No problem. You're running your code under the debugger, and the debugger is telling you that it doesn't have debugging information for the system libraries.

If you really need that (usually for stack traces), you can download it from Microsoft's symbol servers, but for now you don't need to worry.

Set the [Console]::OuputEncoding as encoding whatever you want, and print out with [Console]::WriteLine.

If powershell ouput method has a problem, then don't use it. It feels bit bad, but works like a charm :)

In my case this error appeared when I asigned to both dynamic created controls (combobox), same created control from other class.

//dynamic created controls
ComboBox combobox1 = ManagerControls.myCombobox1;
...some events

ComboBox combobox2 = ManagerControl.myComboBox2;
...some events

.

//method in constructor
public static void InitializeDynamicControls()
{
     ComboBox cb = new ComboBox();
     cb.Background = new SolidColorBrush(Colors.Blue);
     ...
     cb.Width = 100;
     cb.Text = "Select window";
        
     ManagerControls.myCombobox1 = cb;
     ManagerControls.myComboBox2 = cb; // <-- error here
}

Solution: create another ComboBox cb2 and assign it to ManagerControls.myComboBox2.

I hope I helped someone.

If this happens in visual studio then clean your project and run it again.

Build --> Clean Solution

Run (or F5)

Check the VC++ directories, in VS 2010 these can be found in your project properties. Check whether $(WindowsSdkDir)\lib is included in the directories list, if not, manually add it. If you're building for X64 platform, you should select X64 from the “Platform” ComboBox, and make sure that $(WindowsSdkDir)\lib\x64 is included in the directories list.

This can also happen if you don't have Modify permissions on the symbol cache directory configured in Tools, Options, Debugging, Symbols.

The full list is:

DB, DW, DD, DQ, DT, DDQ, and DO (used to declare initialized data in the output file.)

See: http://www.tortall.net/projects/yasm/manual/html/nasm-pseudop.html

They can be invoked in a wide range of ways: (Note: for Visual-Studio - use "h" instead of "0x" syntax - eg: not 0x55 but 55h instead):

    db      0x55                ; just the byte 0x55
    db      0x55,0x56,0x57      ; three bytes in succession
    db      'a',0x55            ; character constants are OK
    db      'hello',13,10,'$'   ; so are string constants
    dw      0x1234              ; 0x34 0x12
    dw      'A'                 ; 0x41 0x00 (it's just a number)
    dw      'AB'                ; 0x41 0x42 (character constant)
    dw      'ABC'               ; 0x41 0x42 0x43 0x00 (string)
    dd      0x12345678          ; 0x78 0x56 0x34 0x12
    dq      0x1122334455667788  ; 0x88 0x77 0x66 0x55 0x44 0x33 0x22 0x11
    ddq     0x112233445566778899aabbccddeeff00
    ; 0x00 0xff 0xee 0xdd 0xcc 0xbb 0xaa 0x99
    ; 0x88 0x77 0x66 0x55 0x44 0x33 0x22 0x11
    do      0x112233445566778899aabbccddeeff00 ; same as previous
    dd      1.234567e20         ; floating-point constant
    dq      1.234567e20         ; double-precision float
    dt      1.234567e20         ; extended-precision float

DT does not accept numeric constants as operands, and DDQ does not accept float constants as operands. Any size larger than DD does not accept strings as operands.

I make a little update on this issue, as I just had the same error today on an application which is linking against a static lib, after I migrated the old Visual 6 project to Visual Studio 2012.

In my case the error was that I mistakenly compiled the Release version of the static lib with /MDd instead of /MD, whereas the application is /MD in release. Setting the correct /MD in the static lib project solved the issue.

This is done in Project properties

• Select Configuration Properties / C C++ / Code Generation in the tree
• and the option Runtime Library set to the same on all your dependencies projects and application.

Since you are asking about .NET, you should change the parameter from Long to Integer. .NET's Integer is 32-bit. (Classic VB's integer was only 16-bit.)

Declare Sub Sleep Lib "kernel32.dll" (ByVal Milliseconds As Integer)

Really though, the managed method isn't difficult...

System.Threading.Thread.CurrentThread.Sleep(5000)

Be careful when you do this. In a forms application, you block the message pump and what not, making your program to appear to have hanged. Rarely is sleep a good idea.

I'm pretty sure those are warnings, not errors. Your project should still run just fine.

However, since you should always try to fix compiler warnings, let's see what we can discover. I'm not at all familiar with OpenCV, and you don't link to the wiki tutorial that you're following. But it looks to me like the problem is that you're running a 64-bit version of Windows (as evidenced by the "SysWOW64" folder in the path to the DLL files), but the OpenCV stuff that you're trying is built for a 32-bit platform. So you might need to rebuild the project using CMake, as explained here.

More specifically, the files that are listed are Windows system files. PDB files contain debugging information that Visual Studio uses to allow you to step into and debug compiled code. You don't actually need the PDB files for system libraries to be able to debug your own code. But if you want, you can download the symbols for the system libraries as well. Go to the "Debug" menu, click on "Options and Settings", and scroll down the listbox on the right until you see "Enable source server support". Make sure that option is checked. Then, in the treeview to the left, click on "Symbols", and make sure that the "Microsoft Symbol Servers" option is selected. Click OK to dismiss the dialog, and then try rebuilding.

Pragma directives specify operating system or machine specific (x86 or x64 etc) compiler options. There are several options available. Details can be found in https://msdn.microsoft.com/en-us/library/d9x1s805.aspx

#pragma comment( comment-type [,"commentstring"] ) has this format.

Refer https://msdn.microsoft.com/en-us/library/7f0aews7.aspx for details about different comment-type.

#pragma comment(lib, "kernel32") #pragma comment(lib, "user32")

The above lines of code includes the library names (or path) that need to be searched by the linker. These details are included as part of the library-search record in the object file.

So, in this case kernel.lib and user32.lib are searched by the linker and included in the final executable.

While you are debugging in Visual Studio, display the "Output" window (View->Output). It will show there.

I feel like these answers were written for Python 2, and in any case nobody's made mention of the standard resource package that's available for Python 3. It provides commands for obtaining the resource limits of a given process (the calling Python process by default). This isn't the same as getting the current usage of resources by the system as a whole, but it could solve some of the same problems like e.g. "I want to make sure I only use X much RAM with this script."

SRCS=$(wildcard *.c)

OBJS=$(SRCS:.c=.o)

all: $(OBJS)

Here is example with only CSS for that. In example I'm using SASS and SLIM.

https://codepen.io/Darex1991/pen/zBxPxe

Slim:

a.btn.btn--joined-state
  span joined
  span leave

SASS:

=animate($property...)
  @each $vendor in ('-webkit-', '')
    #{$vendor}transition-property: $property
    #{$vendor}transition-duration: .3s
    #{$vendor}transition-timing-function: ease-in

=visible
  +animate(opacity, max-height, visibility)
  max-height: 150px
  opacity: 1
  visibility: visible

=invisible
  +animate(opacity, max-height, visibility)
  max-height: 0
  opacity: 0
  visibility: hidden

=transform($var)
  @each $vendor in ('-webkit-', '-ms-', '')
    #{$vendor}transform: $var

.btn
  border: 1px solid blue

  &--joined-state
    position: relative
    span
      +animate(opacity)

    span:last-of-type
      +invisible
      +transform(translateX(-50%))
      position: absolute
      left: 50%

    &:hover
      span:first-of-type
        +invisible
      span:last-of-type
        +visible
        border-color: blue

json_encode will always add slashes.

Check some examples on the manual HERE

This is because if there are some characters which needs to escaped then they will create problem.

To use the json please Parse your json to ensure that the slashes are removed

Well whether or not you remove slashesthe json will be parsed without any problem by eval.

<?php
$array = array('url'=>'http://mysite.com/uploads/gallery/7f/3b/f65ab8165d_logo.jpeg','id'=>54);
?>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script type="text/javascript">
var x = jQuery.parseJSON('<?php echo json_encode($array);?>');
alert(x);
</script>

This is my code and i m able to parse the JSON.

Check your code May be you are missing something while parsing the JSON

I think JavaScript performance (time) testing is quite enough. I found a very handy article about JavaScript performance testing here.

First I think there should be a afterShowing method in the datepicker object, where you could change the position after jquery has done all its voodoo in the _showDatepicker method. Additionally, a parameter called preferedPosition would be also desirable, so you could set it and jquery modify it in case the dialog is rendered outside the viewport.

There's a "trick" to do this last thing. If you study the _showDatepicker method, you will see the use of a private variable $.datepikcer._pos. That variable will be setup if nobody has set it up before. If you modify that variable before showing the dialog, Jquery will take it and will try to allocate the dialog in that position, and if it renders out of the screen, it will adjust it to make sure it is visible. Sounds good, eh?

Problem is; _pos is private, but if you don't mind that. You can:

$('input.date').datepicker({
    beforeShow: function(input, inst)
    {
        $.datepicker._pos = $.datepicker._findPos(input); //this is the default position
        $.datepicker._pos[0] = whatever; //left
        $.datepicker._pos[1] = whatever; //top
    }
});

But be careful of Jquery-ui updates, because a change in the internal implementation of the _showDatepicker might break your code.

You can add the TimeSpan to a DateTime, for example:

TimeSpan span = TimeSpan.FromHours(16);
DateTime time = DateTime.Today + span;
String result = time.ToString("hh:mm tt");

Demo: http://ideone.com/veJ6tT

04:00 PM

Standard Date and Time Format Strings

I wanted to share with you my solution to export a database with Microsoft SQL Server Management Studio.

To Export your database

1. Open a new request
2. Copy paste this script

DECLARE @BackupFile NVARCHAR(255);
SET @BackupFile = 'c:\database-backup_2020.07.22.bak';
PRINT @BackupFile;
BACKUP DATABASE [%databaseName%] TO DISK = @BackupFile;

Don't forget to replace %databaseName% with the name of the database you want to export.

Note that this method gives a lighter file than from the menu.

To import this file from SQL Server Management Studio. Don't forget to delete your database beforehand.

1. Click restore database

2. Add the backup file

3. Validate

Enjoy! :) :)

Yes, we can run docker in docker, we'll need to attach the unix sockeet "/var/run/docker.sock" on which the docker daemon listens by default as volume to the parent docker using "-v /var/run/docker.sock:/var/run/docker.sock". Sometimes, permissions issues may arise for docker daemon socket for which you can write "sudo chmod 757 /var/run/docker.sock".

And also it would require to run the docker in privileged mode, so the commands would be:

sudo chmod 757 /var/run/docker.sock

docker run --privileged=true -v /var/run/docker.sock:/var/run/docker.sock -it ...

you have to rename the column to an other name because TABLE is reserved by Oracle.

You can see all reserved words of Oracle in the oracle view V$RESERVED_WORDS.

@SafeVarargs does not prevent it from happening, however it mandates that the compiler is stricter when compiling code that uses it.

http://docs.oracle.com/javase/7/docs/api/java/lang/SafeVarargs.html explains this in futher detail.

Heap pollution is when you get a ClassCastException when doing an operation on a generic interface and it contains another type than declared.

You can do:

>>> a = 'ZENOVW'
>>> ''.join(sorted(a))
'ENOVWZ'

"better" is relative. It all depends on what your needs are. Docker compose is for orchestrating multiple containers. If these images already exist in the docker registry, then it's better to list them in the compose file. If these images or some other images have to be built from files on your computer, then you can describe the processes of building those images in a Dockerfile.

I understand that Dockerfiles are used in Docker Compose, but I am not sure if it is good practice to put everything in one large Dockerfile with multiple FROM commands for the different images?

Using multiple FROM in a single dockerfile is not a very good idea because there is a proposal to remove the feature. 13026

If for instance, you want to dockerize an application which uses a database and have the application files on your computer, you can use a compose file together with a dockerfile as follows

docker-compose.yml

mysql:
  image: mysql:5.7
  volumes:
    - ./db-data:/var/lib/mysql
  environment:
    - "MYSQL_ROOT_PASSWORD=secret"
    - "MYSQL_DATABASE=homestead"
    - "MYSQL_USER=homestead"
  ports:
    - "3307:3306"
app:
  build:
    context: ./path/to/Dockerfile
    dockerfile: Dockerfile
  volumes:
    - ./:/app
  working_dir: /app
      

Dockerfile

FROM php:7.1-fpm 
RUN apt-get update && apt-get install -y libmcrypt-dev \
  mysql-client libmagickwand-dev --no-install-recommends \
  && pecl install imagick \
  && docker-php-ext-enable imagick \
  && docker-php-ext-install pdo_mysql \
  && curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

Not unless you make all variables "public", i.e. make them members of the Function either directly or through the prototype property.

var C = function( ) {
    this.x = 10 , this.y = 20 ;
    this.modify = function( ) {
        this.x = 30 , this.y = 40 ;
        console.log("(!) C >> " + (this.x + this.y) ) ;
    } ;
} ;

var A = function( ) {
    this.modify = function( ) {
       this.x = 300 , this.y = 400 ;
       console.log("(!) A >> " + (this.x + this.y) ) ;
    } ;
} ;
    A.prototype = new C ;

var B = function( ) {
    this.modify = function( ) {
       this.x = 3000 , this.y = 4000 ;
       console.log("(!) B >> " + (this.x + this.y) ) ;
    } ;
} ;


new C( ).modify( ) ;
new A( ).modify( ) ;
new B( ).modify( ) ; 

• test it here

You will notice a few changes.

Most importantly the call to the supposed "super-classes" constructor is now implicit within this line:

<name>.prototype = new C ;

Both A and B will now have individually modifiable members x and y which would not be the case if we would have written ... = C instead.

Then, x, y and modify are all "public" members so that assigning a different Function to them

 <name>.prototype.modify = function( ) { /* ... */ }

will "override" the original Function by that name.

Lastly, the call to modify cannot be done in the Function declaration because the implicit call to the "super-class" would then be executed again when we set the supposed "super-class" to the prototype property of the supposed "sub-classes".

But well, this is more or less how you would do this kind of thing in JavaScript.

HTH,

FK

You can check in all the below ways for a List

List<string> FilteredList = new List<string>();
//Comparing the two lists and gettings common elements.
FilteredList = a1.Intersect(a2, StringComparer.OrdinalIgnoreCase);

Here is a jQuery solution that I'm using.

jQuery

$("#slideshow button").click(function(){
    var val = $(this).val();
    console.log(val);
});

HTML

<div id="slideshow">
    <img src="image1.jpg">
    <button class="left" value="back">&#10094;</button>
    <button class="right" value="next">&#10095;</button>
</div>

I would like to share my experience with \n
I came to notice that "\n" works as-

puts "\n\n" // to provide 2 new lines

but not

p "\n\n"

also puts '\n\n'
Doesn't works.

