Received the following error

Execution failed for task ':app:transformDexArchiveWithDexMergerForDebug'.

com.android.build.api.transform.TransformException: com.android.dex.DexException: Multiple dex files define Landroid/support/constraint/ConstraintSet$1

Fix : go to Build -> Clean Project

I deleted the workbench.xmi in the folder workspace/.metadata/.plugins/org.eclipse.e4.workbench/.

I got this error because a build hung and then I tried to quit. However, I had unsaved changes. This prompted the following errors in logfile about unsaved changes and jobs that are not finished.

Quick answer

Go to Help → Install new software → Here uncheck “Contact all update sites during install to find required software”

Eclipse will prompt that the content isn't authorized or something like that. just ignore and continue. then everything will be OK.

At least this trick resolved my problems similar like this:

An error occurred while collecting items to be installed session context was:(profile=epp.package.jee, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=). No repository found containing: osgi.bundle,org.eclipse.emf,2.6.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.ant,2.7.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.codegen,2.8.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.codegen.ecore,2.8.1.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.codegen.ecore.ui,2.8.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.codegen.ui,2.6.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.common,2.8.0.v20120911-0500 No repository found containing: osgi.bundle,org.eclipse.emf.common.ui,2.7.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.converter,2.5.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.databinding,1.2.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.databinding.edit,1.2.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.ecore,2.8.1.v20120911-0500 No repository found containing: osgi.bundle,org.eclipse.emf.ecore.change,2.8.0.v20120911-0500 No repository found containing: osgi.bundle,org.eclipse.emf.ecore.change.edit,2.5.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.ecore.edit,2.8.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.ecore.editor,2.8.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.ecore.xmi,2.8.0.v20120911-0500 No repository found containing: osgi.bundle,org.eclipse.emf.edit,2.8.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.edit.ui,2.8.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.exporter,2.6.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.importer,2.7.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.importer.ecore,2.6.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.importer.java,2.6.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.importer.rose,2.6.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.mapping,2.7.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.mapping.ecore,2.6.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.mapping.ecore.editor,2.6.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.mapping.ecore2ecore,2.7.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.mapping.ecore2ecore.editor,2.5.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.mapping.ecore2xml,2.7.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.mapping.ecore2xml.ui,2.6.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.emf.mapping.ui,2.6.0.v20120917-0436 No repository found containing: osgi.bundle,org.eclipse.wst.common.project.facet.core,1.4.300.v201111030424 No repository found containing: osgi.bundle,org.eclipse.wst.common.project.facet.ui,1.4.300.v201111030424 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.codegen.ecore,2.8.1.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.codegen.ecore.ui,2.8.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.codegen,2.8.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.codegen.ui,2.7.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.common,2.8.0.v20120911-0500 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.common.ui,2.7.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.converter,2.8.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.databinding.edit,1.2.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.databinding,1.2.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.ecore.edit,2.8.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.ecore.editor,2.8.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.ecore,2.8.1.v20120911-0500 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.edit,2.8.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.edit.ui,2.8.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf,2.8.1.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.mapping.ecore.editor,2.7.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.mapping.ecore,2.7.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.mapping,2.7.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.emf.mapping.ui,2.7.0.v20120917-0436 No repository found containing: org.eclipse.update.feature,org.eclipse.wst.common.fproj,3.4.0.v201202292300-377F8N8s735555393B7B

finally work for me !

In Eclipse, Window > Preferences > General > Network Connections,
set Active Provider to Native
add to eclipse.ini :

-Djava.net.useSystemProxies=true
-Dhttp.proxyPort=8080
-Dhttp.proxyHost=myproxy
-Dhttp.proxyUser=mydomain\myusername
-Dhttp.proxyPassword=mypassword
-Dhttp.nonProxyHosts=localhost|127.0.0.1|192.168.*|10.*
-Dorg.eclipse.ecf.provider.filetransfer.excludeContributors=org.eclipse.ecf.provider.filetransfer.httpclient4

There is no need of doing such hectic stuffs. Find in your system where there is "SDK Manager".(incase of windows). Suppose your sdk manager is in E:\Android-9. Go to that path double click the SDK manager ;it will automatically start to download from https://dl-ssl.google.com/../..

Initially you will se it is failing. On the window that appears there will be 'settings' menu. Click on that set the proxy and port. and it will start downloading.

The solution in one sentence is "Don't use eclipse for the download;directly use Android sdk manager and your problem is resolved". Let me know if you have any futhur queries on this issue.

Eclipse loads plug-ins lazily, and most common plug-ins, like Subclipse, don't do anything if you don't use them. They don't slow Eclipse down at all during run time, and it won't help you to disable them. In fact, Mylyn was shown to reduce Eclipse's memory footprint when used correctly.

I run Eclipse with tons of plug-ins without any performance penalty at all.

• Try disabling compiler settings that you perhaps don't need (e.g. the sub-options under "parameter is never read).
• Which version of Eclipse are you using? Older versions were known to be slow if you upgraded them over and over again, because they got their plug-ins folder inflated with duplicate plug-ins (with different versions). This is not a problem in version 3.4.
• Use working-sets. They work better than closing projects, particularly if you need to switch between sets of projects all the time.

It's not only the memory that you need to increase with the -Xmx switch, it's also the perm gen size. I think that problem was solved in Eclipse 3.4.

Do you mean altering the table after it has been created? If so you need to use alter table, in particular:

ALTER TABLE tablename MODIFY COLUMN new-column-definition

e.g.

ALTER TABLE test MODIFY COLUMN locationExpect VARCHAR(120);

Edit the .htaccess file, so the first line reads 'Test.':

Test.

Set the default handler

DirectoryIndex index.php index.html index.htm

...

I think while (true) is a bit more readable.

Maybe you're not doing it as root?

Try sudo nginx -s reload, if it still doesn't work, you might want to try sudo pkill -HUP nginx.

Try using --debug

Useful if you're trying to get the right path to an include or source data file.

Ok I figured this out. For anyone else trying to do this you need:

a) heading: your heading from the hardware compass. This is in degrees east of magnetic north

b) bearing: the bearing from your location to the destination location. This is in degrees east of true north.

myLocation.bearingTo(destLocation);

c) declination: the difference between true north and magnetic north

The heading that is returned from the magnetometer + accelermometer is in degrees east of true (magnetic) north (-180 to +180) so you need to get the difference between north and magnetic north for your location. This difference is variable depending where you are on earth. You can obtain by using GeomagneticField class.

GeomagneticField geoField;

private final LocationListener locationListener = new LocationListener() {
   public void onLocationChanged(Location location) {
      geoField = new GeomagneticField(
         Double.valueOf(location.getLatitude()).floatValue(),
         Double.valueOf(location.getLongitude()).floatValue(),
         Double.valueOf(location.getAltitude()).floatValue(),
         System.currentTimeMillis()
      );
      ...
   }
}

Armed with these you calculate the angle of the arrow to draw on your map to show where you are facing in relation to your destination object rather than true north.

First adjust your heading with the declination:

heading += geoField.getDeclination();

Second, you need to offset the direction in which the phone is facing (heading) from the target destination rather than true north. This is the part that I got stuck on. The heading value returned from the compass gives you a value that describes where magnetic north is (in degrees east of true north) in relation to where the phone is pointing. So e.g. if the value is -10 you know that magnetic north is 10 degrees to your left. The bearing gives you the angle of your destination in degrees east of true north. So after you've compensated for the declination you can use the formula below to get the desired result:

heading = myBearing - (myBearing + heading); 

You'll then want to convert from degrees east of true north (-180 to +180) into normal degrees (0 to 360):

Math.round(-heading / 360 + 180)

Try using a div tag and block for span!

<div>
  <span style="padding-right:3px; padding-top: 3px; display:block;">
    <img class="manImg" src="images/ico_mandatory.gif"></img>
  </span>
</div>

You could use the old ways. And use a table. In the table you define 3 columns. You set the width of your whole table and define the width of every colum. that way you can horizantaly space 2 objects. You put object one inside cell1 (colum1, row1) and object2 in cell3 (colum 3, row 1) and you leave cell 2 empty. Given it has a width, you will see empty spaces. example

<table width="500">
    <tr>
        <td width="40%">
            Object 1
        </td>
        <td width="20%">

        </td>
        <td width="40%">
            Object 2
        </td>
    </tr>
</table>

Or you could go the better way with div's. Just put your objects inside divs. Add a middle div and put these 3 divs inside another div. At the css style to the upper div: overflow: auto and define a width. Add css style to the 3 divs to define their width and add float: left example

<div style="overflow: auto;width: 100%;">
    <div style="width:200px;float: left;">
        Object  1
    </div>
    <div style="width:200px;float: left;">

    </div>
    <div style="width:200px;float: left;">
        Object  2
    </div>
</div>

I'm not sure if you can detect whether it's loaded or not, but you can fire an event once it's done loading:

$(function(){
    $('#myIframe').ready(function(){
        //your code (will be called once iframe is done loading)
    });
});

EDIT: As pointed out by Jesse Hallett, this will always fire when the iframe has loaded, even if it already has. So essentially, if the iframe has already loaded, the callback will execute immediately.

While this is an old post, it is something that helped me solve the issue. So to keep others stumbling upon this to find a solution using the current Angular2 stack (2.0.0-rc.4 at this time), I downgraded my jQuery version to 2.2.4, added the bootstrap.js distributed under node_modules/bootstrap/dist/js to my InjectableDependencies (using gulp, and defining this in the project.config.ts file) and everything continues to work just fine.

You could use regular expressions to count for you.

String subject = "First Line\n Second Line\nThird Line";  
Matcher wordM = Pattern.compile("\\b\\S+?\\b").matcher(subject); //matches a word
Matcher charM = Pattern.compile(".").matcher(subject); //matches a character
Matcher newLineM = Pattern.compile("\\r?\\n").matcher(subject); //matches a linebreak

int words=0,chars=0,newLines=1; //newLines is initially 1 because the first line has no corresponding linebreak

while(wordM.find()) words++;
while(charM.find()) chars++;
while(newLineM.find()) newLines++;

System.out.println("Words: "+words);
System.out.println("Chars: "+chars);
System.out.println("Lines: "+newLines);

i had the same problem with my jar the solution

1. Create the MANIFEST.MF file:

Manifest-Version: 1.0

Sealed: true

Class-Path: . lib/jarX1.jar lib/jarX2.jar lib/jarX3.jar

Main-Class: com.MainClass

2. Right click on project, Select Export.

select export all outpout folders for checked project

3. select using existing manifest from workspace and select the MANIFEST.MF file

This worked for me :)

Try just

sudo service mysql restart

It worked for me

simple you want to inialize a 2d array and assign a size of array then a example is

   public static void main(String args[])
   { 
    char arr[][];   //arr is 2d array name
    arr = new char[3][3]; 
    }


   //this is a way to inialize a 2d array in java....  

Thanks for all the helpful suggestions. I finally made sure that there are no warnings in my code, but again was getting this warning from sqlite3:

Assuming signed overflow does not occur when assuming that (X - c) <= X is always true

which I fixed by adding the following CFLAG:

-fno-strict-overflow

How about this?

set search=%1
set replace=%2
set textfile=Input.txt    

python -c "with open('%textfile%', 'rw') as f: f.write(f.read().replace('%search%', '%replace%'))"

Muhahaha

I looked everywhere for an answer and finally this worked for me:

SELECT Lower(Substring(MASTER.dbo.Fn_varbintohexstr(0x21232F297A57A5A743894A0E4A801FC3), 3, 8000))

Outputs to (string):

21232f297a57a5a743894a0e4a801fc3

You can use it in your WHERE or JOIN conditions as well in case you want to compare/match varbinary records with strings

Like andynormancx' post, use this (if you're working in an Unix environment):

scriptname > /dev/null

Or you can use this (if you're working in a Windows environment):

scriptname > nul

you can use both use array like :

$array = array('tlb_account.crid' =>$value , 'tlb_request.sign'=> 'FALSE' );

and direct assign like:

$this->db->where('tlb_account.crid' =>$value , 'tlb_request.sign'=> 'FALSE');

I wish help you.

from django.utils import simplejson 
from django.core import serializers 

def pagina_json(request): 
   misdatos = misdatos.objects.all()
   data = serializers.serialize('json', misdatos) 
   return HttpResponse(data, mimetype='application/json')

I was trying to create a borderless window with WindowStyle="None" but when I tested it, seems that appears a white bar in the top, after some research it appears to be a "Resize border", here is an image (I remarked in yellow):

After some research over the internet, and lots of difficult non xaml solutions, all the solutions that I found were code behind in C# and lots of code lines, I found indirectly the solution here: Maximum custom window loses drop shadow effect

<WindowChrome.WindowChrome>
    <WindowChrome 
        CaptionHeight="0"
        ResizeBorderThickness="5" />
</WindowChrome.WindowChrome>

Note : You need to use .NET 4.5 framework, or if you are using an older version use WPFShell, just reference the shell and use Shell:WindowChrome.WindowChrome instead.

I used the WindowChrome property of Window, if you use this that white "resize border" disappears, but you need to define some properties to work correctly.

CaptionHeight: This is the height of the caption area (headerbar) that allows for the Aero snap, double clicking behaviour as a normal title bar does. Set this to 0 (zero) to make the buttons work.

ResizeBorderThickness: This is thickness at the edge of the window which is where you can resize the window. I put to 5 because i like that number, and because if you put zero its difficult to resize the window.

After using this short code the result is this:

And now, the white border disappeared without using ResizeMode="NoResize" and AllowsTransparency="True", also it shows a shadow in the window.

Later I will explain how to make to work the buttons (I didn't used images for the buttons) easily with simple and short code, Im new and i think that I can post to codeproject, because here I didn't find the place to post the tutorial.

Maybe there is another solution (I know that there are hard and difficult solutions for noobs like me) but this works for my personal projects.

Here is the complete code

<Window x:Class="MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:Concursos"
    mc:Ignorable="d"
    Title="Concuros" Height="350" Width="525"
    WindowStyle="None"
    WindowState="Normal" 
    ResizeMode="CanResize"
    >
<WindowChrome.WindowChrome>
    <WindowChrome 
        CaptionHeight="0"
        ResizeBorderThickness="5" />
</WindowChrome.WindowChrome>

    <Grid>

    <Rectangle Fill="#D53736" HorizontalAlignment="Stretch" Height="35" VerticalAlignment="Top" PreviewMouseDown="Rectangle_PreviewMouseDown" />
    <Button x:Name="Btnclose" Content="r" HorizontalAlignment="Right" VerticalAlignment="Top" Width="35" Height="35" Style="{StaticResource TempBTNclose}"/>
    <Button x:Name="Btnmax" Content="2" HorizontalAlignment="Right" VerticalAlignment="Top" Margin="0,0,35,0" Width="35" Height="35" Style="{StaticResource TempBTNclose}"/>
    <Button x:Name="Btnmin" Content="0" HorizontalAlignment="Right" VerticalAlignment="Top" Margin="0,0,70,0" Width="35" Height="35" Style="{StaticResource TempBTNclose}"/>

</Grid>

Thank you!

Interfaces

An interface is a contract: The person writing the interface says, "hey, I accept things looking that way", and the person using the interface says "OK, the class I write looks that way".

An interface is an empty shell. There are only the signatures of the methods, which implies that the methods do not have a body. The interface can't do anything. It's just a pattern.

For example (pseudo code):

// I say all motor vehicles should look like this:
interface MotorVehicle
{
    void run();

    int getFuel();
}

// My team mate complies and writes vehicle looking that way
class Car implements MotorVehicle
{

    int fuel;

    void run()
    {
        print("Wrroooooooom");
    }


    int getFuel()
    {
        return this.fuel;
    }
}

Implementing an interface consumes very little CPU, because it's not a class, just a bunch of names, and therefore there isn't any expensive look-up to do. It's great when it matters, such as in embedded devices.

Abstract classes

Abstract classes, unlike interfaces, are classes. They are more expensive to use, because there is a look-up to do when you inherit from them.

Abstract classes look a lot like interfaces, but they have something more: You can define a behavior for them. It's more about a person saying, "these classes should look like that, and they have that in common, so fill in the blanks!".

For example:

// I say all motor vehicles should look like this:
abstract class MotorVehicle
{

    int fuel;

    // They ALL have fuel, so lets implement this for everybody.
    int getFuel()
    {
         return this.fuel;
    }

    // That can be very different, force them to provide their
    // own implementation.
    abstract void run();
}

// My teammate complies and writes vehicle looking that way
class Car extends MotorVehicle
{
    void run()
    {
        print("Wrroooooooom");
    }
}

Implementation

While abstract classes and interfaces are supposed to be different concepts, the implementations make that statement sometimes untrue. Sometimes, they are not even what you think they are.

In Java, this rule is strongly enforced, while in PHP, interfaces are abstract classes with no method declared.

In Python, abstract classes are more a programming trick you can get from the ABC module and is actually using metaclasses, and therefore classes. And interfaces are more related to duck typing in this language and it's a mix between conventions and special methods that call descriptors (the __method__ methods).

As usual with programming, there is theory, practice, and practice in another language :-)

You can try the below query. I assume you have a single table for all your data.

