You should use jwt.verify it will check if the token is expired. jwt.decode should not be used if the source is not trusted as it doesn't check if the token is valid.

Keep an in-memory list like this

user_id   revoke_tokens_issued_before
-------------------------------------
123       2018-07-02T15:55:33
567       2018-07-01T12:34:21

If your tokens expire in one week then clean or ignore the records older than that. Also keep only the most recent record of each user. The size of the list will depend on how long you keep your tokens and how often users revoke their tokens. Use db only when the table changes. Load the table in memory when your application starts.

Well, I'm late.

In your image, the paper is white, while the background is colored. So, it's better to detect the paper is Saturation(???) channel in HSV color space. Take refer to wiki HSL_and_HSV first. Then I'll copy most idea from my answer in this Detect Colored Segment in an image.

Main steps:

1. Read into BGR
2. Convert the image from bgr to hsv space
3. Threshold the S channel
4. Then find the max external contour(or do Canny, or HoughLines as you like, I choose findContours), approx to get the corners.

This is my result:

The Python code(Python 3.5 + OpenCV 3.3):

#!/usr/bin/python3
# 2017.12.20 10:47:28 CST
# 2017.12.20 11:29:30 CST

import cv2
import numpy as np

##(1) read into  bgr-space
img = cv2.imread("test2.jpg")

##(2) convert to hsv-space, then split the channels
hsv = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
h,s,v = cv2.split(hsv)

##(3) threshold the S channel using adaptive method(`THRESH_OTSU`) or fixed thresh
th, threshed = cv2.threshold(s, 50, 255, cv2.THRESH_BINARY_INV)

##(4) find all the external contours on the threshed S
#_, cnts, _ = cv2.findContours(threshed, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
cnts = cv2.findContours(threshed, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)[-2]

canvas  = img.copy()
#cv2.drawContours(canvas, cnts, -1, (0,255,0), 1)

## sort and choose the largest contour
cnts = sorted(cnts, key = cv2.contourArea)
cnt = cnts[-1]

## approx the contour, so the get the corner points
arclen = cv2.arcLength(cnt, True)
approx = cv2.approxPolyDP(cnt, 0.02* arclen, True)
cv2.drawContours(canvas, [cnt], -1, (255,0,0), 1, cv2.LINE_AA)
cv2.drawContours(canvas, [approx], -1, (0, 0, 255), 1, cv2.LINE_AA)

## Ok, you can see the result as tag(6)
cv2.imwrite("detected.png", canvas)

Related answers:

1. How to detect colored patches in an image using OpenCV?
2. Edge detection on colored background using OpenCV
3. OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
4. How to use `cv2.findContours` in different OpenCV versions?

What you are doing is not necessarily bad practice but it does however require an extraordinary amount of typing. I would accomplish what you are trying to do like this.

foreach($_POST as $var => $val){
    $$var = $val;
}

This will take all the POST variables and put them in their own individual variables. So if you have a input field named email and the luser puts in [email protected] you will have a var named $email with a value of "[email protected]".

When you're running npm install in the project's root, it installs all of the npm dependencies into the project's node_modules directory.

If you take a look at the project's node_modules directory, you should see a directory called http-server, which holds the http-server package, and a .bin folder, which holds the executable binaries from the installed dependencies. The .bin directory should have the http-server binary (or a link to it).

So in your case, you should be able to start the http-server by running the following from your project's root directory (instead of npm start):

./node_modules/.bin/http-server -a localhost -p 8000 -c-1

This should have the same effect as running npm start.

If you're running a Bash shell, you can simplify this by adding the ./node_modules/.bin folder to your $PATH environment variable:

export PATH=./node_modules/.bin:$PATH

This will put this folder on your path, and you should be able to simply run

http-server -a localhost -p 8000 -c-1

An abstract class is a class that you can't create an object from, so it is mostly used for inheriting from.(I am not sure if you can have static methods in it)

An abstract method is a method that the child class must override, it does not have a body, is marked abstract and only abstract classes can have those methods.

This should help:

1. git fetch
2. git push origin --delete branchName

One line code for Done button:-

[yourTextField setReturnKeyType:UIReturnKeyDone];

And add action method on valueChanged of TextField and add this line-

[yourTextField resignFirstResponder];

I had the same problem and my solution was simple: instead of

Encoding.ASCII

use

Encoding.GetEncoding("iso-8859-1")

The answer was found here.

Edit: more solutions. This maybe more accurate one:

Encoding.GetEncoding(1252);

Also, in some cases this will work for you too if your OS default encoding matches file encoding:

Encoding.Default;

You want to look at CodeDOM. It allows defining code elements and compiling them. Quoting MSDN:

...This object graph can be rendered as source code using a CodeDOM code generator for a supported programming language. The CodeDOM can also be used to compile source code into a binary assembly.

Assuming that winrar.exe is in the PATH, then Runtime.exec is capable of finding it, if it is not, you will need to supply the fully qualified path to it, for example, assuming winrar.exe is installed in C:/Program Files/WinRAR you would need to use something like...

p=r.exec("C:/Program Files/WinRAR/winrar x h:\\myjar.jar *.* h:\\new");

Personally, I would recommend that you use ProcessBuilder as it has some additional configuration abilities amongst other things. Where possible, you should also separate your command and parameters into separate String elements, it deals with things like spaces much better then a single String variable, for example...

ProcessBuilder pb = new ProcessBuilder(
    "C:/Program Files/WinRAR/winrar",
    "x",
    "myjar.jar",
    "*.*",
    "new");
pb.directory(new File("H:/"));
pb. redirectErrorStream(true);

Process p = pb.start();

Don't forget to read the contents of the InputStream from the process, as failing to do so may stall the process

I had same problem. you can't use left < arrow in text property like as android:text="< Go back" in your xml file. Remove any < arrow from you xml code.

Hope It will helps you.

Make UIImageView and UILabel, and set image and text to both of this....then Place a custom button over imageView and Label....

UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"search.png"]];
    imageView.frame = CGRectMake(x, y, imageView.frame.size.width, imageView.frame.size.height);
    [self.view addSubview:imageView];

UILabel *yourLabel = [[UILabel alloc] initWithFrame:CGRectMake(x, y,a,b)];
yourLabel.text = @"raj";
[self.view addSubview:yourLabel];

UIButton * yourBtn=[UIButton buttonWithType:UIButtonTypeCustom];
[yourBtn setFrame:CGRectMake(x, y,c,d)];
[yourBtn addTarget:self action:@selector(@"Your Action") forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:yourBtn];  

You can use disabled attribute to disable the textbox.

document.getElementById('color').disabled = true;

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

  var cX = 0;
  var cY = 0;
  var rX = 0;
  var rY = 0;

  function UpdateCursorPosition(e) {
    cX = e.pageX;
    cY = e.pageY;
  }

  function UpdateCursorPositionDocAll(e) {
    cX = event.clientX;
    cY = event.clientY;
  }
  if (document.all) {
    document.onmousemove = UpdateCursorPositionDocAll;
  } else {
    document.onmousemove = UpdateCursorPosition;
  }

  function AssignPosition(d) {
    if (self.pageYOffset) {
      rX = self.pageXOffset;
      rY = self.pageYOffset;
    } else if (document.documentElement && document.documentElement.scrollTop) {
      rX = document.documentElement.scrollLeft;
      rY = document.documentElement.scrollTop;
    } else if (document.body) {
      rX = document.body.scrollLeft;
      rY = document.body.scrollTop;
    }
    if (document.all) {
      cX += rX;
      cY += rY;
    }
    d.style.left = (cX + 10) + "px";
    d.style.top = (cY + 10) + "px";
  }

  function HideContent(d) {
    if (d.length < 1) {
      return;
    }
    document.getElementById(d).style.display = "none";
  }

  function ShowContent(d) {
    if (d.length < 1) {
      return;
    }
    var dd = document.getElementById(d);
    AssignPosition(dd);
    dd.style.display = "block";
  }

  function ReverseContentDisplay(d) {
    if (d.length < 1) {
      return;
    }
    var dd = document.getElementById(d);
    AssignPosition(dd);
    if (dd.style.display == "none") {
      dd.style.display = "block";
    } else {
      dd.style.display = "none";
    }
  }
  //-->
</script>


<a onmouseover="ShowContent('uniquename3'); return true;" onmouseout="HideContent('uniquename3'); return true;" href="javascript:ShowContent('uniquename3')">
[show on mouseover, hide on mouseout]
</a>
<div id="uniquename3" style="display:none;
position:absolute;
border-style: solid;
background-color: white;
padding: 5px;">
  Content goes here.
</div>

Can refer to here: https://ss64.com/nt/start.html

start "" /D F:\- Big Packets -\kitterengine\Common\ /W Template.bat

Change to your app folder, and run generate command again:

I usually use numpy sum over the logical condition column:

>>> import numpy as np
>>> import pandas as pd
>>> df = pd.DataFrame({'Age' : [20,24,18,5,78]})
>>> np.sum(df['Age'] > 20)
2

This seems to me slightly shorter than the solution presented above

What you could do is creating an instance of a GregorianCalendar and then set the Date as a start time:

Date date;
Calendar myCal = new GregorianCalendar();
myCal.setTime(date);

However, another approach is to not use Date at all. You could use an approach like this:

private Calendar startTime;
private long duration;
private long startNanos;   //Nano-second precision, could be less precise
...
this.startTime = Calendar.getInstance();
this.duration = 0;
this.startNanos = System.nanoTime();

public void setEndTime() {
        this.duration = System.nanoTime() - this.startNanos;
}

public Calendar getStartTime() {
        return this.startTime;
}

public long getDuration() {
        return this.duration;
}

In this way you can access both the start time and get the duration from start to stop. The precision is up to you of course.

You can't update more that one table in a single statement, however the error message you get is because of the aliases, you could try this :

BEGIN TRANSACTION

update A
set A.ORG_NAME =  @ORG_NAME
from table1 A inner join table2 B
on B.ORG_ID = A.ORG_ID
and A.ORG_ID = @ORG_ID

update B
set B.REF_NAME = @REF_NAME
from table2 B inner join table1 A
    on B.ORG_ID = A.ORG_ID
    and A.ORG_ID = @ORG_ID

COMMIT

For those interested in removing extension from filename, you can use https://nodejs.org/api/path.html#path_path_basename_path_ext

path.basename('/foo/bar/baz/asdf/quux.html', '.html');

    import java.io.File;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.io.RandomAccessFile;
    import java.util.UUID;

    import android.content.Context;

    public class Util {
        // ===========================================================
        //
        // ===========================================================

        private static final String INSTALLATION = "INSTALLATION";

        public synchronized static boolean isFirstLaunch(Context context) {
            String sID = null;
            boolean launchFlag = false;
            if (sID == null) {
                File installation = new File(context.getFilesDir(), INSTALLATION);
                try {
                    if (!installation.exists()) {
                    launchFlag = true;                          
                        writeInstallationFile(installation);
                    }
                    sID = readInstallationFile(installation);

                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }
            return launchFlag;
        }

        private static String readInstallationFile(File installation) throws IOException {
            RandomAccessFile f = new RandomAccessFile(installation, "r");// read only mode
            byte[] bytes = new byte[(int) f.length()];
            f.readFully(bytes);
            f.close();

            return new String(bytes);
        }

        private static void writeInstallationFile(File installation) throws IOException {
            FileOutputStream out = new FileOutputStream(installation);
            String id = UUID.randomUUID().toString();
            out.write(id.getBytes());
            out.close();
        }
    }

> Usage (in class extending android.app.Activity)

Util.isFirstLaunch(this);

This function checks if an image is loaded based on having measurable dimensions. This technique is useful if your script is executing after some of the images have already been loaded.

imageLoaded = function(node) {
    var w = 'undefined' != typeof node.clientWidth ? node.clientWidth : node.offsetWidth;
    var h = 'undefined' != typeof node.clientHeight ? node.clientHeight : node.offsetHeight;
    return w+h > 0 ? true : false;
};

The rules to avoid collision of names are both in the C++ standard (see Stroustrup book) and mentioned by C++ gurus (Sutter, etc.).

Personal rule

Because I did not want to deal with cases, and wanted a simple rule, I have designed a personal one that is both simple and correct:

When naming a symbol, you will avoid collision with compiler/OS/standard libraries if you:

• never start a symbol with an underscore
• never name a symbol with two consecutive underscores inside.

Of course, putting your code in an unique namespace helps to avoid collision, too (but won't protect against evil macros)

Some examples

(I use macros because they are the more code-polluting of C/C++ symbols, but it could be anything from variable name to class name)

#define _WRONG
#define __WRONG_AGAIN
#define RIGHT_
#define WRONG__WRONG
#define RIGHT_RIGHT
#define RIGHT_x_RIGHT

Extracts from C++0x draft

From the n3242.pdf file (I expect the final standard text to be similar):

17.6.3.3.2 Global names [global.names]

Certain sets of names and function signatures are always reserved to the implementation:

— Each name that contains a double underscore _ _ or begins with an underscore followed by an uppercase letter (2.12) is reserved to the implementation for any use.

— Each name that begins with an underscore is reserved to the implementation for use as a name in the global namespace.

But also:

17.6.3.3.5 User-defined literal suffixes [usrlit.suffix]

Literal suffix identifiers that do not start with an underscore are reserved for future standardization.

This last clause is confusing, unless you consider that a name starting with one underscore and followed by a lowercase letter would be Ok if not defined in the global namespace...

