CellStyle> createStyles(Workbook wb){
        Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
        DataFormat df = wb.createDataFormat();

        CellStyle style;
        Font headerFont = wb.createFont();
        headerFont.setBoldweight(Font.BOLDWEIGHT_BOLD);
        headerFont.setFontHeightInPoints((short) 12);
        style = createBorderedStyle(wb);
        style.setAlignment(CellStyle.ALIGN_CENTER);
        style.setFont(headerFont);
        styles.put("style1", style);

        style = createBorderedStyle(wb);
        style.setAlignment(CellStyle.ALIGN_CENTER);
        style.setFillForegroundColor(IndexedColors.LIGHT_CORNFLOWER_BLUE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        style.setFont(headerFont);
        style.setDataFormat(df.getFormat("d-mmm"));
        styles.put("date_style", style);
        ...
        return styles;
    }

you can also use methods to do repetitive tasks while creating styles hashmap

private static CellStyle createBorderedStyle(Workbook wb) {
        CellStyle style = wb.createCellStyle();
        style.setBorderRight(CellStyle.BORDER_THIN);
        style.setRightBorderColor(IndexedColors.BLACK.getIndex());
        style.setBorderBottom(CellStyle.BORDER_THIN);
        style.setBottomBorderColor(IndexedColors.BLACK.getIndex());
        style.setBorderLeft(CellStyle.BORDER_THIN);
        style.setLeftBorderColor(IndexedColors.BLACK.getIndex());
        style.setBorderTop(CellStyle.BORDER_THIN);
        style.setTopBorderColor(IndexedColors.BLACK.getIndex());
        return style;
    }

then, in your "main" code, set the style from the styles map you have.

Cell cell = xssfCurrentRow.createCell( intCellPosition );       
cell.setCellValue( blah );
cell.setCellStyle( (CellStyle) styles.get("style1") );

As MadScientist pointed out, you can export individual variables with:

export MY_VAR = foo  # Available for all targets

Or export variables for a specific target (target-specific variables):

my-target: export MY_VAR_1 = foo
my-target: export MY_VAR_2 = bar
my-target: export MY_VAR_3 = baz

my-target: dependency_1 dependency_2
  echo do something

You can also specify the .EXPORT_ALL_VARIABLES target to—you guessed it!—EXPORT ALL THE THINGS!!!:

.EXPORT_ALL_VARIABLES:

MY_VAR_1 = foo
MY_VAR_2 = bar
MY_VAR_3 = baz

test:
  @echo $$MY_VAR_1 $$MY_VAR_2 $$MY_VAR_3

see .EXPORT_ALL_VARIABLES

db.query('select * from login',(err, results, fields)=>{
    if(err){
        console.log('error in fetching data')
    }
    var string=JSON.stringify(results);
    console.log(string);
    var json =  JSON.parse(string);
   // to get one value here is the option
    console.log(json[0].name);
})

If you haven't push the deletion yet, you can simply do :

$ git checkout deletedBranchName

Well for me the problem got resolved by adding the jars in my APACHE/TOMCAT/lib folder ! .

The pip's proxy parameter is, according to pip --help, in the form scheme://[user:passwd@]proxy.server:port

You should use the following:

pip install --proxy http://user:password@proxyserver:port TwitterApi

Also, the HTTP_PROXY env var should be respected.

Note that in earlier versions (couldn't track down the change in the code, sorry, but the doc was updated here), you had to leave the scheme:// part out for it to work, i.e. pip install --proxy user:password@proxyserver:port

You need to include jQueryUI

$(document).ready(function() {_x000D_
_x000D_
    $('.datepicker').datepicker({_x000D_
        format: 'dd/mm/yyyy'_x000D_
    });_x000D_
});

<script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script>_x000D_
<script   src="https://code.jquery.com/ui/1.11.3/jquery-ui.min.js"   integrity="sha256-xI/qyl9vpwWFOXz7+x/9WkG5j/SVnSw21viy8fWwbeE="   crossorigin="anonymous"></script>_x000D_
<script src="<?php echo BASE_URL; ?>/js/moment.min.js"></script>_x000D_
<script src="<?php echo BASE_URL; ?>/js/bootstrap.min.js"></script>_x000D_
<script src="<?php echo BASE_URL; ?>/js/bootstrap-datetimepicker.min.js"></script>_x000D_
<script src="<?php echo BASE_URL; ?>/js/main.js"></script>_x000D_
_x000D_
<div class="col-md-6">_x000D_
    <div class="form-group">_x000D_
         <label for="geboortedatum">Geboortedatum:</label>_x000D_
         <div class="input-group datepicker" data-provide="datepicker">_x000D_
               <input type="text" name="geboortedatum" id="geboortedatum" class="form-control">_x000D_
               <div class="input-group-addon">_x000D_
                   <span class="glyphicon glyphicon-th"></span>_x000D_
               </div>_x000D_
         </div>_x000D_
    </div>_x000D_
</div>

You are using a forward declaration for the type MainWindowClass. That's fine, but it also means that you can only declare a pointer or reference to that type. Otherwise the compiler has no idea how to allocate the parent object as it doesn't know the size of the forward declared type (or if it actually has a parameterless constructor, etc.)