SELECT OD.ProductID, OD.ProductName, CalQ.OrderQuantity
FROM (SELECT DISTINCT ProductID, ProductName
      FROM OrderDetails) OD
INNER JOIN (SELECT ProductID, OrderQuantity SUM(OrderQuantity)
            FROM OrderDetails
            GROUP BY ProductID) CalQ
ON CalQ.ProductID = OD.ProductID

PNG has 2 advantages: it has smaller size and it's more widely used and supported (except in case favicons). As mentioned before ICO, can have multiple size icons, which is useful for desktop applications, but not too much for websites. I would recommend you to put a favicon.ico in the root of your application. An if you have access to the Head of your website pages use the tag to point to a png file. So older browser will show the favicon.ico and newer ones the png.

To create Png and Icon files I would recommend The Gimp.

Using docker compose you can mount a volume with postgresql.auto.conf. Example:

version: '2'

services:
  db:
    image: postgres:10.9-alpine
    volumes:
      - postgres:/var/lib/postgresql/data:z
      - ./docker/postgres/postgresql.auto.conf:/var/lib/postgresql/data/postgresql.auto.conf
    ports:
      - 5432:5432

$str='This is   a Text \n and so on Text text.';
print preg_replace("/[[:blank:]]+/"," ",$str);

Use JSON.stringify() to wrap your json

var parameter = JSON.stringify({type:"user", username:user_email, password:user_password});
    $http.post(url, parameter).
    success(function(data, status, headers, config) {
        // this callback will be called asynchronously
        // when the response is available
        console.log(data);
      }).
      error(function(data, status, headers, config) {
        // called asynchronously if an error occurs
        // or server returns response with an error status.
      });

Using DateTimeFormatter it can be achieved as below:

import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.time.temporal.TemporalAccessor;
import java.util.Date;
import java.util.TimeZone;

public class DateTimeFormatTest {

    public static void main(String[] args) {

        String pattern = "[yyyy-MM-dd[['T'][ ]HH:mm:ss[.SSSSSSSz][.SSS[XXX][X]]]]";
        String timeSample = "2018-05-04T13:49:01.7047141Z";
        SimpleDateFormat simpleDateFormatter = new SimpleDateFormat("dd/MM/yy HH:mm:ss");
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern(pattern);
        TemporalAccessor accessor = formatter.parse(timeSample);
        ZonedDateTime zTime = LocalDateTime.from(accessor).atZone(ZoneOffset.UTC);

        Date date=new Date(zTime.toEpochSecond()*1000);
        simpleDateFormatter.setTimeZone(TimeZone.getTimeZone(ZoneOffset.UTC));
        System.out.println(simpleDateFormatter.format(date));       
    }
}

Pay attention at String pattern, this is the combination of multiple patterns. In open [ and close ] square brackets you can mention any kind of patterns.

For whom can help, nowadays in 2018, youtube have options for this:

(Example in Catalan, sorry :)

Translation of the 3 arrows : "Share" - "Embed" - "Show suggested videos when the video is finished"

try calling a function on the onload method of your body tag and in that function change the style of body like this document.body.style.overflow = 'scroll'; also you might need to set the width of your html as this will show horizontal scroll bars as well

your html file will look something like this

<script language="javascript">
    function showscroll() {
        document.body.style.overflow = 'scroll';
    }
</script>
</head>
<body onload="showscroll()">

Do attributes migrated from parent to child help identify¹ the child?

• If yes: the identification-dependence exists, the relationship is identifying and the child entity is "weak".
• If not: the identification-dependence doesn't exists, the relationship is non-identifying and the child entity "strong".

Note that identification-dependence implies existence-dependence, but not the other way around. Every non-NULL FK means a child cannot exist without parent, but that alone doesn't make the relationship identifying.

For more on this (and some examples), take a look at the "Identifying Relationships" section of the ERwin Methods Guide.

P.S. I realize I'm (extremely) late to the party, but I feel other answers are either not entirely accurate (defining it in terms of existence-dependence instead of identification-dependence), or somewhat meandering. Hopefully this answer provides more clarity...

¹ The child's FK is a part of child's PRIMARY KEY or (non-NULL) UNIQUE constraint.

Have a look at either Left or Substring if you need to chop it up even more.

Google and the MySQL docs are a good place to start - you'll usually not get such a warm response if you've not even tried to help yourself before asking a question.

I would answer this with multiple options actually, the some of which actually render in the body.

• Place library script such as the jQuery library in the head section.
• Place normal script in the head unless it becomes a performance/page load issue.
• Place script associated with includes, within and at the end of that include. One example of this is .ascx user controls in asp.net pages - place the script at the end of that markup.
• Place script that impacts the render of the page at the end of the body (before the body closure).
• do NOT place script in the markup such as <input onclick="myfunction()"/> - better to put it in event handlers in your script body instead.
• If you cannot decide, put it in the head until you have a reason not to such as page blocking issues.

Footnote: "When you need it and not prior" applies to the last item when page blocking (perceptual loading speed). The user's perception is their reality—if it is perceived to load faster, it does load faster (even though stuff might still be occurring in code).

EDIT: references:

• asp.net discussion: http://west-wind.com/weblog/posts/154797.aspx and here: http://msdn.microsoft.com/en-us/library/3hc29e2a.aspx
• jQuery document ready discussion: http://encosia.com/2010/08/18/dont-let-jquerys-document-ready-slow-you-down/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+Encosia+%28Encosia%29
• the other answers on this question present valid information as well.
• use www.google.com and www.bing.com to search for related information (there are a lot of references)

Side note: IF you place script blocks within markup, it may effect layout in certain browsers by taking up space (ie7 and opera 9.2 are known to have this issue) so place them in a hidden div (use a css class like: .hide { display: none; visibility: hidden; } on the div)

Standards: Note that the standards allow placement of the script blocks virtually anywhere if that is in question: http://www.w3.org/TR/1999/REC-html401-19991224/sgml/dtd.html and http://www.w3.org/TR/xhtml11/xhtml11_dtd.html

EDIT2: Note that whenever possible (always?) you should put the actual Javascript in external files and reference those - this does not change the pertinent sequence validity.

In addition to previous answers, if your menu items are Categories and you want to highlight them when navigating through posts, check also for current-post-ancestor:

add_filter('nav_menu_css_class' , 'special_nav_class' , 10 , 2);

function special_nav_class ($classes, $item) {
    if (in_array('current-post-ancestor', $classes) || in_array('current-page-ancestor', $classes) || in_array('current-menu-item', $classes) ){
        $classes[] = 'active ';
    }
    return $classes;
}

Using the logging module you can automatically add the current thread identifier in each log entry. Just use one of these LogRecord mapping keys in your logger format string:

%(thread)d : Thread ID (if available).

%(threadName)s : Thread name (if available).

and set up your default handler with it:

logging.basicConfig(format="%(threadName)s:%(message)s")

I had this same issue on Windows 10. I bypassed it by running the Docker daemon in experimental mode:

1. Right click Docker icon in the Windows System Tray
2. Go to Settings
3. Daemon
4. Advanced
5. Set the "experimental": true
6. Restart Docker

In C#, unlike VB.NET and Java, you can't access static members with instance syntax. You should do:

MyClass.MyItem.Property1

to refer to that property or remove the static modifier from Property1 (which is what you probably want to do). For a conceptual idea about what static is, see my other answer.

Scrolling the page to the near by point mentioned in the exception did the trick for me. Below is code snippet:

$wd_host = 'http://localhost:4444/wd/hub';
$capabilities =
    [
        \WebDriverCapabilityType::BROWSER_NAME => 'chrome',
        \WebDriverCapabilityType::PROXY => [
            'proxyType' => 'manual',
            'httpProxy' => PROXY_DOMAIN.':'.PROXY_PORT,
            'sslProxy' => PROXY_DOMAIN.':'.PROXY_PORT,
            'noProxy' =>  PROXY_EXCEPTION // to run locally
        ],
    ];
$webDriver = \RemoteWebDriver::create($wd_host, $capabilities, 250000, 250000);
...........
...........
// Wait for 3 seconds
$webDriver->wait(3);
// Scrolls the page vertically by 70 pixels 
$webDriver->executeScript("window.scrollTo(0, 70);");

NOTE: I use Facebook php webdriver

You could set it up as a Scheduled Task, and set the Task Trigger for "At Startup"

It's the ternary form of the if-else operator. The above statement basically reads like this:

if ($add_review) then {
    return FALSE; //$add_review evaluated as True
} else {
    return $arg //$add_review evaluated as False
}

See here for more details on ternary op in PHP: http://www.addedbytes.com/php/ternary-conditionals/

Create a .o file:

g++ -c header.cpp

add this file to a library, creating library if necessary:

ar rvs header.a header.o

use library:

g++ main.cpp header.a

This is how i did it

internal static Type GetElementType(this Type type)
{
        //use type.GenericTypeArguments if exist 
        if (type.GenericTypeArguments.Any())
         return type.GenericTypeArguments.First();

         return type.GetRuntimeProperty("Item").PropertyType);
}

Then call it like this

var item = Activator.CreateInstance(iListType.GetElementType());

OR

var item = Activator.CreateInstance(Bar.GetType().GetElementType());

You could also use

df['bar'] = df['bar'].str.cat(df['foo'].values.astype(str), sep=' is ')

First of all, there are cases when object construction is a task complex enough to justify its extraction to another class.

I believe this point is incorrect. The complexity doesn't really matter. The relevance is what does. If an object can be constructed in one step (not like in the builder pattern), the constructor is the right place to do it. If you really need another class to perform the job, then it should be a helper class that is used from the constructor anyway.

Vec2(float x, float y);
Vec2(float angle, float magnitude); // not a valid overload!

There is an easy workaround for this:

struct Cartesian {
  inline Cartesian(float x, float y): x(x), y(y) {}
  float x, y;
};
struct Polar {
  inline Polar(float angle, float magnitude): angle(angle), magnitude(magnitude) {}
  float angle, magnitude;
};
Vec2(const Cartesian &cartesian);
Vec2(const Polar &polar);

The only disadvantage is that it looks a bit verbose:

Vec2 v2(Vec2::Cartesian(3.0f, 4.0f));

But the good thing is that you can immediately see what coordinate type you're using, and at the same time you don't have to worry about copying. If you want copying, and it's expensive (as proven by profiling, of course), you may wish to use something like Qt's shared classes to avoid copying overhead.

As for the allocation type, the main reason to use the factory pattern is usually polymorphism. Constructors can't be virtual, and even if they could, it wouldn't make much sense. When using static or stack allocation, you can't create objects in a polymorphic way because the compiler needs to know the exact size. So it works only with pointers and references. And returning a reference from a factory doesn't work too, because while an object technically can be deleted by reference, it could be rather confusing and bug-prone, see Is the practice of returning a C++ reference variable, evil? for example. So pointers are the only thing that's left, and that includes smart pointers too. In other words, factories are most useful when used with dynamic allocation, so you can do things like this:

class Abstract {
  public:
    virtual void do() = 0;
};

class Factory {
  public:
    Abstract *create();
};

Factory f;
Abstract *a = f.create();
a->do();

In other cases, factories just help to solve minor problems like those with overloads you have mentioned. It would be nice if it was possible to use them in a uniform way, but it doesn't hurt much that it is probably impossible.

It works with Android Studio 1.2 + OpenCV-2.4.11-android-sdk (.zip), too.

Just do the following:

1) Follow the answer that starts with "You can do this very easily in Android Studio. Follow the steps below to add OpenCV in your project as library." by TGMCians.

2) Modify in the <yourAppDir>\libraries\opencv folder your newly created build.gradle to (step 4 in TGMCians' answer, adapted to OpenCV2.4.11-android-sdk and using gradle 1.1.0):

apply plugin: 'android-library'

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.1.0'
    }
}

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        minSdkVersion 8
        targetSdkVersion 21
        versionCode 2411
        versionName "2.4.11"
    }

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            res.srcDirs = ['res']
            aidl.srcDirs = ['src']
        }
    }
}

3) *.so files that are located in the directories "armeabi", "armeabi-v7a", "mips", "x86" can be found under (default OpenCV-location): ..\OpenCV-2.4.11-android-sdk\OpenCV-android-sdk\sdk\native\libs (step 9 in TGMCians' answer).

Enjoy and if this helped, please give a positive reputation. I need 50 to answer directly to answers (19 left) :)

If you're looking to generate a single error message string that contains the ModelState error messages you can use SelectMany to flatten the errors into a single list:

if (!ModelState.IsValid)
{
    var message = string.Join(" | ", ModelState.Values
        .SelectMany(v => v.Errors)
        .Select(e => e.ErrorMessage));
    return new HttpStatusCodeResult(HttpStatusCode.BadRequest, message);
}

It depends on the jQuery selector that you use. Since id should be unique within the DOM, the first one would be simple:

$('#Comanda').hide();

The second one might require something more, depending on the other elements and how to uniquely identify it. If the name of that particular input is unique, then this would work:

$('input[name="Vizualizeaza"]').hide();

By Default it stores to:    

String DATABASE_PATH = "/data/data/" + PACKAGE_NAME + "/databases/" + DATABASE_NAME;

Where:

String DATABASE_NAME = "your_dbname";
String PACKAGE_NAME = "com.example.your_app_name";

And check whether your database is stored to Device Storage. If So, You have to use permission in Manifest.xml :

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

The session is a server side thing, you cannot access it using jQuery. You can write an Http handler (that will share the sessionid if any) and return the value from there using $.ajax.

Add following css to your .validate method to change the css or functionality

 errorElement: "div",
    wrapper: "div",
    errorPlacement: function(error, element) {
        offset = element.offset();
        error.insertAfter(element)
        error.css('color','red');
    }

Using Accept header is really easy to get the format json or xml from the REST service.

This is my Controller, take a look produces section.

@RequestMapping(value = "properties", produces = {MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE}, method = RequestMethod.GET)
    public UIProperty getProperties() {
        return uiProperty;
    }

In order to consume the REST service we can use the code below where header can be MediaType.APPLICATION_JSON_VALUE or MediaType.APPLICATION_XML_VALUE

HttpHeaders headers = new HttpHeaders();
headers.add("Accept", header);

HttpEntity entity = new HttpEntity(headers);

RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> response = restTemplate.exchange("http://localhost:8080/properties", HttpMethod.GET, entity,String.class);
return response.getBody();

Edit 01:

In order to work with application/xml, add this dependency

<dependency>
    <groupId>com.fasterxml.jackson.dataformat</groupId>
    <artifactId>jackson-dataformat-xml</artifactId>
</dependency>

Using some simple command line (bash scripting):

$ cat /dev/urandom | tr -cd 'a-z0-9,.?/\-' | head -c 30 | xargs
t315,qeqaszwz6kxv?761rf.cj/7gc

$ cat /dev/urandom | tr -cd 'a-z0-9,.?/\-' | head -c 1 | xargs
f

• cat /dev/urandom: get a random stream of char from the kernel
• tr: keep only char char we want
• head: take only the first n chars
• xargs: just for adding a '\n' char

NIO copy with a buffer is the fastest according to my test. See the working code below from a test project of mine at https://github.com/mhisoft/fastcopy

import java.io.Closeable;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.text.DecimalFormat;


public class test {

private static final int BUFFER = 4096*16;
static final DecimalFormat df = new DecimalFormat("#,###.##");
public static void nioBufferCopy(final File source, final File target )  {
    FileChannel in = null;
    FileChannel out = null;
    double  size=0;
    long overallT1 =  System.currentTimeMillis();

    try {
        in = new FileInputStream(source).getChannel();
        out = new FileOutputStream(target).getChannel();
        size = in.size();
        double size2InKB = size / 1024 ;
        ByteBuffer buffer = ByteBuffer.allocateDirect(BUFFER);

        while (in.read(buffer) != -1) {
            buffer.flip();

            while(buffer.hasRemaining()){
                out.write(buffer);
            }

            buffer.clear();
        }
        long overallT2 =  System.currentTimeMillis();
        System.out.println(String.format("Copied %s KB in %s millisecs", df.format(size2InKB),  (overallT2 - overallT1)));
    }
    catch (IOException e) {
        e.printStackTrace();
    }

    finally {
        close(in);
        close(out);
    }
}

private static void close(Closeable closable)  {
    if (closable != null) {
        try {
            closable.close();
        } catch (IOException e) {
            if (FastCopy.debug)
                e.printStackTrace();
        }    
    }
}

}

While there are many correct answers here, many of them do not address the fact that this is an unnecessarily expensive operation if done more than once. In an extreme case this could be the cause of real performance problems.

In the real world, if you are processing a lot of items and performance is a concern it's much faster to initially build a lookup:

var items = [{'id':'73','foo':'bar'},{'id':'45','foo':'bar'}];

var lookup = items.reduce((o,i)=>o[i.id]=o,{});

you can then get at items in fixed time like this :

var bar = o[id];

You might also consider using a Map instead of an object as the lookup: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Map

Ruby 2.4 has Regexp#match?: (with a ?)

def integer?(str)
  /\A[+-]?\d+\z/.match? str
end

For older Ruby versions, there's Regexp#===. And although direct use of the case equality operator should generally be avoided, it looks very clean here:

def integer?(str)
  /\A[+-]?\d+\z/ === str
end

integer? "123"    # true
integer? "-123"   # true
integer? "+123"   # true

integer? "a123"   # false
integer? "123b"   # false
integer? "1\n2"   # false

Here's an answer to the above, that's both simple and also works with JSON results being returned. While the SQL query will automatically prefix table names to each instance of identical field names when you use SELECT *, JSON encoding of the result to send back to the webpage, ignores the values of those fields with a duplicate name and instead returns a NULL value.