The answer above (by Janusz) is quite correct, but I personnally don't feel 100% confortable with RelativeLayouts, so I prefer to introduce a 'filler', empty TextView, like this:

<!-- filler -->
<TextView android:layout_height="0dip" 
          android:layout_width="fill_parent"
          android:layout_weight="1" />

before the element that should be at the bottom of the screen.

Use the value child element instead of the value attribute and specify the Enum class name:

<property name="residence">
    <value type="SocialSecurity$Residence">ALIEN</value>
</property>

The advantage of this approach over just writing value="ALIEN" is that it also works if Spring can't infer the actual type of the enum from the property (e.g. the property's declared type is an interface)._{Adapted from araqnid's comment.}

Vietnamese characters for those who need them

'Š'=>'S', 'š'=>'s', 'Ž'=>'Z', 'ž'=>'z', 'À'=>'A', 'Á'=>'A', 'Â'=>'A', 'Ã'=>'A', 'Ä'=>'A', 'Å'=>'A', 'Æ'=>'A', 'Ç'=>'C', 'È'=>'E', 'É'=>'E',
                            'Ê'=>'E', 'Ë'=>'E', 'Ì'=>'I', 'Í'=>'I', 'Î'=>'I', 'Ï'=>'I', 'Ñ'=>'N', 'Ò'=>'O', 'Ó'=>'O', 'Ô'=>'O', 'Õ'=>'O', 'Ö'=>'O', 'Ø'=>'O', 'Ù'=>'U',
                            'Ú'=>'U', 'Û'=>'U', 'Ü'=>'U', 'Ý'=>'Y', 'Þ'=>'B', 'ß'=>'Ss', 'à'=>'a', 'á'=>'a', 'â'=>'a', 'ã'=>'a', 'ä'=>'a', 'å'=>'a', 'æ'=>'a', 'ç'=>'c',
                            'è'=>'e', 'é'=>'e', 'ê'=>'e', 'ë'=>'e', 'ì'=>'i', 'í'=>'i', 'î'=>'i', 'ï'=>'i', 'ð'=>'o', 'ñ'=>'n', 'ò'=>'o', 'ó'=>'o', 'ô'=>'o', 'õ'=>'o',
                            'ö'=>'o', 'ø'=>'o', 'ù'=>'u', 'ú'=>'u', 'û'=>'u', 'ý'=>'y', 'þ'=>'b', 'ÿ'=>'y' );
$str = strtr( $str, $unwanted_array );

Joakim Backman's answer is specific, but this may bring additional clarity to it.

There is a minor difference. As per SQL For Dummies, 8th Edition (2013):

The DECIMAL data type is similar to NUMERIC. ... The difference is that your implementation may specify a precision greater than what you specify — if so, the implementation uses the greater precision. If you do not specify precision or scale, the implementation uses default values, as it does with the NUMERIC type.

It seems that the difference on some implementations of SQL is in data integrity. DECIMAL allows overflow from what is defined based on some system defaults, where as NUMERIC does not.

One could use the Buffers that are provided as part of the java.nio package to perform the conversion.

Here, the source byte[] array has a of length 8, which is the size that corresponds with a long value.

First, the byte[] array is wrapped in a ByteBuffer, and then the ByteBuffer.getLong method is called to obtain the long value:

ByteBuffer bb = ByteBuffer.wrap(new byte[] {0, 0, 0, 0, 0, 0, 0, 4});
long l = bb.getLong();

System.out.println(l);

Result

4

I'd like to thank dfa for pointing out the ByteBuffer.getLong method in the comments.

Although it may not be applicable in this situation, the beauty of the Buffers come with looking at an array with multiple values.

For example, if we had a 8 byte array, and we wanted to view it as two int values, we could wrap the byte[] array in an ByteBuffer, which is viewed as a IntBuffer and obtain the values by IntBuffer.get:

ByteBuffer bb = ByteBuffer.wrap(new byte[] {0, 0, 0, 1, 0, 0, 0, 4});
IntBuffer ib = bb.asIntBuffer();
int i0 = ib.get(0);
int i1 = ib.get(1);

System.out.println(i0);
System.out.println(i1);

Result:

1
4

Or you could use:

android.os.SystemClock.sleep(checkEvery)

which has the advantage of not requiring a wrapping try ... catch.

In your case, you presumably don't want to use grep, but add instead a negative clause to the find command, e.g.

find /home/baumerf/public_html/ -mmin -60 -not -name error_log

If you want to include wildcards in the name, you'll have to escape them, e.g. to exclude files with suffix .log:

find /home/baumerf/public_html/ -mmin -60 -not -name \*.log

You could use the same mechanism the XAML reading system uses: Type converters

var converter = new System.Windows.Media.BrushConverter();
var brush = (Brush)converter.ConvertFromString("#FFFFFF90");
Fill = brush;

import java.awt.FlowLayout;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

public class DisplayImage {

    public static void main(String avg[]) throws IOException
    {
        DisplayImage abc=new DisplayImage();
    }

    public DisplayImage() throws IOException
    {
        BufferedImage img=ImageIO.read(new File("f://images.jpg"));
        ImageIcon icon=new ImageIcon(img);
        JFrame frame=new JFrame();
        frame.setLayout(new FlowLayout());
        frame.setSize(200,300);
        JLabel lbl=new JLabel();
        lbl.setIcon(icon);
        frame.add(lbl);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}

Use below syntax to create schema class from XSD file.

C:\xsd C:\Test\test-Schema.xsd /classes /language:cs /out:C:\Test\

If your subplots also have titles, you may need to adjust the main title size:

plt.suptitle("Main Title", size=16)

To dynamically load recaptcha from a ui-view I use the following method:

In application.js:

    .directive('script', function($parse, $rootScope, $compile) {
    return {
        restrict: 'E',
        terminal: true,
        link: function(scope, element, attr) {
            if (attr.ngSrc) {
                 var domElem = '<script src="'+attr.ngSrc+'" async defer></script>';
                 $(element).append($compile(domElem)(scope));


            }
        }
    };
});

In myPartial.client.view.html:

 <script type="application/javascript" ng-src="http://www.google.com/recaptcha/api.js?render=explicit&onload=vcRecaptchaApiLoaded"></script>

Another method:

SELECT * 
FROM (
    SELECT * FROM table_name
    ORDER BY date ASC, time ASC 
) AS sub
GROUP BY name

GROUP BY groups on the first matching result it hits. If that first matching hit happens to be the one you want then everything should work as expected.

I prefer this method as the subquery makes logical sense rather than peppering it with other conditions.

In-line:

while true; do <your-bash-snippet> && break; done

e.g.

while true; do openconnect x.x.x.x:xxxx && break; done

This is the code to update the file but not to install This program is made through dos for copying files to the latest date and run your program automatically. may help you

open notepad and save file below with ext .bat

xcopy \\IP address\folder_share_name\*.* /s /y /d /q  
start "label" /b "youraplicationname.exe"

When you say:

 #include <cstring>

the g++ compiler should put the <string.h> declarations it itself includes into the std:: AND the global namespaces. It looks for some reason as if it is not doing that. Try replacing one instance of strcpy with std::strcpy and see if that fixes the problem.

Try using MySQLdb. MySQLdb only supports Python 2.

There is a how to page here: http://www.kitebird.com/articles/pydbapi.html

From the page:

# server_version.py - retrieve and display database server version

import MySQLdb

conn = MySQLdb.connect (host = "localhost",
                        user = "testuser",
                        passwd = "testpass",
                        db = "test")
cursor = conn.cursor ()
cursor.execute ("SELECT VERSION()")
row = cursor.fetchone ()
print "server version:", row[0]
cursor.close ()
conn.close ()

This code work in my mysql db:

ALTER TABLE `goods`
ADD COLUMN `id` INT NOT NULL AUTO_INCREMENT,
ADD PRIMARY KEY (`id`);

Another alternative is to use a UIWebView to display the animated GIF. If the GIF is going to be fetched from a server, then this takes care of the fetching. It also works with local GIFs.

In my experience JSON.stringify is slightly faster than util.inspect. I had to save the result object of a DB2 query as a json file, The query returned an object of 92k rows, the conversion took very long to complete with util.inspect, so I did the following test by writing the same 1000 record object to a file with both methods.

1. JSON.Stringify

   fs.writeFile('./data.json', JSON.stringify(obj, null, 2));
   

Time: 3:57 (3 min 57 sec)

Result's format:

[
  {
    "PROB": "00001",
    "BO": "AXZ",
    "CNTRY": "649"
   },
  ...
]

2. util.inspect

   var util = require('util');
   fs.writeFile('./data.json', util.inspect(obj, false, 2, false));
   

Time: 4:12 (4 min 12 sec)

Result's format:

[ { PROB: '00001',
    BO: 'AXZ',
    CNTRY: '649' },
    ...
]

Forget about the react first:
This is not related to react and let us understand the basic concepts of Java Script. For Example you have written following function in java script (name is A).

function a() {

};

Q.1) How to call the function that we have defined?
Ans: a();

Q.2) How to pass reference of function so that we can call it latter?
Ans: let fun = a;

Now coming to your question, you have used paranthesis with function name, mean that function will be called when following statement will be render.

<td><span onClick={this.toggle()}>Details</span></td>

Then How to correct it?
Simple!! Just remove parenthesis. By this way you have given the reference of that function to onClick event. It will call back your function only when your component is clicked.

 <td><span onClick={this.toggle}>Details</span></td>

One suggestion releated to react:
Avoid using inline function as suggested by someone in answers, it may cause performance issue. Avoid following code, It will create instance of same function again and again whenever function will be called (lamda statement creates new instance every time).
Note: and no need to pass event (e) explicitly to the function. you can access it with in the function without passing it.

{<td><span onClick={(e) => this.toggle(e)}>Details</span></td>}

https://cdb.reacttraining.com/react-inline-functions-and-performance-bdff784f5578

I used this and have no problem:

protected $guarded=[];

It's complicated.

First of all, in this code

const p = new Promise((resolve) => {
    resolve(4);
});

the type of p is inferred as Promise<{}>. There is open issue about this on typescript github, so arguably this is a bug, because obviously (for a human), p should be Promise<number>.

Then, Promise<{}> is compatible with Promise<number>, because basically the only property a promise has is then method, and then is compatible in these two promise types in accordance with typescript rules for function types compatibility. That's why there is no error in whatever1.

But the purpose of async is to pretend that you are dealing with actual values, not promises, and then you get the error in whatever2 because {} is obvioulsy not compatible with number.

So the async behavior is the same, but currently some workaround is necessary to make typescript compile it. You could simply provide explicit generic argument when creating a promise like this:

const whatever2 = async (): Promise<number> => {
    return new Promise<number>((resolve) => {
        resolve(4);
    });
};

Remember for jQuery 1.6+ you should use the .prop() function.

$("input").prop('disabled', true);

$("input").prop('disabled', false);

How about using java.util.Arrays?

List<String> list = Arrays.asList((String[])jsonArray.toArray())

Helvetica Neue is a paid font, so you shouldn't @font-face it, as you'd be freely distributing a copyrighted font. It's included in Mac systems but not in windows/linux ones, so yes, plenty of your users wont have it installed. Anyway, you can use 'Arial Narrow' as a windows substitute, which is it's windows equivalent.

schtasks /create /sc onlogon /tn MyProgram /rl highest /tr "exeFullPath"

First, you should probably use SYSDATETIME() if you're looking for more precision.

To format your data with milliseconds, try CONVERT(varchar, SYSDATETIME(), 121).

For other formats, check out the MSDN page on CAST and CONVERT.

I was able unable to locate the svn.simple file, but was able to change credentials using the following three steps:

Checkout project from SVN

Select the repository you need to change the credentials on (note: you will not perform an checkout, but this will bring you to the screen to enter a username/password combination).

Finally, enter the new username and password credentials:

It's a bit confusing, because you begin the process of initializing a new project, but you're only resetting the repository credentials.

I suggest Oj as it is waaaaaay faster than the standard JSON library.

https://github.com/ohler55/oj

(see performance comparisons here)

Most simple approach in Template driven forms for min/max validation with out using reactive forms and building any directive, would be to use pattern attribute of html. This has already been explained and answered here please look https://stackoverflow.com/a/63312336/14069524

To your first question, you can't really do any query through YQL to get data for all companies. It's more oriented towards obtaining data for a smaller query. (I.e., it's not going to give you a full data dump of the whole Yahoo! Finance database.)

To your second question, here's how you can get started exploring the Yahoo! Finance tables in YQL:

1. Start at the YQL Console
2. In the upper left corner, make sure Show Community Tables is checked
3. Type finance in the search field
4. You'll see all the Yahoo Finance tables (about 15)

Then you can try some example queries like the following:

select * from yahoo.finance.quote where symbol in ("YHOO","AAPL","GOOG","MSFT")

Update 2016-04-04: Here's a current screenshot showing the location of the Show Community Tables checkbox which must be clicked to see these finance tables:

You can do this:

def active_action?(controller)
   'active' if controller.remove('/') == controller_name
end

Now, you can use like this:

<%= link_to users_path, class: "some-class #{active_action? users_path}" %>

python -m pip

really works for the problem Fatal error in launcher: Unable to create process using '"'.Worked on Windows 10

#include<stdio.h>
int main(){
char ch='"';
printf("%c",ch);
return 0;
}

Output: "

It was suggested by Mark Mishyn to use slice but there is no reason to create array with make and use in for returned slice of it when array created via literal can be used and it's shorter

for i := range [5]int{} {
        fmt.Println(i)
}

This question has a lot of answers but all they looks not very useful in case if you really want to use backgroundColor to style your buttons. UIButton has nice option to set different images for different control states but there is not same feature for background colors. So one of solutions is to add extension which will generate images from color and apply them to button.

extension UIButton {
  private func image(withColor color: UIColor) -> UIImage? {
    let rect = CGRect(x: 0.0, y: 0.0, width: 1.0, height: 1.0)
    UIGraphicsBeginImageContext(rect.size)
    let context = UIGraphicsGetCurrentContext()

    context?.setFillColor(color.cgColor)
    context?.fill(rect)

    let image = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()

    return image
  }

  func setBackgroundColor(_ color: UIColor, for state: UIControlState) {
    self.setBackgroundImage(image(withColor: color), for: state)
  }
}

Only one issue with this solution -- this change won't be applied to buttons created in storyboard. As for me it's not an issue because I prefer to style UI from code. If you want to use storyboards then some additional magic with @IBInspectable needed.