Hope will work for you!!

Define the following function (not mine, not sure where I found it long ago):

private static String convertStreamToString(InputStream is) {

BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();

String line = null;
try {
    while ((line = reader.readLine()) != null) {
        sb.append(line + "\n");
    }
} catch (IOException e) {
    e.printStackTrace();
} finally {
    try {
        is.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}
return sb.toString();

}

Then:

String jsonReply;
if(conn.getResponseCode()==201 || conn.getResponseCode()==200)
    {
        success = true;
        InputStream response = conn.getInputStream();
        jsonReply = convertStreamToString(response);

        // Do JSON handling here....
    }

if(!System.IO.Directory.Exists(@"c:\mp_upload"))
{
     System.IO.Directory.CreateDirectory(@"c:\mp_upload");
}

Simplest of All Solutions:

Use:

filtered_df = df[(df['col1'] >= 1) & (df['col1'] <= 5)]

Another Example, To filter the dataframe for values belonging to Feb-2018, use the below code

filtered_df = df[(df['year'] == 2018) & (df['month'] == 2)]

You can do same thing using single query

SELECT sum(if(DATE(dDate)=DATE(CURRENT_TIMESTAMP),earning,null)) astodays,
       sum(if(YEARWEEK(dDate)=YEARWEEK(CURRENT_DATE),earning,null)) as weeks, 
       IF((MONTH(dDate) = MONTH(CURRENT_TIMESTAMP()) AND YEAR(dDate) = YEAR(CURRENT_TIMESTAMP())),sum(earning),0) AS months,
       IF(YEAR(dDate) = YEAR(CURRENT_TIMESTAMP()),sum(earning),0) AS years, 
       sum(fAdminFinalEarning) as total_earning FROM `earning`

Hope this works.

Please also see this Microsoft Connect report on essentially, how blummin' difficult it is to use PowerShell to run shell commands (oh, the irony).

http://connect.microsoft.com/PowerShell/feedback/details/376207/

They suggest using --% as a way to force PowerShell to stop trying to interpret the text to the right.

For example:

MSBuild /t:Publish --% /p:TargetDatabaseName="MyDatabase";TargetConnectionString="Data Source=.\;Integrated Security=True" /p:SqlPublishProfilePath="Deploy.publish.xml" Database.sqlproj

The NoReverseMatch error is saying that Django cannot find a matching url pattern for the url you've provided in any of your installed app's urls.

The NoReverseMatch exception is raised by django.core.urlresolvers when a matching URL in your URLconf cannot be identified based on the parameters supplied.

To start debugging it, you need to start by disecting the error message given to you.

• NoReverseMatch at /my_url/

  This is the url that is currently being rendered, it is this url that your application is currently trying to access but it contains a url that cannot be matched

• Reverse for 'my_url_name'

  This is the name of the url that it cannot find

• with arguments '()' and

  These are the non-keyword arguments its providing to the url

• keyword arguments '{}' not found.

  These are the keyword arguments its providing to the url

• n pattern(s) tried: []

  These are the patterns that it was able to find in your urls.py files that it tried to match against

Start by locating the code in your source relevant to the url that is currently being rendered - the url, the view, and any templates involved. In most cases, this will be the part of the code you're currently developing.

Once you've done this, read through the code in the order that django would be following until you reach the line of code that is trying to construct a url for your my_url_name. Again, this is probably in a place you've recently changed.

Now that you've discovered where the error is occuring, use the other parts of the error message to work out the issue.

The url name

• Are there any typos?
• Have you provided the url you're trying to access the given name?
• If you have set app_name in the app's urls.py (e.g. app_name = 'my_app') or if you included the app with a namespace (e.g. include('myapp.urls', namespace='myapp'), then you need to include the namespace when reversing, e.g. {% url 'myapp:my_url_name' %} or reverse('myapp:my_url_name').

Arguments and Keyword Arguments

The arguments and keyword arguments are used to match against any capture groups that are present within the given url which can be identified by the surrounding () brackets in the url pattern.

Assuming the url you're matching requires additional arguments, take a look in the error message and first take a look if the value for the given arguments look to be correct.

If they aren't correct:

• The value is missing or an empty string

  This generally means that the value you're passing in doesn't contain the value you expect it to be. Take a look where you assign the value for it, set breakpoints, and you'll need to figure out why this value doesn't get passed through correctly.

• The keyword argument has a typo

  Correct this either in the url pattern, or in the url you're constructing.

If they are correct:

• Debug the regex

  You can use a website such as regexr to quickly test whether your pattern matches the url you think you're creating, Copy the url pattern into the regex field at the top, and then use the text area to include any urls that you think it should match against.

  Common Mistakes:

  • Matching against the . wild card character or any other regex characters

    Remember to escape the specific characters with a \ prefix

  • Only matching against lower/upper case characters

    Try using either a-Z or \w instead of a-z or A-Z

• Check that pattern you're matching is included within the patterns tried

  If it isn't here then its possible that you have forgotten to include your app within the INSTALLED_APPS setting (or the ordering of the apps within INSTALLED_APPS may need looking at)

Django Version

In Django 1.10, the ability to reverse a url by its python path was removed. The named path should be used instead.

If you're still unable to track down the problem, then feel free to ask a new question that includes what you've tried, what you've researched (You can link to this question), and then include the relevant code to the issue - the url that you're matching, any relevant url patterns, the part of the error message that shows what django tried to match, and possibly the INSTALLED_APPS setting if applicable.

It's not difficult as we thing. Just create a frame for UIButton with clear background color, assign action for the button and place over the navigationbar back button. And finally remove the button after use.

Here is the Swift 3 sample code done with UIImage instead of UIButton

override func viewDidLoad() {
    super.viewDidLoad()
    let imageView = UIImageView()
    imageView.backgroundColor = UIColor.clear
    imageView.frame = CGRect(x:0,y:0,width:2*(self.navigationController?.navigationBar.bounds.height)!,height:(self.navigationController?.navigationBar.bounds.height)!)
    let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(back(sender:)))
    imageView.isUserInteractionEnabled = true
    imageView.addGestureRecognizer(tapGestureRecognizer)
    imageView.tag = 1
    self.navigationController?.navigationBar.addSubview(imageView)
    }

write the code need to be executed

func back(sender: UIBarButtonItem) {

    // Perform your custom actions}
    _ = self.navigationController?.popViewController(animated: true)

    }

Remove the subView after action is performed

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)

    for view in (self.navigationController?.navigationBar.subviews)!{
        if view.tag == 1 {
            view.removeFromSuperview()
        }
    }

You can set triangle with position see this code for reference

.top-left-corner {
    width: 0px;
    height: 0px;
    border-top: 0px solid transparent;
    border-bottom: 55px solid transparent;
    border-left: 55px solid #289006;
    position: absolute;
    left: 0px;
    top: 0px;
}

this worked for me:-

<?php echo '<pre>' . print_r($_SESSION, TRUE) . '</pre>'; ?>

thanks for sharing code...

Array
(    
    [__ci_last_regenerate] => 1490879962

    [user_id] => 3

    [designation_name] => Admin
    [region_name] => admin
    [territory_name] => admin
    [designation_id] => 2
    [region_id] => 1
    [territory_id] => 1
    [employee_user_id] => mosin11
)

See http://php.net/date

date('m') or date('n') or date('F') ...

Update

m Numeric representation of a month, with leading zeros 01 through 12

n Numeric representation of a month, without leading zeros 1 through 12

F Alphabetic representation of a month January through December

....see the docs link for even more options.

items[node.ind] = items[node.ind]._replace(v=node.v)

(Note: Don't be discouraged to use this solution because of the leading underscore in the function _replace. Specifically for namedtuple some functions have leading underscore which is not for indicating they are meant to be "private")

It's recommended not to use the <Button> tag. Use the <Input type='Button' onclick='return false;'> tag instead. (Using the "return false" should indeed not send the form.)

Some reference material

If it helps, I was using centrifuge with my reactjs app, and, after checking some comments below, I looked at the centrifuge.js library file, which in my version, had the following code snippet:

if ('withCredentials' in xhr) {
 xhr.withCredentials = true;
}

After I removed these three lines, the app worked fine, as expected.

Hope it helps!

del parentpath (or just place the .bat file inside parent folder) *.txt /s

That will delete all .txt files in the parent and all sub folders. If you want to delete multiple file extensions just add a space and do the same thing. Ex. *.txt *.dll *.xml

it work for me:

pip install scrapy --user -U

^ = (bitwise XOR)

Description

Binary XOR Operator copies the bit if it is set in one operand but not both.

example

(A ^ B) will give 49 which is 0011 0001

Or you can just initialize inline in the controller. If you use an init function internal to the controller, it doesn't need to be defined in the scope. In fact, it can be self executing:

function MyCtrl($scope) {
    $scope.isSaving = false;

    (function() {  // init
        if (true) { // $routeParams.Id) {
            //get an existing object
        } else {
            //create a new object
        }
    })()

    $scope.isClean = function () {
       return $scope.hasChanges() && !$scope.isSaving;
    }

    $scope.hasChanges = function() { return false }
}

Example Project

I finally got a proof-of-concept project to work, so I will share it here.

Set up the layout

The layout is set up like this, where the light grey area is the VideoView.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.videotest.MainActivity">

    <VideoView
        android:id="@+id/videoview"
        android:layout_width="300dp"
        android:layout_height="200dp"/>

    <Button
        android:text="Play"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/videoview"
        android:onClick="onButtonClick"
        android:id="@+id/button"/>

</RelativeLayout>

Prepare video clip

According to the documentation, Android should support mp4 H.264 playback (decoding) for all API levels. However, there seem to be a lot of factors that affect whether an actual video will play or not. The most in depth answer I could find that told how to encode the videos is here. It uses the powerful ffmpeg command line tool to do the conversion to something that should be playable on all (hopefully?) Android devices. Read the answer I linked to for more explanation. I used a slightly modified version because I was getting errors with the original version.

ffmpeg -y -i input_file.avi -s 432x320 -b:v 384k -vcodec libx264 -flags +loop+mv4 -cmp 256 -partitions +parti4x4+parti8x8+partp4x4+partp8x8 -subq 6 -trellis 0 -refs 5 -bf 0 -coder 0 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -qmin 10 -qmax 51 -qdiff 4 -c:a aac -ac 1 -ar 16000 -r 13 -ab 32000 -aspect 3:2 -strict -2 output_file.mp4

I would definitely read up a lot more on each of those parameters to see which need adjusting as far as video and audio quality go.

Next, rename output_file.mp4 to test.mp4 and put it in your Android project's /res/raw folder. Create the folder if it doesn't exist already.

Code

There is not much to the code. The video plays when the "Play" button is clicked. Thanks to this answer for help.

MainActivity.java

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void onButtonClick(View v) {
        VideoView videoview = (VideoView) findViewById(R.id.videoview);
        Uri uri = Uri.parse("android.resource://"+getPackageName()+"/"+R.raw.test);
        videoview.setVideoURI(uri);
        videoview.start();
    }
}

Finished

That's all. You should be able play your video clip on the simulator or a real device now.

the simplest way what I found from a tutorial of "TraversyMedia" is that just use https://cors-anywhere.herokuapp.com in 'axios' or 'fetch' api

https://cors-anywhere.herokuapp.com/{type_your_url_here} 

e.g.

axios.get(`https://cors-anywhere.herokuapp.com/https://www.api.com/`)

and in your case edit url as

url: 'https://cors-anywhere.herokuapp.com/https://www.api.com',

byte[] foo = new byte[4096]; 

byte[] bar = foo.Take(40).ToArray();

Try to run npm run dev in powershell. This worked for me.

The reference implementation includes a fluent interface. Check out JSONWriter and its toString-implementing subclass JSONStringer

I think the question is incomplete. if you meant that you wish to get the type information of some typeclass then below:

If you wish to print as you have specified then:

scala>  def manOf[T: Manifest](t: T): Manifest[T] = manifest[T]
manOf: [T](t: T)(implicit evidence$1: Manifest[T])Manifest[T]

scala> val x = List(1,2,3)
x: List[Int] = List(1, 2, 3)

scala> println(manOf(x))
scala.collection.immutable.List[Int]

If you are in repl mode then

scala> :type List(1,2,3)
List[Int]

Or if you just wish to know what the class type then as @monkjack explains "string".getClass might solve the purpose

Huffman coding generally works okay for this.

With SQL Server 2016 we can use string_split to accomplish this:

create table commasep (
 id int identity(1,1)
 ,string nvarchar(100) )

insert into commasep (string) values ('John, Adam'), ('test1,test2,test3')

select id, [value] as String from commasep 
 cross apply string_split(string,',')

This is actually a multi-step process. First you'll need to add all your files to the current stage:

git add .

You can verify that your files will be added when you commit by checking the status of the current stage:

git status

The console should display a message that lists all of the files that are currently staged, like this:

# On branch master
#
# Initial commit
#
# Changes to be committed:
#   (use "git rm --cached <file>..." to unstage)
#
#   new file:   README
#   new file:   src/somefile.js
#

If it all looks good then you're ready to commit. Note that the commit action only commits to your local repository.

git commit -m "some message goes here"

If you haven't connected your local repository to a remote one yet, you'll have to do that now. Assuming your remote repository is hosted on GitHub and named "Some-Awesome-Project", your command is going to look something like this:

git remote add origin [email protected]:username/Some-Awesome-Project

It's a bit confusing, but by convention we refer to the remote repository as 'origin' and the initial local repository as 'master'. When you're ready to push your commits to the remote repository (origin), you'll need to use the 'push' command:

git push origin master

For more information check out the tutorial on GitHub: http://learn.github.com/p/intro.html

Is this role attribute necessary?

Answer: Yes.

• The role attribute is necessary to support Accessible Rich Internet Applications (WAI-ARIA) to define roles in XML-based languages, when the languages do not define their own role attribute.
• Although this is the reason the role attribute is published by the Protocols and Formats Working Group, the attribute has more general use cases as well.

