Your app is crashing at:

welcomePlayer.setText("Welcome Back, " + String.valueOf(mPlayer.getName(this)) + " !");

because mPlayer=null.

You forgot to initialize Player mPlayer in your PlayGame Activity.

mPlayer = new Player(context,"");

This configuration to your nginx.conf should help you.

https://gist.github.com/baskaran-md/e46cc25ccfac83f153bb

server {
    listen       80;
    server_name  localhost;

    location / {
        root   html;
        index  index.html index.htm;
    }

    error_page  404     /404.html;
    error_page  403     /403.html;

    # To allow POST on static pages
    error_page  405     =200 $uri;

    # ...
}

Entering: /usr/bin/gcc worked for me.

This works for me:

seekbarPlayer.setMax(mp.getDuration());
getActivity().runOnUiThread(new Runnable() {

    @Override
    public void run() {
        if(mp != null){
            seekbarPlayer.setProgress(mp.getCurrentPosition());
        }
        mHandler.postDelayed(this, 1000);
    }
});

On macOS 10.12.x (Sierra), if you have spaces in file names or subdirectories, you can use the following:

find . -name '*.swift' -exec echo '"{}"' \; |xargs wc -l

Just to build on vinnief's hacky solution above, I use MsgBox like this:

Browser.msgBox('BorderoToMatriz', Browser.Buttons.OK_CANCEL);

and it acts kinda like a break point, stops the script and outputs whatever string you need to a pop-up box. I find especially in Sheets, where I have trouble with Logger.log, this provides an adequate workaround most times.

To find all the filenames use os.listdir().

Then you loop over the filenames. Like so:

import os
for filename in os.listdir('dirname'):
     callthecommandhere(blablahbla, filename, foo)

If you prefer subprocess, use subprocess. :-)

krosenvold's answer inspired the following script which does the following:

• get the dd dump via ssh from a remote server (as gz file)
• unzip the dump
• convert it to vmware

the script is restartable and checks the existence of the intermediate files. It also uses pv and qemu-img -p to show the progress of each step.

In my environment 2 x Ubuntu 12.04 LTS the steps took:

• 3 hours to get a 47 GByte disk dump of a 60 GByte partition
• 20 minutes to unpack to a 60 GByte dd file
• 45 minutes to create the vmware file

#!/bin/bash
# get a dd disk dump and convert it to vmware
#  see http://stackoverflow.com/questions/454899/how-to-convert-flat-raw-disk-image-to-vmdk-for-virtualbox-or-vmplayer
#  Author: wf  2014-10-1919

#
# get a dd dump from the given host's given disk and create a compressed
#   image at the given target 
#
#  1: host e.g. somehost.somedomain
#  2: disk e.g. sda
#  3: target e.g. image.gz
#
# http://unix.stackexchange.com/questions/132797/how-to-use-ssh-to-make-a-dd-copy-of-disk-a-from-host-b-and-save-on-disk-b
getdump() {
  local l_host="$1"
  local l_disk="$2"
  local l_target="$3"
  echo "getting disk dump of $l_disk from $l_host"
  ssh $l_host sudo fdisk -l  | egrep "^/dev/$l_disk"
  if [ $? -ne 0 ]
  then
    echo "device $l_disk does not exist on host $l_host" 1>&2
    exit 1
  else
    if [ ! -f $l_target ]
    then
      ssh $l_host "sudo dd if=/dev/$disk bs=1M | gzip -1 -" | pv | dd of=$l_target
    else
      echo "$l_target already exists"
    fi
  fi
}

#
# optionally install command from package if it is not available yet
# 1: command
# 2: package
#
opt_install() {
  l_command="$1"
  l_package="$2"
  echo "checking that $l_command from package $l_package  is installed ..."
  which $l_command
  if [ $? -ne 0 ]
  then
    echo "installing $l_package to make $l_command available ..."
    sudo apt-get install $l_package 
  fi
}

#
# convert the given image to vmware
#  1: the dd dump image
#  2: the vmware image file to convert to
#
vmware_convert() {
  local l_ddimage="$1"
  local l_vmwareimage="$2"
  echo "converting dd image $l_image to vmware $l_vmwareimage"
  #  convert to VMware disk format showing progess
  # see http://manpages.ubuntu.com/manpages/precise/man1/qemu-img.1.html
  qemu-img convert -p -O vmdk "$l_ddimage" "$l_vmwareimage"
}

#
# show usage
#
usage() {
  echo "usage: $0 host device"
  echo "      host: the host to get the disk dump from e.g. frodo.lotr.org"  
  echo "            you need ssh and sudo privileges on that host"
  echo "
  echo "    device: the disk to dump from e.g. sda"
  echo ""
  echo "  examples:
  echo "       $0 frodo.lotr.org sda"
  echo "       $0 gandalf.lotr.org sdb"
  echo ""
  echo "  the needed packages pv and qemu-utils will be installed if not available"
  echo "  you need local sudo rights for this to work"
  exit 1
}

# check arguments
if [ $# -lt 2 ]
then
  usage
fi

# get the command line parameters
host="$1"
disk="$2"

# calculate the names of the image files
ts=`date "+%Y-%m-%d"`
# prefix of all images
#   .gz the zipped dd
#   .dd the disk dump file
#   .vmware - the vmware disk file
image="${host}_${disk}_image_$ts"

echo "$0 $host/$disk ->  $image"

# first check/install necessary packages
opt_install qemu-img qemu-utils
opt_install pv pv

# check if dd files was already loaded
#  we don't want to start this tedious process twice if avoidable
if [ ! -f $image.gz ]
then
  getdump $host $disk $image.gz
else
  echo "$image.gz already downloaded"
fi

# check if the dd file was already uncompressed
# we don't want to start this tedious process twice if avoidable
if [ ! -f $image.dd ]
then
  echo "uncompressing $image.gz"
  zcat $image.gz | pv -cN zcat > $image.dd
else
  echo "image $image.dd already uncompressed"
fi
# check if the vmdk file was already converted
# we don't want to start this tedious process twice if avoidable
if [ ! -f $image.vmdk ]
then
  vmware_convert $image.dd $image.vmdk
else
  echo "vmware image $image.vmdk already converted"
fi

Dynatrace AJAX Edition shows you the exact sequence of page loading, parsing and execution.

Add a column to the left so that B10 to B20 is your named range Age.

Set A10 to A20 so that A10 = 1, A11= 2,... A20 = 11 and give the range A10 to A20 a name e.g. AgeIndex.

The 5th element can be then found by using an array formula:

=sum( Age * (1 * (AgeIndex = 5) )

As it's an array formula you'll need to press Ctrl + Shift + Return to make it work and not just return. Doing that, the formula will be turned into an array formula:

{=sum( Age * (1 * (AgeIndex = 5) )}

Since C++17, static members may be defined in the header with the inline keyword.

http://en.cppreference.com/w/cpp/language/static

"A static data member may be declared inline. An inline static data member can be defined in the class definition and may specify a default member initializer. It does not need an out-of-class definition:"

struct X
{
    inline static int n = 1;
};

A LEFT JOIN is absolutely not faster than an INNER JOIN. In fact, it's slower; by definition, an outer join (LEFT JOIN or RIGHT JOIN) has to do all the work of an INNER JOIN plus the extra work of null-extending the results. It would also be expected to return more rows, further increasing the total execution time simply due to the larger size of the result set.

(And even if a LEFT JOIN were faster in specific situations due to some difficult-to-imagine confluence of factors, it is not functionally equivalent to an INNER JOIN, so you cannot simply go replacing all instances of one with the other!)

Most likely your performance problems lie elsewhere, such as not having a candidate key or foreign key indexed properly. 9 tables is quite a lot to be joining so the slowdown could literally be almost anywhere. If you post your schema, we might be able to provide more details.

Edit:

Reflecting further on this, I could think of one circumstance under which a LEFT JOIN might be faster than an INNER JOIN, and that is when:

• Some of the tables are very small (say, under 10 rows);
• The tables do not have sufficient indexes to cover the query.

Consider this example:

CREATE TABLE #Test1
(
    ID int NOT NULL PRIMARY KEY,
    Name varchar(50) NOT NULL
)
INSERT #Test1 (ID, Name) VALUES (1, 'One')
INSERT #Test1 (ID, Name) VALUES (2, 'Two')
INSERT #Test1 (ID, Name) VALUES (3, 'Three')
INSERT #Test1 (ID, Name) VALUES (4, 'Four')
INSERT #Test1 (ID, Name) VALUES (5, 'Five')

CREATE TABLE #Test2
(
    ID int NOT NULL PRIMARY KEY,
    Name varchar(50) NOT NULL
)
INSERT #Test2 (ID, Name) VALUES (1, 'One')
INSERT #Test2 (ID, Name) VALUES (2, 'Two')
INSERT #Test2 (ID, Name) VALUES (3, 'Three')
INSERT #Test2 (ID, Name) VALUES (4, 'Four')
INSERT #Test2 (ID, Name) VALUES (5, 'Five')

SELECT *
FROM #Test1 t1
INNER JOIN #Test2 t2
ON t2.Name = t1.Name

SELECT *
FROM #Test1 t1
LEFT JOIN #Test2 t2
ON t2.Name = t1.Name

DROP TABLE #Test1
DROP TABLE #Test2

If you run this and view the execution plan, you'll see that the INNER JOIN query does indeed cost more than the LEFT JOIN, because it satisfies the two criteria above. It's because SQL Server wants to do a hash match for the INNER JOIN, but does nested loops for the LEFT JOIN; the former is normally much faster, but since the number of rows is so tiny and there's no index to use, the hashing operation turns out to be the most expensive part of the query.

You can see the same effect by writing a program in your favourite programming language to perform a large number of lookups on a list with 5 elements, vs. a hash table with 5 elements. Because of the size, the hash table version is actually slower. But increase it to 50 elements, or 5000 elements, and the list version slows to a crawl, because it's O(N) vs. O(1) for the hashtable.

But change this query to be on the ID column instead of Name and you'll see a very different story. In that case, it does nested loops for both queries, but the INNER JOIN version is able to replace one of the clustered index scans with a seek - meaning that this will literally be an order of magnitude faster with a large number of rows.

So the conclusion is more or less what I mentioned several paragraphs above; this is almost certainly an indexing or index coverage problem, possibly combined with one or more very small tables. Those are the only circumstances under which SQL Server might sometimes choose a worse execution plan for an INNER JOIN than a LEFT JOIN.

if your need multiple read-only fields.you can use any of methods given below

method 1

class ItemForm(ModelForm):
    readonly = ('sku',)

    def __init__(self, *arg, **kwrg):
        super(ItemForm, self).__init__(*arg, **kwrg)
        for x in self.readonly:
            self.fields[x].widget.attrs['disabled'] = 'disabled'

    def clean(self):
        data = super(ItemForm, self).clean()
        for x in self.readonly:
            data[x] = getattr(self.instance, x)
        return data

method 2

inheritance method

class AdvancedModelForm(ModelForm):


    def __init__(self, *arg, **kwrg):
        super(AdvancedModelForm, self).__init__(*arg, **kwrg)
        if hasattr(self, 'readonly'):
            for x in self.readonly:
                self.fields[x].widget.attrs['disabled'] = 'disabled'

    def clean(self):
        data = super(AdvancedModelForm, self).clean()
        if hasattr(self, 'readonly'):
            for x in self.readonly:
                data[x] = getattr(self.instance, x)
        return data


class ItemForm(AdvancedModelForm):
    readonly = ('sku',)

You can either use the readonly or the disabled attribute. Note that when disabled, the input's value will not be submitted when submitting the form.

<input id="price_to" value="price to" readonly="readonly">
<input id="price_to" value="price to" disabled="disabled">

I was also facing the same issue when I was trying to get JPA entity manager configured in Tomcat 8. First I has an issue with the SystemException class not being found and hence the entityManagerFactory was not being created. I removed the hibernate entity manager dependency and then my entityManagerFactory was not able to lookup for the persistence provider. After going thru a lot of research and time got to know that hibernate entity manager is must to lookup for some configuration. Then put back the entity manager jar and then added JTA Api as a dependency and it worked fine.

I have a label on my form receiving the sum of numbers from Column D in Sheet1. I am only interested in rows 2 to 50, you can use a row counter if your row count is dynamic. I have some blank entries as well in column D and they are ignored.

Me.lblRangeTotal = Application.WorksheetFunction.Sum(ThisWorkbook.Sheets("Sheet1").Range("D2:D50"))

Unfortunately the native browser present on Android devices not support this type of file. Let's see if in the 4.0 we will be able to do that.

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

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

but not

p "\n\n"

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

Hope will work for you!!

I really needed to do this dirty thing... Here is how

I redefined those dependencies with scope test. Scope provided did not work for me.

We use spring Boot plugin to build fat jar. We have module common which defines common libraries, for example Springfox swagger-2. My super-service needs to have parent common (it does not want to do so, but company rules force!)

So my parent or commons has pom.

<dependencyManagement>

    <!- I do not need Springfox in one child but in others ->

    <dependencies>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>${swagger.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>com.google.guava</groupId>
                    <artifactId>guava</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>${swagger.version}</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-bean-validators</artifactId>
            <version>${swagger.version}</version>
        </dependency>

       <!- All services need them ->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>${apache.poi.version}</version>
        </dependency>
    </dependencies>
</dependencyManagement>

And my super-service pom.

<name>super-service</name>
<parent>
    <groupId>com.company</groupId>
    <artifactId>common</artifactId>
    <version>1</version>
</parent>

<dependencies>

    <!- I don't need them ->

    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger2</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-bean-validators</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-core</artifactId>
        <version>2.8.0</version>
        <scope>test</scope>
    </dependency>

    <!- Required dependencies ->

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
     <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
    </dependency>
</dependencies>

This is size of the final fat artifact

82.3 MB (86,351,753 bytes) - redefined dependency with scope test
86.1 MB (90,335,466 bytes) - redefined dependency with scope provided
86.1 MB (90,335,489 bytes) - without exclusion

Also this answer is worth mentioning - I wanted to do so, but I am lazy... https://stackoverflow.com/a/48103554/4587961

#include <bits/stdc++.h> is an implementation file for a precompiled header.

From, software engineering perspective, it is a good idea to minimize the include. If you use it actually includes a lot of files, which your program may not need, thus increase both compile-time and program size unnecessarily. [edit: as pointed out by @Swordfish in the comments that the output program size remains unaffected. But still, it's good practice to include only the libraries you actually need, unless it's some competitive competition]

But in contests, using this file is a good idea, when you want to reduce the time wasted in doing chores; especially when your rank is time-sensitive.

It works in most online judges, programming contest environments, including ACM-ICPC (Sub-Regionals, Regionals, and World Finals) and many online judges.

