Try this:

sed -i 's/\s*$//' youfile.txt

Here is how you would do this with a nested list comprehension:

[[float(y) for y in x] for x in l]

This would give you a list of lists, similar to what you started with except with floats instead of strings. If you want one flat list then you would use [float(y) for x in l for y in x].

It is important to note that static variables in functions get initialized at the first entry into that function and persist even after their call has been finished; in case of recursive functions the static variable gets initialized only once and persists as well over all recursive calls and even after the call of the function has been finished.

If the variable has been created outside a function, it means that the programmer is only able to use the variable in the source-file the variable has been declared.

To find first element in a sequence seq that matches a predicate:

next(x for x in seq if predicate(x))

Or _{(itertools.ifilter on Python 2)}:

next(filter(predicate, seq))

It raises StopIteration if there is none.

To return None if there is no such element:

next((x for x in seq if predicate(x)), None)

Or:

next(filter(predicate, seq), None)

Most web servers have a URL length limit (which is why there is an error code for "URI too long"), meaning there is a practical upper size. Find the default length limit for the most popular web servers, and use the largest of them as the field's maximum size; it should be more than enough.

It looks like you can add it to your ~/.my.cnf, but it needs to be added as an argument to the init-command flag in your [client] section, like so:

[client]
init-command='set autocommit=0'

I found the following on Stephen Gilbert's website - http://stephen.io/mediaqueries/. It includes additional devices and their orientations. Works for me!

Note: If you copy the code from his site, you'll want to edit it for extra spaces, depending on the editor you're using.

/*iPad in portrait & landscape*/
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) { /* STYLES GO HERE */}

/*iPad in landscape*/
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) { /* STYLES GO HERE */}

/*iPad in portrait*/
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) { /* STYLES GO HERE */ }

Include #include <boost/version.hpp>

std::cout << "Using Boost "     
          << BOOST_VERSION / 100000     << "."  // major version
          << BOOST_VERSION / 100 % 1000 << "."  // minor version
          << BOOST_VERSION % 100                // patch level
          << std::endl;

Possible output: Using Boost 1.75.0

Tested with Boost 1.51.0 to 1.63, 1.71.0 and 1.75.0:

You can get it at PuTTY: Extreme Makeover Using PuTTY Connection Manager.

The cssrewrite filter is not compatible with the @bundle notation for now. So you have two choices:

• Reference the CSS files in the web folder (after: console assets:install --symlink web)

  {% stylesheets '/bundles/myCompany/css/*." filter="cssrewrite" %}
  

• Use the cssembed filter to embed images in the CSS like this.

  {% stylesheets '@MyCompanyMyBundle/Resources/assets/css/*.css' filter="cssembed" %}
  

I found that some applications like Numbers in Mac ignore the double quote if there is space before it.

a, "b,c" doesn't work while a,"b,c" works.

It seems that bames53's answer can be extended to defining integer and non-integer constant values in namespace and class declarations even if they get included in multiple source files. It is not necessary to put the declarations in a header file but the definitions in a source file. The following example works for Microsoft Visual Studio 2015, for z/OS V2.2 XL C/C++ on OS/390, and for g++ (GCC) 8.1.1 20180502 on GNU/Linux 4.16.14 (Fedora 28). Note that the constants are declared/defined in only a single header file that gets included in multiple source files.

In foo.cc:

#include <cstdio>               // for puts

#include "messages.hh"
#include "bar.hh"
#include "zoo.hh"

int main(int argc, const char* argv[])
{
  puts("Hello!");
  bar();
  zoo();
  puts(Message::third);
  return 0;
}

In messages.hh:

#ifndef MESSAGES_HH
#define MESSAGES_HH

namespace Message {
  char const * const first = "Yes, this is the first message!";
  char const * const second = "This is the second message.";
  char const * const third = "Message #3.";
};

#endif

In bar.cc:

#include "messages.hh"
#include <cstdio>

void bar(void)
{
  puts("Wow!");
  printf("bar: %s\n", Message::first);
}

In zoo.cc:

#include <cstdio>
#include "messages.hh"

void zoo(void)
{
  printf("zoo: %s\n", Message::second);
}

In bar.hh:

#ifndef BAR_HH
#define BAR_HH

#include "messages.hh"

void bar(void);

#endif

In zoo.hh:

#ifndef ZOO_HH
#define ZOO_HH

#include "messages.hh"

void zoo(void);

#endif

This yields the following output:

Hello!
Wow!
bar: Yes, this is the first message!
zoo: This is the second message.
Message #3.

The data type char const * const means a constant pointer to an array of constant characters. The first const is needed because (according to g++) "ISO C++ forbids converting a string constant to 'char*'". The second const is needed to avoid link errors due to multiple definitions of the (then insufficiently constant) constants. Your compiler might not complain if you omit one or both of the consts, but then the source code is less portable.

Try this

@Override
public boolean onCreateOptionsMenu(Menu menu){
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.custom_actionbar, menu);
    menu.setGroupVisible(...);
}

There must be more to a Python dictionary than a table lookup on hash(). By brute experimentation I found this hash collision:

>>> hash(1.1)
2040142438
>>> hash(4504.1)
2040142438

Yet it doesn't break the dictionary:

>>> d = { 1.1: 'a', 4504.1: 'b' }
>>> d[1.1]
'a'
>>> d[4504.1]
'b'

Sanity check:

>>> for k,v in d.items(): print(hash(k))
2040142438
2040142438

Possibly there's another lookup level beyond hash() that avoids collisions between dictionary keys. Or maybe dict() uses a different hash.

(By the way, this in Python 2.7.10. Same story in Python 3.4.3 and 3.5.0 with a collision at hash(1.1) == hash(214748749.8).)

Based on the work of Denis Nek, it works well if the sum of item's widths is smaller than the size of the container. other than that, it will make the recyclerview non scrollable and only will show subset of the data.

to solve this problem, i modified the solution alittle so that it choose the min of the provided size and calculated size. see below:

package com.linkdev.gafi.adapters;

import android.content.Context;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;

import com.linkdev.gafi.R;

public class MyLinearLayoutManager extends LinearLayoutManager {

    public MyLinearLayoutManager(Context context, int orientation, boolean reverseLayout)    {
        super(context, orientation, reverseLayout);
        this.c = context;
    }


    private Context c;
    private int[] mMeasuredDimension = new int[2];


    @Override
    public void onMeasure(RecyclerView.Recycler recycler, RecyclerView.State state,
                          int widthSpec, int heightSpec) {
        final int widthMode = View.MeasureSpec.getMode(widthSpec);
        final int heightMode = View.MeasureSpec.getMode(heightSpec);
        final int widthSize = View.MeasureSpec.getSize(widthSpec);
        final int heightSize = View.MeasureSpec.getSize(heightSpec);



        int width = 0;
        int height = 0;
        for (int i = 0; i < getItemCount(); i++) {
            measureScrapChild(recycler, i,
                    View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),
                    View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),
                    mMeasuredDimension);

            if (getOrientation() == HORIZONTAL) {
                width = width + mMeasuredDimension[0];
                if (i == 0) {
                    height = mMeasuredDimension[1];
                }
            } else {
                height = height + mMeasuredDimension[1];
                if (i == 0) {
                    width = mMeasuredDimension[0];
                }
            }
        }


        switch (widthMode) {
            case View.MeasureSpec.EXACTLY:
                width = widthSize;
            case View.MeasureSpec.AT_MOST:
            case View.MeasureSpec.UNSPECIFIED:
        }

        switch (heightMode) {
            case View.MeasureSpec.EXACTLY:
                height = heightSize;
            case View.MeasureSpec.AT_MOST:
            case View.MeasureSpec.UNSPECIFIED:
        }

        int widthDesired = Math.min(widthSize,width);
        setMeasuredDimension(widthDesired, height);
    }

    private void measureScrapChild(RecyclerView.Recycler recycler, int position, int widthSpec,
                                   int heightSpec, int[] measuredDimension) {
        View view = recycler.getViewForPosition(position);
        if (view != null) {
            RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) view.getLayoutParams();
            int childWidthSpec = ViewGroup.getChildMeasureSpec(widthSpec,
                    getPaddingLeft() + getPaddingRight(), p.width);
            int childHeightSpec = ViewGroup.getChildMeasureSpec(heightSpec,
                    getPaddingTop() + getPaddingBottom(), p.height);
            view.measure(childWidthSpec, childHeightSpec);
            measuredDimension[0] = view.getMeasuredWidth() + p.leftMargin + p.rightMargin;
            measuredDimension[1] = view.getMeasuredHeight() + p.bottomMargin + p.topMargin;
            recycler.recycleView(view);
        }
    }}

Well, the window is the first thing that gets loaded into the browser. This window object has the majority of the properties like length, innerWidth, innerHeight, name, if it has been closed, its parents, and more.

What about the document object then? The document object is your html, aspx, php, or other document that will be loaded into the browser. The document actually gets loaded inside the window object and has properties available to it like title, URL, cookie, etc. What does this really mean? That means if you want to access a property for the window it is window.property, if it is document it is window.document.property which is also available in short as document.property.

That seems simple enough. But what happens once an IFRAME is introduced?

• See more at: http://eligeske.com/jquery/what-is-the-difference-between-document-and-window-objects-2/#sthash.CwLGOk9c.dpuf

using only grep:

grep -n "text to find" file.ext | grep -Po '^[^:]+'

As a general rule, when on Debian or Ubuntu and you're missing a development file (or any other file for that matter), use apt-file to figure out which package provides that file:

~ apt-file search openssl/bio.h
android-libboringssl-dev: /usr/include/android/openssl/bio.h
libssl-dev: /usr/include/openssl/bio.h
libwolfssl-dev: /usr/include/cyassl/openssl/bio.h
libwolfssl-dev: /usr/include/wolfssl/openssl/bio.h

A quick glance at each of the packages that are returned by the command, using apt show will tell you which among the packages is the one you're looking for:

~ apt show libssl-dev
Package: libssl-dev
Version: 1.1.1d-2
Priority: optional
Section: libdevel
Source: openssl
Maintainer: Debian OpenSSL Team <[email protected]>
Installed-Size: 8,095 kB
Depends: libssl1.1 (= 1.1.1d-2)
Suggests: libssl-doc
Conflicts: libssl1.0-dev
Homepage: https://www.openssl.org/
Tag: devel::lang:c, devel::library, implemented-in::TODO, implemented-in::c,
 protocol::ssl, role::devel-lib, security::cryptography
Download-Size: 1,797 kB
APT-Sources: http://ftp.fr.debian.org/debian unstable/main amd64 Packages
Description: Secure Sockets Layer toolkit - development files
 This package is part of the OpenSSL project's implementation of the SSL
 and TLS cryptographic protocols for secure communication over the
 Internet.
 .
 It contains development libraries, header files, and manpages for libssl
 and libcrypto.

N: There is 1 additional record. Please use the '-a' switch to see it

Try dont shut down iptables and open port 3306.

sudo iptables -A INPUT -i eth0 -p tcp -m tcp --dport 3306 -j ACCEPT

or sudo ufw allow 3306 if you use ufw.

check: netstat -lnp | grep mysql you should get sth like that:

cp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      2048/mysqld         
tcp6       0      0 :::33060                :::*                    LISTEN      2048/mysqld         
unix  2      [ ACC ]     STREAM     LISTENING     514961   2048/mysqld          /var/run/mysqld/mysqld.sock
unix  2      [ ACC ]     STREAM     LISTENING     514987   2048/mysqld          /var/run/mysqld/mysqlx.sock

if you have null then delete # before port = 3306 in cnf file.

**add the icon top button like this **

#copy_btn{_x000D_
 align-items: center;_x000D_
 position: absolute;_x000D_
 width: 30px;_x000D_
  height: 30px;_x000D_
     background-color: Transparent;_x000D_
    background-repeat:no-repeat;_x000D_
    border: none;_x000D_
    cursor:pointer;_x000D_
    overflow: hidden;_x000D_
    outline:none;_x000D_
}_x000D_
.icon_copy{_x000D_
 position: absolute;_x000D_
 padding: 0px;_x000D_
 top:0;_x000D_
 left: 0;_x000D_
width: 25px;_x000D_
  height: 35px;_x000D_
  _x000D_
}

<button id="copy_btn">_x000D_
_x000D_
                        <img class="icon_copy" src="./assest/copy.svg" alt="Copy Text">_x000D_
</button>

you first would need to convert string into datetime tuple, and then convert that datetime tuple to string, it would go like this:

lastconnection = datetime.strptime("21/12/2008", "%d/%m/%Y").strftime('%Y-%m-%d')

Not tested, but I think this will be close?

SELECT m1.id
FROM mytable m1
INNER JOIN mytable m2 ON m1.id < m2.id
GROUP BY m1.id
HAVING SUM(m1.cash) > 500
ORDER BY m1.id
LIMIT 1,2

The idea is to SUM up all the previous rows, get only the ones where the sum of the previous rows is > 500, then skip one and return the next one.

Doing it the easy way, this is a function for .bash_profile, it directly unzips the archive on current location, configure first your usual [url:path]. NOTE: With this function you avoid the clone operation, it gets directly from the remote repo.

gitss() {
    URL=[url:path]

    TMPFILE="`/bin/tempfile`"
    if [ "$1" = "" ]; then
        echo -e "Use: gitss repo [tree/commit]\n"
        return
    fi
    if [ "$2" = "" ]; then
        TREEISH="HEAD"
    else
        TREEISH="$2"
    fi
    echo "Getting $1/$TREEISH..."
    git archive --format=zip --remote=$URL/$1 $TREEISH > $TMPFILE && unzip $TMPFILE && echo -e "\nDone\n"
    rm $TMPFILE
}

Alias for .gitconfig, same configuration required (TAKE CARE executing the command inside .git projects, it ALWAYS jumps to the base dir previously as said here, until this is fixed I personally prefer the function

ss = !env GIT_TMPFILE="`/bin/tempfile`" sh -c 'git archive --format=zip --remote=[url:path]/$1 $2 \ > $GIT_TMPFILE && unzip $GIT_TMPFILE && rm $GIT_TMPFILE' -

I'm using the Hibernate 4.2.7.SP1 with Postgres 9.3 and following works for me:

@Entity
public class ConfigAttribute {
  @Lob
  public byte[] getValueBuffer() {
    return m_valueBuffer;
  }
}

as Oracle has no trouble with that, and for Postgres I'm using custom dialect:

public class PostgreSQLDialectCustom extends PostgreSQL82Dialect {

    @Override
    public SqlTypeDescriptor remapSqlTypeDescriptor(SqlTypeDescriptor sqlTypeDescriptor) {
    if (sqlTypeDescriptor.getSqlType() == java.sql.Types.BLOB) {
      return BinaryTypeDescriptor.INSTANCE;
    }
    return super.remapSqlTypeDescriptor(sqlTypeDescriptor);
  }
}

the advantage of this solution I consider, that I can keep hibernate jars untouched.

For more Postgres/Oracle compatibility issues with Hibernate, see my blog post.

I highly recommend using yarn upgrade-interactive to update React, or any Node project for that matter. It lists your packages, current version, the latest version, an indication of a Minor, Major, or Patch update compared to what you have, plus a link to the respective project.

