C++ programs are translated to assembly programs during the generation of machine code from the source code. It would be virtually wrong to say assembly is slower than C++. Moreover, the binary code generated differs from compiler to compiler. So a smart C++ compiler may produce binary code more optimal and efficient than a dumb assembler's code.

However I believe your profiling methodology has certain flaws. The following are general guidelines for profiling:

1. Make sure your system is in its normal/idle state. Stop all running processes (applications) that you started or that use CPU intensively (or poll over the network).
2. Your datasize must be greater in size.
3. Your test must run for something more than 5-10 seconds.
4. Do not rely on just one sample. Perform your test N times. Collect results and calculate the mean or median of the result.

To do this task download.js library can be used. Here is an example from library docs:

download("data:image/gif;base64,R0lGODlhRgAVAIcAAOfn5+/v7/f39////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////yH5BAAAAP8ALAAAAABGABUAAAj/AAEIHAgggMGDCAkSRMgwgEKBDRM+LBjRoEKDAjJq1GhxIMaNGzt6DAAypMORJTmeLKhxgMuXKiGSzPgSZsaVMwXUdBmTYsudKjHuBCoAIc2hMBnqRMqz6MGjTJ0KZcrz5EyqA276xJrVKlSkWqdGLQpxKVWyW8+iJcl1LVu1XttafTs2Lla3ZqNavAo37dm9X4eGFQtWKt+6T+8aDkxUqWKjeQUvfvw0MtHJcCtTJiwZsmLMiD9uplvY82jLNW9qzsy58WrWpDu/Lp0YNmPXrVMvRm3T6GneSX3bBt5VeOjDemfLFv1XOW7kncvKdZi7t/S7e2M3LkscLcvH3LF7HwSuVeZtjuPPe2d+GefPrD1RpnS6MGdJkebn4/+oMSAAOw==", "dlDataUrlBin.gif", "image/gif");

Interesting if maddening puzzle...but here's the best I could get:

The data seems to repeat every 8 bytes or so.

import struct
import base64

target = \
r'''Q5YACgAAAABDlgAbAAAAAEOWAC0AAAAAQ5YAPwAAAABDlgdNAAAAAEOWB18AAAAAQ5YH 
[snip.]
ZAAAAABExxniAAAAAETH/rQAAAAARMf/MwAAAABEx/+yAAAAAETIADEAAAAA''' 

data = base64.b64decode(target)

cleaned_data = []
struct_format = ">ff"
for i in range(len(data) // 8):
   cleaned_data.append(struct.unpack_from(struct_format, data, 8*i))

That gives output like the following (a sampling of lines from the first 100 or so):

(300.00030517578125, 0.0)
(300.05975341796875, 241.93943786621094)
(301.05612182617187, 0.0)
(301.05667114257812, 8.7439727783203125)
(326.9617919921875, 0.0)
(326.96826171875, 0.0)
(328.34432983398438, 280.55218505859375)

That first number does seem to monotonically increase through the entire set. If you plot it:

import matplotlib.pyplot as plt
f, ax = plt.subplots()
ax.plot(*zip(*cleaned_data))

format = 'hhhh' (possibly with various paddings/directions (e.g. '<hhhh', '<xhhhh') also might be worth a look (again, random lines):

(-27069, 2560, 0, 0)
(-27069, 8968, 0, 0)
(-27069, 13576, 3139, -18487)
(-27069, 18184, 31043, -5184)
(-27069, -25721, -25533, -8601)
(-27069, -7289, 0, 0)
(-25533, 31066, 0, 0)
(-25533, -29350, 0, 0)
(-25533, 25179, 0, 0)
(-24509, -1888, 0, 0)
(-24509, -4447, 0, 0)
(-23741, -14725, 32067, 27475)
(-23741, -3973, 0, 0)
(-23485, 4908, -29629, -20922)

I would try to map a drive to the remote system (using 'net use' or WshNetwork.MapNetworkDrive, both methods support credentials) and then use copy-item.

The situation never really applies to plural.

An enum shows an attribute of something or another. I'll give an example:

enum Humour
{
  Irony,
  Sarcasm,
  Slapstick,
  Nothing
}

You can have one type, but try think of it in the multiple, rather than plural:

Humour.Irony | Humour.Sarcasm

Rather than

Humours { Irony, Sarcasm }

You have a sense of humour, you don't have a sense of humours.

Tested alone, <select class=input-xxlarge> sets the content width of the element to 530px. (The total width of the element is slightly smaller than that of <input class=input-xxlarge> due to different padding. If this a a problem, set the paddings in your own style sheet as desired.)

So if it does not work, the effect is prevented by some setting in your own style sheet or maybe in the use other settings for the element.

This approach works well very till 2.3 And by adding hardwareaccelerated=true it even works from 3.0 to ICS One problem i am facing currently is upon second launch of media player application is getting crashed because i have not stopped playback and released Media player. As VideoSurfaceView object, which we get in onShowCustomView function from 3.0 OS, are specific to browser and not a VideoView object as in, till 2.3 OS How can i access it and stopPlayback and release resources?

You need

    str.CopyTo(data);
    data.Position = 0; // reset to beginning
    byte[] buf = new byte[data.Length];
    data.Read(buf, 0, buf.Length);  

And since your Test() method is imitating the client it ought to Close() or Dispose() the str Stream. And the memoryStream too, just out of principal.

Please verify your .project and .classpath files. Verify the java version and other reuqired details. If those and missing or mis matched

Using the following 1 line command for changing many files name in linux using phrase specificity:

find -type f -name '*.jpg' | rename 's/holiday/honeymoon/'

For all files with the extension ".jpg", if they contain the string "holiday", replace it with "honeymoon". For instance, this command would rename the file "ourholiday001.jpg" to "ourhoneymoon001.jpg".

This example also illustrates how to use the find command to send a list of files (-type f) with the extension .jpg (-name '*.jpg') to rename via a pipe (|). rename then reads its file list from standard input.

My proffered way is Declare event in ViewModel and use blend InvokeMethodAction as below.

Sample ViewModel

public class MainWindowViewModel : BindableBase, ICloseable
{
    public DelegateCommand SomeCommand { get; private set; }
    #region ICloseable Implementation
    public event EventHandler CloseRequested;        

    public void RaiseCloseNotification()
    {
        var handler = CloseRequested;
        if (handler != null)
        {
            handler.Invoke(this, EventArgs.Empty);
        }
    }
    #endregion

    public MainWindowViewModel()
    {
        SomeCommand = new DelegateCommand(() =>
        {
            //when you decide to close window
            RaiseCloseNotification();
        });
    }
}

I Closeable interface is as below but don't require to perform this action. ICloseable will help in creating generic view service, so if you construct view and ViewModel by dependency injection then what you can do is

internal interface ICloseable
{
    event EventHandler CloseRequested;
}

Use of ICloseable

var viewModel = new MainWindowViewModel();
        // As service is generic and don't know whether it can request close event
        var window = new Window() { Content = new MainView() };
        var closeable = viewModel as ICloseable;
        if (closeable != null)
        {
            closeable.CloseRequested += (s, e) => window.Close();
        }

And Below is Xaml, You can use this xaml even if you don't implement interface, it will only need your view model to raise CloseRquested.