So, you either want:

// forward declaration, details unknown
class A;

class B {
  A *a;  // pointer to A, ok
};

Or, if you can't use a pointer or reference....

// declaration of A
#include "A.h"

class B {
  A a;  // ok, declaration of A is known
};

At some point, the compiler needs to know the details of A.

If you are only storing a pointer to A then it doesn't need those details when you declare B. It needs them at some point (whenever you actually dereference the pointer to A), which will likely be in the implementation file, where you will need to include the header which contains the declaration of the class A.

// B.h
// header file

// forward declaration, details unknown
class A;

class B {
public: 
    void foo();
private:
  A *a;  // pointer to A, ok
};

// B.cpp
// implementation file

#include "B.h"
#include "A.h"  // declaration of A

B::foo() {
    // here we need to know the declaration of A
    a->whatever();
}

You can also do like this:

template <typename T>
class make_vector {
public:
  typedef make_vector<T> my_type;
  my_type& operator<< (const T& val) {
    data_.push_back(val);
    return *this;
  }
  operator std::vector<T>() const {
    return data_;
  }
private:
  std::vector<T> data_;
};

And use it like this:

std::vector<int> v = make_vector<int>() << 1 << 2 << 3;

the other way to exchange data from php to javascript or vice versa is by using cookies, you can save cookies in php and read by your javascript, for this you don't have to use forms or ajax

Wikibooks has a fairly good summary of jump instructions. Basically, there's actually two stages:

cmp_instruction op1, op2

Which sets various flags based on the result, and

jmp_conditional_instruction address

which will execute the jump based on the results of those flags.

Compare (cmp) will basically compute the subtraction op1-op2, however, this is not stored; instead only flag results are set. So if you did cmp eax, ebx that's the same as saying eax-ebx - then deciding based on whether that is positive, negative or zero which flags to set.

More detailed reference here.

$date = strtotime(date("Y-m-d", strtotime($date)) . " +1 day");

Or, simplier:

date("Y-m-d H:i:s", time()+((60*60)*24));

You're very close. Use same type on both sides, and include ().

ArrayList<Class> myArray = new ArrayList<Class>();

Try:

float number mkm = (((((amountdrug/fluidvol)*1000f)/60f)*infrate)/ptwt)*1000f;
int newNum = (int) mkm;
mkm = newNum/1000f; // Will return 3 decimal places

If a is your array:

In [11]: a[:,:2]
Out[11]: 
array([[-0.57098887, -0.4274751 ],
       [-0.22279713, -0.51723555],
       [ 0.67492385, -0.69294472],
       [ 0.41086611,  0.26374238]])

If you are using postgresql then you have to use column type BOOLEAN in lower case as boolean.

ALTER TABLE users ADD "priv_user" boolean DEFAULT false;

The following algorithm will deal with self-referential data structures, numbers, strings, dates, and of course plain nested javascript objects:

Objects are considered equivalent when

• They are exactly equal per === (String and Number are unwrapped first to ensure 42 is equivalent to Number(42))
• or they are both dates and have the same valueOf()
• or they are both of the same type and not null and...
  • they are not objects and are equal per == (catches numbers/strings/booleans)
  • or, ignoring properties with undefined value they have the same properties all of which are considered recursively equivalent.

Functions are not considered identical by function text. This test is insufficient because functions may have differing closures. Functions are only considered equal if === says so (but you could easily extend that equivalent relation should you choose to do so).