You run it with yarn upgrade-interactive --latest, check out release notes if you want, go down the list with your arrow keys, choose which packages you want to upgrade by selecting with the space bar, and hit Enter to complete.

Npm-upgrade is ok but not as slick.

I suggest using the Segment analytics library and following our Angular quickstart guide. You’ll be able to track page visits and track user behavior actions with a single API. If you have an SPA, you can allow the RouterOutlet component to handle when the page renders and use ngOnInit to invoke page calls. The example below shows one way you could do this:

@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.css']
})
export class HomeComponent implements OnInit {
  ngOnInit() {
    window.analytics.page('Home');
  }
}

I’m the maintainer of https://github.com/segmentio/analytics-angular. With Segment, you’ll be able to switch different destinations on-and-off by the flip of a switch if you are interested in trying multiple analytics tools (we support over 250+ destinations) without having to write any additional code.

Works fine for me in 5.0.27

I just get a warning (not an error) that the table exists;

input[type=text]

or, to restrict to text inputs inside forms

form input[type=text]

or, to restrict further to a certain form, assuming it has id myForm

#myForm input[type=text]

Notice: This is not supported by IE6, so if you want to develop for IE6 either use IE7.js (as Yi Jiang suggested) or start adding classes to all your text inputs.

Reference: http://www.w3.org/TR/CSS2/selector.html#attribute-selectors

Because it is specified that default attribute values may not always be selectable with attribute selectors, one could try to cover other cases of markup for which text inputs are rendered:

input:not([type]), // type attribute not present in markup
input[type=""], // type attribute present, but empty
input[type=text] // type is explicitly defined as 'text'

Still this leaves the case when the type is defined, but has an invalid value and that still falls back to type="text". To cover that we could use select all inputs that are not one of the other known types

input:not([type=button]):not([type=password]):not([type=submit])...

But this selector would be quite ridiculous and also the list of possible types is growing with new features being added to HTML.

Notice: the :not pseudo-class is only supported starting with IE9.

This might be an old question, but there's an alternate method you can use that no one has mentioned. It's possible to specify the password directly in the connection URI. The documentation can be found here, alternatively here.

You can provide your username and password directly in the connection URI provided to psql:

# postgresql://[user[:password]@][netloc][:port][/dbname][?param1=value1&...]
psql postgresql://username:password@localhost:5432/mydb

You can detect the orientation change, but I don't think you can prevent it.

• https://developer.apple.com/library/content/documentation/AppleApplications/Reference/SafariWebContent/HandlingEvents/HandlingEvents.html
• http://articles.sitepoint.com/article/iphone-development-12-tips/2

window.location = mypage.href is a direct command for the browser to dump it's contents and start loading up some more. So for better clarification, here's what's happening in your PHP script:

echo '<script type="text/javascript">'; 
echo 'alert("review your answer");'; 
echo 'window.location = "index.php";';
echo '</script>';

1) prepare to accept a modification or addition to the current Javascript cache. 2) show the alert 3) dump everything in browser memory and get ready for some more (albeit an older method of loading a new URL (AND NOTICE that there are no "\n" (new line) indicators between the lines and is therefore causing some havoc in the JS decoder.

Let me suggest that you do this another way..

echo '<script type="text/javascript">\n'; 
echo 'alert("review your answer");\n'; 
echo 'document.location.href = "index.php";\n';
echo '</script>\n';

1) prepare to accept a modification or addition to the current Javascript cache. 2) show the alert 3) dump everything in browser memory and get ready for some more (in a better fashion than before) And WOW - it all works because the JS decoder can see that each command is anow a new line.

Best of luck!

Its basically a shorthand. You can write public string Name { get; set; } like in many examples, but you can also write it:

private string _name;

public string Name
{
    get { return _name; }
    set { _name = value ; } // value is a special keyword here
}

Why it is used? It can be used to filter access to a property, for example you don't want names to include numbers.

Let me give you an example:

private class Person {
    private int _age;  // Person._age = 25; will throw an error
    public int Age{
        get { return _age; }  // example: Console.WriteLine(Person.Age);
        set { 
            if ( value >= 0) {
                _age = value; }  // valid example: Person.Age = 25;
        }
    }
}

Officially its called Auto-Implemented Properties and its good habit to read the (programming guide). I would also recommend tutorial video C# Properties: Why use "get" and "set".

Try like this

#testdiv{
  border-left:1px solid;

}

So I used to use the approaches described above, but I kind of prefer the agent to die when my last bash session ends. This is a bit longer than the other solutions, but its my preferred approach. The basic idea is that the first bash session starts the ssh-agent. Then each additional bash session checks for the config file (~/.ssh/.agent_env). If that is there and there is a session running then source the environment and create a hardlink to the socket file in /tmp (needs to be on the same filesystem as the original socket file). As bash sessions shut down each deletes its own hardlink. The last session to close will find that the hardlinks have 2 links (the hardlink and the original), removal of the processes own socket and killing of the process will result in 0, leaving a clean environment after the last bash session closes.

# Start ssh-agent to keep you logged in with keys, use `ssh-add` to log in
agent=`pgrep ssh-agent -u $USER` # get only your agents           
if [[ "$agent" == "" || ! -e ~/.ssh/.agent_env ]]; then
    # if no agents or environment file is missing create a new one
    # remove old agents / environment variable files
    kill $agent running
    rm ~/.ssh/.agent_env 

    # restart
    eval `ssh-agent` 
    echo 'export SSH_AUTH_SOCK'=$SSH_AUTH_SOCK >> ~/.ssh/.agent_env             
    echo 'export SSH_AGENT_PID'=$SSH_AGENT_PID >> ~/.ssh/.agent_env             
fi

# create our own hardlink to the socket (with random name)           
source ~/.ssh/.agent_env                                                    
MYSOCK=/tmp/ssh_agent.${RANDOM}.sock                                        
ln -T $SSH_AUTH_SOCK $MYSOCK                                                
export SSH_AUTH_SOCK=$MYSOCK                                                

end_agent()                                                                     
{
    # if we are the last holder of a hardlink, then kill the agent
    nhard=`ls -l $SSH_AUTH_SOCK | awk '{print $2}'`                             
    if [[ "$nhard" -eq 2 ]]; then                                               
        rm ~/.ssh/.agent_env                                                    
        ssh-agent -k                                                            
    fi                                                                          
    rm $SSH_AUTH_SOCK                                                           
}                                                                               
trap end_agent EXIT                                                             
set +x              

You can use svn+ssh:, and then it's based on access control to the repository at the given location.

This is how I host a project group repository at my uni, where I can't set up anything else. Just having a directory that the group owns, and running svn-admin (or whatever it was) in there means that I didn't need to do any configuration.

If you don't want to group, then use the following method:

db.collection.aggregate( [ { $match : { score : { $gt : 70, $lte : 90 } } }, { $count: 'count' } ] );

Its based on from which file you are trying to access those files.

If it is in the same folder where your working project file is, then you can use just the file name. no need of path.

If it is in the another folder which is under the same parent folder of your working project file then you can use location like in the following /javascript/sample.js

In your example if you are trying to access your js file from your html file you can use the following location

../javascript/sample.js

the prefix../ will go to the parent folder of the file(Folder upward journey)

Lodash has a simple Dictionary implementation and has good TypeScript support

Install Lodash:

npm install lodash @types/lodash --save

Import and usage:

import { Dictionary } from "lodash";
let properties : Dictionary<string> = {
    "key": "value"        
}
console.log(properties["key"])

Use following syntax to convert a time to AM PM format.

Replace the field name with the value in following query.

select CONVERT(varchar(15),CAST('17:30:00.0000000' AS TIME),100)

You have a JSON string, not an object. Tell jQuery that you expect a JSON response and it will parse it for you. Either use $.getJSON instead of $.get, or pass the dataType argument to $.get:

$.get(
    'index.php?r=admin/post/ajax',
    {"parentCatId":parentCatId},
    function(data){                     
        $.each(data, function(key, value){
            console.log(key + ":" + value)
        })
    },
    'json'
);

Travis CI alternative

Another answer since Francesco Borzi's didn't work for me.

Add this to your travis.yml:

addons:
  chrome: stable

before_script:
  - LATEST_CHROMEDRIVER_VERSION=`curl -s "https://chromedriver.storage.googleapis.com/LATEST_RELEASE"`
  - curl "https://chromedriver.storage.googleapis.com/${LATEST_CHROMEDRIVER_VERSION}/chromedriver_linux64.zip" -O
  - unzip chromedriver_linux64.zip -d ~/bin

Many thanks and credit to tagliala on github:

https://github.com/diowa/ruby2-rails5-bootstrap-heroku/commit/6ba95f33f922895090d3fabc140816db67b09672

I just wanted to answer that question for Cocoa Swift programmers. This function returns NSImage with new size. You can use that function like this.

        let sizeChangedImage = changeImageSize(image, ratio: 2)






 // changes image size

    func changeImageSize (image: NSImage, ratio: CGFloat) -> NSImage   {

    // getting the current image size
    let w = image.size.width
    let h = image.size.height

    // calculating new size
    let w_new = w / ratio 
    let h_new = h / ratio 

    // creating size constant
    let newSize = CGSizeMake(w_new ,h_new)

    //creating rect
    let rect  = NSMakeRect(0, 0, w_new, h_new)

    // creating a image context with new size
    let newImage = NSImage.init(size:newSize)



    newImage.lockFocus()

        // drawing image with new size in context
        image.drawInRect(rect)

    newImage.unlockFocus()


    return newImage

}

Here is a bare bones version:

Let's say that you have a date in Cell A1 in the format you described. For example: 19760210.

Then this formula will give you the date you want:

=DATE(LEFT(A1,4),MID(A1,5,2),RIGHT(A1,2)).

On my system (Excel 2010) it works with strings or floats.

Here is a slightly different approach to read-only properties, which perhaps should be called write-once properties since they do have to get initialized, don't they? For the paranoid among us who worry about being able to modify properties by accessing the object's dictionary directly, I've introduced "extreme" name mangling:

from uuid import uuid4

class ReadOnlyProperty:
    def __init__(self, name):
        self.name = name
        self.dict_name = uuid4().hex
        self.initialized = False

    def __get__(self, instance, cls):
        if instance is None:
            return self
        else:
            return instance.__dict__[self.dict_name]

    def __set__(self, instance, value):
        if self.initialized:
            raise AttributeError("Attempt to modify read-only property '%s'." % self.name)
        instance.__dict__[self.dict_name] = value
        self.initialized = True

class Point:
    x = ReadOnlyProperty('x')
    y = ReadOnlyProperty('y')
    def __init__(self, x, y):
        self.x = x
        self.y = y

if __name__ == '__main__':
    try:
        p = Point(2, 3)
        print(p.x, p.y)
        p.x = 9
    except Exception as e:
        print(e)

You can use a bucket policy to give anonymous users full read access to your objects. Depending on whether you need them to LIST or just perform a GET, you'll want to tweak this. (I.e. permissions for listing the contents of a bucket have the action set to "s3:ListBucket").

http://docs.aws.amazon.com/AmazonS3/latest/dev/AccessPolicyLanguage_UseCases_s3_a.html

Your policy will look something like the following. You can use the S3 console at http://aws.amazon.com/console to upload it.

 {
  "Version":"2008-10-17",
  "Statement":[{
    "Sid":"AddPerm",
      "Effect":"Allow",
      "Principal": {
            "AWS": "*"
         },
      "Action":["s3:GetObject"],
      "Resource":["arn:aws:s3:::bucket/*"
      ]
    }
  ]
}

If you're truly opening up your objects to the world, you'll want to look into setting up CloudWatch rules on your billing so you can shut off permissions to your objects if they become too popular.

When you use git push origin :staleStuff, it automatically removes origin/staleStuff, so when you ran git remote prune origin, you have pruned some branch that was removed by someone else. It's more likely that your co-workers now need to run git prune to get rid of branches you have removed.

So what exactly git remote prune does? Main idea: local branches (not tracking branches) are not touched by git remote prune command and should be removed manually.

Now, a real-world example for better understanding:

You have a remote repository with 2 branches: master and feature. Let's assume that you are working on both branches, so as a result you have these references in your local repository (full reference names are given to avoid any confusion):

• refs/heads/master (short name master)
• refs/heads/feature (short name feature)
• refs/remotes/origin/master (short name origin/master)
• refs/remotes/origin/feature (short name origin/feature)

Now, a typical scenario:

1. Some other developer finishes all work on the feature, merges it into master and removes feature branch from remote repository.
2. By default, when you do git fetch (or git pull), no references are removed from your local repository, so you still have all those 4 references.
3. You decide to clean them up, and run git remote prune origin.
4. git detects that feature branch no longer exists, so refs/remotes/origin/feature is a stale branch which should be removed.
5. Now you have 3 references, including refs/heads/feature, because git remote prune does not remove any refs/heads/* references.

It is possible to identify local branches, associated with remote tracking branches, by branch.<branch_name>.merge configuration parameter. This parameter is not really required for anything to work (probably except git pull), so it might be missing.

(updated with example & useful info from comments)

"Dangerous" and "Security risk" are not the first things that spring to mind when people mention iframes … but they can be used in clickjacking attacks.

For me it caused by installing react-native-vector-icons and linking by running the react-native link react-native-vector-icons command.

I just unlinked the react-native-vector-icons by following commands

1. react-native unlink react-native-vector-icons
2. cd ios
3. pod install
4. cd ..
5. react-native run-ios

As I already installed an other icon library.

You can do like this:

INSERT INTO DENI/FRIEN01P 
SELECT 
   RCRDID+112,
   PROFESION,
   NAME,
   SURNAME,
   AGE, 
   RCRDTYP, 
   RCRDLCU, 
   RCRDLCT, 
   RCRDLCD 
FROM 
   FRIEN01P      

There instead of 112 you should put a number of the maximum id in table DENI/FRIEN01P.

try below query it's work

SELECT * FROM `my_table` WHERE id != (SELECT id From my_table LIMIT 1)

Hope this will help

Here's another way to do it without using external libraries:

import java.io.File;
import java.io.FileReader;
import java.io.IOException;

public String readFile(String filename)
{
    String content = null;
    File file = new File(filename); // For example, foo.txt
    FileReader reader = null;
    try {
        reader = new FileReader(file);
        char[] chars = new char[(int) file.length()];
        reader.read(chars);
        content = new String(chars);
        reader.close();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if(reader != null){
            reader.close();
        }
    }
    return content;
}

Yes you can do.

Syntax for CAST:

CAST ( expression AS data_type [ ( length ) ] )

For example:

CAST(MyColumn AS Varchar(10))

CAST in SELECT Statement:

Select CAST(MyColumn AS Varchar(10)) AS MyColumn
FROM MyTable

See for more information CAST and CONVERT (Transact-SQL)

Try This, change

$config['base_url'] = 'http://mywebsite.cl/';

to

$config['base_url'] = 'http://www.mywebsite.cl/';

Some provider auto add www , https , etc to your url, most of the times, this causes this issue

Two references refer to same object as long as there is no reassignment. 