Second option is subclassing but I prefer to avoid this.

Another way is to use a transparent 1x1.png with width: 100%, height: auto in a div and absolutely positioned content within it:

html:

<div>
    <img src="1x1px.png">
    <h1>FOO</h1>
</div>

css:

div {
    position: relative;
    width: 50%;
}

img {
    width: 100%;
    height: auto;
}

h1 {
    position: absolute;
    top: 10px;
    left: 10px;
}

Fidle: http://jsfiddle.net/t529bjwc/

[<- with mapply is a bit faster than sapply.

> dat[mapply(is.infinite, dat)] <- NA

With mnel's data, the timing is

> system.time(dat[mapply(is.infinite, dat)] <- NA)
#   user  system elapsed 
# 15.281   0.000  13.750 

Here is the answer.

System.exit(0);// normal termination - Successful - zero
System.exit(-1);//Exit with some Error
System.exit(1);//one or any positive integer // exit with some Information message

Try the following code

Month = Date = DateTime.Now.Month.ToString();   
Year = DateTime.Now.Year.ToString(); 
ViewBag.Today = System.Globalization.CultureInfo.InvariantCulture.DateTimeFormat.GetMonthName(Int32.Parse(Month)) + Year;

If you have downloaded Github Desktop Client 1.0.9 then the path for git.exe will be

C:\Users\Username\AppData\Local\GitHubDesktop\app-1.0.9\resources\app\git\cmd\git.exe

There are two type of convert method in SQL.

CAST and CONVERT have similar functionality. CONVERT is specific to SQL Server, and allows for a greater breadth of flexibility when converting between date and time values, fractional numbers, and monetary signifiers. CAST is the more ANSI-standard of the two functions.

Using Convert

Select convert(int,[Column1])

Using Cast

Select cast([Column1] as int)

you must compile the file with c++11 support

g++ -std=c++0x  -o test example.cpp

Difference between each annotation are :

+-------------------------------------------------------------------------------------------------------+
¦                                       Feature                            ¦   Junit 4    ¦   Junit 5   ¦
¦--------------------------------------------------------------------------+--------------+-------------¦
¦ Execute before all test methods of the class are executed.               ¦ @BeforeClass ¦ @BeforeAll  ¦
¦ Used with static method.                                                 ¦              ¦             ¦
¦ For example, This method could contain some initialization code          ¦              ¦             ¦
¦-------------------------------------------------------------------------------------------------------¦
¦ Execute after all test methods in the current class.                     ¦ @AfterClass  ¦ @AfterAll   ¦
¦ Used with static method.                                                 ¦              ¦             ¦
¦ For example, This method could contain some cleanup code.                ¦              ¦             ¦
¦-------------------------------------------------------------------------------------------------------¦
¦ Execute before each test method.                                         ¦ @Before      ¦ @BeforeEach ¦
¦ Used with non-static method.                                             ¦              ¦             ¦
¦ For example, to reinitialize some class attributes used by the methods.  ¦              ¦             ¦
¦-------------------------------------------------------------------------------------------------------¦
¦ Execute after each test method.                                          ¦ @After       ¦ @AfterEach  ¦
¦ Used with non-static method.                                             ¦              ¦             ¦
¦ For example, to roll back database modifications.                        ¦              ¦             ¦
+-------------------------------------------------------------------------------------------------------+

Most of annotations in both versions are same, but few differs.

Reference

Order of Execution.

Dashed box -> optional annotation.

.hide{

visibility: hidden

}

<td class="hide"/>

Edit- Just for you

The difference between display and visibility is this.

"display": has many properties or values, but the ones you're focused on are "none" and "block". "none" is like a hide value, and "block" is like show. If you use the "none" value you will totally hide what ever html tag you have applied this css style. If you use "block" you will see the html tag and it's content. very simple.

"visibility": has many values, but we want to know more about the "hidden" and "visible" values. "hidden" will work in the same way as the "block" value for display, but this will hide tag and it's content, but it will not hide the phisical space of that tag. For example, if you have a couple of text lines, then and image (picture) and then a table with three columns and two rows with icons and text. Now if you apply the visibility css with the hidden value to the image, the image will disappear but the space the image was using will remaing in it's place, in other words, you will end with a big space (hole) between the text and the table. Now if you use the "visible" value your target tag and it's elements will be visible again.

Use <meta charset="utf-8" /> for web browsers when using HTML5.

Use <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> when using HTML4 or XHTML, or for outdated dom parsers, like DOMDocument in php 5.3

Getting first and last elements in an array in Java

int[] a = new int[]{1, 8, 5, 9, 4};

First Element: a[0]

Last Element: a[a.length-1]

In C, the order that you define things often matters. Either move the definition of outchar to the top, or provide a prototype at the top, like this:

#include <stdio.h> #include <stdlib.h>  void outchar(char ch);  int main() {     outchar('A');     outchar('B');     outchar('C');     return 0; }  void outchar(char ch) {     printf("%c", ch); } 

Also, you should be specifying the return type of every function. I added that for you.

System.Reflection.Assembly.GetEntryAssembly().Location;

Arrays

• Set, Check element at a particular index: O(1)
• Searching: O(n) if array is unsorted and O(log n) if array is sorted and something like a binary search is used,
• As pointed out by Aivean, there is no Delete operation available on Arrays. We can symbolically delete an element by setting it to some specific value, e.g. -1, 0, etc. depending on our requirements
• Similarly, Insert for arrays is basically Set as mentioned in the beginning

ArrayList:

• Add: Amortized O(1)
• Remove: O(n)
• Contains: O(n)
• Size: O(1)

Linked List:

• Inserting: O(1), if done at the head, O(n) if anywhere else since we have to reach that position by traveseing the linkedlist linearly.
• Deleting: O(1), if done at the head, O(n) if anywhere else since we have to reach that position by traveseing the linkedlist linearly.
• Searching: O(n)

Doubly-Linked List:

• Inserting: O(1), if done at the head or tail, O(n) if anywhere else since we have to reach that position by traveseing the linkedlist linearly.
• Deleting: O(1), if done at the head or tail, O(n) if anywhere else since we have to reach that position by traveseing the linkedlist linearly.
• Searching: O(n)

Stack:

• Push: O(1)
• Pop: O(1)
• Top: O(1)
• Search (Something like lookup, as a special operation): O(n) (I guess so)

Queue/Deque/Circular Queue:

• Insert: O(1)
• Remove: O(1)
• Size: O(1)

Binary Search Tree:

• Insert, delete and search: Average case: O(log n), Worst Case: O(n)

Red-Black Tree:

• Insert, delete and search: Average case: O(log n), Worst Case: O(log n)

Heap/PriorityQueue (min/max):

• Find Min/Find Max: O(1)
• Insert: O(log n)
• Delete Min/Delete Max: O(log n)
• Extract Min/Extract Max: O(log n)
• Lookup, Delete (if at all provided): O(n), we will have to scan all the elements as they are not ordered like BST

HashMap/Hashtable/HashSet:

• Insert/Delete: O(1) amortized
• Re-size/hash: O(n)
• Contains: O(1)

Here's how you can debug CORS requests using curl.

Sending a regular CORS request using cUrl:

curl -H "Origin: http://example.com" --verbose \
  https://www.googleapis.com/discovery/v1/apis?fields=

The -H "Origin: http://example.com" flag is the third party domain making the request. Substitute in whatever your domain is.

The --verbose flag prints out the entire response so you can see the request and response headers.

The url I'm using above is a sample request to a Google API that supports CORS, but you can substitute in whatever url you are testing.

The response should include the Access-Control-Allow-Origin header.

Sending a preflight request using cUrl:

curl -H "Origin: http://example.com" \
  -H "Access-Control-Request-Method: POST" \
  -H "Access-Control-Request-Headers: X-Requested-With" \
  -X OPTIONS --verbose \
  https://www.googleapis.com/discovery/v1/apis?fields=

This looks similar to the regular CORS request with a few additions:

The -H flags send additional preflight request headers to the server

The -X OPTIONS flag indicates that this is an HTTP OPTIONS request.

If the preflight request is successful, the response should include the Access-Control-Allow-Origin, Access-Control-Allow-Methods, and Access-Control-Allow-Headers response headers. If the preflight request was not successful, these headers shouldn't appear, or the HTTP response won't be 200.

You can also specify additional headers, such as User-Agent, by using the -H flag.

I found this question when I got the same error for a different reason.

My issue was that my Gulp hadn't picked up on the fact that I had declared a new module and I needed to manually re-run Gulp.

Not with CSS you can't. You need to use JS. A quick example copying the img to the background:

var $el = document.getElementById( 'rightflower' )
  , $img = $el.getElementsByTagName( 'img' )[0]
  , src  = $img.src

$el.innerHTML = "";
$el.style.background = "url( " + src + " ) repeat-y;"

Or you can actually repeat the image, but how many times?

var $el = document.getElementById( 'rightflower' )
  , str = ""
  , imgHTML = $el.innerHTML
  , i, i2;
for( i=0,i2=10; i<i2; i++ ){
    str += imgHTML;
}
$el.innerHTML = str;

The .NET Assembly loader:

• is unable to find 1.2.0.203
• but did find a 1.2.0.200

This assembly does not match what was requested and therefore you get this error.

In simple words, it can't find the assembly that was referenced. Make sure it can find the right assembly by putting it in the GAC or in the application path. Also see https://docs.microsoft.com/archive/blogs/junfeng/the-located-assemblys-manifest-definition-with-name-xxx-dll-does-not-match-the-assembly-reference.

I think you need str.contains, if you need rows where values of column date contains string 07311954:

print df[df['date'].astype(str).str.contains('07311954')]

Or if type of date column is string:

print df[df['date'].str.contains('07311954')]

If you want check last 4 digits for string 1954 in column date:

print df[df['date'].astype(str).str[-4:].str.contains('1954')]

Sample:

print df['date']
0    8152007
1    9262007
2    7311954
3    2252011
4    2012011
5    2012011
6    2222011
7    2282011
Name: date, dtype: int64

print df['date'].astype(str).str[-4:].str.contains('1954')
0    False
1    False
2     True
3    False
4    False
5    False
6    False
7    False
Name: date, dtype: bool

print df[df['date'].astype(str).str[-4:].str.contains('1954')]
     cmte_id trans_typ entity_typ state  employer  occupation     date  \
2  C00119040       24K        CCM    MD       NaN         NaN  7311954   

   amount     fec_id    cand_id  
2    1000  C00140715  H2MD05155  

One thing you can also do is Extend date object to return Weekday by:

Date.prototype.getWeekDay = function() {
    var weekday = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
    return weekday[this.getDay()];
}

so, you can only call date.getWeekDay();

To answer your question, these should work as long as:

• Your HTTP server passes these values along to PHP (I don't know any that don't)
• You're not accessing the script via command line (CLI)

But, if I remember correctly, these values can be faked to an extent, so it's best not to rely on them.

My personal preference is to set the domain name as an environment variable in the apache2 virtual host:

# Virtual host
setEnv DOMAIN_NAME example.com

And read it in PHP:

// PHP
echo getenv(DOMAIN_NAME);

This, however, isn't applicable in all circumstances.

%~dp0 - return the path from where script executed

But, important to know also below one:

%CD% - return the current path in runtime, for example if you get into other folders using "cd folder1", and then "cd folder2", it will return the full path until folder2 and not the original path where script located

Yes, use g++ to compile. It will automatically add all the references to libstdc++ which are necessary to link the program.

g++ source.cpp -o source

If you omit the -o parameter, the resultant executable will be named a.out. In any case, executable permissions have already been set, so no need to chmod anything.

Also, the code will give you undefined behaviour (and probably a SIGSEGV) as you are dereferencing a NULL pointer and trying to call a member function on an object that doesn't exist, so it most certainly will not print anything. It will probably crash or do some funky dance.

To have the IT department selected, when the departments are loaded from tblDepartment table, use the following overloaded constructor of SelectList class. Notice that we are passing a value of 1 for selectedValue parameter.

ViewBag.Departments = new SelectList(db.Departments, "Id", "Name", "1");

Output of git push when pushing a new branch

> git checkout -b new_branch
Switched to a new branch 'new_branch'
> git push
fatal: The current branch new_branch has no upstream branch.
To push the current branch and set the remote as upstream, use

    git push --set-upstream origin new_branch

A simple git push assumes that there already exists a remote branch that the current local branch is tracking. If no such remote branch exists, and you want to create it, you must specify that using the -u (short form of --set-upstream) flag.

Why this is so? I guess the implementers felt that creating a branch on the remote is such a major action that it should be hard to do it by mistake. git push is something you do all the time.