Precisely what it does is include the first instance of the duplicated field name, but makes its value NULL. And the second instance of the field name (in the other table) is omitted entirely, both field name and value. But, when you test the query directly on the database (such as using Navicat), all fields are returned in the result set. It's only when you next do JSON encoding of that result, do they have NULL values and subsequent duplicate names are omitted entirely.

So, an easy way to fix that problem is to first do a SELECT *, then follow with aliased fields for the duplicates. Here's an example, where both tables have identically named site_name fields.

SELECT *, w.site_name AS wo_site_name FROM ws_work_orders w JOIN ws_inspections i WHERE w.hma_num NOT IN(SELECT hma_number FROM ws_inspections) ORDER BY CAST(w.hma_num AS UNSIGNED);

Now in the decoded JSON, you can use the field wo_site_name and it has a value. In this case, site names have special characters such as apostrophes and single quotes, hence the encoding when originally saving, and the decoding when using the result from the database.

...decHTMLifEnc(decodeURIComponent( jsArrInspections[x]["wo_site_name"]))

You must always put the * first in the SELECT statement, but after it you can include as many named and aliased columns as you want, as repeatedly selecting a column causes no problem.

See the documentation on MDN about expressions and operators and statements.

Basic keywords and general expressions

this keyword:

• How does the "this" keyword work?

var x = function() vs. function x() — Function declaration syntax

• var functionName = function() {} vs function functionName() {}

(function(){…})() — IIFE (Immediately Invoked Function Expression)

• What is the purpose?, How is it called?
• Why does (function(){…})(); work but function(){…}(); doesn't?
• (function(){…})(); vs (function(){…}());
• shorter alternatives:
  • !function(){…}(); - What does the exclamation mark do before the function?
  • +function(){…}(); - JavaScript plus sign in front of function expression
  • !function(){ }() vs (function(){ })(), ! vs leading semicolon
• (function(window, undefined){…}(window));

someFunction()() — Functions which return other functions

• Two sets of parentheses after function call

=> — Equal sign, greater than: arrow function expression syntax

• What's the meaning of "=>" (an arrow formed from equals & greater than) in JavaScript?

|> — Pipe, greater than: Pipeline operator

• What does the "|>" operator do in Javascript?

function*, yield, yield* — Star after function or yield: generator functions

• What is "function*" in JavaScript?
• What's the yield keyword in JavaScript?
• Delegated yield (yield star, yield *) in generator functions

[], Array() — Square brackets: array notation

• What’s the difference between "Array()" and "[]" while declaring a JavaScript array?
• What is array literal notation in javascript and when should you use it?

If the square brackets appear on the left side of an assignment ([a] = ...), or inside a function's parameters, it's a destructuring assignment.

{key: value} — Curly brackets: object literal syntax (not to be confused with blocks)

• What do curly braces in JavaScript mean?
• Javascript object literal: what exactly is {a, b, c}?
• What do square brackets around a property name in an object literal mean?

If the curly brackets appear on the left side of an assignment ({ a } = ...) or inside a function's parameters, it's a destructuring assignment.

`…${…}…` — Backticks, dollar sign with curly brackets: template literals

• What does this `…${…}…` code from the node docs mean?
• Usage of the backtick character (`) in JavaScript?
• What is the purpose of template literals (backticks) following a function in ES6?

/…/ — Slashes: regular expression literals

• Meaning of javascript text between two slashes

$ — Dollar sign in regex replace patterns: $$, $&, $`, $', $n

• JavaScript replace() method dollar signs

() — Parentheses: grouping operator

• MDN: Grouping operator

Property-related expressions

obj.prop, obj[prop], obj["prop"] — Square brackets or dot: property accessors

• JavaScript property access: dot notation vs. brackets?

?., ?.[], ?.() — Question mark, dot: optional chaining operator

• Question mark after parameter
• Null-safe property access (and conditional assignment) in ES6/2015
• Optional Chaining in JavaScript
• Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
• Is there a "null coalescing" operator in JavaScript?

:: — Double colon: bind operator

• JavaScript double colon (bind operator)

new operator

• What is the 'new' keyword in JavaScript?
• What is "new.target"?

...iter — Three dots: spread syntax; rest parameters

• (...args) => {} — What is the meaning of “…args” (three dots) in a function definition?
• [...iter] — javascript es6 array feature […data, 0] “spread operator”
• {...props} — Javascript Property with three dots (…)

Increment and decrement

++, -- — Double plus or minus: pre- / post-increment / -decrement operators

• ++someVariable vs someVariable++ in Javascript

Unary and binary (arithmetic, logical, bitwise) operators

delete operator

• What is the purpose of the delete operator in Javascript?

void operator

• What does `void 0` mean?

+, - — Plus and minus: addition or concatenation, and subtraction operators; unary sign operators

• What does = +_ mean in JavaScript, Single plus operator in javascript
• What's the significant use of unary plus and minus operators?
• Why is [1,2] + [3,4] = "1,23,4" in JavaScript?
• Why does JavaScript handle the plus and minus operators between strings and numbers differently?

|, &, ^, ~ — Single pipe, ampersand, circumflex, tilde: bitwise OR, AND, XOR, & NOT operators

• What do these JavaScript bitwise operators do?
• How to: The ~ operator?
• Is there a & logical operator in Javascript
• What does the "|" (single pipe) do in JavaScript?
• What does the operator |= do in JavaScript?
• What does the ^ (caret) symbol do in JavaScript?
• Using bitwise OR 0 to floor a number, How does x|0 floor the number in JavaScript?
• Why does ~1 equal -2?
• What does ~~ ("double tilde") do in Javascript?
• How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method call? (also here and here)

% — Percent sign: remainder operator

• What does % do in JavaScript?

&&, ||, ! — Double ampersand, double pipe, exclamation point: logical operators

• Logical operators in JavaScript — how do you use them?
• Logical operator || in javascript, 0 stands for Boolean false?
• What does "var FOO = FOO || {}" (assign a variable or an empty object to that variable) mean in Javascript?, JavaScript OR (||) variable assignment explanation, What does the construct x = x || y mean?
• Javascript AND operator within assignment
• What is "x && foo()"? (also here and here)
• What is the !! (not not) operator in JavaScript?
• What is an exclamation point in JavaScript?

?? — Double question mark: nullish-coalescing operator

• How is the nullish coalescing operator (??) different from the logical OR operator (||) in ECMAScript?
• Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
• Is there a "null coalescing" operator in JavaScript?

** — Double star: power operator (exponentiation)

• x ** 2 is equivalent to Math.pow(x, 2)
• Is the double asterisk ** a valid JavaScript operator?
• MDN documentation

Equality operators

==, === — Equal signs: equality operators

• Which equals operator (== vs ===) should be used in JavaScript comparisons?
• How does JS type coercion work?
• In Javascript, <int-value> == "<int-value>" evaluates to true. Why is it so?
• [] == ![] evaluates to true
• Why does "undefined equals false" return false?
• Why does !new Boolean(false) equals false in JavaScript?
• Javascript 0 == '0'. Explain this example
• Why false == "false" is false?

!=, !== — Exclamation point and equal signs: inequality operators

• != vs. !==
• What is the difference between != and !== operators in JavaScript?

Bit shift operators

<<, >>, >>> — Two or three angle brackets: bit shift operators

• What do these JavaScript bitwise operators do?
• Double more-than symbol in JavaScript
• What is the JavaScript >>> operator and how do you use it?

Conditional operator

…?…:… — Question mark and colon: conditional (ternary) operator

• Question mark and colon in JavaScript
• Operator precedence with Javascript Ternary operator
• How do you use the ? : (conditional) operator in JavaScript?

Assignment operators

= — Equal sign: assignment operator

• In javascript == vs =?

%= — Percent equals: remainder assignment

• Having Confusion with Modulo operator

+= — Plus equals: addition assignment operator

• How does += (plus equal) work?

&&=, ||=, ??= — Double ampersand, pipe, or question mark, followed by equal sign: logical assignments

• Replace a value if null or undefined in JavaScript
• Set a variable if undefined
• Ruby’s ||= (or equals) in JavaScript?
• Original proposal
• Specification

Destructuring

• of function parameters: Where can I get info on the object parameter syntax for JavaScript functions?
• of arrays: Multiple assignment in javascript? What does [a,b,c] = [1, 2, 3]; mean?
• of objects/imports: Javascript object bracket notation ({ Navigation } =) on left side of assign

Comma operator

, — Comma operator

• What does a comma do in JavaScript expressions?
• Comma operator returns first value instead of second in argument list?
• When is the comma operator useful?

Control flow

{…} — Curly brackets: blocks (not to be confused with object literal syntax)

• JavaScript curly braces with no function or json

Declarations

var, let, const — Declaring variables

• What's the difference between using "let" and "var"?
• Are there constants in JavaScript?
• What is the temporal dead zone?

Label

label: — Colon: labels

• What does the JavaScript syntax foo: mean?
• What does ':' (colon) do in JavaScript?

# — Hash (number sign): Private methods or private fields

• What does the # symbol do in JavaScript?

table { width: 100%; }

Will not produce the exact result you are expecting, because of all the margins and paddings used in body. So IF scripts are OKAY, then use Jquery.

$("#tableid").width($(window).width());

If not, use this snippet

<style>
    body { margin:0;padding:0; }
</style>
<table width="100%" border="1">
    <tr>
        <td>Just a Test
        </td>
    </tr>
</table>

You will notice that the width is perfectly covering the page.

The main thing is too nullify the margin and padding as I have shown at the body, then you are set.

Refer to Microsoft vscode-tips-and-tricks. Just run these commands in your terminal:

git config --global merge.tool code

But firstly you need add code command to your PATH.

JavaScript developers tend to refer to the above data-structure as either an object or hash instead of a Dictionary.

Your syntax above is wrong as you are initializing the users object as null. I presume this is a typo, as the code should read:

// Initialize users as a new hash.
var users = {};
users["182982"] = "...";

To retrieve all the values from a hash, you need to iterate over it using a for loop:

function getValues (hash) {
    var values = [];
    for (var key in hash) {

        // Ensure that the `key` is actually a member of the hash and not
        // a member of the `prototype`.
        // see: http://javascript.crockford.com/code.html#for%20statement
        if (hash.hasOwnProperty(key)) {
            values.push(key);
        }
    }
    return values;
};

If you plan on doing a lot of work with data-structures in JavaScript then the underscore.js library is definitely worth a look. Underscore comes with a values method which will perform the above task for you:

var values = _.values(users);

I don't use Angular myself, but I'm pretty sure there will be a convenience method build in for iterating over a hash's values (ah, there we go, Artem Andreev provides the answer above :))

From what I've read on Mozilla's JS pages, getYear is deprecated. As pointed out many times, getFullYear() is the way to go. If you're really wanting to use getYear() add 1900 to it.

var now = new Date(),
    year = now.getYear() + 1900;

Give the parent a style of overflow: hidden. If it is overlapping sibling elements, you will have to put it inside of a container with a fixed height/width and give that a style of overflow: hidden.

After testing different proposals, I found that the easiest way is often the best.

If you use angular ui-router and that you need a button to go back best is this:

<button onclick="history.back()">Back</button>

or

<a onclick="history.back()>Back</a>

// Warning don't set the href or the path will be broken.

Explanation: Suppose a standard management application. Search object -> View object -> Edit object

Using the angular solutions From this state :

Search -> View -> Edit

To :

Search -> View

Well that's what we wanted except if now you click the browser back button you'll be there again :

Search -> View -> Edit

And that is not logical

However using the simple solution

<a onclick="history.back()"> Back </a>

from :

Search -> View -> Edit

after click on button :

Search -> View

after click on browser back button :

Search

Consistency is respected. :-)

Hash === @some_var #=> return Boolean

this can also be used with case statement

case @some_var
when Hash
   ...
when Array
   ...
end

In PHP, both 'my name' and "my name" are string. You can read more about it at the PHP manual.

Thing you should know are

$a = 'name';
$b = "my $a"; == 'my name'
$c = 'my $a'; != 'my name'

In PHP, people use single quote to define a constant string, like 'a', 'my name', 'abc xyz', while using double quote to define a string contain identifier like "a $b $c $d".

And other thing is,

echo 'my name';

is faster than

echo "my name";

but

echo 'my ' . $a;

is slower than

echo "my $a";

This is true for other used of string.

int cores = Runtime.getRuntime().availableProcessors();

If cores is less than one, either your processor is about to die, or your JVM has a serious bug in it, or the universe is about to blow up.

I agree with the other answerers that in most cases (almost always) it is necessary to sanitize Your input.

But consider such code (it is for a REST controller):

$method = $_SERVER['REQUEST_METHOD'];

switch ($method) {
            case 'GET':
                return $this->doGet($request, $object);
            case 'POST':
                return $this->doPost($request, $object);
            case 'PUT':
                return $this->doPut($request, $object);
            case 'DELETE':
                return $this->doDelete($request, $object);
            default:
                return $this->onBadRequest();
}

It would not be very useful to apply sanitizing here (although it would not break anything, either).

So, follow recommendations, but not blindly - rather understand why they are for :)

Assignment

For no particular reason, arrays cannot be assigned to one another. Use std::copy instead:

#include <algorithm>

// ...

int a[8] = {2, 3, 5, 7, 11, 13, 17, 19};
int b[8];
std::copy(a + 0, a + 8, b);

This is more flexible than what true array assignment could provide because it is possible to copy slices of larger arrays into smaller arrays. std::copy is usually specialized for primitive types to give maximum performance. It is unlikely that std::memcpy performs better. If in doubt, measure.

Although you cannot assign arrays directly, you can assign structs and classes which contain array members. That is because array members are copied memberwise by the assignment operator which is provided as a default by the compiler. If you define the assignment operator manually for your own struct or class types, you must fall back to manual copying for the array members.

Parameter passing

Arrays cannot be passed by value. You can either pass them by pointer or by reference.

Pass by pointer

Since arrays themselves cannot be passed by value, usually a pointer to their first element is passed by value instead. This is often called "pass by pointer". Since the size of the array is not retrievable via that pointer, you have to pass a second parameter indicating the size of the array (the classic C solution) or a second pointer pointing after the last element of the array (the C++ iterator solution):

#include <numeric>
#include <cstddef>

int sum(const int* p, std::size_t n)
{
    return std::accumulate(p, p + n, 0);
}

int sum(const int* p, const int* q)
{
    return std::accumulate(p, q, 0);
}

As a syntactic alternative, you can also declare parameters as T p[], and it means the exact same thing as T* p in the context of parameter lists only:

int sum(const int p[], std::size_t n)
{
    return std::accumulate(p, p + n, 0);
}

You can think of the compiler as rewriting T p[] to T *p in the context of parameter lists only. This special rule is partly responsible for the whole confusion about arrays and pointers. In every other context, declaring something as an array or as a pointer makes a huge difference.

Unfortunately, you can also provide a size in an array parameter which is silently ignored by the compiler. That is, the following three signatures are exactly equivalent, as indicated by the compiler errors:

int sum(const int* p, std::size_t n)

// error: redefinition of 'int sum(const int*, size_t)'
int sum(const int p[], std::size_t n)

// error: redefinition of 'int sum(const int*, size_t)'
int sum(const int p[8], std::size_t n)   // the 8 has no meaning here

Pass by reference

Arrays can also be passed by reference:

int sum(const int (&a)[8])
{
    return std::accumulate(a + 0, a + 8, 0);
}

In this case, the array size is significant. Since writing a function that only accepts arrays of exactly 8 elements is of little use, programmers usually write such functions as templates:

template <std::size_t n>
int sum(const int (&a)[n])
{
    return std::accumulate(a + 0, a + n, 0);
}

Note that you can only call such a function template with an actual array of integers, not with a pointer to an integer. The size of the array is automatically inferred, and for every size n, a different function is instantiated from the template. You can also write quite useful function templates that abstract from both the element type and from the size.

TempData is a bucket where you can dump data that is only needed for the following request. That is, anything you put into TempData is discarded after the next request completes. This is useful for one-time messages, such as form validation errors. The important thing to take note of here is that this applies to the next request in the session, so that request can potentially happen in a different browser window or tab.

To answer your specific question: there's no right way to use it. It's all up to usability and convenience. If it works, makes sense and others are understanding it relatively easy, it's good. In your particular case, the passing of a parameter this way is fine, but it's strange that you need to do that (code smell?). I'd rather keep a value like this in resources (if it's a resource) or in the database (if it's a persistent value). From your usage, it seems like a resource, since you're using it for the page title.

Hope this helps.

Sorry this answer sucks, but you can't launch an just any external application via a click, as this would be a serious security issue, this functionality isn't available in HTML or javascript. Think of just launching cmd.exe with args...you want to launch WinMerge with arguments, but you can see the security problems introduced by allowing this for anything.

The only possibly viable exception I can think of would be a protocol handler (since these are explicitly defined handlers), like winmerge://, though the best way to pass 2 file parameters I'm not sure of, if it's an option it's worth looking into, but I'm not sure what you are or are not allowed to do to the client, so this may be a non-starter solution.

position: fixed;

Will make this happen.

It handles like position:absolute; with the exception that it will scroll with the window as the user scrolls down the content.

This is an old post, but I thought I'd give an example using an ExtensionMethod (since C# 3.0), since this will hide the implementation and allow for use everywhere in the project instead or recreating the code over and over or needing to be aware of some utility class.