Any updates in the same object won't make the references to new memory since it still is in same memory. Here are few examples :

    a = "first string"
    b = a



    b.upcase! 
    => FIRST STRING
    a
    => FIRST STRING

    b = "second string"


a
    => FIRST STRING
    hash = {first_sub_hash: {first_key: "first_value"}}
first_sub_hash = hash[:first_sub_hash]
first_sub_hash[:second_key] = "second_value"

    hash
    => {first_sub_hash: {first_key: "first_value", second_key: "second_value"}}

    def change(first_sub_hash)
    first_sub_hash[:third_key] = "third_value"
    end

    change(first_sub_hash)

    hash
    =>  {first_sub_hash: {first_key: "first_value", second_key: "second_value", third_key: "third_value"}}

Try this

$date = Carbon::parse(date_format($youttimestring,'d/m/Y H:i:s'));
echo $date;

Or maybe and that is prob it

<img src="path" onclick="this.src='path'">

If using httplib.HTTPSConnection:

Please take a look at:

Changed in version 2.7.9:

This class now performs all the necessary certificate and hostname checks by default. To revert to the previous, unverified, behavior ssl._create_unverified_context() can be passed to the context parameter. You can use:

if hasattr(ssl, '_create_unverified_context'):
  ssl._create_default_https_context = ssl._create_unverified_context

Hi you dont have to write all the routes just follow the conventions https://laravel.com/docs/5.8/controllers check : Actions Handled By Resource Controller section

Since HTML forms can't make PUT, PATCH, or DELETE requests, you will need to add a hidden _method. When posting a data from n laravel you have to use,

<form action="/foo/bar" method="POST">
@method('PUT')
</form>

Somewhere in your controller (often the last line is a good place), put

console.log($scope);

If you want to see an inner/implicit scope, say inside an ng-repeat, something like this will work.

<li ng-repeat="item in items">
   ...
   <a ng-click="showScope($event)">show scope</a>
</li>

Then in your controller

function MyCtrl($scope) {
    ...
    $scope.showScope = function(e) {
        console.log(angular.element(e.srcElement).scope());
    }
}

Note that above we define the showScope() function in the parent scope, but that's okay... the child/inner/implicit scope can access that function, which then prints out the scope based on the event, and hence the scope associated with the element that fired the event.

@jm-'s suggestion also works, but I don't think it works inside a jsFiddle. I get this error on jsFiddle inside Chrome:

> angular.element($0).scope()
ReferenceError: angular is not defined

For a seaborn.heatmap, you can rotate these using (based on @Aman's answer)

pandas_frame = pd.DataFrame(data, index=names, columns=names)
heatmap = seaborn.heatmap(pandas_frame)
loc, labels = plt.xticks()
heatmap.set_xticklabels(labels, rotation=45)
heatmap.set_yticklabels(labels[::-1], rotation=45) # reversed order for y

Ultimately they both produce the same HTML but Html.TextBoxFor() is strongly typed where as Html.TextBox isn't.

1:  @Html.TextBox("Name")
2:  Html.TextBoxFor(m => m.Name)

will both produce

<input id="Name" name="Name" type="text" />

So what does that mean in terms of use?

Generally two things:

1. The typed TextBoxFor will generate your input names for you. This is usually just the property name but for properties of complex types can include an underscore such as 'customer_name'
2. Using the typed TextBoxFor version will allow you to use compile time checking. So if you change your model then you can check whether there are any errors in your views.

It is generally regarded as better practice to use the strongly typed versions of the HtmlHelpers that were added in MVC2.

Have a look at the AlertDialog docs. As it states, to add a custom view to your alert dialog you need to find the frameLayout and add your view to that like so:

FrameLayout fl = (FrameLayout) findViewById(android.R.id.custom);
fl.addView(myView, new LayoutParams(MATCH_PARENT, WRAP_CONTENT));

Most likely you are going to want to create a layout xml file for your view, and inflate it:

LayoutInflater inflater = getLayoutInflater();
View twoEdits = inflater.inflate(R.layout.my_layout, f1, false);

All other answers on this question didn't hit upon the key point.

Assume we have a table:

CREATE TABLE `table` (
 `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
 `value` int(10) unsigned NOT NULL,
 PRIMARY KEY (`id`),
 KEY `value` (`value`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8

And have 10 rows with both id and value from 1 to 10:

INSERT INTO `table`(`id`, `value`) VALUES (1, 1),(2, 2),(3, 3),(4, 4),(5, 5),(6, 6),(7, 7),(8, 8),(9, 9),(10, 10);

Try the following 2 queries:

SELECT `value` v FROM `table` WHERE `value`>5; -- Get 5 rows
SELECT `value` v FROM `table` HAVING `value`>5; -- Get 5 rows

You will get exactly the same results, you can see the HAVING clause can work without GROUP BY clause.

Here's the difference:

SELECT `value` v FROM `table` WHERE `v`>5;

Error #1054 - Unknown column 'v' in 'where clause'

SELECT `value` v FROM `table` HAVING `v`>5; -- Get 5 rows

WHERE clause allows a condition to use any table column, but it cannot use aliases or aggregate functions. HAVING clause allows a condition to use a selected (!) column, alias or an aggregate function.

This is because WHERE clause filters data before select, but HAVING clause filters resulting data after select.

So put the conditions in WHERE clause will be more efficient if you have many many rows in a table.

Try EXPLAIN to see the key difference:

EXPLAIN SELECT `value` v FROM `table` WHERE `value`>5;
+----+-------------+-------+-------+---------------+-------+---------+------+------+--------------------------+
| id | select_type | table | type  | possible_keys | key   | key_len | ref  | rows | Extra                    |
+----+-------------+-------+-------+---------------+-------+---------+------+------+--------------------------+
|  1 | SIMPLE      | table | range | value         | value | 4       | NULL |    5 | Using where; Using index |
+----+-------------+-------+-------+---------------+-------+---------+------+------+--------------------------+

EXPLAIN SELECT `value` v FROM `table` having `value`>5;
+----+-------------+-------+-------+---------------+-------+---------+------+------+-------------+
| id | select_type | table | type  | possible_keys | key   | key_len | ref  | rows | Extra       |
+----+-------------+-------+-------+---------------+-------+---------+------+------+-------------+
|  1 | SIMPLE      | table | index | NULL          | value | 4       | NULL |   10 | Using index |
+----+-------------+-------+-------+---------------+-------+---------+------+------+-------------+

You can see either WHERE or HAVING uses index, but the rows are different.

You can use a $ sign like:

OUTPUT=$(expression)

Check any syntax problem in the XMl file. I've found this error when working on xsl/xsp with Cocoon and I define a variable using a non-existing node or something like that. Check the whole XML.

Further to the answer from ktbos:

I modified the mysqld.cnf file and mysql failed to start. It turned out that I was modifying the wrong file!

So be sure the file you modify contains segment tags like [mysqld_safe] and [mysqld]. Under the latter I did as suggested and added the line:

validate_password_policy=LOW

This worked perfectly to resolve my issue of not requiring special characters within the password.

You can do it this way:

=IF(E9>21,"Text 1",IF(AND(E9>=5,E9<=21),"Test 2","Text 3"))

Note I assume you meant >= and <= here since your description skipped the values 5 and 21, but you can adjust these inequalities as needed.

Or you can do it this way:

=IF(E9>21,"Text 1",IF(E9<5,"Text 3","Text 2"))

You can use the following line:

head -n 10 /path/to/file | grep [...]

I found a better way to do it now:

def status=(value) 
  self[:status] = 'P' 
end 

In Ruby a method call is allowed to have no parentheses, therefore I should name the local variable into something else, otherwise Ruby will recognize it as a method call.

You can use jquery's load function here.

$("#your_element_id").load("file_name.html");

If you need more info, here is the link.

Every odd number when divided by two leaves remainder as 1 and every even number when divided by zero leaves a zero as remainder. Hence we can use this code

  function checker(number)  {
   return number%2==0?even:odd;
   }

Obviously you know how this defeats the whole purpose of a SecureString, but I'll restate it anyway.

If you want a one-liner, try this: (.NET 4 and above only)

string password = new System.Net.NetworkCredential(string.Empty, securePassword).Password;

Where securePassword is a SecureString.

Thanks @gniourf_gniourf for detailed comments on my combination of best worlds so far. Sorry for posting code not thoroughly designed and tested. Here is a better try.

# join with separator
join_ws() { local d=$1 s=$2; shift 2 && printf %s "$s${@/#/$d}"; }

This beauty by conception is

• (still) 100% pure bash ( thanks for explicitly pointing out that printf is a builtin as well. I wasn't aware about this before ... )
• works with multi-character delimiters
• more compact and more complete and this time carefully thought over and long-term stress-tested with random substrings from shell scripts amongst others, covering use of shell special characters or control characters or no characters in both separator and / or parameters, and edge cases, and corner cases and other quibbles like no arguments at all. That doesn't guarantee there is no more bug, but it will be a little harder challenge to find one. BTW, even the currently top voted answers and related suffer from such things like that -e bug ...

Additional examples:

$ join_ws '' a b c
abc
$ join_ws ':' {1,7}{A..C}
1A:1B:1C:7A:7B:7C
$ join_ws -e -e
-e
$ join_ws $'\033[F' $'\n\n\n'  1.  2.  3.  $'\n\n\n\n'
3.
2.
1.
$ join_ws $ 
$

You should be able to use the DataTable.Select() method. You can us it like this.

if(myDataTable.Select("Author = '" + AuthorName.Replace("'","''") + '").Length > 0)
    ...

The Select() funciton returns an array of DataRows for the results matching the where statement.

Try This

/^(19[0-9]{2}|2[0-9]{3})\-(0[1-9]|1[0-2])\-(0[1-9]|1[0-9]|2[0-9]|3[0-1])((T|\s)(0[0-9]{1}|1[0-9]{1}|2[0-3]{1})\:(0[0-9]{1}|1[0-9]{1}|2[0-9]{1}|3[0-9]{1}|4[0-9]{1}|5[0-9]{1})\:(0[0-9]{1}|1[0-9]{1}|2[0-9]{1}|3[0-9]{1}|4[0-9]{1}|5[0-9]{1})((\+|\.)[\d+]{4,8})?)?$/

this regular expression valid for :

• 2017-01-01T00:00:00+0000
• 2017-01-01 00:00:00+00:00
• 2017-01-01T00:00:00+00:00
• 2017-01-01 00:00:00+0000
• 2017-01-01

Remember that this will be cover all case of date and date time with (-) character

Thanks for your replies. I have already solved my problem. Suppose I have my pages under http://www.yoursite.com/html, the following .htaccess rules apply.

<IfModule mod_rewrite.c>
   RewriteEngine On
   RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /html/(.*).html\ HTTP/
   RewriteRule .* http://localhost/html/%1 [R=301,L]

   RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /html/(.*)\ HTTP/
   RewriteRule .* %1.html [L]
</IfModule>

Basically, you have two major choices:

• You can generate the identifier yourself, in which case you can use an assigned identifier.
• You can use the @GeneratedValue annotation and Hibernate will assign the identifier for you.

For the generated identifiers you have two options:

• UUID identifiers.
• Numerical identifiers.

For numerical identifiers you have three options:

• IDENTITY
• SEQUENCE
• TABLE

IDENTITY is only a good choice when you cannot use SEQUENCE (e.g. MySQL) because it disables JDBC batch updates.

SEQUENCE is the preferred option, especially when used with an identifier optimizer like pooled or pooled-lo.

TABLE is to be avoided since it uses a separate transaction to fetch the identifier and row-level locks which scales poorly.

One shouldn't use the using directive at the global scope, especially in headers. However, there are situations where it is appropriate even in a header file:

template <typename FloatType> inline
FloatType compute_something(FloatType x)
{
    using namespace std; // No problem since scope is limited
    return exp(x) * (sin(x) - cos(x * 2) + sin(x * 3) - cos(x * 4));
}

This is better than explicit qualification (std::sin, std::cos...), because it is shorter and has the ability to work with user defined floating point types (via argument-dependent lookup (ADL)).

Thread.wait() call make sense inside a code that synchronizes on Thread.class object. I don't think it's what you meant.
You ask

How can I make a thread wait until it will be notified?

You can make only your current thread wait. Any other thread can be only gently asked to wait, if it agree.
If you want to wait for some condition, you need a lock object - Thread.class object is a very bad choice - it is a singleton AFAIK so synchronizing on it (except for Thread static methods) is dangerous.
Details for synchronization and waiting are already explained by Tom Hawtin. java.lang.IllegalMonitorStateException means you are trying to wait on object on which you are not synchronized - it's illegal to do so.

Klocwork has a static analysis tool for C#: http://www.klocwork.com

First

pip install pymysql

Then put the code below into __init__.py (projectname/__init__.py)

import pymysql
pymysql.install_as_MySQLdb()

My environment is (python3.5, django1.10) and this solution works for me!

Hope this helps!!

string.Split() returns an array - you can convert it to a list using ToList():

listStrLineElements = line.Split(',').ToList();

Note that you need to import System.Linq to access the .ToList() function.

I have used this:

DecimalFormat numFormat = new DecimalFormat("00000");
System.out.println("Code format: "+numFormat.format(123));

Result: 00123

I hope you find it useful!

Your css is fine, but I think it's not applying on divs. Just write simple class name and then try. You can check it at Jsfiddle.

.left {
  float: left;
  width: 125px;
  text-align: right;
  margin: 2px 10px;
  display: inline;
}

.right {
  float: left;
  text-align: left;
  margin: 2px 10px;
  display: inline;
}

You are touching multiple issues here:

1) A stack trace should never be visibile to end users (for user experience and security purposes)

Yes, it should be accessible to diagnose problems of end-users, but end-user should not see them for two reasons:

• They are very obscure and unreadable, the application will look very user-unfriendly.
• Showing a stack trace to end-user might introduce a potential security risk. Correct me if I'm wrong, PHP actually prints function parameters in stack trace - brilliant, but very dangerous - if you would you get exception while connecting to the database, what are you likely to in the stacktrace?

2) Generating a stack trace is a relatively expensive process (though unlikely to be an issue in most 'exception'al circumstances)

Generating a stack trace happens when the exception is being created/thrown (that's why throwing an exception comes with a price), printing is not that expensive. In fact you can override Throwable#fillInStackTrace() in your custom exception effectively making throwing an exception almost as cheap as a simple GOTO statement.

3) Many logging frameworks will print the stack trace for you (ours does not and no, we can't change it easily)

Very good point. The main issue here is: if the framework logs the exception for you, do nothing (but make sure it does!) If you want to log the exception yourself, use logging framework like Logback or Log4J, to not put them on the raw console because it is very hard to control it.

With logging framework you can easily redirect stack traces to file, console or even send them to a specified e-mail address. With hardcoded printStackTrace() you have to live with the sysout.

4) Printing the stack trace does not constitute error handling. It should be combined with other information logging and exception handling.

Again: log SQLException correctly (with the full stack trace, using logging framework) and show nice: "Sorry, we are currently not able to process your request" message. Do you really think the user is interested in the reasons? Have you seen StackOverflow error screen? It's very humorous, but does not reveal any details. However it ensures the user that the problem will be investigated.

But he will call you immediately and you need to be able to diagnose the problem. So you need both: proper exception logging and user-friendly messages.

To wrap things up: always log exceptions (preferably using logging framework), but do not expose them to the end-user. Think carefully and about error-messages in your GUI, show stack traces only in development mode.