Infinite loops, potentially caused by circular datastructures, are avoided. When areEquivalent attempts to disprove equality and recurses into an object's properties to do so, it keeps track of the objects for which this sub-comparison is needed. If equality can be disproved, then some reachable property path differs between the objects, and then there must be a shortest such reachable path, and that shortest reachable path cannot contain cycles present in both paths; i.e. it is OK to assume equality when recursively comparing objects. The assumption is stored in a property areEquivalent_Eq_91_2_34, which is deleted after use, but if the object graph already contains such a property, behavior is undefined. The use of such a marker property is necessary because javascript doesn't support dictionaries using arbitrary objects as keys.

function unwrapStringOrNumber(obj) {
    return (obj instanceof Number || obj instanceof String 
            ? obj.valueOf() 
            : obj);
}
function areEquivalent(a, b) {
    a = unwrapStringOrNumber(a);
    b = unwrapStringOrNumber(b);
    if (a === b) return true; //e.g. a and b both null
    if (a === null || b === null || typeof (a) !== typeof (b)) return false;
    if (a instanceof Date) 
        return b instanceof Date && a.valueOf() === b.valueOf();
    if (typeof (a) !== "object") 
        return a == b; //for boolean, number, string, xml

    var newA = (a.areEquivalent_Eq_91_2_34 === undefined),
        newB = (b.areEquivalent_Eq_91_2_34 === undefined);
    try {
        if (newA) a.areEquivalent_Eq_91_2_34 = [];
        else if (a.areEquivalent_Eq_91_2_34.some(
            function (other) { return other === b; })) return true;
        if (newB) b.areEquivalent_Eq_91_2_34 = [];
        else if (b.areEquivalent_Eq_91_2_34.some(
            function (other) { return other === a; })) return true;
        a.areEquivalent_Eq_91_2_34.push(b);
        b.areEquivalent_Eq_91_2_34.push(a);

        var tmp = {};
        for (var prop in a) 
            if(prop != "areEquivalent_Eq_91_2_34") 
                tmp[prop] = null;
        for (var prop in b) 
            if (prop != "areEquivalent_Eq_91_2_34") 
                tmp[prop] = null;

        for (var prop in tmp) 
            if (!areEquivalent(a[prop], b[prop]))
                return false;
        return true;
    } finally {
        if (newA) delete a.areEquivalent_Eq_91_2_34;
        if (newB) delete b.areEquivalent_Eq_91_2_34;
    }
}

Using flexbox, this is easy to achieve.

Set the wrapper containing your 3 compartments to display: flex; and give it a height of 100% or 100vh. The height of the wrapper will fill the entire height, and the display: flex; will cause all children of this wrapper which has the appropriate flex-properties (for example flex:1;) to be controlled with the flexbox-magic.

Example markup:

<div class="wrapper">
    <header>I'm a 30px tall header</header>
    <main>I'm the main-content filling the void!</main>
    <footer>I'm a 30px tall footer</footer>
</div>

And CSS to accompany it:

.wrapper {
    height: 100vh;
    display: flex;

    /* Direction of the items, can be row or column */
    flex-direction: column;
}

header,
footer {
    height: 30px;
}

main {
    flex: 1;
}

Here's that code live on Codepen: http://codepen.io/enjikaka/pen/zxdYjX/left

You can see more flexbox-magic here: http://philipwalton.github.io/solved-by-flexbox/

Or find a well made documentation here: http://css-tricks.com/snippets/css/a-guide-to-flexbox/

--[Old answer below]--

Here you go: http://jsfiddle.net/pKvxN/

<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Layout</title>
<!--[if IE]>
  <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<style>
  header {
    height: 30px;
    background: green;
  }
  footer {
    height: 30px;
    background: red;
  }
</style>
</head>
<body>
  <header>
    <h1>I am a header</h1>
  </header>
  <article>
    <p>
      Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce a ligula dolor.
    </p>
  </article>
  <footer>
    <h4>I am a footer</h4>
  </footer>
</body>
</html>

That works on all modern browsers (FF4+, Chrome, Safari, IE8 and IE9+)

you can use this code .may be solve the problem

Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("http://192.168.43.1:6789/mobile_base/test.apk"));
startActivity(intent);

To both style the hover color and avoid the OS default color in Firefox, you need to add a box-shadow to both the select option and select option:hover declarations, setting the color of the box-shadow on "select option" to the menu background color.

select option {
  background: #f00; 
  color: #fff; 
  box-shadow: inset 20px 20px #f00
} 

select option:hover {
  color: #000; 
  box-shadow: inset 20px 20px #00f;
}

The way I think of it is Debug.Assert is a way to establish a contract about how a method is supposed to be called, focusing on specifics about the values of a paramter (instead of just the type). For example, if you are not supposed to send a null in the second parameter you add the Assert around that parameter to tell the consumer not to do that.

It prevents someone from using your code in a boneheaded way. But it also allows that boneheaded way to go through to production and not give the nasty message to a customer (assuming you build a Release build).

