Model:

namespace MvcApplicationrazor.Models
{
    public class CountryModel
    {
        public List<State> StateModel { get; set; }
        public SelectList FilteredCity { get; set; }
    }
    public class State
    {
        public int Id { get; set; }
        public string StateName { get; set; }
    }
    public class City
    {
        public int Id { get; set; }
        public int StateId { get; set; }
        public string CityName { get; set; }
    }
}   

Controller:

public ActionResult Index()
        {
            CountryModel objcountrymodel = new CountryModel();
            objcountrymodel.StateModel = new List<State>();
            objcountrymodel.StateModel = GetAllState();
            return View(objcountrymodel);
        }


        //Action result for ajax call
        [HttpPost]
        public ActionResult GetCityByStateId(int stateid)
        {
            List<City> objcity = new List<City>();
            objcity = GetAllCity().Where(m => m.StateId == stateid).ToList();
            SelectList obgcity = new SelectList(objcity, "Id", "CityName", 0);
            return Json(obgcity);
        }
        // Collection for state
        public List<State> GetAllState()
        {
            List<State> objstate = new List<State>();
            objstate.Add(new State { Id = 0, StateName = "Select State" });
            objstate.Add(new State { Id = 1, StateName = "State 1" });
            objstate.Add(new State { Id = 2, StateName = "State 2" });
            objstate.Add(new State { Id = 3, StateName = "State 3" });
            objstate.Add(new State { Id = 4, StateName = "State 4" });
            return objstate;
        }
        //collection for city
        public List<City> GetAllCity()
        {
            List<City> objcity = new List<City>();
            objcity.Add(new City { Id = 1, StateId = 1, CityName = "City1-1" });
            objcity.Add(new City { Id = 2, StateId = 2, CityName = "City2-1" });
            objcity.Add(new City { Id = 3, StateId = 4, CityName = "City4-1" });
            objcity.Add(new City { Id = 4, StateId = 1, CityName = "City1-2" });
            objcity.Add(new City { Id = 5, StateId = 1, CityName = "City1-3" });
            objcity.Add(new City { Id = 6, StateId = 4, CityName = "City4-2" });
            return objcity;
        }

View:

@model MvcApplicationrazor.Models.CountryModel
@{
    ViewBag.Title = "Index";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>
<script language="javascript" type="text/javascript">
    function GetCity(_stateId) {
        var procemessage = "<option value='0'> Please wait...</option>";
        $("#ddlcity").html(procemessage).show();
        var url = "/Test/GetCityByStateId/";

        $.ajax({
            url: url,
            data: { stateid: _stateId },
            cache: false,
            type: "POST",
            success: function (data) {
                var markup = "<option value='0'>Select City</option>";
                for (var x = 0; x < data.length; x++) {
                    markup += "<option value=" + data[x].Value + ">" + data[x].Text + "</option>";
                }
                $("#ddlcity").html(markup).show();
            },
            error: function (reponse) {
                alert("error : " + reponse);
            }
        });

    }
</script>
<h4>
 MVC Cascading Dropdown List Using Jquery</h4>
@using (Html.BeginForm())
{
    @Html.DropDownListFor(m => m.StateModel, new SelectList(Model.StateModel, "Id", "StateName"), new { @id = "ddlstate", @style = "width:200px;", @onchange = "javascript:GetCity(this.value);" })
    <br />
    <br />
    <select id="ddlcity" name="ddlcity" style="width: 200px">

    </select>

    <br /><br />
  }

In case someone comes back to this later... None of the above worked for me. So I dug down into the guts of angular form validation and found the function they call to execute validators on a given field. This property is conveniently called $validate.

If you have a named form myForm, you can programmatically call myForm.my_field.$validate() to execute field validation. For example:

<div ng-form name="myForm">
    <input required name="my_field" type="text" ng-blur="myForm.my_field.$validate()">
</div>

Note that calling $validate has implications for your model. From the angular docs for ngModelCtrl.$validate:

Runs each of the registered validators (first synchronous validators and then asynchronous validators). If the validity changes to invalid, the model will be set to undefined, unless ngModelOptions.allowInvalid is true. If the validity changes to valid, it will set the model to the last available valid $modelValue, i.e. either the last parsed value or the last value set from the scope.

So if you're planning on doing something with the invalid model value (like popping a message telling them so), then you need to make sure allowInvalid is set to true for your model.

As there is no implementation of a variable it can't be abstract ;)

I'd been trying to build a menu (in Camping and Markaby) using a hash.

Each item has 2 elements: a menu label and a URL, so a hash seemed right, but the '/' URL for 'Home' always appeared last (as you'd expect for a hash), so menu items appeared in the wrong order.

Using an array with each_slice does the job:

['Home', '/', 'Page two', 'two', 'Test', 'test'].each_slice(2) do|label,link|
   li {a label, :href => link}
end

Adding extra values for each menu item (e.g. like a CSS ID name) just means increasing the slice value. So, like a hash but with groups consisting of any number of items. Perfect.

So this is just to say thanks for inadvertently hinting at a solution!

Obvious, but worth stating: I suggest checking if the length of the array is divisible by the slice value.

Try promise-abortable: https://www.npmjs.com/package/promise-abortable

$ npm install promise-abortable

import AbortablePromise from "promise-abortable";

const timeout = new AbortablePromise((resolve, reject, signal) => {
  setTimeout(reject, timeToLive, error);
  signal.onabort = resolve;
});

Promise.resolve(fn()).then(() => {
  timeout.abort();
});

This is a known bug on the initial 2.5.1, and has been fixed in early 2007 (Redhat 2.5.1-5) according to the bug reports. Unfortunately Apple is still using 2.5.1 even on Mac OS X 10.7.2.

You could get a newer version via Homebrew (3.0) or MacPorts (2.26) or fink (3.0-1).

Edit: Apparently it has been fixed on OS X 10.11 (or maybe earlier), even though the grep version reported is still 2.5.1.

hasOwnProperty expects the property name as a string, so it would be shape1.hasOwnProperty("name")

Personally I like it this way:

DateTime.Now.ToString("yyyy-MM-dd HH.mm.ss")

Because it distinguishes between the date and the time.

This function will produce required table as list of tuples.

def get_documents_by_user_email(email):
    query = session.query(
       User.email, 
       User.name, 
       Document.name, 
       DocumentsPermissions.readAllowed, 
       DocumentsPermissions.writeAllowed,
    )
    join_query = query.join(Document).join(DocumentsPermissions)

    return join_query.filter(User.email == email).all()

user_docs = get_documents_by_user_email(email)

Well I threw together a test program that ran each of these methods 100,000 times, half on files that existed and half on files that didn't.

#include <sys/stat.h>
#include <unistd.h>
#include <string>
#include <fstream>

inline bool exists_test0 (const std::string& name) {
    ifstream f(name.c_str());
    return f.good();
}

inline bool exists_test1 (const std::string& name) {
    if (FILE *file = fopen(name.c_str(), "r")) {
        fclose(file);
        return true;
    } else {
        return false;
    }   
}

inline bool exists_test2 (const std::string& name) {
    return ( access( name.c_str(), F_OK ) != -1 );
}

inline bool exists_test3 (const std::string& name) {
  struct stat buffer;   
  return (stat (name.c_str(), &buffer) == 0); 
}

Results for total time to run the 100,000 calls averaged over 5 runs,

The stat() function provided the best performance on my system (Linux, compiled with g++), with a standard fopen call being your best bet if you for some reason refuse to use POSIX functions.

Another option is to update the Microsoft.AspnNet.Mvc NuGet package. Be careful, because NuGet update does not update the Web.Config. You should update all previous version numbers to updated number. For example if you update from asp.net MVC 4.0.0.0 to 5.0.0.0, then this should be replaced in the Web.Config:

    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
    </sectionGroup>
  </configSections>

 <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />

<pages
    validateRequest="false"
    pageParserFilterType="System.Web.Mvc.ViewTypeParserFilter, System.Web.Mvc, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
    pageBaseType="System.Web.Mvc.ViewPage, System.Web.Mvc, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
    userControlBaseType="System.Web.Mvc.ViewUserControl, System.Web.Mvc, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
  <controls>
    <add assembly="System.Web.Mvc, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" namespace="System.Web.Mvc" tagPrefix="mvc" />
  </controls>
</pages>

It solved for me using

checkout scm: ([
                    $class: 'GitSCM',
                    userRemoteConfigs: [[credentialsId: '******',url: ${project_url}]],
                    branches: [[name: 'refs/tags/${project_tag}']]
            ])

If you want to execute a local script remotely without saving that script remotely you can do it like this:

cat local_script.sh | ssh user@remotehost 'bash -'

It works like a charm for me.

I do that even from Windows to Linux given that you have MSYS installed on your Windows computer.

You can launch the shutdown process:

• shutdown -s -t 0 - Shutdown
• shutdown -r -t 0 - Restart

$file="./doc.txt";
$doc=file_get_contents($file);

$line=explode("\n",$doc);
foreach($line as $newline){
    echo '<h3 style="color:#453288">'.$newline.'</h3><br>';

}

I like this method of redirecting from http to https. Because I don't need to edit it for each site.

RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R,L]

By default Jsonresult "Deny get"

Suppose if we have method like below

  [HttpPost]
 public JsonResult amc(){}

By default it "Deny Get".

In the below method

public JsonResult amc(){}

When you need to allowget or use get ,we have to use JsonRequestBehavior.AllowGet.

public JsonResult amc()
{
 return Json(new Modle.JsonResponseData { Status = flag, Message = msg, Html = html }, JsonRequestBehavior.AllowGet);
}

This is a bug in .NET. When PowerShell launches, it caches the output handle (Console.Out). The Encoding property of that text writer does not pick up the value StandardOutputEncoding property.

When you change it from within PowerShell, the Encoding property of the cached output writer returns the cached value, so the output is still encoded with the default encoding.

As a workaround, I would suggest not changing the encoding. It will be returned to you as a Unicode string, at which point you can manage the encoding yourself.

Caching example:

102 [C:\Users\leeholm]
>> $r1 = [Console]::Out

103 [C:\Users\leeholm]
>> $r1

Encoding                                          FormatProvider
--------                                          --------------
System.Text.SBCSCodePageEncoding                  en-US



104 [C:\Users\leeholm]
>> [Console]::OutputEncoding = [System.Text.Encoding]::UTF8

105 [C:\Users\leeholm]
>> $r1

Encoding                                          FormatProvider
--------                                          --------------
System.Text.SBCSCodePageEncoding                  en-US

return ((parseInt(str, 10).toString() == str) && str.indexOf('-') === -1);

won't work if you give a string like '0001' though

Null OR an empty string?

if (!empty($user)) {}

Use empty().

After realizing that $user ~= $_POST['user'] (thanks matt):

var uservariable='<?php 
    echo ((array_key_exists('user',$_POST)) || (!empty($_POST['user']))) ? $_POST['user'] : 'Empty Username Input';
?>';

Try this code. I also faced the same problem, but some how I solved it.

public class KitchenUserInterface {

    private JFrame frame;
    private JPanel main_panel, northpanel , southpanel;
    private JLabel label;
    private JButton nextOrder;
    private JList list;

    private static KitchenUserInterface kitchenRunner ;

    public void setList(String[] order){
        kitchenRunner.frame.dispose();
        kitchenRunner.frame.setVisible(false);
        kitchenRunner= new KitchenUserInterface(order);

    }

    public KitchenUserInterface getInstance() {
        if(kitchenRunner == null) {
            synchronized(KitchenUserInterface.class) {
                if(kitchenRunner == null) {
                    kitchenRunner = new KitchenUserInterface();
                }
            }
        }


        return this.kitchenRunner;
    }

    private KitchenUserInterface() {


        frame = new JFrame("Lullaby's Kitchen");
        main_panel = new JPanel();
        main_panel.setLayout(new BorderLayout());
        frame.setContentPane(main_panel);



        northpanel = new JPanel();
        northpanel.setLayout(new FlowLayout());


        label = new JLabel("Kitchen");

        northpanel.add(label);


        main_panel.add(northpanel , BorderLayout.NORTH);


        frame.setSize(500 , 500 );
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    private KitchenUserInterface (String[] order){
        this();
        list = new JList<String>(order);
        main_panel.add(list , BorderLayout.CENTER);

        southpanel = new JPanel();
         southpanel.setLayout(new FlowLayout());

         nextOrder = new JButton("Next Order Set");
         nextOrder.addActionListener(new OrderUpListener(list));
         southpanel.add(nextOrder);
         main_panel.add(southpanel, BorderLayout.SOUTH);



    }

    public static void main(String[] args) {
        KitchenUserInterface dat = kitchenRunner.getInstance();
        try{

        Thread.sleep(1500);
        System.out.println("Ready");
        dat.setList(OrderArray.getInstance().getOrders());
        }
        catch(Exception event) {
            System.out.println("Error sleep");
            System.out.println(event);
        }


        }

}

After doing some research, it seems I cannot have two connections opened to the same database with the TransactionScope block. I needed to modify my code to look like this:

public void MyAddUpdateMethod()
{
    using (TransactionScope Scope = new TransactionScope(TransactionScopeOption.RequiresNew))
    {
        using(SQLServer Sql = new SQLServer(this.m_connstring))
        {
            //do my first add update statement            
        }

        //removed the method call from the first sql server using statement
        bool DoesRecordExist = this.SelectStatementCall(id)
    }
}

public bool SelectStatementCall(System.Guid id)
{
    using(SQLServer Sql = new SQLServer(this.m_connstring))
    {
        //create parameters
    }
}

MSSQL requires that variables within procedures be DECLAREd and folks use the @Variable syntax (DECLARE @TEXT VARCHAR(25) = 'text'). Also, MS allows for declares within any block in the procedure, unlike mySQL which requires all the DECLAREs at the top.

While good on the command line, I feel using the "set = @variable" within stored procedures in mySQL is risky. There is no scope and variables live across scope boundaries. This is similar to variables in JavaScript being declared without the "var" prefix, which are then the global namespace and create unexpected collisions and overwrites.

I am hoping that the good folks at mySQL will allow DECLARE @Variable at various block levels within a stored procedure. Notice the @ (at sign). The @ sign prefix helps to separate variable names from table column names - as they are often the same. Of course, one can always add an "v" or "l_" prefix, but the @ sign is a handy and succinct way to have the variable name match the column you might be extracting the data from without clobbering it.

MySQL is new to stored procedures and they have done a good job for their first version. It will be a pleaure to see where they take it form here and to watch the server side aspects of the language mature.

Many of the above answers are correct, but remember that by default the debugger will listen on localhost, which means you can debug only if you're running the debugging client (for example, the IDE) on the same machine.