The disadvantages of it are that it:

• increases the compilation time.
• uses an internal non-standard header file of the GNU C++ library, and so will not compile in MSVC, XCode, and many other compilers

Use querySelector insted of getElementById();

var c = document.querySelector('#mainContent');
    c.appendChild(document.createElement('div'));

The following solution works for ASP.NET 5 (vNext) and it uses QueryHelpers class to build a URI with parameters.

    public Uri GetUri()
    {
        var location = _config.Get("http://iberia.com");
        Dictionary<string, string> values = GetDictionaryParameters();

        var uri = Microsoft.AspNetCore.WebUtilities.QueryHelpers.AddQueryString(location, values);
        return new Uri(uri);
    }

    private Dictionary<string,string> GetDictionaryParameters()
    {
        Dictionary<string, string> values = new Dictionary<string, string>
        {
            { "param1", "value1" },
            { "param2", "value2"},
            { "param3", "value3"}
        };
        return values;
    }

The result URI would have http://iberia.com?param1=value1&param2=value2&param3=value3

In Order to display action bar back button in Kotlin there are 2 way to implement it

1. using the default Action Bar provided by Android - Your activity must use a theme that has Action Bar - eg: Theme.AppCompat.Light.DarkActionBar

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    val actionBar = supportActionBar
    actionBar!!.title = "your title"
    actionBar.setDisplayHomeAsUpEnabled(true)
    //actionBar.setDisplayHomeAsUpEnabled(true)
}

override fun onSupportNavigateUp(): Boolean {
    onBackPressed()
    return true
}

2. Design your own Action Bar - disable default Action Bar - eg: Theme.AppCompat.Light.NoActionBar - add layout to your activity.xml

    <androidx.appcompat.widget.Toolbar
     android:id="@+id/main_toolbar"
     android:layout_width="match_parent"
     app:layout_constraintEnd_toEndOf="parent"
     app:layout_constraintStart_toStartOf="parent"
     app:layout_constraintTop_toTopOf="parent">

     <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         tools:layout_editor_absoluteX="16dp">

         <TextView
             android:id="@+id/main_toolbar_title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="Your Title"
             android:textSize="25sp"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintHorizontal_bias="0.5"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent" />

     </androidx.constraintlayout.widget.ConstraintLayout>
 </androidx.appcompat.widget.Toolbar>

• onCreate

override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)

     setSupportActionBar(findViewById(R.id.main_toolbar))
 }

• create your own button

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

 <item
     android:id="@+id/main_action_toolbar"
     android:icon="@drawable/ic_main_toolbar_item"
     android:title="find"
     android:layout_width="80dp"
     android:layout_height="35dp"
     app:actionLayout="@layout/toolbar_item"
     app:showAsAction="always"/>

</menu>

• in YourActivity.kt

override fun onCreateOptionsMenu(menu: Menu?): Boolean {
     menuInflater.inflate(R.menu.main_toolbar_item, menu)

     leftToolbarItems = menu!!.findItem(R.id.main_action_toolbar)
     val actionView = leftToolbarItems.actionView
     val badgeTextView = actionView.findViewById<TextView>(R.id.main_action_toolbar_badge)
     badgeTextView.visibility = View.GONE

     actionView.setOnClickListener {
         println("click on tool bar")
     }
     return super.onCreateOptionsMenu(menu)
 }

If your page really relies on the fact that people won't be able to see that menu, you should know that modern browsers (for example Firefox) let the user decide if he really wants to disable it or not. So you have no guarantee at all that the menu would be really disabled.

Here's a solution that uses a jQuery selector so you can easily target tags of any class, ID, type etc.

jQuery('div').on('click', function(){
    var node = jQuery(this).get(0);
    var range = document.createRange();
    range.selectNodeContents( node );
    window.getSelection().removeAllRanges();
    window.getSelection().addRange( range );
});

This question has been answered sufficiently many times, but with C# 7.2 and the introduction of the Span type, there is a faster way to do this in unsafe code:

public static class StringSupport
{
    private static readonly int _charSize = sizeof(char);

    public static unsafe byte[] GetBytes(string str)
    {
        if (str == null) throw new ArgumentNullException(nameof(str));
        if (str.Length == 0) return new byte[0];

        fixed (char* p = str)
        {
            return new Span<byte>(p, str.Length * _charSize).ToArray();
        }
    }

    public static unsafe string GetString(byte[] bytes)
    {
        if (bytes == null) throw new ArgumentNullException(nameof(bytes));
        if (bytes.Length % _charSize != 0) throw new ArgumentException($"Invalid {nameof(bytes)} length");
        if (bytes.Length == 0) return string.Empty;

        fixed (byte* p = bytes)
        {
            return new string(new Span<char>(p, bytes.Length / _charSize));
        }
    }
}

Keep in mind that the bytes represent a UTF-16 encoded string (called "Unicode" in C# land).

Some quick benchmarking shows that the above methods are roughly 5x faster than their Encoding.Unicode.GetBytes(...)/GetString(...) implementations for medium sized strings (30-50 chars), and even faster for larger strings. These methods also seem to be faster than using pointers with Marshal.Copy(..) or Buffer.MemoryCopy(...).

@Oriol has an excellent answer, sadly as of October 2017, neither display:contents, neither page-break-after is widely supported, better said it's about Firefox which supports this but not the other players, I have come up with the following "hack" which I consider better than hard coding in a break after every 3rd element, because that will make it very difficult to make the page mobile friendly.

As said it's a hack and the drawback is that you need to add quite a lot of extra elements for nothing, but it does the trick and works cross browser even on the dated IE11.

The "hack" is to simply add an additional element after each div, which is set to display:none and then used the css nth-child to decide which one of this should be actually made visible forcing a line brake like this:

.container {
  background: tomato;
  display: flex;
  flex-flow: row wrap;
  justify-content: space-between;
}
.item {
  width: 100px;
  background: gold;
  height: 100px;
  border: 1px solid black;
  font-size: 30px;
  line-height: 100px;
  text-align: center;
  margin: 10px
}
.item:nth-child(3n-1) {
  background: silver;
}
.breaker {
  display: none;
}
.breaker:nth-child(3n) {
  display: block;
  width: 100%;
  height: 0;
}

<div class="container">
  <div class="item">1</div>
  <p class="breaker"></p>
  
  <div class="item">2</div>
  <p class="breaker"></p>
  
  <div class="item">3</div>
  <p class="breaker"></p>
  
  <div class="item">4</div>
  <p class="breaker"></p>
  
  <div class="item">5</div>
  <p class="breaker"></p>
  
  <div class="item">6</div>
  <p class="breaker"></p>
  
  <div class="item">7</div>
  <p class="breaker"></p>
  
  <div class="item">8</div>
  <p class="breaker"></p>
  
  <div class="item">9</div>
  <p class="breaker"></p>
  
  <div class="item">10</div>
  <p class="breaker"></p>
</div>

You basically have two options, either define it as a service, or place it on your root scope. I would suggest that you make a service out of it to avoid polluting the root scope. You create a service and make it available in your controller like this:

<!doctype html>
<html ng-app="myApp">
<head>
    <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
    <script src="http://code.angularjs.org/1.1.2/angular.min.js"></script>
    <script type="text/javascript">
    var myApp = angular.module('myApp', []);

    myApp.factory('myService', function() {
        return {
            foo: function() {
                alert("I'm foo!");
            }
        };
    });

    myApp.controller('MainCtrl', ['$scope', 'myService', function($scope, myService) {
        $scope.callFoo = function() {
            myService.foo();
        }
    }]);
    </script>
</head>
<body ng-controller="MainCtrl">
    <button ng-click="callFoo()">Call foo</button>
</body>
</html>

If that's not an option for you, you can add it to the root scope like this:

<!doctype html>
<html ng-app="myApp">
<head>
    <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
    <script src="http://code.angularjs.org/1.1.2/angular.min.js"></script>
    <script type="text/javascript">
    var myApp = angular.module('myApp', []);

    myApp.run(function($rootScope) {
        $rootScope.globalFoo = function() {
            alert("I'm global foo!");
        };
    });

    myApp.controller('MainCtrl', ['$scope', function($scope){

    }]);
    </script>
</head>
<body ng-controller="MainCtrl">
    <button ng-click="globalFoo()">Call global foo</button>
</body>
</html>

That way, all of your templates can call globalFoo() without having to pass it to the template from the controller.

This worked for me. I made a function. Put this in your shell script:

sshcmd(){
    ssh $1@$2 $3
}

sshcmd USER HOST COMMAND

If you have multiple machines that you want to do the same command on you would repeat that line with a semi colon. For example, if you have two machines you would do this:

sshcmd USER HOST COMMAND ; sshcmd USER HOST COMMAND

Replace USER with the user of the computer. Replace HOST with the name of the computer. Replace COMMAND with the command you want to do on the computer.

Hope this helps!

You want to iterate through the list, sum all the numbers, and then divide the sum by the number of elements in the list. You can use a for loop to accomplish this.

average = 0
sum = 0    
for n in numbers:
    sum = sum + n
average = sum / len(numbers)

The for loop looks at each element in the list, and then adds it to the current sum. You then divide by the length of the list (or the number of elements in the list) to find the average.

I would recommend googling a python reference to find out how to use common programming concepts like loops and conditionals so that you feel comfortable when starting out. There are lots of great resources online that you could look up.

Good luck!

In Java 8 with streams, it's pretty simple actually. EDIT: Can be efficient without streams, see lower.

List<String> listA = Arrays.asList("2009-05-18","2009-05-19","2009-05-21");
List<String> listB = Arrays.asList("2009-05-18","2009-05-18","2009-05-19","2009-05-19",
                                   "2009-05-20","2009-05-21","2009-05-21","2009-05-22");

List<String> result = listB.stream()
                           .filter(not(new HashSet<>(listA)::contains))
                           .collect(Collectors.toList());

Note that the hash set is only created once: The method reference is tied to its contains method. Doing the same with lambda would require having the set in a variable. Making a variable is not a bad idea, especially if you find it unsightly or harder to understand.

You can't easily negate the predicate without something like this utility method (or explicit cast), as you can't call the negate method reference directly (type inference is needed first).

private static <T> Predicate<T> not(Predicate<T> predicate) {
    return predicate.negate();
}

If streams had a filterOut method or something, it would look nicer.

Also, @Holger gave me an idea. ArrayList has its removeAll method optimized for multiple removals, it only rearranges its elements once. However, it uses the contains method provided by given collection, so we need to optimize that part if listA is anything but tiny.

With listA and listB declared previously, this solution doesn't need Java 8 and it's very efficient.

List<String> result = new ArrayList(listB);
result.removeAll(new HashSet<>(listA));

Use genfromtxt instead. It's a much more general method than loadtxt:

import numpy as np
print np.genfromtxt('col.txt',dtype='str')

Using the file col.txt:

foo bar
cat dog
man wine

This gives:

[['foo' 'bar']
 ['cat' 'dog']
 ['man' 'wine']]

If you expect that each row has the same number of columns, read the first row and set the attribute filling_values to fix any missing rows.

Based on my experience, in a more recent version of Android, I believe it only allows Broadcast messages for Alarm wake up, not starting services directly. See this link: https://developer.android.com/training/scheduling/alarms, it says:

Alarms have these characteristics:

• They let you fire Intents at set times and/or intervals.
• You can use them in conjunction with broadcast receivers to start services and perform other operations.

The operative word in the second sentence is "conjunction." What it explicitly states is that alarms are design for Broadcast (which implies not for starting services directly). I tried for several hours to use a PendingIntent with getService(), but could not get it to work, even though I confirmed the pending intent was working correctly simply using:

pendingIntent.send(0);

For "targetSdkVersion 29" this did not work .. [would not fire onStartCommand()]:

Intent launchIntent = new Intent(context, MyService.class);
launchIntent.putExtra(Type.KEY, SERVER_QUERY);    
PendingIntent pendingIntent =
                PendingIntent.getService(context, 0, launchIntent, 0);

I could validate the alarm was running using:

adb shell dumpsys alarm | grep com.myapp

However, this did work:

public static class AlarmReceiverWakeup extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        Log.i(TAG, "onReceive Alarm wakeup");
        startService(context);
    }
}


public static void scheduleAlarmWakeup(Context context) {

    Intent broadcastIntent = new Intent(context, AlarmReceiverWakeup.class);
    broadcastIntent.putExtra(Type.KEY, SERVER_QUERY);    
    PendingIntent pendingIntent =
                    PendingIntent.getBroadcast(context, 0, broadcastIntent, 0);
    AlarmManager alarmManager =
                (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);

    // NOTE: using System.currentTimeMillis() fails w/ELAPSED_REALTIME_WAKEUP 
    //     use SystemClock.elapsedRealtime() instead
    alarmManager.setRepeating(
                AlarmManager.ELAPSED_REALTIME_WAKEUP,
                SystemClock.elapsedRealtime()+5000,
                AlarmManager.INTERVAL_FIFTEEN_MINUTES/4,
                getAlarmPendingIntent(context)
    );
}

BTW, this is the AndroidManifest.xml entry for the Broadcast Receiver:

<receiver android:name=".ServerQueryService$AlarmReceiverWakeup"
    android:enabled="true">
    <intent-filter>
        <category android:name="android.intent.category.DEFAULT"/>
    </intent-filter>
</receiver>

You can do it like this:

DataTable dt = new DataTable("MyTable");

foreach (DataRow row in dt.Rows)
{
    foreach (DataColumn column in dt.Columns)
    {
        if (row[column] != null) // This will check the null values also (if you want to check).
        {
               // Do whatever you want.
        }
     }
}

This depends on implementation, but the general rule is that the domain is checked against all SANs and the common name. If the domain is found there, then the certificate is ok for connection.

RFC 5280, section 4.1.2.6 says "The subject name MAY be carried in the subject field and/or the subjectAltName extension". This means that the domain name must be checked against both SubjectAltName extension and Subject property (namely it's common name parameter) of the certificate. These two places complement each other, and not duplicate it. And SubjectAltName is a proper place to put additional names, such as www.domain.com or www2.domain.com

Update: as per RFC 6125, published in 2011, the validator must check SAN first, and if SAN exists, then CN should not be checked. Note that RFC 6125 is relatively recent and there still exist certificates and CAs that issue certificates, which include the "main" domain name in CN and alternative domain names in SAN. I.e. by excluding CN from validation if SAN is present, you can deny some otherwise valid certificate.

I built a tool for meta generation. It pre-configures entries for Facebook, Google+ and Twitter, and you can use it free here: http://www.groovymeta.com

To answer the question a bit more, OG tags (Open Graph) tags work similarly to meta tags, and should be placed in the HEAD section of your HTML file. See Facebook's best practises for more information on how to use OG tags effectively.

I had the same issue and no solution above worked for me and it sort of felt like guess work thereafter. However, wrapping my code which creates the object in a setTimeout function did the trick for me.

setTimeout(function() {
   var myObj = xyz; //some code for creation of complex object like above
   console.log(myObj); // this works
   console.log(myObj.propertyName); // this works too
});

It imports once when the function is called for the first time.