I wrote this function to solve this problem:

// this is for adding the ordinal suffix, turning 1, 2 and 3 into 1st, 2nd and 3rd
Number.prototype.addSuffix=function(){
    var n=this.toString().split('.')[0];
    var lastDigits=n.substring(n.length-2);
    //add exception just for 11, 12 and 13
    if(lastDigits==='11' || lastDigits==='12' || lastDigits==='13'){
        return this+'th';
    }
    switch(n.substring(n.length-1)){
        case '1': return this+'st';
        case '2': return this+'nd';
        case '3': return this+'rd';
        default : return this+'th';
    }
};

With this you can just put .addSuffix() to any number and it will result in what you want. For example:

var number=1234;
console.log(number.addSuffix());
// console will show: 1234th

Swift 4, Swift 3

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "MySegueId" {
        if let nextViewController = segue.destination as? NextViewController {
                nextViewController.valueOfxyz = "XYZ" //Or pass any values
                nextViewController.valueOf123 = 123
        }
    }
}

I couldn't find a direct GDrive/DropBox solution. I'm also surprised there's no lazy solution for a free ftp host. Windows azure offers a ftp server "FTP connector" that's fairly easy to turn on at: https://portal.azure.com

You can get a free 1 GB account by selecting "View All" machine types during your deployment.

This works:

''.join(('a', 'b', 'c', 'd', 'g', 'x', 'r', 'e'))

It will produce:

'abcdgxre'

You can also use a delimiter like a comma to produce:

'a,b,c,d,g,x,r,e'

By using:

','.join(('a', 'b', 'c', 'd', 'g', 'x', 'r', 'e'))

Typecast the envelope to SoapPrimitive:

SoapPrimitive result = (SoapPrimitive)envelope.getResponse();
String strRes = result.toString();

and it will work.

I just learned the comm command from this thread, but wanted to add something extra: if the files are not sorted, and you don't want to touch the original files, you can pipe the outptut of the sort command. This leaves the original files intact. Works in bash, I can't say about other shells.

comm -1 -2 <(sort file1) <(sort file2)

This can be extended to compare command output, instead of files:

comm -1 -2 <(ls /dir1 | sort) <(ls /dir2 | sort)

9.5 and newer:

PostgreSQL 9.5 and newer support INSERT ... ON CONFLICT (key) DO UPDATE (and ON CONFLICT (key) DO NOTHING), i.e. upsert.

Comparison with ON DUPLICATE KEY UPDATE.

Quick explanation.

For usage see the manual - specifically the conflict_action clause in the syntax diagram, and the explanatory text.

Unlike the solutions for 9.4 and older that are given below, this feature works with multiple conflicting rows and it doesn't require exclusive locking or a retry loop.

The commit adding the feature is here and the discussion around its development is here.

If you're on 9.5 and don't need to be backward-compatible you can stop reading now.

9.4 and older:

PostgreSQL doesn't have any built-in UPSERT (or MERGE) facility, and doing it efficiently in the face of concurrent use is very difficult.

This article discusses the problem in useful detail.

In general you must choose between two options:

• Individual insert/update operations in a retry loop; or
• Locking the table and doing batch merge

Individual row retry loop

Using individual row upserts in a retry loop is the reasonable option if you want many connections concurrently trying to perform inserts.

The PostgreSQL documentation contains a useful procedure that'll let you do this in a loop inside the database. It guards against lost updates and insert races, unlike most naive solutions. It will only work in READ COMMITTED mode and is only safe if it's the only thing you do in the transaction, though. The function won't work correctly if triggers or secondary unique keys cause unique violations.

This strategy is very inefficient. Whenever practical you should queue up work and do a bulk upsert as described below instead.

Many attempted solutions to this problem fail to consider rollbacks, so they result in incomplete updates. Two transactions race with each other; one of them successfully INSERTs; the other gets a duplicate key error and does an UPDATE instead. The UPDATE blocks waiting for the INSERT to rollback or commit. When it rolls back, the UPDATE condition re-check matches zero rows, so even though the UPDATE commits it hasn't actually done the upsert you expected. You have to check the result row counts and re-try where necessary.

Some attempted solutions also fail to consider SELECT races. If you try the obvious and simple:

-- THIS IS WRONG. DO NOT COPY IT. It's an EXAMPLE.

BEGIN;

UPDATE testtable
SET somedata = 'blah'
WHERE id = 2;

-- Remember, this is WRONG. Do NOT COPY IT.

INSERT INTO testtable (id, somedata)
SELECT 2, 'blah'
WHERE NOT EXISTS (SELECT 1 FROM testtable WHERE testtable.id = 2);

COMMIT;

then when two run at once there are several failure modes. One is the already discussed issue with an update re-check. Another is where both UPDATE at the same time, matching zero rows and continuing. Then they both do the EXISTS test, which happens before the INSERT. Both get zero rows, so both do the INSERT. One fails with a duplicate key error.

This is why you need a re-try loop. You might think that you can prevent duplicate key errors or lost updates with clever SQL, but you can't. You need to check row counts or handle duplicate key errors (depending on the chosen approach) and re-try.

Please don't roll your own solution for this. Like with message queuing, it's probably wrong.

Bulk upsert with lock

Sometimes you want to do a bulk upsert, where you have a new data set that you want to merge into an older existing data set. This is vastly more efficient than individual row upserts and should be preferred whenever practical.

In this case, you typically follow the following process:

• CREATE a TEMPORARY table

• COPY or bulk-insert the new data into the temp table

• LOCK the target table IN EXCLUSIVE MODE. This permits other transactions to SELECT, but not make any changes to the table.

• Do an UPDATE ... FROM of existing records using the values in the temp table;

• Do an INSERT of rows that don't already exist in the target table;

• COMMIT, releasing the lock.

For example, for the example given in the question, using multi-valued INSERT to populate the temp table:

BEGIN;

CREATE TEMPORARY TABLE newvals(id integer, somedata text);

INSERT INTO newvals(id, somedata) VALUES (2, 'Joe'), (3, 'Alan');

LOCK TABLE testtable IN EXCLUSIVE MODE;

UPDATE testtable
SET somedata = newvals.somedata
FROM newvals
WHERE newvals.id = testtable.id;

INSERT INTO testtable
SELECT newvals.id, newvals.somedata
FROM newvals
LEFT OUTER JOIN testtable ON (testtable.id = newvals.id)
WHERE testtable.id IS NULL;

COMMIT;

Related reading

• UPSERT wiki page
• UPSERTisms in Postgres
• Insert, on duplicate update in PostgreSQL?
• http://petereisentraut.blogspot.com/2010/05/merge-syntax.html
• Upsert with a transaction
• Is SELECT or INSERT in a function prone to race conditions?
• SQL MERGE on the PostgreSQL wiki
• Most idiomatic way to implement UPSERT in Postgresql nowadays

What about MERGE?

SQL-standard MERGE actually has poorly defined concurrency semantics and is not suitable for upserting without locking a table first.

It's a really useful OLAP statement for data merging, but it's not actually a useful solution for concurrency-safe upsert. There's lots of advice to people using other DBMSes to use MERGE for upserts, but it's actually wrong.

Other DBs:

• INSERT ... ON DUPLICATE KEY UPDATE in MySQL
• MERGE from MS SQL Server (but see above about MERGE problems)
• MERGE from Oracle (but see above about MERGE problems)

Below mentioned link gives the clear explanation with example.

http://www.aspsnippets.com/Articles/Open-Show-jQuery-UI-Dialog-Modal-Popup-on-Button-Click.aspx

Code from the same link

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.9/jquery-ui.js" type="text/javascript"></script>
<link href="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.9/themes/blitzer/jquery-ui.css"
    rel="stylesheet" type="text/css" />
<script type="text/javascript">
    $(function () {
        $("#dialog").dialog({
            modal: true,
            autoOpen: false,
            title: "jQuery Dialog",
            width: 300,
            height: 150
        });
        $("#btnShow").click(function () {
            $('#dialog').dialog('open');
        });
    });
</script>
<input type="button" id="btnShow" value="Show Popup" />
<div id="dialog" style="display: none" align = "center">
    This is a jQuery Dialog.
</div>

There can be only one ENTRYPOINT, but that target is usually a script that launches as many programs that are needed. You can additionally use for example Supervisord or similar to take care of launching multiple services inside single container. This is an example of a docker container running mysql, apache and wordpress within a single container.

Say, You have one database that is used by a single web application. Then it is probably easier to run both in a single container.

If You have a shared database that is used by more than one application, then it would be better to run the database in its own container and the applications each in their own containers.

There are at least two possibilities how the applications can communicate with each other when they are running in different containers:

1. Use exposed IP ports and connect via them.
2. Recent docker versions support linking.

You need to do a couple of things to use the library:

1. Make sure that you have both the *.lib and the *.dll from the library you want to use. If you don't have the *.lib, skip #2

2. Put a reference to the *.lib in the project. Right click the project name in the Solution Explorer and then select Configuration Properties->Linker->Input and put the name of the lib in the Additional Dependencies property.

3. You have to make sure that VS can find the lib you just added so you have to go to the Tools menu and select Options... Then under Projects and Solutions select VC++ Directories,edit Library Directory option. From within here you can set the directory that contains your new lib by selecting the 'Library Files' in the 'Show Directories For:' drop down box. Just add the path to your lib file in the list of directories. If you dont have a lib you can omit this, but while your here you will also need to set the directory which contains your header files as well under the 'Include Files'. Do it the same way you added the lib.

After doing this you should be good to go and can use your library. If you dont have a lib file you can still use the dll by importing it yourself. During your applications startup you can explicitly load the dll by calling LoadLibrary (see: http://msdn.microsoft.com/en-us/library/ms684175(VS.85).aspx for more info)

Cheers!

EDIT

Remember to use #include < Foo.h > as opposed to #include "foo.h". The former searches the include path. The latter uses the local project files.

Judging from the error message the value of i was the empty string when you executed it, not 0.

First off, if you want to extract count features and apply TF-IDF normalization and row-wise euclidean normalization you can do it in one operation with TfidfVectorizer:

>>> from sklearn.feature_extraction.text import TfidfVectorizer
>>> from sklearn.datasets import fetch_20newsgroups
>>> twenty = fetch_20newsgroups()

>>> tfidf = TfidfVectorizer().fit_transform(twenty.data)
>>> tfidf
<11314x130088 sparse matrix of type '<type 'numpy.float64'>'
    with 1787553 stored elements in Compressed Sparse Row format>

Now to find the cosine distances of one document (e.g. the first in the dataset) and all of the others you just need to compute the dot products of the first vector with all of the others as the tfidf vectors are already row-normalized.

As explained by Chris Clark in comments and here Cosine Similarity does not take into account the magnitude of the vectors. Row-normalised have a magnitude of 1 and so the Linear Kernel is sufficient to calculate the similarity values.

The scipy sparse matrix API is a bit weird (not as flexible as dense N-dimensional numpy arrays). To get the first vector you need to slice the matrix row-wise to get a submatrix with a single row:

>>> tfidf[0:1]
<1x130088 sparse matrix of type '<type 'numpy.float64'>'
    with 89 stored elements in Compressed Sparse Row format>

scikit-learn already provides pairwise metrics (a.k.a. kernels in machine learning parlance) that work for both dense and sparse representations of vector collections. In this case we need a dot product that is also known as the linear kernel:

>>> from sklearn.metrics.pairwise import linear_kernel
>>> cosine_similarities = linear_kernel(tfidf[0:1], tfidf).flatten()
>>> cosine_similarities
array([ 1.        ,  0.04405952,  0.11016969, ...,  0.04433602,
    0.04457106,  0.03293218])

Hence to find the top 5 related documents, we can use argsort and some negative array slicing (most related documents have highest cosine similarity values, hence at the end of the sorted indices array):

>>> related_docs_indices = cosine_similarities.argsort()[:-5:-1]
>>> related_docs_indices
array([    0,   958, 10576,  3277])
>>> cosine_similarities[related_docs_indices]
array([ 1.        ,  0.54967926,  0.32902194,  0.2825788 ])

The first result is a sanity check: we find the query document as the most similar document with a cosine similarity score of 1 which has the following text:

>>> print twenty.data[0]
From: [email protected] (where's my thing)
Subject: WHAT car is this!?
Nntp-Posting-Host: rac3.wam.umd.edu
Organization: University of Maryland, College Park
Lines: 15

 I was wondering if anyone out there could enlighten me on this car I saw
the other day. It was a 2-door sports car, looked to be from the late 60s/
early 70s. It was called a Bricklin. The doors were really small. In addition,
the front bumper was separate from the rest of the body. This is
all I know. If anyone can tellme a model name, engine specs, years
of production, where this car is made, history, or whatever info you
have on this funky looking car, please e-mail.

Thanks,
- IL
   ---- brought to you by your neighborhood Lerxst ----

The second most similar document is a reply that quotes the original message hence has many common words:

>>> print twenty.data[958]
From: [email protected] (Robert Seymour)
Subject: Re: WHAT car is this!?
Article-I.D.: reed.1993Apr21.032905.29286
Reply-To: [email protected]
Organization: Reed College, Portland, OR
Lines: 26

In article <[email protected]> [email protected] (where's my
thing) writes:
>
>  I was wondering if anyone out there could enlighten me on this car I saw
> the other day. It was a 2-door sports car, looked to be from the late 60s/
> early 70s. It was called a Bricklin. The doors were really small. In
addition,
> the front bumper was separate from the rest of the body. This is
> all I know. If anyone can tellme a model name, engine specs, years
> of production, where this car is made, history, or whatever info you
> have on this funky looking car, please e-mail.

Bricklins were manufactured in the 70s with engines from Ford. They are rather
odd looking with the encased front bumper. There aren't a lot of them around,
but Hemmings (Motor News) ususally has ten or so listed. Basically, they are a
performance Ford with new styling slapped on top.

>    ---- brought to you by your neighborhood Lerxst ----

Rush fan?

--
Robert Seymour              [email protected]
Physics and Philosophy, Reed College    (NeXTmail accepted)
Artificial Life Project         Reed College
Reed Solar Energy Project (SolTrain)    Portland, OR

getAssets()

is only works in Activity in other any class you have to use Context for it.

Make a constructor for Utils class pass reference of activity (ugly way) or context of application as a parameter to it. Using that use getAsset() in your Utils class.

Here is another FastRGB implementation found here:

public class FastRGB {
    public int width;
    public int height;
    private boolean hasAlphaChannel;
    private int pixelLength;
    private byte[] pixels;

    FastRGB(BufferedImage image) {
        pixels = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
        width = image.getWidth();
        height = image.getHeight();
        hasAlphaChannel = image.getAlphaRaster() != null;
        pixelLength = 3;
        if (hasAlphaChannel)
            pixelLength = 4;
    }

    short[] getRGB(int x, int y) {
        int pos = (y * pixelLength * width) + (x * pixelLength);
        short rgb[] = new short[4];
        if (hasAlphaChannel)
            rgb[3] = (short) (pixels[pos++] & 0xFF); // Alpha
        rgb[2] = (short) (pixels[pos++] & 0xFF); // Blue
        rgb[1] = (short) (pixels[pos++] & 0xFF); // Green
        rgb[0] = (short) (pixels[pos++] & 0xFF); // Red
        return rgb;
    }
}

What is this?

Reading an image pixel by pixel through BufferedImage's getRGB method is quite slow, this class is the solution for this.