It provides you:

• Accessibility
• Device adaptation
• Server-side processing
• Complex data description,...etc.

datetime.datetime.fromtimestamp() is correct, except you are probably having timestamp in miliseconds (like in JavaScript), but fromtimestamp() expects Unix timestamp, in seconds.

Do it like that:

>>> import datetime
>>> your_timestamp = 1331856000000
>>> date = datetime.datetime.fromtimestamp(your_timestamp / 1e3)

and the result is:

>>> date
datetime.datetime(2012, 3, 16, 1, 0)

Does it answer your question?

EDIT: J.F. Sebastian correctly suggested to use true division by 1e3 (float 1000). The difference is significant, if you would like to get precise results, thus I changed my answer. The difference results from the default behaviour of Python 2.x, which always returns int when dividing (using / operator) int by int (this is called floor division). By replacing the divisor 1000 (being an int) with the 1e3 divisor (being representation of 1000 as float) or with float(1000) (or 1000. etc.), the division becomes true division. Python 2.x returns float when dividing int by float, float by int, float by float etc. And when there is some fractional part in the timestamp passed to fromtimestamp() method, this method's result also contains information about that fractional part (as the number of microseconds).

\path-to-your-android-sdk-folder\platforms\android-xx\data\res

This solution also works for Honeycomb and Ice Cream Sandwich. Seems like Google introduced a cool new feature (accept attribute) and forgot to to implement an overload for backwards compatibility.

protected class CustomWebChromeClient extends WebChromeClient
{
    // For Android 3.0+
    public void openFileChooser( ValueCallback<Uri> uploadMsg, String acceptType ) 
    {  
        context.mUploadMessage = uploadMsg;  
        Intent i = new Intent(Intent.ACTION_GET_CONTENT);  
        i.addCategory(Intent.CATEGORY_OPENABLE);  
        i.setType("image/*");  
        context.startActivityForResult( Intent.createChooser( i, "File Chooser" ), MainActivity.FILECHOOSER_RESULTCODE );  
    }

    // For Android < 3.0
    public void openFileChooser( ValueCallback<Uri> uploadMsg ) 
    {
        openFileChooser( uploadMsg, "" );
    }
}

Apparently, your project is targeting Windows Phone 7.0. Unfortunately the constructors that accept IEnumerable<T> or List<T> are not available in WP 7.0, only the parameterless constructor. The other constructors are available in Silverlight 4 and above and WP 7.1 and above, just not in WP 7.0.

I guess your only option is to take your list and add the items into a new instance of an ObservableCollection individually as there are no readily available methods to add them in bulk. Though that's not to stop you from putting this into an extension or static method yourself.

var list = new List<SomeType> { /* ... */ };
var oc = new ObservableCollection<SomeType>();
foreach (var item in list)
    oc.Add(item);

But don't do this if you don't have to, if you're targeting framework that provides the overloads, then use them.

What about element.tagName?

See also tagName docs on MDN.

This error was also showing in my project. I tried all the proposed solutions posted here, but no luck at all because the problem had nothing to do with fields size, table key fields definition, constraints or the EnforceConstraints dataset variable.

In my case I also have a .xsd object which I put there during the project design time (the Data Access Layer). As you drag your database table objects into the Dataset visual item, it reads each table definition from the underlying database and copies the constraints into the Dataset object exactly as you defined them when you created the tables in your database (SQL Server 2008 R2 in my case). This means that every table column created with the constraint of "not null" or "foreign key" must also be present in the result of your SQL statement or stored procedure.

After I included all the key columns and the columns defined as "not null" into my queries the problem disappeared completely.

With transforms being more ubiquitously supported these days, you can do this without knowing the width/height of the popup

.popup {
    position: fixed;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

Easy! JSFiddle here: http://jsfiddle.net/LgSZV/

Update: Check out https://css-tricks.com/centering-css-complete-guide/ for a fairly exhaustive guide on CSS centering. Adding it to this answer as it seems to get a lot of eyeballs.

This answer was a little more detailed than I thought but read it through.

DLL:
In most cases, a DLL file is a library. There are a couple of types of libraries, dynamic and static - read about the difference. DLL stands for dynamic link library which tells us that it's a part of the program but not the whole thing. It's made of reusable software components (library) which you could use for more than a single program. Bear in mind that it's always possible to use the library source code in many applications using copy-paste, but the idea of a DLL/Static Library is that you could update the code of a library and at the same time update all the applications using it - without compiling.

For example:
Imagine you're creating a Windows GUI component like a Button. In most cases you'd want to re-use the code you've written because it's a complex but a common component - You want many applications to use it but you don't want to give them the source code You can't copy-paste the code for the button in every program, so you decide you want to create a DL-Library (DLL).

This "button" library is required by EXEcutables to run, and without it they will not run because they don't know how to create the button, only how to talk to it.

Likewise, a DLL cannot be executed - run, because it's only a part of the program but doesn't have the information required to create a "process".

EXE:
An executable is the program. It knows how to create a process and how to talk to the DLL. It needs the DLL to create a button, and without it the application doesn't run - ERROR.

hope this helps....

May be by:-

    for(Row row : sheet) {          
        for(Cell cell : row) {              
            System.out.print(cell.getStringCellValue());

        }
    }       

For specific type of cell you can try:

switch (cell.getCellType()) {
case Cell.CELL_TYPE_STRING:
    cellValue = cell.getStringCellValue();
    break;

case Cell.CELL_TYPE_FORMULA:
    cellValue = cell.getCellFormula();
    break;

case Cell.CELL_TYPE_NUMERIC:
    if (DateUtil.isCellDateFormatted(cell)) {
        cellValue = cell.getDateCellValue().toString();
    } else {
        cellValue = Double.toString(cell.getNumericCellValue());
    }
    break;

case Cell.CELL_TYPE_BLANK:
    cellValue = "";
    break;

case Cell.CELL_TYPE_BOOLEAN:
    cellValue = Boolean.toString(cell.getBooleanCellValue());
    break;

}

Try resetting your network settings

Settings -> General -> Reset -> Reset Network Settings

And try deleting the contents of your mac/pc lockdown folder. Here's the link, follow the steps on "Reset the Lockdown folder".

http://support.apple.com/kb/ts2529

This one worked for me.

Because ... it (MILLISECONDS) is a static field (hiding in an enumeration, but that's what it is) ... however it is being invoked upon an instance of the given type (but see below as this isn't really true¹).

javac will "accept" that, but it should really be MyUnits.MILLISECONDS (or non-prefixed in the applicable scope).

¹ Actually, javac "rewrites" the code to the preferred form -- if m happened to be null it would not throw an NPE at run-time -- it is never actually invoked upon the instance).

Happy coding.

I'm not really seeing how the question title fits in with the rest :-) More accurate and specialized titles increase the likely hood the question/answers can benefit other programmers.

$files = [
    './first.jpg',
    './second.jpg',
    './third.jpg'
];

foreach ($files as $file) {
    if (file_exists($file)) {
        unlink($file);
    } else {
        // File not found.
    }
}

For AAPT2 error: check logs for details or error: failed linking file resources. errors:

Check your .xml files that contains android:background="" and remove this empty attribute can solve your problem.

To enable Zombie logging double-click the executable in the executables group of your Xcode project. At this point click the Arguments tab and in the Variables to be set in the environment: section, make a variable called NSZombieEnabled and set its value to YES.

The title for the actionbar could be in the AndroidManifest, here:

<activity 
    . . .
          android:label="string resource" 
    . . .
</activity>

android:label A user-readable label for the activity. The label is displayed on-screen when the activity must be represented to the user. It's often displayed along with the activity icon. If this attribute is not set, the label set for the application as a whole is used instead (see the element's label attribute). The activity's label — whether set here or by the element — is also the default label for all the activity's intent filters (see the element's label attribute). The label should be set as a reference to a string resource, so that it can be localized like other strings in the user interface. However, as a convenience while you're developing the application, it can also be set as a raw string.

If you are using paths, you will need to change back absolute paths to relative paths for it to work after compiling typescript into plain javascript using tsc.

Most popular solution for this has been tsconfig-paths so far.

I've tried it, but it did not work for me for my complicated setup. Also, it resolves paths in run-time, meaning overhead in terms of your package size and resolve performance.

So, I wrote a solution myself, tscpaths.

I'd say it's better overall because it replaces paths at compile-time. It means there is no runtime dependency or any performance overhead. It's pretty simple to use. You just need to add a line to your build scripts in package.json.

The project is pretty young, so there could be some issues if your setup is very complicated. It works flawlessly for my setup, though my setup is fairly complex.

In the old days, when we could assume that most computers used ASCII, we would just do

int i = c[0] - '0';

But in these days of Unicode, it's not a good idea. It was never a good idea if your code had to run on a non-ASCII computer.

Edit: Although it looks hackish, evidently it is guaranteed by the standard to work. Thanks @Earwicker.

This problem has bothered me for 15 years, and all the solutions supplied weren't satisfactory for me. How do you create a dynamic multidimensional array contiguously in memory? Today I finally found the answer. Using the following code, you can do just that:

#include <iostream>

int main(int argc, char** argv)
{
    if (argc != 3)
    {
        std::cerr << "You have to specify the two array dimensions" << std::endl;
        return -1;
    }

    int sizeX, sizeY;

    sizeX = std::stoi(argv[1]);
    sizeY = std::stoi(argv[2]);

    if (sizeX <= 0)
    {
        std::cerr << "Invalid dimension x" << std::endl;
        return -1;
    }
    if (sizeY <= 0)
    {
        std::cerr << "Invalid dimension y" << std::endl;
        return -1;
    }

    /******** Create a two dimensional dynamic array in continuous memory ******
     *
     * - Define the pointer holding the array
     * - Allocate memory for the array (linear)
     * - Allocate memory for the pointers inside the array
     * - Assign the pointers inside the array the corresponding addresses
     *   in the linear array
     **************************************************************************/

    // The resulting array
    unsigned int** array2d;

    // Linear memory allocation
    unsigned int* temp = new unsigned int[sizeX * sizeY];

    // These are the important steps:
    // Allocate the pointers inside the array,
    // which will be used to index the linear memory
    array2d = new unsigned int*[sizeY];

    // Let the pointers inside the array point to the correct memory addresses
    for (int i = 0; i < sizeY; ++i)
    {
        array2d[i] = (temp + i * sizeX);
    }



    // Fill the array with ascending numbers
    for (int y = 0; y < sizeY; ++y)
    {
        for (int x = 0; x < sizeX; ++x)
        {
            array2d[y][x] = x + y * sizeX;
        }
    }



    // Code for testing
    // Print the addresses
    for (int y = 0; y < sizeY; ++y)
    {
        for (int x = 0; x < sizeX; ++x)
        {
            std::cout << std::hex << &(array2d[y][x]) << ' ';
        }
    }
    std::cout << "\n\n";

    // Print the array
    for (int y = 0; y < sizeY; ++y)
    {
        std::cout << std::hex << &(array2d[y][0]) << std::dec;
        std::cout << ": ";
        for (int x = 0; x < sizeX; ++x)
        {
            std::cout << array2d[y][x] << ' ';
        }
        std::cout << std::endl;
    }



    // Free memory
    delete[] array2d[0];
    delete[] array2d;
    array2d = nullptr;

    return 0;
}

When you invoke the program with the values sizeX=20 and sizeY=15, the output will be the following:

0x603010 0x603014 0x603018 0x60301c 0x603020 0x603024 0x603028 0x60302c 0x603030 0x603034 0x603038 0x60303c 0x603040 0x603044 0x603048 0x60304c 0x603050 0x603054 0x603058 0x60305c 0x603060 0x603064 0x603068 0x60306c 0x603070 0x603074 0x603078 0x60307c 0x603080 0x603084 0x603088 0x60308c 0x603090 0x603094 0x603098 0x60309c 0x6030a0 0x6030a4 0x6030a8 0x6030ac 0x6030b0 0x6030b4 0x6030b8 0x6030bc 0x6030c0 0x6030c4 0x6030c8 0x6030cc 0x6030d0 0x6030d4 0x6030d8 0x6030dc 0x6030e0 0x6030e4 0x6030e8 0x6030ec 0x6030f0 0x6030f4 0x6030f8 0x6030fc 0x603100 0x603104 0x603108 0x60310c 0x603110 0x603114 0x603118 0x60311c 0x603120 0x603124 0x603128 0x60312c 0x603130 0x603134 0x603138 0x60313c 0x603140 0x603144 0x603148 0x60314c 0x603150 0x603154 0x603158 0x60315c 0x603160 0x603164 0x603168 0x60316c 0x603170 0x603174 0x603178 0x60317c 0x603180 0x603184 0x603188 0x60318c 0x603190 0x603194 0x603198 0x60319c 0x6031a0 0x6031a4 0x6031a8 0x6031ac 0x6031b0 0x6031b4 0x6031b8 0x6031bc 0x6031c0 0x6031c4 0x6031c8 0x6031cc 0x6031d0 0x6031d4 0x6031d8 0x6031dc 0x6031e0 0x6031e4 0x6031e8 0x6031ec 0x6031f0 0x6031f4 0x6031f8 0x6031fc 0x603200 0x603204 0x603208 0x60320c 0x603210 0x603214 0x603218 0x60321c 0x603220 0x603224 0x603228 0x60322c 0x603230 0x603234 0x603238 0x60323c 0x603240 0x603244 0x603248 0x60324c 0x603250 0x603254 0x603258 0x60325c 0x603260 0x603264 0x603268 0x60326c 0x603270 0x603274 0x603278 0x60327c 0x603280 0x603284 0x603288 0x60328c 0x603290 0x603294 0x603298 0x60329c 0x6032a0 0x6032a4 0x6032a8 0x6032ac 0x6032b0 0x6032b4 0x6032b8 0x6032bc 0x6032c0 0x6032c4 0x6032c8 0x6032cc 0x6032d0 0x6032d4 0x6032d8 0x6032dc 0x6032e0 0x6032e4 0x6032e8 0x6032ec 0x6032f0 0x6032f4 0x6032f8 0x6032fc 0x603300 0x603304 0x603308 0x60330c 0x603310 0x603314 0x603318 0x60331c 0x603320 0x603324 0x603328 0x60332c 0x603330 0x603334 0x603338 0x60333c 0x603340 0x603344 0x603348 0x60334c 0x603350 0x603354 0x603358 0x60335c 0x603360 0x603364 0x603368 0x60336c 0x603370 0x603374 0x603378 0x60337c 0x603380 0x603384 0x603388 0x60338c 0x603390 0x603394 0x603398 0x60339c 0x6033a0 0x6033a4 0x6033a8 0x6033ac 0x6033b0 0x6033b4 0x6033b8 0x6033bc 0x6033c0 0x6033c4 0x6033c8 0x6033cc 0x6033d0 0x6033d4 0x6033d8 0x6033dc 0x6033e0 0x6033e4 0x6033e8 0x6033ec 0x6033f0 0x6033f4 0x6033f8 0x6033fc 0x603400 0x603404 0x603408 0x60340c 0x603410 0x603414 0x603418 0x60341c 0x603420 0x603424 0x603428 0x60342c 0x603430 0x603434 0x603438 0x60343c 0x603440 0x603444 0x603448 0x60344c 0x603450 0x603454 0x603458 0x60345c 0x603460 0x603464 0x603468 0x60346c 0x603470 0x603474 0x603478 0x60347c 0x603480 0x603484 0x603488 0x60348c 0x603490 0x603494 0x603498 0x60349c 0x6034a0 0x6034a4 0x6034a8 0x6034ac 0x6034b0 0x6034b4 0x6034b8 0x6034bc 

0x603010: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 
0x603060: 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 
0x6030b0: 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 
0x603100: 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 
0x603150: 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 
0x6031a0: 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 
0x6031f0: 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 
0x603240: 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 
0x603290: 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 
0x6032e0: 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 
0x603330: 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 
0x603380: 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 
0x6033d0: 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 
0x603420: 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 
0x603470: 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299

As you can see, the multidimensional array lies contiguously in memory, and no two memory addresses are overlapping. Even the routine for freeing the array is simpler than the standard way of dynamically allocating memory for every single column (or row, depending on how you view the array). Since the array basically consists of two linear arrays, only these two have to be (and can be) freed.