I could imagine doing it this way if I had a function in an imported module that is used very seldomly and is the only one requiring the import. Looks rather far-fetched, though...

Just in case someone is struggling with this, in my case I'm using Gradle 1.4 beta 1 and I NEED to keep it. So in order to make Android Studio works go to the terminal and run this:

launchctl setenv ANDROID_DAILY_OVERRIDE <your-value-on-error-message>

Restart Android Studio and the project will build again.

Kudos to UPDATE 2 here: https://emmanuelbernard.com/blog/2012/05/09/setting-global-variables-intellij/

That looks like you tried to add the libraries servlet.jar or servlet-api.jar into your project /lib/ folder, but Tomcat already should provide you with those libraries. Remove them from your project and classpath. Search for that anywhere in your project or classpath and remove it.

These might work. I don't know how they behave when running as a service. They aren't portable, but that's what os.name and ifstatements are for.

win32api.GetUserName()

win32api.GetUserNameEx(...) 

See: http://timgolden.me.uk/python/win32_how_do_i/get-the-owner-of-a-file.html

app.js

let { func_name } = require('path_to_tools.js');
func_name();    //function calling

tools.js

let func_name = function() {
    ...
    //function body
    ...
};

module.exports = { func_name };

This will do the trick

.gallery-item
{
  opacity:1;
}

.gallery-item:hover
{
  opacity:0;
  transition: opacity .2s ease-out;
  -moz-transition: opacity .2s ease-out;
  -webkit-transition: opacity .2s ease-out;
  -o-transition: opacity .2s ease-out;
}

When upgrading to the release version of Android Studio, you may be automatically switched to the new Android project View (see here for more info). If you swap back to either the Project or Packages view, you should see the standard folder hierarchy of a Gradle-based project. Then refer to CommonsWare's answer for the appropriate location.

$get_url = "http://google.com/?var=234&key=234";
$my_url = "http://localhost/test.php?id=" . urlencode($get_url);

$my_url outputs:

http://localhost/test.php?id=http%3A%2F%2Fgoogle.com%2F%3Fvar%3D234%26key%3D234

So now you can get this value using $_GET['id'] or $_REQUEST['id'] (decoded).

echo urldecode($_GET["id"]);

Output

http://google.com/?var=234&key=234

To get every GET parameter:

foreach ($_GET as $key=>$value) {
  echo "$key = " . urldecode($value) . "<br />\n";
  }

$key is GET key and $value is GET value for $key.

Or you can use alternative solution to get array of GET params

$get_parameters = array();
if (isset($_SERVER['QUERY_STRING'])) {
  $pairs = explode('&', $_SERVER['QUERY_STRING']);
  foreach($pairs as $pair) {
    $part = explode('=', $pair);
    $get_parameters[$part[0]] = sizeof($part)>1 ? urldecode($part[1]) : "";
    }
  }

$get_parameters is same as url decoded $_GET.

In Kotlin, we have two types of variables: var or val. The first one, var, is a mutable reference (read-write) that can be updated after initialization. The var keyword is used to define a variable in Kotlin. It is equivalent to a normal (nonfinal) Java variable. If our variable needs to change at some time, we should declare it using the var keyword. Let's look at an example of a variable declaration:

 fun main(args: Array<String>) {
     var fruit:String = "orange"  // 1
     fruit = "banana"             // 2
 }

len(list1)-1 is definitely the way to go, but if you absolutely need a list that has a function that returns the last index, you could create a class that inherits from list.

class MyList(list):
    def last_index(self):
        return len(self)-1


>>> l=MyList([1, 2, 33, 51])
>>> l.last_index()
3

It's not that different in bash.

workdone=0
while : ; do
  ...
  if [ "$workdone" -ne 0 ]; then
      break
  fi
done

: is the no-op command; its exit status is always 0, so the loop runs until workdone is given a non-zero value.

There are many ways you could set and test the value of workdone in order to exit the loop; the one I show above should work in any POSIX-compatible shell.

Here is simplest way how to change navbar color after window scroll:

Add follow JS to head:

$(function () {
  $(document).scroll(function () {
    var $nav = $(".navbar-fixed-top");
    $nav.toggleClass('scrolled', $(this).scrollTop() > $nav.height());
  });
});

and this CSS code

.navbar-fixed-top.scrolled {
  background-color: #fff !important;
  transition: background-color 200ms linear;
}

Background color of fixed navbar will be change to white when scroll exceeds height of navbar.

See follow JsFiddle

remove leading or trailing characters:

function trimLeadingTrailing(inputStr, toRemove) {
    // use a regex to match toRemove at the start (^)
    // and at the end ($) of inputStr
    const re = new Regex(`/^${toRemove}|{toRemove}$/`);
    return inputStr.replace(re, '');
}

Tomcat can work in 2 modes:

• BIO – blocking I/O (one thread per connection)
• NIO – non-blocking I/O (many more connections than threads)

Tomcat 7 is BIO by default, although consensus seems to be "don't use Bio because Nio is better in every way". You set this using the protocol parameter in the server.xml file.

• BIO will be HTTP/1.1 or org.apache.coyote.http11.Http11Protocol
• NIO will be org.apache.coyote.http11.Http11NioProtocol

If you're using BIO then I believe they should be more or less the same.

If you're using NIO then actually "maxConnections=1000" and "maxThreads=10" might even be reasonable. The defaults are maxConnections=10,000 and maxThreads=200. With NIO, each thread can serve any number of connections, switching back and forth but retaining the connection so you don't need to do all the usual handshaking which is especially time-consuming with HTTPS but even an issue with HTTP. You can adjust the "keepAlive" parameter to keep connections around for longer and this should speed everything up.

 select index_name, column_name
 from user_ind_columns
 where table_name = 'NAME';

OR use this:

select TABLE_NAME, OWNER 
from SYS.ALL_TABLES 
order by OWNER, TABLE_NAME 

And for Indexes:

select INDEX_NAME, TABLE_NAME, TABLE_OWNER 
from SYS.ALL_INDEXES 
order by TABLE_OWNER, TABLE_NAME, INDEX_NAME

Note that if you rely on sleep taking exactly 50 ms, you won't get that. It will just be about it.

As mentioned by Zeeshan, the logrotate options size, minsize, maxsize are triggers for rotation.

To better explain it. You can run logrotate as often as you like, but unless a threshold is reached such as the filesize being reached or the appropriate time passed, the logs will not be rotated.

The size options do not ensure that your rotated logs are also of the specified size. To get them to be close to the specified size you need to call the logrotate program sufficiently often. This is critical.

For log files that build up very quickly (e.g. in the hundreds of MB a day), unless you want them to be very large you will need to ensure logrotate is called often! this is critical.

Therefore to stop your disk filling up with multi-gigabyte log files you need to ensure logrotate is called often enough, otherwise the log rotation will not work as well as you want.

on Ubuntu, you can easily switch to hourly rotation by moving the script /etc/cron.daily/logrotate to /etc/cron.hourly/logrotate

Or add

*/5 * * * * /etc/cron.daily/logrotate 

To your /etc/crontab file. To run it every 5 minutes.

The size option ignores the daily, weekly, monthly time options. But minsize & maxsize take it into account.

The man page is a little confusing there. Here's my explanation.

minsize rotates only when the file has reached an appropriate size and the set time period has passed. e.g. minsize 50MB + daily If file reaches 50MB before daily time ticked over, it'll keep growing until the next day.

maxsize will rotate when the log reaches a set size or the appropriate time has passed. e.g. maxsize 50MB + daily. If file is 50MB and we're not at the next day yet, the log will be rotated. If the file is only 20MB and we roll over to the next day then the file will be rotated.

size will rotate when the log > size. Regardless of whether hourly/daily/weekly/monthly is specified. So if you have size 100M - it means when your log file is > 100M the log will be rotated if logrotate is run when this condition is true. Once it's rotated, the main log will be 0, and a subsequent run will do nothing.

So in the op's case. Specficially 50MB max I'd use something like the following:

/var/log/logpath/*.log {
    maxsize 50M
    hourly
    missingok
    rotate 8
    compress
    notifempty
    nocreate
}

Which means he'd create 8hrs of logs max. And there would be 8 of them at no more than 50MB each. Since he's saying that he's getting multi gigabytes each day and assuming they build up at a fairly constant rate, and maxsize is used he'll end up with around close to the max reached for each file. So they will be likely close to 50MB each. Given the volume they build, he would need to ensure that logrotate is run often enough to meet the target size.

Since I've put hourly there, we'd need logrotate to be run a minimum of every hour. But since they build up to say 2 gigabytes per day and we want 50MB... assuming a constant rate that's 83MB per hour. So you can imagine if we run logrotate every hour, despite setting maxsize to 50 we'll end up with 83MB log's in that case. So in this instance set the running to every 30 minutes or less should be sufficient.

Ensure logrotate is run every 30 mins.

*/30 * * * * /etc/cron.daily/logrotate 

I just fought with this very thing and this update didn't work.

This eventually did in Swift:

let myUrlStr : String = myUrl!.relativePath!

(For the record and before the thread disappears on the msdn forums) You can't disable the warning (at least under VS2010) because it is on the list of the warnings that can't be disabled (so /wd4099 will not work), but what you can do instead is patch link.exe (usually C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\link.exe) to remove it from said list . Sounds like a jackhammer, i know. It works though.

For instance, if you want to remove the warning for 4099, open link.exe with an hex editor, goto line 15A0 which reads 03 10 (little endian for 4099) and replace it with FF 00 (which does not exist.)

If you are using Linux, you can configure a cron job using tmpwatch.

Most Linux systems have a tmpwatch cron job that cleans up the /tmp directory. You can add another that monitors your logging directory and deletes files over 7 days old.

If you are using a different system, there are probably equivalent utilities.

To send query params

import { Router } from '@angular/router';
this.router.navigate([ '/your-route' ], { queryParams: { key: va1, keyN: valN } });

To receive query params

import { ActivatedRoute } from '@angular/router';
this.activatedRoute.queryParams.subscribe(params => {
    let value_1 = params['key'];
    let value_N = params['keyN'];
});

Official source

1. Yes, on most CPUs, SHA-256 is two to three times slower than MD5, though not primarily because of its longer hash. See other answers here and the answers to this Stack Overflow questions.
2. Here's a backup scenario where MD5 would not be appropriate:
   • Your backup program hashes each file being backed up. It then stores each file's data by its hash, so if you're backing up the same file twice you only end up with one copy of it.
   • An attacker can cause the system to backup files they control.
   • The attacker knows the MD5 hash of a file they want to remove from the backup.
   • The attacker can then use the known weaknesses of MD5 to craft a new file that has the same hash as the file to remove. When that file is backed up, it will replace the file to remove, and that file's backed up data will be lost.
   • This backup system could be strengthened a bit (and made more efficient) by not replacing files whose hash it has previously encountered, but then an attacker could prevent a target file with a known hash from being backed up by preemptively backing up a specially constructed bogus file with the same hash.
   • Obviously most systems, backup and otherwise, do not satisfy the conditions necessary for this attack to be practical, but I just wanted to give an example of a situation where SHA-256 would be preferable to MD5. Whether this would be the case for the system you're creating depends on more than just the characteristics of MD5 and SHA-256.
3. Yes, cryptographic hashes like the ones generated by MD5 and SHA-256 are a type of checksum.

Happy hashing!

I've discovered a better alternative solution then the other complex solutions.

brew install https://raw.github.com/Homebrew/homebrew-versions/master/postgresql8.rb

This will download and install PostgreSQL 8.4.8

I found this solution by starting to follow the steps of searching the repo and a comment in the repo .

After a little research found that someone has a collection of rare formulars to brew up with.

If your looking for MySQL 5.1.x, give this a try.

brew install https://raw.github.com/Homebrew/homebrew-versions/master/mysql51.rb

My favourite solution is the way Zend Framework 2 uses. It also considers the $_SERVER properties HTTP_X_FORWARDED_FOR, HTTP_CLIENT_IP, REMOTE_ADDR but it declares a class for it to set some trusted proxies and it returns one IP address not an array. I think this is the solution that comes closest to it:

class RemoteAddress
{
    /**
     * Whether to use proxy addresses or not.
     *
     * As default this setting is disabled - IP address is mostly needed to increase
     * security. HTTP_* are not reliable since can easily be spoofed. It can be enabled
     * just for more flexibility, but if user uses proxy to connect to trusted services
     * it's his/her own risk, only reliable field for IP address is $_SERVER['REMOTE_ADDR'].
     *
     * @var bool
     */
    protected $useProxy = false;

    /**
     * List of trusted proxy IP addresses
     *
     * @var array
     */
    protected $trustedProxies = array();

    /**
     * HTTP header to introspect for proxies
     *
     * @var string
     */
    protected $proxyHeader = 'HTTP_X_FORWARDED_FOR';

    // [...]

    /**
     * Returns client IP address.
     *
     * @return string IP address.
     */
    public function getIpAddress()
    {
        $ip = $this->getIpAddressFromProxy();
        if ($ip) {
            return $ip;
        }

        // direct IP address
        if (isset($_SERVER['REMOTE_ADDR'])) {
            return $_SERVER['REMOTE_ADDR'];
        }

        return '';
    }

    /**
     * Attempt to get the IP address for a proxied client
     *
     * @see http://tools.ietf.org/html/draft-ietf-appsawg-http-forwarded-10#section-5.2
     * @return false|string
     */
    protected function getIpAddressFromProxy()
    {
        if (!$this->useProxy
            || (isset($_SERVER['REMOTE_ADDR']) && !in_array($_SERVER['REMOTE_ADDR'], $this->trustedProxies))
        ) {
            return false;
        }

        $header = $this->proxyHeader;
        if (!isset($_SERVER[$header]) || empty($_SERVER[$header])) {
            return false;
        }

        // Extract IPs
        $ips = explode(',', $_SERVER[$header]);
        // trim, so we can compare against trusted proxies properly
        $ips = array_map('trim', $ips);
        // remove trusted proxy IPs
        $ips = array_diff($ips, $this->trustedProxies);

        // Any left?
        if (empty($ips)) {
            return false;
        }

        // Since we've removed any known, trusted proxy servers, the right-most
        // address represents the first IP we do not know about -- i.e., we do
        // not know if it is a proxy server, or a client. As such, we treat it
        // as the originating IP.
        // @see http://en.wikipedia.org/wiki/X-Forwarded-For
        $ip = array_pop($ips);
        return $ip;
    }

    // [...]
}

See the full code here: https://raw.githubusercontent.com/zendframework/zend-http/master/src/PhpEnvironment/RemoteAddress.php

You can use the jQuery ajax method link if you want to pass data from client to server. In this case you can use $_SERVER['HTTP_USER_AGENT'] variable to found browser user agent.