You will need separate files for each resolution I am afraid. There is a really good article on campaign monitor describing how they created and implemented their icons for each iOS device too:

http://www.campaignmonitor.com/blog/post/3234/designing-campaign-monitor-ios-icons/

Your submission will cancel the redirect or vice versa.

I do not see the reason for the redirect in the first place since why do you have an order form that does nothing.

That said, here is how to do it. Firstly NEVER put code on the submit button but do it in the onsubmit, secondly return false to stop the submission

NOTE This code will IGNORE the action and ONLY execute the script due to the return false/preventDefault

function redirect() {
  window.location.replace("login.php");
  return false;
}

using

<form name="form1" id="form1" method="post" onsubmit="return redirect()">  
  <input type="submit" class="button4" name="order" id="order" value="Place Order" >
</form>

Or unobtrusively:

window.onload=function() {
  document.getElementById("form1").onsubmit=function() {
    window.location.replace("login.php");
    return false;
  }
}

using

<form id="form1" method="post">  
  <input type="submit" class="button4" value="Place Order" >
</form>

jQuery:

$("#form1").on("submit",function(e) {
   e.preventDefault(); // cancel submission
   window.location.replace("login.php");
});

-----

Example:

$("#form1").on("submit", function(e) {_x000D_
  e.preventDefault(); // cancel submission_x000D_
  alert("this could redirect to login.php"); _x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>_x000D_
_x000D_
_x000D_
<form id="form1" method="post" action="javascript:alert('Action!!!')">_x000D_
  <input type="submit" class="button4" value="Place Order">_x000D_
</form>

May be a bit late but in my case i had to put the id in the 2nd anonymous object. This is because the 1st one is for route values i.e the return Url.

@using (Html.BeginForm("Login", "Account", new {  ReturnUrl = ViewBag.ReturnUrl }, FormMethod.Post, new { id = "signupform", role = "form" }))

Hope this can help somebody :)

This problem occurs because of UAC and only when you are running IE on the same computer SSRS is on.

To fix it, you have to add an AD group of the users with read priviledges to the actual SSRS website directories and push the security down. UAC is dumb in how if you are an admin on the box. It won't let you access the data unless you also have access to the data through other means such as a non-administrator AD group that is applied to the files.

If you want to reindent the block you're in without having to type any chords, you can do:

[[=]]

Adding autocomplete="new-password" to the password field did the trick. Removed auto filling of both user name and password fields in Chrome.

<input type="password" name="whatever" autocomplete="new-password" />

You're not using regular expressions, so your grep variant of choice should be fgrep, which will behave as you expect it to.

this code line could be a simpler way to acomplish the same:

 public class ProductConfiguration : EntityTypeConfiguration<Product>
    {
        public ProductConfiguration()
        {
            this.Property(m => m.Price).HasPrecision(10, 2);
        }
    }

NR starts at 1, so use

awk '{print NR-1 "," $0}'

% mysql --user=root mysql
CREATE USER 'monty'@'localhost' IDENTIFIED BY 'some_pass';
GRANT ALL PRIVILEGES ON *.* TO 'monty'@'localhost' WITH GRANT OPTION;
CREATE USER 'monty'@'%' IDENTIFIED BY 'some_pass';
GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%' WITH GRANT OPTION;
CREATE USER 'admin'@'localhost';
GRANT RELOAD,PROCESS ON *.* TO 'admin'@'localhost';
CREATE USER 'dummy'@'localhost';
FLUSH PRIVILEGES;

You should do it like this:

 for ($i=1; $i <=10; $i+=2) 
{ 
    echo $i.'<br>';
}

"+=" you can increase your variable as much or less you want. "$i+=5" or "$i+=.5"

In Python 3.x, 5 / 2 will return 2.5 and 5 // 2 will return 2. The former is floating point division, and the latter is floor division, sometimes also called integer division.

In Python 2.2 or later in the 2.x line, there is no difference for integers unless you perform a from __future__ import division, which causes Python 2.x to adopt the 3.x behavior.

Regardless of the future import, 5.0 // 2 will return 2.0 since that's the floor division result of the operation.

You can find a detailed description at https://docs.python.org/whatsnew/2.2.html#pep-238-changing-the-division-operator

From my notes:

http://maps.google.com/maps?q=37.4185N+122.08774W+(label)&ll=37.419731,-122.088715&spn=0.004250,0.011579&t=h&iwloc=A&hl=en

Which parses like this:

    q=latN+lonW+(label)     location of teardrop

    t=k             keyhole (satelite map)
    t=h             hybrid

    ll=lat,-lon     center of map
    spn=w.w,h.h     span of map, degrees

iwloc has something to do with the info window. hl is obviously language.