<Window 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:WPFRx"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" 
xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions" 
xmlns:ViewModels="clr-namespace:WPFRx.ViewModels" x:Name="window" x:Class="WPFRx.MainWindow"
    mc:Ignorable="d"
    Title="MainWindow" Height="350" Width="525" 
d:DataContext="{d:DesignInstance {x:Type ViewModels:MainWindowViewModel}}">

<i:Interaction.Triggers>
    <i:EventTrigger SourceObject="{Binding Mode=OneWay}" EventName="CloseRequested" >
        <ei:CallMethodAction TargetObject="{Binding ElementName=window}" MethodName="Close"/>
    </i:EventTrigger>
</i:Interaction.Triggers>

<Grid>
    <Button Content="Some Content" Command="{Binding SomeCommand}" Width="100" Height="25"/>
</Grid>

Solution With Less XAML and More C#

If you define the ListView in XAML:

<ListView x:Name="listView"/>

Then you can add columns and populate it in C#:

public Window()
{
    // Initialize
    this.InitializeComponent();

    // Add columns
    var gridView = new GridView();
    this.listView.View = gridView;
    gridView.Columns.Add(new GridViewColumn { 
        Header = "Id", DisplayMemberBinding = new Binding("Id") });
    gridView.Columns.Add(new GridViewColumn { 
        Header = "Name", DisplayMemberBinding = new Binding("Name") });

    // Populate list
    this.listView.Items.Add(new MyItem { Id = 1, Name = "David" });
}

See definition of MyItem below.

Solution With More XAML and less C#

However, it's easier to define the columns in XAML (inside the ListView definition):

<ListView x:Name="listView">
    <ListView.View>
        <GridView>
            <GridViewColumn Header="Id" DisplayMemberBinding="{Binding Id}"/>
            <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}"/>
        </GridView>
    </ListView.View>
</ListView>

And then just populate the list in C#:

public Window()
{
    // Initialize
    this.InitializeComponent();

    // Populate list
    this.listView.Items.Add(new MyItem { Id = 1, Name = "David" });
}

See definition of MyItem below.

MyItem Definition

MyItem is defined like this:

public class MyItem
{
    public int Id { get; set; }

    public string Name { get; set; }
}

Using width/height on inline elements is not always a good idea. You can use display: inline-block instead

simple way can be -

just href="javascript:location.reload(true);

your answer is

location.reload(true);

Thanks

You can check the validity of a Date object d via

d instanceof Date && isFinite(d)

To avoid cross-frame issues, one could replace the instanceof check with

Object.prototype.toString.call(d) === '[object Date]'

A call to getTime() as in Borgar's answer is unnecessary as isNaN() and isFinite() both implicitly convert to number.

Since we are doing this one to death - you don't have to specify a year:

select * from demo
where  somedate between to_date('01/01 00:00:00', 'DD/MM HH24:MI:SS')
                and     to_date('31/12 23:59:59', 'DD/MM HH24:MI:SS');

However the accepted answer by FerranB makes more sense if you want to specify all date values that fall within the current year.

Some time ago I wrote simple Webcam Capture API which can be used for that. The project is available on Github.

Example code:

Webcam webcam = Webcam.getDefault();
webcam.open();
try {
  ImageIO.write(webcam.getImage(), "PNG", new File("test.png"));
} catch (IOException e) {
  e.printStackTrace();
} finally {
  webcam.close();
}

You can use explode for separating the namespace and end to get the class name:

$ex = explode("\\", get_class($object));
$className = end($ex);

try with screen -d -r or screen -D -RR

Another approach would be using ng-keypress ,

<input type="text" ng-model="data" ng-keypress="($event.charCode==13)? myfunc() : return"> 

Submit an input on pressing Enter with AngularJS - jsfiddle

Note that you can also expand part of argument list:

myfun(1, *("foo", "bar"))

Use time.sleep():

import time
time.sleep(50 / 1000)

See the Python documentation: https://docs.python.org/library/time.html#time.sleep

The question has already been answered but I thought I would also let you know that rather than using the native PHP $_POST I reccomend you use the CodeIgniter input class so your controller code would be

function post_action()
{   
    if($this->input->post('textbox') == "")
    {
        $message = "You can't send empty text";
    }
    else
    {
        $message = $this->input->post('textbox');
    }
    echo $message;
}

Depending on the type of your variable, one of abs(int), labs(long), llabs(long long), imaxabs(intmax_t), fabsf(float), fabs(double), or fabsl(long double).

Those functions are all part of the C standard library, and so are present both in Objective-C and plain C (and are generally available in C++ programs too.)

(Alas, there is no habs(short) function. Or scabs(signed char) for that matter...)

Apple's and GNU's Objective-C headers also include an ABS() macro which is type-agnostic. I don't recommend using ABS() however as it is not guaranteed to be side-effect-safe. For instance, ABS(a++) will have an undefined result.

If you're using C++ or Objective-C++, you can bring in the <cmath> header and use std::abs(), which is templated for all the standard integer and floating-point types.

Sometimes this can refer to another scope and refer to something else, for example suppose you want to call a constructor method inside a DOM event, in this case this will refer to the DOM element not the created object.

HTML

<button id="button">Alert Name</button>

JS

var Person = function(name) {
  this.name = name;
  var that = this;
  this.sayHi = function() {
    alert(that.name);
  };
};

var ahmad = new Person('Ahmad');
var element = document.getElementById('button');
element.addEventListener('click', ahmad.sayHi); // => Ahmad

Demo

The solution above will assing this to that then we can and access the name property inside the sayHi method from that, so this can be called without issues inside the DOM call.

Another solution is to assign an empty that object and add properties and methods to it and then return it. But with this solution you lost the prototype of the constructor.

var Person = function(name) {
  var that = {};
  that.name = name;
  that.sayHi = function() {
    alert(that.name);
  };
  return that;
};

If SelectionUnit="Cell" try this:

    string cellValue = GetSelectedCellValue();

Where:

    public string GetSelectedCellValue()
    {
        DataGridCellInfo cellInfo = MyDataGrid.SelectedCells[0];
        if (cellInfo == null) return null;

        DataGridBoundColumn column = cellInfo.Column as DataGridBoundColumn;
        if (column == null) return null;

        FrameworkElement element = new FrameworkElement() { DataContext = cellInfo.Item };
        BindingOperations.SetBinding(element, TagProperty, column.Binding);

        return element.Tag.ToString();
    }

Seems like it shouldn't be that complicated, I know...

Edit: This doesn't seem to work on DataGridTemplateColumn type columns. You could also try this if your rows are made up of a custom class and you've assigned a sort member path:

    public string GetSelectedCellValue()
    {
        DataGridCellInfo cells = MyDataGrid.SelectedCells[0];

        YourRowClass item = cells.Item as YourRowClass;
        string columnName = cells.Column.SortMemberPath;

        if (item == null || columnName == null) return null;

        object result = item.GetType().GetProperty(columnName).GetValue(item, null);

        if (result == null) return null;

        return result.ToString();
    }

jQuery.fn.sort = function() {  
    return this.pushStack( [].sort.apply( this, arguments ), []);  
};  

 function sortLastName(a,b){  
     if (a.l_name == b.l_name){
       return 0;
     }
     return a.l_name> b.l_name ? 1 : -1;  
 };  
  function sortLastNameDesc(a,b){  
     return sortLastName(a,b) * -1;  
 };
var people= [
{
"f_name": "john",
"l_name": "doe",
"sequence": "0",
"title" : "president",
"url" : "google.com",
"color" : "333333",
},
{
"f_name": "michael",
"l_name": "goodyear",
"sequence": "0",
"title" : "general manager",
"url" : "google.com",
"color" : "333333",
}]

sorted=$(people).sort(sortLastNameDesc);  

If you can use inline styles, then you can do it purely with CSS.