Store data in SharedPreference

SharedPreferences mprefs = getSharedPreferences(AppConstant.PREFS_NAME, MODE_PRIVATE)
mprefs.edit().putString(AppConstant.USER_ID, resUserID).apply();

curl -H "Jenkins-Crumb: <your_crumb_data>" -u "<username>:<password>" "http://<your_jenkins_url>?buildWithParameters?token=<your_remote_api_name>?<parameterA>=<val_parameter_A>&<parameterB>=<val_parameterB>"

You can change following parameters as you want:

<your_crumb_data>
<username>
<password>
<your_jenkins_url>
<your_remote_api_name>
<parameterA>
<parameterB>
<val_parameter_A>
<val_parameter_B>

Note: Placing double quotes may be critical. Pay attention, please.

In the case of Flutter you have to open the android part of the project only File->open->select the android folder of that project wait few minutes to complete the gradle sync after that on the right side click on the gradle->android->Tasks->android->signin Report

Add these both permission of read and write, to solve this issue

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

Add this below line in Application tag

android:requestLegacyExternalStorage="true"

Exec time for the 3 answers :

Remove the first letter by replacing the case

$str = "hello";
$str[0] = "";
// $str[0] = false;
// $str[0] = null;
// replaced by ?, but ok for echo

Exec time for 1.000.000 tests : 0.39602184295654 sec

Remove the first letter with substr()

$str = "hello";
$str = substr($str, 1);

Exec time for 1.000.000 tests : 5.153294801712 sec

Remove the first letter with ltrim()

$str = "hello";
$str= ltrim ($str,'h');

Exec time for 1.000.000 tests : 5.2393000125885 sec

Remove the first letter with preg_replace()

$str = "hello";
$str = preg_replace('/^./', '', $str);

Exec time for 1.000.000 tests : 6.8543920516968 sec

You can use the ?? test operator:

This checks if the attribute of the object is not null:

<#if object.attribute??></#if>

This checks if object or attribute is not null:

<#if (object.attribute)??></#if>

Source: FreeMarker Manual

It's worth mentioning that you may have been able to read this in directly e.g. if you were using read_csv using parse_dates=[['Date', 'Time']].

Assuming these are just strings you could simply add them together (with a space), allowing you to apply to_datetime:

In [11]: df['Date'] + ' ' + df['Time']
Out[11]:
0    01-06-2013 23:00:00
1    02-06-2013 01:00:00
2    02-06-2013 21:00:00
3    02-06-2013 22:00:00
4    02-06-2013 23:00:00
5    03-06-2013 01:00:00
6    03-06-2013 21:00:00
7    03-06-2013 22:00:00
8    03-06-2013 23:00:00
9    04-06-2013 01:00:00
dtype: object

In [12]: pd.to_datetime(df['Date'] + ' ' + df['Time'])
Out[12]:
0   2013-01-06 23:00:00
1   2013-02-06 01:00:00
2   2013-02-06 21:00:00
3   2013-02-06 22:00:00
4   2013-02-06 23:00:00
5   2013-03-06 01:00:00
6   2013-03-06 21:00:00
7   2013-03-06 22:00:00
8   2013-03-06 23:00:00
9   2013-04-06 01:00:00
dtype: datetime64[ns]

Note: surprisingly (for me), this works fine with NaNs being converted to NaT, but it is worth worrying that the conversion (perhaps using the raise argument).

Works perfect for me:

(SELECT content FROM tblopportunitycomments WHERE opportunityid = 1 ORDER BY dateadded DESC LIMIT 1);

This modified solution from above does not require explicit knowledge of the current database. It is then more flexible.

SELECT count(*) FROM information_schema.TABLES WHERE TABLE_NAME = 'yourtable' 
AND TABLE_SCHEMA in (SELECT DATABASE());

If you are using bootstrap (I am using version 4.0), feel free to try the following code.

<input data-toggle="tooltip" data-placement="top" title="This is the text of the tooltip" value="44"/>

data-placement can be top, right, bottom or left

What about the SystemParameters class in PresentationFramework? It has a WorkArea property that seems to be what you are looking for.

But, why won't setting the Window.WindowStartupLocation work? CenterScreen is one of the enum values. Do you have to tweak the centering?

Old question but anyway !

Same thing happen to me this morning, everything was working fine for weeks before...... yes guess what ... I change my windows PC user account password yesterday night !!!!! (how stupid was I !!!)

So easy fix : IIS -> authentication -> Anonymous authentication -> edit and set the user and new PASSWORD !!!!!

All POSIX operating systems have 3 streams: stdin, stdout, and stderr. stdin is the input, which can accept the stdout or stderr. stdout is the primary output, which is redirected with >, >>, or |. stderr is the error output, which is handled separately so that any exceptions do not get passed to a command or written to a file that it might break; normally, this is sent to a log of some kind, or dumped directly, even when the stdout is redirected. To redirect both to the same place, use:

command &> /some/file

EDIT: thanks to Zack for pointing out that the above solution is not portable--use instead:

*command* > file 2>&1 

If you want to silence the error, do:

*command* 2> /dev/null

You need to escape it: on many databases this is done by preceding it with backslash, \%.

So abc becomes abc\%.

Your programming language will have a database-specific function to do this for you. For example, PHP has mysql_escape_string() for the MySQL database.

For those who don't want to use HTML agility pack and want to get HtmlDocument from string using native .net code only here is a good article on how to convert string to HtmlDocument

Here is the code block to use

public System.Windows.Forms.HtmlDocument GetHtmlDocument(string html)
        {
            WebBrowser browser = new WebBrowser();
            browser.ScriptErrorsSuppressed = true;
            browser.DocumentText = html;
            browser.Document.OpenNew(true);
            browser.Document.Write(html);
            browser.Refresh();
            return browser.Document;
        }

If you are using python3 on windows then you might do this as well

pip3 install tensorflow==1.4

you may select any version from "(from versions: 1.2.0rc2, 1.2.0, 1.2.1, 1.3.0rc0, 1.3.0rc1, 1.3.0rc2, 1.3.0, 1.4.0rc0, 1.4.0rc1, 1.4.0, 1.5.0rc0, 1.5.0rc1, 1.5.0, 1.5.1, 1.6.0rc0, 1.6.0rc1, 1.6.0, 1.7.0rc0, 1.7.0rc1, 1.7.0)"

I did this when I wanted to downgrade from 1.7 to 1.4

I would do it something along these lines:

class Foo{
...
};

int main(){
  Foo* arrayOfFoo[100]; //[1]

  arrayOfFoo[0] = new Foo; //[2]
}

[1] This makes an array of 100 pointers to Foo-objects. But no Foo-objects are actually created.

[2] This is one possible way to instantiate an object, and at the same time save a pointer to this object in the first position of your array.

You could use simple regex:

var result = fileAsString.replace(/string to be replaced/g, 'replacement');

So...

var fs = require('fs')
fs.readFile(someFile, 'utf8', function (err,data) {
  if (err) {
    return console.log(err);
  }
  var result = data.replace(/string to be replaced/g, 'replacement');

  fs.writeFile(someFile, result, 'utf8', function (err) {
     if (err) return console.log(err);
  });
});

public class **Your java Class** extends ActionBarActivity implements  View.OnClickListener{
date = (EditText) findViewById(R.id.date);
date.setInputType(InputType.TYPE_NULL);
        date.requestFocus();
        date.setOnClickListener(this);
        dateFormatter = new SimpleDateFormat("yyyy-MM-dd", Locale.US);

        setDateTimeField();

private void setDateTimeField() {
        Calendar newCalendar = Calendar.getInstance();
        fromDatePickerDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {

            public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                Calendar newDate = Calendar.getInstance();
                newDate.set(year, monthOfYear, dayOfMonth);
                date.setText(dateFormatter.format(newDate.getTime()));
            }

        }, newCalendar.get(Calendar.YEAR), newCalendar.get(Calendar.MONTH), newCalendar.get(Calendar.DAY_OF_MONTH));

    }
@Override
    public void onClick(View v) {
        fromDatePickerDialog.show();
    }
}

public class Shift {
 public static void main(String[] args) {
  Byte b = Byte.parseByte("00101011",2);
  System.out.println(b);
  byte val = b.byteValue();
  Byte shifted = new Byte((byte) (val >> 2));
  System.out.println(shifted);

  // often overloked  are the methods of Integer

  int i = Integer.parseInt("00101011",2);
  System.out.println( Integer.toBinaryString(i));
  i >>= 2;
  System.out.println( Integer.toBinaryString(i));
 }
}

Output:

43
10
101011
1010

My solution to this was to write the script block dynamically with [scriptblock]:Create:

# Or build a complex local script with MARKERS here, and do substitutions
# I was sending install scripts to the remote along with MSI packages
# ...for things like Backup and AV protection etc.

$p1 = "good stuff"; $p2 = "better stuff"; $p3 = "best stuff"; $etc = "!"
$script = [scriptblock]::Create("MyScriptOnRemoteServer.ps1 $p1 $p2 $etc")
#strings get interpolated/expanded while a direct scriptblock does not

# the $parms are now expanded in the script block itself
# ...so just call it:
$result = invoke-command $computer -script $script

Passing arguments was very frustrating, trying various methods, e.g.,
-arguments, $using:p1, etc. and this just worked as desired with no problems.

Since I control the contents and variable expansion of the string which creates the [scriptblock] (or script file) this way, there is no real issue with the "invoke-command" incantation.

(It shouldn't be that hard. :) )

So this is based out of using lineJoin="round" and with the proper proportions, mathematics and logic I have been able to make this function, this is not perfect but hope it helps. If you want to make each corner have a different radius take a look at: https://p5js.org/reference/#/p5/rect

Here ya go:

CanvasRenderingContext2D.prototype.roundRect = function (x,y,width,height,radius) {
    radius = Math.min(Math.max(width-1,1),Math.max(height-1,1),radius);
    var rectX = x;
    var rectY = y;
    var rectWidth = width;
    var rectHeight = height;
    var cornerRadius = radius;

    this.lineJoin = "round";
    this.lineWidth = cornerRadius;
    this.strokeRect(rectX+(cornerRadius/2), rectY+(cornerRadius/2), rectWidth-cornerRadius, rectHeight-cornerRadius);
    this.fillRect(rectX+(cornerRadius/2), rectY+(cornerRadius/2), rectWidth-cornerRadius, rectHeight-cornerRadius);
    this.stroke();
    this.fill();
}

CanvasRenderingContext2D.prototype.roundRect = function (x,y,width,height,radius) {_x000D_
    radius = Math.min(Math.max(width-1,1),Math.max(height-1,1),radius);_x000D_
    var rectX = x;_x000D_
    var rectY = y;_x000D_
    var rectWidth = width;_x000D_
    var rectHeight = height;_x000D_
    var cornerRadius = radius;_x000D_
_x000D_
    this.lineJoin = "round";_x000D_
    this.lineWidth = cornerRadius;_x000D_
    this.strokeRect(rectX+(cornerRadius/2), rectY+(cornerRadius/2), rectWidth-cornerRadius, rectHeight-cornerRadius);_x000D_
    this.fillRect(rectX+(cornerRadius/2), rectY+(cornerRadius/2), rectWidth-cornerRadius, rectHeight-cornerRadius);_x000D_
    this.stroke();_x000D_
    this.fill();_x000D_
}_x000D_
    var canvas = document.getElementById("myCanvas");_x000D_
    var ctx = canvas.getContext('2d');_x000D_
function yop() {_x000D_
  ctx.clearRect(0,0,1000,1000)_x000D_
  ctx.fillStyle = "#ff0000";_x000D_
  ctx.strokeStyle = "#ff0000";  ctx.roundRect(Number(document.getElementById("myRange1").value),Number(document.getElementById("myRange2").value),Number(document.getElementById("myRange3").value),Number(document.getElementById("myRange4").value),Number(document.getElementById("myRange5").value));_x000D_
requestAnimationFrame(yop);_x000D_
}_x000D_
requestAnimationFrame(yop);

<input type="range" min="0" max="1000" value="10" class="slider" id="myRange1"><input type="range" min="0" max="1000" value="10" class="slider" id="myRange2"><input type="range" min="0" max="1000" value="200" class="slider" id="myRange3"><input type="range" min="0" max="1000" value="100" class="slider" id="myRange4"><input type="range" min="1" max="1000" value="50" class="slider" id="myRange5">_x000D_
<canvas id="myCanvas" width="1000" height="1000">_x000D_
</canvas>

Maven

The Answer by Bhesh Gurung is correct… unless your NetBeans project is Maven based.

Dependency

Under Maven, you add a "dependency". A dependency is a description of a library (its name & version number) you want to use from your code.

Or a dependency could be a description of a library which another library needs ("depends on"). Maven automatically handles this chain, libraries that need other libraries that then need other libraries and so on. For the mathematical-minded, perhaps the phrase "Maven resolves the transitive dependencies" makes sense.

Repository

Maven gets this related-ness information, and the libraries themselves from a Maven repository. A repository is basically an online database and collection of download files (the dependency library).

Easy to Use

Adding a dependency to a Maven-based project is really quite easy. That is the whole point to Maven, to make managing dependent libraries easy and to make building them into your project easy. To get started with adding a dependency, see this Question, Adding dependencies in Maven Netbeans and my Answer with screenshot.

Use

s.replace(/\d/g, "X")

which will replace all occurrences. The g means global match and thus will not stop matching after the first occurrence.

Or to stay with your RegExp constructor:

s.replace(new RegExp("\\d", "g"), "X")

It's a bug or whatever but the removePersistentDomainForName is not working while clearing all the NSUserDefaults values.

So, better option is that to reset the PersistentDomain and that you can do via following way:

NSUserDefaults.standardUserDefaults().setPersistentDomain(["":""], forName: NSBundle.mainBundle().bundleIdentifier!)

To get it done only with XAML you need to add Validation Rules for individual properties. But i would recommend you to go with code behind approach. In your code, define your specifications in properties setters and throw exceptions when ever it doesn't compliance to your specifications. And use error template to display your errors to user in UI. Your XAML will look like this

<Window x:Class="WpfApplication1.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="350" Width="525">
<Window.Resources>
    <Style x:Key="CustomTextBoxTextStyle" TargetType="TextBox">
        <Setter Property="Foreground" Value="Green" />
        <Setter Property="MaxLength" Value="40" />
        <Setter Property="Width" Value="392" />
        <Style.Triggers>
            <Trigger Property="Validation.HasError" Value="True">
                <Trigger.Setters>
                    <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self},Path=(Validation.Errors)[0].ErrorContent}"/>
                    <Setter Property="Background" Value="Red"/>
                </Trigger.Setters>
            </Trigger>
        </Style.Triggers>
    </Style>
</Window.Resources>
<Grid>
    <TextBox Name="tb2" Height="30" Width="400"
             Text="{Binding Name, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, ValidatesOnExceptions=True}" 
             Style="{StaticResource CustomTextBoxTextStyle}"/>
</Grid>

Code Behind:

public partial class MainWindow : Window
{
    private ExampleViewModel m_ViewModel;
    public MainWindow()
    {
        InitializeComponent();
        m_ViewModel = new ExampleViewModel();
        DataContext = m_ViewModel;
    }
}


public class ExampleViewModel : INotifyPropertyChanged
{
    private string m_Name = "Type Here";
    public ExampleViewModel()
    {

    }

    public string Name
    {
        get
        {
            return m_Name;
        }
        set
        {
            if (String.IsNullOrEmpty(value))
            {
                throw new Exception("Name can not be empty.");
            }
            if (value.Length > 12)
            {
                throw new Exception("name can not be longer than 12 charectors");
            }
            if (m_Name != value)
            {
                m_Name = value;
                OnPropertyChanged("Name");
            }
        }
    }


    public event PropertyChangedEventHandler PropertyChanged;
    protected void OnPropertyChanged(string propertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }

    }
}

I had this problem.