The idea is that you construct the object by feeding it a BufferedImage instance, and it reads all the data at once and stores them in an array. Once you want to get pixels, you call getRGB

Dependencies

import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;

Considerations

Although FastRGB makes reading pixels much faster, it could lead to high memory usage, as it simply stores a copy of the image. So if you have a 4MB BufferedImage in the memory, once you create the FastRGB instance, the memory usage would become 8MB. You can however, recycle the BufferedImage instance after you create the FastRGB.

Be careful to not fall into OutOfMemoryException when using it on devices such as Android phones, where RAM is a bottleneck

.myDiv { height: 150px; width 150px; }

<div class="mainDiv">
   <div class="myDiv"></div>
   <div class="myDiv"></div>
   <div class="myDiv"></div>
</div>

You can't change the color of the line (you can't specify different foreground colors for the same element, and the text and its decoration form a single element). However there are some tricks:

a:link, a:visited {text-decoration: none; color: red; border-bottom: 1px solid #006699; }
a:hover, a:active {text-decoration: none; color: red; border-bottom: 1px solid #1177FF; }

Also you can make some cool effects this way:

a:link {text-decoration: none; color: red; border-bottom: 1px dashed #006699; }

Hope it helps.

require(ggplot2)
require(nlme)

set.seed(101)
mp <-data.frame(year=1990:2010)
N <- nrow(mp)

mp <- within(mp,
         {
             wav <- rnorm(N)*cos(2*pi*year)+rnorm(N)*sin(2*pi*year)+5
             wow <- rnorm(N)*wav+rnorm(N)*wav^3
         })

m01 <- gls(wow~poly(wav,3), data=mp, correlation = corARMA(p=1))

Get fitted values (the same as m01$fitted)

fit <- predict(m01)

Normally we could use something like predict(...,se.fit=TRUE) to get the confidence intervals on the prediction, but gls doesn't provide this capability. We use a recipe similar to the one shown at http://glmm.wikidot.com/faq :

V <- vcov(m01)
X <- model.matrix(~poly(wav,3),data=mp)
se.fit <- sqrt(diag(X %*% V %*% t(X)))

Put together a "prediction frame":

predframe <- with(mp,data.frame(year,wav,
                                wow=fit,lwr=fit-1.96*se.fit,upr=fit+1.96*se.fit))

Now plot with geom_ribbon

(p1 <- ggplot(mp, aes(year, wow))+
    geom_point()+
    geom_line(data=predframe)+
    geom_ribbon(data=predframe,aes(ymin=lwr,ymax=upr),alpha=0.3))

It's easier to see that we got the right answer if we plot against wav rather than year:

(p2 <- ggplot(mp, aes(wav, wow))+
    geom_point()+
    geom_line(data=predframe)+
    geom_ribbon(data=predframe,aes(ymin=lwr,ymax=upr),alpha=0.3))

It would be nice to do the predictions with more resolution, but it's a little tricky to do this with the results of poly() fits -- see ?makepredictcall.

This should do the job. It provides the client IP address (remote host).

Note that this code is running on the server side.

from mod_python import apache

req.get_remote_host(apache.REMOTE_NOLOOKUP)

webpack users, add the below to your plugins array.

let plugins = [
  // expose $ and jQuery to global scope.
  new webpack.ProvidePlugin({
    $: 'jquery',
    jQuery: 'jquery'
  })
];

import os,requests
def download(url):
    get_response = requests.get(url,stream=True)
    file_name  = url.split("/")[-1]
    with open(file_name, 'wb') as f:
        for chunk in get_response.iter_content(chunk_size=1024):
            if chunk: # filter out keep-alive new chunks
                f.write(chunk)


download("https://example.com/example.jpg")

tl;dr:

There are 3 main issues with multithreading:

1) Race Conditions

2) Caching / stale memory

3) Complier and CPU optimisations

volatile can solve 2 & 3, but can't solve 1. synchronized/explicit locks can solve 1, 2 & 3.

Elaboration:

1) Consider this thread unsafe code:

x++;

While it may look like one operation, it's actually 3: reading the current value of x from memory, adding 1 to it, and saving it back to memory. If few threads try to do it at the same time, the result of the operation is undefined. If x originally was 1, after 2 threads operating the code it may be 2 and it may be 3, depending on which thread completed which part of the operation before control was transferred to the other thread. This is a form of race condition.

Using synchronized on a block of code makes it atomic - meaning it make it as if the 3 operations happen at once, and there's no way for another thread to come in the middle and interfere. So if x was 1, and 2 threads try to preform x++ we know in the end it will be equal to 3. So it solves the race condition problem.

synchronized (this) {
   x++; // no problem now
}

Marking x as volatile does not make x++; atomic, so it doesn't solve this problem.

2) In addition, threads have their own context - i.e. they can cache values from main memory. That means that a few threads can have copies of a variable, but they operate on their working copy without sharing the new state of the variable among other threads.

Consider that on one thread, x = 10;. And somewhat later, in another thread, x = 20;. The change in value of x might not appear in the first thread, because the other thread has saved the new value to its working memory, but hasn't copied it to the main memory. Or that it did copy it to the main memory, but the first thread hasn't updated its working copy. So if now the first thread checks if (x == 20) the answer will be false.

Marking a variable as volatile basically tells all threads to do read and write operations on main memory only. synchronized tells every thread to go update their value from main memory when they enter the block, and flush the result back to main memory when they exit the block.

Note that unlike data races, stale memory is not so easy to (re)produce, as flushes to main memory occur anyway.

3) The complier and CPU can (without any form of synchronization between threads) treat all code as single threaded. Meaning it can look at some code, that is very meaningful in a multithreading aspect, and treat it as if it’s single threaded, where it’s not so meaningful. So it can look at a code and decide, in sake of optimisation, to reorder it, or even remove parts of it completely, if it doesn’t know that this code is designed to work on multiple threads.

Consider the following code:

boolean b = false;
int x = 10;

void threadA() {
    x = 20;
    b = true;
}

void threadB() {
    if (b) {
        System.out.println(x);
    }
}

You would think that threadB could only print 20 (or not print anything at all if threadB if-check is executed before setting b to true), as b is set to true only after x is set to 20, but the compiler/CPU might decide to reorder threadA, in that case threadB could also print 10. Marking b as volatile ensures that it won’t be reordered (or discarded in certain cases). Which mean threadB could only print 20 (or nothing at all). Marking the methods as syncrhonized will achieve the same result. Also marking a variable as volatile only ensures that it won’t get reordered, but everything before/after it can still be reordered, so synchronization can be more suited in some scenarios.

Note that before Java 5 New Memory Model, volatile didn’t solve this issue.

There are obviously several reasons why this might occur, and I thought I'd add the solution to my issue. (I have a java project into which I have imported files with virtual links)

If you have a situation like mine, you will have another folder on the same level as your 'src' folder. If you do, right-click on that other folder, then select 'Build Path' > 'Add to Build Path' (if you see 'Build Path' > 'Remove from Build Path', then it had already been added.)

To further configure the Build Path, right click on your top level project dir, and select 'Build Path' > 'Configure Build Path'. Your folders should show up in the 'Source' tab.

To configure what errors you see, Click on Java Compiler > Errors/Warnings and then click 'Configure Workspace Settings'. That is the same as going to Window > Preferences > Java > Compiler > Errors/Warnings. If you don't want Eclipse to ignore something, then just change it to Warning.

ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION, and WRITE_EXTERNAL_STORAGE are all part of the Android 6.0 runtime permission system. In addition to having them in the manifest as you do, you also have to request them from the user at runtime (using requestPermissions()) and see if you have them (using checkSelfPermission()).

One workaround in the short term is to drop your targetSdkVersion below 23.

But, eventually, you will want to update your app to use the runtime permission system.

For example, this activity works with five permissions. Four are runtime permissions, though it is presently only handling three (I wrote it before WRITE_EXTERNAL_STORAGE was added to the runtime permission roster).

/***
 Copyright (c) 2015 CommonsWare, LLC
 Licensed under the Apache License, Version 2.0 (the "License"); you may not
 use this file except in compliance with the License. You may obtain a copy
 of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
 by applicable law or agreed to in writing, software distributed under the
 License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
 OF ANY KIND, either express or implied. See the License for the specific
 language governing permissions and limitations under the License.

 From _The Busy Coder's Guide to Android Development_
 https://commonsware.com/Android
 */

package com.commonsware.android.permmonger;

import android.Manifest;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
  private static final String[] INITIAL_PERMS={
    Manifest.permission.ACCESS_FINE_LOCATION,
    Manifest.permission.READ_CONTACTS
  };
  private static final String[] CAMERA_PERMS={
    Manifest.permission.CAMERA
  };
  private static final String[] CONTACTS_PERMS={
      Manifest.permission.READ_CONTACTS
  };
  private static final String[] LOCATION_PERMS={
      Manifest.permission.ACCESS_FINE_LOCATION
  };
  private static final int INITIAL_REQUEST=1337;
  private static final int CAMERA_REQUEST=INITIAL_REQUEST+1;
  private static final int CONTACTS_REQUEST=INITIAL_REQUEST+2;
  private static final int LOCATION_REQUEST=INITIAL_REQUEST+3;
  private TextView location;
  private TextView camera;
  private TextView internet;
  private TextView contacts;
  private TextView storage;

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

    location=(TextView)findViewById(R.id.location_value);
    camera=(TextView)findViewById(R.id.camera_value);
    internet=(TextView)findViewById(R.id.internet_value);
    contacts=(TextView)findViewById(R.id.contacts_value);
    storage=(TextView)findViewById(R.id.storage_value);

    if (!canAccessLocation() || !canAccessContacts()) {
      requestPermissions(INITIAL_PERMS, INITIAL_REQUEST);
    }
  }

  @Override
  protected void onResume() {
    super.onResume();

    updateTable();
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.actions, menu);

    return(super.onCreateOptionsMenu(menu));
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch(item.getItemId()) {
      case R.id.camera:
        if (canAccessCamera()) {
          doCameraThing();
        }
        else {
          requestPermissions(CAMERA_PERMS, CAMERA_REQUEST);
        }
        return(true);

      case R.id.contacts:
        if (canAccessContacts()) {
          doContactsThing();
        }
        else {
          requestPermissions(CONTACTS_PERMS, CONTACTS_REQUEST);
        }
        return(true);

      case R.id.location:
        if (canAccessLocation()) {
          doLocationThing();
        }
        else {
          requestPermissions(LOCATION_PERMS, LOCATION_REQUEST);
        }
        return(true);
    }

    return(super.onOptionsItemSelected(item));
  }

  @Override
  public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    updateTable();

    switch(requestCode) {
      case CAMERA_REQUEST:
        if (canAccessCamera()) {
          doCameraThing();
        }
        else {
          bzzzt();
        }
        break;

      case CONTACTS_REQUEST:
        if (canAccessContacts()) {
          doContactsThing();
        }
        else {
          bzzzt();
        }
        break;

      case LOCATION_REQUEST:
        if (canAccessLocation()) {
          doLocationThing();
        }
        else {
          bzzzt();
        }
        break;
    }
  }

  private void updateTable() {
    location.setText(String.valueOf(canAccessLocation()));
    camera.setText(String.valueOf(canAccessCamera()));
    internet.setText(String.valueOf(hasPermission(Manifest.permission.INTERNET)));
    contacts.setText(String.valueOf(canAccessContacts()));
    storage.setText(String.valueOf(hasPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)));
  }

  private boolean canAccessLocation() {
    return(hasPermission(Manifest.permission.ACCESS_FINE_LOCATION));
  }

  private boolean canAccessCamera() {
    return(hasPermission(Manifest.permission.CAMERA));
  }

  private boolean canAccessContacts() {
    return(hasPermission(Manifest.permission.READ_CONTACTS));
  }

  private boolean hasPermission(String perm) {
    return(PackageManager.PERMISSION_GRANTED==checkSelfPermission(perm));
  }

  private void bzzzt() {
    Toast.makeText(this, R.string.toast_bzzzt, Toast.LENGTH_LONG).show();
  }

  private void doCameraThing() {
    Toast.makeText(this, R.string.toast_camera, Toast.LENGTH_SHORT).show();
  }

  private void doContactsThing() {
    Toast.makeText(this, R.string.toast_contacts, Toast.LENGTH_SHORT).show();
  }

  private void doLocationThing() {
    Toast.makeText(this, R.string.toast_location, Toast.LENGTH_SHORT).show();
  }
}

(from this sample project)

For the requestPermissions() function, should the parameters just be "ACCESS_COARSE_LOCATION"? Or should I include the full name "android.permission.ACCESS_COARSE_LOCATION"?

I would use the constants defined on Manifest.permission, as shown above.

Also, what is the request code?

That will be passed back to you as the first parameter to onRequestPermissionsResult(), so you can tell one requestPermissions() call from another.

You can use each for this:

$('#productList li').each(function(i, li) {
  var $product = $(li);  
  // your code goes here
});

That being said - are you sure you want to be updating the values to be +1 each time? Couldn't you just find the count and then set the values based on that?

you can use html entity as •

Try out this

var str ="{ "name" : "user"}";
var jsonData = JSON.parse(str);     
console.log(jsonData.name)

//Array Object

str ="[{ "name" : "user"},{ "name" : "user2"}]";
jsonData = JSON.parse(str);     
console.log(jsonData[0].name)

This is a short and crisp answer to your problem:

from __future__ import print_function
import MySQLdb
import numpy as np
import pandas as pd
import xlrd

# Connecting to MySQL Database
connection = MySQLdb.connect(
             host="hostname",
             port=0000,
             user="userID",
             passwd="password",
             db="table_documents",
             charset='utf8'
           )
print(connection)
#getting data from database into a dataframe
sql_for_df = 'select * from tabledata'
df_from_database = pd.read_sql(sql_for_df , connection)

The selected answer did not work for me, as I had spaces, quotes and other strange characters in my filenames. To quote the input for basename, you should use:

ls /path/to/my/directory | xargs -n1 -I{} basename "{}"

This is guaranteed to work, regardless of what the files are called.

Quite frankly, I believe people use these Dependency Injection libraries/frameworks because they just know how to do things in runtime, as opposed to load time. All this crazy machinery can be substituted by setting your CLASSPATH environment variable (or other language equivalent, like PYTHONPATH, LD_LIBRARY_PATH) to point to your alternative implementations (all with the same name) of a particular class. So in the accepted answer you'd just leave your code like

var logger = new Logger() //sane, simple code

And the appropriate logger will be instantiated because the JVM (or whatever other runtime or .so loader you have) would fetch it from the class configured via the environment variable mentioned above.

No need to make everything an interface, no need to have the insanity of spawning broken objects to have stuff injected into them, no need to have insane constructors with every piece of internal machinery exposed to the world. Just use the native functionality of whatever language you're using instead of coming up with dialects that won't work in any other project.