"Isn't a branch a new change to be pushed by default?" I would say that "a change" in Git is a commit. A branch is a pointer to a commit. To me it makes more sense to think of a push as something that pushes commits over to the other repositories. Which commits are pushed is determined by what branch you are on and the tracking relationship of that branch to branches on the remote.

You can read more about tracking branches in the Remote Branches chapter of the Pro Git book.

Underscore.js or Lodash.js for advanced array or object sorts

 var data={
        "models": {

            "LTI": [
                "TX"
            ],
            "Carado": [
                "A",
                "T",
                "A(????)",
                "A(????)",
                "T(????)",
                "T(????)",
                "A",
                "T"
            ],
            "SPARK": [
                "SP110C 2",
                "sp150r 18"
            ],
            "Autobianchi": [
                "A112"
            ]
        }
    };

    var arr=[],
        obj={};
    for(var i in data.models){
      arr.push([i, _.sortBy(data.models[i],function (el){return el;})]);
    }
    arr=_.sortBy(arr,function (el){
      return el[0];
    });
    _.map(arr,function (el){return obj[el[0]]=el[1];});
     console.log(obj);

demo

1. In eclipse menu, go to Window->Preferences->Java->Compiler
2. Unmark checkbox "Add line number attributes..."
3. Click Apply -> Yes
4. Mark checkbox "Add line number attribute..."
5. Apply again.
6. Go happy debugging

The trailing slash does not matter for your root domain or subdomain. Google sees the two as equivalent.

But trailing slashes do matter for everything else because Google sees the two versions (one with a trailing slash and one without) as being different URLs. Conventionally, a trailing slash (/) at the end of a URL meant that the URL was a folder or directory.

A URL without a trailing slash at the end used to mean that the URL was a file.

Read more

Google recommendation

Resolved the issue... you need to add the ssh public key to your github account.

1. Verify that the ssh keys have been setup correctly.
   1. Run ssh-keygen
   2. Enter the password (keep the default path - ~/.ssh/id_rsa)
2. Add the public key (~/.ssh/id_rsa.pub) to github account
3. Try git clone. It works!

Initial status (public key not added to git hub account)

foo@bn18-251:~$ rm -rf test
foo@bn18-251:~$ ls
foo@bn18-251:~$ git clone [email protected]:devendra-d-chavan/test.git
Cloning into 'test'...
Permission denied (publickey).
fatal: The remote end hung up unexpectedly
foo@bn18-251:~$

Now, add the public key ~/.ssh/id_rsa.pub to the github account (I used cat ~/.ssh/id_rsa.pub)

foo@bn18-251:~$ ssh-keygen 
Generating public/private rsa key pair.
Enter file in which to save the key (/home/foo/.ssh/id_rsa): 
Created directory '/home/foo/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/foo/.ssh/id_rsa.
Your public key has been saved in /home/foo/.ssh/id_rsa.pub.
The key fingerprint is:
xxxxx
The key's randomart image is:
+--[ RSA 2048]----+
xxxxx
+-----------------+
foo@bn18-251:~$ cat ./.ssh/id_rsa.pub 
xxxxx
foo@bn18-251:~$ git clone [email protected]:devendra-d-chavan/test.git
Cloning into 'test'...
The authenticity of host 'github.com (207.97.227.239)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'github.com,207.97.227.239' (RSA) to the list of known hosts.
Enter passphrase for key '/home/foo/.ssh/id_rsa': 
warning: You appear to have cloned an empty repository.
foo@bn18-251:~$ ls
test
foo@bn18-251:~/test$ git status
# On branch master
#
# Initial commit
#
nothing to commit (create/copy files and use "git add" to track)

You may try this:

public static void main(String[] args) {
    BigDecimal a = new BigDecimal("10.12345");
    System.out.println(toPrecision(a, 2));
}

private static BigDecimal toPrecision(BigDecimal dec, int precision) {
    String plain = dec.movePointRight(precision).toPlainString();
    return new BigDecimal(plain.substring(0, plain.indexOf("."))).movePointLeft(precision);
}

OUTPUT:

10.12

Very simple using slice pipe (angular's core pipe), as you asked for data.title:

{{ data.title | slice:0:20 }}

From Angular common docs https://angular.io/api/common/SlicePipe

Note: This answer should probably not be used in production code. It's a hack and you should know about the implications.

There is the uvrun module (updated for newer Nodejs versions here) where you can execute a single loop round of the libuv main event loop (which is the Nodejs main loop).

Your code would look like this:

function(query) {
  var r;
  myApi.exec('SomeCommand', function(response) {
    r = response;
  });
  var uvrun = require("uvrun");
  while (!r)
    uvrun.runOnce();
  return r;
}

(You might alternative use uvrun.runNoWait(). That could avoid some problems with blocking, but takes 100% CPU.)

Note that this approach kind of invalidates the whole purpose of Nodejs, i.e. to have everything async and non-blocking. Also, it could increase your callstack depth a lot, so you might end up with stack overflows. If you run such function recursively, you definitely will run into troubles.

See the other answers about how to redesign your code to do it "right".

This solution here is probably only useful when you do testing and esp. want to have synced and serial code.

Use

 $/ = undef;

before $document = <FILE>;. $/ is the input record separator, which is a newline by default. By redefining it to undef, you are saying there is no field separator. This is called "slurp" mode.

^{Other solutions like undef $/ and local $/ (but not my $/) redeclare $/ and thus produce the same effect.}

For the benefit of searchers, there is another way you can produce this error message - by missing the $ off the script block name when calling it.

e.g. I had a script block like so:

$qa = {
    param($question, $answer)
    Write-Host "Question = $question, Answer = $answer"
}

I tried calling it using:

&qa -question "Do you like powershell?" -answer "Yes!"

But that errored. The correct way was:

&$qa -question "Do you like powershell?" -answer "Yes!"

Update (thanks to @chaost for pointing this update out):

Mads Torgersen: "Extension everything didn’t make it into C# 8.0. It got “caught up”, if you will, in a very exciting debate about the further future of the language, and now we want to make sure we don’t add it in a way that inhibits those future possibilities. Sometimes language design is a very long game!"

Source: comments section in https://blogs.msdn.microsoft.com/dotnet/2018/11/12/building-c-8-0/

I stopped counting how many times over the years I opened this question with hopes to have seen this implemented.

Well, finally we can all rejoice! Microsoft is going to introduce this in their upcoming C# 8 release.

So instead of doing this...

public static class IntExtensions
{
   public static bool Even(this int value)
   {
        return value % 2 == 0;
   }
}

We'll be finally able to do it like so...

public extension IntExtension extends int
{
    public bool Even => this % 2 == 0;
}

Source: https://blog.ndepend.com/c-8-0-features-glimpse-future/

I would like to add an updated answer - now I have been using git for a while, I find that I am often using the following commands to do any pushing (using the original question as the example):

• git push origin amd_qlp_tester - push to the branch located in the remote called origin on remote-branch called amd_qlp_tester.
• git push -u origin amd_qlp_tester - same as last one, but sets the upstream linking the local branch to the remote branch so that next time you can just use git push/pull if not already linked (only need to do it once).
• git push - Once you have set the upstream you can just use this shorter version.

Note -u option is the short version of --set-upstream - they are the same.

You can try using JavaScript's Date Object

new Date(year,month).getFullYear()%4==0

This will return true or false.

You can use Ctrl + M and Ctrl + P

It's called Edit.StopOutlining

From this

Difference between Encapsulation and Abstraction in OOPS

Abstraction and Encapsulation are two important Object Oriented Programming (OOPS) concepts. Encapsulation and Abstraction both are interrelated terms.

Real Life Difference Between Encapsulation and Abstraction

Encapsulate means to hide. Encapsulation is also called data hiding.You can think Encapsulation like a capsule (medicine tablet) which hides medicine inside it. Encapsulation is wrapping, just hiding properties and methods. Encapsulation is used for hide the code and data in a single unit to protect the data from the outside the world. Class is the best example of encapsulation.

Abstraction refers to showing only the necessary details to the intended user. As the name suggests, abstraction is the "abstract form of anything". We use abstraction in programming languages to make abstract class. Abstract class represents abstract view of methods and properties of class.

Implementation Difference Between Encapsulation and Abstraction

1. Abstraction is implemented using interface and abstract class while Encapsulation is implemented using private and protected access modifier.

2. OOPS makes use of encapsulation to enforce the integrity of a type (i.e. to make sure data is used in an appropriate manner) by preventing programmers from accessing data in a non-intended manner. Through encapsulation, only a predetermined group of functions can access the data. The collective term for datatypes and operations (methods) bundled together with access restrictions (public/private, etc.) is a class.

I'm posting this as an answer because it deserves to be it's own answer rather than a comment under a less useful answer. I find this method much better than the accepted answer since it can keep all the js in a separate file from the HTML.

Answer provided by Jamrelian in his comment under the accepted answer.

$("#myelement").on("input change", function() {
    //do something
});

Just be aware of this comment by Jaime though

Just note that with this solution, in chrome you will get two calls to the handler (one per event), so if you care for that, then you need to guard against it.

As in it will fire the event when you have stopped moving the mouse, and then again when you release the mouse button.

Update

In relation to the change event and input event causing the functionality to trigger twice, this is pretty much a non-issue.

If you have a function firing off on input, it is extremely unlikely that there will be a problem when the change event fires.

input fires rapidly as you drag a range input slider. Worrying about one more function call firing at the end is like worrying about a single drop of water compared to the ocean of water that is the input events.

The reason for even including the change event at all is for the sake of browser compatibility (mainly with IE).

I was trying to import numpy in python 3.2.1 on windows 7.

Followed suggestions in above answer for numpy-1.6.1.zip as below after unzipping it

cd numpy-1.6
python setup.py install

but got an error with a statement as below

unable to find vcvarsall.bat

For this error I found a related question here which suggested installing mingW. MingW was taking some time to install.

In the meanwhile tried to install numpy 1.6 again using the direct windows installer available at this link the file name is "numpy-1.6.1-win32-superpack-python3.2.exe"

Installation went smoothly and now I am able to import numpy without using mingW.

Long story short try using windows installer for numpy, if one is available.

Basically there are two ways: query DB (data length + index length) or check files size. Index length is related to data stored in indexes.

Everything is described here:

http://www.mkyong.com/mysql/how-to-calculate-the-mysql-database-size/

you dont insert into identity fields. You need to specify the field names and use the Values clause

insert into #tmp (AssignedTo, field2, field3) values (value, value, value)

If you use do a insert into... select field field field it will insert the first field into that identity field and will bomb

IF EXISTS() is semantically incorrect. EXISTS condition can be used only inside a SQL statement. So you might rewrite your pl/sql block as follows:

declare
  l_exst number(1);
begin
  select case 
           when exists(select ce.s_regno 
                         from courseoffering co
                         join co_enrolment ce
                           on ce.co_id = co.co_id
                        where ce.s_regno=403 
                          and ce.coe_completionstatus = 'C' 
                          and ce.c_id = 803
                          and rownum = 1
                        )
           then 1
           else 0
         end  into l_exst
  from dual;

  if l_exst = 1 
  then
    DBMS_OUTPUT.put_line('YES YOU CAN');
  else
    DBMS_OUTPUT.put_line('YOU CANNOT'); 
  end if;
end;

Or you can simply use count function do determine the number of rows returned by the query, and rownum=1 predicate - you only need to know if a record exists:

declare
  l_exst number;
begin
   select count(*) 
     into l_exst
     from courseoffering co
          join co_enrolment ce
            on ce.co_id = co.co_id
    where ce.s_regno=403 
      and ce.coe_completionstatus = 'C' 
      and ce.c_id = 803
      and rownum = 1;

  if l_exst = 0
  then
    DBMS_OUTPUT.put_line('YOU CANNOT');
  else
    DBMS_OUTPUT.put_line('YES YOU CAN');
  end if;
end;

chucknorris starts with c, and the browser reads it into a hexadecimal value.

Because A, B, C, D, E, and F are characters in hexadecimal.

The browser converts chucknorris to a hexadecimal value, C00C00000000.

Then the C00C00000000 hexadecimal value is converted to RGB format (divided by 3):

C00C00000000 ? R:C00C, G:0000, B:0000

The browser needs only two digits to indicate the colour:

R:C00C, G:0000, B:0000 ? R:C0, G:00, B:00 ? C00000

Finally, show bgcolor = C00000 in the web browser.

Here's an example demonstrating it:

<table>
  <tr>
    <td bgcolor="chucknorris" cellpadding="10" width="150" align="center">chucknorris</td>
    <td bgcolor="c00c00000000" cellpadding="10" width="150" align="center">c00c00000000</td>
    <td bgcolor="c00000" cellpadding="10" width="150" align="center">c00000</td>
  </tr>
</table>

You can use a VBScript script wrapped in a BAT file. This code works on a relative PATH.

There isn't any need for any third-party tools or dependencies. Just set SOURCEDIR and OUTPUTZIP.