This method can be extended for more than two dimensions with the same concept. I won't do it here, but when you get the idea behind it, it is a simple task.

I hope this code will help you as much as it helped me.

I found a workable solution: remove all the elements except the selected one. You can then change the style to something that looks disabled as well. Using jQuery:

jQuery(function($) {
    $('form').submit(function(){
        $('select option:not(:selected)', this).remove();
    });
});

Simple extension for UIApplication in Swift (cares even about moreNavigationController within UITabBarController on iPhone):

extension UIApplication {
    class func topViewController(base: UIViewController? = UIApplication.sharedApplication().keyWindow?.rootViewController) -> UIViewController? {

        if let nav = base as? UINavigationController {
            return topViewController(base: nav.visibleViewController)
        }

        if let tab = base as? UITabBarController {
            let moreNavigationController = tab.moreNavigationController

            if let top = moreNavigationController.topViewController where top.view.window != nil {
                return topViewController(top)
            } else if let selected = tab.selectedViewController {
                return topViewController(selected)
            }
        }

        if let presented = base?.presentedViewController {
            return topViewController(base: presented)
        }

        return base
    }
}

Simple usage:

    if let rootViewController = UIApplication.topViewController() {
        //do sth with root view controller
    }

Works perfect:-)

UPDATE for clean code:

extension UIViewController {
    var top: UIViewController? {
        if let controller = self as? UINavigationController {
            return controller.topViewController?.top
        }
        if let controller = self as? UISplitViewController {
            return controller.viewControllers.last?.top
        }
        if let controller = self as? UITabBarController {
            return controller.selectedViewController?.top
        }
        if let controller = presentedViewController {
            return controller.top
        }
        return self
    }
}

As mentioned by @superjos in comments use

mocha --recursive "some_dir"

You should not be repeating the string part when sending parameters.

int wordLength = wordLengthFunction(word); //you do not put string word here.

Another way:

var := coalesce (var, 5);

COALESCE is the ANSI equivalent (more or less) of Oracle's NVL function.

You can get columns number from ResultSetMetaData:

Statement st = conn.createStatement();
ResultSet rs = st.executeQuery(query);
ResultSetMetaData rsmd = rs.getMetaData();

int columnsNumber = rsmd.getColumnCount();

What if I want to obtain a distinct list based on one or more properties?

Simple! You want to group them and pick a winner out of the group.

List<Person> distinctPeople = allPeople
  .GroupBy(p => p.PersonId)
  .Select(g => g.First())
  .ToList();

If you want to define groups on multiple properties, here's how:

List<Person> distinctPeople = allPeople
  .GroupBy(p => new {p.PersonId, p.FavoriteColor} )
  .Select(g => g.First())
  .ToList();

If you know what the sections are, you can do:

select top 10 * from table where section=1
union
select top 10 * from table where section=2
union
select top 10 * from table where section=3

Below sample code can read file line by line and write new file in UTF-8 format. Also, i am explicitly specifying Cp1252 encoding.

    public static void main(String args[]) throws IOException {

    BufferedReader br = new BufferedReader(new InputStreamReader(
            new FileInputStream("c:\\filenonUTF.txt"),
            "Cp1252"));
    String line;

    Writer out = new BufferedWriter(
            new OutputStreamWriter(new FileOutputStream(
                    "c:\\fileUTF.txt"), "UTF-8"));

    try {

        while ((line = br.readLine()) != null) {

            out.write(line);
            out.write("\n");

        }

    } finally {

        br.close();
        out.close();

    }
}

If you want to consider null values equality too, try the following

select column1, column2, 
   case
      when column1 is NULL and column2 is NULL then 'true'  
      when column1=column2 then 'true' 
      else 'false' 
   end 
from table;

I've always used "inherited" rather than super. (Probably due to a Delphi background), and I always make it private, to avoid the problem when the 'inherited' is erroneously omitted from a class but a subclass tries to use it.

class MyClass : public MyBase
{
private:  // Prevents erroneous use by other classes.
  typedef MyBase inherited;
...

My standard 'code template' for creating new classes includes the typedef, so I have little opportunity to accidentally omit it.

I don't think the chained "super::super" suggestion is a good idea- If you're doing that, you're probably tied in very hard to a particular hierarchy, and changing it will likely break stuff badly.

The short answer is that ol elements are not legally allowed inside p elements.

To see why, let's go to the spec! If you can get comfortable with the HTML spec, it will answer many of your questions and curiosities. You want to know if an ol can live inside a p. So…

4.5.1 The p element:

Categories: Flow content, Palpable content.
Content model: Phrasing content.

4.5.5 The ol element:

Categories: Flow content.
Content model: Zero or more li and script-supporting elements.

The first part says that p elements can only contain phrasing content (which are “inline” elements like span and strong).

The second part says ols are flow content (“block” elements like p and div). So they can't be used inside a p.

ols and other flow content can be used in in some other elements like div:

4.5.13 The div element:

Categories: Flow content, Palpable content.
Content model: Flow content.

I'll answer for horizontal stretching of text, since the vertical is the easy part - just use "transform: scaleY()"

.stretched-text {
  letter-spacing: 2px;
  display: inline-block;
  font-size: 32px;
  transform: scaleY(0.5);
  transform-origin: 0 0;
  margin-bottom: -50%;
}
span {
  font-size: 16px;
  vertical-align: top;
}

<span class="stretched-text">this is some stretched text</span>
<span>and this is some random<br />triple line <br />not stretched text</span>

letter-spacing just adds space between letters, stretches nothing, but it's kinda relative

inline-block because inline elements are too restrictive and the code below wouldn't work otherwise

Now the combination that makes the difference

font-size to get to the size we want - that way the text will really be of the length it's supposed to be and the text before and after it will appear next to it (scaleX is just for show, the browser still sees the element at its original size when positioning other elements).

scaleY to reduce the height of the text, so that it's the same as the text beside it.

transform-origin to make the text scale from the top of the line.

margin-bottom set to a negative value, so that the next line will not be far below - preferably percentage, so that we won't change the line-height property. vertical-align set to top, to prevent the text before or after from floating to other heights (since the stretched text has a real size of 32px)

-- The simple span element has a font-size, only as a reference.

The question asked for a way to prevent the boldness of the text caused by the stretch and I still haven't given one, BUT the font-weight property has more values than just normal and bold.

I know, you just can't see that, but if you search for the appropriate fonts, you can use the more values.

Doing password checks on client side is unsafe especially when the password is hard coded.

The safest way is password checking on server side, but even then the password should not be transmitted plain text.

Checking the password client side is possible in a "secure way":

• The password needs to be hashed
• The hashed password is used as part of a new url

Say "abc" is your password so your md5 would be "900150983cd24fb0d6963f7d28e17f72" (consider salting!). Now build a url containing the hash (like http://yourdomain.com/90015...f72.html).

This works with multiple statements:

if condition1 Then stmt1:stmt2 Else if condition2 Then stmt3:stmt4 Else stmt5:stmt6

Or you can split it over multiple lines:

if condition1 Then stmt1:stmt2
Else if condition2 Then stmt3:stmt4
Else stmt5:stmt6

If you have multiple references to a particular variable i.e. User or IdentityFile, the first entry in the ssh config file always takes precedence, if you want something specific then put it in first, anything generic put it at the bottom.

Despite this question being rather old, I had to deal with a similar warning and wanted to share what I found out.

First of all this is a warning and not an error. So there is no need to worry too much about it. Basically it means, that Tomcat does not know what to do with the source attribute from context.

This source attribute is set by Eclipse (or to be more specific the Eclipse Web Tools Platform) to the server.xml file of Tomcat to match the running application to a project in workspace.

Tomcat generates a warning for every unknown markup in the server.xml (i.e. the source attribute) and this is the source of the warning. You can safely ignore it.

1. If you only want to modify your last commit message, then do:

   git commit --amend
   

That will drop you into your text editor and let you change the last commit message.

2. If you want to change the last three commit messages, or any of the commit messages up to that point, supply HEAD~3 to the git rebase -i command:

   git rebase -i HEAD~3
   

For me, it worked deleting my actual configuration and creating a new one, adding domains like this:

You can specify maven source/target version by adding these properties to your pom.xml file

<properties>
    <maven.compiler.source>1.6</maven.compiler.source>
    <maven.compiler.target>1.6</maven.compiler.target>
</properties>

You should give the new monkeyrunner a go. Maybe this can solve your problems. You put keycodes in it for testing, maybe touch events are also possible.

You can use @input with ngOnChanges, to see the changes when it happened.

reference: https://angular.io/api/core/OnChanges

(or)

If you want to pass data between multiple component or routes then go with Rxjs way.

Service.ts

import { Injectable } from '@angular/core';
import { Observable, Subject } from 'rxjs';

@Injectable({ providedIn: 'root' })
export class MessageService {
  private subject = new Subject<any>();

  sendMessage(message: string) {
    this.subject.next({ text: message });
  }

  clearMessages() {
    this.subject.next();
  }

  getMessage(): Observable<any> {
    return this.subject.asObservable();
  }
}

Component.ts

import { Component, OnDestroy } from '@angular/core';
import { Subscription } from 'rxjs';

import { MessageService } from './_services/index';

@Component({
  selector: 'app',
  templateUrl: 'app.component.html'
})

export class AppComponent implements OnDestroy {
  messages: any[] = [];
  subscription: Subscription;

  constructor(private messageService: MessageService) {
    // subscribe to home component messages
    this.subscription = this.messageService.getMessage().subscribe(message => {
      if (message) {
        this.messages.push(message);
      } else {
        // clear messages when empty message received
        this.messages = [];
      }
    });
  }

  ngOnDestroy() {
    // unsubscribe to ensure no memory leaks
    this.subscription.unsubscribe();
  }
}

Reference: http://jasonwatmore.com/post/2019/02/07/angular-7-communicating-between-components-with-observable-subject

<T> is a generic and can usually be read as "of type T". It depends on the type to the left of the <> what it actually means.

I don't know what a Pool or PoolFactory is, but you also mention ArrayList<T>, which is a standard Java class, so I'll talk to that.

Usually, you won't see "T" in there, you'll see another type. So if you see ArrayList<Integer> for example, that means "An ArrayList of Integers." Many classes use generics to constrain the type of the elements in a container, for example. Another example is HashMap<String, Integer>, which means "a map with String keys and Integer values."

Your Pool example is a bit different, because there you are defining a class. So in that case, you are creating a class that somebody else could instantiate with a particular type in place of T. For example, I could create an object of type Pool<String> using your class definition. That would mean two things:

• My Pool<String> would have an interface PoolFactory<String> with a createObject method that returns Strings.
• Internally, the Pool<String> would contain an ArrayList of Strings.

This is great news, because at another time, I could come along and create a Pool<Integer> which would use the same code, but have Integer wherever you see T in the source.

The algorithm that drives http://www.webqr.com is a JavaScript implementation of https://github.com/LazarSoft/jsqrcode. I haven't tried how reliable it is yet, but that's certainly the easier plug-and-play solution (client- or server-side) out of the two.

I prefer java's built in TimeUnit library

long seconds = TimeUnit.MINUTES.toSeconds(8);

Just in case you are like me and the Id Field of the User Entity is an Int or something else other than a string,

using Microsoft.AspNet.Identity;

int userId = User.Identity.GetUserId<int>();

will do the trick

The answers already explain how attributes and properties are handled differently, but I really would like to point out how totally insane this is. Even if it is to some extent the spec.

It is crazy, to have some of the attributes (e.g. id, class, foo, bar) to retain only one kind of value in the DOM, while some attributes (e.g. checked, selected) to retain two values; that is, the value "when it was loaded" and the value of the "dynamic state". (Isn't the DOM supposed to be to represent the state of the document to its full extent?)

It is absolutely essential, that two input fields, e.g. a text and a checkbox behave the very same way. If the text input field does not retain a separate "when it was loaded" value and the "current, dynamic" value, why does the checkbox? If the checkbox does have two values for the checked attribute, why does it not have two for its class and id attributes? If you expect to change the value of a text *input* field, and you expect the DOM (i.e. the "serialized representation") to change, and reflect this change, why on earth would you not expect the same from an input field of type checkbox on the checked attribute?

The differentiation, of "it is a boolean attribute" just does not make any sense to me, or is, at least not a sufficient reason for this.

Honestly, this doesn't need to be difficult. It may seem that on the onset, but it's not. Here's a simple linq query in C# that does exactly as requested.