If you are debugging a remote server you will need to specify the correct IP address on that server to listen on, for example

JPDA_OPTS="-agentlib:jdwp=transport=dt_socket,address=10.1.1.33:8000,server=y,suspend=n"

catalina.sh jpda start

Note that the address is now 10.1.1.33:8000

Of course, you can also check which IP is actually being used, by running

netstat -an

This command is valid on both windows and Linux - you just need to filter out the port with find (Windows) or grep (Linux).

Might very well be the Console.ReadLine blocking your callback's Console.Writeline, in fact. The sample on MSDN looks ALMOST identical, except they use ReadKey (which doesn't lock the console).

open command prompt and run the following commands (assuming python 2.7):

cd c:\Python27\scripts\
pip install opencv-python

the above works for me for python 2.7 on windows 10 64 bit

You have a risk of NullPointerException if your calculateStr() method returns null and then you try to call a method on str.

More generally, avoid having variables with a null value. It stronger for class attributes, by the way.

document.querySelectorAll('input[type=search]').forEach(function (input) {
   input.addEventListener('mouseup', function (e) {
                if (input.value.length > 0) {
                    setTimeout(function () {
                        if (input.value.length === 0) {
                            //do reset action here
                        }
                    }, 5);
                }
            });
}

ECMASCRIPT 2016

For those who use jQuery UI:

jQuery UI has overridden some of the jQuery methods to implement a remove event that gets handled not only when you explicitly remove the given element, but also if the element gets removed from the DOM by any self-cleaning jQuery methods (e.g. replace, html, etc.). This basically allows you to put a hook into the same events that get fired when jQuery is "cleaning up" the events and data associated with a DOM element.

John Resig has indicated that he's open to the idea of implementing this event in a future version of jQuery core, but I'm not sure where it stands currently.

Mod(x,1) is the easiest way I think.

I would like to expand on the Windows solution. Using IDLE with Python 2.7.5, When I run this code from file Expts.py:

import subprocess
r = subprocess.check_output('cmd.exe dir',shell=False) 
print r

...in the Python Shell, I ONLY get the output corresponding to "cmd.exe"; the "dir" part is ignored. HOWEVER, when I add a switch such as /K or /C ...

import subprocess
r = subprocess.check_output('cmd.exe /K dir',shell=False) 
print r

...then in the Python Shell, I get all that I expect including the directory listing. Woohoo !

Now, if I try any of those same things in DOS Python command window, without the switch, or with the /K switch, it appears to make the window hang because it is running a subprocess cmd.exe and it awaiting further input - type 'exit' then hit [enter] to release. But with the /K switch it works perfectly and returns you to the python prompt. Allrightee then.

Went a step further...I thought this was cool...When I instead do this in Expts.py:

import subprocess
r = subprocess.call("cmd.exe dir",shell=False) 
print r

...a new DOS window pops open and remains there displaying only the results of "cmd.exe" not of "dir". When I add the /C switch, the DOS window opens and closes very fast before I can see anything (as expected, because /C terminates when done). When I instead add the /K switch, the DOS window pops open and remain, AND I get all the output I expect including the directory listing.

If I try the same thing (subprocess.call instead of subprocess.check_output) from a DOS Python command window; all output is within the same window, there are no popup windows. Without the switch, again the "dir" part is ignored, AND the prompt changes from the python prompt to the DOS prompt (since a cmd.exe subprocess is running in python; again type 'exit' and you will revert to the python prompt). Adding the /K switch prints out the directory listing and changes the prompt from python to DOS since /K does not terminate the subprocess. Changing the switch to /C gives us all the output expected AND returns to the python prompt since the subprocess terminates in accordance with /C.

Sorry for the long-winded response, but I am frustrated on this board with the many terse 'answers' which at best don't work (seems because they are not tested - like Eduard F's response above mine which is missing the switch) or worse, are so terse that they don't help much at all (e.g., 'try subprocess instead of os.system' ... yeah, OK, now what ??). In contrast, I have provided solutions which I tested, and showed how there are subtle differences between them. Took a lot of time but... Hope this helps.

The way you import a .cer file into the trust store is the same way you'd import a .crt file from say an export from Firefox.

You do not have to put an alias and the password of the keystore, you can just type:

keytool -v -import -file somefile.crt  -alias somecrt -keystore my-cacerts

Preferably use the cacerts file that is already in your Java installation (jre\lib\security\cacerts) as it contains secure "popular" certificates.

Update regarding the differences of cer and crt (just to clarify) According to Apache with SSL - How to convert CER to CRT certificates? and user @Spawnrider

CER is a X.509 certificate in binary form, DER encoded.
CRT is a binary X.509 certificate, encapsulated in text (base-64) encoding.
It is not the same encoding.

Unless you need a custom date and time format, it's easier, less error-prone, and more readable to use one of the built-in date time format constants:

echo date(DATE_RFC822, 1368496604);

Bash 4's brace expansion has a step feature:

for {0..10..2}; do
  ..
done

No matter if Bash 2/3 (C-style for loop, see answers above) or Bash 4, I would prefer anything over the 'seq' command.

1. Check if any other container is running, If yes, do: docker-compose down

2. If VPN is connected, then disconnect it and try again to up docker container:

   docker-compose up -d container_name
   

This works:

var img = document.createElement('img');
img.src = 'img/eqp/' + this.apparel + '/' + this.facing + '_idle.png';
document.getElementById('gamediv').appendChild(img)

Or using jQuery:

$('<img/>')
.attr('src','img/eqp/' + this.apparel + '/' + this.facing + '_idle.png')
.appendTo('#gamediv');

Here is a script I used for recursive trimming. Replace $1 with the directory you want, of course.

BASEDIR="$1"
IFS=$'\n'
cd $BASEDIR
 for f in $(find . -type f -name ' *')
 do 
    DIR=$(dirname "$f")
    DIR=${DIR:1}
    cd $BASEDIR$DIR
    rename 's/^ *//' *
 done

@Paul Cavacas, I had the same issue and I solved by setting the Input() decorator above the getter.

  @Input('allowDays')
  get in(): any {
    return this._allowDays;
  }

  //@Input('allowDays')
  // not working
  set in(val) {
    console.log('allowDays = '+val);
    this._allowDays = val;
  }

See this plunker: https://plnkr.co/edit/6miSutgTe9sfEMCb8N4p?p=preview

FAQ says:

If you have

varname <- c("a", "b", "d")

you can do

get(varname[1]) + 2

for

a + 2

or

assign(varname[1], 2 + 2)

for

a <- 2 + 2

So it looks like you use GET when you want to evaluate a formula that uses a variable (such as a concatenate), and ASSIGN when you want to assign a value to a pre-declared variable.

Syntax for assign: assign(x, value)

x: a variable name, given as a character string. No coercion is done, and the first element of a character vector of length greater than one will be used, with a warning.

value: value to be assigned to x.

The :nth-child() and :nth-of-type() pseudo-classes allows you to select elements with a formula.

The syntax is :nth-child(an+b), where you replace a and b by numbers of your choice.

For instance, :nth-child(3n+1) selects the 1st, 4th, 7th etc. child.

td:nth-child(3n+1) {  
  /* your stuff here */
}

:nth-of-type() works the same, except that it only considers element of the given type ( in the example).

A slight improvement to Bizzard's excellent answer. Supports width-offset and/or height-offset on the element, to determine how much will be subtracted from the width/height, and prevents negative dimensions.

 <div resize height-offset="260" width-offset="100">

directive:

app.directive('resize', ['$window', function ($window) {
    return function (scope, element) {
        var w = angular.element($window);
        var heightOffset = parseInt(element.attr('height-offset'));
        var widthOffset = parseInt(element.attr('width-offset'));
        var changeHeight = function () {
            if (!isNaN(heightOffset) && w.height() - heightOffset > 0)
                element.css('height', (w.height() - heightOffset) + 'px');
            if (!isNaN(widthOffset) && w.width() - widthOffset > 0)
                element.css('width', (w.width() - widthOffset) + 'px');
        };
        w.bind('resize', function () {
            changeHeight();
        });
        changeHeight();
    }
}]);

Edit This is actually a silly way of doing it in modern browsers. CSS3 has calc, which allows the calculation to be specified in CSS, like this:

#myDiv {
 width: calc(100% - 200px);
 height: calc(100% - 120px);
}

http://caniuse.com/#search=calc

Double quotes not worked for me, it worked for me \". If you want to place a double quotes as example you can set \"\".

You can build formulas, as example:

fprintf(strout, "\"=if(C3=1,\"\"\"\",B3)\"\n");

will write in csv:

=IF(C3=1,"",B3)

In fact, in R, this operation is very easy:

If the matrix 'a' contains some NaN, you just need to use the following code to replace it by 0:

a <- matrix(c(1, NaN, 2, NaN), ncol=2, nrow=2)
a[is.nan(a)] <- 0
a

If the data frame 'b' contains some NaN, you just need to use the following code to replace it by 0:

#for a data.frame: 
b <- data.frame(c1=c(1, NaN, 2), c2=c(NaN, 2, 7))
b[is.na(b)] <- 0
b

Note the difference is.nan when it's a matrix vs. is.na when it's a data frame.

Doing

#...
b[is.nan(b)] <- 0
#...

yields: Error in is.nan(b) : default method not implemented for type 'list' because b is a data frame.

Note: Edited for small but confusing typos

If you use Grunt you can add a task in order to remove/comment the console.log statements. Therefore the console.log are no longer called.

https://www.npmjs.org/package/grunt-remove-logging-calls

You could construct a dataframe from the series and then merge with the dataframe. So you specify the data as the values but multiply them by the length, set the columns to the index and set params for left_index and right_index to True:

In [27]:

df.merge(pd.DataFrame(data = [s.values] * len(s), columns = s.index), left_index=True, right_index=True)
Out[27]:
   a  b  s1  s2
0  1  3   5   6
1  2  4   5   6

EDIT for the situation where you want the index of your constructed df from the series to use the index of the df then you can do the following:

df.merge(pd.DataFrame(data = [s.values] * len(df), columns = s.index, index=df.index), left_index=True, right_index=True)

This assumes that the indices match the length.

Like this http://jsfiddle.net/8ha9e/1/

Add colspan="2" to the 3rd <th> and then have 4 <td>'s in your second row.

<table border="1">
  <tr>
    <th scope="col">Header</th>
    <th scope="col">Header</th>
    <th scope="col" colspan="2">Header</th>
  </tr>
  <tr>
    <th scope="row">&nbsp;</th>
    <td>&nbsp;</td>
    <!-- The following two cells will appear under the same header -->
    <td>Col 1</td>
    <td>Col 2</td>
  </tr>
</table>

String jsonInput = "{ \"hi\": \"Assume this is the JSON\"} ";
com.fasterxml.jackson.databind.ObjectMapper mapper =
    new com.fasterxml.jackson.databind.ObjectMapper();
MyClass myObject = objectMapper.readValue(jsonInput, MyClass.class);

If your JSON input in has more properties than your POJO has and you just want to ignore the extras in Jackson 2.4, you can configure your ObjectMapper as follows. This syntax is different from older Jackson versions. (If you use the wrong syntax, it will silently do nothing.)

mapper.disable(com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNK??NOWN_PROPERTIES);

The rest of the sentence is:

where only structure (e.g., elements, comments, processing instructions, CDATA sections, and entity references) separates Text nodes, i.e., there are neither adjacent Text nodes nor empty Text nodes.

This basically means that the following XML element

<foo>hello 
wor
ld</foo>

could be represented like this in a denormalized node:

Element foo
    Text node: ""
    Text node: "Hello "
    Text node: "wor"
    Text node: "ld"

When normalized, the node will look like this

Element foo
    Text node: "Hello world"

And the same goes for attributes: <foo bar="Hello world"/>, comments, etc.

PowerShell 3 has the $PSScriptRoot automatic variable:

Contains the directory from which a script is being run.

In Windows PowerShell 2.0, this variable is valid only in script modules (.psm1). Beginning in Windows PowerShell 3.0, it is valid in all scripts.

Don't be fooled by the poor wording. PSScriptRoot is the directory of the current file.

In PowerShell 2, you can calculate the value of $PSScriptRoot yourself:

# PowerShell v2
$PSScriptRoot = Split-Path -Parent -Path $MyInvocation.MyCommand.Definition

There is a get method in HashMap:

for (String keys : objectSet.keySet())  
{
   System.out.println(keys + ":"+ objectSet.get(keys));
}

This one worked for me

button:focus {
    border: none;
    outline: none;
}

You can easily equip your script with a mechanism for constants that can be set but not altered. An attempt to alter them will generate an error.

/* author Keith Evetts 2009 License: LGPL  
anonymous function sets up:  
global function SETCONST (String name, mixed value)  
global function CONST (String name)  
constants once set may not be altered - console error is generated  
they are retrieved as CONST(name)  
the object holding the constants is private and cannot be accessed from the outer script directly, only through the setter and getter provided  
*/

(function(){  
  var constants = {};  
  self.SETCONST = function(name,value) {  
      if (typeof name !== 'string') { throw new Error('constant name is not a string'); }  
      if (!value) { throw new Error(' no value supplied for constant ' + name); }  
      else if ((name in constants) ) { throw new Error('constant ' + name + ' is already defined'); }   
      else {   
          constants[name] = value;   
          return true;  
    }    
  };  
  self.CONST = function(name) {  
      if (typeof name !== 'string') { throw new Error('constant name is not a string'); }  
      if ( name in constants ) { return constants[name]; }    
      else { throw new Error('constant ' + name + ' has not been defined'); }  
  };  
}())  


// -------------  demo ----------------------------  
SETCONST( 'VAT', 0.175 );  
alert( CONST('VAT') );


//try to alter the value of VAT  
try{  
  SETCONST( 'VAT', 0.22 );  
} catch ( exc )  {  
   alert (exc.message);  
}  
//check old value of VAT remains  
alert( CONST('VAT') );  


// try to get at constants object directly  
constants['DODO'] = "dead bird";  // error  

You can do it like this:

$str = "abc-123-xyz-789";
$arr = explode('-', $str);
$last = array_pop( $arr );
echo $last; //echoes 789

Use restart: always in your docker compose file.

Docker-compose up -d will launch container from images again. Use docker-compose start to start the stopped containers, it never launches new containers from images.

nginx:   
    restart: always   
    image: nginx   
    ports:
      - "80:80"
      - "443:443"   links:
      - other_container:other_container

Also you can write the code up in the docker file so that it gets created first, if it has the dependency of other containers.