Filename: ZipUp.bat

echo Set fso = CreateObject("Scripting.FileSystemObject") > _zipup.vbs
echo InputFolder = fso.GetAbsolutePathName(WScript.Arguments.Item(0)) >> _zipup.vbs
echo ZipFile = fso.GetAbsolutePathName(WScript.Arguments.Item(1)) >> _zipup.vbs

' Create empty ZIP file.
echo CreateObject("Scripting.FileSystemObject").CreateTextFile(ZipFile, True).Write "PK" ^& Chr(5) ^& Chr(6) ^& String(18, vbNullChar) >> _zipup.vbs

echo Set objShell = CreateObject("Shell.Application") >> _zipup.vbs
echo Set source = objShell.NameSpace(InputFolder).Items >> _zipup.vbs
echo objShell.NameSpace(ZipFile).CopyHere(source) >> _zipup.vbs

echo ' Keep script waiting until compression is done
echo Do Until objShell.NameSpace( ZipFile ).Items.Count = objShell.NameSpace( InputFolder ).Items.Count >> _zipup.vbs
echo     WScript.Sleep 200 >> _zipup.vbs
echo Loop >> _zipup.vbs

CScript  _zipup.vbs  %SOURCEDIR%  %OUTPUTZIP%

del _zipup.vbs

Example usage

SET SOURCEDIR=C:\Some\Path
SET OUTPUTZIP=C:\Archive.zip
CALL ZipUp

Alternatively, you can parametrize this file by replacing the line CScript _zipup.vbs %SOURCEDIR% %OUTPUTZIP% with CScript _zipup.vbs %1 %2, in which case it can be even more easily called from by simply calling CALL ZipUp C:\Source\Dir C:\Archive.zip.

You can set the line height on the text, for example within the active class:

.active {
    ...
    line-height: 2em;
    ....
}

 SELECT name, city, count(*) as qty 
 FROM stuff 
 GROUP BY name, city HAVING count(*)> 1

Less no longer evaluates expression inside calc by default since v3.00.

Original answer (Less v1.x...2.x):

Do this:

body { width: calc(~"100% - 250px - 1.5em"); }

In Less 1.4.0 we will have a strictMaths option which requires all Less calculations to be within brackets, so the calc will work "out-of-the-box". This is an option since it is a major breaking change. Early betas of 1.4.0 had this option on by default. The release version has it off by default.

Firstly, run the command below:

apt-get update && apt-get install procps

and then run:

ps -ef

If you are using a recent Cygwin (e.g. 1.7), you can also start both your .bashrc and .bash_profile with the following line, on the first non commented line:

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples
(set -o igncr) 2>/dev/null && set -o igncr; # this comment is needed

This will force bash to ignore carriage return (\r) characters used in Windows line separators.

See http://cygwin.com/ml/cygwin-announce/2010-08/msg00015.html.

There are many answers already which explain the differences in detail. I found these gifs on codeacademy and they often help me explain the differences effectively.

Supervised Learning

Notice that the training images have labels here and that the model is learning the names of the images.

Unsupervised Learning

Notice that what's being done here is just grouping(clustering) and that the model doesn't know anything about any image.

Use toLocaleString()
In your case do:

return "Total Pounds Entered : " + tot.toLocaleString(); 

<div class="col-md-4 py-3 pic-card">
          <div class="card ">
          <div class="pic-overlay"></div>
          <img class="img-fluid " src="images/Site Images/Health & Fitness-01.png" alt="">
          <div class="centeredcard">
            <h3>
              <span class="card-headings">HEALTH & FITNESS</span>
            </h3>
            <div class="content-inner mt-5">
              <p class="lead  p-overlay">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Recusandae ipsam nemo quasi quo quae voluptate.</p>
            </div>
          </div>
          </div>
        </div>


.pic-card{
     position: relative;

 }
 .pic-overlay{

    top: 0;
    left: 0;
    right:0;
    bottom:0;
    width: 100%;
    height: 100%;
    position: absolute;
    transition: background-color 0.5s ease;

 }
 .content-inner{
    position: relative;
     display: none;
 }

 .pic-card:hover{
     .pic-overlay{
        background-color: $dark-overlay;

     }

     .content-inner{
         display: block;
         cursor: pointer;
     }

     .card-headings{
        font-size: 15px;
        padding: 0;
     }

     .card-headings::after{
        content: '';
        width: 80%;
        border-bottom: solid 2px  rgb(52, 178, 179);
        position: absolute;
        left: 5%;
        top: 25%;
        z-index: 1;
     }
     .p-overlay{
         font-size: 15px;
     }
 }



enter code here

If you open the dropdown for the Text property in Visual Studio, you can use the enter key to split lines. This will obviously only work for static text unless you know the maximum dimensions of dynamic text.

I Want See This

Example http://jsfiddle.net/35vAN/

    <html>
<head>
<script type="text/javascript" src="http://jqueryjs.googlecode.com/files/jquery-1.3.1.min.js" > </script> 
<script type="text/javascript">

    function PrintElem(elem)
    {
        Popup($(elem).html());
    }

    function Popup(data) 
    {
        var mywindow = window.open('', 'my div', 'height=400,width=600');
        mywindow.document.write('<html><head><title>my div</title>');
        /*optional stylesheet*/ //mywindow.document.write('<link rel="stylesheet" href="main.css" type="text/css" />');
        mywindow.document.write('</head><body >');
        mywindow.document.write(data);
        mywindow.document.write('</body></html>');

        mywindow.print();
        mywindow.close();

        return true;
    }

</script>
</head>
<body>

<div id="mydiv">
    This will be printed. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque a quam at nibh adipiscing interdum. Nulla vitae accumsan ante. 
</div>

<div>
    This will not be printed.
</div>

<div id="anotherdiv">
    Nor will this.
</div>

<input type="button" value="Print Div" onclick="PrintElem('#mydiv')" />

</body>

</html>

Just right clic on the created connection and select "Schema browser", then use the filter to display the desired one.

Cheers.

I don't know if this is good enough but I made a static ThreadHelperClass class and implemented it as following .Now I can easily set text property of various controls without much coding .

public static class ThreadHelperClass
{
    delegate void SetTextCallback(Form f, Control ctrl, string text);
    /// <summary>
    /// Set text property of various controls
    /// </summary>
    /// <param name="form">The calling form</param>
    /// <param name="ctrl"></param>
    /// <param name="text"></param>
    public static void SetText(Form form, Control ctrl, string text)
    {
        // InvokeRequired required compares the thread ID of the 
        // calling thread to the thread ID of the creating thread. 
        // If these threads are different, it returns true. 
        if (ctrl.InvokeRequired)
        {
            SetTextCallback d = new SetTextCallback(SetText);
            form.Invoke(d, new object[] { form, ctrl, text });
        }
        else
        {
            ctrl.Text = text;
        }
    }
}

Using the code:

 private void btnTestThread_Click(object sender, EventArgs e)
 {
    Thread demoThread =
       new Thread(new ThreadStart(this.ThreadProcSafe));
            demoThread.Start();
 }

 // This method is executed on the worker thread and makes 
 // a thread-safe call on the TextBox control. 
 private void ThreadProcSafe()
 {
     ThreadHelperClass.SetText(this, textBox1, "This text was set safely.");
     ThreadHelperClass.SetText(this, textBox2, "another text was set safely.");
 }

I think the previous answers are correct, but here is another example (just a f.y.i, success() and error() are deprecated according to AngularJS Main page:

$http
    .get('http://someendpoint/maybe/returns/JSON')
    .then(function(response) {
        return response.data;
    }).catch(function(e) {
        console.log('Error: ', e);
        throw e;
    }).finally(function() {
        console.log('This finally block');
    });

A simple and sustainable solution is to create a layer-list and make it as the background of your TextView:

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:left="-5dp"
        android:right="-5dp"
        android:top="-5dp">
        <shape>
            <stroke
                android:width="1.5dp"
                android:color="@color/colorAccent" />
        </shape>
    </item>
</layer-list>

Remember that after installing Imagick (or indeed any PHP module) you need to restart your web server and/or php-fpm if you're using it, for the module to appear in phpinfo().

This message will appear if you are using a case-insensitive file system (e.g. on a Mac) and you're trying to capitalize the name (or another change of case). In which case you need to rename to a third, dummy, name:

svn mv file-name file-name_
svn mv file-name_ FILE_Name
svn commit

You'll want to install the sshpass program. Then:

sshpass -p YOUR_PASSWORD sftp -oBatchMode=no -b YOUR_COMMAND_FILE_PATH USER@HOST

Obviously, it's better to setup public key authentication. Only use this if that's impossible to do, for whatever reason.

To test an android apps in a real device with Android Studio, You must keep two things in mind

1. You should enable USB debugging option on your android phone.
2. You must have driver installed on your computer.

Now , let me tell you how you can enable USB debugging on your android phone:

1. Go to Settings on your android phone
2. Scroll down to the bottom and click on About phone
3. On this menu also scroll down to the bottom, you should see something Build number
4. Click on Build number 7 times
5. Now your Developer Option enables, once you done click on back button and you should see a new option on your android screen i.e. Developer Options
6. Click On Developer Options
7. Scroll down until you see USB Debugging
8. Go ahead and click the check box next to the USB debugging
9. Now your USB Debugging option enables.
10. Connect your android device to your computer with the help of USB connector.

Now let me tell you how you can download the driver on your Windows PC:

1. Your windows machine need a software called driver to communicate with your phone.
2. Go To OEM USB Driver Website to install your appropriate driver
3. Scroll down and select the driver appropriate for your device. Check the screen shoot
4. Once you download it , you have to unzip your file
5. After Installing Google USB Driver, close SDK Manager window, Connect your phone or tablet through USB cable to your laptop or PC.
6. Now click on My Computer (Windows 7) (or) This PC(Windows 8.1).Select Manage.
7. Select Device Manager –> Portable Devices –> Your Device Name
8. Right Click on Your Device Name and Select Browse My Computer For Driver Software.
9. Point it to C:\Users\YourUserName\AppData\Local\Android\sdk\extras\google\usb_driver. Hit Next and Finish.
10. Now Hit Run Button after selecting Your Project in Project Explorer in Android studio. Choose your device and press OK.

GPS does not need any kind of internet or wireless connection, but there are technologies like A-GPS that use the mobile network to shorten the time to first fix, or the initial positioning or increase the precision in situations when there is a low satellite visibility.

Android phones tend to use A-GPS. If there is no connectivity, they use pure GPS. They do not override the data network mode. If you deactivated it, the phone won't use any data connection (which is handy if you are abroad, and do not want to pay expensive data roaming).

i wrote a small win32 (WinXP 32bit testet) stupid cmd (commandline) script which looks for all java versions in program files and adds a cert to them. The Password needs to be the default "changeit" or change it yourself in the script :-)

@echo off

for /F  %%d in ('dir /B %ProgramFiles%\java') do (
    %ProgramFiles%\Java\%%d\bin\keytool.exe -import -noprompt -trustcacerts -file some-exported-cert-saved-as.crt -keystore %ProgramFiles%\Java\%%d\lib\security\cacerts -storepass changeit
)

pause

Working example. Notes below.

class Animal {
    constructor(public name) {
    }

    move(meters) {
        alert(this.name + " moved " + meters + "m.");
    }
}

class Snake extends Animal {
    move() {
        alert(this.name + " is Slithering...");
        super.move(5);
    }
}

class Horse extends Animal {
    move() {
        alert(this.name + " is Galloping...");
        super.move(45);
    }
}

var sam = new Snake("Sammy the Python");
var tom: Animal = new Horse("Tommy the Palomino");

sam.move();
tom.move(34);

1. You don't need to manually assign the name to a public variable. Using public name in the constructor definition does this for you.

2. You don't need to call super(name) from the specialised classes.

3. Using this.name works.

Notes on use of super.

This is covered in more detail in section 4.9.2 of the language specification.

The behaviour of the classes inheriting from Animal is not dissimilar to the behaviour in other languages. You need to specify the super keyword in order to avoid confusion between a specialised function and the base class function. For example, if you called move() or this.move() you would be dealing with the specialised Snake or Horse function, so using super.move() explicitly calls the base class function.

There is no confusion of properties, as they are the properties of the instance. There is no difference between super.name and this.name - there is simply this.name. Otherwise you could create a Horse that had different names depending on whether you were in the specialized class or the base class.

This is a simple reference:

// this is the id of the form
$("#idForm").submit(function(e) {

    e.preventDefault(); // avoid to execute the actual submit of the form.

    var form = $(this);
    var url = form.attr('action');
    
    $.ajax({
           type: "POST",
           url: url,
           data: form.serialize(), // serializes the form's elements.
           success: function(data)
           {
               alert(data); // show response from the php script.
           }
         });

    
});

input element, of type file

<input id="fileInput" type="file" />

On your input change use the FileReader object and read your input file property:

$('#fileInput').on('change', function () {
    var fileReader = new FileReader();
    fileReader.onload = function () {
      var data = fileReader.result;  // data <-- in this var you have the file data in Base64 format
    };
    fileReader.readAsDataURL($('#fileInput').prop('files')[0]);
});

FileReader will load your file and in fileReader.result you have the file data in Base64 format (also the file content-type (MIME), text/plain, image/jpg, etc)

Go through

Need to list all triggers in SQL Server database with table name and table's schema

This URL have set of queries by which you can get the list of triggers associated with particular table.

I believe you are working in sqlserver following are the steps to get modify triggers

To modify a trigger

1. Expand a server group, and then expand a server.

2. Expand Databases, expand the database in which the table containing the trigger belongs, and then click Tables.

3. In the details pane, right-click the table on which the trigger exists, point to All Tasks, and then click Manage Triggers.

4. In Name, select the name of the trigger.

5. Change the text of the trigger in the Text field as necessary. Press CTRL+TAB to indent the text of a SQL Server Enterprise Manager trigger.

6. To check the syntax of the trigger, click Check Syntax.

You don't need to reset all your user data to switch users. Try clicking on your name in the upper right corner then click on "Account settings". There you will get an option to sign out of the IDE. Once signed out you can sign back in as another Microsoft account.