In my example, I'm working against a list of persons that have one property called FirstName.

var results = ClientsRepository().Where(c => c.FirstName.ToLower().Contains(searchText.ToLower())).ToList();

This will search the database on lower case search but return full case results.

not as pythonic as the other answers, but mathematics:

return len(c) == 0

As some comments wondered about the impact len(set) could have on complexity. It is O(1) as shown in the source code given it relies on a variable that tracks the usage of the set.

static Py_ssize_t
set_len(PyObject *so)
{
    return ((PySetObject *)so)->used;
}

I found the console output of my job in the browser at the following location:

http://[Jenkins URL]/job/[Job Name]/default/[Build Number]/console

This Facebook page has a simple tool to create various share buttons.

For example, this is some output I got:

<div id="fb-root"></div>
<script async defer crossorigin="anonymous" src="https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v8.0" nonce="dilSYGI6"></script>
<div class="fb-share-button" data-href="https://www.mocacleveland.org/exhibitions/lee-mingwei-you-are-not-stranger" data-layout="button" data-size="small">
<a target="_blank" href="https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.mocacleveland.org%2Fexhibitions%2Flee-mingwei-you-are-not-stranger&amp;src=sdkpreparse" class="fb-xfbml-parse-ignore">Share</a>
</div>

USE Master GO

ALTER Server Role [bulkadmin] ADD MEMBER [username] GO Command failed even tried several command parameters

master..sp_addsrvrolemember @loginame = N'username', @rolename = N'bulkadmin' GO Command was successful..

If I were to do a code coverage crawl, I think these two would be top:

 [Serializable]
 [WebMethod]

Probably the simplest way is to use the InputBox method of the Microsoft.VisualBasic.Interaction class:

[void][Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic')

$title = 'Demographics'
$msg   = 'Enter your demographics:'

$text = [Microsoft.VisualBasic.Interaction]::InputBox($msg, $title)

HttpServerUtility.HtmlEncode

From the documentation:

String TestString = "This is a <Test String>.";
String EncodedString = Server.HtmlEncode(TestString);

But this actually encodes HTML, not URLs. Instead use UrlEncode(TestString).

You can also use the openxlsx library to export multiple datasets to multiple sheets in a single workbook.The advantage of openxlsx over xlsx is that openxlsx removes the dependencies on java libraries.

Write a list of data.frames to individual worksheets using list names as worksheet names.

require(openxlsx)
list_of_datasets <- list("Name of DataSheet1" = dataframe1, "Name of Datasheet2" = dataframe2)
write.xlsx(list_of_datasets, file = "writeXLSX2.xlsx")

Another nowadays example via Array.prototype.some().

function isImage(icon) {
  const ext = ['.jpg', '.jpeg', '.bmp', '.gif', '.png', '.svg'];
  return ext.some(el => icon.endsWith(el));
}

console.log(isImage('questions_4234589.png'));
console.log(isImage('questions_4234589.doc'));

Step 1 - add permission request

    String[] permissionArrays = new String[]{Manifest.permission.CAMERA, 
    Manifest.permission.WRITE_EXTERNAL_STORAGE};
    int REQUEST_CODE = 101;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            requestPermissions(permissionArrays, REQUEST_CODE );
        } else {
             // if already permition granted
            // PUT YOUR ACTION (Like Open cemara etc..)
        }
    }

Step 2 - Handle Permission result

     @Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    boolean openActivityOnce = true;
    boolean openDialogOnce = true;
    if (requestCode == REQUEST_CODE ) {
        for (int i = 0; i < grantResults.length; i++) {
            String permission = permissions[i];

            isPermitted = grantResults[i] == PackageManager.PERMISSION_GRANTED;

            if (grantResults[i] == PackageManager.PERMISSION_DENIED) {
                // user rejected the permission

            }else {
                //  user grant the permission
                // you can perfome your action 
            }
        }
    }
}

Just in case you are worried about those filler words, you can always just tell the function what not to capitalize.

/**
 * @param String str The text to be converted to titleCase.
 * @param Array glue the words to leave in lowercase. 
 */
var titleCase = function(str, glue){
    glue = (glue) ? glue : ['of', 'for', 'and'];
    return str.replace(/(\w)(\w*)/g, function(_, i, r){
        var j = i.toUpperCase() + (r != null ? r : "");
        return (glue.indexOf(j.toLowerCase())<0)?j:j.toLowerCase();
    });
};

Hope this helps you out.

edit

If you want to handle leading glue words, you can keep track of this w/ one more variable:

var titleCase = function(str, glue){
    glue = !!glue ? glue : ['of', 'for', 'and', 'a'];
    var first = true;
    return str.replace(/(\w)(\w*)/g, function(_, i, r) {
        var j = i.toUpperCase() + (r != null ? r : '').toLowerCase();
        var result = ((glue.indexOf(j.toLowerCase()) < 0) || first) ? j : j.toLowerCase();
        first = false;
        return result;
    });
};

Using another trait:

trait ATrait {
    function calc($v) {
        return $v+1;
    }
}

class A {
    use ATrait;
}

trait BTrait {
    function calc($v) {
        $v++;
        return parent::calc($v);
    }
}

class B extends A {
    use BTrait;
}

print (new B())->calc(2); // should print 4

And if you wanna work with data object, this two implements very important:

Serializable vs Parcelable

• Serializable is a marker interface, which implies the user cannot marshal the data according to their requirements. So when object implements Serializable Java will automatically serialize it.
• Parcelable is android own serialization protocol. In Parcelable, developers write custom code for marshaling and unmarshaling. So it creates less garbage objects in comparison to Serialization
• The performance of Parcelable is very high when comparing to Serializable because of its custom implementation It is highly recommended to use Parcelable implantation when serializing objects in android.

public class User implements Parcelable

check more in here

Just encountered the same issue. The problem is because of django-registration incompatible with django 1.7 user model.

A simple fix is to change these lines of code, at your installed django-registration module::

try:
    from django.contrib.auth import get_user_model
    User = get_user_model()
except ImportError:
    from django.contrib.auth.models import User  

to::

from django.conf import settings
try:
    from django.contrib.auth import get_user_model
    User = settings.AUTH_USER_MODEL
except ImportError:
    from django.contrib.auth.models import User 

Mine is at .venv/local/lib/python2.7/site-packages/registration/models.py (virtualenv)

Swift 4.2, iOS 12

The open(url:options:completionHandler:) method has been updated to include a non-nil options dictionary, which as of this post only contains one possible option of type UIApplication.OpenExternalURLOptionsKey (in the example).

@objc func openAppSpecificSettings() {
    guard let url = URL(string: UIApplication.openSettingsURLString),
        UIApplication.shared.canOpenURL(url) else {
            return
    }
    let optionsKeyDictionary = [UIApplication.OpenExternalURLOptionsKey(rawValue: "universalLinksOnly"): NSNumber(value: true)]
    
    UIApplication.shared.open(url, options: optionsKeyDictionary, completionHandler: nil)
}

Explicitly constructing a URL, such as with "App-Prefs", has, AFAIK, gotten some apps rejected from the store.

From the documentation of the DBNull class:

Do not confuse the notion of null in an object-oriented programming language with a DBNull object. In an object-oriented programming language, null means the absence of a reference to an object. DBNull represents an uninitialized variant or nonexistent database column.

grep -insr "pattern" *

• i: Ignore case distinctions in both the PATTERN and the input files.
• n: Prefix each line of output with the 1-based line number within its input file.
• s: Suppress error messages about nonexistent or unreadable files.
• r: Read all files under each directory, recursively.

I found the simplest way is just to close the window and run a module/script to reopen the shell.

After creating the DB link, if the two instances are present in two different databases, then you need to setup a TNS entry on the A machine so that it resolve B. check out here

I was looking for a solution to this and used the indirect one found on this page initially, but I found it quite long and clunky for what I was trying to do. After a bit of research, I found a more elegant solution (to my problem) using R1C1 notation - I think you can't mix different notation styles without using VBA though.

Depending on what you're trying to do with the self referenced cell, something like this example should get a cell to reference itself where the cell is F13:

Range("F13").FormulaR1C1 = "RC"

And you can then reference cells in relative positions to that cell such as - where your cell is F13 and you need to reference G12 from it.

Range("F13").FormulaR1C1 = "R[-1]C[1]"

You're essentially telling Excel to find F13 and then move down 1 row and up one column from that.

How this fit into my project was to apply a vlookup across a range where the lookup value was relative to each cell in the range without having to specify each lookup cell separately:

Sub Code()
    Dim Range1 As Range
    Set Range1 = Range("B18:B23")
        Range1.Locked = False
        Range1.FormulaR1C1 = "=IFERROR(VLOOKUP(RC[-1],DATABYCODE,2,FALSE),"""")"
        Range1.Locked = True
End Sub

My lookup value is the cell to the left of each cell (column -1) in my DIM'd range and DATABYCODE is the named range I'm looking up against.

Hope that makes a little sense? Thought it was worth throwing into the mix as another way to approach the problem.

ODATA is a special kind of REST where we can query data uniformly from URL.

You can try below code. it’s very easy method for push new fragment from old fragment.

private int mContainerId;
private FragmentTransaction fragmentTransaction;
private FragmentManager fragmentManager;
private final static String TAG = "DashBoardActivity";

public void replaceFragment(Fragment fragment, String TAG) {

    try {
        fragmentTransaction = fragmentManager.beginTransaction();
        fragmentTransaction.replace(mContainerId, fragment, tag);
        fragmentTransaction.addToBackStack(tag);
        fragmentTransaction.commitAllowingStateLoss();

    } catch (Exception e) {
        // TODO: handle exception
    }

}

Another option is to check for regular expression match on the command output.

For example:

[[ "$(./somecommand)" =~ "sub string" ]] && echo "Output includes 'sub string'"

After I tried algirdas' solution, my Windows crashed (Win 7 Pro 64bit) so I decided to try a different solution:

1. Start Run (Win+R)
2. Type cmd /K chcp 65001

You will get mostly what you want. To start it from the taskbar or anywhere else, make a shortcut (you can name it cmd.unicode.exe or whatever you like) and change its Target to C:\Windows\System32\cmd.exe /K chcp 65001.

for login screen;

NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
dict = [NSMutableDictionary 

dictionaryWithObjectsAndKeys:_usernametf.text, @"username",_passwordtf.text, @"password", nil];
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    manager.requestSerializer = [AFHTTPRequestSerializer serializer];

[manager POST:@"enter your url" parameters:dict progress:nil success:^(NSURLSessionTask *task, id responseObject) {
    NSLog(@"%@", responseObject);

}
      failure:^(NSURLSessionTask *operation, NSError *error) {
          NSLog(@"Error: %@", error);
      }];

}

Python has a stable sort, so provided that performance isn't an issue the simplest way is to sort it by field 2 and then sort it again by field 1.

That will give you the result you want, the only catch is that if it is a big list (or you want to sort it often) calling sort twice might be an unacceptable overhead.

list1 = sorted(csv1, key=operator.itemgetter(2))
list1 = sorted(list1, key=operator.itemgetter(1))

Doing it this way also makes it easy to handle the situation where you want some of the columns reverse sorted, just include the 'reverse=True' parameter when necessary.

Otherwise you can pass multiple parameters to itemgetter or manually build a tuple. That is probably going to be faster, but has the problem that it doesn't generalise well if some of the columns want to be reverse sorted (numeric columns can still be reversed by negating them but that stops the sort being stable).

So if you don't need any columns reverse sorted, go for multiple arguments to itemgetter, if you might, and the columns aren't numeric or you want to keep the sort stable go for multiple consecutive sorts.

Edit: For the commenters who have problems understanding how this answers the original question, here is an example that shows exactly how the stable nature of the sorting ensures we can do separate sorts on each key and end up with data sorted on multiple criteria:

DATA = [
    ('Jones', 'Jane', 58),
    ('Smith', 'Anne', 30),
    ('Jones', 'Fred', 30),
    ('Smith', 'John', 60),
    ('Smith', 'Fred', 30),
    ('Jones', 'Anne', 30),
    ('Smith', 'Jane', 58),
    ('Smith', 'Twin2', 3),
    ('Jones', 'John', 60),
    ('Smith', 'Twin1', 3),
    ('Jones', 'Twin1', 3),
    ('Jones', 'Twin2', 3)
]

# Sort by Surname, Age DESCENDING, Firstname
print("Initial data in random order")
for d in DATA:
    print("{:10s} {:10s} {}".format(*d))

print('''
First we sort by first name, after this pass all
Twin1 come before Twin2 and Anne comes before Fred''')
DATA.sort(key=lambda row: row[1])

for d in DATA:
    print("{:10s} {:10s} {}".format(*d))

print('''
Second pass: sort by age in descending order.
Note that after this pass rows are sorted by age but
Twin1/Twin2 and Anne/Fred pairs are still in correct
firstname order.''')
DATA.sort(key=lambda row: row[2], reverse=True)
for d in DATA:
    print("{:10s} {:10s} {}".format(*d))

print('''
Final pass sorts the Jones from the Smiths.
Within each family members are sorted by age but equal
age members are sorted by first name.
''')
DATA.sort(key=lambda row: row[0])
for d in DATA:
    print("{:10s} {:10s} {}".format(*d))

This is a runnable example, but to save people running it the output is:

Initial data in random order
Jones      Jane       58
Smith      Anne       30
Jones      Fred       30
Smith      John       60
Smith      Fred       30
Jones      Anne       30
Smith      Jane       58
Smith      Twin2      3
Jones      John       60
Smith      Twin1      3
Jones      Twin1      3
Jones      Twin2      3

First we sort by first name, after this pass all
Twin1 come before Twin2 and Anne comes before Fred
Smith      Anne       30
Jones      Anne       30
Jones      Fred       30
Smith      Fred       30
Jones      Jane       58
Smith      Jane       58
Smith      John       60
Jones      John       60
Smith      Twin1      3
Jones      Twin1      3
Smith      Twin2      3
Jones      Twin2      3

Second pass: sort by age in descending order.
Note that after this pass rows are sorted by age but
Twin1/Twin2 and Anne/Fred pairs are still in correct
firstname order.
Smith      John       60
Jones      John       60
Jones      Jane       58
Smith      Jane       58
Smith      Anne       30
Jones      Anne       30
Jones      Fred       30
Smith      Fred       30
Smith      Twin1      3
Jones      Twin1      3
Smith      Twin2      3
Jones      Twin2      3

Final pass sorts the Jones from the Smiths.
Within each family members are sorted by age but equal
age members are sorted by first name.