Haven't tested it, but that should alert the blobs data url:

var blob = event.clipboardData.items[0].getAsFile(), 
    form = new FormData(),
    request = new XMLHttpRequest();

var reader = new FileReader();
reader.onload = function(event) {
  alert(event.target.result); // <-- data url
};
reader.readAsDataURL(blob);

i made a little change to this code to save entry of a radio button but unable to save the text which appears in text box after selecting the radio button.

the code is below:-

    <!DOCTYPE html>
<html>
<head>
<style>
form * {
  display: block;
  margin: 10px;
}
</style>
<script language="Javascript" >
function download(filename, text) {
  var pom = document.createElement('a');
  pom.setAttribute('href', 'data:text/plain;charset=utf-8,' + 

encodeURIComponent(text));
  pom.setAttribute('download', filename);

  pom.style.display = 'none';
  document.body.appendChild(pom);

  pom.click();

  document.body.removeChild(pom);
}
</script>
</head>
<body>

<form onsubmit="download(this['name'].value, this['text'].value)">
  <input type="text" name="name" value="test.txt">
  <textarea rows=3 cols=50 name="text">PLEASE WRITE ANSWER HERE. </textarea>
<input type="radio" name="radio" value="Option 1" onclick="getElementById('problem').value=this.value;"> Option 1<br>
<input type="radio" name="radio" value="Option 2" onclick="getElementById('problem').value=this.value;"> Option 2<br>
<form onsubmit="download(this['name'].value, this['text'].value)">
<input type="text" name="problem" id="problem">
  <input type="submit" value="SAVE">
</form>
</body>
</html>

You can call a service from your controller that returns a promise and then use it in your controller. And further use $emit or $broadcast to inform other controllers about it. In my case, I had to make http calls through my service, so I did something like this :

function ParentController($scope, testService) {
    testService.getList()
        .then(function(data) {
            $scope.list = testService.list;
        })
        .finally(function() {
            $scope.$emit('listFetched');
        })


    function ChildController($scope, testService) {
        $scope.$on('listFetched', function(event, data) {
            // use the data accordingly
        })
    }

and my service looks like this

    app.service('testService', ['$http', function($http) {

        this.list = [];

        this.getList = function() {
            return $http.get(someUrl)
                .then(function(response) {
                    if (typeof response.data === 'object') {
                        list = response.data.results;

                        return response.data;
                    } else {
                        // invalid response
                        return $q.reject(response.data);
                    }

                }, function(response) {
                    // something went wrong
                    return $q.reject(response.data);
                });

        }

    }])

Use a regular for loop and format the index to be used in the selector.

var array = [];
for (var i = 0; i < 4; i++) {
    var selector = '' + i;
    if (selector.length == 1)
        selector = '0' + selector;
    selector = '#event' + selector;
    array.push($(selector, response).html());
}

They should be equal. The for loop you wrote is doing exactly the same thing that the while loop is doing: setting $i=0, printing $i, and incrementing $i at the end of the loop.

Update: Two lightweight CSS solutions:

Using flex, flex-flow and order:

Example1: Demo Fiddle

    body{
        display:flex;
        flex-flow: column;
    }
    #blockA{
        order:4;
    }
    #blockB{
        order:3;
    }
    #blockC{
        order:2;
    }

Alternatively, reverse the Y scale:

Example2: Demo Fiddle

body{
    -webkit-transform: scaleY(-1);
    transform: scaleY(-1);
}
div{
    -webkit-transform: scaleY(-1);
    transform: scaleY(-1);
}

if (isset($_POST['remove'])) {
    $key=array_search($_GET['name'],$_SESSION['name']);
    if($key!==false)
    unset($_SESSION['name'][$key]);
    $_SESSION["name"] = array_values($_SESSION["name"]);
} 

Since $_SESSION['name'] is an array, you need to find the array key that points at the name value you're interested in. The last line rearranges the index of the array for the next use.

Iterator through keySet will give you keys. You should use entrySet if you want to iterate entries.

HashMap hm = new HashMap();

hm.put(0, "zero");
hm.put(1, "one");

Iterator iter = (Iterator) hm.entrySet().iterator();

while(iter.hasNext()) {

    Map.Entry entry = (Map.Entry) iter.next();
    System.out.println(entry.getKey() + " - " + entry.getValue());

}

The enumerate() function adds a counter to an iterable.

So for each element in cursor, a tuple is produced with (counter, element); the for loop binds that to row_number and row, respectively.

Demo:

>>> elements = ('foo', 'bar', 'baz')
>>> for elem in elements:
...     print elem
... 
foo
bar
baz
>>> for count, elem in enumerate(elements):
...     print count, elem
... 
0 foo
1 bar
2 baz

By default, enumerate() starts counting at 0 but if you give it a second integer argument, it'll start from that number instead:

>>> for count, elem in enumerate(elements, 42):
...     print count, elem
... 
42 foo
43 bar
44 baz

If you were to re-implement enumerate() in Python, here are two ways of achieving that; one using itertools.count() to do the counting, the other manually counting in a generator function:

from itertools import count

def enumerate(it, start=0):
    # return an iterator that adds a counter to each element of it
    return zip(count(start), it)

and

def enumerate(it, start=0):
    count = start
    for elem in it:
        yield (count, elem)
        count += 1

The actual implementation in C is closer to the latter, with optimisations to reuse a single tuple object for the common for i, ... unpacking case and using a standard C integer value for the counter until the counter becomes too large to avoid using a Python integer object (which is unbounded).

Use this lean and short syntax:

{ this.state.show && <MyCustomComponent /> }

The accepted answer is perfect. I had a related but slightly different situation where I had to fill in forward but only within groups. In case someone has the same need, know that fillna works on a DataFrameGroupBy object.

>>> example = pd.DataFrame({'number':[0,1,2,nan,4,nan,6,7,8,9],'name':list('aaabbbcccc')})
>>> example
  name  number
0    a     0.0
1    a     1.0
2    a     2.0
3    b     NaN
4    b     4.0
5    b     NaN
6    c     6.0
7    c     7.0
8    c     8.0
9    c     9.0
>>> example.groupby('name')['number'].fillna(method='ffill') # fill in row 5 but not row 3
0    0.0
1    1.0
2    2.0
3    NaN
4    4.0
5    4.0
6    6.0
7    7.0
8    8.0
9    9.0
Name: number, dtype: float64

You can add one option to your build for production:

-localWorkers 8 – Where 8 is the number of concurrent threads that calculate permutations. All you have to do is to adjust this number to the number that is more convenient to you. See GWT compilation performance (thanks to Dennis Ich comment).

If you are compiling to the testing environment, you can also use:

-draftCompile which enables faster, but less-optimized compilations

-optimize 0 which does not optimize your code (9 is the max optimization value)

Another thing that more than doubled the build and hosted mode performance was the use of an SSD disk (now hostedmode works like a charm). It's not an cheap solution, but depending on how much you use GWT and the cost of your time, it may worth it!

Hope this helps you!

IIRC Code Behind is compiled serverside and javascript is interpreted client side. This means there is no direct link between the two.

What you can do on the other hand is have the client and server communicate through a nifty tool called AJAX. http://en.wikipedia.org/wiki/Asynchronous_JavaScript_and_XML

As I understand it, you want the server be able to send messages through from client 1 to client 2. You cannot directly connect two clients because one of the two ends of a WebSocket connection needs to be a server.

This is some pseudocodish JavaScript:

Client:

var websocket = new WebSocket("server address");

websocket.onmessage = function(str) {
  console.log("Someone sent: ", str);
};

// Tell the server this is client 1 (swap for client 2 of course)
websocket.send(JSON.stringify({
  id: "client1"
}));

// Tell the server we want to send something to the other client
websocket.send(JSON.stringify({
  to: "client2",
  data: "foo"
}));

Server:

var clients = {};

server.on("data", function(client, str) {
  var obj = JSON.parse(str);

  if("id" in obj) {
    // New client, add it to the id/client object
    clients[obj.id] = client;
  } else {
    // Send data to the client requested
    clients[obj.to].send(obj.data);
  }
});

In my experience, it's not quite that simple. The built-in PHP SOAP client didn't work with the .NET-based SOAP server we had to use. It complained about an invalid schema definition. Even though .NET client worked with that server just fine. By the way, let me claim that SOAP interoperability is a myth.

The next step was NuSOAP. This worked for quite a while. By the way, for God's sake, don't forget to cache WSDL! But even with WSDL cached users complained the damn thing is slow.

Then, we decided to go bare HTTP, assembling the requests and reading the responses with SimpleXMLElemnt, like this:

$request_info = array();

$full_response = @http_post_data(
    'http://example.com/OTA_WS.asmx',
    $REQUEST_BODY,
    array(
        'headers' => array(
            'Content-Type' => 'text/xml; charset=UTF-8',
            'SOAPAction'   => 'HotelAvail',
        ),
        'timeout' => 60,

    ),
    $request_info
);

$response_xml = new SimpleXMLElement(strstr($full_response, '<?xml'));

foreach ($response_xml->xpath('//@HotelName') as $HotelName) {
    echo strval($HotelName) . "\n";
}

Note that in PHP 5.2 you'll need pecl_http, as far as (surprise-surpise!) there's no HTTP client built in.

Going to bare HTTP gained us over 30% in SOAP request times. And from then on we redirect all the performance complains to the server guys.

In the end, I'd recommend this latter approach, and not because of the performance. I think that, in general, in a dynamic language like PHP there's no benefit from all that WSDL/type-control. You don't need a fancy library to read and write XML, with all that stubs generation and dynamic proxies. Your language is already dynamic, and SimpleXMLElement works just fine, and is so easy to use. Also, you'll have less code, which is always good.

It's simple math. Given a number X and a rounding factor N, the formula would be:

round(X / N)*N

1. a macro:

   #define stringWithLiteral(literal) @#literal
   

2. an enum:

   typedef NS_ENUM(NSInteger, EnumType) {
       EnumType0,
       EnumType1,
       EnumType2
   };
   

3. an array:

   static NSString * const EnumTypeNames[] = {
       stringWithLiteral(EnumType0),
       stringWithLiteral(EnumType1),
       stringWithLiteral(EnumType2)
   };
   

4. using:

   EnumType enumType = ...;
   NSString *enumName = EnumTypeNames[enumType];
   

==== EDIT ====

Copy the following code to your project and run.

#define stringWithLiteral(literal) @#literal

typedef NS_ENUM(NSInteger, EnumType) {
    EnumType0,
    EnumType1,
    EnumType2
};

static NSString * const EnumTypeNames[] = {
    stringWithLiteral(EnumType0),
    stringWithLiteral(EnumType1),
    stringWithLiteral(EnumType2)
};

- (void)test {
    EnumType enumType = EnumType1;
    NSString *enumName = EnumTypeNames[enumType];
    NSLog(@"enumName: %@", enumName);
}

Warning No appenders could be found for logger means that you're using log4j logging system, but you haven't added any Appenders (such as FileAppender, ConsoleAppender, SocketAppender, SyslogAppender, etc.) into your configuration file or the configuration file is missing.

There are three ways to configure log4j: with a properties file (log4j.properties), with an XML file and through Java code (rootLogger.addAppender(new NullAppender());).

If you've property file present (e.g. when installing Solr), you need to place this file within your classpath directory.

classpath

Here are some command suggestions how to determine your classpath value:

$ echo $CLASSPATH
$ ps wuax | grep -i classpath
$ grep -Ri classpath /etc/tomcat? /var/lib/tomcat?/conf

or from Java: System.getProperty("java.class.path").

Tomcat

If you're using Tomcat, you may place your log4j.properties into: /usr/share/tomcat?/lib/ or /var/lib/tomcat?/webapps/*/WEB-INF/lib/ folder.

Solr

For the reference, Solr log4j.properties looks like:

#  Logging level
solr.log=logs/
log4j.rootLogger=INFO, file, CONSOLE

log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender

log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%-4r [%t] %-5p %c %x \u2013 %m%n

#- size rotation with log cleanup.
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.MaxFileSize=4MB
log4j.appender.file.MaxBackupIndex=9

#- File to log to and log format
log4j.appender.file.File=${solr.log}/solr.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%-5p - %d{yyyy-MM-dd HH:mm:ss.SSS}; %C; %m\n

log4j.logger.org.apache.zookeeper=WARN
log4j.logger.org.apache.hadoop=WARN

# set to INFO to enable infostream log messages
log4j.logger.org.apache.solr.update.LoggingInfoStream=OFF

I solved the same error with the Path.Combine(MapPath()) to get the physical file path instead of the http:/// www one.

No, the methods don't need to be synchronized, and you don't need to define any methods; they are already in ConcurrentLinkedQueue, just use them. ConcurrentLinkedQueue does all the locking and other operations you need internally; your producer(s) adds data into the queue, and your consumers poll for it.

First, create your queue:

Queue<YourObject> queue = new ConcurrentLinkedQueue<YourObject>();

Now, wherever you are creating your producer/consumer objects, pass in the queue so they have somewhere to put their objects (you could use a setter for this, instead, but I prefer to do this kind of thing in a constructor):

YourProducer producer = new YourProducer(queue);

and:

YourConsumer consumer = new YourConsumer(queue);

and add stuff to it in your producer:

queue.offer(myObject);

and take stuff out in your consumer (if the queue is empty, poll() will return null, so check it):

YourObject myObject = queue.poll();

For more info see the Javadoc

EDIT:

If you need to block waiting for the queue to not be empty, you probably want to use a LinkedBlockingQueue, and use the take() method. However, LinkedBlockingQueue has a maximum capacity (defaults to Integer.MAX_VALUE, which is over two billion) and thus may or may not be appropriate depending on your circumstances.

If you only have one thread putting stuff into the queue, and another thread taking stuff out of the queue, ConcurrentLinkedQueue is probably overkill. It's more for when you may have hundreds or even thousands of threads accessing the queue at the same time. Your needs will probably be met by using:

Queue<YourObject> queue = Collections.synchronizedList(new LinkedList<YourObject>());

A plus of this is that it locks on the instance (queue), so you can synchronize on queue to ensure atomicity of composite operations (as explained by Jared). You CANNOT do this with a ConcurrentLinkedQueue, as all operations are done WITHOUT locking on the instance (using java.util.concurrent.atomic variables). You will NOT need to do this if you want to block while the queue is empty, because poll() will simply return null while the queue is empty, and poll() is atomic. Check to see if poll() returns null. If it does, wait(), then try again. No need to lock.

Finally:

Honestly, I'd just use a LinkedBlockingQueue. It is still overkill for your application, but odds are it will work fine. If it isn't performant enough (PROFILE!), you can always try something else, and it means you don't have to deal with ANY synchronized stuff:

BlockingQueue<YourObject> queue = new LinkedBlockingQueue<YourObject>();

queue.put(myObject); // Blocks until queue isn't full.

YourObject myObject = queue.take(); // Blocks until queue isn't empty.

Everything else is the same. Put probably won't block, because you aren't likely to put two billion objects into the queue.