Extension methods enable you to "add" methods to existing types without creating a new derived type, recompiling, or otherwise modifying the original type. Extension methods are a special kind of static method, but they are called as if they were instance methods on the extended type. For client code written in C# and Visual Basic, there is no apparent difference between calling an extension method and the methods that are actually defined in a type.

public static class DateTimeExtensions
    {
        public static int ToYearLastTwoDigit(this DateTime date)
        {
            var temp = date.ToString("yy");
            return int.Parse(temp);
        }
    }

You can then call this method anywhere you use a DateTime object, for example...

var dateTime = new DateTime(2015, 06, 19);
var year = cob.ToYearLastTwoDigit();

Change in config.php like this.

$base_url = ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == "on") ? "https" : "http");
$base_url .= "://". @$_SERVER['HTTP_HOST'];
$base_url .= str_replace(basename($_SERVER['SCRIPT_NAME']),"",$_SERVER['SCRIPT_NAME']);
$config['base_url'] = $base_url;

You can use Task Scheduler Managed Wrapper:

using System;
using Microsoft.Win32.TaskScheduler;

class Program
{
   static void Main(string[] args)
   {
      // Get the service on the local machine
      using (TaskService ts = new TaskService())
      {
         // Create a new task definition and assign properties
         TaskDefinition td = ts.NewTask();
         td.RegistrationInfo.Description = "Does something";

         // Create a trigger that will fire the task at this time every other day
         td.Triggers.Add(new DailyTrigger { DaysInterval = 2 });

         // Create an action that will launch Notepad whenever the trigger fires
         td.Actions.Add(new ExecAction("notepad.exe", "c:\\test.log", null));

         // Register the task in the root folder
         ts.RootFolder.RegisterTaskDefinition(@"Test", td);

         // Remove the task we just created
         ts.RootFolder.DeleteTask("Test");
      }
   }
}

Alternatively you can use native API or go for Quartz.NET. See this for details.

If you are programming in PHP, it is useful to split lines by \n and then trim() each line (provided you don't care about whitespace) to give you a "clean" line regardless.

foreach($line in explode("\n", $data))
{
    $line = trim($line);
    ...
}

This isn't an answer. I just want to show that IF NOT EXISTS(...) INSERT method isn't safe. You have to execute first Session #1 and then Session #2. After v #2 you will see that without an UNIQUE index you could get duplicate pairs (SoftwareName,SoftwareSystemType). Delay from session #1 is used to give you enough time to execute the second script (session #2). You could reduce this delay.

Session #1 (SSMS > New Query > F5 (Execute))

CREATE DATABASE DemoEXISTS;
GO
USE DemoEXISTS;
GO
CREATE TABLE dbo.Software(
    SoftwareID INT PRIMARY KEY,
    SoftwareName NCHAR(400) NOT NULL,  
    SoftwareSystemType NVARCHAR(50) NOT NULL
);
GO

INSERT INTO dbo.Software(SoftwareID,SoftwareName,SoftwareSystemType)
VALUES (1,'Dynamics AX 2009','ERP');
INSERT INTO dbo.Software(SoftwareID,SoftwareName,SoftwareSystemType)
VALUES (2,'Dynamics NAV 2009','SCM');
INSERT INTO dbo.Software(SoftwareID,SoftwareName,SoftwareSystemType)
VALUES (3,'Dynamics CRM 2011','CRM');
INSERT INTO dbo.Software(SoftwareID,SoftwareName,SoftwareSystemType)
VALUES (4,'Dynamics CRM 2013','CRM');
INSERT INTO dbo.Software(SoftwareID,SoftwareName,SoftwareSystemType)
VALUES (5,'Dynamics CRM 2015','CRM');
GO
/*
CREATE UNIQUE INDEX IUN_Software_SoftwareName_SoftareSystemType
ON dbo.Software(SoftwareName,SoftwareSystemType);
GO
*/

-- Session #1
BEGIN TRANSACTION;
    UPDATE  dbo.Software
    SET     SoftwareName='Dynamics CRM',
            SoftwareSystemType='CRM'    
    WHERE   SoftwareID=5;

    WAITFOR DELAY '00:00:15' -- 15 seconds delay; you have less than 15 seconds to switch SSMS window to session #2

    UPDATE  dbo.Software
    SET     SoftwareName='Dynamics AX',
            SoftwareSystemType='ERP'
    WHERE   SoftwareID=1;
COMMIT
--ROLLBACK
PRINT 'Session #1 results:';
SELECT *
FROM dbo.Software;

Session #2 (SSMS > New Query > F5 (Execute))

USE DemoEXISTS;
GO
-- Session #2
DECLARE 
    @SoftwareName NVARCHAR(100),  
    @SoftwareSystemType NVARCHAR(50);
SELECT
    @SoftwareName=N'Dynamics AX',
    @SoftwareSystemType=N'ERP';

PRINT 'Session #2 results:';
IF NOT EXISTS(SELECT *
    FROM dbo.Software s
    WHERE s.SoftwareName=@SoftwareName 
    AND s.SoftwareSystemType=@SoftwareSystemType)
BEGIN
    PRINT 'Session #2: INSERT';

    INSERT INTO dbo.Software(SoftwareID,SoftwareName,SoftwareSystemType)
    VALUES (6,@SoftwareName,@SoftwareSystemType);
END 
PRINT 'Session #2: FINISH';
SELECT  * 
FROM    dbo.Software;

Results:

Session #1 results:
SoftwareID  SoftwareName      SoftwareSystemType
----------- ----------------- ------------------
1           Dynamics AX       ERP
2           Dynamics NAV 2009 SCM
3           Dynamics CRM 2011 CRM
4           Dynamics CRM 2013 CRM
5           Dynamics CRM      CRM

Session #2 results:
Session #2: INSERT
Session #2: FINISH
SoftwareID  SoftwareName      SoftwareSystemType
----------- ----------------- ------------------
1           Dynamics AX       ERP <-- duplicate (row updated by session #1)
2           Dynamics NAV 2009 SCM
3           Dynamics CRM 2011 CRM
4           Dynamics CRM 2013 CRM
5           Dynamics CRM      CRM
6           Dynamics AX       ERP <-- duplicate (row inserted by session #2)

Using jQuery 1.9 and above:

$("#mySelect :selected").prop('selected', false);

Recent protocols prefer usage of RFC3339 per golang time package documentation.

In general RFC1123Z should be used instead of RFC1123 for servers that insist on that format, and RFC3339 should be preferred for new protocols. RFC822, RFC822Z, RFC1123, and RFC1123Z are useful for formatting; when used with time.Parse they do not accept all the time formats permitted by the RFCs.

cutOffTime, _ := time.Parse(time.RFC3339, "2017-08-30T13:35:00Z")
// POSTDATE is a date time field in DB (datastore)
query := datastore.NewQuery("db").Filter("POSTDATE >=", cutOffTime).

Node.js:

var fs = require('fs');
fs.writeFile("test.txt", jsonData, function(err) {
    if (err) {
        console.log(err);
    }
});

Browser (webapi):

function download(content, fileName, contentType) {
    var a = document.createElement("a");
    var file = new Blob([content], {type: contentType});
    a.href = URL.createObjectURL(file);
    a.download = fileName;
    a.click();
}
download(jsonData, 'json.txt', 'text/plain');

yum install nmap-ncat.x86_64

resolved my problem

SELECT field1 FROM OPENQUERY 
                   ([NameOfLinkedSERVER], 
                   'SELECT field1 FROM TABLENAME') 
                           WHERE field1=@someParameter T1 
                                 INNER JOIN MYSQLSERVER.DATABASE.DBO.TABLENAME           
                                 T2 ON T1.PK = T2.PK

It looks like your client is trying to connect to a non-existent server. In a shell window, run:

$ nc -l 5000

before running your Python code. It will act as a server listening on port 5000 for you to connect to. Then you can play with typing into your Python window and seeing it appear in the other terminal and vice versa.

Don't write if statements without a corresponding else. Once you add the else to your fragment you'll see that your true and false are in fact the last expressions of the function.

def balanceMain(elem: List[Char]): Boolean =
  {
    if (elem.isEmpty)
      if (count == 0)
        true
      else
        false
    else
      if (elem.head == '(')
        balanceMain(elem.tail, open, count + 1)
      else....

I think you should make a subquery to do grouping. In this case inner subquery returns few rows and you don't need a CASE statement. So I think this is going to be faster:

select Detail.ReceiptDate AS 'DATE',
       SUM(TotalMailed),
       SUM(TotalReturnMail),
       SUM(TraceReturnedMail)

from
(

select SentDate AS 'ReceiptDate', 
       count('TotalMailed') AS TotalMailed, 
       0 as TotalReturnMail, 
       0 as TraceReturnedMail
from MailDataExtract
where sentdate is not null
GROUP BY SentDate

UNION ALL
select MDE.ReturnMailDate AS 'ReceiptDate', 
       0 AS TotalMailed, 
       count(TotalReturnMail) as TotalReturnMail, 
       0 as TraceReturnedMail
from MailDataExtract MDE
where MDE.ReturnMailDate is not null
GROUP BY  MDE.ReturnMailDate

UNION ALL

select MDE.ReturnMailDate AS 'ReceiptDate', 
       0 AS TotalMailed, 
       0 as TotalReturnMail, 
       count(TraceReturnedMail) as TraceReturnedMail

from MailDataExtract MDE
    inner join DTSharedData.dbo.ScanData SD 
        ON SD.ScanDataID = MDE.ReturnScanDataID
   where MDE.ReturnMailDate is not null AND SD.ReturnMailTypeID = 1
GROUP BY MDE.ReturnMailDate

) as Detail
GROUP BY Detail.ReceiptDate
ORDER BY 1

Go to your Target or Project settings, click the Gear icon at the bottom left, and select "Add User-Defined Setting". The new setting name should be GCC_PREPROCESSOR_DEFINITIONS, and you can type your definitions in the right-hand field.

Per Steph's comments, the full syntax is:

constant_1=VALUE constant_2=VALUE

Note that you don't need the '='s if you just want to #define a symbol, rather than giving it a value (for #ifdef statements)

Span does not have 'change' event by default. But you can add this event manually.

Listen to the change event of span.

$("#span1").on('change',function(){
     //Do calculation and change value of other span2,span3 here
     $("#span2").text('calculated value');
});

And wherever you change the text in span1. Trigger the change event manually.

$("#span1").text('test').trigger('change'); 

You should use formControlName="surveyType" on an input and not on a div

Replaced the reader declaration with this one and now it works!

Dim reader As New StreamReader(filetoimport.Text, Encoding.Default)

Encoding.Default represents the ANSI code page that is set under Windows Control Panel.

Event listeners

First off it's important to understand that there are two kinds of "event listeners":

1. Scope event listeners registered via $on:

   $scope.$on('anEvent', function (event, data) {
     ...
   });
   

2. Event handlers attached to elements via for example on or bind:

   element.on('click', function (event) {
     ...
   });
   

$scope.$destroy()

When $scope.$destroy() is executed it will remove all listeners registered via $on on that $scope.

It will not remove DOM elements or any attached event handlers of the second kind.

This means that calling $scope.$destroy() manually from example within a directive's link function will not remove a handler attached via for example element.on, nor the DOM element itself.

element.remove()

Note that remove is a jqLite method (or a jQuery method if jQuery is loaded before AngularjS) and is not available on a standard DOM Element Object.

When element.remove() is executed that element and all of its children will be removed from the DOM together will all event handlers attached via for example element.on.

It will not destroy the $scope associated with the element.

To make it more confusing there is also a jQuery event called $destroy. Sometimes when working with third-party jQuery libraries that remove elements, or if you remove them manually, you might need to perform clean up when that happens:

element.on('$destroy', function () {
  scope.$destroy();
});

What to do when a directive is "destroyed"

This depends on how the directive is "destroyed".

A normal case is that a directive is destroyed because ng-view changes the current view. When this happens the ng-view directive will destroy the associated $scope, sever all the references to its parent scope and call remove() on the element.

This means that if that view contains a directive with this in its link function when it's destroyed by ng-view:

scope.$on('anEvent', function () {
 ...
});

element.on('click', function () {
 ...
});

Both event listeners will be removed automatically.

However, it's important to note that the code inside these listeners can still cause memory leaks, for example if you have achieved the common JS memory leak pattern circular references.

Even in this normal case of a directive getting destroyed due to a view changing there are things you might need to manually clean up.

For example if you have registered a listener on $rootScope:

var unregisterFn = $rootScope.$on('anEvent', function () {});

scope.$on('$destroy', unregisterFn);

This is needed since $rootScope is never destroyed during the lifetime of the application.

The same goes if you are using another pub/sub implementation that doesn't automatically perform the necessary cleanup when the $scope is destroyed, or if your directive passes callbacks to services.

Another situation would be to cancel $interval/$timeout:

var promise = $interval(function () {}, 1000);

scope.$on('$destroy', function () {
  $interval.cancel(promise);
});

If your directive attaches event handlers to elements for example outside the current view, you need to manually clean those up as well:

var windowClick = function () {
   ...
};

angular.element(window).on('click', windowClick);

scope.$on('$destroy', function () {
  angular.element(window).off('click', windowClick);
});

These were some examples of what to do when directives are "destroyed" by Angular, for example by ng-view or ng-if.

If you have custom directives that manage the lifecycle of DOM elements etc. it will of course get more complex.

I've had some success, although it relies on a few properties to work:

table-layout: fixed border-collapse: separate

and cell 'widths' that divide/span easily, i.e. 4 x cells of 25% width:

.div-table-cell,_x000D_
* {_x000D_
  box-sizing: border-box;_x000D_
}_x000D_
_x000D_
.div-table {_x000D_
  display: table;_x000D_
  border: solid 1px #ccc;_x000D_
  border-left: none;_x000D_
  border-bottom: none;_x000D_
  table-layout: fixed;_x000D_
  margin: 10px auto;_x000D_
  width: 50%;_x000D_
  border-collapse: separate;_x000D_
  background: #eee;_x000D_
}_x000D_
_x000D_
.div-table-row {_x000D_
  display: table-row;_x000D_
}_x000D_
_x000D_
.div-table-cell {_x000D_
  display: table-cell;_x000D_
  padding: 15px;_x000D_
  border-left: solid 1px #ccc;_x000D_
  border-bottom: solid 1px #ccc;_x000D_
  text-align: center;_x000D_
  background: #ddd;_x000D_
}_x000D_
_x000D_
.colspan-3 {_x000D_
  width: 300%;_x000D_
  display: table;_x000D_
  background: #eee;_x000D_
}_x000D_
_x000D_
.row-1 .div-table-cell:before {_x000D_
  content: "row 1: ";_x000D_
}_x000D_
_x000D_
.row-2 .div-table-cell:before {_x000D_
  content: "row 2: ";_x000D_
}_x000D_
_x000D_
.row-3 .div-table-cell:before {_x000D_
  content: "row 3: ";_x000D_
  font-weight: bold;_x000D_
}_x000D_
_x000D_
.div-table-row-at-the-top {_x000D_
  display: table-header-group;_x000D_
}

<div class="div-table">_x000D_
_x000D_
  <div class="div-table-row row-1">_x000D_
_x000D_
    <div class="div-table-cell">Cell 1</div>_x000D_
    <div class="div-table-cell">Cell 2</div>_x000D_
    <div class="div-table-cell">Cell 3</div>_x000D_
_x000D_
  </div>_x000D_
_x000D_
  <div class="div-table-row row-2">_x000D_
_x000D_
    <div class="div-table-cell colspan-3">_x000D_
      Cor blimey he's only gone and done it._x000D_
    </div>_x000D_
_x000D_
  </div>_x000D_
_x000D_
  <div class="div-table-row row-3">_x000D_
_x000D_
    <div class="div-table-cell">Cell 1</div>_x000D_
    <div class="div-table-cell">Cell 2</div>_x000D_
    <div class="div-table-cell">Cell 3</div>_x000D_
_x000D_
  </div>_x000D_
_x000D_
</div>

https://jsfiddle.net/sfjw26rb/2/

Also, applying display:table-header-group or table-footer-group is a handy way of jumping 'row' elements to the top/bottom of the 'table'.

I ran the code below, once with foo taking the shared_ptr by const& and again with foo taking the shared_ptr by value.

void foo(const std::shared_ptr<int>& p)
{
    static int x = 0;
    *p = ++x;
}

int main()
{
    auto p = std::make_shared<int>();
    auto start = clock();
    for (int i = 0; i < 10000000; ++i)
    {
        foo(p);
    }    
    std::cout << "Took " << clock() - start << " ms" << std::endl;
}

Using VS2015, x86 release build, on my intel core 2 quad (2.4GHz) processor

const shared_ptr&     - 10ms  
shared_ptr            - 281ms 

The copy by value version was an order of magnitude slower.
If you are calling a function synchronously from the current thread, prefer the const& version.

In Python 3 this is the default behavior, but if you aren't using that you can import division like so:

>>> from __future__ import division
>>> 144/314
0.4585987261146497

Alternatively you can cast one of the variables to a float when doing your division which will do the same thing

sum = 144
women_onboard = 314
proportion_womenclass3_survived = sum / float(np.size(women_onboard))

It looks like you override public Map<String, String> getHeaders(), defined in Request, to return your desired HTTP headers.

A more pythonic way, without using set is as follows:

lst = [1, 2, 3, 4]
lst.append(3) if 3 not in lst else lst

And for yet another option, I'd go with awk!

echo "foo bar <foo> bla 1 2 3.4" | awk '{ print $(NF-1), $NF; }'

This will split the input (I'm using STDIN here, but your input could easily be a file) on spaces, and then print out the last-but-one field, and then the last field. The $NF variables hold the number of fields found after exploding on spaces.