P.S.: This is also true for testing/mocking. You can very well just set your environment to load the appropriate mock class, in load time, and skip the mocking framework madness.

clearfix should contain the floating elements but in your html you have added clearfix only after floating right that is your pull-right so you should do like this:

<div class="clearfix">
  <div id="sidebar">
    <ul>
      <li>A</li>
      <li>A</li>
      <li>C</li>
      <li>D</li>
      <li>E</li>
      <li>F</li>
      <li>...</li>
      <li>Z</li>
    </ul>
  </div>
  <div id="main">
    <div>
      <div class="pull-right">
        <a>RIGHT</a>
      </div>
    </div>
  <div>MOVED BELOW Z</div>
</div>

see this demo

Happy to know you solved the problem by setting overflow properties. However this is also good idea to clear the float. Where you have floated your elements you could add overflow: hidden; as you have done in your main.

I'd rather trust JDK over System property. Following is a working snippet.

    private boolean checkIfStringContainsNewLineCharacters(String str){
        if(!StringUtils.isEmpty(str)){
            Scanner scanner = new Scanner(str);
            scanner.nextLine();
            boolean hasNextLine =  scanner.hasNextLine();
            scanner.close();
            return hasNextLine;
        }
        return false;
    }

public class Console {

    public static void Log(Object obj){
        System.out.println(obj);
    }
}

to call and use as JavaScript just do this:

Console.Log (Object)

I think that's what you mean

Actually, document.all is only minimally comparable to document.getElementById. You wouldn't use one in place of the other, they don't return the same things.

If you were trying to filter through browser capabilities you could use them as in Marcel Korpel's answer like this:

if(document.getElementById){  //DOM
    element = document.getElementById(id);
} else if (document.all) {    //IE
    element = document.all[id];
} else if (document.layers){  //Netscape < 6
    element = document.layers[id];
}

But, functionally, document.getElementsByTagName('*') is more equivalent to document.all.

For example, if you were actually going to use document.all to examine all the elements on a page, like this:

var j = document.all.length;
for(var i = 0; i < j; i++){
   alert("Page element["+i+"] has tagName:"+document.all(i).tagName);
}

you would use document.getElementsByTagName('*') instead:

var k = document.getElementsByTagName("*");
var j = k.length; 
for (var i = 0; i < j; i++){
    alert("Page element["+i+"] has tagName:"+k[i].tagName); 
}

Shortest possible answer.

HTML

<a data-toggle="collapse" data-parent="#panel-quote-group" href="#collapseQuote">
    <span class="toggle-icon glyphicon glyphicon-collapse-up"></span>
</a>

JS:

<script type="text/javascript">
 $(function () {
     $('a[data-toggle="collapse"]').click(function () {
     $(this).find('span.toggle-icon').toggleClass('glyphicon-collapse-up glyphicon-collapse-down');
     })
 })
 </script>

And of course, you can use anything for a selector instead of anchor tag a and you can also use specific selector instead of this if your icon lies outside your clicked element.

You can use .exists (return boolean) in jpaRepository.

if(commercialRuleMsisdnRepo.exists(commercialRuleMsisdn.getRuleId())!=true){

        jsRespon.setStatusDescription("SUCCESS ADD TO DB");
    }else{
        jsRespon.setStatusCode("ID already exists is database");
    }

This is a popular question. If you do not use these methods, the solution is updating the libraries. Please update your kotlin version, and all your dependencies like fabric, protobuf etc. If you are sure that you have updated everything, try asking the author of the library.

import * as csv from 'fast-csv';
import * as fs from 'fs';
interface Row {
  [s: string]: string;
}
type RowCallBack = (data: Row, index: number) => object;
export class CSVReader {
  protected file: string;
  protected csvOptions = {
    delimiter: ',',
    headers: true,
    ignoreEmpty: true,
    trim: true
  };
  constructor(file: string, csvOptions = {}) {
    if (!fs.existsSync(file)) {
      throw new Error(`File ${file} not found.`);
    }
    this.file = file;
    this.csvOptions = Object.assign({}, this.csvOptions, csvOptions);
  }
  public read(callback: RowCallBack): Promise < Array < object >> {
    return new Promise < Array < object >> (resolve => {
      const readStream = fs.createReadStream(this.file);
      const results: Array < any > = [];
      let index = 0;
      const csvStream = csv.parse(this.csvOptions).on('data', async (data: Row) => {
        index++;
        results.push(await callback(data, index));
      }).on('error', (err: Error) => {
        console.error(err.message);
        throw err;
      }).on('end', () => {
        resolve(results);
      });
      readStream.pipe(csvStream);
    });
  }
}

import { CSVReader } from '../src/helpers/CSVReader';
(async () => {
  const reader = new CSVReader('./database/migrations/csv/users.csv');
  const users = await reader.read(async data => {
    return {
      username: data.username,
      name: data.name,
      email: data.email,
      cellPhone: data.cell_phone,
      homePhone: data.home_phone,
      roleId: data.role_id,
      description: data.description,
      state: data.state,
    };
  });
  console.log(users);
})();

In plain-old JavaScript you can do this:

var inputs = document.getElementsByTagName('input');

for(var i = 0; i < inputs.length; i++) {
    if(inputs[i].type.toLowerCase() == 'text') {
        alert(inputs[i].value);
    }
}

In jQuery, you would just do:

// select all inputs of type 'text' on the page
$("input:text")

// hide all text inputs which are descendants of div class="foo"
$("div.foo input:text").hide();

Use Series.view for convert boolean to integers:

df["somecolumn"] = df["somecolumn"].view('i1')

Those who are using create-react-app and trying to fetch local json files.

As in create-react-app, webpack-dev-server is used to handle the request and for every request it serves the index.html. So you are getting

SyntaxError: Unexpected token < in JSON at position 0.

To solve this, you need to eject the app and modify the webpack-dev-server configuration file.

You can follow the steps from here.

You can do something like this, very simple and efficient solution: What i did was actually use a parameter instead of basic placeholder, created a SqlParameter object and used another existing execution method. For e.g in your scenario:

string sql = "INSERT INTO mssqltable (varbinarycolumn) VALUES (@img)";
SqlParameter param = new SqlParameter("img", arraytoinsert); //where img is your parameter name in the query
ExecuteStoreCommand(sql, param);

This should work like a charm, provided you have an open sql connection established.

You shouldn't need a $watch. Just bind to resize event on window:

DEMO

'use strict';

var app = angular.module('plunker', []);

app.directive('myDirective', ['$window', function ($window) {

     return {
        link: link,
        restrict: 'E',
        template: '<div>window size: {{width}}px</div>'
     };

     function link(scope, element, attrs){

       scope.width = $window.innerWidth;

       angular.element($window).bind('resize', function(){

         scope.width = $window.innerWidth;

         // manuall $digest required as resize event
         // is outside of angular
         scope.$digest();
       });

     }

 }]);

Got the answer :

SELECT * FROM DBA_ROLES;

You are passing pointers (Complex*) when your function takes references (const Complex&). A reference and a pointer are entirely different things. When a function expects a reference argument, you need to pass it the object directly. The reference only means that the object is not copied.

To get an object to pass to your function, you would need to dereference your pointers:

Complex::distanta(*firstComplexNumber, *secondComplexNumber);

Or get your function to take pointer arguments.

However, I wouldn't really suggest either of the above solutions. Since you don't need dynamic allocation here (and you are leaking memory because you don't delete what you have newed), you're better off not using pointers in the first place:

Complex firstComplexNumber(81, 93);
Complex secondComplexNumber(31, 19);
Complex::distanta(firstComplexNumber, secondComplexNumber);

Cuz I haven't had the enough reputation so far, I can't add a comment under

the answer posted by prosti in Jun 26 '19 at 13:16.

    def reset_parameters(self):
        init.kaiming_uniform_(self.weight, a=math.sqrt(3))
        if self.bias is not None:
            fan_in, _ = init._calculate_fan_in_and_fan_out(self.weight)
            bound = 1 / math.sqrt(fan_in)
            init.uniform_(self.bias, -bound, bound)

But I wanna point out that actually we know some assumptions in the paper of Kaiming He, Delving Deep into Rectifiers: Surpassing Human-Level Performance on ImageNet Classification, are not appropriate, though it looks like the deliberately designed initialization method makes a hit in practice.

E.g., within the subsection of Backward Propagation Case, they assume that $w_l$ and $\delta y_l$ are independent of each other. But as we all known, take the score map $\delta y^L_i$ as an instance, it often is $y_i-softmax(y^L_i)=y_i-softmax(w^L_ix^L_i)$ if we use a typical cross entropy loss function objective.

So I think the true underlying reason why He's Initialization works well remains to unravel. Cuz everyone has witnessed its power on boosting deep learning training.

If you mean what ports are listening, you can open a command prompt and write:

netstat

You can write:

netstat /?

for an explanation of all options.

Casting a pointer to void* and back is valid use of reinterpret_cast<>. So you could do this:

pthread_create(&thread, NULL, myFcn, new int(5)); // implicit cast to void* from int*

Then in myFcn:

void* myFcn(void* arg)
{
    int*  data = reinterpret_cast<int*>(arg);
    int   x    = *data;
    delete data;

Note: As sbi points out this would require a change on the OP call to create the thread.

What I am trying to emphasis that conversion from int to pointer and back again can be frough with problems as you move from platform to platform. BUT converting a pointer to void* and back again is well supported (everywhere).

Thus as a result it may be less error prone to generate a pointer dynamcially and use that. Remembering to delete the pointer after use so that we don't leak.

Python 3.5+:

DeprecationWarning: inspect.getargspec() is deprecated, use inspect.signature() instead

So previously:

func_args = inspect.getargspec(function).args

Now:

func_args = list(inspect.signature(function).parameters.keys())

To test:

'arg' in list(inspect.signature(function).parameters.keys())

Given that we have function 'function' which takes argument 'arg', this will evaluate as True, otherwise as False.

Example from the Python console:

Python 3.6.0 (v3.6.0:41df79263a11, Dec 23 2016, 07:18:10) [MSC v.1900 32 bit (Intel)] on win32
>>> import inspect
>>> 'iterable' in list(inspect.signature(sum).parameters.keys())
True

Under Cygwin, the only thing that worked for me is the following:

git config --global merge.tool myp4merge
git config --global mergetool.myp4merge.cmd 'p4merge.exe "$(cygpath -wla $BASE)" "$(cygpath -wla $LOCAL)" "$(cygpath -wla $REMOTE)" "$(cygpath -wla $MERGED)"'
git config --global diff.tool myp4diff
git config --global difftool.myp4diff.cmd 'p4merge.exe "$(cygpath -wla $LOCAL)" "$(cygpath -wla $REMOTE)"'

Also, I like to turn off the prompt message for difftool:

git config --global difftool.prompt false

shiv / shim / sham

If your image(s) are already loaded (or not), this "tool" may come in handy:

Object.defineProperty
(
    HTMLImageElement.prototype,'toDataURL',
    {enumerable:false,configurable:false,writable:false,value:function(m,q)
    {
        let c=document.createElement('canvas');
        c.width=this.naturalWidth; c.height=this.naturalHeight;
        c.getContext('2d').drawImage(this,0,0); return c.toDataURL(m,q);
    }}
);

.. but why?

This has the advantage of using the "already loaded" image data, so no extra request in needed. Aditionally it lets the end-user (programmer like you) decide the CORS and/or mime-type and quality -OR- you can leave out these arguments/parameters as described in the MDN specification here.

If you have this JS loaded (prior to when it's needed), then converting to dataURL is as simple as:

examples

<img src="/yo.jpg" onload="console.log(this.toDataURL('image/jpeg'))">

console.log(document.getElementById("someImgID").toDataURL());

GPU fingerprinting

If you are concerned about the "preciseness" of the bits then you can alter this tool to suit your needs as provided by @Kaiido's answer.

This is not necessarily a VBA task - This specific task is easiest sollowed with Auto filter.

1.Insert Auto filter (In Excel 2010 click on home-> (Editing) Sort & Filter -> Filter)
2. Filter on the 'Websites' column
3. Mark the 'none' and delete them
4. Clear filter

Alternatively, you could use tensorflow for the cropping and openCV for making an array from the image.

import cv2
img = cv2.imread('YOURIMAGE.png')

Now img is a (imageheight, imagewidth, 3) shape array. Crop the array with tensorflow:

import tensorflow as tf
offset_height=0
offset_width=0
target_height=500
target_width=500
x = tf.image.crop_to_bounding_box(
    img, offset_height, offset_width, target_height, target_width
)

Reassemble the image with tf.keras, so we can look at it if it worked:

tf.keras.preprocessing.image.array_to_img(
    x, data_format=None, scale=True, dtype=None
)

This prints out the pic in a notebook (tested in Google Colab).

The whole code together:

import cv2
img = cv2.imread('YOURIMAGE.png')

import tensorflow as tf
offset_height=0
offset_width=0
target_height=500
target_width=500
x = tf.image.crop_to_bounding_box(
    img, offset_height, offset_width, target_height, target_width
)

tf.keras.preprocessing.image.array_to_img(
    x, data_format=None, scale=True, dtype=None
)

I think of two ways to test for the type of a value:

Method 1:

You can use the isNaN javascript method, which determines if a value is NaN or not. But because in your case you are testing a numerical value converted to string, Javascript is trying to guess the type of the value and converts it to the number 5 which is not NaN. That's why if you console.log out the result, you will be surprised that the code:

if (isNaN(i)) {
    console.log('This is not number');
}

will not return anything. For this reason a better alternative would be the method 2.

Method 2:

You may use javascript typeof method to test the type of a variable or value

if (typeof i != "number") {
    console.log('This is not number');
}

Notice that i'm using double equal operator, because in this case the type of the value is a string but Javascript internally will convert to Number.

A more robust method to force the value to numerical type is to use Number.isNaN which is part of new Ecmascript 6 (Harmony) proposal, hence not widespread and fully supported by different vendors.

Mozilla recently released the awesome L20n or localization 2.0. In their own words L20n is

an open source, localization-specific scripting language used to process gender, plurals, conjugations, and most of the other quirky elements of natural language.

Their js implementation is on the github L20n repository.

Unfortunately, URLEncoder.encode() does not produce valid percent-encoding (as specified in RFC 3986).

URLEncoder.encode() encodes everything just fine, except space is encoded to "+". All the Java URI encoders that I could find only expose public methods to encode the query, fragment, path parts etc. - but don't expose the "raw" encoding. This is unfortunate as fragment and query are allowed to encode space to +, so we don't want to use them. Path is encoded properly but is "normalized" first so we can't use it for 'generic' encoding either.

Best solution I could come up with:

return URLEncoder.encode(raw, "UTF-8").replaceAll("\\+", "%20");

If replaceAll() is too slow for you, I guess the alternative is to roll your own encoder...

EDIT: I had this code in here first which doesn't encode "?", "&", "=" properly:

//don't use - doesn't properly encode "?", "&", "="
new URI(null, null, null, raw, null).toString().substring(1);

I just solved an identical symptom, by creating the registry value HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system\LocalAccountTokenFilterPolicy and setting it to 1. More details are available here.

I know that's an old question with good answers, but I believe I can add my 2 cents.

The simplest and most flexible way which works for me is just using an almost "Plain and Old Java Object" class2D to create each "row" of your array.