I am using this for doing CSS on the next element when the previous one is visible:

div[style='display: block;'] + table {
  filter: blur(3px);
}

You are experiencing two separate problems here:

hduser@ubuntu:/usr/local/hadoop$ hadoop fs -put /usr/local/input-data/ /input put: /usr/local/input-data (Permission denied)

Here, the user hduser does not have access to the local directory /usr/local/input-data. That is, your local permissions are too restrictive. You should change it.

hduser@ubuntu:/usr/local/hadoop$ sudo bin/hadoop fs -put /usr/local/input-data/ /inwe put: org.apache.hadoop.security.AccessControlException: Permission denied: user=root, access=WRITE, inode="":hduser:supergroup:rwxr-xr-x

Here, the user root (since you are using sudo) does not have access to the HDFS directory /input. As you can see: hduser:supergroup:rwxr-xr-x says only hduser has write access. Hadoop doesn't really respect root as a special user.

To fix this, I suggest you change the permissions on the local data:

sudo chmod -R og+rx /usr/local/input-data/

Then, try the put command again as hduser.

You need to pass an array of element to jsx. The problem is that forEach does not return anything (i.e it returns undefined). So it's better to use map because map returns an array:

class QuestionSet extends Component {
render(){ 
    <div className="container">
       <h1>{this.props.question.text}</h1>
       {this.props.question.answers.map((answer, i) => {     
           console.log("Entered");                 
           // Return the element. Also pass key     
           return (<Answer key={answer} answer={answer} />) 
        })}
}

export default QuestionSet;

For me it worked:

 df['id'].convert_dtypes()

see the documentation here:

https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.convert_dtypes.html

It currently only works for the built in system frameworks. If you use #import like apple still do importing the UIKit framework in the app delegate it is replaced (if modules is on and its recognised as a system framework) and the compiler will remap it to be a module import and not an import of the header files anyway. So leaving the #import will be just the same as its converted to a module import where possible anyway

The other methods work fine, but you can also use the good old django.shortcut.redirect.

The code below was taken from this answer.

In Django 2.x:

from django.shortcuts import redirect
from django.urls import path, include

urlpatterns = [
    # this example uses named URL 'hola-home' from app named hola
    # for more redirect's usage options: https://docs.djangoproject.com/en/2.1/topics/http/shortcuts/
    path('', lambda request: redirect('hola/', permanent=True)),
    path('hola/', include('hola.urls')),
]

As Neel Bhaat has explained in this blog, there are many different tools that can be used for this purpose. Some are AWS provided, where most are third party tools. All these tools require you to save your AWS account key and secret in the tool itself. Be very cautious when using third party tools, as the credentials you save in might cost you, your entire worth and drop you dead.

Therefore, I always recommend using the AWS CLI for this purpose. You can simply install this from this link. Next, run the following command and save your key, secret values in AWS CLI.

aws configure

And use the following command to sync your AWS S3 Bucket to your local machine. (The local machine should have AWS CLI installed)

aws s3 sync <source> <destination>

Examples:

1) For AWS S3 to Local Storage

aws s3 sync <S3Uri> <LocalPath>

2) From Local Storage to AWS S3

aws s3 sync <LocalPath> <S3Uri>

3) From AWS s3 bucket to another bucket

aws s3 sync <S3Uri> <S3Uri> 

You may have to perform a diff and put document.getElementById('name') code inside a condition, in case your component is something like this:

// using the new hooks API
function Comp(props) {
  const { isLoading, data } = props;
  useEffect(() => {
    if (data) {
      var name = document.getElementById('name').value;
    }
  }, [data]) // this diff is necessary

  if (isLoading) return <div>isLoading</div>
  return (
    <div id='name'>Comp</div>
  );
}

If diff is not performed then, you will get null.

Put http.request.method == "POST" in the display filter of wireshark to only show POST requests. Click on the packet, then expand the Hypertext Transfer Protocol field. The POST data will be right there on top.

The css and js files are located within the package: bootstrap/docs/assets/

UPDATE:

since v3 there is a dist folder in the package that contains all css, js and fonts.

Another option (if you just want to fetch single files) might be: pulldown. Configuration is extremely simple and you can easily add your own files/urls to the list.

Swift 4 & 3

Creating Data object from String object has been changed in Swift 3. Correct version now is:

let data = "any string".data(using: .utf8)

This works for me in Kotlin:

when(list.get(0)).thenThrow(new ArrayIndexOutOfBoundsException());

Note : Throw any defined exception other than Exception()

I use this mnemonic:

• Single quotes are for strings (one thing)
• Double quotes are for tables names and column names (two things)

This is not 100% correct according to the specs, but this mnemonic helps me (human being).

This works:

var form = $(this).closest('form');

form = form.serializeArray();

form = form.concat([
    {name: "customer_id", value: window.username},
    {name: "post_action", value: "Update Information"}
]);

$.post('/change-user-details', form, function(d) {
    if (d.error) {
        alert("There was a problem updating your user details")
    } 
});

A TextBlock does not actually inherit from Control so it does not have properties that you would generally associate with a Control. Your best bet for adding a border in a style is to replace the TextBlock with a Label

See this link for more on the differences between a TextBlock and other Controls

This is what matplotlib.pyplot.scatter is for.

As a quick example:

import matplotlib.pyplot as plt
import numpy as np

# Generate data...
t = np.linspace(0, 2 * np.pi, 20)
x = np.sin(t)
y = np.cos(t)

plt.scatter(t,x,c=y)
plt.show()

Please check if you got the x64 edition of eclipse. Someone answered this just a few hours ago.

Just to clarify, do you have JAVA_HOME set as a system variable or set in Eclipse classpath variables? I'm pretty sure (but not totally sure!) that the system variable is used by the command line compiler (and Ant), but that Eclipse modifies this accroding to the JDK used

HTML

<div id='hideme'><strong>Warning:</strong>These are new products<a href='#' class='close_notification' title='Click to Close'><img src="images/close_icon.gif" width="6" height="6" alt="Close" onClick="hide('hideme')" /></a

Javascript:

function hide(obj) {

    var el = document.getElementById(obj);

        el.style.display = 'none';

}

In newer version of windows the Certuil has [CertificateStoreName] where we can give the store name. In earlier version windows this was not possible.

Installing *.pfx certificate: certutil -f -p "" -enterprise -importpfx root ""

Installing *.cer certificate: certutil -addstore -enterprise -f -v root ""

For more details below command can be executed in windows cmd. C:>certutil -importpfx -? Usage: CertUtil [Options] -importPFX [CertificateStoreName] PFXFile [Modifiers]

From http://codecorner.galanter.net/2012/06/04/solution-for-operation-is-not-valid-due-to-the-current-state-of-the-object-error/

Issue happens because Microsoft Security Update MS11-100 limits number of keys in Forms collection during HTTP POST request. To alleviate this problem you need to increase that number.