IIF is a non-standard T-SQL function. It was added to SQL SERVER 2012, so that Access could migrate to SQL Server without refactoring the IIF's to CASE before hand. Once the Access db is fully migrated into SQL Server, you can refactor.

It's something that "appears to the rest of the system to occur instantaneously", and falls under categorisation of Linearizability in computing processes. To quote that linked article further:

Atomicity is a guarantee of isolation from concurrent processes. Additionally, atomic operations commonly have a succeed-or-fail definition — they either successfully change the state of the system, or have no apparent effect.

So, for instance, in the context of a database system, one can have 'atomic commits', meaning that you can push a changeset of updates to a relational database and those changes will either all be submitted, or none of them at all in the event of failure, in this way data does not become corrupt, and consequential of locks and/or queues, the next operation will be a different write or a read, but only after the fact. In the context of variables and threading this is much the same, applied to memory.

Your quote highlights that this need not be expected behaviour in all instances.

To view the stdout, you can start the docker container with -i. This of course does not enable you to leave the started process and explore the container.

docker start -i containerid

Alternatively you can view the filesystem of the container at

/var/lib/docker/containers/containerid/root/

However neither of these are ideal. If you want to view logs or any persistent storage, the correct way to do so would be attaching a volume with the -v switch when you use docker run. This would mean you can inspect log files either on the host or attach them to another container and inspect them there.

In the IntelliJ IDE you just need to type:

""

Then position your cursor inside the quotation marks and paste your string. The IDE will expand it into multiple concatenated lines.

With the excellent matplotlib and numpy packages

from matplotlib import pyplot as mp
import numpy as np

def gaussian(x, mu, sig):
    return np.exp(-np.power(x - mu, 2.) / (2 * np.power(sig, 2.)))

x_values = np.linspace(-3, 3, 120)
for mu, sig in [(-1, 1), (0, 2), (2, 3)]:
    mp.plot(x_values, gaussian(x_values, mu, sig))

mp.show()

will produce something like

MongoDB 3.2 now allows one to combine data from multiple collections into one through the $lookup aggregation stage. As a practical example, lets say that you have data about books split into two different collections.

First collection, called books, having the following data:

{
    "isbn": "978-3-16-148410-0",
    "title": "Some cool book",
    "author": "John Doe"
}
{
    "isbn": "978-3-16-148999-9",
    "title": "Another awesome book",
    "author": "Jane Roe"
}

And the second collection, called books_selling_data, having the following data:

{
    "_id": ObjectId("56e31bcf76cdf52e541d9d26"),
    "isbn": "978-3-16-148410-0",
    "copies_sold": 12500
}
{
    "_id": ObjectId("56e31ce076cdf52e541d9d28"),
    "isbn": "978-3-16-148999-9",
    "copies_sold": 720050
}
{
    "_id": ObjectId("56e31ce076cdf52e541d9d29"),
    "isbn": "978-3-16-148999-9",
    "copies_sold": 1000
}

To merge both collections is just a matter of using $lookup in the following way:

db.books.aggregate([{
    $lookup: {
            from: "books_selling_data",
            localField: "isbn",
            foreignField: "isbn",
            as: "copies_sold"
        }
}])

After this aggregation, the books collection will look like the following:

{
    "isbn": "978-3-16-148410-0",
    "title": "Some cool book",
    "author": "John Doe",
    "copies_sold": [
        {
            "_id": ObjectId("56e31bcf76cdf52e541d9d26"),
            "isbn": "978-3-16-148410-0",
            "copies_sold": 12500
        }
    ]
}
{
    "isbn": "978-3-16-148999-9",
    "title": "Another awesome book",
    "author": "Jane Roe",
    "copies_sold": [
        {
            "_id": ObjectId("56e31ce076cdf52e541d9d28"),
            "isbn": "978-3-16-148999-9",
            "copies_sold": 720050
        },
        {
            "_id": ObjectId("56e31ce076cdf52e541d9d28"),
            "isbn": "978-3-16-148999-9",
            "copies_sold": 1000
        }
    ]
}

It is important to note a few things:

1. The "from" collection, in this case books_selling_data, cannot be sharded.
2. The "as" field will be an array, as the example above.
3. Both "localField" and "foreignField" options on the $lookup stage will be treated as null for matching purposes if they don't exist in their respective collections (the $lookup docs has a perfect example about that).

So, as a conclusion, if you want to consolidate both collections, having, in this case, a flat copies_sold field with the total copies sold, you will have to work a little bit more, probably using an intermediary collection that will, then, be $out to the final collection.

I solved because I have the same problem and I give you some clues:

1.- As @eggyal comments

mydatabase != mydatabasename

So, check your database name

2.- if in your file, you want create database, you can't set database that you not create yet:

mysql -uroot -pmypassword mydatabase<mydatabase.sql;

change it for:

mysql -uroot -pmypassword <mydatabase.sql;

For all the ML books I studied, the W is always defined as the connectivity index between two neurons , which means the higher connectivity between two neurons , the stronger the signals will be transmitted from the firing neuron to the target neuron or Y= w * X as a result to maintain the biological character of neurons, we need to keep the 1 >=W >= -1 , but in the real regression, the W will end up with |W| >=1 which contradict with how the Neurons are working, as a result I propose W= cos(theta) , while 1 >=| cos( theta)| , and Y= a * X = W * X + b while a = b + W = b + cos( theta) , b is an integer

It's not a direct answer to the question, however I would suggest in most cases to simply set multiple classes to each element:

<div class="myclass one"></div>
<div class="myclass two></div>
<div class="myclass three"></div>

In this way you can set rules for all myclass elements and then more specific rules for one, two and three.

.myclass { color: #f00; }

.two { font-weight: bold; }

etc.

Use the code below to view the correlations in the descending order.

# See the correlations in descending order

corr = df.corr() # df is the pandas dataframe
c1 = corr.abs().unstack()
c1.sort_values(ascending = False)

JSON uses square brackets for lists ( [ "one", "two", "three" ] ) and curly brackets for key/value dictionaries (also called objects in JavaScript, {"one":1, "two":"b"}).

The dump is quite correct, you get a list of three elements, each one is a list of two strings.

if you wanted a dictionary, maybe something like this:

x = simplejson.dumps(dict(data))
>>> {"pear": "fish", "apple": "cat", "banana": "dog"}

your expected string ('{{"apple":{"cat"},{"banana":"dog"}}') isn't valid JSON. A

slicing operator. http://docs.python.org/tutorial/introduction.html#strings and scroll down a bit

There are two ways to do what you are trying

One is a Multi-column Correlated Update

UPDATE PRODUCTION a
SET (name, count) = (
  SELECT name, count
  FROM STAGING b
  WHERE a.ID = b.ID);

DEMO

You can use merge

MERGE INTO PRODUCTION a
USING ( select id, name, count 
          from STAGING ) b
ON ( a.id = b.id )
WHEN MATCHED THEN 
UPDATE SET  a.name = b.name,
            a.count = b.count

DEMO

Use the awesome "Universal ADB (Android Debug Bridge) Driver for Windows": https://plus.google.com/103583939320326217147/posts/BQ5iYJEaaEH https://github.com/koush/UniversalAdbDriver

• Windows 8 compatible
• comes signed, so does not require you to turn off windows driver signature checks

Tested under Win8.1.1 x64.

An array can be loaded in twoways.

set -A TEST_ARRAY alpha beta gamma

or

X=0 # Initialize counter to zero.

-- Load the array with the strings alpha, beta, and gamma

for ELEMENT in alpha gamma beta
do
    TEST_ARRAY[$X]=$ELEMENT
    ((X = X + 1))
done

Also, I think below information may help:

The shell supports one-dimensional arrays. The maximum number of array elements is 1,024. When an array is defined, it is automatically dimensioned to 1,024 elements. A one-dimensional array contains a sequence of array elements, which are like the boxcars connected together on a train track.

In case you want to access the array:

echo ${MY_ARRAY[2] # Show the third array element
 gamma 


echo ${MY_ARRAY[*] # Show all array elements
-   alpha beta gamma


echo ${MY_ARRAY[@] # Show all array elements
 -  alpha beta gamma


echo ${#MY_ARRAY[*]} # Show the total number of array elements
-   3


echo ${#MY_ARRAY[@]} # Show the total number of array elements
-   3

echo ${MY_ARRAY} # Show array element 0 (the first element)
-  alpha

Get all views from any type of layout

public List<View> getAllViews(ViewGroup layout){
        List<View> views = new ArrayList<>();
        for(int i =0; i< layout.getChildCount(); i++){
            views.add(layout.getChildAt(i));
        }
        return views;
}

Get all TextView from any type of layout

public List<TextView> getAllTextViews(ViewGroup layout){
        List<TextView> views = new ArrayList<>();
        for(int i =0; i< layout.getChildCount(); i++){
            View v =layout.getChildAt(i);
            if(v instanceof TextView){
                views.add((TextView)v);
            }
        }
        return views;
}

To me, upgrading bcel to 6.0 fixed the problem.

In Alpine linux you should do:

apk add curl-dev python3-dev libressl-dev

Yes it is the correct way, but the synchronised block is required if you want all the removals together to be safe - unless the queue is empty no removals allowed. My guess is that you just want safe queue and dequeue operations, so you can remove the synchronised block.

However, there are far advanced concurrent queues in Java such as ConcurrentLinkedQueue

This problem is on Windows 8. First copy your Path of java jdk - e.g. C:\Program Files\Java\jdk1.7.0_51\bin.

1. Right on the My Computer Icon on the Desktop and Click Properties.

2. Select 'Advanced System Settings' in the left pane.

3. Under 'Advanced' tab, select 'Environment Variables' at the bottom.

4. In System Variables, select 'Path' Variable and edit it.

Paste the path and add a ';' at the end - e.g. C:\Program Files\Java\jdk1.7.0_51\bin;

I found deleting the app from the device and re-installing with Xcode solved this issue.

ifeq "$(wildcard $(MY_DIRNAME) )" ""
  -mkdir $(MY_DIRNAME)
endif

This means that a TCP RST was received and the connection is now closed. This occurs when a packet is sent from your end of the connection but the other end does not recognize the connection; it will send back a packet with the RST bit set in order to forcibly close the connection.

This can happen if the other side crashes and then comes back up or if it calls close() on the socket while there is data from you in transit, and is an indication to you that some of the data that you previously sent may not have been received.

It is up to you whether that is an error; if the information you were sending was only for the benefit of the remote client then it may not matter that any final data may have been lost. However you should close the socket and free up any other resources associated with the connection.

complementing the following comment

For those who use redux:

class AllowanceClass extends Component{
    ...
    render() {
        const classes = this.props.classes;
        ...
    }
}
    
const COMAllowanceClass = (props) =>
{
    const classes = useStyles();
    return (<AllowanceClass classes={classes} {...props} />);
};

const mapStateToProps = ({ InfoReducer }) => ({
    token: InfoReducer.token,
    user: InfoReducer.user,
    error: InfoReducer.error
});
export default connect(mapStateToProps, { actions })(COMAllowanceClass);

res = request.GET['paymentid'] will raise a KeyError if paymentid is not in the GET data.

Your sample php code checks to see if paymentid is in the POST data, and sets $payID to '' otherwise:

$payID = isset($_POST['paymentid']) ? $_POST['paymentid'] : ''

The equivalent in python is to use the get() method with a default argument:

payment_id = request.POST.get('payment_id', '')

while debugging, this is what I see in the response.GET: <QueryDict: {}>, request.POST: <QueryDict: {}>

It looks as if the problem is not accessing the POST data, but that there is no POST data. How are you are debugging? Are you using your browser, or is it the payment gateway accessing your page? It would be helpful if you shared your view.

Once you are managing to submit some post data to your page, it shouldn't be too tricky to convert the sample php to python.

I ended her with the same problem and I could not use the the solution with onEditorAction or onFocusChange and did not want to try the timer. A timer is too dangerous for may taste, because of all the threads and too unpredictable, as you do not know when you code is executed.

The onEditorAction do not catch when the user leave without using a button and if you use it please notice that KeyEvent can be null. The focus is unreliable at both ends the user can get focus and leave without enter any text or selecting the field and the user do not need to leave the last EditText field.

My solution use onFocusChange and a flag set when the user starts editing text and a function to get the text from the last focused view, which I call when need.

I just clear the focus on all my text fields to tricker the leave text view code, The clearFocus code is only executed if the field has focus. I call the function in onSaveInstanceState so I do not have to save the flag (mEditing) as a state of the EditText view and when important buttons is clicked and when the activity is closed.

Be careful with TexWatcher as it is call often I use the condition on focus to not react when the onRestoreInstanceState code entering text. I

final EditText mEditTextView = (EditText) getView();

    mEditTextView.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {

        }

        @Override
        public void afterTextChanged(Editable s) {
            if (!mEditing && mEditTextView.hasFocus()) {
                mEditing = true;
            }
        }
    });
    mEditTextView.setOnFocusChangeListener(new View.OnFocusChangeListener() {

        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            if (!hasFocus && mEditing) {
                mEditing = false;
                ///Do the thing
            }
        }
    });
protected void saveLastOpenField(){
    for (EditText view:getFields()){
            view.clearFocus();
    }
}

You need the permission of superuser levels to install React. In Linux/Unix the superuser account is generally named 'root'.

To get superuser privilege just run the following command on your terminal:

sudo -i

and then simply run the command to install React:

npm install -g create-react-app

However, the reactjs team encourages us to use the following command instead of installing a global package.

npx create-react-app app_name

Sort the file randomly and pick first 100 lines:

$ sort -R input | head -n 100 >output

The short and sweet version:

• ($) calls the function which is its left-hand argument on the value which is its right-hand argument.
• (.) composes the function which is its left-hand argument on the function which is its right-hand argument.

PROPS

A React component should use props to store information that can be changed, but can only be changed by a different component.

STATE

A React component should use state to store information that the component itself can change.

A good example is already provided by Valéry.