The benefit of this is that it doesn't matter if what precedes the last two fields changes, as long as you only ever want the last two it'll continue to work.

2 to 5 minutes to setup!

• Create your SSH keys (~/.ssh/)

ssh-keygen -C "[email protected]"

• Add the public key to Azure DevOps Services/TFS
• Clone the Git repository with SSH

Source

There is a attribute on every HTMLElement, "previousElementSibling".

Ex:

<div id="a">A</div>
<div id="b">B</div>
<div id="c">c</div>

<div id="result">Resultado: </div>

var b = document.getElementById("c").previousElementSibling;

document.getElementById("result").innerHTML += b.innerHTML;

Live: http://jsfiddle.net/QukKM/

DECLARE #MyTempTable TABLE (SiteName varchar(50), BillingMonth varchar(10), Consumption float)

INSERT INTO #MyTempTable (SiteName, BillingMonth, Consumption)
SELECT  tblMEP_Sites.Name AS SiteName, convert(varchar(10),BillingMonth ,101) AS BillingMonth, SUM(Consumption) AS Consumption
FROM tblMEP_Projects.......  --your joining statements

Here, # - use this to create table inside tempdb
@ - use this to create table as variable.

Use grequests , it's a combination of requests + Gevent module .

GRequests allows you to use Requests with Gevent to make asyncronous HTTP Requests easily.

Usage is simple:

import grequests

urls = [
   'http://www.heroku.com',
   'http://tablib.org',
   'http://httpbin.org',
   'http://python-requests.org',
   'http://kennethreitz.com'
]

Create a set of unsent Requests:

>>> rs = (grequests.get(u) for u in urls)

Send them all at the same time:

>>> grequests.map(rs)
[<Response [200]>, <Response [200]>, <Response [200]>, <Response [200]>, <Response [200]>]

concat.js is being included in the concat task's source files public/js/*.js. You could have a task that removes concat.js (if the file exists) before concatenating again, pass an array to explicitly define which files you want to concatenate and their order, or change the structure of your project.

If doing the latter, you could put all your sources under ./src and your built files under ./dest

src
+-- css
¦   +-- 1.css
¦   +-- 2.css
¦   +-- 3.css
+-- js
    +-- 1.js
    +-- 2.js
    +-- 3.js

Then set up your concat task

concat: {
  js: {
    src: 'src/js/*.js',
    dest: 'dest/js/concat.js'
  },
  css: {
    src: 'src/css/*.css',
    dest: 'dest/css/concat.css'
  }
},

Your min task

min: {
  js: {
    src: 'dest/js/concat.js',
    dest: 'dest/js/concat.min.js'
  }
},

The build-in min task uses UglifyJS, so you need a replacement. I found grunt-css to be pretty good. After installing it, load it into your grunt file

grunt.loadNpmTasks('grunt-css');

And then set it up

cssmin: {
  css:{
    src: 'dest/css/concat.css',
    dest: 'dest/css/concat.min.css'
  }
}

Notice that the usage is similar to the built-in min.

Change your default task to

grunt.registerTask('default', 'concat min cssmin');

Now, running grunt will produce the results you want.

dest
+-- css
¦   +-- concat.css
¦   +-- concat.min.css
+-- js
    +-- concat.js
    +-- concat.min.js

The first part is simple:

@property
def x(self): ...

is the same as

def x(self): ...
x = property(x)

• which, in turn, is the simplified syntax for creating a property with just a getter.

The next step would be to extend this property with a setter and a deleter. And this happens with the appropriate methods:

@x.setter
def x(self, value): ...

returns a new property which inherits everything from the old x plus the given setter.

x.deleter works the same way.

Are you sure you want to use __getattribute__? What are you actually trying to achieve?

The easiest way to do what you ask is:

class D(object):
    def __init__(self):
        self.test = 20
        self.test2 = 21

    test = 0

or:

class D(object):
    def __init__(self):
        self.test = 20
        self.test2 = 21

    @property
    def test(self):
        return 0

Edit: Note that an instance of D would have different values of test in each case. In the first case d.test would be 20, in the second it would be 0. I'll leave it to you to work out why.

Edit2: Greg pointed out that example 2 will fail because the property is read only and the __init__ method tried to set it to 20. A more complete example for that would be:

class D(object):
    def __init__(self):
        self.test = 20
        self.test2 = 21

    _test = 0

    def get_test(self):
        return self._test

    def set_test(self, value):
        self._test = value

    test = property(get_test, set_test)

Obviously, as a class this is almost entirely useless, but it gives you an idea to move on from.

Use a simple background image for the textarea suffice.

Or

<div onselectstart="return false">your text</div>

If using the following HTML:

<button id="submit-button"></button>

Style can be applied through JS using the style object available on an HTMLElement.

To set height and width to 200px of the above example button, this would be the JS:

var myButton = document.getElementById('submit-button');
myButton.style.height = '200px';
myButton.style.width= '200px';

I believe with this method, you are not directly writing CSS (inline or external), but using JavaScript to programmatically alter CSS Declarations.

if (grid.selectedKeyNames().length > 0) {
            $('#btnRemoveFromList').show();
        } else {
            $('#btnRemoveFromList').hide();
        }

}

() - calls the method

no parentheses - returns the property

Hi I followed following steps and I had been able to get the refresh token.

Authorization flow has two steps.

1. Is to obtain the authorization code using https://accounts.google.com/o/oauth2/auth? URL.

   For that a post request is sent providing following parameters. 'scope=' + SCOPE + '&client_id=' + CLIENTID + '&redirect_uri=' + REDIRECT + '&response_type=' + TYPE + '&access_type=offline' Providing above will receive a authorization code.

2. Retrieving AcessToken and RefreshToken using https://accounts.google.com/o/oauth2/token? URL. For that a post request is sent providing following parameters.

   "code" : code, "client_id" : CID, "client_secret" : CSECRET, "redirect_uri" : REDIRECT, "grant_type" : "authorization_code",

So in your first attempt once you authorize the permissions you will be able to get the Refresh token. Subsequent attempts will not provide the refresh token. If you want the token again the revoke the access in you application.

Hope this will help someone cheers :)

If you just want the difference in years, there's:

SELECT EXTRACT(YEAR FROM date1) - EXTRACT(YEAR FROM date2) FROM mytable

Or do you want fractional years as well?

SELECT (date1 - date2) / 365.242199 FROM mytable

365.242199 is 1 year in days, according to Google.

In Windows console (Linux, too), you should replace '\r' with its equivalent code \033[0G:

process.stdout.write('ok\033[0G');

This uses a VT220 terminal escape sequence to send the cursor to the first column.

For those not sure about which peak-finding algorithms to use in Python, here a rapid overview of the alternatives: https://github.com/MonsieurV/py-findpeaks

Wanting myself an equivalent to the MatLab findpeaks function, I've found that the detect_peaks function from Marcos Duarte is a good catch.

Pretty easy to use:

import numpy as np
from vector import vector, plot_peaks
from libs import detect_peaks
print('Detect peaks with minimum height and distance filters.')
indexes = detect_peaks.detect_peaks(vector, mph=7, mpd=2)
print('Peaks are: %s' % (indexes))

Which will give you:

Yes, use source or the short form which is just .:

. other_script.sh

you could use replaceAll instead of remove and append replaceAll

You should ensure the HTTP server headers are correct.

In particular, the header:

Content-Type: text/html; charset=utf-8

should be present.

The meta tag is ignored by browsers if the HTTP header is present.

Also ensure that your file is actually encoded as UTF-8 before serving it, check/try the following:

• Ensure your editor save it as UTF-8.
• Ensure your FTP or any file transfer program does not mess with the file.
• Try with HTML encoded entities, like &#uuu;.
• To be really sure, hexdump the file and look as the character, for the ?, it should be E2 9C 94 .

Note: If you use an unicode character for which your system can't find a glyph (no font with that character), your browser should display a question mark or some block like symbol. But if you see multiple roman characters like you do, this denotes an encoding problem.

Add this line to autoload.php in the application folder:

$autoload['time_zone'] = date_default_timezone_set('Asia/Kolkata');

This worked for me.

using System.IO;

//  

    string readStr = File.ReadAllText(file.FullName);          
    string[] read = readStr.Split(new char[] {'\r','\n'},StringSplitOptions.RemoveEmptyEntries);

Try this code:

String strProc =
         "DECLARE \n" +
         "   sys_date DATE;"+
         "" +
         "BEGIN\n" +
         "" +
         "   SELECT SYSDATE INTO sys_date FROM dual;\n" +
         "" +
         "END;\n";

try{
    DriverManager.registerDriver ( new oracle.jdbc.driver.OracleDriver () );
    Connection connection = DriverManager.getConnection ("jdbc:oracle:thin:@your_db_IP:1521:your_db_SID","user","password");  
    PreparedStatement psProcToexecute = connection.prepareStatement(strProc);
    psProcToexecute.execute();
}catch (Exception e) {
    System.out.println(e.toString());  
}

Get-Content has bad performance; it tries to read the file into memory all at once.

C# (.NET) file reader reads each line one by one

Best Performace

foreach($line in [System.IO.File]::ReadLines("C:\path\to\file.txt"))
{
       $line
}

Or slightly less performant

[System.IO.File]::ReadLines("C:\path\to\file.txt") | ForEach-Object {
       $_
}

The foreach statement will likely be slightly faster than ForEach-Object (see comments below for more information).

Another way to do this is to use the Ruby on Rails debugger. There's a Ruby on Rails guide about debugging at http://guides.rubyonrails.org/debugging_rails_applications.html

Basically, start the server with the -u option:

./script/server -u

And then insert a breakpoint into your script where you would like to have access to the controllers, helpers, etc.

class EventsController < ApplicationController
  def index
    debugger
  end
end

And when you make a request and hit that part in the code, the server console will return a prompt where you can then make requests, view objects, etc. from a command prompt. When finished, just type 'cont' to continue execution. There are also options for extended debugging, but this should at least get you started.

var img = new Image(1,1); // width, height values are optional params 
img.src = 'http://www.testtrackinglink.com';

RapidEXE is exactly for this job:

• SoftPedia page
  
• Author's original page

It converts a php project to a standalone exe. I had enough of all other compilers, tried them one by one and they all disappointed me one way or another. Be my guest, feedbacks are always welcome!

Side note: the mechanism behind it is quite similar to the WinRAR SFX approach; extract engine, extract source, then run. It's just faster and easier to work with. One-command compilation, compressed, smart unpack, auto cleanup, easy config, full control of php engine & version; also extensible with minimal effort.

Happy developing!

. matches any character so needs escaping i.e. \., or \\. within a Java string (because \ itself has special meaning within Java strings.)

You can then use \.\. or \.{2} to match exactly 2 dots.

Turning off the instant run(File >>Settings >>Build,Execution,Deployment >> Instant Run), solved my issue

Redirect iframe in parent window by iframe in the same parent:

window.parent.document.getElementById("content").src = "content.aspx?id=12";

Isn't this a much simpler solution, if I correctly understand the question, of course.

I want to load email addresses that are in a table called "spam" into a variable.

select email from spam

produces the following list, say:

.accountant
.bid
.buiilldanything.com
.club
.cn
.cricket
.date
.download
.eu

To load into the variable @list:

declare @list as varchar(8000)
set @list += @list (select email from spam)

@list may now be INSERTed into a table, etc.

I hope this helps.

To use it for a .csv file or in VB, spike the code:

declare @list as varchar(8000)
set @list += @list (select '"'+email+',"' from spam)
print @list

and it produces ready-made code to use elsewhere:

".accountant,"
".bid,"
".buiilldanything.com,"
".club,"
".cn,"
".cricket,"
".date,"
".download,"
".eu,"

One can be very creative.

Thanks

Nico

I don't think anyone has really fully answered the question because they don't describe how the two are used. OK, I think we know that exit kills the script, wherever it is called and you can assign a status to it as well such as exit or exit 0 or exit 7 and so forth. This can be used to determine how the script was forced to stop if called by another script, etc. Enough on exit.

return, when called, will return the value specified to indicate the function's behavior, usually a 1 or a 0. For example:

    #!/bin/bash
    isdirectory() {
      if [ -d "$1" ]
      then
        return 0
      else
        return 1
      fi
    echo "you will not see anything after the return like this text"
    }

Check like this:

    if isdirectory $1; then echo "is directory"; else echo "not a directory"; fi

Or like this:

    isdirectory || echo "not a directory"

In this example, the test can be used to indicate if the directory was found. Notice that anything after the return will not be executed in the function. 0 is true, but false is 1 in the shell, different from other programming languages.

For more information on functions: Returning Values from Bash Functions

Note: The isdirectory function is for instructional purposes only. This should not be how you perform such an option in a real script.*

It's quite unclear how you are computing the size ("the size in debug mode"?").

Use printf():

printf("the size of c is %u\n", (unsigned int) sizeof c);

Normally you'd print a size_t value (which is the type sizeof returns) with %zu, but if you're using a pre-C99 compiler like Visual Studio that won't work.

You need to find the typedef statements in your code that define the custom names like uint8 and so on; those are not standard so nobody here can know how they're defined in your code.

New C code should use <stdint.h> which gives you uint8_t and so on.

The answer of Shyam was right. I already faced with this issue before. It's not a problem, it's a SPRING feature. "Transaction rolled back because it has been marked as rollback-only" is acceptable.

Conclusion

• USE REQUIRES_NEW if you want to commit what did you do before exception (Local commit)
• USE REQUIRED if you want to commit only when all processes are done (Global commit) And you just need to ignore "Transaction rolled back because it has been marked as rollback-only" exception. But you need to try-catch out side the caller processNextRegistrationMessage() to have a meaning log.

Let's me explain more detail:

Question: How many Transaction we have? Answer: Only one

Because you config the PROPAGATION is PROPAGATION_REQUIRED so that the @Transaction persist() is using the same transaction with the caller-processNextRegistrationMessage(). Actually, when we get an exception, the Spring will set rollBackOnly for the TransactionManager so the Spring will rollback just only one Transaction.

Question: But we have a try-catch outside (), why does it happen this exception? Answer Because of unique Transaction

1. When persist() method has an exception

2. Go to the catch outside

   Spring will set the rollBackOnly to true -> it determine we must 
   rollback the caller (processNextRegistrationMessage) also.
   

3. The persist() will rollback itself first.

4. Throw an UnexpectedRollbackException to inform that, we need to rollback the caller also.
5. The try-catch in run() will catch UnexpectedRollbackException and print the stack trace

Question: Why we change PROPAGATION to REQUIRES_NEW, it works?

Answer: Because now the processNextRegistrationMessage() and persist() are in the different transaction so that they only rollback their transaction.

Thanks

Unrelated to the question (Mehrdad's answer should get you going), and I hope this isn't taken as nitpicky: classes don't inherit interfaces, they implement them.

.NET does not support multiple-inheritance, so keeping the terms straight can help in communication. A class can inherit from one superclass and can implement as many interfaces as it wishes.

In response to Eric's comment... I had a discussion with another developer about whether or not interfaces "inherit", "implement", "require", or "bring along" interfaces with a declaration like:

public interface ITwo : IOne

The technical answer is that ITwo does inherit IOne for a few reasons:

• Interfaces never have an implementation, so arguing that ITwo implements IOne is flat wrong
• ITwo inherits IOne methods, if MethodOne() exists on IOne then it is also accesible from ITwo. i.e: ((ITwo)someObject).MethodOne()) is valid, even though ITwo does not explicitly contain a definition for MethodOne()
• ...because the runtime says so! typeof(IOne).IsAssignableFrom(typeof(ITwo)) returns true

We finally agreed that interfaces support true/full inheritance. The missing inheritance features (such as overrides, abstract/virtual accessors, etc) are missing from interfaces, not from interface inheritance. It still doesn't make the concept simple or clear, but it helps understand what's really going on under the hood in Eric's world :-)

Something like this should do:

function cleanLocalStorage() {
    for(key in localStorage) {
        delete localStorage[key];
    }
}

Be careful about using this, though, as the user may have other data stored in localStorage and would probably be pretty ticked if you deleted that. I'd recommend either a) not storing the user's data in localStorage or b) storing the user's account stuff in a single variable, and then clearing that instead of deleting all the keys in localStorage.

Edit: As Lyn pointed out, you'll be good with localStorage.clear(). My previous points still stand, however.

Use router.back() directly to go back/route-back programmatic on vue-router.

Here's a code excerpt we're using in our app to set request headers. You'll note we set the CONTENT_TYPE header only on a POST or PUT, but the general method of adding headers (via a request interceptor) is used for GET as well.