See also: http://www.seomoz.org/ugc/everything-you-never-wanted-to-know-about-google-maps-parameters

What's wrong with using two regexs (or three)? This makes your intentions more clear and may even improve your performance:

if ($string =~ /^(Clinton|Reagan)/i && $string !~ /Bush/i) { ... }

if (($string =~ /^Clinton/i || $string =~ /^Reagan/i)
        && $string !~ /Bush/i) {
    print "$string\n"
}

if you look to support old version pre lolipop

use the same xml code with some changes

instead of normal ImageView --> AppCompatImageView

instead of android:src --> app:srcCompat

here is example

<android.support.v7.widget.AppCompatImageView
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:id="@+id/button"
        app:srcCompat="@drawable/ic_more_vert_24dp"
        android:tint="@color/primary" />

dont forget update your gradle as @ Sayooj Valsan mention

// Gradle Plugin 2.0+  
 android {  
   defaultConfig {  
     vectorDrawables.useSupportLibrary = true  
   }  
 }  

 compile 'com.android.support:design:23.4.0'

Notice To any one use vector dont ever ever never give your vector reference to color like this one android:fillColor="@color/primary" give its hex value .

I believe if you have 2 arrays of the same type that you want to combine into a third array, there's a very simple way to do that.

here's the code:

String[] theHTMLFiles = Directory.GetFiles(basePath, "*.html");
String[] thexmlFiles = Directory.GetFiles(basePath, "*.xml");
List<String> finalList = new List<String>(theHTMLFiles.Concat<string>(thexmlFiles));
String[] finalArray = finalList.ToArray();

The answer your question: the correct way to refer to a different sheet is by appropriately qualifying each Range you use. Please read this explanation and its conclusion, which I guess will give essential information.

The error you are getting is likely due to the sought-for value Sheet2!D2 not being found in the searched range Sheet1!A1:A65536. This may stem from two cases:

1. The value is actually not present (pointed out by chris nielsen).

2. You are searching the wrong Range. If the ActiveSheet is Sheet1, then using Range("D2") without qualifying it will be searching for Sheet1!D2, and it will throw the same error even if the sought-for value is present in the correct Range. Code accounting for this (and items below) follows:

   Sub srch()
       Dim ws1 As Worksheet, ws2 As Worksheet
       Dim srchres As Variant
   
       Set ws1 = Worksheets("Sheet1")
       Set ws2 = Worksheets("Sheet2")
   
       On Error Resume Next
       srchres = Application.WorksheetFunction.VLookup(ws2.Range("D2"), ws1.Range("A1:C65536"), 1, False)
       On Error GoTo 0
       If (IsEmpty(srchres)) Then
         ws2.Range("E2").Formula = CVErr(xlErrNA) ' Use whatever you want
       Else
         ws2.Range("E2").Value = srchres
       End If
   End Sub
   

I will point out a few additional notable points:

1. Catching the error as done by chris nielsen is a good practice, probably mandatory if using Application.WorksheetFunction.VLookup (although it will not suitably handle case 2 above).

2. This catching is actually performed by the function VLOOKUP as entered in a cell (and, if the sought-for value is not found, the result of the error is presented as #N/A in the result). That is why the first soluton by L42 does not need any extra error handling (it is taken care by =VLOOKUP...).

3. Using =VLOOKUP... is fundamentally different from Application.WorksheetFunction.VLookup: the first leaves a formula, whose result may change if the cells referenced change; the second writes a fixed value.

4. Both solutions by L42 qualify Ranges suitably.

5. You are searching the first column of the range, and returning the value in that same column. Other functions are available for that (although yours works fine).

Since the sender of the event handler is the button itself, I'd use the button's tag property to store the index, initialized in cellForRowAtIndexPath.

But with a little more work I'd do in a completely different way. If you are using a custom cell, this is how I would approach the problem:

• add an 'indexPath` property to the custom table cell
• initialize it in cellForRowAtIndexPath
• move the tap handler from the view controller to the cell implementation
• use the delegation pattern to notify the view controller about the tap event, passing the index path

I also encountered this error message, using the Gitlab registry. The difference was that I was attempting to change the name of the image from previous builds. The problem there, is that the registry for the image being pushed did not exist, because the new name of the image didn't match any of the projects in my group.

TLDR: In Gitlab, the image name has to match the project name.

This seems to me to be what the question is after, no need for formatters:

NSDate *date = [NSDate date];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *components = [calendar components:(NSCalendarUnitHour | NSCalendarUnitMinute) fromDate:date];
NSInteger hour = [components hour];
NSInteger minute = [components minute];