If you're using SQL Server 2008, there's a new featured called a User Defined Table Type. Here is an example of how to use it:

Create your User Defined Table Type:

CREATE TYPE [dbo].[StringList] AS TABLE(
    [Item] [NVARCHAR](MAX) NULL
);

Next you need to use it properly in your stored procedure:

CREATE PROCEDURE [dbo].[sp_UseStringList]
    @list StringList READONLY
AS
BEGIN
    -- Just return the items we passed in
    SELECT l.Item FROM @list l;
END

Finally here's some sql to use it in c#:

using (var con = new SqlConnection(connstring))
{
    con.Open();

    using (SqlCommand cmd = new SqlCommand("exec sp_UseStringList @list", con))
    {
        using (var table = new DataTable()) {
          table.Columns.Add("Item", typeof(string));

          for (int i = 0; i < 10; i++)
            table.Rows.Add("Item " + i.ToString());

          var pList = new SqlParameter("@list", SqlDbType.Structured);
          pList.TypeName = "dbo.StringList";
          pList.Value = table;

          cmd.Parameters.Add(pList);

          using (var dr = cmd.ExecuteReader())
          {
            while (dr.Read())
                Console.WriteLine(dr["Item"].ToString());
          }
         }
    }
}

To execute this from SSMS

DECLARE @list AS StringList

INSERT INTO @list VALUES ('Apple')
INSERT INTO @list VALUES ('Banana')
INSERT INTO @list VALUES ('Orange')

-- Alternatively, you can populate @list with an INSERT-SELECT
INSERT INTO @list
   SELECT Name FROM Fruits

EXEC sp_UseStringList @list

its work short code

$('.SeeMore2').click(function(){ var $this = $(this).toggleClass('SeeMore2'); if($(this).hasClass('SeeMore2')) { $(this).text('See More');
} else { $(this).text('See Less'); } });

Maybe use System.arraycopy

public static byte[] merge(byte[] first, byte[] second){
    int len = first.length + second.length;
    byte[] full = new byte[len];
    System.arraycopy(first, 0, full, 0, first.length);
    System.arraycopy(second, 0, full, first.length, second.length);
    return full;
}

If I understand you correctly, you should be able to do something along the lines of the following:

function clicked() {
    var someVariable="<?php echo $phpVariable; ?>";
}

(With reference to Android Studio)

Create a new directory in res folder. Make sure to create new "Android Resource Directory" and not new "Directory".

Then ensure that there is at least one valid file in it. It should show up now.

Check for null

$column is null
isnull($column)

Check for empty

$column != ""

However, you should always set NOT NULL for column,
mysql optimization can handle only one IS NULL level

All you need to do now is a simple git checkout

Just make sure to enable it via this global config: git config --global submodule.recurse true

You probably have a list containing one unicode string. The repr of this is [u'String'].

You can convert this to a list of byte strings using any variation of the following:

# Functional style.
print map(lambda x: x.encode('ascii'), my_list)

# List comprehension.
print [x.encode('ascii') for x in my_list]

# Interesting if my_list may be a tuple or a string.
print type(my_list)(x.encode('ascii') for x in my_list)

# What do I care about the brackets anyway?
print ', '.join(repr(x.encode('ascii')) for x in my_list)

# That's actually not a good way of doing it.
print ' '.join(repr(x).lstrip('u')[1:-1] for x in my_list)

I also had this error.

My IIS Website has a Default Website with three (3) application directories below it.

I had each of my 3 application directories configured correctly to use .NET Framework v2.0 in the Application Pools.

However, the Default Website never was configured. I didn't think it was necessary since all of my apps were contained within it.

My IIS Server's default configuration is .NET Framework v4.0, so I changed that to .NET v2.0:

After I did that, I no longer received the same error message.

Now, I see this:

I hope this information helps others.

The only thing which helps me on Windows 7 (x64): https://stackoverflow.com/a/29714359/2670121

Reinstall node and python with x32 versions.
I spent a lot of time with this error:

Failed to load c++ bson extension

and finally, when I installed module node-gyp (for building native addons) and even installed windows SDK with visual studio - nodejs didn't recognize assembled module bson.node as a module. After reinstalling the problem is gone.

Again, What does this error mean?

Actually, it's even not error. You still can use mongoose. But in this case, instead of fast native realization of bson module, you got js-realization, which is slower.

I saw many tips like: "edit path deep inside node_modules..." - which is totally useless, because it does not solve the problem, but just turned off the error messages.

Add the following code to the top of your Markdown files to get MathJax rendering support

<style TYPE="text/css">
code.has-jax {font: inherit; font-size: 100%; background: inherit; border: inherit;}
</style>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
    tex2jax: {
        inlineMath: [['$','$'], ['\\(','\\)']],
        skipTags: ['script', 'noscript', 'style', 'textarea', 'pre'] // removed 'code' entry
    }
});
MathJax.Hub.Queue(function() {
    var all = MathJax.Hub.getAllJax(), i;
    for(i = 0; i < all.length; i += 1) {
        all[i].SourceElement().parentNode.className += ' has-jax';
    }
});
</script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.4/MathJax.js?config=TeX-AMS_HTML-full"></script>

and then `$x^2$` or `$$x^2$$` will render as expected :-)

You can always install a local version of MathJax if you don't want to use the online distribution, but you might need to host it through a local webserver.

UPDATE: these days I just use pandoc instead of canonical markdown, but the above is still useful.

What if your lists contain duplicates like this:

v1 = ['s', 'h', 'e', 'e', 'p']
v2 = ['s', 's', 'h']

Sets do not contain duplicates. So, the following line returns True.

set(v2).issubset(v1)

To count for duplicates, you can use the code:

v1 = sorted(v1)
v2 = sorted(v2)


def is_subseq(v2, v1):
    """Check whether v2 is a subsequence of v1."""
    it = iter(v1)
    return all(c in it for c in v2) 

So, the following line returns False.

is_subseq(v2, v1)

In /etc/ansible/ansible.cfg uncomment the line:

host_key_check = False

and in /etc/ansible/hosts uncomment the line

client_ansible ansible_ssh_host=10.1.1.1 ansible_ssh_user=root ansible_ssh_pass=12345678

That's all

When you select a radio button and click on a submit button, you need to handle the submission of any selected values in your php code using $_POST[] For example: if your radio button is:

<input type="radio" name="rdb" value="male"/>

then in your php code you need to use:

$rdb_value = $_POST['rdb'];

This is easily achievable without any external libraries.

1. Cryptographic Pseudo Random Data Generation (PRNG)

First you need a cryptographic PRNG. Java has SecureRandom for that and typically uses the best entropy source on the machine (e.g. /dev/random). Read more here.

SecureRandom rnd = new SecureRandom();
byte[] token = new byte[byteLength];
rnd.nextBytes(token);

Note: SecureRandom is the slowest, but most secure way in Java of generating random bytes. I do however recommend not considering performance here since it usually has no real impact on your application unless you have to generate millions of tokens per second.

2. Required Space of Possible Values

Next you have to decide "how unique" your token needs to be. The whole and only point of considering entropy is to make sure that the system can resist brute force attacks: the space of possible values must be so large that any attacker could only try a negligible proportion of the values in non-ludicrous time¹.

Unique identifiers such as random UUID have 122 bit of entropy (i.e., 2^122 = 5.3x10^36) - the chance of collision is "*(...) for there to be a one in a billion chance of duplication, 103 trillion version 4 UUIDs must be generated²". We will choose 128 bits since it fits exactly into 16 bytes and is seen as highly sufficient for being unique for basically every, but the most extreme, use cases and you don't have to think about duplicates. Here is a simple comparison table of entropy including simple analysis of the birthday problem.

^{For simple requirements, 8 or 12 byte length might suffice, but with 16 bytes you are on the "safe side".}

And that's basically it. The last thing is to think about encoding so it can be represented as a printable text (read, a String).

3. Binary to Text Encoding

Typical encodings include:

• Base64 every character encodes 6 bit, creating a 33% overhead. Fortunately there are standard implementations in Java 8+ and Android. With older Java you can use any of the numerous third-party libraries. If you want your tokens to be URL safe use the URL-safe version of RFC4648 (which usually is supported by most implementations). Example encoding 16 bytes with padding: XfJhfv3C0P6ag7y9VQxSbw==

• Base32 every character encodes 5 bit, creating a 40% overhead. This will use A-Z and 2-7, making it reasonably space efficient while being case-insensitive alpha-numeric. There isn't any standard implementation in the JDK. Example encoding 16 bytes without padding: WUPIL5DQTZGMF4D3NX5L7LNFOY

• Base16 (hexadecimal) every character encodes four bit, requiring two characters per byte (i.e., 16 bytes create a string of length 32). Therefore hexadecimal is less space efficient than Base32, but it is safe to use in most cases (URL) since it only uses 0-9 and A to F. Example encoding 16 bytes: 4fa3dd0f57cb3bf331441ed285b27735. See a Stack Overflow discussion about converting to hexadecimal here.

Additional encodings like Base85 and the exotic Base122 exist with better/worse space efficiency. You can create your own encoding (which basically most answers in this thread do), but I would advise against it, if you don't have very specific requirements. See more encoding schemes in the Wikipedia article.

4. Summary and Example

• Use SecureRandom
• Use at least 16 bytes (2^128) of possible values
• Encode according to your requirements (usually hex or base32 if you need it to be alpha-numeric)

Don't

• ... use your home brew encoding: better maintainable and readable for others if they see what standard encoding you use instead of weird for loops creating characters at a time.
• ... use UUID: it has no guarantees on randomness; you are wasting 6 bits of entropy and have a verbose string representation

Example: Hexadecimal Token Generator

public static String generateRandomHexToken(int byteLength) {
    SecureRandom secureRandom = new SecureRandom();
    byte[] token = new byte[byteLength];
    secureRandom.nextBytes(token);
    return new BigInteger(1, token).toString(16); // Hexadecimal encoding
}

//generateRandomHexToken(16) -> 2189df7475e96aa3982dbeab266497cd

Example: Base64 Token Generator (URL Safe)

public static String generateRandomBase64Token(int byteLength) {
    SecureRandom secureRandom = new SecureRandom();
    byte[] token = new byte[byteLength];
    secureRandom.nextBytes(token);
    return Base64.getUrlEncoder().withoutPadding().encodeToString(token); //base64 encoding
}

//generateRandomBase64Token(16) -> EEcCCAYuUcQk7IuzdaPzrg

Example: Java CLI Tool

If you want a ready-to-use CLI tool you may use dice:

Example: Related issue - Protect Your Current Ids

If you already have an id you can use (e.g., a synthetic long in your entity), but don't want to publish the internal value, you can use this library to encrypt it and obfuscate it: https://github.com/patrickfav/id-mask

IdMask<Long> idMask = IdMasks.forLongIds(Config.builder(key).build());
String maskedId = idMask.mask(id);
// Example: NPSBolhMyabUBdTyanrbqT8
long originalId = idMask.unmask(maskedId);

This solution is really minimalistic and doesn't mess up your code.

In your list_item.xml (NOT listView!) assign the attribute android:onClick like this:

<RelativeLayout android:onClick="onClickDoSomething">

and then in your activity call this method:

public void onClickDoSomething(View view) {
   // the view is the line you have clicked on
}

No need to remember flags. Remember that you can always do:

subprocess.call(["chmod", "a-w", "file/path])

Not portable but easy to write and remember:

• u - user
• g - group
• o - other
• a - all
• + or - (add or remove permission)
• r - read
• w - write
• x - execute

Refer man chmod for additional options and more detailed explanation.

Use the CheckBoxList's GetItemChecked or GetItemCheckState method to find out whether an item is checked or not by its index.

If you want to pass the variable to your proxy backend, you have to set it with the proxy module.

location / {
    proxy_pass                      http://example.com;
    proxy_set_header                Host example.com;
    proxy_set_header                HTTP_Country-Code $geoip_country_code;
    proxy_pass_request_headers      on;
}

And now it's passed to the proxy backend.

In Java, i use tartargus-snowball to stemming words

Maven:

<dependency>
        <groupId>org.apache.lucene</groupId>
        <artifactId>lucene-snowball</artifactId>
        <version>3.0.3</version>
        <scope>test</scope>
</dependency>

Sample code:

SnowballProgram stemmer = new EnglishStemmer();
String[] words = new String[]{
    "testing",
    "skincare",
    "eyecare",
    "eye",
    "worked",
    "read"
};
for (String word : words) {
    stemmer.setCurrent(word);
    stemmer.stem();
    //debug
    logger.info("Origin: " + word + " > " + stemmer.getCurrent());// result: test, skincar, eyecar, eye, work, read
}

Use the Environment.NewLine property

CGRect screen = [[UIScreen mainScreen] bounds];
CGFloat width = CGRectGetWidth(screen);
//Bonus height.
CGFloat height = CGRectGetHeight(screen);

I have got the solution for my query:

i have done something like this:

cell.innerHTML="<img height=40 width=40 alt='' src='<%=request.getContextPath()%>/writeImage.htm?' onerror='onImgError(this);' onLoad='setDefaultImage(this);'>"

function setDefaultImage(source){
        var badImg = new Image();
        badImg.src = "video.png";
        var cpyImg = new Image();
        cpyImg.src = source.src;

        if(!cpyImg.width)
        {
            source.src = badImg.src;
        }

    }


    function onImgError(source){
        source.src = "video.png";
        source.onerror = ""; 
        return true; 
    } 

This way it's working in all browsers.

For collapse, you can try CTRL + M + O and expand using CTRL + M + P. This works in VS2008.

First method

For Windows 7 and above users, Windows PowerShell give you this option. Users with windows version less than 7 can download PowerShell online and install it.

Steps:

1. type PowerShell in search area and click on "Windows PowerShell"

2. If you have a .bat (batch) file go to step 3 OR copy your commands to a file and save it with .bat extension (e.g. file.bat)

3. run the .bat file with following command

   PS (location)> <path to bat file>/file.bat | Tee-Object -file log.txt

This will generate a log.txt file with all command prompt output in it. Advantage is that you can also the output on command prompt.

Second method

You can use file redirection (>, >>) as suggest by Bali C above.

I will recommend first method if you have lots of commands to run or a script to run. I will recommend last method if there is only few commands to run.

A little improved and wrapped into a manager solution.

Things to keep in mind. FragmentManager is not a singleton, it manages only Fragments within Activity, so in every activity it will be new. Also, this solution so far doesn't take ViewPager into account that calls setUserVisibleHint() method helping to control visiblity of Fragments.