Jones      John       60
Jones      Jane       58
Jones      Anne       30
Jones      Fred       30
Jones      Twin1      3
Jones      Twin2      3
Smith      John       60
Smith      Jane       58
Smith      Anne       30
Smith      Fred       30
Smith      Twin1      3
Smith      Twin2      3

Note in particular how in the second step the reverse=True parameter keeps the firstnames in order whereas simply sorting then reversing the list would lose the desired order for the third sort key.

another simple solution is to use fs.readFile instead of using require you can save a text file contaning a json object, and create a interval on the server to reload this object.

pros:

• no need to use external libs
• relevant for production (reloading config file on change)
• easy to implement

cons:

• you can't reload a module - just a json containing key-value data

I tried to use dplyr::rename and I get an error:

occ_5d <- dplyr::rename(occ_5d, rowname='code_5d')
Error: Unknown column `code_5d` 
Call `rlang::last_error()` to see a backtrace

I instead used the base R function which turns out to be quite simple and effective:

names(occ_5d)[1] = "code_5d"

If you don't want to change your pattern you can use the Group Index and Length properties of a matched group.

var text = "example-123-example";
var pattern = @"-(\d+)-";
var regex = new RegEx(pattern);
var match = regex.Match(text);

var firstPart = text.Substring(0,match.Groups[1].Index);    
var secondPart = text.Substring(match.Groups[1].Index + match.Groups[1].Length);
var fullReplace = firstPart + "AA" + secondPart;

ALTER TABLE [TableName] DROP CONSTRAINT [CONSTRAINT_NAME]

But, be careful man, once you do that, you may never get a chance back, and you should read some basic database book see why we need foreign key

Fits everytime! :)

    name.text = @"Hi this the text I want to fit to"
    UIFont * font = 14.0f;
    CGSize size = [name.text sizeWithAttributes:@{NSFontAttributeName: font}];
    nameOfAssessment.frame = CGRectMake(400, 0, size.width, 44);
    nameOfAssessment.font = [UIFont systemFontOfSize:font];

A JSON object is simply a javascript object, so with Javascript being a prototype based language, all you have to do is address it using the dot notation.

mything.NewField = 'foo';

In case of writing in python3

>>> a = u'bats\u00E0'
>>> print a
batsà
>>> f = open("/tmp/test", "w")
>>> f.write(a)
>>> f.close()
>>> data = open("/tmp/test").read()
>>> data
'batsà'

In case of writing in python2:

>>> a = u'bats\u00E0'
>>> f = open("/tmp/test", "w")
>>> f.write(a)

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe0' in position 4: ordinal not in range(128)

To avoid this error you would have to encode it to bytes using codecs "utf-8" like this:

>>> f.write(a.encode("utf-8"))
>>> f.close()

and decode the data while reading using the codecs "utf-8":

>>> data = open("/tmp/test").read()
>>> data.decode("utf-8")
u'bats\xe0'

And also if you try to execute print on this string it will automatically decode using the "utf-8" codecs like this

>>> print a
batsà

Another option

tuple([tuple(row) for row in myarray])

If you are passing NumPy arrays to C++ functions, you may also wish to look at using Cython or SWIG.

Try MySQL Workbench, formerly DBDesigner 4:

http://dev.mysql.com/workbench/

This has a "Reverse Engineer Database" mode:

Database -> Reverse Engineer

The best approach for you to communicate between the two controllers is to use events.

See the scope documentation

In this check out $on, $broadcast and $emit.

Using the lambda function you can filter the rows with _merge value “left_only” to get all the rows in df1 which are missing from df2

df3 = df1.merge(df2, how = 'outer' ,indicator=True).loc[lambda x :x['_merge']=='left_only']
df

Yes, it is possible:

git clone https://github.com/pitosalas/st3_packages Packages 

You can specify the local root directory when using git clone.

<directory> 

The name of a new directory to clone into.
The "humanish" part of the source repository is used if no directory is explicitly given (repo for /path/to/repo.git and foo for host.xz:foo/.git).
Cloning into an existing directory is only allowed if the directory is empty.

As Chris comments, you can then rename that top directory.
Git only cares about the .git within said top folder, which you can get with various commands:

git rev-parse --show-toplevel git rev-parse --git-dir 

You can use opendir() and check if ENOENT == errno on failure:

#include <dirent.h>
#include <errno.h>

DIR* dir = opendir("mydir");
if (dir) {
    /* Directory exists. */
    closedir(dir);
} else if (ENOENT == errno) {
    /* Directory does not exist. */
} else {
    /* opendir() failed for some other reason. */
}

If you have multiple lists, you might want to define the permutation (the way you shuffle the list / rearrange the items in the list) first and then apply it to all lists:

import random

perm = list(range(len(list_one)))
random.shuffle(perm)
list_one = [list_one[index] for index in perm]
list_two = [list_two[index] for index in perm]

Numpy / Scipy

If your lists are numpy arrays, it is simpler:

import numpy as np

perm = np.random.permutation(len(list_one))
list_one = list_one[perm]
list_two = list_two[perm]

mpu

I've created the small utility package mpu which has the consistent_shuffle function:

import mpu

# Necessary if you want consistent results
import random
random.seed(8)

# Define example lists
list_one = [1,2,3]
list_two = ['a', 'b', 'c']

# Call the function
list_one, list_two = mpu.consistent_shuffle(list_one, list_two)

Note that mpu.consistent_shuffle takes an arbitrary number of arguments. So you can also shuffle three or more lists with it.

Another answer: There's a bookmarklet called ReCSS. I haven't used it extensively, but seems to work.

There's a bookmarklet on that page to drag and drop onto your address bar (Can't seem to make one here). In case that's broke, here's the code:

javascript:void(function()%7Bvar%20i,a,s;a=document.getElementsByTagName('link');for(i=0;i%3Ca.length;i++)%7Bs=a[i];if(s.rel.toLowerCase().indexOf('stylesheet')%3E=0&&s.href)%20%7Bvar%20h=s.href.replace(/(&%7C%5C?)forceReload=%5Cd%20/,'');s.href=h%20(h.indexOf('?')%3E=0?'&':'?')%20'forceReload='%20(new%20Date().valueOf())%7D%7D%7D)();

Code like this

 <html>
    <head>
          <script type="text/javascript" src="path/to/script.js"></script>
          <!--other script and also external css included over here-->
    </head>
    <body>
        <form>
            <select name="users" onChange="showUser(this.value)">
               <option value="1">Tom</option>
               <option value="2">Bob</option>
               <option value="3">Joe</option>
            </select>
        </form>
    </body>
    </html>

I hope it will help you.... thanks

When encoding query values, either form, plus or percent-20, is valid; however, since the bandwidth of the internet isn't infinite, you should use plus, since it's two fewer bytes.

Use this function. It works like a charm. replace "|" with the char to explode/split and the values 1,2,3,etc are based on the number of entries in the data-set: Value_ONE|Value_TWO|Value_THREE.

SUBSTRING_INDEX(SUBSTRING_INDEX(`tblNAME`.`tblFIELD`, '|', 1), '|', -1) AS PSI,
SUBSTRING_INDEX(SUBSTRING_INDEX(`tblNAME`.`tblFIELD`, '|', 2), '|', -1) AS GPM,
SUBSTRING_INDEX(SUBSTRING_INDEX(`tblNAME`.`tblFIELD`, '|', 3), '|', -1) AS LIQUID

I hope this helps.

The following is a simple solution, whereby the text field has a constraint tying it to the bottom layout guide. It simply adds the keyboard height to the constraint's constant.

// This constraint ties the text field to the bottom layout guide
@IBOutlet var textFieldToBottomLayoutGuideConstraint: NSLayoutConstraint!

override func viewDidLoad() {
    super.viewDidLoad()

    NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillShow:", name:UIKeyboardWillShowNotification, object: nil);
    NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillHide:", name:UIKeyboardWillHideNotification, object: nil);
}

func keyboardWillShow(sender: NSNotification) {
    if let keyboardSize = (sender.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.CGRectValue() {
        self.textFieldToBottomLayoutGuideConstraint?.constant += keyboardSize.height
    }
}

func keyboardWillHide(sender: NSNotification) {
    if let keyboardSize = (sender.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.CGRectValue() {
        self.textFieldToBottomLayoutGuideConstraint?.constant -= keyboardSize.height
    }
}

onblur is the opposite of onfocus.

You can make use of regex's quantifier feature since lookaround may not be supported all the time.

(\bjames\b){1,}.*(\bjack\b){1,}|(\bjack\b){1,}.*(\bjames\b){1,}

It is possible using ssh. Python accepts hyphen(-) as argument to execute the standard input,

cat hello.py | ssh [email protected] python -

Run python --help for more info.

This error appears when you wish to run a software which require the Microsoft Visual C++ Redistributable 2012. Download it fromMicrosoft website as x86 or x64 edition. Depending on the software you wish to install you need to install either the 32 bit or the 64 bit version. Visit the following link: http://www.microsoft.com/en-us/download/details.aspx?id=30679#

Use org.apache.commons.lang.StringUtils.EMPTY

    $ conda install nb_conda_kernels

(in the conda environment where you run jupyter notebook) will make all conda envs available automatically. For access to other environments, the respective kernels must be installed. Here's the ref.

simple is the best and works in every version.

if a>10: 
    value="b"
else: 
    value="c"

Solution for JUnit 5 for Kotlin!

Example for Hamcrest:

import org.hamcrest.CoreMatchers
import org.hamcrest.MatcherAssert
import org.junit.jupiter.api.Test

class HamcrestAssertionDemo {

    @Test
    fun assertWithHamcrestMatcher() {
        val subClass = SubClass()
        MatcherAssert.assertThat(subClass, CoreMatchers.instanceOf<Any>(BaseClass::class.java))
    }

}

Example for AssertJ:

import org.assertj.core.api.Assertions.assertThat
import org.junit.jupiter.api.Test

class AssertJDemo {

    @Test
    fun assertWithAssertJ() {
        val subClass = SubClass()
        assertThat(subClass).isInstanceOf(BaseClass::class.java)
    }

}

Postgresql > 8.4

SELECT 
    row_number() OVER (ORDER BY col1) AS i, 
    e.col1, 
    e.col2, 
    ... 
FROM ... 

Using the abc module for abstract base classes seems to do the trick.

from abc import ABCMeta, abstractmethod

class IInterface:
    __metaclass__ = ABCMeta

    @classmethod
    def version(self): return "1.0"
    @abstractmethod
    def show(self): raise NotImplementedError

class MyServer(IInterface):
    def show(self):
        print 'Hello, World 2!'

class MyBadServer(object):
    def show(self):
        print 'Damn you, world!'


class MyClient(object):

    def __init__(self, server):
        if not isinstance(server, IInterface): raise Exception('Bad interface')
        if not IInterface.version() == '1.0': raise Exception('Bad revision')

        self._server = server


    def client_show(self):
        self._server.show()


# This call will fail with an exception
try:
    x = MyClient(MyBadServer)
except Exception as exc:
    print 'Failed as it should!'

# This will pass with glory
MyClient(MyServer()).client_show()

In C++, unlike (say) Java, an instance of a nested class doesn't intrinsically belong to any instance of the enclosing class. So bar::getA doesn't have any specific instance of foo whose a it can be returning. I'm guessing that what you want is something like:

    class bar {
      private:
        foo * const owner;
      public:
        bar(foo & owner) : owner(&owner) { }
        int getA() {return owner->a;}
    };

But even for this you may have to make some changes, because in versions of C++ before C++11, unlike (again, say) Java, a nested class has no special access to its enclosing class, so it can't see the protected member a. This will depend on your compiler version. (Hat-tip to Ken Wayne VanderLinde for pointing out that C++11 has changed this.)

I think you may be getting tripped up on the sheet protection. I streamlined your code a little and am explicitly setting references to the workbook and worksheet objects. In your example, you explicitly refer to the workbook and sheet when you're setting the TxtRng object, but not when you unprotect the sheet.

Try this:

Sub varchanger()

    Dim wb As Workbook
    Dim ws As Worksheet
    Dim TxtRng  As Range

    Set wb = ActiveWorkbook
    Set ws = wb.Sheets("Sheet1")
    'or ws.Unprotect Password:="yourpass"
    ws.Unprotect

    Set TxtRng = ws.Range("A1")
    TxtRng.Value = "SubTotal"
    'http://stackoverflow.com/questions/8253776/worksheet-protection-set-using-ws-protect-but-doesnt-unprotect-using-the-menu
    ' or ws.Protect Password:="yourpass"
    ws.Protect

End Sub

If I run the sub with ws.Unprotect commented out, I get a run-time error 1004. (Assuming I've protected the sheet and have the range locked.) Uncommenting the line allows the code to run fine.

NOTES:

1. I'm re-setting sheet protection after writing to the range. I'm assuming you want to do this if you had the sheet protected in the first place. If you are re-setting protection later after further processing, you'll need to remove that line.
2. I removed the error handler. The Excel error message gives you a lot more detail than Err.number. You can put it back in once you get your code working and display whatever you want. Obviously you can use Err.Description as well.
3. The Cells(1, 1) notation can cause a huge amount of grief. Be careful using it. Range("A1") is a lot easier for humans to parse and tends to prevent forehead-slapping mistakes.

For my case, the issue was with using Lombok's experimental feature @UtilityClass in my java project in Intellij Idea, to annotate a class methods as "static". When I explicitly made each method of the class as "static" instead of using the annotation, all the compilation issues disappeared.

So notice variables are on the stack, the values they refer to are on the heap. So having variables is not too bad but yes they do create references to other entities. However in the simple case you describe it's not really any consequence. If it is never read again and within a contained scope, the compiler will probably strip it out before runtime. Even if it didn't the garbage collector will be able to safely remove it after the stack squashes. If you are running into issues where you have too many stack variables, it's usually because you have really deep stacks. The amount of stack space needed per thread is a better place to adjust than to make your code unreadable. The setting to null is also no longer needed

Who "they"? I don't think there's a visible attribute in html.

Use the password input type.