My issue was that the aspx, aspx.vb and aspx.designer.vb files were imported wrong (Perhaps they were imported one by one to the project).

The breakpoint were in the aspx.vb, but was unreachable and had the warning of this question.

The solution was to delete the three files and import them again. Now I can reach the breakpoint.

"fb://page/ does not work with newer versions of the FB app. You should use fb://facewebmodal/f?href= for newer versions.

This is a full fledged working code currently live in one of my apps:

public static String FACEBOOK_URL = "https://www.facebook.com/YourPageName";
public static String FACEBOOK_PAGE_ID = "YourPageName";

//method to get the right URL to use in the intent
public String getFacebookPageURL(Context context) {
        PackageManager packageManager = context.getPackageManager();
        try {
            int versionCode = packageManager.getPackageInfo("com.facebook.katana", 0).versionCode;
            if (versionCode >= 3002850) { //newer versions of fb app
                return "fb://facewebmodal/f?href=" + FACEBOOK_URL;
            } else { //older versions of fb app
                return "fb://page/" + FACEBOOK_PAGE_ID;
            }
        } catch (PackageManager.NameNotFoundException e) {
            return FACEBOOK_URL; //normal web url
        }
    }

This method will return the correct url for app if installed or web url if app is not installed.

Then start an intent as follows:

Intent facebookIntent = new Intent(Intent.ACTION_VIEW);
String facebookUrl = getFacebookPageURL(this);
facebookIntent.setData(Uri.parse(facebookUrl));
startActivity(facebookIntent);

That's all you need.

ElementTree is not too smart about namespaces. You need to give the .find(), findall() and iterfind() methods an explicit namespace dictionary. This is not documented very well:

namespaces = {'owl': 'http://www.w3.org/2002/07/owl#'} # add more as needed

root.findall('owl:Class', namespaces)

Prefixes are only looked up in the namespaces parameter you pass in. This means you can use any namespace prefix you like; the API splits off the owl: part, looks up the corresponding namespace URL in the namespaces dictionary, then changes the search to look for the XPath expression {http://www.w3.org/2002/07/owl}Class instead. You can use the same syntax yourself too of course:

root.findall('{http://www.w3.org/2002/07/owl#}Class')

If you can switch to the lxml library things are better; that library supports the same ElementTree API, but collects namespaces for you in a .nsmap attribute on elements.

I second Dave's idea. I'm not always fond of pivot tables, but in this case they are pretty straightforward to use.

Here are my results:

It was so simple to create it that I have even recorded a macro in case you need to do this with VBA:

Sub Macro2()
'
' Macro2 Macro
'

'
    Range("Table1[[#All],[DATA]]").Select
    ActiveWorkbook.PivotCaches.Create(SourceType:=xlDatabase, SourceData:= _
        "Table1", Version:=xlPivotTableVersion14).CreatePivotTable TableDestination _
        :="Sheet3!R3C7", TableName:="PivotTable4", DefaultVersion:= _
        xlPivotTableVersion14
    Sheets("Sheet3").Select
    Cells(3, 7).Select
    With ActiveSheet.PivotTables("PivotTable4").PivotFields("DATA")
        .Orientation = xlRowField
        .Position = 1
    End With
    ActiveSheet.PivotTables("PivotTable4").AddDataField ActiveSheet.PivotTables( _
        "PivotTable4").PivotFields("DATA"), "Count of DATA", xlCount
End Sub

If you're using Visual Studio you could also do "#pragma once" at the top of the headerfile to achieve the same thing as the "#ifndef ..."-wrapping. Some other compilers probably support it as well .. .. However, don't do this :D Stick with the #ifndef-wrapping to achieve cross-compiler compatibility. I just wanted to let you know that you could also do #pragma once, since you'll probably meet this statement quite a bit when reading other peoples code.

Good luck with it

Rather than using direct tags, you can edit the css attribute for the color so that any tables you make will have the same color header text.

thead {
    color: #FFFFFF;
}

Make sure you have run the MongoDB's Service before you want to connect the console.

run and start the server:

$ sudo mongod

then:

$ mongo
...
>

Quite simple actually:

mysql_query("
SELECT *
FROM `table`
WHERE `column` LIKE '%{$needle}%'
");

The % is a wildcard for any characters set (none, one or many). Do note that this can get slow on very large datasets so if your database grows you'll need to use fulltext indices.

try using this one

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
Invoke-WebRequest -Uri https://apod.nasa.gov/apod/

If it isn't I could see things heading that way.

I'm working on redoing the website for the company I work for and the designer they hired used a 960px width layout. There is also a 960px grid system that seems to be getting quite popular (http://960.gs/).

I've been out of web stuff for a few years but from what I've read catching up on things it seems 960/980 is about right. For mobile ~320px sticks in my mind, by which 960 is divisible. 960 is also evenly divisible by 2, 3, 4, 5, and 6.

I wouldn't use just FILENAME_H but

#ifndef FILENAME_H_AF06570D_B36E_4B82_8F97_C456AF4A38FD
#define FILENAME_H_AF06570D_B36E_4B82_8F97_C456AF4A38FD

//code stuff
#endif // FILENAME_H_AF06570D_B36E_4B82_8F97_C456AF4A38FD

I have always used a postfix guid. I came across a very poor code base some years ago that had different header files with the same file name and include guard. The files in question had defined a class with the same name. If only namespaces were used. Some projects compiled some didn't. Using unique guards was a part of the solution in differentiating headers and their contents.

On Windows with Visual Studio use guidgen.exe, on Linux uuidgen -t.

Using Python will be one easy way to achieve what you want.

I found one using Google.

"convert from json to csv using python" is an example.

If it's possible, you could wrap the word(s) you want to replace in a span tag, like so:

<div class="text_div">
    This div <span>contains</span> some text.
</div>

You can then easily change its contents with jQuery:

$('.text_div > span').text('hello everyone');

If you can't wrap it in a span tag, you could use regular expressions.

The <select> element does support the required attribute, as per the spec:

• http://dev.w3.org/html5/spec-author-view/the-select-element.html#the-select-element

Which browser doesn’t honour this?

(Of course, you have to validate on the server anyway, as you can’t guarantee that users will have JavaScript enabled.)

Chrome did change their menus since this question was asked. This solution was tested with Chrome 47.0.2526.73 to 72.0.3626.109.

If you are using Chrome right now, you can check your version with : chrome://version

1. Goto: chrome://settings

2. Scroll down to the bottom of the page and click on "Advanced" to show more settings.

OLDER VERSIONS:

Scroll down to the bottom of the page and click on "Show advanced settings..." to show more settings.

3. In the "System" section, click on "Open proxy settings".

OLDER VERSIONS:

In the "Network" section, click on "Change proxy settings...".

4. Click on the "Security" tab, then select "Local intranet" icon and click on "Sites" button.

5. Click on "Advanced" button.

7. Insert your intranet local address and click on the "Add" button.

8. Close all windows.

That's it.

for a 2-D tensor, you can get the number of rows and columns as int32 using the following code:

rows, columns = map(lambda i: i.value, tensor.get_shape())

jdk.tools:jdk.tools (or com.sun:tools, or whatever you name it) is a JAR file that is distributed with JDK. Usually you add it to maven projects like this:

<dependency>
    <groupId>jdk.tools</groupId>
    <artifactId>jdk.tools</artifactId>
    <scope>system</scope>
    <systemPath>${java.home}/../lib/tools.jar</systemPath>
</dependency>

See, the Maven FAQ for adding dependencies to tools.jar

Or, you can manually install tools.jar in the local repository using:

mvn install:install-file -DgroupId=jdk.tools -DartifactId=jdk.tools -Dpackaging=jar -Dversion=1.6 -Dfile=tools.jar -DgeneratePom=true

and then reference it like Cloudera did, using:

<dependency>
    <groupId>jdk.tools</groupId>
    <artifactId>jdk.tools</artifactId>
    <version>1.6</version>
</dependency>

Let's discuss why an "object not found" error can be thrown in R in addition to explaining what it means. What it means (to many) is obvious: the variable in question, at least according to the R interpreter, has not yet been defined, but if you see your object in your code there can be multiple reasons for why this is happening:

1. check syntax of your declarations. If you mis-typed even one letter or used upper case instead of lower case in a later calling statement, then it won't match your original declaration and this error will occur.

2. Are you getting this error in a notebook or markdown document? You may simply need to re-run an earlier cell that has your declarations before running the current cell where you are calling the variable.

3. Are you trying to knit your R document and the variable works find when you run the cells but not when you knit the cells? If so - then you want to examine the snippet I am providing below for a possible side effect that triggers this error:

   {r sourceDataProb1, echo=F, eval=F} # some code here

The above snippet is from the beginning of an R markdown cell. If eval and echo are both set to False this can trigger an error when you try to knit the document. To clarify. I had a use case where I had left these flags as False because I thought i did not want my code echoed or its results to show in the markdown HTML I was generating. But since the variable was then used in later cells, this caused an error during knitting. Simple trial and error with T/F TRUE/FALSE flags can establish if this is the source of your error when it occurs in knitting an R markdown document from RStudio.

Lastly: did you remove the variable or clear it from memory after declaring it?

• rm() removes the variable
• hitting the broom icon in the evironment window of RStudio clearls everything in the current working environment
• ls() can help you see what is active right now to look for a missing declaration.
• exists("x") - as mentioned by another poster, can help you test a specific value in an environment with a very lengthy list of active variables

Epoch reference date

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

Many epochs in use

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

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

This choice of epoch is arbitrary.

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

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

Many granularities

Different systems use different granularity in counting time.

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

ISO 8601

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

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

These include:

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

You are looking for dynamic_cast<B*>(pointer)

On platforms where they both have the same size the answer is nothing. They both represent signed 4 byte values.

However you cannot depend on this being true. The size of long and int are not definitively defined by the standard. It's possible for compilers to give the types different sizes and hence break this assumption.

Use @Named to differentiate between different objects of the same type bound in the same scope.

@Named("maxWaitTime")
public long maxWaitTimeMs;

@Named("minWaitTime")
public long minWaitTimeMs;

Without the @Named qualifier, the injector would not know which long to bind to which variable.

• If you want to create annotations that act like @Named, use the @Qualifier annotation when creating them.

• If you look at @Named, it is itself annotated with @Qualifier.

You can use the maven.javadoc.skip property to skip execution of the plugin, going by the Mojo's javadoc. You can specify the value as a Maven property:

<properties>
    <maven.javadoc.skip>true</maven.javadoc.skip>
</properties>

or as a command-line argument: -Dmaven.javadoc.skip=true, to skip generation of the Javadocs.

You're trying to assign the return value of clients.get(clients.size()) to the string hey, but the object returned is a ClientThread, not a string. As Andre mentioned, you need to use the proper index as well.

As far as your second error is concerned, there is no static method remove() on the type ClientThread. Really, you likely wanted the remove method of your List instance, clients.

You can remove the last item from the list, if there is one, as follows. Since remove also returns the object that was removed, you can capture the return and use it to print out the name:

int size = clients.size();

if (size > 0) {
    ClientThread client = clients.remove(size - 1);

    System.out.println(client + " has logged out.");
    System.out.println("CONNECTED PLAYERS: " + clients.size());
}

Your regex should be something like

[0-9\-\(\)\s]+.

It matches numbers, dashes, parentheses and space.

If you need something more strict, matching just your example, try this:

([0-9]{10})|(\([0-9]{3}\)\s+[0-9]{3}\-[0-9]{4})

Is there an universal way to find the location of an external SD card?

By universal way, if you mean official way; yes there is one.

In API level 19 i.e. in Android version 4.4 Kitkat, they have added File[] getExternalFilesDirs (String type) in Context Class that allows apps to store data/files in micro SD cards.

Android 4.4 is the first release of the platform that has actually allowed apps to use SD cards for storage. Any access to SD cards before API level 19 was through private, unsupported APIs.

getExternalFilesDirs(String type) returns absolute paths to application-specific directories on all shared/external storage devices. It means, it will return paths to both internal and external memory. Generally, second returned path would be the storage path for microSD card (if any).

But note that,

Shared storage may not always be available, since removable media can be ejected by the user. Media state can be checked using getExternalStorageState(File).

There is no security enforced with these files. For example, any application holding WRITE_EXTERNAL_STORAGE can write to these files.

The Internal and External Storage terminology according to Google/official Android docs is quite different from what we think.

@AlexDuggleby: you don't need to copy the worksheets, you can save them directly. e.g.:

Public Sub SaveWorksheetsAsCsv()
Dim WS As Excel.Worksheet
Dim SaveToDirectory As String

    SaveToDirectory = "C:\"

    For Each WS In ThisWorkbook.Worksheets
        WS.SaveAs SaveToDirectory & WS.Name, xlCSV
    Next

End Sub

Only potential problem is that that leaves your workbook saved as the last csv file. If you need to keep the original workbook you will need to SaveAs it.

For the exact match use

    $("#HowYouKnow option").filter(function(index) { return $(this).text() === "GOOGLE"; }).attr('selected', 'selected');

contains is going to select the last match which might not be exact.

To make everything writable by the owner, read/execute by the group, and world executable:

chmod -R 0755

To make everything wide open:

chmod -R 0777

This is done by event delegation. Event will get bind on wrapper-class element but will be delegated to selector-class element. This is how it works.

$('.wrapper-class').on("click", '.selector-class', function() {
    // Your code here
});

And HTML

<div class="wrapper-class">
    <button class="selector-class">
      Click Me!
    </button>
</div>    

#Note: wrapper-class element can be anything ex. document, body or your wrapper. Wrapper should already exist. However, selector doesn't necessarily needs to be presented at page loading time. It may come later and the event will bind on selector without fail.

%g can do this:

#include <stdio.h>
int main() {
  float w = 234.567;
  char x[__SIZEOF_FLOAT__];
  sprintf(x, "%g", w);
  puts(x);
}

If you do have to do it this way, here's a few ways of doing it:

Disabling the button with ng-disabled

By far the easiest solution.