Just wanted to share with you:
I happened to get this error after changing Digital Ocean machine (IP address). Apparently Gmail recognized it as a hacking attack. After following their directions, and approving the new IP address the code is back and running.

You don't need .format. Use durations like this:

const duration = moment.duration(83, 'seconds');
console.log(duration.minutes() + ':' +duration.seconds());
// output: 1:23

I found this solution here: https://github.com/moment/moment/issues/463

EDIT:

And with padding for seconds, minutes and hours:

const withPadding = (duration) => {
    if (duration.asDays() > 0) {
        return 'at least one day';
    } else {
        return [
            ('0' + duration.hours()).slice(-2),
            ('0' + duration.minutes()).slice(-2),
            ('0' + duration.seconds()).slice(-2),
        ].join(':')
    }
}

withPadding(moment.duration(83, 'seconds'))
// 00:01:23

withPadding(moment.duration(6048000, 'seconds'))
// at least one day

Just disable the VIA protocol in sql server configuration manager

you can also use

Dim intValue as integer = 65  ' letter A for instance
Dim strValue As String = Char.ConvertFromUtf32(intValue)

this doesn't requirement Microsoft.VisualBasic reference

Initially, I was using the following html/css:

img {
  max-width: 100%;
  height: auto;
  width: auto\9; /* ie8 */
}

<div> 
  <img src="..." />
</div>

Then I added class="img" to the <div> like this:

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

And everything started to work fine.

My way

Car * cars;

// else were

extern Car * cars;

void main()
{
    // COLORS == id
    cars = new Car[3] {
        Car(BLUE),
            Car(RED),
            Car(GREEN)
    };
}

You can use Edit > Column Editor... to insert text at the current and following lines. The shortcut is Alt + C.

Try this:

git rev-parse --short HEAD

The command git rev-parse can do a remarkable number of different things, so you'd need to go through the documentation very carefully to spot that though.

Whow are there lots of ways to get this error!.

I will add another given none of the others either applied or were the cause.

I forgot the 'public' in the declaration of my activity class! It was package private.

I had been writing so much Bluetooth code that habit caused me to create an activity class that was package private.

Says something about the obscurity of this error message.

JavaScript doesn't have function overloading, including for methods or constructors.

If you want a function to behave differently depending on the number and types of parameters you pass to it, you'll have to sniff them manually. JavaScript will happily call a function with more or fewer than the declared number of arguments.

function foo(a, b) {
    if (b===undefined) // parameter was omitted in call
        b= 'some default value';

    if (typeof(a)==='string')
        this._constructInSomeWay(a, b);
    else if (a instanceof MyType)
        this._constructInSomeOtherWay(a, b);
}

You can also access arguments as an array-like to get any further arguments passed in.

If you need more complex arguments, it can be a good idea to put some or all of them inside an object lookup:

function bar(argmap) {
    if ('optionalparam' in argmap)
        this._constructInSomeWay(argmap.param, argmap.optionalparam);
    ...
}

bar({param: 1, optionalparam: 2})

Python demonstrates how default and named arguments can be used to cover the most use cases in a more practical and graceful way than function overloading. JavaScript, not so much.

accepted answer is not right with Spring 5. try changing your URL of your web service to .json! that is the right fix. great details here http://stick2code.blogspot.com/2014/03/solved-orgspringframeworkwebhttpmediaty.html

On macOS:

Cmd + 1

On Windows, probably

Ctrl + (/) near right shift key

You just need this:

$(".hidden").attr("placeholder", "Type here to search");

classList is used for manipulating classes and not attributes.

For windows, you need to download the latest version of the open SSL binaries at this time is:

openssl-1.0.2k-x64_86-win64.zip

this problem happened to me when I tried to run MongoDB bin in windows 10

source to download: https://indy.fulgan.com/SSL/

this is just a shot in the dark : when you call connect without a bind first, the system allocates your local port, and if you have multiple threads connecting and disconnecting it could possibly try to allocate a port already in use. the kernel source file inet_connection_sock.c hints at this condition. just as an experiment try doing a bind to a local port first, making sure each bind/connect uses a different local port number.

Using the Job Control of bash to send the process into the background:

1. Ctrl+Z to stop (pause) the program and get back to the shell.
2. bg to run it in the background.
3. disown -h [job-spec] where [job-spec] is the job number (like %1 for the first running job; find about your number with the jobs command) so that the job isn't killed when the terminal closes.

The most efficient, but not the C++ way would be:

   FILE* f = fopen(filename, "r");

   // Determine file size
   fseek(f, 0, SEEK_END);
   size_t size = ftell(f);

   char* where = new char[size];

   rewind(f);
   fread(where, sizeof(char), size, f);

   delete[] where;

#EDIT - 2

Just tested the std::filebuf variant also. Looks like it can be called the best C++ approach, even though it's not quite a C++ approach, but more a wrapper. Anyway, here is the chunk of code that works almost as fast as plain C does.

   std::ifstream file(filename, std::ios::binary);
   std::streambuf* raw_buffer = file.rdbuf();

   char* block = new char[size];
   raw_buffer->sgetn(block, size);
   delete[] block;

I've done a quick benchmark here and the results are following. Test was done on reading a 65536K binary file with appropriate (std::ios:binary and rb) modes.

[==========] Running 3 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 4 tests from IO
[ RUN      ] IO.C_Kotti
[       OK ] IO.C_Kotti (78 ms)
[ RUN      ] IO.CPP_Nikko
[       OK ] IO.CPP_Nikko (106 ms)
[ RUN      ] IO.CPP_Beckmann
[       OK ] IO.CPP_Beckmann (1891 ms)
[ RUN      ] IO.CPP_Neil
[       OK ] IO.CPP_Neil (234 ms)
[----------] 4 tests from IO (2309 ms total)

[----------] Global test environment tear-down
[==========] 4 tests from 1 test case ran. (2309 ms total)
[  PASSED  ] 4 tests.

DECLARE @vi INT
DECLARE @vQuery NVARCHAR(1000)

SET @vQuery = N'SELECT @vi= COUNT(*) FROM <TableName>'

EXEC SP_EXECUTESQL 
        @Query  = @vQuery
      , @Params = N'@vi INT OUTPUT'
      , @vi = @vi OUTPUT

SELECT @vi

The UNION operator is just for combining two or more SELECT statements.

While JOIN is for selecting rows from each table, either by the inner, outer, left or right method.

Refer to here and here . There is a better explanation with examples.

You can toggle a child div during onmouseover and onmouseout like this:

function Tooltip(el, text) {
  el.onmouseover = function() {
    el.innerHTML += '<div class="tooltip">' + text + '</div>' 
    }
  el.onmouseout = function() {
    el.removeChild(el.querySelector(".tooltip"))
  }
}

//Sample Usage
Tooltip(document.getElementById("mydiv"),"hello im a tip div")

Example in Stack Snippets & jsFiddle

function Tooltip(el, text) {_x000D_
  el.onmouseover = function() {_x000D_
    el.innerHTML += '<div class="tooltip">' + text + '</div>'_x000D_
  }_x000D_
  el.onmouseout = function() {_x000D_
    el.removeChild(el.querySelector(".tooltip"))_x000D_
  }_x000D_
}_x000D_
_x000D_
//Sample Usage_x000D_
Tooltip(document.getElementById("mydiv"), "I'm a tooltip")

#mydiv {_x000D_
  position: relative;_x000D_
  display: flex;_x000D_
  align-items: center;_x000D_
  justify-content: center;_x000D_
  width: 120px;_x000D_
  height: 50px;_x000D_
  padding: 5px 10px;_x000D_
  background-color: #e2f7ff;_x000D_
  box-shadow: 1px 1px 1px 0px #cecece;_x000D_
}_x000D_
_x000D_
.tooltip {_x000D_
  position: absolute;_x000D_
  display: inline-block;_x000D_
  white-space: nowrap;_x000D_
  width: auto;_x000D_
  height: auto;_x000D_
  background-color: #11121b;_x000D_
  color: white;_x000D_
  padding: 4px 6px;_x000D_
  border-radius: 3px;_x000D_
  z-index: 99;_x000D_
  left: 100%;_x000D_
  top: 0;_x000D_
}

<div id="mydiv"> This is just a div </div>

Unless you do some kind of post-processing work, the video will never be better than the original frames. Also just like a flip-book, if you have a big "jump" between keyframes it will look funny. You generally need enough "tweens" in between the keyframes to give smooth animation. HTH

Not the best way to error log, but you can always set everything to an array for the promiseAll, and store the resulting results into new variables.

If you use graphQL you need to postprocess the response regardless and if it doesn't find the correct reference it'll crash the app, narrowing down where the problem is at

const results = await Promise.all([
  this.props.client.query({
    query: GET_SPECIAL_DATES,
  }),
  this.props.client.query({
    query: GET_SPECIAL_DATE_TYPES,
  }),
  this.props.client.query({
    query: GET_ORDER_DATES,
  }),
]).catch(e=>console.log(e,"error"));
const specialDates = results[0].data.specialDates;
const specialDateTypes = results[1].data.specialDateTypes;
const orderDates = results[2].data.orders;

    List list1 = new ArrayList();
    list1.add("one");
    list1.add("three");
    list1.add("four");

    List list2 = new ArrayList();
    list2.add("one");
    list2.add("two");
    list2.add("three");
    list2.add("four");
    list2.add("five");


    list2.stream().filter( x -> !list1.contains(x) ).forEach(x -> System.out.println(x));

The output is:

two
five

You can use the row_number() function for this.

INSERT INTO PM_Ingrediants_Arrangements_Temp(AdminID, ArrangementID, IngrediantID, Sequence)
    SELECT @AdminID, @ArrangementID, PM_Ingrediants.ID,
            row_number() over (order by (select NULL))
    FROM PM_Ingrediants 
    WHERE PM_Ingrediants.ID IN (SELECT ID FROM GetIDsTableFromIDsList(@IngrediantsIDs)
                             )

If you want to start with the maximum already in the table then do:

INSERT INTO PM_Ingrediants_Arrangements_Temp(AdminID, ArrangementID, IngrediantID, Sequence)
    SELECT @AdminID, @ArrangementID, PM_Ingrediants.ID,
           coalesce(const.maxs, 0) + row_number() over (order by (select NULL))
    FROM PM_Ingrediants cross join
         (select max(sequence) as maxs from PM_Ingrediants_Arrangement_Temp) const
    WHERE PM_Ingrediants.ID IN (SELECT ID FROM GetIDsTableFromIDsList(@IngrediantsIDs)
                             )

Finally, you can just make the sequence column an auto-incrementing identity column. This saves the need to increment it each time:

create table PM_Ingrediants_Arrangement_Temp ( . . .
    sequence int identity(1, 1) -- and might consider making this a primary key too
    . . .
)

Suppose your query is "select id,name from users where rollNo = 1001".

Here query will return a object with id and name column. Your Response class is like bellow:

public class UserObject{
        int id;
        String name;
        String rollNo;

        public UserObject(Object[] columns) {
            this.id = (columns[0] != null)?((BigDecimal)columns[0]).intValue():0;
            this.name = (String) columns[1];
        }

        public int getId() {
            return id;
        }

        public void setId(int id) {
            this.id = id;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public String getRollNo() {
            return rollNo;
        }

        public void setRollNo(String rollNo) {
            this.rollNo = rollNo;
        }
    }

here UserObject constructor will get a Object Array and set data with object.

public UserObject(Object[] columns) {
            this.id = (columns[0] != null)?((BigDecimal)columns[0]).intValue():0;
            this.name = (String) columns[1];
        }

Your query executing function is like bellow :

public UserObject getUserByRoll(EntityManager entityManager,String rollNo) {

        String queryStr = "select id,name from users where rollNo = ?1";
        try {
            Query query = entityManager.createNativeQuery(queryStr);
            query.setParameter(1, rollNo);

            return new UserObject((Object[]) query.getSingleResult());
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }

Here you have to import bellow packages:

import javax.persistence.Query;
import javax.persistence.EntityManager;

Now your main class, you have to call this function. First you have to get EntityManager and call this getUserByRoll(EntityManager entityManager,String rollNo) function. Calling procedure is given bellow:

@PersistenceContext
private EntityManager entityManager;

UserObject userObject = getUserByRoll(entityManager,"1001");

Now you have data in this userObject.

Here is Imports

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

Note:

query.getSingleResult() return a array. You have to maintain the column position and data type.

select id,name from users where rollNo = ?1 

query return a array and it's [0] --> id and [1] -> name.

For more info, visit this Answer

Thanks :)

mappedby="object of entity of same class created in another class”

Note:-Mapped by can be used only in one class because one table must contain foreign key constraint. if mapped by can be applied on both side then it remove foreign key from both table and without foreign key there is no relation b/w two tables.

Note:- it can be use for following annotations:- 1.@OneTone 2.@OneToMany 3.@ManyToMany

Note---It cannot be use for following annotation :- 1.@ManyToOne

In one to one :- Perform at any side of mapping but perform at only one side . It will remove the extra column of foreign key constraint on the table on which class it is applied.

For eg . If we apply mapped by in Employee class on employee object then foreign key from Employee table will be removed.

It'll need to be something tailored to the needs, which are dependent on the structure you're presented with. For the example you've provided, this works:

$(document).ready(function(){
     var $tmp = $('#listItem').children().remove();
     $('#listItem').text('').append($tmp);
});

Demo: http://jquery.nodnod.net/cases/2385/run

But it's fairly dependent on the markup being similar to what you posted.