This can be done in your application Web.Config in the <appSettings> section (create the section directly under <configuration> if it doesn’t exist). Add 2 lines similar to the lines below to the section:

<add key="aspnet:MaxHttpCollectionKeys" value="2000" />
<add key="aspnet:MaxJsonDeserializerMembers" value="2000" />

The above example set the limit to 2000 keys. This will lift the limitation and the error should go away.

I've posted a script for generating all platform icons for PhoneGap apps from a single SVG icon file. If you have existing bitmaps, I also include some notes that may help you to generate the SVG vectors from an existing bitmap. This won't work for all bitmaps but may for yours.

• https://github.com/tohagan/phonegap-graphics

I know I'm late to the party but I find the zerofill is helpful for boolean representations of TINYINT(1). Null doesn't always mean False, sometimes you don't want it to. By zerofilling a tinyint, you're effectively converting those values to INT and removing any confusion ur application may have upon interaction. Your application can then treat those values in a manner similar to the primitive datatype True = Not(0)

You could inspect the available apache2 modules:

$ ls /usr/lib/apache2/modules/

Or try to enable the php module, if you have the appropriate access:

$ a2enmod
Which module would you like to enable?
Your choices are: actions alias asis ...
... php5 proxy_ajp proxy_balancer proxy_connect ..

An enhanced for loop is just limiting the number of parameters inside the parenthesis.

for (int i = 0; i < myArray.length; i++) {
    System.out.println(myArray[i]);
}

Can be written as:

for (int myValue : myArray) {
    System.out.println(myValue);
}

Use arrays:

{
    "number": ["1", "2", "3"],
    "alphabet": ["a", "b", "c"]
}

You can the access the different values from their position in the array. Counting starts at left of array at 0. myJsonObject["number"][0] == 1 or myJsonObject["alphabet"][2] == 'c'

You can use .attr() as a part of however you plan to toggle it:

$("button").attr("aria-expanded","true");

On a tuple/mapping object for multiple argument format

The following is excerpt from the documentation:

Given format % values, % conversion specifications in format are replaced with zero or more elements of values. The effect is similar to the using sprintf() in the C language.

If format requires a single argument, values may be a single non-tuple object. Otherwise, values must be a tuple with exactly the number of items specified by the format string, or a single mapping object (for example, a dictionary).

References

• docs.python.org/library/stdtypes - string formatting

On str.format instead of %

A newer alternative to % operator is to use str.format. Here's an excerpt from the documentation:

str.format(*args, **kwargs)

Perform a string formatting operation. The string on which this method is called can contain literal text or replacement fields delimited by braces {}. Each replacement field contains either the numeric index of a positional argument, or the name of a keyword argument. Returns a copy of the string where each replacement field is replaced with the string value of the corresponding argument.

This method is the new standard in Python 3.0, and should be preferred to % formatting.

References

• docs.python.org/library/stdtypes - str.format - syntax

Examples

Here are some usage examples:

>>> '%s for %s' % ("tit", "tat")
tit for tat

>>> '{} and {}'.format("chicken", "waffles")
chicken and waffles

>>> '%(last)s, %(first)s %(last)s' % {'first': "James", 'last': "Bond"}
Bond, James Bond

>>> '{last}, {first} {last}'.format(first="James", last="Bond")
Bond, James Bond

See also

• docs.python.org/library/string - format examples

Here is a version that works well (I think). Holiday table contains Holiday_date columns that contains holidays your company observe.

DECLARE @RAWDAYS INT

   SELECT @RAWDAYS =  DATEDIFF(day, @StartDate, @EndDate )--+1
                    -( 2 * DATEDIFF( week, @StartDate, @EndDate ) )
                    + CASE WHEN DATENAME(dw, @StartDate) = 'Saturday' THEN 1 ELSE 0 END
                    - CASE WHEN DATENAME(dw, @EndDate) = 'Saturday' THEN 1 ELSE 0 END 

   SELECT  @RAWDAYS - COUNT(*) 
     FROM HOLIDAY NumberOfBusinessDays
    WHERE [Holiday_Date] BETWEEN @StartDate+1 AND @EndDate 

I tried many ways to find the file type I wanted, and here are my results when done.

public static void main( String args[]){
final String dir2 = System.getProperty("user.name"); \\get user name 
String path = "C:\\Users\\" + dir2; 
digFile(new File(path)); \\ path is file start to dig
    
   for (int i = 0; i < StringFile.size(); i++) {
         
   System.out.println(StringFile.get(i));
        
    }
 }

private void digFile(File dir) {

    FilenameFilter filter = new FilenameFilter() {
        public boolean accept(File dir, String name) {
            return name.endsWith(".mp4");
        }
    };      
    String[] children = dir.list(filter);

   
    if (children == null) {
        return;
    } else {
        for (int i = 0; i < children.length; i++) {
            StringFile.add(dir+"\\"+children[i]);

        }
    }

    File[] directories;
    directories = dir.listFiles(new FileFilter() {
        @Override
        public boolean accept(File file) {
            return file.isDirectory();
        }
    
        public boolean accept(File dir, String name) {
            return !name.endsWith(".mp4");
        }
    });
        
   if(directories!=null)
   {
       for (File directory : directories) {
           digFile(directory);
       }
   }
    
}

Settings->Preferences->Auto-Completion and there check Enable auto-completion on each input. Press Ctrl + Space to get a autocomplete hint. For auto-complete in code type the first letter then press Ctrl + Enter. all the inputs you have given will be listed.

If a credit card is already added to a PayPal account then it won't let you use that card to process directly with Payments Advanced. The system expects buyers to login to PayPal and just choose that credit card as their funding source if they want to pay with it.

As for testing on the sandbox, I've always used old, expired credit cards I have laying around and they seem to work fine for me.

You could always try the ones starting on page 87 of the PayFlow documentation, too. They should work.

I actually check all bash scripts in current dir for syntax errors WITHOUT running them using find tool:

Example:

find . -name '*.sh' -exec bash -n {} \;

If you want to use it for a single file, just edit the wildcard with the name of the file.

I would like to just comment, but my reputation is still lacking. So i'm adding another solution which solves the problem as well. I would really like to refute the statement made by @bmoeskau that solving this problem requires a 'hacky at best' solution, and since this came up recently in a discussion even though this post is 2 years old, i'd like to add my own two cents:

As @btford has pointed out, you seem to be trying to turn a recursive structure into a list, so you should flatten that structure into a list first. His solution does that, but there is an opinion that calling the function inside the template is inelegant. if that is true (honestly, i dont know) wouldnt that just require executing the function in the controller rather than the directive?

either way, your html requires a list, so the scope that renders it should have that list to work with. you simply have to flatten the structure inside your controller. once you have a $scope.rows array, you can generate the table with a single, simple ng-repeat. No hacking, no inelegance, simply the way it was designed to work.