<input ng-disabled="!profileForm.$valid" ng-click="updateMyProfile()" ... >

Hiding the button (and showing something else) with ng-if

Might be OK if you're showing/hiding some complex markup.

<div ng-if="profileForm.$valid">
    <input ng-click="updateMyProfile()" ... >
</div>
<div ng-if="!profileForm.$valid">
    Sorry! We need all form fields properly filled out to continue.
</div>

(remember, there's no ng-else ...)

A mix of both

Communicating to the user where the button is (he won't look for it any longer), but explain why it can't be clicked.

<input ng-disabled="!profileForm.$valid" ng-click="updateMyProfile()" ... >
<div ng-if="!profileForm.$valid">
    Sorry! We need all form fields properly filled out to continue.
</div>

I downloaded the jar file manually and replace the one in my local directory and it worked

In Python 2.*, input lets the user enter any expression, e.g. a tuple:

>>> a, b = input('Two numbers please (with a comma in between): ')
Two numbers please (with a comma in between): 23, 45
>>> print a, b
23 45

In Python 3.*, input is like 2.*'s raw_input, returning you a string that's just what the user typed (rather than evaling it as 2.* used to do on input), so you'll have to .split, and/or eval, &c but you'll also be MUCH more in control of the whole thing.

It means somewhere in your chain of calls, you tried to access a Property or call a method on an object that was null.

Given your statement:

img1.ImageUrl = ConfigurationManager
                    .AppSettings
                    .Get("Url")
                    .Replace("###", randomString) 
                + Server.UrlEncode(
                      ((System.Web.UI.MobileControls.Form)Page
                      .FindControl("mobileForm"))
                      .Title);

I'm guessing either the call to AppSettings.Get("Url") is returning null because the value isn't found or the call to Page.FindControl("mobileForm") is returning null because the control isn't found.

You could easily break this out into multiple statements to solve the problem:

var configUrl = ConfigurationManager.AppSettings.Get("Url");
var mobileFormControl = Page.FindControl("mobileForm")
                            as System.Web.UI.MobileControls.Form;

if(configUrl != null && mobileFormControl != null)
{
    img1.ImageUrl = configUrl.Replace("###", randomString) + mobileControl.Title;
}

Something like this could be it?

HTML

 <div class="random">
        SOMETHING
 </div>

CSS

body{

    text-align: center;
}

.random{

    width: 60%;
    margin: auto;
    background-color: yellow;
    display:block;

}

DEMO: http://jsfiddle.net/t5Pp2/2/

Edit: adding display:block doesn't ruin the thing, so...

You can also set the margin to: margin: 0 auto 0 auto; just to be sure it centers only this way not from the top too.

You're very close already, you just need to return the new object that you want. In this case, the same one except with the launches value incremented by 10:

var rockets = [_x000D_
    { country:'Russia', launches:32 },_x000D_
    { country:'US', launches:23 },_x000D_
    { country:'China', launches:16 },_x000D_
    { country:'Europe(ESA)', launches:7 },_x000D_
    { country:'India', launches:4 },_x000D_
    { country:'Japan', launches:3 }_x000D_
];_x000D_
_x000D_
var launchOptimistic = rockets.map(function(elem) {_x000D_
  return {_x000D_
    country: elem.country,_x000D_
    launches: elem.launches+10,_x000D_
  } _x000D_
});_x000D_
_x000D_
console.log(launchOptimistic);

If you have Excel 2010 you can copy your data into another column, than select it and choose Data -> Remove Duplicates. You can then write =COUNTIF($A$1:$A$100,B1) next to it and copy the formula down. This assumes you have your values in range A1:A100 and the de-duplicated values are in column B.

Textarea has no value attribute, its value comes between tags, i.e: <textarea>my text</textarea>, it is not like the input field (<input value="my text" />). That's why attr doesn't work :)

I was interested in setting up graphics for Code Blocks when I ran into a this error: (took me 2 hrs to solve it)

I guess you need to have a bit of luck with this. In my case i just changed the order of contents in Settings menu->Compiler and Debugger->Global compiler settings->Linker settings->Other Linker Options: The working sequence is: -lmingw32 -lSDL -lSDLmain

Look at this one: Convert List/IEnumerable to DataTable/DataView

In my code I changed it into a extension method:

public static DataTable ToDataTable<T>(this List<T> items)
{
    var tb = new DataTable(typeof(T).Name);

    PropertyInfo[] props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);

    foreach(var prop in props)
    {
        tb.Columns.Add(prop.Name, prop.PropertyType);
    }

     foreach (var item in items)
    {
       var values = new object[props.Length];
        for (var i=0; i<props.Length; i++)
        {
            values[i] = props[i].GetValue(item, null);
        }

        tb.Rows.Add(values);
    }

    return tb;
}

Loading custom yml file with multiple profile config in Spring Boot.

1) Add the property bean with SpringBootApplication start up as follows

@SpringBootApplication
@ComponentScan({"com.example.as.*"})
public class TestApplication {

    public static void main(String[] args) {
        SpringApplication.run(TestApplication.class, args);
    }

    @Bean
    @Profile("dev")
    public PropertySourcesPlaceholderConfigurer propertiesStage() {
        return properties("dev");
    }

    @Bean
    @Profile("stage")
    public PropertySourcesPlaceholderConfigurer propertiesDev() {
        return properties("stage");
    }

    @Bean
    @Profile("default")
    public PropertySourcesPlaceholderConfigurer propertiesDefault() {
        return properties("default");

    }
   /**
    * Update custom specific yml file with profile configuration.
    * @param profile
    * @return
    */
    public static PropertySourcesPlaceholderConfigurer properties(String profile) {
       PropertySourcesPlaceholderConfigurer propertyConfig = null;
       YamlPropertiesFactoryBean yaml  = null;

       propertyConfig  = new PropertySourcesPlaceholderConfigurer();
       yaml = new YamlPropertiesFactoryBean();
       yaml.setDocumentMatchers(new SpringProfileDocumentMatcher(profile));// load profile filter.
       yaml.setResources(new ClassPathResource("env_config/test-service-config.yml"));
       propertyConfig.setProperties(yaml.getObject());
       return propertyConfig;
    }
}

2) Config the Java pojo object as follows

@Component
@JsonIgnoreProperties(ignoreUnknown = true)
@JsonInclude(Include.NON_NULL)
@ConfigurationProperties(prefix = "test-service")
public class TestConfig {

    @JsonProperty("id") 
    private  String id;

    @JsonProperty("name")
    private String name;

    public String getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

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

}

3) Create the custom yml (and place it under resource path as follows, YML File name : test-service-config.yml

Eg Config in the yml file.

test-service: 
    id: default_id
    name: Default application config
---
spring:
  profiles: dev

test-service: 
  id: dev_id
  name: dev application config

--- 
spring:
  profiles: stage

test-service: 
  id: stage_id
  name: stage application config

If you have set up your UIBarButtonItem with an image in the storyboard, one small hack to change the renderingMode is to add the following code to your viewDidLoad(). This way you don't have to resort to adding the entire button and image in code.

if let navButton = self.navigationItem.leftBarButtonItem, let buttonImage = navButton.image {
    navButton.image = buttonImage.withRenderingMode(.alwaysOriginal)
}

Instead using border use box-shadow:

  box-shadow: 
    2px 0 0 0 #888, 
    0 2px 0 0 #888, 
    2px 2px 0 0 #888,   /* Just to fix the corner */
    2px 0 0 0 #888 inset, 
    0 2px 0 0 #888 inset;

Demo: http://codepen.io/Hawkun/pen/rsIEp

string founded = FindStringTakeX("UID:   994zxfa6q", "UID:", 9);


string FindStringTakeX(string strValue,string findKey,int take,bool ignoreWhiteSpace = true)
    {
        int index = strValue.IndexOf(findKey) + findKey.Length;

        if (index >= 0)
        {
            if (ignoreWhiteSpace)
            {
                while (strValue[index].ToString() == " ")
                {
                    index++;
                }
            }

            if(strValue.Length >= index + take)
            {
                string result = strValue.Substring(index, take);

                return result;
            }


        }

        return string.Empty;
    }

You may want to use the Continue statement to continue with the innermost loop.

Excerpt from PowerShell help file:

In a script, the continue statement causes program flow to move immediately to the top of the innermost loop controlled by any of these statements:

• for
• foreach
• while

As it was already mentioned in previous answers, your matrix cannot be inverted, because its determinant is 0. But if you still want to get inverse matrix, you can use np.linalg.pinv, which leverages SVD to approximate initial matrix.

FOR /r %%X IN (*) DO (ECHO %%X & DEL %%X)

In case you are in a VPS and are trying to edit a my.cnf on an already running server you could try:

ps aux | grep mysql

You will be show the parameters the mysql command is being run and where the --defaults-file points to

Note that your server might be running more than one MySQL/MariaDB server's. If you see a line without --defaults-file parameter, that instance might be retrieving the configuration from the .cnf's that are mentioned on mysqladmin --help as others have pointed out.

Try margin: 0 auto, the div will need a fixed with.

You can also take a look at LineNumberReader, subclass of BufferedReader. Along with the readline method, it also has setter/getter methods to access line number. Very useful to keep track of the number of lines read, while reading data from file.

One of the powerful features of SQLite is allowing you to choose the storage type. Advantages/disadvantages of each of the three different possibilites:

• ISO8601 string

  • String comparison gives valid results
  • Stores fraction seconds, up to three decimal digits
  • Needs more storage space
  • You will directly see its value when using a database browser
  • Need for parsing for other uses
  • "default current_timestamp" column modifier will store using this format

• Real number

  • High precision regarding fraction seconds
  • Longest time range

• Integer number

  • Lowest storage space
  • Quick operations
  • Small time range
  • Possible year 2038 problem

If you need to compare different types or export to an external application, you're free to use SQLite's own datetime conversion functions as needed.

Use format string

intNum = 123
print "0x%x"%(intNum)

or hex function.

intNum = 123
print hex(intNum)

On click BUTTON action

   if(isset($_POST['save_btn']))
    {
        //write some of your code here, if necessary
        echo'<script> window.location="B.php"; </script> ';
     }

I would go with Collections.emptyList() if the returned list is not being modified in any way (as the list is immutable), otherwise I would go with option 2.

The benefit of Collections.emptyList() is that the same static instance is returned each time and so there is not instance creation occurring for each call.

A list or array implementation loads all of the items immediately whereas the yield implementation provides a deferred execution solution.

In practice, it is often desirable to perform the minimum amount of work as needed in order to reduce the resource consumption of an application.

For example, we may have an application that process millions of records from a database. The following benefits can be achieved when we use IEnumerable in a deferred execution pull-based model:

• Scalability, reliability and predictability are likely to improve since the number of records does not significantly affect the application’s resource requirements.
• Performance and responsiveness are likely to improve since processing can start immediately instead of waiting for the entire collection to be loaded first.
• Recoverability and utilisation are likely to improve since the application can be stopped, started, interrupted or fail. Only the items in progress will be lost compared to pre-fetching all of the data where only using a portion of the results was actually used.
• Continuous processing is possible in environments where constant workload streams are added.

Here is a comparison between build a collection first such as a list compared to using yield.

List Example

    public class ContactListStore : IStore<ContactModel>
    {
        public IEnumerable<ContactModel> GetEnumerator()
        {
            var contacts = new List<ContactModel>();
            Console.WriteLine("ContactListStore: Creating contact 1");
            contacts.Add(new ContactModel() { FirstName = "Bob", LastName = "Blue" });
            Console.WriteLine("ContactListStore: Creating contact 2");
            contacts.Add(new ContactModel() { FirstName = "Jim", LastName = "Green" });
            Console.WriteLine("ContactListStore: Creating contact 3");
            contacts.Add(new ContactModel() { FirstName = "Susan", LastName = "Orange" });
            return contacts;
        }
    }

    static void Main(string[] args)
    {
        var store = new ContactListStore();
        var contacts = store.GetEnumerator();

        Console.WriteLine("Ready to iterate through the collection.");
        Console.ReadLine();
    }

Console Output
ContactListStore: Creating contact 1
ContactListStore: Creating contact 2
ContactListStore: Creating contact 3
Ready to iterate through the collection.

Note: The entire collection was loaded into memory without even asking for a single item in the list

Yield Example

public class ContactYieldStore : IStore<ContactModel>
{
    public IEnumerable<ContactModel> GetEnumerator()
    {
        Console.WriteLine("ContactYieldStore: Creating contact 1");
        yield return new ContactModel() { FirstName = "Bob", LastName = "Blue" };
        Console.WriteLine("ContactYieldStore: Creating contact 2");
        yield return new ContactModel() { FirstName = "Jim", LastName = "Green" };
        Console.WriteLine("ContactYieldStore: Creating contact 3");
        yield return new ContactModel() { FirstName = "Susan", LastName = "Orange" };
    }
}

static void Main(string[] args)
{
    var store = new ContactYieldStore();
    var contacts = store.GetEnumerator();

    Console.WriteLine("Ready to iterate through the collection.");
    Console.ReadLine();
}

Console Output
Ready to iterate through the collection.

Note: The collection wasn't executed at all. This is due to the "deferred execution" nature of IEnumerable. Constructing an item will only occur when it is really required.

Let's call the collection again and obverse the behaviour when we fetch the first contact in the collection.

static void Main(string[] args)
{
    var store = new ContactYieldStore();
    var contacts = store.GetEnumerator();
    Console.WriteLine("Ready to iterate through the collection");
    Console.WriteLine("Hello {0}", contacts.First().FirstName);
    Console.ReadLine();
}

Console Output
Ready to iterate through the collection
ContactYieldStore: Creating contact 1
Hello Bob

Nice! Only the first contact was constructed when the client "pulled" the item out of the collection.

Answers above don't distinguish between simple chinese and traditinal chinese. Locale.getDefault().toString() works which returns "zh_CN", "zh_TW", "en_US" and etc.

References to : https://developer.android.com/reference/java/util/Locale.html, ISO 639-1 is OLD.

Just want to share another option:

# mark two objects to be deleted
session.delete(obj1)
session.delete(obj2)

# commit (or flush)
session.commit()

http://docs.sqlalchemy.org/en/latest/orm/session_basics.html#deleting

In this example, the following codes shall works fine:

obj = User.query.filter_by(id=123).one()
session.delete(obj)
session.commit()

Sounds like you're looking for rbind:

> a<-matrix(nrow=10,ncol=5)
> b<-matrix(nrow=20,ncol=5)
> dim(rbind(a,b))
[1] 30  5

Similarly, cbind stacks the matrices horizontally.