Use component scanning as given below, if com.project.action.PasswordHintAction is annotated with stereotype annotations

<context:component-scan base-package="com.project.action"/>

EDIT

I see your problem, in PasswordHintActionTest you are autowiring PasswordHintAction. But you did not create bean configuration for PasswordHintAction to autowire. Add one of stereotype annotation(@Component, @Service, @Controller) to PasswordHintAction like

@Component
public class PasswordHintAction extends BaseAction {
    private static final long serialVersionUID = -4037514607101222025L;
    private String username;

or create xml configuration in applicationcontext.xml like

<bean id="passwordHintAction" class="com.project.action.PasswordHintAction" />

Depending on what you want to accomplish within the loop, iterate over one of these instead:

• countries.keySet()
• countries.entrySet()
• countries.values()

So you are doing the right thing concerning "-XX:MaxPermSize=512m": it is indeed the correct syntax. You could try to set these options directly to the Catalyna server files so they are used on server start.

Maybe this post will help you!

How to make sure that Tomcat6 reads CATALINA_OPTS on Windows?

SELECT last_value, increment_by from "other_schema".id_seq;

for adding a seq to a column where the schema is not public try this.

nextval('"other_schema".id_seq'::regclass)

Windows 10 Solution:

For me this issue was due to downloading and creating an AVD using Android Studio and then trying to use that virtual device with the Ionic command line. I resolved this by deleting all existing emulators and creating a new one from the command line.

(the avdmanager file typically lives in C:\Users\\Android\sdk\tools\bin)

List existing emulators: avdmanager list avd

Delete an existing emulator: avdmanager delete avd -n emulator_name

Add system image: sdkmanager "system-images;android-24;default;x86_64"

Create new emulator: sdkmanager "system-images;android-27;google_apis_playstore;x86"

It is better to add CORS enabling code on Server Side. To enable CORS in NodeJS and ExpressJs based application following code should be included-

var app = express();

app.use(function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "*");
  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
  next();
});

I was trying to find a better answer that was more standalone, so I started to think about how JQuery does events and custom events. Since click (from JQuery) is just any event, I thought that all I had to do was trigger the event given that the iframe's content has been clicked on. Thus, this was my solution

$(document).ready(function () {
    $("iframe").each(function () {
        //Using closures to capture each one
        var iframe = $(this);
        iframe.on("load", function () { //Make sure it is fully loaded
            iframe.contents().click(function (event) {
                iframe.trigger("click");
            });
        });

        iframe.click(function () {
            //Handle what you need it to do
        });
    });
});

Current Example:

You need to define border-width:1px

Your code should read:

$(this).css({"border-color": "#C1E0FF", 
             "border-width":"1px", 
             "border-style":"solid"});

Suggested Example:

You should ideally use a class and addClass/removeClass

$(this).addClass('borderClass'); $(this).removeClass('borderClass');

and in your CSS:

.borderClass{
  border-color: #C1E0FF;
  border-width:1px;
  border-style: solid;
  /** OR USE INLINE
  border: 1px solid #C1E0FF;
  **/
}

jsfiddle working example: http://jsfiddle.net/gorelative/tVbvF/\

jsfiddle with animate: http://jsfiddle.net/gorelative/j9Xxa/ This just gives you an example of how it could work, you should get the idea.. There are better ways of doing this most likely.. like using a toggle()

You can enable long path names using PowerShell:

Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\FileSystem' -Name LongPathsEnabled -Type DWord -Value 1 

Another Version is to use a Group Policy in Computer Configuration/Administrative Templates/System/Filesystem:

class Testclass
{
  public $testvar;

  function dosomething()
  {
    echo $this->testvar;
  }
}

$Testclass = new Testclass();
$Testclass->testvar = "another value";    
$Testclass->dosomething(); ////It will print "another value"

You don't have to use gdb. GCC will do it.

 gcc -S foo.c

This will create foo.s which is the assembly.

gcc -m32 -c -g -Wa,-a,-ad foo.c > foo.lst

The above version will create a listing file that has both the C and the assembly generated by it. GCC FAQ

Uninstall the previous version if installed already and try again.It might help

This issue often happens when we try to merge another branch changes from a wrong directory.

Ex:

Branch2\Branch1_SubDir$ svn merge -rStart:End Branch1
         ^^^^^^^^^^^^
   Merging at wrong location

A conflict that gets thrown on its execution is :

Tree conflict on 'Branch1_SubDir'
   > local missing or deleted or moved away, incoming dir edit upon merge

And when you select q to quit resolution, you get status as:

 M      .
!     C Branch1_SubDir
      >   local missing or deleted or moved away, incoming dir edit upon merge
!     C Branch1_AnotherSubDir
      >   local missing or deleted or moved away, incoming dir edit upon merge

which clearly means that the merge contains changes related to Branch1_SubDir and Branch1_AnotherSubDir, and these folders couldn't be found inside Branch1_SubDir(obviously a directory can't be inside itself).

How to avoid this issue at first place:

Branch2$ svn merge -rStart:End Branch1
 ^^^^
Merging at root location

The simplest fix for this issue that worked for me :

svn revert -R .

Simply use :

docker-compose build [yml_service_name]

Replace [yml_service_name] with your service name in docker-compose.yml file. You can use docker-compose restart to make sure changes are effected. You can use --no-cache to ignore the cache.

:nth-child is the answer you are looking for.

Compare two values: the normal double, and the double after flooring it. If they are the same value, there is no decimal component.

Solved 403: Forbidden when visiting localhost. Using ports 80,443,3308 (the later to handle conflict with MySQL Server installation) Windows 10, XAMPP 7.4.1, Apache 2.4.x My web files are in a separate folder.

httpd.conf - look for these lines and set it up where you have your files, mine is web folder.

DocumentRoot "C:/web"
<Directory "C:/web">

Changed these 2 lines.

<VirtualHost *:80>
 ServerAdmin [email protected]
 DocumentRoot "C:/web/project1"
 ServerName project1.localhost
 <Directory "C:/web/project1">
  Order allow,deny
  allow from all
 </Directory>
</VirtualHost>

to this

<VirtualHost *:80>
 ServerAdmin [email protected]
 DocumentRoot "C:/web/project1"
 ServerName project1.localhost
 <Directory "C:/web/project1">
  Require all granted
 </Directory>
</VirtualHost>

Add your details in your hosts file C:\Windows\System32\drivers\etc\hosts file

127.0.0.1 localhost
127.0.0.1 project1.localhost

Stop start XAMPP, and click Apache admin (or localhost) and the wonderful XAMPP dashboard now displays! And visit your project at project1.localhost

The conversion fails (java.lang.ClassCastException: java.lang.String cannot be cast to java.util.ArrayList) because you have surely some objects that are not ArrayList. verify the types of your different objects.

Boostrap 3 has a component for exactly this. It's:

<span class="badge">100</span>

Are you using ARC? The problem here is that you don't have a reference to the UIColor object that you're trying to apply; the CGColor is backed by that UIColor, but ARC will deallocate the UIColor before you have a chance to use the CGColor.

The clearest solution is to have a local variable pointing to your UIColor with the objc_precise_lifetime attribute.

You can read more about this exact case on this article about UIColor and short ARC lifetimes or get more details about the objc_precise_lifetime attribute.

Something that sometimes crops up you may/maynot be aware of

Won't always be picked up by by $_POST['delete'] when using IE. Firefox and chrome should work fine though. I use a seperate isntead which solves the problem for IE

As for your not deleting in your code above you appear to be echoing out 2x sets of check boxes both pulling the same data? Is this just a copy + paste mistake or is this actually how your code is?

If its how your code is that'll be the problem as the user could be ticking one checkbox array item but the other one will be unchecked so the php code for delete is getting confused. Either rename the 2nd check box or delete that block of html surely you don't need to display the same list twice ?

cracked it after 2 hours...

1. download this usb driver: http://dlcdnet.asus.com/pub/ASUS/EeePAD/nexus7/usb_driver_r06_windows.zip

2.go to the device manager , right click the nexus device and choose properties, choose "hardware" and then choose update your driver , choose manualy and pick the folder you opend the zip file to and press apply.

3.open your setting in nexus . go to : "about the device" , at to the bottom of the page and press it strong text7 times .

4.open the developers menu and enable debug with usb.

5.finally press storage from the setting menu and click the menu that apears at the top left corner. press the connect usb to the computer, choose the second option (PTP).

one more thing: if that doesn't work restart your computer

that should do the trick , they couldn't make it more simple than that...

There are many plugins for doing that. I normally use datatables it works great. http://datatables.net/

IllegalStateException is encountered if you commit any fragment transaction after the activity has lost its state- Activity is not in foreground. This is commonly encountered when you try to commit any fragment in AsyncTask or after a network request.

To avoid this crash you just need to delay any fragment transaction untill the state of activity is restored. Following is how it is done

Declare two private boolean variables

public class MainActivity extends AppCompatActivity {

    //Boolean variable to mark if the transaction is safe
    private boolean isTransactionSafe;

    //Boolean variable to mark if there is any transaction pending
    private boolean isTransactionPending;

Now in onPostResume() and onPause we set and unset our boolean variable isTransactionSafe. Idea is to mark trasnsaction safe only when the activity is in foreground so there is no chance of stateloss.

/*
onPostResume is called only when the activity's state is completely restored. In this we will
set our boolean variable to true. Indicating that transaction is safe now
 */
public void onPostResume(){
    super.onPostResume();
    isTransactionSafe=true;
}
/*
onPause is called just before the activity moves to background and also before onSaveInstanceState. In this
we will mark the transaction as unsafe
 */

public void onPause(){
    super.onPause();
    isTransactionSafe=false;

}

private void commitFragment(){
    if(isTransactionSafe) {
        MyFragment myFragment = new MyFragment();
        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        fragmentTransaction.add(R.id.frame, myFragment);
        fragmentTransaction.commit();
    }
}

What we have done so far will save from IllegalStateException but our transactions will be lost if they are done after the activity moves to background, kind of like commitAllowStateloss(). To help with that we have isTransactionPending boolean variable

public void onPostResume(){
   super.onPostResume();
   isTransactionSafe=true;
/* Here after the activity is restored we check if there is any transaction pending from
the last restoration
*/
   if (isTransactionPending) {
      commitFragment();
   }
}


private void commitFragment(){

 if(isTransactionSafe) {
     MyFragment myFragment = new MyFragment();
     FragmentManager fragmentManager = getFragmentManager();
     FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
     fragmentTransaction.add(R.id.frame, myFragment);
     fragmentTransaction.commit();
     isTransactionPending=false;
 }else {
     /*
     If any transaction is not done because the activity is in background. We set the
     isTransactionPending variable to true so that we can pick this up when we come back to
foreground
     */
     isTransactionPending=true;
 }
}

This article explains quite in detail of why this exception is encountered and compares various methods to resolve it . Highly recommended

If you are not allowed to use C++'s string class (which is terrible teaching C++ imho), a raw, safe array version would look something like this.

#include <cstring>
#include <iostream>

int main()
{
    char array1[] ="The dog jumps ";
    char array2[] = "over the log";
    char * newArray = new char[std::strlen(array1)+std::strlen(array2)+1];
    std::strcpy(newArray,array1);
    std::strcat(newArray,array2);
    std::cout << newArray << std::endl;
    delete [] newArray;
    return 0;
}

This assures you have enough space in the array you're doing the concatenation to, without assuming some predefined MAX_SIZE. The only requirement is that your strings are null-terminated, which is usually the case unless you're doing some weird fixed-size string hacking.

Edit, a safe version with the "enough buffer space" assumption:

#include <cstring>
#include <iostream>

int main()
{
    const unsigned BUFFER_SIZE = 50;
    char array1[BUFFER_SIZE];
    std::strncpy(array1, "The dog jumps ", BUFFER_SIZE-1); //-1 for null-termination
    char array2[] = "over the log";
    std::strncat(array1,array2,BUFFER_SIZE-strlen(array1)-1); //-1 for null-termination
    std::cout << array1 << std::endl;
    return 0;
}

    if($this->mng_auth->get_language()=='en')
          {
                    $excel->getActiveSheet()->setRightToLeft(false); 
          }
                else
                {  
                    $excel->getActiveSheet()->setRightToLeft(true); 
                }

       $styleArray = array(
                'borders' => array(
                    'allborders' => array(
                        'style' => PHPExcel_Style_Border::BORDER_THIN,
                            'color' => array('argb' => '00000000'),
                    ),
                ),
            );

          //SET property
          $objPHPExcel->getActiveSheet()->getStyle('A1:M10001')->applyFromArray($styleArray);


    $objPHPExcel->getActiveSheet()->getStyle('A1:M10001')->getAlignment()->setWrapText(true); 


$objPHPExcel->getActiveSheet()->getStyle('A1:'.chr(65+count($fields)-1).$query->num_rows())->applyFromArray($styleArray);  

$objPHPExcel->getActiveSheet()->getStyle('A1:'.chr(65+count($fields)-1).$query->num_rows())->getAlignment()->setWrapText(true); 

I think I am late in answering this question, but it keep coming up in my feed.

Navneet has provided excellent answer. Adding to it visually.

Partitioning helps in elimination of data, if used in WHERE clause, where as bucketing helps in organizing data in each partition into multiple files, so as same set of data is always written in same bucket. Helps a lot in joining of columns.

Suppose, you have a table with five columns, name, server_date, some_col3, some_col4 and some_col5. Suppose, you have partitioned the table on server_date and bucketed on name column in 10 buckets, your file structure will look something like below.