Angulars directives aren't lacking functionality. They simply force you to write valid html. A colleague of mine had a similar issue, citing @bmoeskau in support of criticism over angulars templating/rendering features. When looking at the exact problem, it turned out he simply wanted to generate an open-tag, then a close tag somewhere else, etc.. just like in the good old days when we would concat our html from strings.. right? no.

as for flattening the structure into a list, here's another solution:

// assume the following structure
var structure = [
    {
        name: 'item1', subitems: [
            {
                name: 'item2', subitems: [
                ],
            }
        ],
    }
];
var flattened = structure.reduce((function(prop,resultprop){
    var f = function(p,c,i,a){
        p.push(c[resultprop]);
        if (c[prop] && c[prop].length > 0 )
          p = c[prop].reduce(f,p);
        return p;
    }
    return f;
})('subitems','name'),[]);

// flattened now is a list: ['item1', 'item2']

this will work for any tree-like structure that has sub items. If you want the whole item instead of a property, you can shorten the flattening function even more.

hope that helps.

try http://code.google.com/p/swinghtmltemplate/

this will allow you to create gui with html-like syntax

if (!secondaryPassword.equals(initialPassword)) 

Since 9.0 this is even easier:

SELECT id, 
       string_agg(some_column, ',')
FROM the_table
GROUP BY id

it is esy using time.compareTo(currentTime) < 0

import java.util.Calendar;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

public class MyTimerTask {
    static Timer singleTask = new Timer();

    @SuppressWarnings("deprecation")
    public static void main(String args[]) {
        // set download schedule time
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.HOUR_OF_DAY, 9);
        calendar.set(Calendar.MINUTE, 54);
        calendar.set(Calendar.SECOND, 0);
        Date time = (Date) calendar.getTime();
        // get current time
        Date currentTime = new Date();
        // if current time> time schedule set for next day
        if (time.compareTo(currentTime) < 0) {

            time.setDate(time.getDate() + 1);
        } else {
            // do nothing
        }
        singleTask.schedule(new TimerTask() {
            @Override
            public void run() {
                System.out.println("timer task is runing");
            }
        }, time);

    }

}

I use mpack.

mpack -s subject file [email protected]

Unfortunately mpack does not recognize '-' as an alias for stdin. But the following work, and can easily be wrapped in an (shell) alias or a script:

mpack -s subject /dev/stdin [email protected] < file

I'm using Excel 2003 -

The problem with using conditional formatting here is that you can't reference another worksheet or workbook in your conditions. What you can to do is set some column on sheet 1 equal to the appropriate column on sheet 2 (in your example =Sheet2!B6). I used Column F in my example below. Then you can use conditional formatting. Select the cell at Sheet 1, row , column 1 and then go to the conditional formatting menu. Choose "Formula Is" from the drop down and set the condition to "=$F$6=4". Click on the format button and then choose the Patterns tab. Choose the color you want and you're done.

You can use the format painter tool to apply conditional formatting to other cells, but be aware that by default Excel uses absolute references in the conditions. If you want them to be relative you'll need to remove the dollar signs from the condition.

You can have up to 3 conditions applied to a cell (use the add >> button at the bottom of the Conditional formatting dialog) so if the last row is fixed (for example, you know that it will always be row 10) you can use it as a condition to set the background color to none. Assuming that the last value you care about is in row 10 then (still assuming that you've set column F on sheet1 to the corresponding cells on sheet 2) then set the 1st condition to Formula Is =$F$10="" and the pattern to None. Make it the first condition and it will override any following conflicting statements.

#include<stdio.h>
#include<ctype.h>
#include<stdlib.h>
void main(int argc,char *argv[])
{
char *str ="ab234cid*(s349*(20kd", *ptr = str;
while (*ptr) { // While there are more characters to process...
    if ( isdigit(*ptr) ) {
        // Found a number
        int val = (int)strtol(ptr,&ptr, 10); // Read number
        printf("%d\n", val); // and print it.
    } else {
        // Otherwise, move on to the next character.
        ptr++;
    }
}

}

You can't modify the default dialogue for onbeforeunload, so your best bet may be to work with it.

window.onbeforeunload = function() {
    return 'You have unsaved changes!';
}

Here's a reference to this from Microsoft:

When a string is assigned to the returnValue property of window.event, a dialog box appears that gives users the option to stay on the current page and retain the string that was assigned to it. The default statement that appears in the dialog box, "Are you sure you want to navigate away from this page? ... Press OK to continue, or Cancel to stay on the current page.", cannot be removed or altered.

The problem seems to be:

1. When onbeforeunload is called, it will take the return value of the handler as window.event.returnValue.
2. It will then parse the return value as a string (unless it is null).
3. Since false is parsed as a string, the dialogue box will fire, which will then pass an appropriate true/false.

The result is, there doesn't seem to be a way of assigning false to onbeforeunload to prevent it from the default dialogue.

Additional notes on jQuery:

• Setting the event in jQuery may be problematic, as that allows other onbeforeunload events to occur as well. If you wish only for your unload event to occur I'd stick to plain ol' JavaScript for it.

• jQuery doesn't have a shortcut for onbeforeunload so you'd have to use the generic bind syntax.

  $(window).bind('beforeunload', function() {} );
  

Edit 09/04/2018: custom messages in onbeforeunload dialogs are deprecated since chrome-51 (cf: release note)

I got this error today and unlike all the above answers my error was due to a new reason.

In my Japanese translation strings.xml file, I had removed a required string.

Some how android mixed up all the other string and this caused an error.

The solution was to include all the strings from my normal, English strings.xml

Including those strings which weren't translated to Japanese.

MessageBox.Show(
  "your message",
  "window title", 
  MessageBoxButtons.OK, 
  MessageBoxIcon.Asterisk //For Info Asterisk
  MessageBoxIcon.Exclamation //For triangle Warning 
)

This is probably related to your database connection string or something like that.

I just solved this exception right now. What was happening is that I was using a connection string intended to be used when debugging in a different machine (the server).

I commented the wrong connection string in Web.config and uncommented the right one. Now I'm back in business... this is something I forget to look at after sometime not working in a given solution. ;)

The lifecycle is controlled by the application/user.

From the standard:

User agents should expire data from the local storage areas only for security reasons or when requested to do so by the user. User agents should always avoid deleting data while a script that could access that data is running.

This is at last what is working for me perfectly. I am using jqeasyui and it is working fine

$(document).on('keyup', 'input', function(e) {
 if(e.keyCode == 13 && e.target.type        !== 'submit') {
   var inputs =   $(e.target).parents("form").eq(0).find(":input:visible"),
   idx = inputs.index(e.target);
       if (idx == inputs.length - 1) {
          inputs[0].select()
       } else {
          inputs[idx + 1].focus();
          inputs[idx + 1].select();
       }
 }

});

I found that it's easy to write an app that can open another app.

Let's assume that we have two apps called FirstApp and SecondApp. When we open the FirstApp, we want to be able to open the SecondApp by clicking a button. The solution to do this is:

1. In SecondApp

   Go to the plist file of SecondApp and you need to add a URL Schemes with a string iOSDevTips(of course you can write another string.it's up to you).

2 . In FirstApp

Create a button with the below action:

- (void)buttonPressed:(UIButton *)button
{
  NSString *customURL = @"iOSDevTips://";

  if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:customURL]])
  {
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:customURL]];
  }
  else
  {
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"URL error"
                              message:[NSString stringWithFormat:@"No custom URL defined for %@", customURL]
                              delegate:self cancelButtonTitle:@"Ok" 
                              otherButtonTitles:nil];
    [alert show];
  }

}

That's it. Now when you can click the button in the FirstApp it should open the SecondApp.