Feel free to use following classes when dealing with this issue (uses Dagger2 injection). Call in Activity:

//inject FragmentBackstackStateManager instance to myFragmentBackstackStateManager
FragmentManager fragmentManager = getSupportFragmentManager(); 
myFragmentBackstackStateManager.apply(fragmentManager);

FragmentBackstackStateManager.java:

@Singleton
public class FragmentBackstackStateManager {

    private FragmentManager fragmentManager;

    @Inject
    public FragmentBackstackStateManager() {
    }

    private BackstackCallback backstackCallbackImpl = new BackstackCallback() {
        @Override
        public void onFragmentPushed(Fragment parentFragment) {
            parentFragment.onPause();
        }

        @Override
        public void onFragmentPopped(Fragment parentFragment) {
            parentFragment.onResume();
        }
    };

    public FragmentBackstackChangeListenerImpl getListener() {
        return new FragmentBackstackChangeListenerImpl(fragmentManager, backstackCallbackImpl);
    }

    public void apply(FragmentManager fragmentManager) {
        this.fragmentManager = fragmentManager;
        fragmentManager.addOnBackStackChangedListener(getListener());
    }
}

FragmentBackstackChangeListenerImpl.java:

public class FragmentBackstackChangeListenerImpl implements FragmentManager.OnBackStackChangedListener {

    private int lastBackStackEntryCount = 0;
    private final FragmentManager fragmentManager;
    private final BackstackCallback backstackChangeListener;

    public FragmentBackstackChangeListenerImpl(FragmentManager fragmentManager, BackstackCallback backstackChangeListener) {
        this.fragmentManager = fragmentManager;
        this.backstackChangeListener = backstackChangeListener;
        lastBackStackEntryCount = fragmentManager.getBackStackEntryCount();
    }

    private boolean wasPushed(int backStackEntryCount) {
        return lastBackStackEntryCount < backStackEntryCount;
    }

    private boolean wasPopped(int backStackEntryCount) {
        return lastBackStackEntryCount > backStackEntryCount;
    }

    private boolean haveFragments() {
        List<Fragment> fragmentList = fragmentManager.getFragments();
        return fragmentList != null && !fragmentList.isEmpty();
    }


    /**
     * If we push a fragment to backstack then parent would be the one before => size - 2
     * If we pop a fragment from backstack logically it should be the last fragment in the list, but in Android popping a fragment just makes list entry null keeping list size intact, thus it's also size - 2
     *
     * @return fragment that is parent to the one that is pushed to or popped from back stack
     */
    private Fragment getParentFragment() {
        List<Fragment> fragmentList = fragmentManager.getFragments();
        return fragmentList.get(Math.max(0, fragmentList.size() - 2));
    }

    @Override
    public void onBackStackChanged() {
        int currentBackStackEntryCount = fragmentManager.getBackStackEntryCount();
        if (haveFragments()) {
            Fragment parentFragment = getParentFragment();

            //will be null if was just popped and was last in the stack
            if (parentFragment != null) {
                if (wasPushed(currentBackStackEntryCount)) {
                    backstackChangeListener.onFragmentPushed(parentFragment);
                } else if (wasPopped(currentBackStackEntryCount)) {
                    backstackChangeListener.onFragmentPopped(parentFragment);
                }
            }
        }

        lastBackStackEntryCount = currentBackStackEntryCount;
    }
}

BackstackCallback.java:

public interface BackstackCallback {
    void onFragmentPushed(Fragment parentFragment);

    void onFragmentPopped(Fragment parentFragment);
}

In my case the solutions above did not work I had to do the following:

sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.fromFile(f)));

If you are running Windows 7 64-bit, I would strongly suggest you download the 64-bit Java installer. There is no sense in downloading the x86 installer on an x64 based OS.

That corrected the problem for me.

Not sure what the problem is, this seems to work just fine?

DECLARE @StartDate AS DATETIME
DECLARE @EndDate AS DATETIME

SET @StartDate = NULL
SET @EndDate = NULL

IF (@StartDate IS NOT NULL AND @EndDate IS NOT NULL) 
    BEGIN
        Select 'This works just fine' as Msg
    END
Else
    BEGIN
    Select 'No Lol' as Msg
    END

Is there any way to dump the call stack in a running process in C or C++ every time a certain function is called?

No there is not, although platform-dependent solutions might exist.

This is what list comprehensions are for:

numbers = [ int(x) for x in numbers ]

In the head section of your html document:

<link rel="stylesheet" type="text/css" href="/path/to/ABCD.css">

Your css file should be css only and not contain any markup.

I highly recommend Loopj.

I have successfully used it to upload multiple files at once, including different mime types. Simply do this:

File myVideo = new File("/path/to/myvideo.mp4");
File myPic = new File("/path/to/mypic.jpg");
RequestParams params = new RequestParams();
try {
  params.put("profile_picture", myPic);
  params.put("my_video", myVideo);
} catch(FileNotFoundException e) {}

For large or many files you might have to increase the timeout amount else the default timeout is used which might be too short:

client.setTimeout(500000) //make this the appropriate timeout in milliseconds

Please see this links for a full description of loopj and how to use it, by far the easiest async http library I have come across:

http://loopj.com/android-async-http/ http://loopj.com/android-async-http/doc/com/loopj/android/http/AsyncHttpClient.html

If you have empty rows, not NAs, you can do:

data[!apply(data == "", 1, all),]

To remove both (NAs and empty):

data <- data[!apply(is.na(data) | data == "", 1, all),]

Put this in an initializer

class Hash
  def filter(*args)
    return nil if args.try(:empty?)
    if args.size == 1
      args[0] = args[0].to_s if args[0].is_a?(Symbol)
      self.select {|key| key.to_s.match(args.first) }
    else
      self.select {|key| args.include?(key)}
    end
  end
end

Then you can do

{a: "1", b: "b", c: "c", d: "d"}.filter(:a, :b) # =>  {a: "1", b: "b"}

or

{a: "1", b: "b", c: "c", d: "d"}.filter(/^a/)  # =>  {a: "1"}

I use flexbox on html. For a nice effect, you can match the browsers chrome so as to frame your content on screen sizes larger than your page maximums. I find that #eeeeee matches pretty well. You could add a box shadow for a nice float effect.

    html{
        display: flex;
        flex-flow: row nowrap;  
        justify-content: center;
        align-content: center;
        align-items: center;
        height:100%;
        margin: 0;
        padding: 0;
        background:#eeeeee;
    }
    body {
        margin: 0;
        flex: 0 1 auto;
        align-self: auto;
        /*recommend 1920 / 1080 max based on usage stats, use 100% to that point*/
        width: 100%
        max-width: 900px;
        height: 100%;
        max-height: 600px;
        background:#fafafa;
        -webkit-box-shadow: 0px 0px 96px 0px rgba(0,0,0,0.75);
        -moz-box-shadow: 0px 0px 96px 0px rgba(0,0,0,0.75);
        box-shadow: 0px 0px 96px 0px rgba(0,0,0,0.75);
    }

image/data courtesy StatCounter

Another workaround is just to set the li item to flex or inline-flex. Depending on the circumstances that may suit you better. In case you have a real icon / image placed in the HTML the default flex position is on the central horizontal line.

You can do it in a hackish way. Careful using the sqlcmd hack. If the data has double quotes or commas you will run into trouble.

You can use a simple script to do it properly:

'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Data Exporter                                                 '
'                                                               '
' Description: Allows the output of data to CSV file from a SQL '
'       statement to either Oracle, SQL Server, or MySQL        '
' Author: C. Peter Chen, http://dev-notes.com                   '
' Version Tracker:                                              '
'       1.0   20080414 Original version                         '
'   1.1   20080807 Added email functionality                '
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
option explicit
dim dbType, dbHost, dbName, dbUser, dbPass, outputFile, email, subj, body, smtp, smtpPort, sqlstr

'''''''''''''''''
' Configuration '
'''''''''''''''''
dbType = "oracle"                 ' Valid values: "oracle", "sqlserver", "mysql"
dbHost = "dbhost"                 ' Hostname of the database server
dbName = "dbname"                 ' Name of the database/SID
dbUser = "username"               ' Name of the user
dbPass = "password"               ' Password of the above-named user
outputFile = "c:\output.csv"      ' Path and file name of the output CSV file
email = "[email protected]"           ' Enter email here should you wish to email the CSV file (as attachment); if no email, leave it as empty string ""
  subj = "Email Subject"          ' The subject of your email; required only if you send the CSV over email
  body = "Put a message here!"    ' The body of your email; required only if you send the CSV over email
  smtp = "mail.server.com"        ' Name of your SMTP server; required only if you send the CSV over email
  smtpPort = 25                   ' SMTP port used by your server, usually 25; required only if you send the CSV over email
sqlStr = "select user from dual"  ' SQL statement you wish to execute
'''''''''''''''''''''
' End Configuration '
'''''''''''''''''''''



dim fso, conn

'Create filesystem object 
set fso = CreateObject("Scripting.FileSystemObject")

'Database connection info
set Conn = CreateObject("ADODB.connection")
Conn.ConnectionTimeout = 30
Conn.CommandTimeout = 30
if dbType = "oracle" then
    conn.open("Provider=MSDAORA.1;User ID=" & dbUser & ";Password=" & dbPass & ";Data Source=" & dbName & ";Persist Security Info=False")
elseif dbType = "sqlserver" then
    conn.open("Driver={SQL Server};Server=" & dbHost & ";Database=" & dbName & ";Uid=" & dbUser & ";Pwd=" & dbPass & ";")
elseif dbType = "mysql" then
    conn.open("DRIVER={MySQL ODBC 3.51 Driver}; SERVER=" & dbHost & ";PORT=3306;DATABASE=" & dbName & "; UID=" & dbUser & "; PASSWORD=" & dbPass & "; OPTION=3")
end if

' Subprocedure to generate data.  Two parameters:
'   1. fPath=where to create the file
'   2. sqlstr=the database query
sub MakeDataFile(fPath, sqlstr)
    dim a, showList, intcount
    set a = fso.createtextfile(fPath)

    set showList = conn.execute(sqlstr)
    for intcount = 0 to showList.fields.count -1
        if intcount <> showList.fields.count-1 then
            a.write """" & showList.fields(intcount).name & ""","
        else
            a.write """" & showList.fields(intcount).name & """"
        end if
    next
    a.writeline ""

    do while not showList.eof
        for intcount = 0 to showList.fields.count - 1
            if intcount <> showList.fields.count - 1 then
                a.write """" & showList.fields(intcount).value & ""","
            else
                a.write """" & showList.fields(intcount).value & """"
            end if
        next
        a.writeline ""
        showList.movenext
    loop
    showList.close
    set showList = nothing

    set a = nothing
end sub

' Call the subprocedure
call MakeDataFile(outputFile,sqlstr)

' Close
set fso = nothing
conn.close
set conn = nothing

if email <> "" then
    dim objMessage
    Set objMessage = CreateObject("CDO.Message")
    objMessage.Subject = "Test Email from vbs"
    objMessage.From = email
    objMessage.To = email
    objMessage.TextBody = "Please see attached file."
    objMessage.AddAttachment outputFile

    objMessage.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
    objMessage.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpserver") = smtp
    objMessage.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = smtpPort

objMessage.Configuration.Fields.Update

    objMessage.Send
end if

'You're all done!!  Enjoy the file created.
msgbox("Data Writer Done!")

^{Source: Writing SQL output to CSV with VBScript.}

So most handy is to do sort of:

import android.os.AsyncTask
import android.os.Handler
import android.os.Looper

object Dispatch {
    fun asyncOnBackground(call: ()->Unit) {
        AsyncTask.execute {
            call()
        }
    }

    fun asyncOnMain(call: ()->Unit) {
        Handler(Looper.getMainLooper()).post {
            call()
        }
    }
}

And after:

Dispatch.asyncOnBackground {
    val value = ...// super processing
    Dispatch.asyncOnMain { completion(value)}
}

This is the simplest way I can come with.

package main

import "fmt"

func main() {
    g := greeting
    getFunc(g)
}

func getFunc(f func()) {
    f()
}

func greeting() {
    fmt.Println("Hello")
}

Rails 5

You can still use this command to create the migration:

rails g migration AddUserToUploads user:references

The migration looks a bit different to before, but still works:

class AddUserToUploads < ActiveRecord::Migration[5.0]
  def change
    add_reference :uploads, :user, foreign_key: true
  end
end

Note that it's :user, not :user_id

You can use IIF for a similar result.

Note that you can nest the IIF statements to handle multiple cases. There is an example here: http://forums.devshed.com/database-management-46/query-ms-access-iif-statement-multiple-conditions-358130.html

SELECT IIf([Combinaison] = "Mike", 12, IIf([Combinaison] = "Steve", 13)) As Answer 
FROM MyTable;

This is another option

#!/usr/bin/env python

import numpy as np
import matplotlib
matplotlib.use('TKAgg') #use matplotlib backend TkAgg (optional)
import matplotlib.pyplot as plt

sample_rate = 200 # sampling frequency in Hz (atleast 2 times f)
t = np.linspace(0,5,sample_rate)    #time axis
f = 100 #Signal frequency in Hz
sig = np.sin(2*np.pi*f*(t/sample_rate))
plt.plot(t,sig)
plt.xlabel("Time")
plt.ylabel("Amplitude")
plt.tight_layout() 
plt.show()

(Already said) I found this out while making some Chrome themes (which are long gone now... :-P)

Chrome themes, extensions, etc. are just compressed files. Get 7-zip or WinRar to unzip it. Each extension/theme has a manifest.json file. Open the manifest.json file in notepad. Then, if you know the coding, modify the code. There will be some other files. If you look in the manifest file you might be able to figure out what the are for. Then, you can change everything...

Yes, you can do this. The knack you need is the concept that there are two ways of getting tables out of the table server. One way is ..

FROM TABLE A

The other way is

FROM (SELECT col as name1, col2 as name2 FROM ...) B

Notice that the select clause and the parentheses around it are a table, a virtual table.

So, using your second code example (I am guessing at the columns you are hoping to retrieve here):

SELECT a.attr, b.id, b.trans, b.lang
FROM attribute a
JOIN (
 SELECT at.id AS id, at.translation AS trans, at.language AS lang, a.attribute
 FROM attributeTranslation at
) b ON (a.id = b.attribute AND b.lang = 1)

Notice that your real table attribute is the first table in this join, and that this virtual table I've called b is the second table.

This technique comes in especially handy when the virtual table is a summary table of some kind. e.g.

SELECT a.attr, b.id, b.trans, b.lang, c.langcount
FROM attribute a
JOIN (
 SELECT at.id AS id, at.translation AS trans, at.language AS lang, at.attribute
 FROM attributeTranslation at
) b ON (a.id = b.attribute AND b.lang = 1)
JOIN (
 SELECT count(*) AS langcount,  at.attribute
 FROM attributeTranslation at
 GROUP BY at.attribute
) c ON (a.id = c.attribute)

See how that goes? You've generated a virtual table c containing two columns, joined it to the other two, used one of the columns for the ON clause, and returned the other as a column in your result set.

Go to php.exe located folder.

C:\wamp\bin\php\php5.5.12\

open cmd there, and execute below command.

php -r "readfile('https://getcomposer.org/installer');" | php

composer.phar will be downloaded in same folder.

Create folder named composer in C:// drive (or anywhere you wish, for upcoming steps, remember the path).

move composer.phar file to C://composer folder.

Create composer.bat file in same folder with contents below

@ECHO OFF
php "%~dp0composer.phar" %*

create file named composer without any extensions.

running command type NUL > composer in CMD will help to get it done quickly,

Open that file and place below contents inside it.