1. server_date=xyz
   • 00000_0
   • 00001_0
   • 00002_0
   • ........
   • 00010_0

Here server_date=xyz is the partition and 000 files are the buckets in each partition. Buckets are calculated based on some hash functions, so rows with name=Sandy will always go in same bucket.

From info gcc (emphasis mine):

-ansi

In C mode, this is equivalent to -std=c90. In C++ mode, it is equivalent to -std=c++98. This turns off certain features of GCC that are incompatible with ISO C90 (when compiling C code), or of standard C++ (when compiling C++ code), such as the asm and typeof keywords, and predefined macros such as 'unix' and 'vax' that identify the type of system you are using. It also enables the undesirable and rarely used ISO trigraph feature. For the C compiler, it disables recognition of C++ style // comments as well as the inline keyword.

(It uses vax in the example instead of linux because when it was written maybe it was more popular ;-).

The basic idea is that GCC only tries to fully comply with the ISO standards when it is invoked with the -ansi option.

I was getting the same error in python 3.4.3 too and I tried using the solutions mentioned here and elsewhere with no success.

Microsoft makes a compiler available for Python 2.7 but it didn't do me much good since I am on 3.4.3.

Python since 3.3 has transitioned over to 2010 and you can download and install Visual C++ 2010 Express for free here: https://www.visualstudio.com/downloads/download-visual-studio-vs#d-2010-express

Here is the official blog post talking about the transition to 2010 for 3.3: http://blog.python.org/2012/05/recent-windows-changes-in-python-33.html

Because previous versions gave a different error for vcvarsall.bat I would double check the version you are using with "pip -V"

C:\Users\B>pip -V
pip 6.0.8 from C:\Python34\lib\site-packages (python 3.4)

As a side note, I too tried using the latest version of VC++ (2013) first but it required installing 2010 express.

From that point forward it should work for anyone using the 32 bit version, if you are on the 64 bit version you will then get the ValueError: ['path'] message because VC++ 2010 doesn't have a 64 bit compuler. For that you have to get the Microsoft SDK 7.1. I can't hyperlink the instruction for 64 bit because I am limited to 2 links per post but its at

Python PIP has issues with path for MS Visual Studio 2010 Express for 64-bit install on Windows 7

To export data you need to right click on your results and select export data, after which you will be asked for a specific file format such as insert, loader, or text etc. After selecting this browse your directory and select the export destination.

You can enable annotation processors in IntelliJ via the following:

1. Click on File
2. Click on Settings
3. In the little search box in the upper-left hand corner, search for "Annotation Processors"
4. Check "Enable annotation processing"
5. Click OK

MySQL 5.x specification for decimal datatype is: DECIMAL[(M[,D])] [UNSIGNED] [ZEROFILL]. The answer above is wrong (now corrected) in saying that unsigned decimals are not possible.

To define a field allowing only unsigned decimals, with a total length of 6 digits, 4 of which are decimals, you would use: DECIMAL (6,4) UNSIGNED.

You can likewise create unsigned (ie. not negative) FLOAT and DOUBLE datatypes.

Update on MySQL 8.0.17+, as in MySQL 8 Manual: 11.1.1 Numeric Data Type Syntax:

"Numeric data types that permit the UNSIGNED attribute also permit SIGNED. However, these data types are signed by default, so the SIGNED attribute has no effect.*

As of MySQL 8.0.17, the UNSIGNED attribute is deprecated for columns of type FLOAT, DOUBLE, and DECIMAL (and any synonyms); you should expect support for it to be removed in a future version of MySQL. Consider using a simple CHECK constraint instead for such columns.

Epoch reference date

An epoch reference date is a point on the timeline from which we count time. Moments before that point are counted with a negative number, moments after are counted with a positive number.

Many epochs in use

Why is 1 January 1970 00:00:00 considered the epoch time?

No, not the epoch, an epoch. There are many epochs in use.

This choice of epoch is arbitrary.

Major computers systems and libraries use any of at least a couple dozen various epochs. One of the most popular epochs is commonly known as Unix Time, using the 1970 UTC moment you mentioned.

While popular, Unix Time’s 1970 may not be the most common. Also in the running for most common would be January 0, 1900 for countless Microsoft Excel & Lotus 1-2-3 spreadsheets, or January 1, 2001 used by Apple’s Cocoa framework in over a billion iOS/macOS machines worldwide in countless apps. Or perhaps January 6, 1980 used by GPS devices?

Many granularities

Different systems use different granularity in counting time.

Even the so-called “Unix Time” varies, with some systems counting whole seconds and some counting milliseconds. Many database such as Postgres use microseconds. Some, such as the modern java.time framework in Java 8 and later, use nanoseconds. Some use still other granularities.

ISO 8601

Because there is so much variance in the use of an epoch reference and in the granularities, it is generally best to avoid communicating moments as a count-from-epoch. Between the ambiguity of epoch & granularity, plus the inability of humans to perceive meaningful values (and therefore miss buggy values), use plain text instead of numbers.

The ISO 8601 standard provides an extensive set of practical well-designed formats for expressing date-time values as text. These formats are easy to parse by machine as well as easy to read by humans across cultures.

These include:

• Date-only: 2019-01-23
• Moment in UTC: 2019-01-23T12:34:56.123456Z
• Moment with offset-from-UTC: 2019-01-23T18:04:56.123456+05:30
• Week of week-based-year: 2019-W23
• Ordinal date (1st to 366th day of year): 2019-234

If you are starting with something that has a .Length or .Count (such as ICollection<T>, IList<T>, List<T>, etc) - then this will be the fastest option, since it doesn't need to go through the GetEnumerator()/MoveNext()/Dispose() sequence required by Any() to check for a non-empty IEnumerable<T> sequence.

For just IEnumerable<T>, then Any() will generally be quicker, as it only has to look at one iteration. However, note that the LINQ-to-Objects implementation of Count() does check for ICollection<T> (using .Count as an optimisation) - so if your underlying data-source is directly a list/collection, there won't be a huge difference. Don't ask me why it doesn't use the non-generic ICollection...

Of course, if you have used LINQ to filter it etc (Where etc), you will have an iterator-block based sequence, and so this ICollection<T> optimisation is useless.

In general with IEnumerable<T> : stick with Any() ;-p

If you are requesting only page data, then you can use a page access token. You will only have to authorize the user once to get the user access token; extend it to two months validity then request the token for the page. This is all explained in Scenario 5. Note, that the acquired page access token is only valid for as long as the user access token is valid.

XAMPP comes preloaded with the FileZilla FTP server. Here is how to setup the service, and create an account.

1. Enable the FileZilla FTP Service through the XAMPP Control Panel to make it startup automatically (check the checkbox next to filezilla to install the service). Then manually start the service.

2. Create an ftp account through the FileZilla Server Interface (its the essentially the filezilla control panel). There is a link to it Start Menu in XAMPP folder. Then go to Users->Add User->Stuff->Done.

3. Try connecting to the server (localhost, port 21).

I found interest answer for compare performance String vs StringBuffer by Reggie Hutcherso Source: http://www.javaworld.com/javaworld/jw-03-2000/jw-0324-javaperf.html

Java provides the StringBuffer and String classes, and the String class is used to manipulate character strings that cannot be changed. Simply stated, objects of type String are read only and immutable. The StringBuffer class is used to represent characters that can be modified.

The significant performance difference between these two classes is that StringBuffer is faster than String when performing simple concatenations. In String manipulation code, character strings are routinely concatenated. Using the String class, concatenations are typically performed as follows:

 String str = new String ("Stanford  ");
 str += "Lost!!";

If you were to use StringBuffer to perform the same concatenation, you would need code that looks like this:

 StringBuffer str = new StringBuffer ("Stanford ");
 str.append("Lost!!");

Developers usually assume that the first example above is more efficient because they think that the second example, which uses the append method for concatenation, is more costly than the first example, which uses the + operator to concatenate two String objects.

The + operator appears innocent, but the code generated produces some surprises. Using a StringBuffer for concatenation can in fact produce code that is significantly faster than using a String. To discover why this is the case, we must examine the generated bytecode from our two examples. The bytecode for the example using String looks like this:

0 new #7 <Class java.lang.String>
3 dup 
4 ldc #2 <String "Stanford ">
6 invokespecial #12 <Method java.lang.String(java.lang.String)>
9 astore_1
10 new #8 <Class java.lang.StringBuffer>
13 dup
14 aload_1
15 invokestatic #23 <Method java.lang.String valueOf(java.lang.Object)>
18 invokespecial #13 <Method java.lang.StringBuffer(java.lang.String)>
21 ldc #1 <String "Lost!!">
23 invokevirtual #15 <Method java.lang.StringBuffer append(java.lang.String)>
26 invokevirtual #22 <Method java.lang.String toString()>
29 astore_1

The bytecode at locations 0 through 9 is executed for the first line of code, namely:

 String str = new String("Stanford ");

Then, the bytecode at location 10 through 29 is executed for the concatenation:

 str += "Lost!!";

Things get interesting here. The bytecode generated for the concatenation creates a StringBuffer object, then invokes its append method: the temporary StringBuffer object is created at location 10, and its append method is called at location 23. Because the String class is immutable, a StringBuffer must be used for concatenation.

After the concatenation is performed on the StringBuffer object, it must be converted back into a String. This is done with the call to the toString method at location 26. This method creates a new String object from the temporary StringBuffer object. The creation of this temporary StringBuffer object and its subsequent conversion back into a String object are very expensive.

In summary, the two lines of code above result in the creation of three objects:

1. A String object at location 0
2. A StringBuffer object at location 10
3. A String object at location 26

Now, let's look at the bytecode generated for the example using StringBuffer:

0 new #8 <Class java.lang.StringBuffer>
3 dup
4 ldc #2 <String "Stanford ">
6 invokespecial #13 <Method java.lang.StringBuffer(java.lang.String)>
9 astore_1
10 aload_1 
11 ldc #1 <String "Lost!!">
13 invokevirtual #15 <Method java.lang.StringBuffer append(java.lang.String)>
16 pop

The bytecode at locations 0 to 9 is executed for the first line of code:

 StringBuffer str = new StringBuffer("Stanford ");

The bytecode at location 10 to 16 is then executed for the concatenation:

 str.append("Lost!!");

Notice that, as is the case in the first example, this code invokes the append method of a StringBuffer object. Unlike the first example, however, there is no need to create a temporary StringBuffer and then convert it into a String object. This code creates only one object, the StringBuffer, at location 0.

In conclusion, StringBuffer concatenation is significantly faster than String concatenation. Obviously, StringBuffers should be used in this type of operation when possible. If the functionality of the String class is desired, consider using a StringBuffer for concatenation and then performing one conversion to String.

Your log indicates ClientAbortException, which occurs when your HTTP client drops the connection with the server and this happened before server could close the server socket Connection.

just cast the field as char

Eg: cast(updatedate) as char as updatedate

On Windows platform, it is also possible to capture localhost traffic using Wireshark. What you need to do is to install the Microsoft loopback adapter, and then sniff on it.

using(var tw = new StreamWriter(path, File.Exists(path)))
{
    tw.WriteLine(message);
}

You could target all text boxes with input[type=text] and then explicitly define the class for the textboxes who need it.

You can code like below :

input[type=text] {_x000D_
  padding: 0;_x000D_
  height: 30px;_x000D_
  position: relative;_x000D_
  left: 0;_x000D_
  outline: none;_x000D_
  border: 1px solid #cdcdcd;_x000D_
  border-color: rgba(0, 0, 0, .15);_x000D_
  background-color: white;_x000D_
  font-size: 16px;_x000D_
}_x000D_
_x000D_
.advancedSearchTextbox {_x000D_
  width: 526px;_x000D_
  margin-right: -4px;_x000D_
}

<input type="text" class="advancedSearchTextBox" />

I think you're looking for: SELECT a, b, COUNT(a) FROM tbl GROUP BY a, b

A newer version example is here.

Below is a copy of the original code:

/*
 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */
package org.apache.http.examples.entity.mime;

import java.io.File;

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

/**
 * Example how to use multipart/form encoded POST request.
 */
public class ClientMultipartFormPost {

    public static void main(String[] args) throws Exception {
        if (args.length != 1)  {
            System.out.println("File path not given");
            System.exit(1);
        }
        CloseableHttpClient httpclient = HttpClients.createDefault();
        try {
            HttpPost httppost = new HttpPost("http://localhost:8080" +
                    "/servlets-examples/servlet/RequestInfoExample");

            FileBody bin = new FileBody(new File(args[0]));
            StringBody comment = new StringBody("A binary file of some kind", ContentType.TEXT_PLAIN);

            HttpEntity reqEntity = MultipartEntityBuilder.create()
                    .addPart("bin", bin)
                    .addPart("comment", comment)
                    .build();


            httppost.setEntity(reqEntity);

            System.out.println("executing request " + httppost.getRequestLine());
            CloseableHttpResponse response = httpclient.execute(httppost);
            try {
                System.out.println("----------------------------------------");
                System.out.println(response.getStatusLine());
                HttpEntity resEntity = response.getEntity();
                if (resEntity != null) {
                    System.out.println("Response content length: " + resEntity.getContentLength());
                }
                EntityUtils.consume(resEntity);
            } finally {
                response.close();
            }
        } finally {
            httpclient.close();
        }
    }

}

If you just want the first number to match you can do it like this:

[item for item in a if item[0] == 1]

If you are just searching for tuples with 1 in them:

[item for item in a if 1 in item]