<input type="password" name="password" />

Here is a simple demo http://jsfiddle.net/cPaEN/

The deduplication (to select the max T1) and the aggregation need to be done as distinct steps. I've used a CTE since I think this makes it clearer:

;WITH sumCTE
AS
(
    SELECT  Rel.t2ID, SUM(Price) price
    FROM    @t1         AS T1
    JOIN    @relation   AS Rel 
    ON      Rel.t1ID=T1.ID
    GROUP 
    BY      Rel.t2ID
)
,maxCTE
AS
(
    SELECT  Rel.t2ID, Rel.t1ID, 
            ROW_NUMBER()OVER(Partition By Rel.t2ID Order By Price DESC)As PriceList
    FROM    @t1         AS T1
    JOIN    @relation   AS Rel 
    ON      Rel.t1ID=T1.ID
)
SELECT T2.ID AS T2ID
,T2.Name as T2Name
,T2.Orders
,T1.ID AS T1ID
,T1.Name As T1Name
,sumT1.Price
FROM    @t2 AS T2
JOIN    sumCTE AS sumT1
ON      sumT1.t2ID = t2.ID
JOIN    maxCTE AS maxT1
ON      maxT1.t2ID = t2.ID
JOIN    @t1 AS T1
ON      T1.ID = maxT1.t1ID
WHERE   maxT1.PriceList = 1

SQL stands for Structured Query Language, and it is a programming language designed for querying data from a database. MySQL is a relational database management system, which is a completely different thing.

MySQL is an open-source platform that uses SQL, just like MSSQL, which is Microsoft's product (not open-source) that uses SQL for database management.

Refer https://docs.python.org/2/tutorial/controlflow.html#unpacking-argument-lists

 dt = datetime.datetime(*t[:7])

You can use this extension method on enum, for any type of enums:

public static bool IsSingle(this Enum value)
{
    var items = Enum.GetValues(value.GetType());
    var counter = 0;
    foreach (var item in items)
    {
        if (value.HasFlag((Enum)item))
        {
            counter++;
        }
        if (counter > 1)
        {
            return false;
        }
    }
    return true;
}

You can run nodejs using pm2 if you want to manage each microservice means and run it. Node will be running in a port right just configure that port in nginx(/etc/nginx/sites-enabled/domain.com)

server{
    listen 80;
    server_name domain.com www.domain.com;

  location / {
     return 403;
  }
    location /url {
        proxy_pass http://localhost:51967/info;
    }
}

Check whether localhost is running or not by using ping.

And

Create one single Node.js server which handles all Node.js requests. This reads the requested files and evals their contents. So the files are interpreted on each request, but the server logic is much simpler.

This is best and as you said easier too

check your cpanels space.remove unused file or error.log file & then try to login your application(This work for me);

Update using NuGet Package Manager Console in your Visual Studio

Update-Package -reinstall Microsoft.AspNet.Mvc

Try using getTime (mdn doc) :

var diff = Math.abs(date1.getTime() - date2.getTime()) / 3600000;
if (diff < 18) { /* do something */ }

Using Math.abs() we don't know which date is the smallest. This code is probably more relevant :

var diff = (date1 - date2) / 3600000;
if (diff < 18) { array.push(date1); }

Another way is using HashSet:

var hash = new HashSet<int>();
var duplicates = list.Where(i => !hash.Add(i));

If you want unique values in your duplicates list:

var myhash = new HashSet<int>();
var mylist = new List<int>(){1,1,2,2,3,3,3,4,4,4};
var duplicates = mylist.Where(item => !myhash.Add(item)).Distinct().ToList();

Here is the same solution as a generic extension method:

public static class Extensions
{
  public static IEnumerable<TSource> GetDuplicates<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> selector, IEqualityComparer<TKey> comparer)
  {
    var hash = new HashSet<TKey>(comparer);
    return source.Where(item => !hash.Add(selector(item))).ToList();
  }

  public static IEnumerable<TSource> GetDuplicates<TSource>(this IEnumerable<TSource> source, IEqualityComparer<TSource> comparer)
  {
    return source.GetDuplicates(x => x, comparer);      
  }

  public static IEnumerable<TSource> GetDuplicates<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey> selector)
  {
    return source.GetDuplicates(selector, null);
  }

  public static IEnumerable<TSource> GetDuplicates<TSource>(this IEnumerable<TSource> source)
  {
    return source.GetDuplicates(x => x, null);
  }
}

Although officially there is no limit specified by RFC 2616, many security protocols and recommendations state that maxQueryStrings on a server should be set to a maximum character limit of 1024. While the entire URL, including the querystring, should be set to a max of 2048 characters. This is to prevent the Slow HTTP Request DDOS vulnerability on a web server. This typically shows up as a vulnerability on the Qualys Web Application Scanner and other security scanners.

Please see the below example code for Windows IIS Servers with Web.config:

<system.webServer>
<security>
    <requestFiltering>
        <requestLimits maxQueryString="1024" maxUrl="2048">
           <headerLimits>
              <add header="Content-type" sizeLimit="100" />
           </headerLimits>
        </requestLimits>
     </requestFiltering>
</security>
</system.webServer>

This would also work on a server level using machine.config.

Note: Limiting query string and URL length may not completely prevent Slow HTTP Requests DDOS attack but it is one step you can take to prevent it.

Check an ASCII table.

It stands for CR, or Carriage Return, AKA the Return key.

Like Purmou, but removing the form when submit will done.

$(function() {
   $('<form action="form2.html"></form>').appendTo('body').submit().remove();
});

Here's how I did it.

• Make/Convert csv file to be seperated by tabs (\t) AND not enclosed by any quotes (sqlite interprets quotes literally - says old docs)

• Enter the sqlite shell of the db to which the data needs to be added

  sqlite> .separator "\t" ---IMPORTANT! should be in double quotes sqlite> .import afile.csv tablename-to-import-to

The MOD keyword only exists in the DAX language (tabular dimensional queries), not TSQL

Use % instead.

Ref: Modulo

I also had this problem. I was trying to enter data into the database without saving changes I had made in it. after i saved the changes worked

I see people are confused when declaring variables with or without var and inside or outside the function. Here is a deep example that will walk you through these steps:

See the script below in action here at jsfiddle

a = 1;// Defined outside the function without var
var b = 1;// Defined outside the function with var
alert("Starting outside of all functions... \n \n a, b defined but c, d not defined yet: \n a:" + a + "\n b:" + b + "\n \n (If I try to show the value of the undefined c or d, console.log would throw 'Uncaught ReferenceError: c is not defined' error and script would stop running!)");

function testVar1(){
    c = 1;// Defined inside the function without var
    var d = 1;// Defined inside the function with var
    alert("Now inside the 1. function: \n a:" + a + "\n b:" + b + "\n c:" + c + "\n d:" + d);

    a = a + 5;
    b = b + 5;
    c = c + 5;
    d = d + 5;

    alert("After added values inside the 1. function: \n a:" + a + "\n b:" + b + "\n c:" + c + "\n d:" + d);
};


testVar1();
alert("Run the 1. function again...");
testVar1();

function testVar2(){
    var d = 1;// Defined inside the function with var
    alert("Now inside the 2. function: \n a:" + a + "\n b:" + b + "\n c:" + c + "\n d:" + d);

    a = a + 5;
    b = b + 5;
    c = c + 5;
    d = d + 5;

    alert("After added values inside the 2. function: \n a:" + a + "\n b:" + b + "\n c:" + c + "\n d:" + d);
};

testVar2();

alert("Now outside of all functions... \n \n Final Values: \n a:" + a + "\n b:" + b + "\n c:" + c + "\n You will not be able to see d here because then the value is requested, console.log would throw error 'Uncaught ReferenceError: d is not defined' and script would stop. \n ");
alert("**************\n Conclusion \n ************** \n \n 1. No matter declared with or without var (like a, b) if they get their value outside the function, they will preserve their value and also any other values that are added inside various functions through the script are preserved.\n 2. If the variable is declared without var inside a function (like c), it will act like the previous rule, it will preserve its value across all functions from now on. Either it got its first value in function testVar1() it still preserves the value and get additional value in function testVar2() \n 3. If the variable is declared with var inside a function only (like d in testVar1 or testVar2) it will will be undefined whenever the function ends. So it will be temporary variable in a function.");
alert("Now check console.log for the error when value d is requested next:");
alert(d);

Conclusion

1. No matter declared with or without var (like a, b) if they get their value outside the function, they will preserve their value and also any other values that are added inside various functions through the script are preserved.
2. If the variable is declared without var inside a function (like c), it will act like the previous rule, it will preserve its value across all functions from now on. Either it got its first value in function testVar1() it still preserves the value and get additional value in function testVar2()
3. If the variable is declared with var inside a function only (like d in testVar1 or testVar2) it will will be undefined whenever the function ends. So it will be temporary variable in a function.

You can use this utility function:

public static byte[] fromHexString(String src) {
    byte[] biBytes = new BigInteger("10" + src.replaceAll("\\s", ""), 16).toByteArray();
    return Arrays.copyOfRange(biBytes, 1, biBytes.length);
}

Unlike variants of Denys Séguret and stefan.schwetschke, it allows inserting separator symbols (spaces, tabs, etc.) into the input string, making it more readable.

Example of usage:

private static final byte[] CDRIVES
    = fromHexString("e0 4f d0 20 ea 3a 69 10 a2 d8 08 00 2b 30 30 9d");
private static final byte[] CMYDOCS
    = fromHexString("BA8A0D4525ADD01198A80800361B1103");
private static final byte[] IEFRAME
    = fromHexString("80531c87 a0426910 a2ea0800 2b30309d");

On the command line, enter

whoami

or

echo "$USER"

To save these values to a variable, do

myvariable=$(whoami)

or

myvariable=$USER

Of course, you don't need to make a variable since that is what the $USER variable is for.

def exit(self):
    self.frame.destroy()
exit_btn=Button(self.frame,text='Exit',command=self.exit,activebackground='grey',activeforeground='#AB78F1',bg='#58F0AB',highlightcolor='red',padx='10px',pady='3px')
exit_btn.place(relx=0.45,rely=0.35)

This worked for me to destroy my Tkinter frame on clicking the exit button.

In Internet Explorer, parentElement is undefined for SVG elements, whereas parentNode is defined.

Here's a dplyr option:

library(dplyr)

# across all columns:
df %>% filter_all(any_vars(. %in% c('M017', 'M018')))

# or in only select columns:
df %>% filter_at(vars(col1, col2), any_vars(. %in% c('M017', 'M018')))                                                                                                     

A simple solution would be to configure static http headers needed for all calls in the bean configuration of the RestTemplate:

@Configuration
public class RestTemplateConfig {

    @Bean
    public RestTemplate getRestTemplate(@Value("${did-service.bearer-token}") String bearerToken) {
        RestTemplate restTemplate = new RestTemplate();
        restTemplate.getInterceptors().add((request, body, clientHttpRequestExecution) -> {
            HttpHeaders headers = request.getHeaders();
            if (!headers.containsKey("Authorization")) {
                String token = bearerToken.toLowerCase().startsWith("bearer") ? bearerToken : "Bearer " + bearerToken;
                request.getHeaders().add("Authorization", token);
            }
            return clientHttpRequestExecution.execute(request, body);
        });
        return restTemplate;
    }
}

All above answers perfectly gives the solution to center the form using Bootstrap 4. However, if someone wants to use out of the box Bootstrap 4 css classes without help of any additional styles and also not wanting to use flex, we can do like this.

A sample form

HTML

<div class="container-fluid h-100 bg-light text-dark">
  <div class="row justify-content-center align-items-center">
    <h1>Form</h1>    
  </div>
  <hr/>
  <div class="row justify-content-center align-items-center h-100">
    <div class="col col-sm-6 col-md-6 col-lg-4 col-xl-3">
      <form action="">
        <div class="form-group">
          <select class="form-control">
                    <option>Option 1</option>
                    <option>Option 2</option>
                  </select>
        </div>
        <div class="form-group">
          <input type="text" class="form-control" />
        </div>
        <div class="form-group text-center">
          <div class="form-check-inline">
            <label class="form-check-label">
    <input type="radio" class="form-check-input" name="optradio">Option 1
  </label>
          </div>
          <div class="form-check-inline">
            <label class="form-check-label">
    <input type="radio" class="form-check-input" name="optradio">Option 2
  </label>
          </div>
          <div class="form-check-inline">
            <label class="form-check-label">
    <input type="radio" class="form-check-input" name="optradio" disabled>Option 3
  </label>
          </div>
        </div>
        <div class="form-group">
          <div class="container">
            <div class="row">
              <div class="col"><button class="col-6 btn btn-secondary btn-sm float-left">Reset</button></div>
              <div class="col"><button class="col-6 btn btn-primary btn-sm float-right">Submit</button></div>
            </div>
          </div>
        </div>

      </form>
    </div>
  </div>
</div>

Link to CodePen

https://codepen.io/anjanasilva/pen/WgLaGZ

I hope this helps someone. Thank you.

The select box arrow is a native ui element, it depends on the desktop theme or the web browser. Use a jQuery plugin (e.g. Select2, Chosen) or CSS.

Well to obtain all different values in a Dataframe you can use distinct. As you can see in the documentation that method returns another DataFrame. After that you can create a UDF in order to transform each record.

For example:

val df = sc.parallelize(Array((1, 2), (3, 4), (1, 6))).toDF("age", "salary")

// I obtain all different values. If you show you must see only {1, 3}
val distinctValuesDF = df.select(df("age")).distinct

// Define your udf. In this case I defined a simple function, but they can get complicated.
val myTransformationUDF = udf(value => value / 10)

// Run that transformation "over" your DataFrame
val afterTransformationDF = distinctValuesDF.select(myTransformationUDF(col("age")))

Try this:

$(":focus").each(function() {
    alert("Focused Elem_id = "+ this.id );
});

Window > Preferences, go to the Run/Debug > Console section >> "Limit console output.>>Console buffer size(characters):" (This option can be seen in Eclipse Indigo ,but it limits buffer size at 1,000,000 )

there is another way wich you don't have to overwrite uibModal classes and use them if needed : you call $uibModal.open function with your own size type like "xlg" and then you define a class named "modal-xlg" like below :

.modal-xlg{
   width:1200px;
}

call $uibModal.open as :

 var modalInstance = $uibModal.open({
                ...  
                size: "xlg",
            });

and this will work . because whatever string you pass as size bootstrap will cocant it with "modal-" and this will play the role of class for window.

As Martin's Answer didn't work at all for me ("File not found") and atesio's Answer does not allow to call two scripts which include repeating variable definitions, here is another alternative which finally worked for me:

filepath =  Chr(34) & "C:\...\helloworld.vbs" & Chr(34)
Set objshell= CreateObject("WScript.Shell") 
objshell.Run "wscript " & filepath, , True
Set objshell= Nothing

(Windows 8.1)

Of course that works; when @item1 = N'', it IS NOT NULL.