/**
 * HTTP request types
 */
public static final int POST_TYPE   = 1;
public static final int GET_TYPE    = 2;
public static final int PUT_TYPE    = 3;
public static final int DELETE_TYPE = 4;

/**
 * HTTP request header constants
 */
public static final String CONTENT_TYPE         = "Content-Type";
public static final String ACCEPT_ENCODING      = "Accept-Encoding";
public static final String CONTENT_ENCODING     = "Content-Encoding";
public static final String ENCODING_GZIP        = "gzip";
public static final String MIME_FORM_ENCODED    = "application/x-www-form-urlencoded";
public static final String MIME_TEXT_PLAIN      = "text/plain";

private InputStream performRequest(final String contentType, final String url, final String user, final String pass,
    final Map<String, String> headers, final Map<String, String> params, final int requestType) 
            throws IOException {

    DefaultHttpClient client = HTTPClientFactory.newClient();

    client.getParams().setParameter(HttpProtocolParams.USER_AGENT, mUserAgent);

    // add user and pass to client credentials if present
    if ((user != null) && (pass != null)) {
        client.getCredentialsProvider().setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(user, pass));
    }

    // process headers using request interceptor
    final Map<String, String> sendHeaders = new HashMap<String, String>();
    if ((headers != null) && (headers.size() > 0)) {
        sendHeaders.putAll(headers);
    }
    if (requestType == HTTPRequestHelper.POST_TYPE || requestType == HTTPRequestHelper.PUT_TYPE ) {
        sendHeaders.put(HTTPRequestHelper.CONTENT_TYPE, contentType);
    }
    // request gzip encoding for response
    sendHeaders.put(HTTPRequestHelper.ACCEPT_ENCODING, HTTPRequestHelper.ENCODING_GZIP);

    if (sendHeaders.size() > 0) {
        client.addRequestInterceptor(new HttpRequestInterceptor() {

            public void process(final HttpRequest request, final HttpContext context) throws HttpException,
                IOException {
                for (String key : sendHeaders.keySet()) {
                    if (!request.containsHeader(key)) {
                        request.addHeader(key, sendHeaders.get(key));
                    }
                }
            }
        });
    }

    //.... code omitted ....//

}

10 years later ---> Using tidyverse we could achieve this simply and borrowing a leaf from Christopher Bottoms. For a better grasp, see slice().

library(tidyverse)
x <- structure(list(A = c(5,    3.5, 3.25, 4.25,  1.5 ), 
                    B = c(4.25, 4,   4,    4.5,   4.5 ),
                    C = c(4.5,  2.5, 4,    2.25,  3   )
),
.Names    = c("A", "B", "C"),
class     = "data.frame",
row.names = c(NA, -5L)
)

x
#>      A    B    C
#> 1 5.00 4.25 4.50
#> 2 3.50 4.00 2.50
#> 3 3.25 4.00 4.00
#> 4 4.25 4.50 2.25
#> 5 1.50 4.50 3.00

y<-c(A=5, B=4.25, C=4.5)
y
#>    A    B    C 
#> 5.00 4.25 4.50

#The slice() verb allows one to subset data row-wise. 
x <- x %>% slice(1) #(n) for the nth row, or (i:n) for range i to n, (i:n()) for i to last row...

x
#>   A    B   C
#> 1 5 4.25 4.5

#Test that the items in the row match the vector you wanted
x[1,]==y
#>      A    B    C
#> 1 TRUE TRUE TRUE

^{Created on 2020-08-06 by the reprex package (v0.3.0)}

You could do this:

var timer = NSTimer.scheduledTimerWithTimeInterval(0.1, target: self, selector: Selector("someSelector"), userInfo: nil, repeats: false)

func someSelector() {
    // Something after a delay
}

SWIFT 3

let timer = Timer.scheduledTimer(timeInterval: 0.1, target: self, selector: #selector(someSelector), userInfo: nil, repeats: false)

func someSelector() {
    // Something after a delay
}

1. without third party library
2. no need for pre-ordering array
3. you can get any portion of the tree you want

Try this

function getUnflatten(arr,parentid){
  let output = []
  for(const obj of arr){
    if(obj.parentid == parentid)

      let children = getUnflatten(arr,obj.id)

      if(children.length){
        obj.children = children
      }
      output.push(obj)
    }
  }

  return output
 }

Test it on Jsfiddle

Here is a solution for spark in Java. To select data rows containing nulls. When you have Dataset data, you do:

Dataset<Row> containingNulls =  data.where(data.col("COLUMN_NAME").isNull())

To filter out data without nulls you do:

Dataset<Row> withoutNulls = data.where(data.col("COLUMN_NAME").isNotNull())

Often dataframes contain columns of type String where instead of nulls we have empty strings like "". To filter out such data as well we do:

Dataset<Row> withoutNullsAndEmpty = data.where(data.col("COLUMN_NAME").isNotNull().and(data.col("COLUMN_NAME").notEqual("")))

Either link the shell to an object, have the batch job terminate the shell object (exit) and have the VBA code continue once the shell object = Nothing?

Or have a look at this: Capture output value from a shell command in VBA?

if not exist "%USERPROFILE%\.qgis-custom\" (
    mkdir "%USERPROFILE%\.qgis-custom" 2>nul
    if not errorlevel 1 (
        xcopy "%OSGEO4W_ROOT%\qgisconfig" "%USERPROFILE%\.qgis-custom" /s /v /e
    )
)

You have it almost done. The logic is correct, just some little changes.

This code checks for the existence of the folder (see the ending backslash, just to differentiate a folder from a file with the same name).

If it does not exist then it is created and creation status is checked. If a file with the same name exists or you have no rights to create the folder, it will fail.

If everyting is ok, files are copied.

All paths are quoted to avoid problems with spaces.

It can be simplified (just less code, it does not mean it is better). Another option is to always try to create the folder. If there are no errors, then copy the files

mkdir "%USERPROFILE%\.qgis-custom" 2>nul 
if not errorlevel 1 (
    xcopy "%OSGEO4W_ROOT%\qgisconfig" "%USERPROFILE%\.qgis-custom" /s /v /e
)

In both code samples, files are not copied if the folder is not being created during the script execution.

EDITED - As dbenham comments, the same code can be written as a single line

md "%USERPROFILE%\.qgis-custom" 2>nul && xcopy "%OSGEO4W_ROOT%\qgisconfig" "%USERPROFILE%\.qgis-custom" /s /v /e

The code after the && will only be executed if the previous command does not set errorlevel. If mkdir fails, xcopy is not executed.

There is another error with the forwars=d slash.

if we get this : def get_x(r): return path/'train'/r['fname']
is the same as def get_x(r): return path + 'train' + r['fname']

A tuple technically qualifies as a constant, as a tuple will raise an error if you try to change one of its values. If you want to declare a tuple with one value, then place a comma after its only value, like this:

my_tuple = (0 """Or any other value""",)

To check this variable's value, use something similar to this:

if my_tuple[0] == 0:
    #Code goes here

If you attempt to change this value, an error will be raised.

Your script is using too much memory. This can often happen in PHP if you have a loop that has run out of control and you are creating objects or adding to arrays on each pass of the loop.

Check for infinite loops.

If that isn't the problem, try and help out PHP by destroying objects that you are finished with by setting them to null. eg. $OldVar = null;

Check the code where the error actually happens as well. Would you expect that line to be allocating a massive amount of memory? If not, try and figure out what has gone wrong...

I think the problem is not in sub-query but in WHERE clause of outer query. When you use

WHERE account_code between 503100 and 503105

SQL server will try to convert every value in your Account_code field to integer to test it in provided condition. Obviously it will fail to do so if there will be non-integer characters in some rows.

Installing XCode requires:

• Enrolling on the Apple website (not fun)
• Downloading a 4.7G installer

To install g++ *WITHOUT* having to download the MASSIVE 4.7G xCode install, try this package:

https://github.com/kennethreitz/osx-gcc-installer

The DMG files linked on that page are ~270M and much quicker to install. This was perfect for me, getting homebrew up and running with a minimum of hassle.

The github project itself is basically a script that repackages just the critical chunks of xCode for distribution. In order to run that script and build the DMG files, you'd need to already have an XCode install, which would kind of defeat the point, so the pre-built DMG files are hosted on the project page.

After going through the answers given by these contributors above - Zorglub29, Tom, Mark, Aaron McMillin, lucasamaral, JoeyZhao, Kjeld Flarup, Procyclinsur, martin.zaenker, tooty44 and debugging the issue that I was facing I found out a different use case due to which I was facing this issue. Hence adding my observations below for anybody's reference.

In my code I had a cyclic import of classes. For example:

src
 |-- utilities.py (has Utilities class that uses Event class)  
 |-- consume_utilities.py (has Event class that uses Utilities class)
 |-- tests
      |-- test_consume_utilities.py (executes test cases that involves Event class)

I got following error when I tried to execute python -m pytest tests/test_utilities.py for executing UTs written in test_utilities.py.

ImportError while importing test module '/Users/.../src/tests/test_utilities.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
tests/test_utilities.py:1: in <module>
    from utilities import Utilities
...
...
E   ImportError: cannot import name 'Utilities'

The way I resolved the error was by re-factoring my code to move the functionality in cyclic import class so that I could remove the cyclic import of classes.

Note, I have __init__.py file in my 'src' folder as well as 'tests' folder and still was able to get rid of the 'ImportError' just by re-factoring the code.

Following stackoverflow link provides much more details on Circular dependency in Python.

If you don't have repeated values, you could use set difference.

x = set(range(10))
y = x - set([2, 3, 7])
# y = set([0, 1, 4, 5, 6, 8, 9])

and then convert back to list, if needed.

You've got an array of objects, so you'll need to use ng-repeat twice, like:

<ul ng-repeat="item in items">
  <li ng-repeat="(key, val) in item">
    {{key}}: {{val}}
  </li>
</ul>

Example: http://jsfiddle.net/Vwsej/

Edit:

Note that properties order in objects are not guaranteed.

<table>
    <tr>
        <th ng-repeat="(key, val) in items[0]">{{key}}</th>
    </tr>
    <tr ng-repeat="item in items">
        <td ng-repeat="(key, val) in item">{{val}}</td>
    </tr>
</table>

Example: http://jsfiddle.net/Vwsej/2/

From Java SE 6 HotSpot[tm] Virtual Machine Garbage Collection Tuning

the following

Excessive GC Time and OutOfMemoryError

The concurrent collector will throw an OutOfMemoryError if too much time is being spent in garbage collection: if more than 98% of the total time is spent in garbage collection and less than 2% of the heap is recovered, an OutOfMemoryError will be thrown. This feature is designed to prevent applications from running for an extended period of time while making little or no progress because the heap is too small. If necessary, this feature can be disabled by adding the option -XX:-UseGCOverheadLimit to the command line.

The policy is the same as that in the parallel collector, except that time spent performing concurrent collections is not counted toward the 98% time limit. In other words, only collections performed while the application is stopped count toward excessive GC time. Such collections are typically due to a concurrent mode failure or an explicit collection request (e.g., a call to System.gc()).

in conjunction with a passage further down

One of the most commonly encountered uses of explicit garbage collection occurs with RMIs distributed garbage collection (DGC). Applications using RMI refer to objects in other virtual machines. Garbage cannot be collected in these distributed applications without occasionally collection the local heap, so RMI forces full collections periodically. The frequency of these collections can be controlled with properties. For example,

java -Dsun.rmi.dgc.client.gcInterval=3600000

-Dsun.rmi.dgc.server.gcInterval=3600000 specifies explicit collection once per hour instead of the default rate of once per minute. However, this may also cause some objects to take much longer to be reclaimed. These properties can be set as high as Long.MAX_VALUE to make the time between explicit collections effectively infinite, if there is no desire for an upper bound on the timeliness of DGC activity.

Seems to imply that the evaluation period for determining the 98% is one minute long, but it might be configurable on Sun's JVM with the correct define.

Of course, other interpretations are possible.

$foobar = new foobar; put the class foobar in $foobar, not the object. To get the object, you need to add parenthesis: $foobar = new foobar();

Your error is simply that you call a method on a class, so there is no $this since $this only exists in objects.

I've devised the below demo using a mix of tricks which allows simulating if/else scenarios for some properties. Any property which is numerical in its essence is easy target for this method, but properties with text values are.

This code has 3 if/else scenarios, for opacity, background color & width. All 3 are governed by two Boolean variables bool and its opposite notBool.

Those two Booleans are the key to this method, and to achieve a Boolean out of a none-boolean dynamic value, requires some math which luckily CSS allows using min & max functions.

Obviously those functions (min/max) are supported in recent browsers' versions which also supports CSS custom properties (variables).

var elm = document.querySelector('div')

setInterval(()=>{
  elm.style.setProperty('--width', Math.round(Math.random()*80 + 20))
}, 1000)

:root{
   --color1: lightgreen;
   --color2: salmon;
   --width: 70;  /* starting value, randomly changed by javascript every 1 second */
}

div{
 --widthThreshold: 50;
 --is-width-above-limit: Min(1, Max(var(--width) - var(--widthThreshold), 0));
 --is-width-below-limit: calc(1 - var(--is-width-above-limit));
 
 --opacity-wide: .4;     /* if width is ABOVE 50 */
 --radius-narrow: 10px;  /* if width is BELOW 50 */
 --radius-wide: 60px;    /* if width is ABOVE 50 */
 --height-narrow: 80px;  /* if width is ABOVE 50 */
 --height-wide: 160px;   /* if width is ABOVE 50 */
 
 --radiusToggle: Max(var(--radius-narrow), var(--radius-wide) * var(--is-width-above-limit));
 --opacityToggle: calc(calc(1 + var(--opacity-wide)) - var(--is-width-above-limit));
 --colorsToggle: var(--color1) calc(100% * var(--is-width-above-limit)), 
                 var(--color2) calc(100% * var(--is-width-above-limit)), 
                 var(--color2) calc(100% * (1 - var(--is-width-above-limit)));
  
 --height: Max(var(--height-wide) * var(--is-width-above-limit), var(--height-narrow));
 
 height: var(--height);
 text-align: center;
 line-height: var(--height);

 width: calc(var(--width) * 1%);
 opacity: var(--opacityToggle);
 border-radius: var(--radiusToggle);
 background: linear-gradient(var(--colorsToggle));

 transition: .3s;
}

/* prints some variables */
div::before{
  counter-reset: aa var(--width);
  content: counter(aa)"%";
}

div::after{
  counter-reset: bb var(--is-width-above-limit);
  content: " is over 50% ? "counter(bb);
}

<div></div>

Another simply way using clamp:

label{ --width: 150 }
input:checked + div{ --width: 400 }

div{
  --isWide: Clamp(0,   (var(--width) - 150) * 99999  , 1);
  width: calc(var(--width) * 1px);
  height: 150px;
  border-radius: calc(var(--isWide) * 20px); /* if wide - add radius */
  background: lightgreen;
}

<label>
<input type='checkbox' hidden> 
<div>Click to toggle width</div>
</label>

Best so far:

I have come up with a totally unique method, which is even simpler!

This method is so cool because it is so easy to implement and also to understand. it is based on animation step() function.

Since bool can be easily calculated as either 0 or 1, this value can be used in the step! if only a single step is defined, then the if/else problem is solved.

Using the keyword forwards persist the changes.

var elm = document.querySelector('div')

setInterval(()=>{
  elm.style.setProperty('--width', Math.round(Math.random()*80 + 20))
}, 1000)

:root{
   --color1: salmon;
   --color2: lightgreen;
}

@keyframes if-over-threshold--container{
  to{ 
     --height: 160px;
     --radius: 30px;
     --color: var(--color2);
     opacity: .4; /* consider this as additional, never-before, style */
  }
}

@keyframes if-over-threshold--after{
  to{ 
    content: "true"; 
    color: green; 
  }
}

div{
 --width: 70;           /* must be unitless */
 --height: 80px;
 --radius: 10px;
 --color: var(--color1);
 --widthThreshold: 50;
 --is-width-over-threshold: Min(1, Max(var(--width) - var(--widthThreshold), 0));

 
 text-align: center;
 white-space: nowrap;
 transition: .3s;
 
 /* if element is narrower than --widthThreshold */
 width: calc(var(--width) * 1%);
 height: var(--height);
 line-height: var(--height);
 border-radius: var(--radius);
 background: var(--color);

 /* else */
 animation: if-over-threshold--container forwards steps(var(--is-width-over-threshold));
}

/* prints some variables */
div::before{
  counter-reset: aa var(--width);
  content: counter(aa)"% is over 50% width ? ";
}

div::after{
  content: 'false'; 
  font-weight: bold; 
  color: darkred;
  
  /* if element is wider than --widthThreshold */
  animation: if-over-threshold--after forwards steps(var(--is-width-over-threshold)) ;
}

<div></div>

I've found a Chrome bug which I have reported that can affect this method in some situations where specific type of calculations is necessary, but there's a way around it.

https://bugs.chromium.org/p/chromium/issues/detail?id=1138497

You should be able to do the count on the purch variable:

purch.Count();

e.g.

var purch = from purchase in myBlaContext.purchases
select purchase;

purch.Count();

If you're using Ubuntu and have "Upstart" (http://upstart.ubuntu.com/) you can try this:

Create /var/init/yourservice.conf

with the following content

description "Your Java Service"  
author "You"  

start on runlevel [3]  
stop on shutdown  

expect fork  

script     
    cd /web 
    java -jar server.jar >/var/log/yourservice.log 2>&1  
    emit yourservice_running  
end script  

Now you can issue the service yourservice start and service yourservice stop commands. You can tail /var/log/yourservice.log to verify that it's working.

If you just want to run your jar from the console without it hogging the console window, you can just do:

java -jar /web/server.jar > /var/log/yourservice.log 2>&1

There are different ways, depending on where you want to get. XmlDocument is lighter than XDocument, but if you wish to verify minimalistically that a string contains XML, then regular expression is possibly the fastest and lightest choice you can make. For example, I have implemented Smoke Tests with SpecFlow for my API and I wish to test if one of the results in any valid XML - then I would use a regular expression. But if I need to extract values from this XML, then I would parse it with XDocument to do it faster and with less code. Or I would use XmlDocument if I have to work with a big XML (and sometimes I work with XML's that are around 1M lines, even more); then I could even read it line by line. Why? Try opening more than 800MB in private bytes in Visual Studio; even on production you should not have objects bigger than 2GB. You can with a twerk, but you should not. If you would have to parse a document, which contains A LOT of lines, then this documents would probably be CSV.