If you are using XAMPP rather than WAMP, the path you go to is:

C:\xampp\phpMyAdmin\config.inc.php

When using VS2019, MVC5 - look under Migrations folder for file Configuration.cs Edit : AutomaticMigrationsEnabled = true

-

There's also go-render, which handles pointer recursion and lots of key sorting for string and int maps.

Installation:

go get github.com/luci/go-render/render

Example:

type customType int
type testStruct struct {
        S string
        V *map[string]int
        I interface{}
}

a := testStruct{
        S: "hello",
        V: &map[string]int{"foo": 0, "bar": 1},
        I: customType(42),
}

fmt.Println("Render test:")
fmt.Printf("fmt.Printf:    %#v\n", a)))
fmt.Printf("render.Render: %s\n", Render(a))

Which prints:

fmt.Printf:    render.testStruct{S:"hello", V:(*map[string]int)(0x600dd065), I:42}
render.Render: render.testStruct{S:"hello", V:(*map[string]int){"bar":1, "foo":0}, I:render.customType(42)}

Either use a User Defined Table

Or you can use CSV by defining your own CSV function as per This Post.

I'd probably recommend the second method, as your stored proc is already written in the correct format and you'll find it handy later on if you need to do this down the road.

Cheers!

GNU sed

sed '/\s*\(\S\+\s\+\)\{2\}\bsnow\(man\)\?\b/!d' file

Input:

C1    C2    C3    
1     a     snow   
2     b     snowman 
snow     c     sowman
      snow     snow     snowmanx

..output:

1     a     snow
2     b     snowman

The locks are always taken at DB level:-

Oracle official Document:- To avoid conflicts during a transaction, a DBMS uses locks, mechanisms for blocking access by others to the data that is being accessed by the transaction. (Note that in auto-commit mode, where each statement is a transaction, locks are held for only one statement.) After a lock is set, it remains in force until the transaction is committed or rolled back. For example, a DBMS could lock a row of a table until updates to it have been committed. The effect of this lock would be to prevent a user from getting a dirty read, that is, reading a value before it is made permanent. (Accessing an updated value that has not been committed is considered a dirty read because it is possible for that value to be rolled back to its previous value. If you read a value that is later rolled back, you will have read an invalid value.)

How locks are set is determined by what is called a transaction isolation level, which can range from not supporting transactions at all to supporting transactions that enforce very strict access rules.

One example of a transaction isolation level is TRANSACTION_READ_COMMITTED, which will not allow a value to be accessed until after it has been committed. In other words, if the transaction isolation level is set to TRANSACTION_READ_COMMITTED, the DBMS does not allow dirty reads to occur. The interface Connection includes five values that represent the transaction isolation levels you can use in JDBC.

def  lst = ["A2", "A1", "k22", "A6", "a3", "a5", "A4", "A7"]; 

println lst.sort { a, b -> a.compareToIgnoreCase b }

This should be able to sort with case insensitive but I am not sure how to tackle the alphanumeric strings lists

Make sure you've set your locale settings right before running the script from the shell, e.g.

$ locale -a | grep "^en_.\+UTF-8"
en_GB.UTF-8
en_US.UTF-8
$ export LC_ALL=en_GB.UTF-8
$ export LANG=en_GB.UTF-8

Docs: man locale, man setlocale.

Pass 65536 to mysql_connect as 5th parameter.

Example:

$conn = mysql_connect('localhost','username','password', true, 65536 /* here! */) 
    or die("cannot connect");
mysql_select_db('database_name') or die("cannot use database");
mysql_query("
    INSERT INTO table1 (field1,field2) VALUES(1,2);

    INSERT INTO table2 (field3,field4,field5) VALUES(3,4,5);

    DELETE FROM table3 WHERE field6 = 6;

    UPDATE table4 SET field7 = 7 WHERE field8 = 8;

    INSERT INTO table5
       SELECT t6.field11, t6.field12, t7.field13
       FROM table6 t6
       INNER JOIN table7 t7 ON t7.field9 = t6.field10;

    -- etc
");

When you are working with mysql_fetch_* or mysql_num_rows, or mysql_affected_rows, only the first statement is valid.

For example, the following codes, the first statement is INSERT, you cannot execute mysql_num_rows and mysql_fetch_*. It is okay to use mysql_affected_rows to return how many rows inserted.

$conn = mysql_connect('localhost','username','password', true, 65536) or die("cannot connect");
mysql_select_db('database_name') or die("cannot use database");
mysql_query("
    INSERT INTO table1 (field1,field2) VALUES(1,2);
    SELECT * FROM table2;
");

Another example, the following codes, the first statement is SELECT, you cannot execute mysql_affected_rows. But you can execute mysql_fetch_assoc to get a key-value pair of row resulted from the first SELECT statement, or you can execute mysql_num_rows to get number of rows based on the first SELECT statement.

$conn = mysql_connect('localhost','username','password', true, 65536) or die("cannot connect");
mysql_select_db('database_name') or die("cannot use database");
mysql_query("
    SELECT * FROM table2;
    INSERT INTO table1 (field1,field2) VALUES(1,2);
");

You are correct, @RequestBody annotated parameter is expected to hold the entire body of the request and bind to one object, so you essentially will have to go with your options.

If you absolutely want your approach, there is a custom implementation that you can do though:

Say this is your json:

{
    "str1": "test one",
    "str2": "two test"
}

and you want to bind it to the two params here:

@RequestMapping(value = "/Test", method = RequestMethod.POST)
public boolean getTest(String str1, String str2)

First define a custom annotation, say @JsonArg, with the JSON path like path to the information that you want:

public boolean getTest(@JsonArg("/str1") String str1, @JsonArg("/str2") String str2)

Now write a Custom HandlerMethodArgumentResolver which uses the JsonPath defined above to resolve the actual argument:

import java.io.IOException;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.io.IOUtils;
import org.springframework.core.MethodParameter;
import org.springframework.http.server.ServletServerHttpRequest;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;

import com.jayway.jsonpath.JsonPath;

public class JsonPathArgumentResolver implements HandlerMethodArgumentResolver{

    private static final String JSONBODYATTRIBUTE = "JSON_REQUEST_BODY";
    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return parameter.hasParameterAnnotation(JsonArg.class);
    }

    @Override
    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
        String body = getRequestBody(webRequest);
        String val = JsonPath.read(body, parameter.getMethodAnnotation(JsonArg.class).value());
        return val;
    }

    private String getRequestBody(NativeWebRequest webRequest){
        HttpServletRequest servletRequest = webRequest.getNativeRequest(HttpServletRequest.class);
        String jsonBody = (String) servletRequest.getAttribute(JSONBODYATTRIBUTE);
        if (jsonBody==null){
            try {
                String body = IOUtils.toString(servletRequest.getInputStream());
                servletRequest.setAttribute(JSONBODYATTRIBUTE, body);
                return body;
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return "";

    }
}

Now just register this with Spring MVC. A bit involved, but this should work cleanly.

There are many ways to do this in R. Specifically, by, aggregate, split, and plyr, cast, tapply, data.table, dplyr, and so forth.