You can define @item1 as NULL by default at the top of your stored procedure, and then not pass in a parameter.

prefix the comment with a single-quote. there is no need for an "end" tag.

'this is a comment

Extend to multiple lines using the line-continuation character, _:

'this is a multi-line _
   comment

This is an option in the toolbar to select a line(s) of code and comment/uncomment:

Use the utf8 module from npm to encode/decode the string.

Installation:

npm install utf8

In a browser:

<script src="utf8.js"></script>

In Node.js:

const utf8 = require('utf8');

API:

Encode:

utf8.encode(string)

Encodes any given JavaScript string (string) as UTF-8, and returns the UTF-8-encoded version of the string. It throws an error if the input string contains a non-scalar value, i.e. a lone surrogate. (If you need to be able to encode non-scalar values as well, use WTF-8 instead.)

// U+00A9 COPYRIGHT SIGN; see http://codepoints.net/U+00A9
utf8.encode('\xA9');
// ? '\xC2\xA9'
// U+10001 LINEAR B SYLLABLE B038 E; see http://codepoints.net/U+10001
utf8.encode('\uD800\uDC01');
// ? '\xF0\x90\x80\x81'

Decode:

utf8.decode(byteString)

Decodes any given UTF-8-encoded string (byteString) as UTF-8, and returns the UTF-8-decoded version of the string. It throws an error when malformed UTF-8 is detected. (If you need to be able to decode encoded non-scalar values as well, use WTF-8 instead.)

utf8.decode('\xC2\xA9');
// ? '\xA9'

utf8.decode('\xF0\x90\x80\x81');
// ? '\uD800\uDC01'
// ? U+10001 LINEAR B SYLLABLE B038 E

Resources

@S.Lott: You inspired me to write a timeit app.

I figured it would also vary based on the number of partitions (number of iterators within the container list) -- your comment didn't mention how many partitions there were of the thirty items. This plot is flattening a thousand items in every run, with varying number of partitions. The items are evenly distributed among the partitions.

Code (Python 2.6):

#!/usr/bin/env python2.6

"""Usage: %prog item_count"""

from __future__ import print_function

import collections
import itertools
import operator
from timeit import Timer
import sys

import matplotlib.pyplot as pyplot

def itertools_flatten(iter_lst):
    return list(itertools.chain(*iter_lst))

def itertools_iterable_flatten(iter_iter):
    return list(itertools.chain.from_iterable(iter_iter))

def reduce_flatten(iter_lst):
    return reduce(operator.add, map(list, iter_lst))

def reduce_lambda_flatten(iter_lst):
    return reduce(operator.add, map(lambda x: list(x), [i for i in iter_lst]))

def comprehension_flatten(iter_lst):
    return list(item for iter_ in iter_lst for item in iter_)

METHODS = ['itertools', 'itertools_iterable', 'reduce', 'reduce_lambda',
           'comprehension']

def _time_test_assert(iter_lst):
    """Make sure all methods produce an equivalent value.
    :raise AssertionError: On any non-equivalent value."""
    callables = (globals()[method + '_flatten'] for method in METHODS)
    results = [callable(iter_lst) for callable in callables]
    if not all(result == results[0] for result in results[1:]):
        raise AssertionError

def time_test(partition_count, item_count_per_partition, test_count=10000):
    """Run flatten methods on a list of :param:`partition_count` iterables.
    Normalize results over :param:`test_count` runs.
    :return: Mapping from method to (normalized) microseconds per pass.
    """
    iter_lst = [[dict()] * item_count_per_partition] * partition_count
    print('Partition count:    ', partition_count)
    print('Items per partition:', item_count_per_partition)
    _time_test_assert(iter_lst)
    test_str = 'flatten(%r)' % iter_lst
    result_by_method = {}
    for method in METHODS:
        setup_str = 'from test import %s_flatten as flatten' % method
        t = Timer(test_str, setup_str)
        per_pass = test_count * t.timeit(number=test_count) / test_count
        print('%20s: %.2f usec/pass' % (method, per_pass))
        result_by_method[method] = per_pass
    return result_by_method

if __name__ == '__main__':
    if len(sys.argv) != 2:
        raise ValueError('Need a number of items to flatten')
    item_count = int(sys.argv[1])
    partition_counts = []
    pass_times_by_method = collections.defaultdict(list)
    for partition_count in xrange(1, item_count):
        if item_count % partition_count != 0:
            continue
        items_per_partition = item_count / partition_count
        result_by_method = time_test(partition_count, items_per_partition)
        partition_counts.append(partition_count)
        for method, result in result_by_method.iteritems():
            pass_times_by_method[method].append(result)
    for method, pass_times in pass_times_by_method.iteritems():
        pyplot.plot(partition_counts, pass_times, label=method)
    pyplot.legend()
    pyplot.title('Flattening Comparison for %d Items' % item_count)
    pyplot.xlabel('Number of Partitions')
    pyplot.ylabel('Microseconds')
    pyplot.show()

Edit: Decided to make it community wiki.

Note: METHODS should probably be accumulated with a decorator, but I figure it'd be easier for people to read this way.

The answers above are correct, but I thought I would expand another answer by offering a way to do the same if you require to pass parameters into the query.

The SqlDataAdapter is quick and simple, but only works if you're filling a table with a static request ie: a simple SELECT without parameters.

Here is my way to do the same, but using a parameter to control the data I require in my table. And I use it to populate a DropDownList.

//populate the Programs dropdownlist according to the student's study year / preference
DropDownList ddlPrograms = (DropDownList)DetailsView1.FindControl("ddlPrograms");
if (ddlPrograms != null)
{
    using (SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ATCNTV1ConnectionString"].ConnectionString))
    {
        try
        {
            con.Open();
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = con;
            cmd.CommandText = "SELECT ProgramID, ProgramName FROM tblPrograms WHERE ProgramCatID > 0 AND ProgramStatusID = (CASE WHEN @StudyYearID = 'VPR' THEN 10 ELSE 7 END) AND ProgramID NOT IN (23,112,113) ORDER BY ProgramName";
            cmd.Parameters.Add("@StudyYearID", SqlDbType.Char).Value = "11";
            DataTable wsPrograms = new DataTable();
            wsPrograms.Load(cmd.ExecuteReader());

            //populate the Programs ddl list
            ddlPrograms.DataSource = wsPrograms;
            ddlPrograms.DataTextField = "ProgramName";
            ddlPrograms.DataValueField = "ProgramID";
            ddlPrograms.DataBind();
            ddlPrograms.Items.Insert(0, new ListItem("<Select Program>", "0"));
        }
        catch (Exception ex)
        {
            // Handle the error
        }
    }
}

Enjoy

For Windows, in case the variable value has space(" ") in it, the correct way is actually to place quotes(") before the variable name like:

set "JAVA_OPTS=-Xms512M -Xmx1024M"

Whenever possible, avoid applying functions to a column in the where clause:

SELECT *
  FROM table_name
 WHERE timestamp >= UNIX_TIMESTAMP('2010-10-01 00:00:00') 
   AND timestamp <  UNIX_TIMESTAMP('2010-11-01 00:00:00');

Applying a function to the timestamp column (e.g., FROM_UNIXTIME(timestamp) = ...) makes indexing much harder.

Here you go:

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

so if the value is for instance 'foo', then the selector will be 'td[id^="foo"]'.

Note that the quotes are mandatory: [id^="...."].

Source: http://api.jquery.com/attribute-starts-with-selector/

change this

audio.src='audio/ogg/' + document.getElementById(song1.ogg);

to

audio.src='audio/ogg/' + document.getElementById('song1');

To execute your command directly from within C#, you would use the SqlCommand class.

Quick sample code using paramaterized SQL (to avoid injection attacks) might look like this:

string queryString = "SELECT tPatCulIntPatIDPk, tPatSFirstname, tPatSName, tPatDBirthday  FROM  [dbo].[TPatientRaw] WHERE tPatSName = @tPatSName";
string connectionString = "Server=.\PDATA_SQLEXPRESS;Database=;User Id=sa;Password=2BeChanged!;";

using (SqlConnection connection = new SqlConnection(connectionString))
{
    SqlCommand command = new SqlCommand(queryString, connection);
    command.Parameters.AddWithValue("@tPatSName", "Your-Parm-Value");
    connection.Open();
    SqlDataReader reader = command.ExecuteReader();
    try
    {
        while (reader.Read())
        {
            Console.WriteLine(String.Format("{0}, {1}",
            reader["tPatCulIntPatIDPk"], reader["tPatSFirstname"]));// etc
        }
    }
    finally
    {
        // Always call Close when done reading.
        reader.Close();
    }
}

I tried re-creating this, and .someclass.notip was being generated for me but .someclass:not(.notip) was not, for as long as I did not have the @mixin tip() defined. Once I had that, it all worked.

http://sassmeister.com/gist/9775949

$dropdown-width: 100px;
$comp-tip: true;

@mixin tip($pos:right) {

}

@mixin dropdown-pos($pos:right) {
  &:not(.notip) {
    @if $comp-tip == true{
      @if $pos == right {
        top:$dropdown-width * -0.6;
        background-color: #f00;
        @include tip($pos:$pos);
      }
    }
  }
  &.notip {
    @if $pos == right {
      top: 0;
      left:$dropdown-width * 0.8;
      background-color: #00f;
    }
  }
}

.someclass { @include dropdown-pos(); }

EDIT: http://sassmeister.com/ is a good place to debug your SASS because it gives you error messages. Undefined mixin 'tip'. it what I get when I remove @mixin tip($pos:right) { }

For anyone who is looking for solutions here, I had a similar issue with C++: malloc(): smallbin double linked list corrupted:

This was due to a function not returning a value it was supposed to.

std::vector<Object> generateStuff(std::vector<Object>& target> {
  std::vector<Object> returnValue;
  editStuff(target);
  // RETURN MISSING
}

Don't know why this was able to compile after all. Probably there was a warning about it.

Possible solution with string_view

void do_it_with_string_view( void )
{
    std::string a { "12345" };
    for ( std::string_view v { a }; v.size() - 1; v.remove_prefix( 1 ) )
        std::cout << v.substr( 0, 2 ) << " ";
    std::cout << std::endl;
}

old question, but if anyone finds this through google (as I did) and who does not want to use anchors or jquery; there's a builtin javascriptfunction to 'jump' to an element;

document.getElementById('youridhere').scrollIntoView();

and what's even better; according to the great compatibility-tables on quirksmode, this is supported by all major browsers!

ES2015 UPDATE

ES2015 have String#includes method that checks whether a string contains another. This can be used if the target environment supports it. The method returns true if the needle is found in haystack else returns false.

ng-if="haystack.includes(needle)"

Here, needle is the string that is to be searched in haystack.

See Browser Compatibility table from MDN. Note that this is not supported by IE and Opera. In this case polyfill can be used.

You can use String#indexOf to get the index of the needle in haystack.

1. If the needle is not present in the haystack -1 is returned.
2. If needle is present at the beginning of the haystack 0 is returned.
3. Else the index at which needle is, is returned.

The index can be compared with -1 to check whether needle is found in haystack.

ng-if="haystack.indexOf(needle) > -1" 

For Angular(2+)

*ngIf="haystack.includes(needle)"

If you include the additional methods file, here's the current file for 1.7: http://ajax.microsoft.com/ajax/jquery.validate/1.7/additional-methods.js

You can use the lettersonly rule :) The additional methods are part of the zip you download, you can always find the latest here.

Here's an example:

$("form").validate({
  rules: {
    myField: { lettersonly: true }
  }
});

It's worth noting, each additional method is independent, you can include that specific one, just place this before your .validate() call:

jQuery.validator.addMethod("lettersonly", function(value, element) {
  return this.optional(element) || /^[a-z]+$/i.test(value);
}, "Letters only please"); 

The FASTEST way, to see all parents, and IN ORDER, just use the built in __mro__

i.e. repr(YOUR_CLASS.__mro__)

>>>
>>>
>>> import getpass
>>> getpass.GetPassWarning.__mro__

outputs, IN ORDER

(<class 'getpass.GetPassWarning'>, <type 'exceptions.UserWarning'>,
<type 'exceptions.Warning'>, <type 'exceptions.Exception'>, 
<type 'exceptions.BaseException'>, <type 'object'>)
>>>

There you have it. The "best" answer right now, has 182 votes (as I am typing this) but this is SO much simpler than some convoluted for loop, looking into bases one class at a time, not to mention when a class extends TWO or more parent classes. Importing and using inspect just clouds the scope unnecessarily. It honestly is a shame people don't know to just use the built-ins

I Hope this Helps!

A fun, simple solution:

for (int i = 0; i < 5; i++) 
  System.out.println("    *********".substring(i, 5 + 2*i));

Actions action = new Actions(driver);
action.sendKeys(Keys.RETURN);

Execute the following command

sudo setfacl -R -m u:<user_name>:rwx /var/www

It will change the permissions of html directory so that you can upload, download and delete the files or directories

For windows machine 
Go to the tomcat directory C:\apache-tomcat-x.0.xx\bin
    bin>version.bat
    Using CATALINA_BASE:   "C:\apache-tomcat-x.0.xx"
    Using CATALINA_HOME:   "C:\apache-tomcat-x.0.xx"
    Using CATALINA_TMPDIR: "C:\apache-tomcat-x.0.xx\temp"
    Using JRE_HOME:        "C:\Program Files\Java\jdk1.8.0_65"
    Using CLASSPATH:       "C:\apache-tomcat-x.0.xx\bin\bootstrap.jar;C:\apache-tomcat-x.0.xx\bin\tomcat-juli.jar"
    Server version: Apache Tomcat/7.0.53





For Linux Machine 
Go to the tomcat directory /usr/mack/apache-tomcat-x.0.xx/bin
    # ./version.sh
    Using CATALINA_BASE:   /usr/mack/apache-tomcat-x.0.xx
    Using CATALINA_HOME:   /usr/mack/apache-tomcat-x.0.xx
    Using CATALINA_TMPDIR: /usr/mack/apache-tomcat-x.0.xx/temp
    Using JRE_HOME:        /usr/java/jdk1.7.0_71/jre
    Using CLASSPATH:       /usr/mack/apache-tomcat-x.0.xx/bin/bootstrap.jar:/usr/mack/apache-tomcat-x.0.xx/bin/tomcat-juli.jar
    Server version: Apache Tomcat/7.0.56

If Tomcat is installed as a service:

#sudo /etc/init.d/tomcat version