I have written this comment, because I see a lof of examples with XDocument. XDocument is not good for big documents, or when you only want to verify if there the content is XML valid. If you wish to check if the XML itself makes sense, then you need Schema.

I also downvoted the suggested answer, because I believe it needs the above information inside itself. Imagine I need to verify if 200M of XML, 10 times an hour, is valid XML. XDocument will waste a lof of resources.

prasanna venkatesh also states you could try filling the string to a dataset, it will indicate valid XML as well.

 <!doctype html>
<html lang="en">
  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB" crossorigin="anonymous">

    <title>Hello, world!</title>
  </head>
  <body>
    <h1>Hello, world!</h1>
  <div class="custom-file">
    <input type="file" class="custom-file-input" id="inputGroupFile01">
    <label class="custom-file-label" for="inputGroupFile01">Choose file</label>
  </div>
    <!-- Optional JavaScript -->
    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js" integrity="sha384-smHYKdLADwkXOn1EmN1qk/HfnUcbVRZyYmZ4qpPea6sjB/pTJ0euyQp0Mk8ck+5T" crossorigin="anonymous"></script>
 <script>
$(function() {
  $(document).on('change', ':file', function() {var input = $(this), numFiles = input.get(0).files ? input.get(0).files.length : 1,
        label = input.val().replace(/\\/g, '/').replace(/.*\//, '');input.trigger('fileselect', [numFiles, label]);
  });
  $(document).ready( function() {
      $(':file').on('fileselect', function(event, numFiles, label) {var input = $(this).parents('.custom-file').find('.custom-file-label'),
      log = numFiles > 1 ? numFiles + ' files selected' : label;if( input.length ) {input.text(log);} else {if( log ) alert(log);}});
  });
});
 </script>
  </body>
</html>

For regex, I first look at this web site: RegExLib.com

Well this should change your format to text.

Worksheets("Sheetname").Activate
Worksheets("SheetName").Columns(1).Select 'or Worksheets("SheetName").Range("A:A").Select
Selection.NumberFormat = "@"

Since Nov 17, 2015 you have to authenticate users to make any (even such as "get some pictures who have specific hashtag") requests. See the Instagram Platform Changelog:

Apps created on or after Nov 17, 2015: All API endpoints require a valid access_token. Apps created before Nov 17, 2015: Unaffected by new API behavior until June 1, 2016.

this makes now all answers given here before June 1, 2016 no longer useful.

Using:

@ComponentScan
@EnableAutoConfiguration
public class Application {

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

        //do your ReconTool stuff
    }
}

will work in all circumstances. Whether you want to launch the application from the IDE, or the build tool.

Using maven just use mvn spring-boot:run

while in gradle it would be gradle bootRun

An alternative to adding code under the run method, is to have a Spring Bean that implements CommandLineRunner. That would look like:

@Component
public class ReconTool implements CommandLineRunner {

    @Override
    public void run(String... args) throws Exception {
       //implement your business logic here
    }
}

Check out this guide from Spring's official guide repository.

The full Spring Boot documentation can be found here

You'll need to use an Iterator to loop through the keys to get their values.

Here's a Kotlin implementation, you will realised that the way I got the string is using optString(), which is expecting a String or a nullable value.

val keys = jsonObject.keys()
while (keys.hasNext()) {
    val key = keys.next()
    val value = targetJson.optString(key)        
}

You can try to set_time_limit(n). However, if your PHP setup is running in safe mode, you can only change it from the php.ini file.

Given a unix timestamp (seconds since epoch) of 1494500000, do:

find . -type f -newermt "$(date '+%Y-%m-%d %H:%M:%S' -d @1494500000)"

To grep those files for "foo":

find . -type f -newermt "$(date '+%Y-%m-%d %H:%M:%S' -d @1494500000)" -exec grep -H 'foo' '{}' \;

There is 2 ways to do that:

1. Using command line option to refresh dependenices cashe.
2. You can delete local cache where artefasts are caches by Gradle and trigger build

Using --refresh-dependencies option:

./gradlew build --refresh-dependencies

Short explanation --refresh-dependencies option tells Gradle to ignore all cached entries for resolved modules and artifacts.

Long explanantion

• WIth –refresh-dependencies’ Gradle will always hit the remote server to check for updated artifacts: however, Gradle will avoid downloading a file where the same file already exists in the cache.
  • First Gradle will make a HEAD request and check if the server reports the file as unchanged since last time (if the ‘content-length’ and ‘last-modified’ are unchanged). In this case you’ll get the message: "Cached resource is up-to-date (lastModified: {})."
  • Next Gradle will determine the remote checksum if possible (either from the HEAD request or by downloading a ‘.sha1’ file).. If this checksum matches another file already downloaded (from any repository), then Gradle will simply copy the file in the cache, rather than re-downloading. In this case you’ll get the message: "“Found locally available resource with matching checksum: [{}, {}]”.

Using delete: When you delete caches

rm -rf $HOME/.gradle/caches/

You just clean all the cached jars and sha1 sums and Gradle is in situation where there is no artifacts on your machine and has to download everything. Yes it will work 100% for the first time, but when another SNAPSHOT is released and it is part of your dependency tree you will be faced again in front of the choice to refresh or to purge the caches.

If you're using puma (I'm using this on Rails 6+):

To change default port for all environments:

The "{3000}" part sets the default port if undefined in ENV.

~/config/puma.rb

change:
    port ENV.fetch('PORT') { 3000 }
for:
    port ENV.fetch('PORT') { 10524 }

To define it depending on the environment, using Figaro gem for credentials/environment variable:

~/application.yml
local_db_username: your_user_name
?local_db_password: your_password
PORT: 10524

You can adapt this to you own environment variable manager.

If you have a large number of sequentially named data frames you can create a list of the desired subset of data frames like this:

d1 <- data.frame(y1=c(1,2,3), y2=c(4,5,6))
d2 <- data.frame(y1=c(3,2,1), y2=c(6,5,4))
d3 <- data.frame(y1=c(6,5,4), y2=c(3,2,1))
d4 <- data.frame(y1=c(9,9,9), y2=c(8,8,8))

my.list <- list(d1, d2, d3, d4)
my.list

my.list2 <- lapply(paste('d', seq(2,4,1), sep=''), get)
my.list2

where my.list2 returns a list containing the 2nd, 3rd and 4th data frames.

[[1]]
  y1 y2
1  3  6
2  2  5
3  1  4

[[2]]
  y1 y2
1  6  3
2  5  2
3  4  1

[[3]]
  y1 y2
1  9  8
2  9  8
3  9  8

Note, however, that the data frames in the above list are no longer named. If you want to create a list containing a subset of data frames and want to preserve their names you can try this:

list.function <-  function() { 

     d1 <- data.frame(y1=c(1,2,3), y2=c(4,5,6))
     d2 <- data.frame(y1=c(3,2,1), y2=c(6,5,4))
     d3 <- data.frame(y1=c(6,5,4), y2=c(3,2,1))
     d4 <- data.frame(y1=c(9,9,9), y2=c(8,8,8))

     sapply(paste('d', seq(2,4,1), sep=''), get, environment(), simplify = FALSE) 
} 

my.list3 <- list.function()
my.list3

which returns:

> my.list3
$d2
  y1 y2
1  3  6
2  2  5
3  1  4

$d3
  y1 y2
1  6  3
2  5  2
3  4  1

$d4
  y1 y2
1  9  8
2  9  8
3  9  8

> str(my.list3)
List of 3
 $ d2:'data.frame':     3 obs. of  2 variables:
  ..$ y1: num [1:3] 3 2 1
  ..$ y2: num [1:3] 6 5 4
 $ d3:'data.frame':     3 obs. of  2 variables:
  ..$ y1: num [1:3] 6 5 4
  ..$ y2: num [1:3] 3 2 1
 $ d4:'data.frame':     3 obs. of  2 variables:
  ..$ y1: num [1:3] 9 9 9
  ..$ y2: num [1:3] 8 8 8

> my.list3[[1]]
  y1 y2
1  3  6
2  2  5
3  1  4

> my.list3$d4
  y1 y2
1  9  8
2  9  8
3  9  8

Assuming xmlDoc is an XmlDocument object whats wrong with xmlDoc.OuterXml?

return xmlDoc.OuterXml;

The OuterXml property returns a string version of the xml.

It is not feasible to add options if requests is being called from another package. In that case adding certificates to the cacert bundle is the straight path, e.g. I had to add "StartCom Class 1 Primary Intermediate Server CA", for which I downloaded the root cert into StartComClass1.pem. given my virtualenv is named caldav, I added the certificate with:

cat StartComClass1.pem >> .virtualenvs/caldav/lib/python2.7/site-packages/pip/_vendor/requests/cacert.pem
cat temp/StartComClass1.pem >> .virtualenvs/caldav/lib/python2.7/site-packages/requests/cacert.pem

one of those might be enough, I did not check

if (window.confirm('Really go to another page?'))
{
    alert('message');
    window.location = '/some/url';
}
else
{
    die();
}

int c;
    String raw = "";
    do {
        c = inputstream.read();
        raw+=(char)c;
    } while(inputstream.available()>0);

InputStream.available() shows the available bytes only after one byte is read, hence do .. while

Your css will only work in IE browser. And the css suggessted by hayk.mart will olny work in webkit browsers. And by using different css hacks you can't style your browsers scroll bars with a same result.

So, it is better to use a jQuery/Javascript plugin to achieve a cross browser solution with a same result.

Solution:

By Using jScrollPane a jQuery plugin, you can achieve a cross browser solution

See This Demo

After struggling for a while, what I found is that we can use fct_relevel() and fct_recode() from forcats in conjunction to change the order of the facets as well fix the facet labels. I am not sure if it's supported by design, but it works! Check out the plots below:

library(tidyverse)

before <- mpg %>%
  ggplot(aes(displ, hwy)) + 
  geom_point() +
  facet_wrap(~class)
before

after <- mpg %>%
  ggplot(aes(displ, hwy)) + 
  geom_point() + 
  facet_wrap(
    vars(
      # Change factor level name
      fct_recode(class, "motorbike" = "2seater") %>% 
        # Change factor level order
        fct_relevel("compact")
    )
  )
after

^{Created on 2020-02-16 by the reprex package (v0.3.0)}

Renames all .pdf files based on current system date. For example a file named Gross Profit.pdf is renamed to Gross Profit 2014-07-31.pdf. If you run it tomorrow, it will rename it to Gross Profit 2014-08-01.pdf.

You could replace the ? with the report name Gross Profit, but it will only rename the one report. The ? renames everything in the Conduit folder. The reason there are so many ?, is that some .pdfs have long names. If you just put 12 ?s, then any name longer than 12 characters will be clipped off at the 13th character. Try it with 1 ?, then try it with many ?s. The ? length should be a little longer or as long as the longest report name.

@ECHO OFF
SET NETWORKSOURCE=\\flcorpfile\shared\"SHORE Reports"\2014\Conduit
REN %NETWORKSOURCE%\*.pdf "????????????????????????????????????????????????? %date:~-4,4%-%date:~-10,2%-%date:~7,2%.pdf"

For modern browsers, use td:nth-child(2) for the second td, and td:nth-child(3) for the third. Remember that these retrieve the second and third td for every row.

If you need compatibility with IE older than version 9, use sibling combinators or JavaScript as suggested by Tim. Also see my answer to this related question for an explanation and illustration of his method.

If using virtualenv, look for the build directory under your environments root.

Microsoft recommends using singular for Enums unless the Enum represents bit fields (use the FlagsAttribute as well). See Enumeration Type Naming Conventions (a subset of Microsoft's Naming Guidelines).

To respond to your clarification, I see nothing wrong with either of the following:

public enum OrderStatus { Pending, Fulfilled, Error };

public class SomeClass { 
    public OrderStatus OrderStatus { get; set; }
}

or

public enum OrderStatus { Pending, Fulfilled, Error };

public class SomeClass {
    public OrderStatus Status { get; set; }
}

As is defined in RFC 1341:

In the Extended BNF notation of RFC 822, a Content-Type header field value is defined as follows:

Content-Type := type "/" subtype *[";" parameter]

type := "application" / "audio" / "image" / "message" / "multipart" / "text" / "video" / x-token

x-token := < The two characters "X-" followed, with no intervening white space, by any token >

subtype := token

parameter := attribute "=" value

attribute := token

value := token / quoted-string

token := 1*

tspecials := "(" / ")" / "<" / ">" / "@" ; Must be in / "," / ";" / ":" / "\" / <"> ; quoted-string, / "/" / "[" / "]" / "?" / "." ; to use within / "=" ; parameter values

And a list of known MIME types that can follow it (or, as Joe remarks, the IANA source).

As you can see the list is way too big for you to validate against all of them. What you can do is validate against the general format and the type attribute to make sure that is correct (the set of options is small) and just assume that what follows it is correct (and of course catch any exceptions you might encounter when you put it to actual use).

Also note the comment above:

If another primary type is to be used for any reason, it must be given a name starting with "X-" to indicate its non-standard status and to avoid any potential conflict with a future official name.

You'll notice that a lot of HTTP requests/responses include an X- header of some sort which are self defined, keep this in mind when validating the types.

A supplemental visual view of pd.concat([df0, df1], kwargs). Notice that, kwarg axis=0 or axis=1 's meaning is not as intuitive as df.mean() or df.apply(func)

If using Postman, make sure that:

• You have set a "Content-Type" header to "application/json"
• You are sending the body as "raw"
• You don't need to specify the parameter name anywhere if you are using [FromBody]

I was stupidly trying to send my JSON as form data, duh...

These files will successfully open sshd and run service so you can ssh in locally. (you are using cyberduck aren't you?)

Dockerfile

FROM swiftdocker/swift
MAINTAINER Nobody

RUN apt-get update && apt-get -y install openssh-server supervisor
RUN mkdir /var/run/sshd
RUN echo 'root:password' | chpasswd
RUN sed -i 's/PermitRootLogin without-password/PermitRootLogin yes/' /etc/ssh/sshd_config

# SSH login fix. Otherwise user is kicked off after login
RUN sed 's@session\s*required\s*pam_loginuid.so@session optional pam_loginuid.so@g' -i /etc/pam.d/sshd

ENV NOTVISIBLE "in users profile"
RUN echo "export VISIBLE=now" >> /etc/profile

COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf

EXPOSE 22
CMD ["/usr/bin/supervisord"]

supervisord.conf

[supervisord]
nodaemon=true

[program:sshd]
command=/usr/sbin/sshd -D

to build / run start daemon / jump into shell.

docker build -t swift3-ssh .  
docker run -p 2222:22 -i -t swift3-ssh
docker ps # find container id
docker exec -i -t <containerid> /bin/bash

I was also facing the same problem for twitter-bootstrap.

As eternicode/bootstrap-datepicker is incompatible with jQuery UI.

But twitter-bootstrap is working fine for vitalets/bootstrap-datepicker even with jQuery UI.

Add in pre-build event of your master project taskkill /f /fi "pid gt 0" /im "YourProcess.vshost.exe"

I ran into a similar error when creating a custom view class, that was because somehow one of the outlet got hooked up twice in the XIB file(I think I initially control dragged the control directly to the code, but latter control dragged again from the File's owner). I opened the XIB file and remove one of them, after that everything worked fine. Hopefully this helps.

Trevor Howard has some UIImage categories that handle resize quite nicely. If nothing else you can use the code as examples.

Note: As of iOS 5.1, this answer maybe invalid. See comment below.

The updated or deleted values are stored in DELETED. we can get it by the below method in trigger

Full example,

CREATE TRIGGER PRODUCT_UPDATE ON PRODUCTS
FOR UPDATE 
AS
BEGIN
DECLARE @PRODUCT_NAME_OLD VARCHAR(100)
DECLARE @PRODUCT_NAME_NEW VARCHAR(100)

SELECT @PRODUCT_NAME_OLD = product_name from DELETED
SELECT @PRODUCT_NAME_NEW = product_name from INSERTED

END

In playSound(), instead of

for i in range(myList):

try

for i in myList:

This will iterate over the contents of myList, which I believe is what you want. range(myList) doesn't make any sense.

Update

Now that the question scope has been corrected, I might add something in this regard as well:

There are many comparisons between Apache Solr and ElasticSearch available, so I'll reference those I found most useful myself, i.e. covering the most important aspects:

• Bob Yoplait already linked kimchy's answer to ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage?, which summarizes the reasons why he went ahead and created ElasticSearch, which in his opinion provides a much superior distributed model and ease of use in comparison to Solr.

• Ryan Sonnek's Realtime Search: Solr vs Elasticsearch provides an insightful analysis/comparison and explains why he switched from Solr to ElasticSeach, despite being a happy Solr user already - he summarizes this as follows:

  Solr may be the weapon of choice when building standard search applications, but Elasticsearch takes it to the next level with an architecture for creating modern realtime search applications. Percolation is an exciting and innovative feature that singlehandedly blows Solr right out of the water. Elasticsearch is scalable, speedy and a dream to integrate with. Adios Solr, it was nice knowing you. [emphasis mine]

• The Wikipedia article on ElasticSearch quotes a comparison from the reputed German iX magazine, listing advantages and disadvantages, which pretty much summarize what has been said above already:

  Advantages:

  • ElasticSearch is distributed. No separate project required. Replicas are near real-time too, which is called "Push replication".
  • ElasticSearch fully supports the near real-time search of Apache Lucene.
  • Handling multitenancy is not a special configuration, where with Solr a more advanced setup is necessary.
  • ElasticSearch introduces the concept of the Gateway, which makes full backups easier.