Broadly speaking, these problems are of the form split-apply-combine. Hadley Wickham has written a beautiful article that will give you deeper insight into the whole category of problems, and it is well worth reading. His plyr package implements the strategy for general data structures, and dplyr is a newer implementation performance tuned for data frames. They allow for solving problems of the same form but of even greater complexity than this one. They are well worth learning as a general tool for solving data manipulation problems.

Performance is an issue on very large datasets, and for that it is hard to beat solutions based on data.table. If you only deal with medium-sized datasets or smaller, however, taking the time to learn data.table is likely not worth the effort. dplyr can also be fast, so it is a good choice if you want to speed things up, but don't quite need the scalability of data.table.

Many of the other solutions below do not require any additional packages. Some of them are even fairly fast on medium-large datasets. Their primary disadvantage is either one of metaphor or of flexibility. By metaphor I mean that it is a tool designed for something else being coerced to solve this particular type of problem in a 'clever' way. By flexibility I mean they lack the ability to solve as wide a range of similar problems or to easily produce tidy output.

Examples

base functions

tapply:

tapply(df$speed, df$dive, mean)
#     dive1     dive2 
# 0.5419921 0.5103974

aggregate:

aggregate takes in data.frames, outputs data.frames, and uses a formula interface.

aggregate( speed ~ dive, df, mean )
#    dive     speed
# 1 dive1 0.5790946
# 2 dive2 0.4864489

by:

In its most user-friendly form, it takes in vectors and applies a function to them. However, its output is not in a very manipulable form.:

res.by <- by(df$speed, df$dive, mean)
res.by
# df$dive: dive1
# [1] 0.5790946
# ---------------------------------------
# df$dive: dive2
# [1] 0.4864489

To get around this, for simple uses of by the as.data.frame method in the taRifx library works:

library(taRifx)
as.data.frame(res.by)
#    IDX1     value
# 1 dive1 0.6736807
# 2 dive2 0.4051447

split:

As the name suggests, it performs only the "split" part of the split-apply-combine strategy. To make the rest work, I'll write a small function that uses sapply for apply-combine. sapply automatically simplifies the result as much as possible. In our case, that means a vector rather than a data.frame, since we've got only 1 dimension of results.

splitmean <- function(df) {
  s <- split( df, df$dive)
  sapply( s, function(x) mean(x$speed) )
}
splitmean(df)
#     dive1     dive2 
# 0.5790946 0.4864489 

External packages

data.table:

library(data.table)
setDT(df)[ , .(mean_speed = mean(speed)), by = dive]
#    dive mean_speed
# 1: dive1  0.5419921
# 2: dive2  0.5103974

dplyr:

library(dplyr)
group_by(df, dive) %>% summarize(m = mean(speed))

plyr (the pre-cursor of dplyr)

Here's what the official page has to say about plyr:

It’s already possible to do this with base R functions (like split and the apply family of functions), but plyr makes it all a bit easier with:

• totally consistent names, arguments and outputs
• convenient parallelisation through the foreach package
• input from and output to data.frames, matrices and lists
• progress bars to keep track of long running operations
• built-in error recovery, and informative error messages
• labels that are maintained across all transformations

In other words, if you learn one tool for split-apply-combine manipulation it should be plyr.

library(plyr)
res.plyr <- ddply( df, .(dive), function(x) mean(x$speed) )
res.plyr
#    dive        V1
# 1 dive1 0.5790946
# 2 dive2 0.4864489

reshape2:

The reshape2 library is not designed with split-apply-combine as its primary focus. Instead, it uses a two-part melt/cast strategy to perform a wide variety of data reshaping tasks. However, since it allows an aggregation function it can be used for this problem. It would not be my first choice for split-apply-combine operations, but its reshaping capabilities are powerful and thus you should learn this package as well.

library(reshape2)
dcast( melt(df), variable ~ dive, mean)
# Using dive as id variables
#   variable     dive1     dive2
# 1    speed 0.5790946 0.4864489

Benchmarks

10 rows, 2 groups

library(microbenchmark)
m1 <- microbenchmark(
  by( df$speed, df$dive, mean),
  aggregate( speed ~ dive, df, mean ),
  splitmean(df),
  ddply( df, .(dive), function(x) mean(x$speed) ),
  dcast( melt(df), variable ~ dive, mean),
  dt[, mean(speed), by = dive],
  summarize( group_by(df, dive), m = mean(speed) ),
  summarize( group_by(dt, dive), m = mean(speed) )
)

> print(m1, signif = 3)
Unit: microseconds
                                           expr  min   lq   mean median   uq  max neval      cld
                    by(df$speed, df$dive, mean)  302  325  343.9    342  362  396   100  b      
              aggregate(speed ~ dive, df, mean)  904  966 1012.1   1020 1060 1130   100     e   
                                  splitmean(df)  191  206  249.9    220  232 1670   100 a       
  ddply(df, .(dive), function(x) mean(x$speed)) 1220 1310 1358.1   1340 1380 2740   100      f  
         dcast(melt(df), variable ~ dive, mean) 2150 2330 2440.7   2430 2490 4010   100        h
                   dt[, mean(speed), by = dive]  599  629  667.1    659  704  771   100   c     
 summarize(group_by(df, dive), m = mean(speed))  663  710  774.6    744  782 2140   100    d    
 summarize(group_by(dt, dive), m = mean(speed)) 1860 1960 2051.0   2020 2090 3430   100       g 

autoplot(m1)

As usual, data.table has a little more overhead so comes in about average for small datasets. These are microseconds, though, so the differences are trivial. Any of the approaches works fine here, and you should choose based on:

• What you're already familiar with or want to be familiar with (plyr is always worth learning for its flexibility; data.table is worth learning if you plan to analyze huge datasets; by and aggregate and split are all base R functions and thus universally available)
• What output it returns (numeric, data.frame, or data.table -- the latter of which inherits from data.frame)

10 million rows, 10 groups

But what if we have a big dataset? Let's try 10^7 rows split over ten groups.

df <- data.frame(dive=factor(sample(letters[1:10],10^7,replace=TRUE)),speed=runif(10^7))
dt <- data.table(df)
setkey(dt,dive)

m2 <- microbenchmark(
  by( df$speed, df$dive, mean),
  aggregate( speed ~ dive, df, mean ),
  splitmean(df),
  ddply( df, .(dive), function(x) mean(x$speed) ),
  dcast( melt(df), variable ~ dive, mean),
  dt[,mean(speed),by=dive],
  times=2
)

> print(m2, signif = 3)
Unit: milliseconds
                                           expr   min    lq    mean median    uq   max neval      cld
                    by(df$speed, df$dive, mean)   720   770   799.1    791   816   958   100    d    
              aggregate(speed ~ dive, df, mean) 10900 11000 11027.0  11000 11100 11300   100        h
                                  splitmean(df)   974  1040  1074.1   1060  1100  1280   100     e   
  ddply(df, .(dive), function(x) mean(x$speed))  1050  1080  1110.4   1100  1130  1260   100      f  
         dcast(melt(df), variable ~ dive, mean)  2360  2450  2492.8   2490  2520  2620   100       g 
                   dt[, mean(speed), by = dive]   119   120   126.2    120   122   212   100 a       
 summarize(group_by(df, dive), m = mean(speed))   517   521   531.0    522   532   620   100   c     
 summarize(group_by(dt, dive), m = mean(speed))   154   155   174.0    156   189   321   100  b      

autoplot(m2)

Then data.table or dplyr using operating on data.tables is clearly the way to go. Certain approaches (aggregate and dcast) are beginning to look very slow.