#!/bin/sh
dir=$(d=$(dirname "$0"); cd "$d" && pwd)
# see if we are running in cygwin by checking for cygpath program
if command -v 'cygpath' >/dev/null 2>&1; then
    # cygwin paths start with /cygdrive/ which will break windows PHP,
    # so we need to translate the dir path to windows format. However
    # we could be using cygwin PHP which does not require this, so we
    # test if the path to PHP starts with /cygdrive/ rather than /usr/bin.
    if [[ $(which php) == /cygdrive/* ]]; then
        dir=$(cygpath -m $dir);
    fi
fi
dir=$(echo $dir | sed 's/ /\ /g')
php "${dir}/composer.phar" $*

Save.

Now set path, So we can access composer from cmd.

• Show Desktop.

• Right Click My Computer shortcut in the desktop.

• Click Properties.

• You should see a section of control Panel - Control Panel\System and Security\System.

• Click Advanced System Settings on the Left menu.

• Click Environment Variables towards the bottom of the window.

• Select PATH in the user variables list.

• Append your PHP Path (C:\composer) to your PATH variable, separated from the already existing string by a semi colon.

• Click OK

Restart your machine.

Or, restart explorer only using below command in CMD.

taskkill /f /IM explorer.exe
start explorer.exe
exit

Original Article with screenshots here : http://aslamise.blogspot.com/2015/07/installing-composer-manually-in-windows-7-using-cmd.html

The CSS property that can be used is:

pointer-events:none

!IMPORTANT Keep in mind that this property is not supported by Opera Mini and IE 10 and below (inclusive). Another solution is needed for these browsers.

jQuery METHOD If you want to disable it via script and not CSS property, these can help you out: If you're using jQuery versions 1.4.3+:

$('selector').click(false);

If not:

$('selector').click(function(){return false;});

• Referenced from : jquery - disable click

You can re-enable clicks with pointer-events: auto; (Documentation)

Note that pointer-events overrides the cursor property, so if you want the cursor to be something other than the standard , your css should be place after pointer-events.

Java 7 one line solution

List<String> lines = Files.readAllLines(Paths.get("file"), StandardCharsets.UTF_8);

or

 String text = new String(Files.readAllBytes(Paths.get("file")), StandardCharsets.UTF_8);

This does not require a switch statement. It is clearer, more concise, faster, and optimises better, to use if else statements...

var d = this.dealer;
if (1 <= d && d <= 11) { // making sure in range 1..11
    if (d <= 4) {
        alert("1 to 4");
    } else if (d <= 8) {
        alert("5 to 8");
    } else {
        alert("9 to 11");
    }
} else {
    alert("not in range");
}

Speed test

I was curious about the overhead of using a switch instead of the simpler if...else..., so I put together a jsFiddle to examine it... http://jsfiddle.net/17x9w1eL/

• Chrome: switch was around 70% slower than if else

• Firefox: switch was around 5% slower than if else

• IE: switch was around 5% slower than if else

• Safari: switch was around 95% slower than if else

Notes:

Assigning to the local variable is optional, especially if your code is going to be automatically optimised later.

For numeric ranges, I like to use this kind of construction...

if (1 <= d && d <= 11) {...}

... because to me it reads closer to the way you would express a range in maths (1 <= d <= 11), and when I'm reading the code, I can read that as "if d is between 1 and 11".

Clearer

A few people don't think this is clearer. I'd say it is not less clear as the structure is close to identical to the switch option. The main reason it is clearer is that every part of it is readable and makes simple intuitive sense.

My concern, with "switch (true)", is that it can appear to be a meaningless line of code. Many coders, reading that will not know what to make of it.

For my own code, I'm more willing to use obscure structures from time to time, but if anyone else will look at it, I try to use clearer constructs. I think it is better to use the constructs for what they are intended.

Optimisation

In a modern environment, code is often going to be minified for production, so you can write clear concise code, with readable variable names and helpful comments. There's no clear reason to use switch in this way.

I also tried putting both constructs through a minifier. The if/else structure compresses well, becoming a single short expression using nested ternary operators. The switch statement when minified remains a switch, complete with "switch", "case" and "break" tokens, and as a result is considerably longer in code.

How switch(true) works

I think "switch(true) is obscure, but it seems some people just want to use it, so here's an explanation of why it works...

A switch/case statement works by matching the part in the switch with each case, and then executing the code on the first match. In most use cases, we have a variable or non-constant expression in the switch, and then match it.

With "switch(true), we will find the first expression in the case statements that is true. If you read "switch (true)" as "find the first expression that is true", the code feels more readable.

The simplest way : grep -Ril "Your text" /

This should get the id added.

ASP.NET MVC 5 and lower:

<% using (Html.BeginForm(null, null, FormMethod.Post, new { id = "signupform" }))
   { } %>

ASP.NET Core: You can use tag helpers in forms to avoid the odd syntax for setting the id.

<form asp-controller="Account" asp-action="Register" method="post" id="signupform" role="form"></form>

Building off jeroenk's answer, here's the rundown:

$('button').addClass('disabled'); // Disables visually
$('button').prop('disabled', true); // Disables visually + functionally

$('input[type=button]').addClass('disabled'); // Disables visually
$('input[type=button]').prop('disabled', true); // Disables visually + functionally

$('a').addClass('disabled'); // Disables visually
$('a').prop('disabled', true); // Does nothing
$('a').attr('disabled', 'disabled'); // Disables visually

See fiddle

Apple has changed the rules on this. I read through all the Apple docs and as many of the US export regs as I could find.

My view on this was until recently even using HTTPS for most apps meant Apple would require the export certificate. Some apps such as banking would be OK but for many apps they did not fall into the excempt category which is very, very broad.

However Apple has now introduced a getout under the exempt category for apps that JUST use https. I do not know when they did this but I think it was either Dec 2016 or Jan 2017. We are now submitting our apps without the certificate from the US Govt.

Using git version 1.7.9.5 there is no "remove" command for remote. Use "rm" instead.

$ git remote rm upstream
$ git remote add upstream https://github.com/Foo/repos.git

or, as noted in the previous answer, set-url works.

I don't know when the command changed, but Ubuntu 12.04 shipped with 1.7.9.5.

Yes, std::sort() with third parameter (function or object) would be easier. An example: http://www.cplusplus.com/reference/algorithm/sort/

Underscore's extend is the easiest and quickest way to achieve this, like James commented.

Here's an example using underscore:

var _ = require('underscore'), // npm install underscore to install
  object1 = {name: "John"},
  object2 = {location: "San Jose"};

var target = _.extend(object1, object2);

object 1 will get the properties of object2 and be returned and assigned to target. You could do it like this as well, depending on whether you mind object1 being modified:

var target = {};
_.extend(target, object1, object2);

You are reinventing the wheel. Normal PowerShell scripts have parameters starting with -, like script.ps1 -server http://devserver

Then you handle them in param section in the beginning of the file.

You can also assign default values to your params, read them from console if not available or stop script execution:

 param (
    [string]$server = "http://defaultserver",
    [Parameter(Mandatory=$true)][string]$username,
    [string]$password = $( Read-Host "Input password, please" )
 )

Inside the script you can simply

write-output $server

since all parameters become variables available in script scope.

In this example, the $server gets a default value if the script is called without it, script stops if you omit the -username parameter and asks for terminal input if -password is omitted.

Update: You might also want to pass a "flag" (a boolean true/false parameter) to a PowerShell script. For instance, your script may accept a "force" where the script runs in a more careful mode when force is not used.

The keyword for that is [switch] parameter type:

 param (
    [string]$server = "http://defaultserver",
    [string]$password = $( Read-Host "Input password, please" ),
    [switch]$force = $false
 )

Inside the script then you would work with it like this:

if ($force) {
  //deletes a file or does something "bad"
}

Now, when calling the script you'd set the switch/flag parameter like this:

.\yourscript.ps1 -server "http://otherserver" -force

If you explicitly want to state that the flag is not set, there is a special syntax for that

.\yourscript.ps1 -server "http://otherserver" -force:$false

Links to relevant Microsoft documentation (for PowerShell 5.0; tho versions 3.0 and 4.0 are also available at the links):

• about_Scripts
• about_Functions
• about_Functions_Advanced_Parameters

$data = $this->db->get_where('columnname',array('code' => 'B'));
$this->db->where_in('columnname',$data);
$this->db->where('code !=','B');
$query =  $this->db->get();
return $query->result_array();

Run: nmap -p 8080 localhost (Install nmap with MacPorts or Homebrew if you don't have it on your system yet)

Nmap scan report for localhost (127.0.0.1)

Host is up (0.00034s latency).

Other addresses for localhost (not scanned): ::1

PORT STATE SERVICE

8080/tcp open http-proxy

Run: ps -ef | grep http-proxy

UID PID PPID C STIME TTY TIME CMD

640 99335 88310 0 12:26pm ttys002 0:00.01 grep http-proxy"

Run: ps -ef 640 (replace 501 with your UID)

/System/Library/PrivateFrameworks/PerformanceAnalysis.framework/Versions/A/XPCServices/com.apple.PerformanceAnalysis.animationperfd.xpc/Contents/MacOS/com.apple.PerformanceAnalysis.animationperfd

Port 8080 on mac osx is used by something installed with XCode SDK

cols = list(df.columns.values) #Make a list of all of the columns in the df
cols.pop(cols.index('b')) #Remove b from list
cols.pop(cols.index('x')) #Remove x from list
df = df[cols+['b','x']] #Create new dataframe with columns in the order you want

you can only make circle from square using border-radius.

border-radius doesn't increase or reduce heights nor widths.

Your request is to use only image tag , it is basicly not possible if tag is not a square.

If you want to use a blank image and set another in bg, it is going to be painfull , one background for each image to set.

Cropping can only be done if a wrapper is there to do so. inthat case , you have many ways to do it

Making a class abstract sends a message to the readers of your code that you want users of your abstract class to subclass it. However, this is not what you want then to do: a utility class should not be subclassed.

Therefore, adding a private constructor is a better choice here. You should also make the class final to disallow subclassing of your utility class.

An addition to the other answers that didn't work for me: In my case the error occurred due to permission errors. The project got deployed while the tomcat was running as root, later when started as tomcat user I got the error from the question title.

Solution in my case was to set the right permissions, e.x. on a unix system:

cd <tomcat-dir>
chown -R <tomcat-user> *

Won't days * 24 * 60 * 60 * 1000 suffice?

The correct mechanism for C++ in anonymous namespaces. If you want something that is local to your file, you should use an anonymous namespace rather than the static modifier.

Well, longs can't hold anything but integers.

One option is to use a float: float('234.89')

The other option is to truncate or round. Converting from a float to a long will truncate for you: long(float('234.89'))

>>> long(float('1.1'))
1L
>>> long(float('1.9'))
1L
>>> long(round(float('1.1')))
1L
>>> long(round(float('1.9')))
2L

To all of you who got here and did not found the right solution, i found out that the mp4 video needs to fit a specific format.

My Problem was that i got an 1920x1080 video which wont load under Chrome (under Firefox it worked like a charm). After hours of searching i finaly managed to get hang of the problem, the first few streams where 1912x1088 so Chrome wont play it ( i got the exact stream size from the tool MediaInfo). So to fix it i just resized it to 1920x1080 and it worked.

#This program is to read from excel workbook to fetch only the URL domain names and write to the existing excel workbook in a different sheet..
#Developer - Nilesh K
import pandas as pd
from openpyxl import load_workbook #for writting to the existing workbook

df = pd.read_excel("urlsearch_test.xlsx")

#You can use the below for the relative path.
# r"C:\Users\xyz\Desktop\Python\

l = [] #To make a list in for loop

#begin
#loop starts here for fetching http from a string and iterate thru the entire sheet. You can have your own logic here.
for index, row in df.iterrows():
    try: 
        str = (row['TEXT']) #string to read and iterate
        y = (index)
        str_pos = str.index('http') #fetched the index position for http
        str_pos1 = str.index('/', str.index('/')+2) #fetched the second 3rd position of / starting from http
        str_op = str[str_pos:str_pos1] #Substring the domain name
        l.append(str_op) #append the list with domain names

    #Error handling to skip the error rows and continue.
    except ValueError:
            print('Error!')
print(l)
l = list(dict.fromkeys(l)) #Keep distinct values, you can comment this line to get all the values
df1 = pd.DataFrame(l,columns=['URL']) #Create dataframe using the list
#end

#Write using openpyxl so it can be written to same workbook
book = load_workbook('urlsearch_test.xlsx')
writer = pd.ExcelWriter('urlsearch_test.xlsx',engine = 'openpyxl')
writer.book = book
df1.to_excel(writer,sheet_name = 'Sheet3')
writer.save()
writer.close()

#The below can be used to write to a different workbook without using openpyxl
#df1.to_excel(r"C:\Users\xyz\Desktop\Python\urlsearch1_test.xlsx",index='false',sheet_name='sheet1')

echo "$(basename "`test -L ${BASH_SOURCE[0]} \
                   && readlink ${BASH_SOURCE[0]} \
                   || echo ${BASH_SOURCE[0]}`")"

killall -9 ruby will kill all the ruby processes, and at-least on my machine, rails servers appear as ruby processes. killall -9 rails is much more specific and doesn't work for older versions of rails servers (it gives a 'rails:no process found' because the process is named ruby)

Encountered this problem a while ago. After submitting a form in activeadmin, the rails server just hanged and I was unable to kill it using normal means (even after ctrl+z it was still running in the background). Learner's answer helped, but this command doesn't need process id.

Use the properties-maven-plugin to write specific pom properties to a file at compile time, and then read that file at run time.

In your pom.xml:

<properties>
     <name>${project.name}</name>
     <version>${project.version}</version>
     <foo>bar</foo>
</properties>

<build>
    <plugins>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>properties-maven-plugin</artifactId>
            <version>1.0.0</version>
            <executions>
                <execution>
                    <phase>generate-resources</phase>
                    <goals>
                        <goal>write-project-properties</goal>
                    </goals>
                    <configuration>
                        <outputFile>${project.build.outputDirectory}/my.properties</outputFile>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

And then in .java:

java.io.InputStream is = this.getClass().getResourceAsStream("my.properties");
java.util.Properties p = new Properties();
p.load(is);
String name = p.getProperty("name");
String version = p.getProperty("version");
String foo = p.getProperty("foo");

My functional approach. its capstilise first character in sentence after whitescape in whole paragraph.