I am not entirely sure what you mean by the last question ("Can I do this for matrices of different rows and columns.?")

import urllib.request
import os

img_url = "https://betanews.com/wp-content/uploads/2017/09/firefox-logo.jpg"
img_name = os.path.basename(img_url)
urllib.request.urlretrieve(img_url,img_name)

Errors and exceptions in PowerShell are structured objects. The error message you see printed on the console is actually a formatted message with information from several elements of the error/exception object. You can (re-)construct it yourself like this:

$formatstring = "{0} : {1}`n{2}`n" +
                "    + CategoryInfo          : {3}`n" +
                "    + FullyQualifiedErrorId : {4}`n"
$fields = $_.InvocationInfo.MyCommand.Name,
          $_.ErrorDetails.Message,
          $_.InvocationInfo.PositionMessage,
          $_.CategoryInfo.ToString(),
          $_.FullyQualifiedErrorId

$formatstring -f $fields

If you just want the error message displayed in your catch block you can simply echo the current object variable (which holds the error at that point):

try {
  ...
} catch {
  $_
}

If you need colored output use Write-Host with a formatted string as described above:

try {
  ...
} catch {
  ...
  Write-Host -Foreground Red -Background Black ($formatstring -f $fields)
}

With that said, usually you don't want to just display the error message as-is in an exception handler (otherwise the -ErrorAction Stop would be pointless). The structured error/exception objects provide you with additional information that you can use for better error control. For instance you have $_.Exception.HResult with the actual error number. $_.ScriptStackTrace and $_.Exception.StackTrace, so you can display stacktraces when debugging. $_.Exception.InnerException gives you access to nested exceptions that often contain additional information about the error (top level PowerShell errors can be somewhat generic). You can unroll these nested exceptions with something like this:

$e = $_.Exception
$msg = $e.Message
while ($e.InnerException) {
  $e = $e.InnerException
  $msg += "`n" + $e.Message
}
$msg

In your case the information you want to extract seems to be in $_.ErrorDetails.Message. It's not quite clear to me if you have an object or a JSON string there, but you should be able to get information about the types and values of the members of $_.ErrorDetails by running

$_.ErrorDetails | Get-Member
$_.ErrorDetails | Format-List *

If $_.ErrorDetails.Message is an object you should be able to obtain the message string like this:

$_.ErrorDetails.Message.message

otherwise you need to convert the JSON string to an object first:

$_.ErrorDetails.Message | ConvertFrom-Json | Select-Object -Expand message

Depending what kind of error you're handling, exceptions of particular types might also include more specific information about the problem at hand. In your case for instance you have a WebException which in addition to the error message ($_.Exception.Message) contains the actual response from the server:

PS C:\> $e.Exception | Get-Member

   TypeName: System.Net.WebException

Name             MemberType Definition
----             ---------- ----------
Equals           Method     bool Equals(System.Object obj), bool _Exception.E...
GetBaseException Method     System.Exception GetBaseException(), System.Excep...
GetHashCode      Method     int GetHashCode(), int _Exception.GetHashCode()
GetObjectData    Method     void GetObjectData(System.Runtime.Serialization.S...
GetType          Method     type GetType(), type _Exception.GetType()
ToString         Method     string ToString(), string _Exception.ToString()
Data             Property   System.Collections.IDictionary Data {get;}
HelpLink         Property   string HelpLink {get;set;}
HResult          Property   int HResult {get;}
InnerException   Property   System.Exception InnerException {get;}
Message          Property   string Message {get;}
Response         Property   System.Net.WebResponse Response {get;}
Source           Property   string Source {get;set;}
StackTrace       Property   string StackTrace {get;}
Status           Property   System.Net.WebExceptionStatus Status {get;}
TargetSite       Property   System.Reflection.MethodBase TargetSite {get;}

which provides you with information like this:

PS C:\> $e.Exception.Response

IsMutuallyAuthenticated : False
Cookies                 : {}
Headers                 : {Keep-Alive, Connection, Content-Length, Content-T...}
SupportsHeaders         : True
ContentLength           : 198
ContentEncoding         :
ContentType             : text/html; charset=iso-8859-1
CharacterSet            : iso-8859-1
Server                  : Apache/2.4.10
LastModified            : 17.07.2016 14:39:29
StatusCode              : NotFound
StatusDescription       : Not Found
ProtocolVersion         : 1.1
ResponseUri             : http://www.example.com/
Method                  : POST
IsFromCache             : False

Since not all exceptions have the exact same set of properties you may want to use specific handlers for particular exceptions:

try {
  ...
} catch [System.ArgumentException] {
  # handle argument exceptions
} catch [System.Net.WebException] {
  # handle web exceptions
} catch {
  # handle all other exceptions
}

If you have operations that need to be done regardless of whether an error occured or not (cleanup tasks like closing a socket or a database connection) you can put them in a finally block after the exception handling:

try {
  ...
} catch {
  ...
} finally {
  # cleanup operations go here
}

Here's my solution:

# /initializers/string.rb
class String
  IntegerRegex = /^(\d)+$/

  def integer?
    !!self.match(IntegerRegex)
  end
end

# any_model_or_controller.rb
'12345'.integer? # true
'asd34'.integer? # false

And here's how it works:

• /^(\d)+$/is regex expression for finding digits in any string. You can test your regex expressions and results at http://rubular.com/.
• We save it in a constant IntegerRegex to avoid unnecessary memory allocation everytime we use it in the method.
• integer? is an interrogative method which should return true or false.
• match is a method on string which matches the occurrences as per the given regex expression in argument and return the matched values or nil.
• !! converts the result of match method into equivalent boolean.
• And declaring the method in existing String class is monkey patching, which doesn't change anything in existing String functionalities, but just adds another method named integer? on any String object.

For multiple times of execution of our model, random state make sure that data values will be same for training and testing data sets. It fixes the order of data for train_test_split

If you explicitly cast double to int, the decimal part will be truncated. For example:

int x = (int) 4.97542;   //gives 4 only
int x = (int) 4.23544;   //gives 4 only

Moreover, you may also use Math.floor() method to round values in case you want double value in return.

// works also after bind operation for WINDOWS

DWORD timeout = timeout_in_seconds * 1000;
setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof timeout);

Use next:

(1..10).each do |a|
  next if a.even?
  puts a
end

prints:

1
3   
5
7
9

For additional coolness check out also redo and retry.

Works also for friends like times, upto, downto, each_with_index, select, map and other iterators (and more generally blocks).

For more info see http://ruby-doc.org/docs/ProgrammingRuby/html/tut_expressions.html#UL.

In my case the error was thrown in Xcode when running an app on the iOS simulator. While I cannot answer the specific question "what the error means", I can say what helped me, maybe it also helps others.

The solution for me was to Erase All Content and Settings in the simulator and to Clean Build Folder... in Xcode.

As an alternative solution, you can also use a context part of jQuery selector to find <option> element(s) with value="2" inside the dropdown list:

$("option[value='2']", "#list").text();

A stateless system can be seen as a box [black? ;)] where at any point in time the value of the output(s) depends only on the value of the input(s) [after a certain processing time]

A stateful system instead can be seen as a box where at any point in time the value of the output(s) depends on the value of the input(s) and of an internal state, so basicaly a stateful system is like a state machine with "memory" as the same set of input(s) value can generate different output(s) depending on the previous input(s) received by the system.

From the parallel programming point of view, a stateless system, if properly implemented, can be executed by multiple threads/tasks at the same time without any concurrency issue [as an example think of a reentrant function] A stateful system will requires that multiple threads of execution access and update the internal state of the system in an exclusive way, hence there will be a need for a serialization [synchronization] point.

If you're happy to use the Microsoft Reactive Extensions, then this can work nicely:

public class Foo
{
    public delegate void MyEventHandler(object source, MessageEventArgs args);
    public event MyEventHandler _event;
    public string ReadLine()
    {
        return Observable
            .FromEventPattern<MyEventHandler, MessageEventArgs>(
                h => this._event += h,
                h => this._event -= h)
            .Select(ep => ep.EventArgs.Message)
            .First();
    }
    public void SendLine(string message)
    {
        _event(this, new MessageEventArgs() { Message = message });
    }
}

public class MessageEventArgs : EventArgs
{
    public string Message;
}

I can use it like this:

var foo = new Foo();

ThreadPoolScheduler.Instance
    .Schedule(
        TimeSpan.FromSeconds(5.0),
        () => foo.SendLine("Bar!"));

var resp = foo.ReadLine();

Console.WriteLine(resp);

I needed to call the SendLine message on a different thread to avoid locking, but this code shows that it works as expected.

You can compile individual files(s) from the command line with:

python -m compileall <file_1>.py <file_n>.py

Now with laravel 4.2 it is easy to get user's id:

$userId = Auth::id();

that is all.

But to retrieve user's data other than id, you use:

$email = Auth::user()->email;

For more details, check security part of the documentation

In some languages this can be solved with tail call optimization, where the recursion call is transformed under the hood into a loop so no maximum stack size reached error exists.

But in javascript the current engines don't support this, it's foreseen for new version of the language Ecmascript 6.

Node.js has some flags to enable ES6 features but tail call is not yet available.

So you can refactor your code to implement a technique called trampolining, or refactor in order to transform recursion into a loop.

Correct:

java -classpath "lib/*:." my.package.Program

Incorrect:

java -classpath "lib/a*.jar:." my.package.Program
java -classpath "lib/a*:."     my.package.Program
java -classpath "lib/*.jar:."  my.package.Program
java -classpath  lib/*:.       my.package.Program

If you've got many database it import and the dumps is big (I often work with multigigabyte Gzipped dumps).

There here a way to do it inside mysql.

$ mkdir databases
$ cd databases
$ scp user@orgin:*.sql.gz .  # Here you would just use putty to copy into this dir.
$ mkfifo src
$ mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.41-0
Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> create database db1;
mysql> \! ( zcat  db1.sql.gz > src & )
mysql> source src
.
.
mysql> create database db2;
mysql> \! ( zcat  db2.sql.gz > src & )
mysql> source src

The only advantage this has over

zcat db1.sql.gz | mysql -u root -p 

is that you can easily do multiple without enter the password lots of times.

Full sync has few tasks:

• reverting changes
• removing new files
• get latest from remote repository

git reset HEAD --hard

git clean -f

git pull origin master

Or else, what I prefer is that, I may create a new branch with the latest from the remote using:

git checkout origin/master -b <new branch name>

origin is my remote repository reference, and master is my considered branch name. These may different from yours.

If you happen to already be using pandas, you can save a little space by not specifying the format:

import pandas as pd
startdate = "10/10/2011"
enddate = pd.to_datetime(startdate) + pd.DateOffset(days=5)

perl one-liner alert

just for fun... print only one line after match

perl -lne '$next = ($.+1) if /match/; $. == $next && print' data.txt

even more fun... print the next ten lines after match

perl -lne 'push @nexts, (($.+1)..($.+10)) if /match/; $. ~~ @nexts && print' data.txt

kinda cheating though since there's actually two commands

Typically, boolean values that are used in branches immediately after they're calculated like this are never actually stored in variables. Instead, the compiler just branches directly off the condition codes that were set from the preceding comparison. For example,

int a = SomeFunction();
bool result = --a >= 0; // use subtraction as example computation
if ( result ) 
{
   foo(); 
}
else
{
   bar();
}
return;

Usually compiles to something like:

call .SomeFunction  ; calls to SomeFunction(), which stores its return value in eax
sub eax, 1 ; subtract 1 from eax and store in eax, set S (sign) flag if result is negative
jl ELSEBLOCK ; GOTO label "ELSEBLOCK" if S flag is set
call .foo ; this is the "if" black, call foo()
j FINISH ; GOTO FINISH; skip over the "else" block
ELSEBLOCK: ; label this location to the assembler
call .bar
FINISH: ; both paths end up here
ret ; return

Notice how the "bool" is never actually stored anywhere.

// Environment.GetFolderPath
Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData); // Current User's Application Data
Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData); // All User's Application Data
Environment.GetFolderPath(Environment.SpecialFolder.CommonProgramFiles); // Program Files
Environment.GetFolderPath(Environment.SpecialFolder.Cookies); // Internet Cookie
Environment.GetFolderPath(Environment.SpecialFolder.Desktop); // Logical Desktop
Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory); // Physical Desktop
Environment.GetFolderPath(Environment.SpecialFolder.Favorites); // Favorites
Environment.GetFolderPath(Environment.SpecialFolder.History); // Internet History
Environment.GetFolderPath(Environment.SpecialFolder.InternetCache); // Internet Cache
Environment.GetFolderPath(Environment.SpecialFolder.MyComputer); // "My Computer" Folder
Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments); // "My Documents" Folder
Environment.GetFolderPath(Environment.SpecialFolder.MyMusic); // "My Music" Folder
Environment.GetFolderPath(Environment.SpecialFolder.MyPictures); // "My Pictures" Folder
Environment.GetFolderPath(Environment.SpecialFolder.Personal); // "My Document" Folder
Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles); // Program files Folder
Environment.GetFolderPath(Environment.SpecialFolder.Programs); // Programs Folder
Environment.GetFolderPath(Environment.SpecialFolder.Recent); // Recent Folder
Environment.GetFolderPath(Environment.SpecialFolder.SendTo); // "Sent to" Folder
Environment.GetFolderPath(Environment.SpecialFolder.StartMenu); // Start Menu
Environment.GetFolderPath(Environment.SpecialFolder.Startup); // Startup
Environment.GetFolderPath(Environment.SpecialFolder.System); // System Folder
Environment.GetFolderPath(Environment.SpecialFolder.Templates); // Document Templates

import vs. include

The primary purpose of an import is to import a namespace. A more common use of the XSD import statement is to import a namespace which appears in another file. You might be gathering the namespace information from the file, but don't forget that it's the namespace that you're importing, not the file (don't confuse an import statement with an include statement).

Another area of confusion is how to specify the location or path of the included .xsd file: An XSD import statement has an optional attribute named schemaLocation but it is not necessary if the namespace of the import statement is at the same location (in the same file) as the import statement itself.

When you do chose to use an external .xsd file for your WSDL, the schemaLocation attribute becomes necessary. Be very sure that the namespace you use in the import statement is the same as the targetNamespace of the schema you are importing. That is, all 3 occurrences must be identical:

WSDL:

xs:import namespace="urn:listing3" schemaLocation="listing3.xsd"/>

XSD:

<xsd:schema targetNamespace="urn:listing3"
            xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 

Another approach to letting know the WSDL about the XSD is through Maven's pom.xml:

<plugin>
  <groupId>org.codehaus.mojo</groupId>
  <artifactId>xmlbeans-maven-plugin</artifactId>
  <executions>
    <execution>
      <id>generate-sources-xmlbeans</id>
      <phase>generate-sources</phase>
      <goals>
    <goal>xmlbeans</goal>
      </goals>
    </execution>
  </executions>
  <version>2.3.3</version>
  <inherited>true</inherited>
  <configuration>
    <schemaDirectory>${basedir}/src/main/xsd</schemaDirectory>
  </configuration>
</plugin>

You can read more on this in this great IBM article. It has typos such as xsd:import instead of xs:import but otherwise it's fine.