  Disadvantages:

  • Only one main developer [not applicable anymore according to the current elasticsearch GitHub organization, besides having a pretty active committer base in the first place]
  • No autowarming feature [not applicable anymore according to the new Index Warmup API]

Initial Answer

They are completely different technologies addressing completely different use cases, thus cannot be compared at all in any meaningful way:

• Apache Solr - Apache Solr offers Lucene's capabilities in an easy to use, fast search server with additional features like faceting, scalability and much more

• Amazon ElastiCache - Amazon ElastiCache is a web service that makes it easy to deploy, operate, and scale an in-memory cache in the cloud.

  • Please note that Amazon ElastiCache is protocol-compliant with Memcached, a widely adopted memory object caching system, so code, applications, and popular tools that you use today with existing Memcached environments will work seamlessly with the service (see Memcached for details).

[emphasis mine]

Maybe this has been confused with the following two related technologies one way or another:

• ElasticSearch - It is an Open Source (Apache 2), Distributed, RESTful, Search Engine built on top of Apache Lucene.

• Amazon CloudSearch - Amazon CloudSearch is a fully-managed search service in the cloud that allows customers to easily integrate fast and highly scalable search functionality into their applications.

The Solr and ElasticSearch offerings sound strikingly similar at first sight, and both use the same backend search engine, namely Apache Lucene.

While Solr is older, quite versatile and mature and widely used accordingly, ElasticSearch has been developed specifically to address Solr shortcomings with scalability requirements in modern cloud environments, which are hard(er) to address with Solr.

As such it would probably be most useful to compare ElasticSearch with the recently introduced Amazon CloudSearch (see the introductory post Start Searching in One Hour for Less Than $100 / Month), because both claim to cover the same use cases in principle.

If you don't want Vim to mangle formatting in incoming pasted text, you might also want to consider using: :set paste. This will prevent Vim from re-tabbing your code. When done pasting, :set nopaste will return to the normal behavior.

It's also possible to toggle the mode with a single key, by adding something like set pastetoggle=<F2> to your .vimrc. More details on toggling auto-indent are here.

My solution was to not use the id of an anchor element: <a id='star_wars'>Place to jump to</a>. Apparently blazor and other spa frameworks have issues jumping to anchors on the same page. To get around that I had to use document.getElementById('star_wars'). However this didn't work until I put the id in a paragraph element instead: <p id='star_wars'>Some paragraph<p>.

Example using bootstrap:

<button class="btn btn-link" onclick="document.getElementById('star_wars').scrollIntoView({behavior:'smooth'})">Star Wars</button>

... lots of other text

<p id="star_wars">Star Wars is an American epic...</p>

I had same problem with a site on our direct admin hosted site. I added

DirectoryIndex index.php

as a custom httd extension (which adds code to a sites httpd file) and the site then ran the index.php by default.

Installation

OpCache is compiled by default on PHP5.5+. However it is disabled by default. In order to start using OpCache in PHP5.5+ you will first have to enable it. To do this you would have to do the following.

Add the following line to your php.ini:

zend_extension=/full/path/to/opcache.so (nix)
zend_extension=C:\path\to\php_opcache.dll (win)

Note that when the path contains spaces you should wrap it in quotes:

zend_extension="C:\Program Files\PHP5.5\ext\php_opcache.dll"

Also note that you will have to use the zend_extension directive instead of the "normal" extension directive because it affects the actual Zend engine (i.e. the thing that runs PHP).

Usage

Currently there are four functions which you can use:

opcache_get_configuration():

Returns an array containing the currently used configuration OpCache uses. This includes all ini settings as well as version information and blacklisted files.

var_dump(opcache_get_configuration());

opcache_get_status():

This will return an array with information about the current status of the cache. This information will include things like: the state the cache is in (enabled, restarting, full etc), the memory usage, hits, misses and some more useful information. It will also contain the cached scripts.

var_dump(opcache_get_status());

opcache_reset():

Resets the entire cache. Meaning all possible cached scripts will be parsed again on the next visit.

opcache_reset();

opcache_invalidate():

Invalidates a specific cached script. Meaning the script will be parsed again on the next visit.

opcache_invalidate('/path/to/script/to/invalidate.php', true);

Maintenance and reports

There are some GUI's created to help maintain OpCache and generate useful reports. These tools leverage the above functions.

OpCacheGUI

_{Disclaimer I am the author of this project}

Features:

• OpCache status
• OpCache configuration
• OpCache statistics
• OpCache reset
• Cached scripts overview
• Cached scripts invalidation
• Multilingual
• Mobile device support
• Shiny graphs

Screenshots:

URL: https://github.com/PeeHaa/OpCacheGUI

opcache-status

Features:

• OpCache status
• OpCache configuration
• OpCache statistics
• Cached scripts overview
• Single file

Screenshot:

URL: https://github.com/rlerdorf/opcache-status

opcache-gui

Features:

• OpCache status
• OpCache configuration
• OpCache statistics
• OpCache reset
• Cached scripts overview
• Cached scripts invalidation
• Automatic refresh

Screenshot:

URL: https://github.com/amnuts/opcache-gui

My answer is here lacks technomalogical sophistication to the extent it even employs words like "technomalogical" which are one of those words which aren't actually in the dictionary but have infrequent usage such as the word "gullible" which also cannot be found in the dictionary either.

All that aside: here's me simple answer to a simple question in a simple way to answer a question like this one which is very complicated to ask and the simple wishy washy answer to the wishy washy question like this is thus:

The $('#ident') thing says "document.getElementById('ident').

The $('.classname') thing says "document.getElementByClass('classname').

Yes I know there is no getElementByClass but thats kind of what people are saying when they use the $ symbol like that which is a jQuery syntax. Now you know the answer, I bet you are still lost for how to ask the question. Well now you dont have to learn jQuery just to understand jQuery babel a bit right? Give me a +10 please!

All mentioned solutions are legit but if we're talking about elegance then I'll pitch in with the following example:

//function that checks if an object is null
var isNull = function(obj) {
  return obj == null;
}            

if(isNull(results)){
 return 0;
} else {
  return results[1] || 0;
}

Using the isNull function helps the code be more readable.

Above answers are better but yet for knowledge we have another approch as well, Lets 'catagory' column value changed for an object (@design),

@design.changes.has_key?('catagory')

The .changes will return a hash with key as column's name and values as a array with two values [old_value, new_value] for each columns. For example catagory for above is changed from 'ABC' to 'XYZ' of @design,

@design.changes   # => {} 
@design.catagory = 'XYZ'
@design.changes # => { 'catagory' => ['ABC', 'XYZ'] }

For references change in ROR

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

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


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

The output is:

two
five

I use the following alias for add all and commit:

git config --global alias.ac '!git add -A && git commit -a'

Then, by typing:

git ac

I get a vim window to get more editing tools for my commit message.

Careful:

$array = (array) $object;

does a shallow conversion ($object->innerObject = new stdClass() remains an object) and converting back and forth using json works but it's not a good idea if performance is an issue.

If you need all objects to be converted to associative arrays here is a better way to do that (code ripped from I don't remember where):

function toArray($obj)
{
    if (is_object($obj)) $obj = (array)$obj;
    if (is_array($obj)) {
        $new = array();
        foreach ($obj as $key => $val) {
            $new[$key] = toArray($val);
        }
    } else {
        $new = $obj;
    }

    return $new;
}

In C and in C++ single quotes identify a single character, while double quotes create a string literal. 'a' is a single a character literal, while "a" is a string literal containing an 'a' and a null terminator (that is a 2 char array).

In C++ the type of a character literal is char, but note that in C, the type of a character literal is int, that is sizeof 'a' is 4 in an architecture where ints are 32bit (and CHAR_BIT is 8), while sizeof(char) is 1 everywhere.

The setting of parent does not work for me unless I use form.ShowDialog();.

When using form.Show(); or form.Show(this); nothing worked until I used, this.CenterToParent();. I just put that in the Load method of the form. All is good.

Start position to the center of parent was set and does work when using the blocking showdialog.

An update mentioned in the comments below:

You don't need to be on the DDMS perspective anymore, just open the File Explorer from Eclipse Window > Show View > Other... It seems the app doesn't need to be running even, I can browse around in different apps file contents. I'm running ADB version 1.0.29

Or, you can try the old approach:

Open the DDMS perspective on your Eclipse IDE

(Window > Open Perspective > Other > DDMS)

and the most important:

YOUR APPLICATION MUST BE RUNNING SO YOU CAN SEE THE HIERARCHY OF FOLDERS AND FILES.

Then in the File Explorer Tab you will follow the path :

data > data > your-package-name > databases > your-database-file.

Then select the file, click on the disket icon in the right corner of the screen to download the .db file. If you want to upload a database file to the emulator you can click on the phone icon(beside disket icon) and choose the file to upload.

If you want to see the content of the .db file, I advise you to use SQLite Database Browser, which you can download here.

PS: If you want to see the database from a real device, you must root your phone.

Arithmetical (as opposed to algorithmic) solution:

angle = Pi - abs(abs(a1 - a2) - Pi);

If you've already assigned the variables using the npm module dotenv, then they should show up in your global variables. That module is here.

While running the debugger, go to your variables tab (right click to reopen if not visible) and then open "global" and then "process." There should then be an env section...

Though this was raised long ago, still a most wanted validation. I found an interesting blog with few function.

/* Please use these function to check the reuslt only. do not check for otherewise. other than utiljs_isInvalidDate

Ex:-

utiljs_isFutureDate() retuns only true for future dates. false does not mean it is not future date. it may be an invalid date.

practice :

call utiljs_isInvalidDate first and then use the returned date for utiljs_isFutureDate()

var d = {};

if(!utiljs_isInvalidDate('32/02/2012', d))

if(utiljs_isFutureDate(d))

//date is a future date

else

// date is not a future date



 */

function utiljs_isInvalidDate(dateStr, returnDate) {

    /*dateStr | format should be dd/mm/yyyy, Ex:- 31/10/2017

     *returnDate will be in {date:js date object}.

     *Ex:- if you only need to check whether the date is invalid,

     * utiljs_isInvalidDate('03/03/2017')

     *Ex:- if need the date, if the date is valid,

     * var dt = {};

     * if(!utiljs_isInvalidDate('03/03/2017', dt)){

     *  //you can use dt.date

     * }

     */

    if (!dateStr)
        return true;
    if (!dateStr.substring || !dateStr.length || dateStr.length != 10)
        return true;
    var day = parseInt(dateStr.substring(0, 2), 10);
    var month = parseInt(dateStr.substring(3, 5), 10);
    var year = parseInt(dateStr.substring(6), 10);
    var fullString = dateStr.substring(0, 2) + dateStr.substring(3, 5) + dateStr.substring(6);
    if (null == fullString.match(/^\d+$/)) //to check for whether there are only numbers
        return true;
    var dt = new Date(month + "/" + day + "/" + year);
    if (dt == 'Invalid Date' || isNaN(dt)) { //if the date string is not valid, new Date will create this string instead
        return true;
    }
    if (dt.getFullYear() != year || dt.getMonth() + 1 != month || dt.getDate() != day) //to avoid 31/02/2018 like dates
        return true;
    if (returnDate)
        returnDate.date = dt;
    return false;
}

function utiljs_isFutureDate(dateStrOrObject, returnDate) {
    return utiljs_isFuturePast(dateStrOrObject, returnDate, true);
}

function utiljs_isPastDate(dateStrOrObject, returnDate) {
    return utiljs_isFuturePast(dateStrOrObject, returnDate, false);
}

function utiljs_isValidDateObjectOrDateString(dateStrOrObject, returnDate) { //this is an internal function
    var dt = {};
    if (!dateStrOrObject)
        return false;
    if (typeof dateStrOrObject.getMonth === 'function')
        dt.date = new Date(dateStrOrObject); //to avoid modifying original date
    else if (utiljs_isInvalidDate(dateStrOrObject, dt))
        return false;
    if (returnDate)
        returnDate.date = dt.date;
    return true;

}

function utiljs_isFuturePast(dateStrOrObject, returnDate, isFuture) { //this is an internal function, please use isFutureDate or isPastDate function
    if (!dateStrOrObject)
        return false;
    var dt = {};
    if (!utiljs_isValidDateObjectOrDateString(dateStrOrObject, dt))
        return false;
    today = new Date();
    today.setHours(0, 0, 0, 0);
    if (dt.date)
        dt.date.setHours(0, 0, 0, 0);
    if (returnDate)
        returnDate.date = dt.date;
    //creating new date using only current d/m/y. as td.date is created with string. otherwise same day selection will not be validated.
    if (isFuture && dt.date && dt.date.getTime && dt.date.getTime() > today.getTime()) {
        return true;
    }
    if (!isFuture && dt.date && dt.date.getTime && dt.date.getTime() < today.getTime()) {
        return true;
    }
    return false;
}

function utiljs_isLeapYear(dateStrOrObject, returnDate) {
    var dt = {};
    if (!dateStrOrObject)
        return false;
    if (utiljs_isValidDateObjectOrDateString(dateStrOrObject, dt)) {
        if (returnDate)
            returnDate.date = dt.date;
        return dt.date.getFullYear() % 4 == 0;
    }
    return false;
}

function utiljs_firstDateLaterThanSecond(firstDate, secondDate, returnFirstDate, returnSecondDate) {
    if (!firstDate || !secondDate)
        return false;
    var dt1 = {},
    dt2 = {};
    if (!utiljs_isValidDateObjectOrDateString(firstDate, dt1) || !utiljs_isValidDateObjectOrDateString(secondDate, dt2))
        return false;
    if (returnFirstDate)
        returnFirstDate.date = dt1.date;
    if (returnSecondDate)
        returnSecondDate.date = dt2.date;
    dt1.date.setHours(0, 0, 0, 0);
    dt2.date.setHours(0, 0, 0, 0);
    if (dt1.date.getTime && dt2.date.getTime && dt1.date.getTime() > dt2.date.getTime())
        return true;
    return false;
}

function utiljs_isEqual(firstDate, secondDate, returnFirstDate, returnSecondDate) {
    if (!firstDate || !secondDate)
        return false;
    var dt1 = {},
    dt2 = {};
    if (!utiljs_isValidDateObjectOrDateString(firstDate, dt1) || !utiljs_isValidDateObjectOrDateString(secondDate, dt2))
        return false;
    if (returnFirstDate)
        returnFirstDate.date = dt1.date;
    if (returnSecondDate)
        returnSecondDate.date = dt2.date;
    dt1.date.setHours(0, 0, 0, 0);
    dt2.date.setHours(0, 0, 0, 0);
    if (dt1.date.getTime && dt2.date.getTime && dt1.date.getTime() == dt2.date.getTime())
        return true;
    return false;
}

function utiljs_firstDateEarlierThanSecond(firstDate, secondDate, returnFirstDate, returnSecondDate) {
    if (!firstDate || !secondDate)
        return false;
    var dt1 = {},
    dt2 = {};
    if (!utiljs_isValidDateObjectOrDateString(firstDate, dt1) || !utiljs_isValidDateObjectOrDateString(secondDate, dt2))
        return false;
    if (returnFirstDate)
        returnFirstDate.date = dt1.date;
    if (returnSecondDate)
        returnSecondDate.date = dt2.date;
    dt1.date.setHours(0, 0, 0, 0);
    dt2.date.setHours(0, 0, 0, 0);
    if (dt1.date.getTime && dt2.date.getTime && dt1.date.getTime() < dt2.date.getTime())
        return true;
    return false;
}

copy the whole code into a file and include.

hope this helps.

PASSING TABLE AS PARAMETER IN STORED PROCEDURE

Step 1:

CREATE TABLE [DBO].T_EMPLOYEES_DETAILS ( Id int, Name nvarchar(50), Gender nvarchar(10), Salary int )

Step 2:

CREATE TYPE EmpInsertType AS TABLE ( Id int, Name nvarchar(50), Gender nvarchar(10), Salary int )

Step 3:

/* Must add READONLY keyword at end of the variable */

CREATE PROC PRC_EmpInsertType @EmployeeInsertType EmpInsertType READONLY AS BEGIN INSERT INTO [DBO].T_EMPLOYEES_DETAILS SELECT * FROM @EmployeeInsertType END

Step 4:

DECLARE @EmployeeInsertType EmpInsertType

INSERT INTO @EmployeeInsertType VALUES(1,'John','Male',50000) INSERT INTO @EmployeeInsertType VALUES(2,'Praveen','Male',60000) INSERT INTO @EmployeeInsertType VALUES(3,'Chitra','Female',45000) INSERT INTO @EmployeeInsertType VALUES(4,'Mathy','Female',6600) INSERT INTO @EmployeeInsertType VALUES(5,'Sam','Male',50000)

EXEC PRC_EmpInsertType @EmployeeInsertType

=======================================

SELECT * FROM T_EMPLOYEES_DETAILS

OUTPUT

1 John Male 50000

2 Praveen Male 60000

3 Chitra Female 45000

4 Mathy Female 6600

5 Sam Male 50000

You can get some inspiration by reading an entrypoint.sh script written by the contributors from MySQL that checks whether the specified variables were set.

As the script shows, you can pipe them with -a, e.g.:

if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" -a -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; then
    ...
fi