For capatilising only first character of the word just remove .split(" ")

           b.name.split(" ")
                 .filter { !it.isEmpty() }
                 .map { it.substring(0, 1).toUpperCase() 
                 +it.substring(1).toLowerCase() }
                  .joinToString(" ")

You can implement a SoapExtension that logs the full request and response to a log file. You can then enable the SoapExtension in the web.config, which makes it easy to turn on/off for debugging purposes. Here is an example that I have found and modified for my own use, in my case the logging was done by log4net but you can replace the log methods with your own.

public class SoapLoggerExtension : SoapExtension
{
    private static readonly ILog log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
    private Stream oldStream;
    private Stream newStream;

    public override object GetInitializer(LogicalMethodInfo methodInfo, SoapExtensionAttribute attribute)
    {
        return null;
    }

    public override object GetInitializer(Type serviceType)
    {
        return null;
    }

    public override void Initialize(object initializer)
    {

    }

    public override System.IO.Stream ChainStream(System.IO.Stream stream)
    {
        oldStream = stream;
        newStream = new MemoryStream();
        return newStream;
    }

    public override void ProcessMessage(SoapMessage message)
    {

        switch (message.Stage)
        {
            case SoapMessageStage.BeforeSerialize:
                break;
            case SoapMessageStage.AfterSerialize:
                Log(message, "AfterSerialize");
                    CopyStream(newStream, oldStream);
                    newStream.Position = 0;
                break;
                case SoapMessageStage.BeforeDeserialize:
                    CopyStream(oldStream, newStream);
                    Log(message, "BeforeDeserialize");
                break;
            case SoapMessageStage.AfterDeserialize:
                break;
        }
    }

    public void Log(SoapMessage message, string stage)
    {

        newStream.Position = 0;
        string contents = (message is SoapServerMessage) ? "SoapRequest " : "SoapResponse ";
        contents += stage + ";";

        StreamReader reader = new StreamReader(newStream);

        contents += reader.ReadToEnd();

        newStream.Position = 0;

        log.Debug(contents);
    }

    void ReturnStream()
    {
        CopyAndReverse(newStream, oldStream);
    }

    void ReceiveStream()
    {
        CopyAndReverse(newStream, oldStream);
    }

    public void ReverseIncomingStream()
    {
        ReverseStream(newStream);
    }

    public void ReverseOutgoingStream()
    {
        ReverseStream(newStream);
    }

    public void ReverseStream(Stream stream)
    {
        TextReader tr = new StreamReader(stream);
        string str = tr.ReadToEnd();
        char[] data = str.ToCharArray();
        Array.Reverse(data);
        string strReversed = new string(data);

        TextWriter tw = new StreamWriter(stream);
        stream.Position = 0;
        tw.Write(strReversed);
        tw.Flush();
    }
    void CopyAndReverse(Stream from, Stream to)
    {
        TextReader tr = new StreamReader(from);
        TextWriter tw = new StreamWriter(to);

        string str = tr.ReadToEnd();
        char[] data = str.ToCharArray();
        Array.Reverse(data);
        string strReversed = new string(data);
        tw.Write(strReversed);
        tw.Flush();
    }

    private void CopyStream(Stream fromStream, Stream toStream)
    {
        try
        {
            StreamReader sr = new StreamReader(fromStream);
            StreamWriter sw = new StreamWriter(toStream);
            sw.WriteLine(sr.ReadToEnd());
            sw.Flush();
        }
        catch (Exception ex)
        {
            string message = String.Format("CopyStream failed because: {0}", ex.Message);
            log.Error(message, ex);
        }
    }
}

[AttributeUsage(AttributeTargets.Method)]
public class SoapLoggerExtensionAttribute : SoapExtensionAttribute
{
    private int priority = 1; 

    public override int Priority
    {
        get { return priority; }
        set { priority = value; }
    }

    public override System.Type ExtensionType
    {
        get { return typeof (SoapLoggerExtension); }
    }
}

You then add the following section to your web.config where YourNamespace and YourAssembly point to the class and assembly of your SoapExtension:

<webServices>
  <soapExtensionTypes>
    <add type="YourNamespace.SoapLoggerExtension, YourAssembly" 
       priority="1" group="0" />
  </soapExtensionTypes>
</webServices>

Disclaimer: I'm the author of jgeXml.

jgexml has Node.js based utility xsd2json which does a transformation between an XML schema (XSD) and a JSON schema file.

As with other options, it's not a 1:1 conversion, and you may need to hand-edit the output to improve the JSON schema validation, but it has been used to represent a complex XML schema inside an OpenAPI (swagger) definition.

A sample of the purchaseorder.xsd given in another answer is rendered as:

"PurchaseOrderType": {
  "type": "object",
  "properties": {
    "shipTo": {
      "$ref": "#/definitions/USAddress"
    },
    "billTo": {
      "$ref": "#/definitions/USAddress"
    },
    "comment": {
      "$ref": "#/definitions/comment"
    },
    "items": {
      "$ref": "#/definitions/Items"
    },
    "orderDate": {
      "type": "string",
      "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}.*$"
    }
  },

You can split date month year from current date as follows:

DateTime todaysDate = DateTime.Now.Date;

Day:

int day = todaysDate.Day;

Month:

int month = todaysDate.Month;

Year:

int year = todaysDate.Year;

if i understood you can do the following

Right Click on View Name in SQL Server Management Studio -> Script View As ->CREATE To ->New Query Window

For completeness, I'll mention that Oracle 12c does support this feature. Also it's supposedly faster than the triggers approach. For example:

CREATE TABLE foo
  (
    id NUMBER GENERATED BY DEFAULT AS IDENTITY (
    START WITH 1 NOCACHE ORDER ) NOT NULL ,
    name       VARCHAR2 (50)
  )
  LOGGING ;
ALTER TABLE foo ADD CONSTRAINT foo_PK PRIMARY KEY ( id ) ;

You could put a _ViewStart.cshtml file inside the /Views/Public folder which would override the default one in the /Views folder and specify the desired layout:

@{
    Layout = "~/Views/Shared/_PublicLayout.cshtml";
}

By analogy you could put another _ViewStart.cshtml file inside the /Views/Staff folder with:

@{
    Layout = "~/Views/Shared/_StaffLayout.cshtml";
}

You could also specify which layout should be used when returning a view inside a controller action but that's per action:

return View("Index", "~/Views/Shared/_StaffLayout.cshtml", someViewModel);

Yet another possibility is a custom action filter which would override the layout. As you can see many possibilities to achieve this. Up to you to choose which one fits best in your scenario.

UPDATE:

As requested in the comments section here's an example of an action filter which would choose a master page:

public class LayoutInjecterAttribute : ActionFilterAttribute
{
    private readonly string _masterName;
    public LayoutInjecterAttribute(string masterName)
    {
        _masterName = masterName;
    }

    public override void OnActionExecuted(ActionExecutedContext filterContext)
    {
        base.OnActionExecuted(filterContext);
        var result = filterContext.Result as ViewResult;
        if (result != null)
        {
            result.MasterName = _masterName;
        }
    }
}

and then decorate a controller or an action with this custom attribute specifying the layout you want:

[LayoutInjecter("_PublicLayout")]
public ActionResult Index()
{
    return View();
}

From Oracle's java tutorial

import java.net.*;
import java.io.*;

public class URLConnectionReader {
    public static void main(String[] args) throws Exception {
        URL yahoo = new URL("http://www.yahoo.com/");
        URLConnection yc = yahoo.openConnection();
        BufferedReader in = new BufferedReader(
                                new InputStreamReader(
                                yc.getInputStream()));
        String inputLine;

        while ((inputLine = in.readLine()) != null) 
            System.out.println(inputLine);
        in.close();
    }
}

Use this code it will help you.

<script>
InitializeDate();
</script>




<input type="text" id="txtFromDate" class="datepicker calendar-icon" placeholder="From Date" style="width: 100px; margin-right: 10px; padding: 0px 0px 0px 7px;">
        <input type="text" id="txtToDate" class="datepicker calendar-icon" placeholder="To Date" style="width: 100px; margin-right: 10px; padding: 0px 0px 0px 7px;">


function InitializeDate() {
    var date = new Date();
    var dd = date.getDate();             
    var mm = date.getMonth() + 1;
    var yyyy = date.getFullYear();

    var ToDate = mm + '/' + dd + '/' + yyyy;
    var FromDate = mm + '/01/' + yyyy;
    $('#txtToDate').datepicker('setDate', ToDate);
    $('#txtFromDate').datepicker('setDate', FromDate);
}

If you're trying to stop someone from updating the checkbox so it appears disabled then just use JQuery

$('input[type=checkbox]').click(false);

You can then style the checkbox.

There is also:

try:
    del mydict[key]
except KeyError:
    pass

This only does 1 lookup instead of 2. However, except clauses are expensive, so if you end up hitting the except clause frequently, this will probably be less efficient than what you already have.

if ($number % 6 != 0) {
  $number += 6 - ($number % 6);
}

The modulus operator gives the remainder of the division, so $number % 6 is the amount left over when dividing by 6. This will be faster than doing a loop and continually rechecking.

If decreasing is acceptable then this is even faster:

$number -= $number % 6;

As the alert method in JavaScript does not return a Boolean or yield the current thread, you must use a different method.

My number one recommendation requires a little CSS experience. You should instead create a div element that is fixed positionally.

Otherwise you could use the confirm() method.

confirm("Successful Message");
window.location.reload();

However, this will add a cancel button. Because the confirm method is not within an if statement though, the cancel button will still refresh the page like you want it.

I may be simplifying the issue, but does td {border-right: 1px solid red;} work for your table setup?

Android complete source code for adding events and reminders with start and end time format.

/** Adds Events and Reminders in Calendar. */
private void addReminderInCalendar() {
    Calendar cal = Calendar.getInstance();
    Uri EVENTS_URI = Uri.parse(getCalendarUriBase(true) + "events");
    ContentResolver cr = getContentResolver();
    TimeZone timeZone = TimeZone.getDefault();

    /** Inserting an event in calendar. */
    ContentValues values = new ContentValues();
    values.put(CalendarContract.Events.CALENDAR_ID, 1);
    values.put(CalendarContract.Events.TITLE, "Sanjeev Reminder 01");
    values.put(CalendarContract.Events.DESCRIPTION, "A test Reminder.");
    values.put(CalendarContract.Events.ALL_DAY, 0);
    // event starts at 11 minutes from now
    values.put(CalendarContract.Events.DTSTART, cal.getTimeInMillis() + 11 * 60 * 1000);
    // ends 60 minutes from now
    values.put(CalendarContract.Events.DTEND, cal.getTimeInMillis() + 60 * 60 * 1000);
    values.put(CalendarContract.Events.EVENT_TIMEZONE, timeZone.getID());
    values.put(CalendarContract.Events.HAS_ALARM, 1);
    Uri event = cr.insert(EVENTS_URI, values);

    // Display event id
    Toast.makeText(getApplicationContext(), "Event added :: ID :: " + event.getLastPathSegment(), Toast.LENGTH_SHORT).show();

    /** Adding reminder for event added. */
    Uri REMINDERS_URI = Uri.parse(getCalendarUriBase(true) + "reminders");
    values = new ContentValues();
    values.put(CalendarContract.Reminders.EVENT_ID, Long.parseLong(event.getLastPathSegment()));
    values.put(CalendarContract.Reminders.METHOD, Reminders.METHOD_ALERT);
    values.put(CalendarContract.Reminders.MINUTES, 10);
    cr.insert(REMINDERS_URI, values);
}

/** Returns Calendar Base URI, supports both new and old OS. */
private String getCalendarUriBase(boolean eventUri) {
    Uri calendarURI = null;
    try {
        if (android.os.Build.VERSION.SDK_INT <= 7) {
            calendarURI = (eventUri) ? Uri.parse("content://calendar/") : Uri.parse("content://calendar/calendars");
        } else {
            calendarURI = (eventUri) ? Uri.parse("content://com.android.calendar/") : Uri
                    .parse("content://com.android.calendar/calendars");
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return calendarURI.toString();
}

Add permission to your Manifest file.

<uses-permission android:name="android.permission.READ_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_CALENDAR" />

To achieve this you would do something like:

n=L[0][0]
m=len(A)
for i in range(m):
    for j in range(m):
        if L[i][j]==n:
            //do some processing
        else:
            break;

Drag and drop a Python file in the Ipython notebooks "home" notebooks table, click upload. This will create a new notebook with only one cell containing your .py file content

Else copy/paste from your favorite editor ;)

you use the scrollTop attribute

var position = document.getElementById('id').scrollTop;

I know this is a bit of an older question, but it is one I had as well, and while the accepted answers work, there is a way to do something similar without using additional packages like ggplot or lattice. It isn't quite as nice in that the boxplots overlap rather than showing side by side but:

boxplot(data1[,1:4])
boxplot(data2[,1:4],add=TRUE,border="red")

This puts in two sets of boxplots, with the second having an outline (no fill) in red, and also puts the outliers in red. The nice thing is, it works for two different dataframes rather than trying to reshape them. Quick and dirty way.

you can also check validation of phone number as

     /**
     * Validation of Phone Number
     */
    public final static boolean isValidPhoneNumber(CharSequence target) {
        if (target == null || target.length() < 6 || target.length() > 13) {
            return false;
        } else {
            return android.util.Patterns.PHONE.matcher(target).matches();
        }

    }

MySql Connector/NET also includes a stored procedure debugger integrated in visual studio as of version 6.6, You can get the installer and the source here: http://dev.mysql.com/downloads/connector/net/

Some documentation / screenshots: https://dev.mysql.com/doc/visual-studio/en/visual-studio-debugger.html

You can follow the annoucements here: http://forums.mysql.com/read.php?38,561817,561817#msg-561817

UPDATE: The MySql for Visual Studio was split from Connector/NET into a separate product, you can pick it (including the debugger) from here https://dev.mysql.com/downloads/windows/visualstudio/1.2.html (still free & open source).

DISCLAIMER: I was the developer who authored the Stored procedures debugger engine for MySQL for Visual Studio product.

$(document).ready(function(){
   $('.somediv').click(function(){
   $(this).addClass('newDiv'); // this means the div which is clicked
   });                         // so instead of using a selector again $('.somediv');
});                           // you use $(this) which much better and neater:=)

abstraction is hiding non useful data from users and encapsulation is bind together data into a capsule (a class). I think encapsulation is way that we achieve abstraction.

I needed this for a dictionary instead of list, Jochen solution was the most elegant for that case so I modded it a bit:

class CaseInsensitiveDict(dict):
    ''' requests special dicts are case insensitive when using the in operator,
     this implements a similar behaviour'''
    def __contains__(self, name): # implements `in`
        return name.casefold() in (n.casefold() for n in self.keys())

now you can convert a dictionary like so USERNAMESDICT = CaseInsensitiveDict(USERNAMESDICT) and use if 'MICHAEL89' in USERNAMESDICT:

if you use Vuejs, just make it by vue-shortkey plugin, everything will be simple

https://www.npmjs.com/package/vue-shortkey

v-shortkey="['meta', 'enter']"·
@shortkey="metaEnterTrigged"