This happens because $cOTLdata is not null but the index 'char_data' does not exist. Previous versions of PHP may have been less strict on such mistakes and silently swallowed the error / notice while 7.4 does not do this anymore.

To check whether the index exists or not you can use isset():

isset($cOTLdata['char_data'])

Which means the line should look something like this:

$len = isset($cOTLdata['char_data']) ? count($cOTLdata['char_data']) : 0;

Note I switched the then and else cases of the ternary operator since === null is essentially what isset already does (but in the positive case).

Quote:

The "-a" operator also doesn't work:

if [ $STATUS -ne 200 ] -a [[ "$STRING" != "$VALUE" ]]

For a more elaborate explanation: [ and ] are not Bash reserved words. The if keyword introduces a conditional to be evaluated by a job (the conditional is true if the job's return value is 0 or false otherwise).

For trivial tests, there is the test program (man test).

As some find lines like if test -f filename; then foo bar; fi, etc. annoying, on most systems you find a program called [ which is in fact only a symlink to the test program. When test is called as [, you have to add ] as the last positional argument.

So if test -f filename is basically the same (in terms of processes spawned) as if [ -f filename ]. In both cases the test program will be started, and both processes should behave identically.

Here's your mistake: if [ $STATUS -ne 200 ] -a [[ "$STRING" != "$VALUE" ]] will parse to if + some job, the job being everything except the if itself. The job is only a simple command (Bash speak for something which results in a single process), which means the first word ([) is the command and the rest its positional arguments. There are remaining arguments after the first ].

Also not, [[ is indeed a Bash keyword, but in this case it's only parsed as a normal command argument, because it's not at the front of the command.

This will enable appending to file using StreamWriter

 using (StreamWriter stream = new StreamWriter("YourFilePath", true)) {...}

This is default mode, not append to file and create a new file.

using (StreamWriter stream = new StreamWriter("YourFilePath", false)){...}
                           or
using (StreamWriter stream = new StreamWriter("YourFilePath")){...}

Anyhow if you want to check if the file exists and then do other things,you can use

using (StreamWriter sw = (File.Exists(path)) ? File.AppendText(path) : File.CreateText(path))
            {...}

This may or may not be useful to others, but for my particular use case I just wanted additional parameters to be passed back from the form when the option was selected - these parameters had the same values for all options, so... my solution was to include hidden inputs in the form with the select, like:

<FORM action="" method="POST">
    <INPUT TYPE="hidden" NAME="OTHERP1" VALUE="P1VALUE">
    <INPUT TYPE="hidden" NAME="OTHERP2" VALUE="P2VALUE">
    <SELECT NAME="Testing">  
        <OPTION VALUE="1"> One </OPTION> 
        <OPTION VALUE="2"> Two </OPTION>
        <OPTION VALUE="3"> Three </OPTION>
    </SELECT>
</FORM>

Maybe obvious... more obvious after you see it.

Not possible, per MSDN:

You can have the same code execute for multiple trigger types, but the syntax does not allow for multiple code blocks in one trigger:

Trigger on an INSERT, UPDATE, or DELETE statement to a table or view (DML Trigger)

CREATE TRIGGER [ schema_name . ]trigger_name 
ON { table | view } 
[ WITH <dml_trigger_option> [ ,...n ] ]
{ FOR | AFTER | INSTEAD OF } 
{ [ INSERT ] [ , ] [ UPDATE ] [ , ] [ DELETE ] } 
[ NOT FOR REPLICATION ] 
AS { sql_statement  [ ; ] [ ,...n ] | EXTERNAL NAME <method specifier [ ; ] > }

function valid(id)
    {
        var textVal=document.getElementById(id).value;
        if (!textVal.match("Tryit") 
        {
            alert("Field says Tryit");
            return false;
        } 
        else 
        {
            return true;
        }
     }

Use this for expressing things

I will add something to Deepak Goel's answer since a lot of people, me included, were getting a null by using his method. Apparently to make the tag work when you add a fragment to the backstack you should be doing it like this:

getSupportFragmentManager.beginTransaction().replace(R.id.container_id,FragmentName,TAG_NAME).addToBackStack(TAG_NAME).commit();

You need to add the same tag twice.

I would have commented but i don't have 50 reputation.

I just happened to come by your question and i have a solution. But its in jquery. Its too simple.

$('iframe').contents().find('body').css({"min-height": "100", "overflow" : "hidden"});
setInterval( "$('iframe').height($('iframe').contents().find('body').height() + 20)", 1 );

There you go!

Cheers! :)

Edit: If you have a Rich Text Editor based on the iframe method and not the div method and want it to expand every new line then this code will do the needful.

white-space: nowrap is the correct solution but it will prevent any break in a line. If you only want to prevent line breaks between two elements it gets a bit more complicated:

<p>
    <span class="text">Some text</span>
    <span class="icon"></span>
</p>

To prevent breaks between the spans but to allow breaks between "Some" and "text" can be done by:

p {
    white-space: nowrap;
}

.text {
    white-space: normal;
}

That's good enough for Firefox. In Chrome you additionally need to replace the whitespace between the spans with an  . (Removing the whitespace doesn't work.)

Simply call list on the generator.

lst = list(gen)
lst

Be aware that this affects the generator which will not return any further items.

You also cannot directly call list in IPython, as it conflicts with a command for listing lines of code.

Tested on this file:

def gen():
    yield 1
    yield 2
    yield 3
    yield 4
    yield 5
import ipdb
ipdb.set_trace()

g1 = gen()

text = "aha" + "bebe"

mylst = range(10, 20)

which when run:

$ python code.py 
> /home/javl/sandbox/so/debug/code.py(10)<module>()
      9 
---> 10 g1 = gen()
     11 

ipdb> n
> /home/javl/sandbox/so/debug/code.py(12)<module>()
     11 
---> 12 text = "aha" + "bebe"
     13 

ipdb> lst = list(g1)
ipdb> lst
[1, 2, 3, 4, 5]
ipdb> q
Exiting Debugger.

General method for escaping function/variable/debugger name conflicts

There are debugger commands p and pp that will print and prettyprint any expression following them.

So you could use it as follows:

$ python code.py 
> /home/javl/sandbox/so/debug/code.py(10)<module>()
      9 
---> 10 g1 = gen()
     11 

ipdb> n
> /home/javl/sandbox/so/debug/code.py(12)<module>()
     11 
---> 12 text = "aha" + "bebe"
     13 

ipdb> p list(g1)
[1, 2, 3, 4, 5]
ipdb> c

There is also an exec command, called by prefixing your expression with !, which forces debugger to take your expression as Python one.

ipdb> !list(g1)
[]

For more details see help p, help pp and help exec when in debugger.

ipdb> help exec
(!) statement
Execute the (one-line) statement in the context of
the current stack frame.
The exclamation point can be omitted unless the first word
of the statement resembles a debugger command.
To assign to a global variable you must always prefix the
command with a 'global' command, e.g.:
(Pdb) global list_options; list_options = ['-l']

Just put the code ListView.Items.Clear(); on your method

Some installations of Apache are fubar (think Oracle's packaging of it, OHS) and do not understand the -V flag, nor can be invoked directly without running into missing library errors.

Easiest way is to use the strings command (part of binutils) on the httpd binary and grep for a string that might resemble a version. For example, assuming your httpd binary is under directory /foo/bar:

$ strings /foo/bar/httpd  | grep 2.2
GLIBC_2.2.5
Oracle-HTTP-Server/2.2.22 (Unix)
Success_Accepted_202
202 Accepted

Most binaries (not all) contain their version (at least their major version) as static strings. This is my go-to way to get versions (or to corroborate what a binary's help message matches what reality on the ground truly is.)

Number of days calculation between two dates.

    $(document).ready(function () {
        $('.submit').on('click', function () {
            var startDate = $('.start-date').val();
            var endDate = $('.end-date').val();

            var start = new Date(startDate);
            var end = new Date(endDate);

            var diffDate = (end - start) / (1000 * 60 * 60 * 24);
            var days = Math.round(diffDate);
        });
    });

You can make use of java.util.Date instead of Timestamp :

String timeStamp = new SimpleDateFormat("yyyy.MM.dd.HH.mm.ss").format(new Date());

That approach will be good if the date-time in question is in UTC, or represents local time in an area that has never observed daylight saving time. The DateTime difference routines do not take into account Daylight Saving Time, and consequently will regard midnight June 1 as being a multiple of 24 hours after midnight January 1. I'm unaware of anything in Windows that reports historical daylight-saving rules for the current locale, so I don't think there's any good way to correctly handle any time prior to the most recent daylight-saving rule change.

A good option is to use an API like Docverter. Docverter will allow you to convert HTML to PDF or DOCX using an API.

See this example. You need to bind the event key propagation

$(document).ready(function () {
    $('#confirmEmail').keydown(function (e) {
        if (e.ctrlKey && (e.keyCode == 88 || e.keyCode == 67 || e.keyCode == 86)) {
            return false;
        }
    });
});

This worked for me

<div style="display: flex; position: absolute; width: 100%;">
  <div style="white-space: nowrap; overflow: hidden;text-overflow: ellipsis;">
    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer nec odio. Praesent libero. Sed cursus ante dapibus diam. Sed nisi.
  </div>
</div>

Adding position:absolute to the parent container made it work.

PS: This is for anyone looking for a solution to dynamically truncating text.

EDIT: This was meant to be an answer for this question but since they are related and it could help someone on this question I shall also leave it here instead of deleting it.

Because of double print function. I suggest you to use return instead of print inside the function definition.

def lyrics():
    return "The very first line"
print(lyrics())

OR

def lyrics():
    print("The very first line")
lyrics()

>>> print "%r, %r" % (True, False)
True, False

This is not specific to boolean values - %r calls the __repr__ method on the argument. %s (for str) should also work.

Use:

MessageBoxResult m = MessageBox.Show("The file will be saved here.", "File Save", MessageBoxButton.OKCancel);
if(m == m.Yes)
{
    // Do something
}
else if (m == m.No)
{
    // Do something else
}

MessageBoxResult is used on Windows Phone instead of DialogResult...

Use a Timer. Timer documentation.

Try this:

$r = Page()->getInstanceByName($page);

It worked for me in a similar case.

If you are running the command from a POSIX-compliant shell, like bash, you can set the environment variable like this:

PYTHONPATH="/path/to" python somescript.py somecommand

If it's all on one line, the PYTHONPATH environment value applies only to that one command.

$ echo $PYTHONPATH

$ python -c 'import sys;print("/tmp/pydir" in sys.path)'
False
$ PYTHONPATH=/tmp/pydir python -c 'import sys;print("/tmp/pydir" in sys.path)'
True
$ echo $PYTHONPATH

Note that you could as well plot directly from ce (after the comma removing) using the column name :

hist(ce$Weight)

(As opposed to using hist(ce[1]), which would lead to the same "must be numeric" error.)

This also works for a database query result.

I would change your service layer to:

public Task<BackOfficeResponse<List<Country>>> ReturnAllCountries()
{
    return Task.Run(() =>
    {
        return _service.Process<List<Country>>(BackOfficeEndpoint.CountryEndpoint, "returnCountries");
    }      
}

as you have it, you are still running your _service.Process call synchronously, and gaining very little or no benefit from awaiting it.

With this approach, you are wrapping the potentially slow call in a Task, starting it, and returning it to be awaited. Now you get the benefit of awaiting the Task.

In pyspark DOCS it would be subtract

df1.subtract(df2)

in .Net 3.5 and after you could use the activator class:

(T)Activator.CreateInstance(typeof(T), args)

Judging by the documentation for date/time functions, you should be able to do something like:

SELECT * FROM FOO
WHERE MY_DATE_FIELD >= NOW() - INTERVAL 1 DAY

According to the docs, router.push seems like the preferred method:

To navigate to a different URL, use router.push. This method pushes a new entry into the history stack, so when the user clicks the browser back button they will be taken to the previous URL.

source: https://router.vuejs.org/en/essentials/navigation.html

FYI : Webpack & component setup, single page app (where you import the router through Main.js), I had to call the router functions by saying:

this.$router

Example: if you wanted to redirect to a route called "Home" after a condition is met:

this.$router.push('Home') 

Toggle between two classes 'A' and 'B' with Jquery.

$('#selecor_id').toggleClass("A B");

Create a file named "config.js" in ./src folder with this content:

module.exports = global.config = {
    i18n: {
        welcome: {
            en: "Welcome",
            fa: "??? ?????"
        }
        // rest of your translation object
    }
    // other global config variables you wish
};

In your main file "index.js" put this line:

import './config';

Everywhere you need your object use this:

global.config.i18n.welcome.en

I had this problem, too.

Possible causes in my case: I had deleted a duplicated view twice and a view model. I reverted one of the deletes and then the InitializeComponent error appeared. I took these steps.

1. I checked all of the solutions mentioned on this question. The class name and build action were correct.
2. I Cleaned my Solution and rebuilt. Another error appeared. "Error CS2001: Source file '.cs' could not be found"
3. I found this answer and followed the steps.
4. I reloaded the project and cleaned/rebuilt again.
5. My solution builds without errors and my application works now.

What about a more direct approach?

if (Request.QueryString.AllKeys.Contains("mykey")

You can use the COALESCE function in MS SQL.

INSERT INTO t ( value ) VALUES( COALESCE(@value, 'something') )

Personally, I'm not crazy about this solution as it is a maintenance nightmare if you want to change the default value.

My preference would be Mitchel Sellers proposal, but that doesn't work in MS SQL. Can't speak to other SQL dbms.

The accepted answer via git merge will get the job done but leaves a messy commit hisotry, correct way should be 'rebase' via the following steps(assuming you want to keep your feature branch in sycn with develop before you do the final push before PR).

1 git fetch from your feature branch (make sure the feature branch you are working on is update to date)

2 git rebase origin/develop

3 if any conflict shall arise, resolve them one by one

4 use git rebase --continue once all conflicts are dealt with

5 git push --force

A thing you have to understand first: you have no files.
A file is a subject of a filesystem, but you are making your request using HTTP protocol which supports no files but URLs.

So, you have to request an unexisting file using your browser and see the response code. if it's not 404, you are unable to use any wrappers to see if a file exists and you have to request your cdn using some other protocol, FTP for example

If rooted:

Runtime.getRuntime().exec("su -c service call activity 42 s16 com.example.your_app");

Use path.join(__dirname, '/start.html');

var fs = require('fs'),
    path = require('path'),    
    filePath = path.join(__dirname, 'start.html');

fs.readFile(filePath, {encoding: 'utf-8'}, function(err,data){
    if (!err) {
        console.log('received data: ' + data);
        response.writeHead(200, {'Content-Type': 'text/html'});
        response.write(data);
        response.end();
    } else {
        console.log(err);
    }
});

Thanks to dc5.