The below example has some explanations and is executable (you can copy and paste it, but remember to check the package name):

package my2darraylist;

import java.util.ArrayList;
import java.util.List;
import javax.swing.JPanel;

public class My2DArrayList
{
    public static void main(String[] args)
    {
        // This is your "2D" ArrayList
        // 
        List<Box> boxes = new ArrayList<>();

        // Add your stuff
        //
        Box stuff = new Box();
        stuff.setAString( "This is my stuff");
        stuff.addString("My Stuff 01");
        stuff.addInteger( 1 );
        boxes.add( stuff );

        // Add other stuff
        //
        Box otherStuff = new Box();
        otherStuff.setAString( "This is my other stuff");
        otherStuff.addString("My Other Stuff 01");
        otherStuff.addInteger( 1 );
        otherStuff.addString("My Other Stuff 02");
        otherStuff.addInteger( 2 );
        boxes.add( otherStuff );

        // List the whole thing
        for ( Box box : boxes)
        {
            System.out.println( box.getAString() );
            System.out.println( box.getMyStrings().size() );
            System.out.println( box.getMyIntegers().size() );
        }
    }

}

class Box
{
    // Each attribute is a "Column" in you array
    //    
    private String aString;
    private List<String> myStrings = new ArrayList<>() ;
    private List<Integer> myIntegers = new ArrayList<>();
    // Use your imagination...
    //
    private JPanel jpanel;

    public void addString( String s )
    {
        myStrings.add( s );
    }

    public void addInteger( int i )
    {
        myIntegers.add( i );
    }

    // Getters & Setters

    public String getAString()
    {
        return aString;
    }

    public void setAString(String aString)
    {
        this.aString = aString;
    }

    public List<String> getMyStrings()
    {
        return myStrings;
    }

    public void setMyStrings(List<String> myStrings)
    {
        this.myStrings = myStrings;
    }

    public List<Integer> getMyIntegers()
    {
        return myIntegers;
    }

    public void setMyIntegers(List<Integer> myIntegers)
    {
        this.myIntegers = myIntegers;
    }

    public JPanel getJpanel()
    {
        return jpanel;
    }

    public void setJpanel(JPanel jpanel)
    {
        this.jpanel = jpanel;
    }
}

UPDATE - To answer the question from @Mohammed Akhtar Zuberi, I've created the simplified version of the program, to make it easier to show the results.

import java.util.ArrayList;

public class My2DArrayListSimplified
{

    public static void main(String[] args)
    {
        ArrayList<Row> rows = new ArrayList<>();
        Row row;
        // Insert the columns for each row
        //             First Name, Last Name, Age
        row = new Row("John",      "Doe",     30);
        rows.add(row);
        row = new Row("Jane",      "Doe",     29);
        rows.add(row);
        row = new Row("Mary",      "Doe",      1);
        rows.add(row);

        // Show the Array
        //
        System.out.println("First\t Last\tAge");
        System.out.println("----------------------");
        for (Row printRow : rows)
        {
            System.out.println(
                    printRow.getFirstName() + "\t " +
                    printRow.getLastName() + "\t" +
                    printRow.getAge());

        }
    }

}

class Row
{

    // REMEMBER: each attribute is a column
    //
    private final String firstName;
    private final String lastName;
    private final int age;

    public Row(String firstName, String lastName, int age)
    {
        this.firstName = firstName;
        this.lastName = lastName;
        this.age = age;
    }

    public String getFirstName()
    {
        return firstName;
    }

    public String getLastName()
    {
        return lastName;
    }

    public int getAge()
    {
        return age;
    }

}

The code above produces the following result (I ran it on NetBeans):

run:
First    Last   Age
----------------------
John     Doe    30
Jane     Doe    29
Mary     Doe    1
BUILD SUCCESSFUL (total time: 0 seconds)

There is a simpler way. If you set layout constraints as follows and your EditText is fixed sized, it will get centered in the constraint layout:

app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"

The left/right pair centers the view horizontally and top/bottom pair centers it vertically. This is because when you set the left, right or top,bottom constraints bigger than the view it self, the view gets centered between the two constraints i.e the bias is set to 50%. You can also move view up/down or right/left by setting the bias your self. Play with it a bit and you will see how it affects the views position.

To check an ajax request you can use if (Request::ajax())

Note: If you are using laravel 5, then in the controller replace

use Illuminate\Http\Request;

with

use Request; 

I hope it'll work.

I had the same issue with pip 1.5.6.

I just deleted the ~/.pip folder and it worked like a charm.

rm -r ~/.pip/

Cast them to a Number

$('#total_price').val(Number(a)+Number(b));

But before you do that

if (!isNaN($('input[name=service_price]').val()) {...

You can try out this one as well as. Because this worked for me and it's simple.

<style>
    <%@ include file="/css/style.css" %>
</style>

Your question How can I just get the file-names (with paths)

Your syntax example find . -iname "*php" -exec grep -H myString {} \;

My Command suggestion

sudo find /home -name *.php

The output from this command on my Linux OS:

compose-sample-3/html/mail/contact_me.php

As you require the filename with path, enjoy!

Open with append:

pFile2 = fopen("myfile2.txt", "a");

then just write to pFile2, no need to fseek().

Make sure, you've run composer update on your server instance.

Well in simple term.

html()-- to get inner html(html tags and text).

text()-- to get only text if present inside(only text)

But we can declare a function inside main():

int main()
{
    void a();
}

Although the syntax is correct, sometimes it can lead to the "Most vexing parse":

#include <iostream>


struct U
{
    U() : val(0) {}
    U(int val) : val(val) {}

    int val;
};

struct V
{
    V(U a, U b)
    {
        std::cout << "V(" << a.val << ", " << b.val << ");\n";
    }
    ~V()
    {
        std::cout << "~V();\n";
    }
};

int main()
{
    int five = 5;
    V v(U(five), U());
}

=> no program output.

(Only Clang warning after compilation).

C++'s most vexing parse again

Please take care that the epoch time is in second and Date object accepts Long value which is in milliseconds. Hence you would have to multiply epoch value with 1000 to use it as long value . Like below :-

SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddhhmmss");
sdf.setTimeZone(TimeZone.getTimeZone(timeZone));
Long dateLong=Long.parseLong(sdf.format(epoch*1000));

This is reviving an old question, but in Python 3, you can just use bytes directly:

>>> bytes([17, 24, 121, 1, 12, 222, 34, 76])
b'\x11\x18y\x01\x0c\xde"L'

Should be

private ArrayList<String[]> action = new ArrayList<String[]>();
action.add(new String[2]);
...

You can't specify the size of the array within the generic parameter, only add arrays of specific size to the list later. This also means that the compiler can't guarantee that all sub-arrays be of the same size, it must be ensured by you.

A better solution might be to encapsulate this within a class, where you can ensure the uniform size of the arrays as a type invariant.

Just modify one of the returned entities:

Customer c = (from x in dataBase.Customers
             where x.Name == "Test"
             select x).First();
c.Name = "New Name";
dataBase.SaveChanges();

Note, you can only update an entity (something that extends EntityObject, not something that you have projected using something like select new CustomObject{Name = x.Name}

Use :

 $(this).parent().css("background-image", "url(/images/r-srchbg_white.png) no-repeat;");

instead of

 $(this).parent().css("background", "url(/images/r-srchbg_white.png) no-repeat;");

More examples you cand see here

TF v2.0 supports Eager mode vis-a-vis Graph mode of v1.0. Hence, tf.session() is not supported on v2.0. Hence, would suggest you to rewrite your code to work in Eager mode.

For me it was because of no SSH key on the machine. Check the SSH key locally:

$ cat ~/.ssh/id_rsa.pub

This is your SSH key. Add it to your SSH keys in the repository.
In gitlab go to

profile settings -> SSH Keys

and add the key

This code is to solve our problem to set unique key for existing table

alter ignore table ioni_groups add unique (group_name);

The file .bashrc is read when you start an interactive shell. This is the file that you should update. E.g:

export PATH=$PATH:/opt/ActiveTcl-8.5/bin

Restart the shell for the changes to take effect or source it, i.e.:

source .bashrc

If you "require" 'exampleDirective' from another directive + your logic is in 'exampleDirective's' controller (let's say 'exampleCtrl'):

app.directive('exampleDirective', function () {
    return {
        restrict: 'A',
        scope: false,
        bindToController: {
            myCallback: '&exampleFunction'
        },
        controller: 'exampleCtrl',
        controllerAs: 'vm'
    };
});
app.controller('exampleCtrl', function () {
    var vm = this;
    vm.myCallback();
});

The solution with FileWriter is working, however you have no possibility to specify output encoding then, in which case the default encoding for machine will be used, and this is usually not UTF-8!

So at best use FileOutputStream:

    Writer writer = new BufferedWriter(new OutputStreamWriter(
        new FileOutputStream(file, true), "UTF-8"));

Yes, use the rendered attribute.

<h:form rendered="#{some boolean condition}">

You usually tie it to the model rather than letting the model grab the component and manipulate it.

E.g.

<h:form rendered="#{bean.booleanValue}" />
<h:form rendered="#{bean.intValue gt 10}" />
<h:form rendered="#{bean.objectValue eq null}" />
<h:form rendered="#{bean.stringValue ne 'someValue'}" />
<h:form rendered="#{not empty bean.collectionValue}" />
<h:form rendered="#{not bean.booleanValue and bean.intValue ne 0}" />
<h:form rendered="#{bean.enumValue eq 'ONE' or bean.enumValue eq 'TWO'}" />

Note the importance of keyword based EL operators such as gt, ge, le and lt instead of >, >=, <= and < as angle brackets < and > are reserved characters in XML. See also this related Q&A: Error parsing XHTML: The content of elements must consist of well-formed character data or markup.

As to your specific use case, let's assume that the link is passing a parameter like below:

<a href="page.xhtml?form=1">link</a>

You can then show the form as below:

<h:form rendered="#{param.form eq '1'}">

(the #{param} is an implicit EL object referring to a Map representing the request parameters)

See also:

• Java EE 6 tutorial - Expression Language
• How to show JSF components if list is not null and has size() > 0
• Why do I need to nest a component with rendered="#{some}" in another component when I want to ajax-update it?

// TypeScript

const today = new Date();
const firstDayOfYear = new Date(today.getFullYear(), 0, 1);

// Explicitly convert Date to Number
const pastDaysOfYear = ( Number(today) - Number(firstDayOfYear) );

bootstrap.min.css is more specific than your own stylesheet if you just use .table td. So use this instead:

.table>tbody>tr>th, .table>tbody>tr>td {
    border-top: none;
}

"Best" is such a subjective term :-)

I would just use the method of checking each individual variable. If your class already has a lot of these, the increase in size is not going to be that much if you do something like:

public Boolean anyUnset() {
    if (  id == null) return true;
    if (name == null) return true;
    return false;
}

Provided you keep everything in the same order, code changes (and automated checking with a script if you're paranoid) will be relatively painless.

Alternatively (assuming they're all strings), you could basically put these values into a map of some sort (eg, HashMap) and just keep a list of the key names for that list. That way, you could iterate through the list of keys, checking that the values are set correctly.

Suppose you are calling a web service using HttpWebRequest and HttpWebResponse, because .Net client doest support the structure of the WSLD that your are trying to consume.

In that case you can add the security credentials on the headers like:

<soap:Envelpe>
<soap:Header>
    <wsse:Security soap:mustUnderstand='true' xmlns:wsse='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd' xmlns:wsu='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd'><wsse:UsernameToken wsu:Id='UsernameToken-3DAJDJSKJDHFJASDKJFKJ234JL2K3H2K3J42'><wsse:Username>YOU_USERNAME/wsse:Username><wsse:Password Type='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText'>YOU_PASSWORD</wsse:Password><wsse:Nonce EncodingType='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary'>3WSOKcKKm0jdi3943ts1AQ==</wsse:Nonce><wsu:Created>2015-01-12T16:46:58.386Z</wsu:Created></wsse:UsernameToken></wsse:Security>
</soapHeather>
<soap:Body>
</soap:Body>


</soap:Envelope>

You can use SOAPUI to get the wsse Security, using the http log.

Be careful because it is not a safe scenario.

Creating own answer, as nobody has considered that the split might not happened (shorter text). In that case we don't want to add '...' as suffix.

Ternary operator will sort that out:

var text = "blahalhahkanhklanlkanhlanlanhak";
var count = 35;

var result = text.slice(0, count) + (text.length > count ? "..." : "");

Can be closed to function:

function fn(text, count){
    return text.slice(0, count) + (text.length > count ? "..." : "");
}

console.log(fn("aognaglkanglnagln", 10));

And expand to helpers class so You can even choose if You want the dots or not:

function fn(text, count, insertDots){
    return text.slice(0, count) + (((text.length > count) && insertDots) ? "..." : "");
}

console.log(fn("aognaglkanglnagln", 10, true));
console.log(fn("aognaglkanglnagln", 10, false));

I'm re-acquainting myself with Python and needed the same thing. The findall solution may be better, but I came up with this:

tokens = [x.strip() for x in data.split(',')]

Try the :host > /deep/ :

Add the following to the parent.component.less file

:host {
    /deep/ app-child-component {
       //your child style
    }
}

Replace the app-child-component by your child selector

And here the solution for C#/Xamarin.Android:

var token = await FirebaseInstallations.Instance.GetToken(forceRefresh: false).AsAsync<InstallationTokenResult>();

Like you, I have been looking into several comments and post to replace special escape characters in my JSON which contains html object inside that.

My object is to remove the special characters in JSON object and also render the html which is inside the json object.

Here is what I did and hope its very simple to use.

First I did JSON.stringify my json object and JSON.parse the result.

For eg:

JSON.parse(JSON.stringify(jsonObject));

And it solves my problem and done using Pure Javascript.

You could just do something like this:

SELECT *
FROM foo
WHERE (@param = 0 AND MyColumn IS NULL)
OR (@param = 1 AND MyColumn IS NOT NULL)
OR (@param = 2)

Something like that.

driver Asus for Windows: http://www.asus.com/sa-en/support/Download/39/1/0/2/32/

Choose target device: USB device

(open image in new tab for bigger)

You should be able to do this with existing bootstrap classes and a little custom styling.

<form>
    <div class="input-prepend">
        <span class="add-on">
            <i class="icon-user"></i>
        </span>
        <input class="span2" id="prependedInput" type="text" placeholder="Username" style="background-color: #eeeeee;border-left: #eeeeee;">
    </div>         

Edit The icon is referenced via the icon-user class. This answer was written at the time of Bootstrap version 2. You can see the reference on the following page: http://getbootstrap.com/2.3.2/base-css.html#images

Based on the other answers, here is a first draft for usage with knockout:

Usage

      <div data-bind="editableSelect: {options: optionsObservable, value: nameObservable}"></div>

Knockout data binding

composition.addBindingHandler('editableSelect',
  {
    init: function(hostElement, valueAccessor) {

      var optionsObservable = getOptionsObservable();
      var valueObservable = getValueObservable();

      var $editableSelect = $(hostElement);
      $editableSelect.addClass('select-editable');

      var editableSelect = $editableSelect[0];

      var viewModel = new editableSelectViewModel(optionsObservable, valueObservable);
      ko.applyBindingsToNode(editableSelect, { compose: viewModel });

      //tell knockout to not apply bindings twice
      return { controlsDescendantBindings: true };

      function getOptionsObservable() {
        var accessor = valueAccessor();
        return getAttribute(accessor, 'options');
      }

      function getValueObservable() {
        var accessor = valueAccessor();
        return getAttribute(accessor, 'value');
      }
    }
  });

View

<select
  data-bind="options: options, event:{ focus: resetComboBoxValue, change: setTextFieldValue} "
  id="comboBox"
  ></select>
<input
  data-bind="value: value, , event:{ focus: textFieldGotFocus, focusout: textFieldLostFocus}"
  id="textField"
  type="text"/>

ViewModel

define([
  'lodash',
  'services/errorHandler'
], function(
  _,
  errorhandler
) {

  var viewModel = function(optionsObservable, valueObservable) {

    var self = this;
    self.options = optionsObservable();
    self.value = valueObservable;
    self.resetComboBoxValue = resetComboBoxValue;
    self.setTextFieldValue = setTextFieldValue;
    self.textFieldGotFocus = textFieldGotFocus;
    self.textFieldLostFocus = textFieldLostFocus;

    function resetComboBoxValue() {
      $('#comboBox').val(null);
    }

    function setTextFieldValue() {
      var selection = $('#comboBox').val();
      self.value(selection);
    }

    function textFieldGotFocus() {
      $('#comboBox').addClass('select-editable-input-focus');

    }

    function textFieldLostFocus() {
      $('#comboBox').removeClass('select-editable-input-focus');
    }

  };
  errorhandler.includeIn(viewModel);

  return viewModel;
});

CSS

.select-editable {

  display: block;
  width: 100%;
  height: 31px;
  padding: 6px 12px;
  font-size: 12px;
  line-height: 1.42857143;
  color: #555555;
  background-color: #ffffff;
  background-image: none;
  border: 1px solid #cccccc;
  border-radius: 0px;
  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
  -webkit-transition: border-color ease-in-out .15s, -webkit-box-shadow ease-in-out .15s;
  -o-transition: border-color ease-in-out .15s, box-shadow ease-in-out .15s;
  transition: border-color ease-in-out .15s, box-shadow ease-in-out .15s;padding: 0;
}


.select-editable select {
  outline:0;
  padding-left: 10px;
  border:none;
  width:100%;
  height: 29px;
}


.select-editable input {
  outline:0;
  position: relative;
  top: -27px;
  margin-left: 10px;
  width:90%;
  height: 25px;
  border:none;
}

.select-editable select:focus {
  outline:0;
  border: 1px solid #66afe9;
  -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, 0.6);
  box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, 0.6);
}




.select-editable input:focus {
  outline:0;
}

.select-editable-input-focus {
outline:0;
  border: 1px solid #66afe9 !important;
  -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, 0.6);
  box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, 0.6);
}

I think I am a bit late to the party but... In my opinion, what you need is the object oriented API of matplotlib. In matplotlib 1.4.2 and using IPython 2.4.1 with Qt4Agg backend, I can do the following:

import matplotlib.pyplot as plt
fig, ax = plt.subplots(1) # Creates figure fig and add an axes, ax.
fig2, ax2 = plt.subplots(1) # Another figure

ax.plot(range(20)) #Add a straight line to the axes of the first figure.
ax2.plot(range(100)) #Add a straight line to the axes of the first figure.

fig.show() #Only shows figure 1 and removes it from the "current" stack.
fig2.show() #Only shows figure 2 and removes it from the "current" stack.
plt.show() #Does not show anything, because there is nothing in the "current" stack.
fig.show() # Shows figure 1 again. You can show it as many times as you want.

In this case plt.show() shows anything in the "current" stack. You can specify figure.show() ONLY if you are using a GUI backend (e.g. Qt4Agg). Otherwise, I think you will need to really dig down into the guts of matplotlib to monkeypatch a solution.

Remember that most (all?) plt.* functions are just shortcuts and aliases for figure and axes methods. They are very useful for sequential programing, but you will find blocking walls very soon if you plan to use them in a more complex way.

I think the importance of the concept "Turing Complete" is in the the ability to identify a computing machine (not necessarily a mechanical/electrical "computer") that can have its processes be deconstructed into "simple" instructions, composed of simpler and simpler instructions, that a Universal machine could interpret and then execute.

I highly recommend The Annotated Turing

@Mark i think what you are explaining is a mix between the description of the Universal Turing Machine and Turing Complete.

Something that is Turing Complete, in a practical sense, would be a machine/process/computation able to be written and represented as a program, to be executed by a Universal Machine (a desktop computer). Though it doesn't take consideration for time or storage, as mentioned by others.

Check host file which like this

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1   localhost
255.255.255.255 broadcasthost

I had the same error and i did followed article found on google solves my issue. You have not concluded your merge

You can also use str.partition:

>>> text = "123mango abcd mango kiwi peach"

>>> text.partition("mango")
('123', 'mango', ' abcd mango kiwi peach')

>>> text.partition("mango")[-1]
' abcd mango kiwi peach'

>>> text.partition("mango")[-1].lstrip()  # if whitespace strip-ing is needed
'abcd mango kiwi peach'

The advantage of using str.partition is that it's always gonna return a tuple in the form:

(<pre>, <separator>, <post>)

So this makes unpacking the output really flexible as there's always going to be 3 elements in the resulting tuple.

In Android , we have the class SmsManager which manages SMS operations such as sending data, text, and pdu SMS messages. Get this object by calling the static method SmsManager.getDefault().

SmsManager Javadoc

Check the following link to get the sample code for sending SMS:

article on sending and receiving SMS messages in Android

A key point that I find missing in the above answers is that urllib returns an object of type <class http.client.HTTPResponse> whereas requests returns <class 'requests.models.Response'>.

Due to this, read() method can be used with urllib but not with requests.

P.S. : requests is already rich with so many methods that it hardly needs one more as read() ;>

You can do this:

1. I created a separated request Alamofire object.
2. Convert string to Data

3. Put in httpBody the data

   var request = URLRequest(url: URL(string: url)!)
   request.httpMethod = HTTPMethod.post.rawValue
   request.setValue("application/json", forHTTPHeaderField: "Content-Type")
   
   let pjson = attendences.toJSONString(prettyPrint: false)
   let data = (pjson?.data(using: .utf8))! as Data
   
   request.httpBody = data
   
   Alamofire.request(request).responseJSON { (response) in
   
   
       print(response)
   
   }
   

I always love using the command line and have user friendly tools (with GUI) at my hand. Best of both worlds. Here is how I do it to compare two commits in Git.

You can show the diff between two commits like the following.

Edit your git config file in a TEXT EDITOR:

git config --global -e 

Set up a proper diff tool (user friendly) like Meld like this in Windows in the Git config file:

[difftool "meld"]
cmd = "C:/Program Files (x86)/Meld/Meld.exe" "LOCAL\" \"REMOTE" --label "DIFF (ORIGINAL MY)"
prompt = false
path = C:\Program Files (x86)\Meld\Meld.exe

Meld can be installed using Chocolatey like this from the COMMAND LINE:

choco install meld

Let's define a shell function to help us compare two sha-s (commits) under [alias] in the TEXT EDITOR:

[alias]
showchangesbetween = "!w() { git difftool \"$1\" \"$2\" --dir-diff --ignore-all-space; }; w"

To compare the commits with the help of Meld (or your other favorite diff tool, just type at the COMMAND LINE:

git showchangesbetween somesha123 somesha456

The commit sha-s are easily visible typing

 git log 

for example.

try like this

= IIF( MAX( iif( IsNothing(Fields!.Reading.Value ), -1, Fields!.Reading.Value ) ) = -1, "",  FormatNumber(  MAX( iif( IsNothing(Fields!.Reading.Value ), -1, Fields!.Reading.Value ), "CellReading_Reading"),3)) )

Remember that in git you have:

• the HEAD pointer, which tells you what commit you're working on
• the working tree, which represents the state of the files on your system
• the staging area (also called the index), which "stages" changes so that they can later be committed together

Please include detailed explanations about:

--hard, --soft and --merge;

In increasing order of dangerous-ness:

• --soft moves HEAD but doesn't touch the staging area or the working tree.
• --mixed moves HEAD and updates the staging area, but not the working tree.
• --merge moves HEAD, resets the staging area, and tries to move all the changes in your working tree into the new working tree.
• --hard moves HEAD and adjusts your staging area and working tree to the new HEAD, throwing away everything.

concrete use cases and workflows;

• Use --soft when you want to move to another commit and patch things up without "losing your place". It's pretty rare that you need this.

--

# git reset --soft example
touch foo                            // Add a file, make some changes.
git add foo                          // 
git commit -m "bad commit message"   // Commit... D'oh, that was a mistake!
git reset --soft HEAD^               // Go back one commit and fix things.
git commit -m "good commit"          // There, now it's right.

--

• Use --mixed (which is the default) when you want to see what things look like at another commit, but you don't want to lose any changes you already have.

• Use --merge when you want to move to a new spot but incorporate the changes you already have into that the working tree.

• Use --hard to wipe everything out and start a fresh slate at the new commit.

try with either of the 2 below commands

/usr/local/mysql/bin/mysql -uroot
-- OR --
/usr/local/Cellar/mysql/<version>/bin/mysql -uroot

Try disabling iptables: service iptables stop

If this works, enable TCP port 80 to your firewall rules: run system-config-selinux from root, and enable TCP port 80 (HTTP) on your firewall.

I forgot to select the column (or set/map the property to a column value):

IQueryable<SampleTable> queryable = from t in dbcontext.SampleTable
                                    where ...
                                    select new DataModel { Name = t.Name };

Calling queryable.OrderBy("Id") will throw exception, even though DataModel has property Id defined.

The correct query is:

IQueryable<SampleTable> queryable = from t in dbcontext.SampleTable
                                    where ...
                                    select new DataModel { Name = t.Name, Id = t.Id };

You should move your switch into the template by using the 'ng-switch' directive:

module.directive('testForm', function() {
    return {
        restrict: 'E',
        controllerAs: 'form',
        controller: function ($scope) {
            console.log("Form controller initialization");
            var self = this;
            this.fields = {};
            this.addField = function(field) {
                console.log("New field: ", field);
                self.fields[field.name] = field;
            };
        }
    }
});

module.directive('formField', function () {
    return {
        require: "^testForm",
        template:
            '<div ng-switch="field.fieldType">' +
            '    <span>{{title}}:</span>' +
            '    <input' +
            '        ng-switch-when="text"' +
            '        name="{{field.name}}"' +
            '        type="text"' +
            '        ng-model="field.value"' +
            '    />' +
            '    <select' +
            '        ng-switch-when="select"' +
            '        name="{{field.name}}"' +
            '        ng-model="field.value"' +
            '        ng-options="option for option in options">' +
            '        <option value=""></option>' +
            '    </select>' +
            '</div>',
        restrict: 'E',
        replace: true,
        scope: {
            fieldType: "@",
            title: "@",
            name: "@",
            value: "@",
            options: "=",
        },
        link: function($scope, $element, $attrs, form) {
            $scope.field = $scope;
            form.addField($scope);
        }
    };
});

It can be use like this:

<test-form>
    <div>
        User '{{!form.fields.email.value}}' will be a {{!form.fields.role.value}}
    </div>
    <form-field title="Email" name="email" field-type="text" value="[email protected]"></form-field>
    <form-field title="Role" name="role" field-type="select" options="['Cook', 'Eater']"></form-field>
    <form-field title="Sex" name="sex" field-type="select" options="['Awesome', 'So-so', 'awful']"></form-field>
</test-form>

repalce content with the CSS

 h1{  font-size: 0px;}
 h1:after {
    content: "new content";
    font-size: 15px;
  }

I think what you probably want is to maintain navigation state across tabs and not specifically creating a single session per tab. This is exactly what the Seam framework achieves with their Conversation scope/context. Their implementation relies on the fact that a conversation id is propagated with each request and creates the notion of a conversation on the server side, which is something that lies between a session and a request. It allows for navigation flow control and state management.

Although that's mainly aimed at JSF, have a look and check if that's something where you can take some ideas from: http://docs.jboss.org/seam/latest/reference/en-US/html_single/#d0e3620

Not sure if this is what you mean, but try setting las=1. Here's an example:

require(grDevices)
tN <- table(Ni <- stats::rpois(100, lambda=5))
r <- barplot(tN, col=rainbow(20), las=1)

That represents the style of axis labels. (0=parallel, 1=all horizontal, 2=all perpendicular to axis, 3=all vertical)

I am using :: Spring Boot :: (v2.0.4.RELEASE) with Spring Framework 5

Spring Boot 2.0 requires Java 8 as a minimum version. Many existing APIs have been updated to take advantage of Java 8 features such as: default methods on interfaces, functional callbacks, and new APIs such as javax.time.

By default, Spring Boot serves static content from a directory called /static (or /public or /resources or /META-INF/resources) in the classpath or from the root of the ServletContext. It uses the ResourceHttpRequestHandler from Spring MVC so that you can modify that behavior by adding your own WebMvcConfigurer and overriding the addResourceHandlers method.

By default, resources are mapped on /** and located on /static directory. But you can customize the static loactions programmatically inside our web context configuration class.

@Configuration @EnableWebMvc
public class Static_ResourceHandler implements WebMvcConfigurer {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        // When overriding default behavior, you need to add default(/) as well as added static paths(/webapp).

        // src/main/resources/static/...
        registry
            //.addResourceHandler("/**") // « /css/myStatic.css
            .addResourceHandler("/static/**") // « /static/css/myStatic.css
            .addResourceLocations("classpath:/static/") // Default Static Loaction
            .setCachePeriod( 3600 )
            .resourceChain(true) // 4.1
            .addResolver(new GzipResourceResolver()) // 4.1
            .addResolver(new PathResourceResolver()); //4.1

        // src/main/resources/templates/static/...
        registry
            .addResourceHandler("/templates/**") // « /templates/style.css
            .addResourceLocations("classpath:/templates/static/");

        // Do not use the src/main/webapp/... directory if your application is packaged as a jar.
        registry
            .addResourceHandler("/webapp/**") // « /webapp/css/style.css
            .addResourceLocations("/");

        // File located on disk
        registry
            .addResourceHandler("/system/files/**")
            .addResourceLocations("file:///D:/");
    }
}

http://localhost:8080/handlerPath/resource-path+name
                    /static         /css/myStatic.css
                    /webapp         /css/style.css
                    /templates      /style.css

In Spring every request will go through the DispatcherServlet. To avoid Static file request through DispatcherServlet(Front contoller) we configure MVC Static content.

As @STEEL said static resources should not go through Controller. Thymleaf is a ViewResolver which takes the view name form controller and adds prefix and suffix to View Layer.

Redirect the output to DEVNULL:

import os
import subprocess

FNULL = open(os.devnull, 'w')
retcode = subprocess.call(['echo', 'foo'], 
    stdout=FNULL, 
    stderr=subprocess.STDOUT)

It is effectively the same as running this shell command:

retcode = os.system("echo 'foo' &> /dev/null")

Update: This answer applies to the original question relating to python 2.7. As of python >= 3.3 an official subprocess.DEVNULL symbol was added.

retcode = subprocess.call(['echo', 'foo'], 
    stdout=subprocess.DEVNULL, 
    stderr=subprocess.STDOUT)

You can get the column value in VB.net

Dim row As DataRow = fooTable.Rows(0)
Dim temp = Convert.ToString(row("ColumnName"))

And in C# you can use Jimmy's Answer, just be careful while converting it to ToString(). It can throw null exception if the data is null instead Use Convert.ToString(your_expression) to avoid null exception reference