10 million rows, 1,000 groups

If you have more groups, the difference becomes more pronounced. With 1,000 groups and the same 10^7 rows:

df <- data.frame(dive=factor(sample(seq(1000),10^7,replace=TRUE)),speed=runif(10^7))
dt <- data.table(df)
setkey(dt,dive)

# then run the same microbenchmark as above
print(m3, signif = 3)
Unit: milliseconds
                                           expr   min    lq    mean median    uq   max neval    cld
                    by(df$speed, df$dive, mean)   776   791   816.2    810   828   925   100  b    
              aggregate(speed ~ dive, df, mean) 11200 11400 11460.2  11400 11500 12000   100      f
                                  splitmean(df)  5940  6450  7562.4   7470  8370 11200   100     e 
  ddply(df, .(dive), function(x) mean(x$speed))  1220  1250  1279.1   1280  1300  1440   100   c   
         dcast(melt(df), variable ~ dive, mean)  2110  2190  2267.8   2250  2290  2750   100    d  
                   dt[, mean(speed), by = dive]   110   111   113.5    111   113   143   100 a     
 summarize(group_by(df, dive), m = mean(speed))   625   630   637.1    633   644   701   100  b    
 summarize(group_by(dt, dive), m = mean(speed))   129   130   137.3    131   142   213   100 a     

autoplot(m3)

So data.table continues scaling well, and dplyr operating on a data.table also works well, with dplyr on data.frame close to an order of magnitude slower. The split/sapply strategy seems to scale poorly in the number of groups (meaning the split() is likely slow and the sapply is fast). by continues to be relatively efficient--at 5 seconds, it's definitely noticeable to the user but for a dataset this large still not unreasonable. Still, if you're routinely working with datasets of this size, data.table is clearly the way to go - 100% data.table for the best performance or dplyr with dplyr using data.table as a viable alternative.

I think it should be good if this macro will work in device and simulator, below are the solution.

#define IS_WIDESCREEN (fabs((double)[[UIScreen mainScreen]bounds].size.height - (double)568) < DBL_EPSILON)
#define IS_IPHONE (([[[UIDevice currentDevice] model] isEqualToString:@"iPhone"]) || ([[[UIDevice currentDevice] model] isEqualToString: @"iPhone Simulator"]))
#define IS_IPOD   ([[[UIDevice currentDevice]model] isEqualToString:@"iPod touch"])
#define IS_IPHONE_5 ((IS_IPHONE || IS_IPOD) && IS_WIDESCREEN)

Lets say you are developing a game and you want the game user to login their facebook profile(to get your profile information) before playing it,so how your game is going to access facebook? Now here comes the API.Facebook has already written the program(API) for you to do it, you have to just use those programs in your game application.using Facebook-API you can use their services in your application.Here is a good and detailed look on API... http://money.howstuffworks.com/business-communications/how-to-leverage-an-api-for-conferencing1.htm

You can do it this way:

xml.Descendants().Where(p => p.Name.LocalName == "Name of the node to find")

where xml is a XDocument.

Be aware that the property Name returns an object that has a LocalName and a Namespace. That's why you have to use Name.LocalName if you want to compare by name.

You have two options, either float:left or display:inline-block.

Both methods have their caveats. It seems that display:inline-block is more common nowadays, as it avoids some of the issues of floating.

Read this article http://designshack.net/articles/css/whats-the-deal-with-display-inline-block/ or this one http://www.vanseodesign.com/css/inline-blocks/ for a more in detail discussion.

I had this issue and solved it by the command : git gc The above command remove temp and unnecessary files. (Garbage collector.)

you can try setting the padding instead of the height/width.

Hi it was a challenge to get it work on Mac so anyway here is a solution

1. Install macports
2. Install rvm
3. Restart Terminal
4. Run rvm requirements then run rvm install 2.1
5. And last step to run gem install compass --pre

I'm not sure but ruby version on Mavericks doesn't support native extensions etc... so if you point to other ruby version like I did "2.1" it works fine.

Try using the following on the JavaScript side:

window.location.href = '@Url.Action("Index", "Controller")';

If you want to pass parameters to the @Url.Action, you can do this:

var reportDate = $("#inputDateId").val();//parameter
var url = '@Url.Action("Index", "Controller", new {dateRequested = "findme"})';
window.location.href = url.replace('findme', reportDate);

I have noticed that XMLSpy(at least 2011 version)needs a targetNameSpace defined if elementFormDefault="qualified" is used. Otherwise won't validate. And also won't generate xmls with namespace prefixes

You need a SQL profiler, which actually runs outside SQL Management Studio. If you have a paid version of SQL Server (like the developer edition), it should be included in that as another utility.

If you're using a free edition (SQL Express), they have freeware profiles that you can download. I've used AnjLab's profiler (available at http://sites.google.com/site/sqlprofiler), and it seemed to work well.

In the previous answer also in the section <selector>...</selector> you may need:

<item android:state_pressed="true" android:drawable="@drawable/checkbox_pressed" ></item>

Also make sure there is not as JRE before your JDK in PATH on Windows. Oracle always stuffs its own JRE into the path before anything else (I had installed Oracle Lite after I installed the android sdk).

numpy has arrays that allow you to use other lists/arrays as indices:

import numpy
S=numpy.array(s)
S[a]=m

I prefer to use two options, white spaces and empty:

test = test.Where(x => !string.IsNullOrEmpty(x)).ToArray();
test = test.Where(x => !string.IsNullOrWhiteSpace(x)).ToArray();

               /* Didn't test it but this should work "out of the box" */

                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                //you should edit this to fit your needs
                builder.setTitle("Double Edit Text");

                final EditText one = new EditText(this);
                from.setHint("one");//optional
                final EditText two = new EditText(this);
                to.setHint("two");//optional

                //in my example i use TYPE_CLASS_NUMBER for input only numbers
                from.setInputType(InputType.TYPE_CLASS_NUMBER);
                to.setInputType(InputType.TYPE_CLASS_NUMBER);

                LinearLayout lay = new LinearLayout(this);
                lay.setOrientation(LinearLayout.VERTICAL);
                lay.addView(one);
                lay.addView(two);
                builder.setView(lay);

                // Set up the buttons
                builder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                  public void onClick(DialogInterface dialog, int whichButton) {
                       //get the two inputs
                       int i = Integer.parseInt(one.getText().toString());
                       int j = Integer.parseInt(two.getText().toString());
                  }
                });

                builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                  public void onClick(DialogInterface dialog, int whichButton) {
                       dialog.cancel();
                }
              });
              builder.show();

I suggest Validator.nu's parser, based on the HTML5 parsing algorithm. It is the parser used in Mozilla from 2010-05-03

You've already got it: A if test else B is a valid Python expression. The only problem with your dict comprehension as shown is that the place for an expression in a dict comprehension must have two expressions, separated by a colon:

{ (some_key if condition else default_key):(something_if_true if condition
          else something_if_false) for key, value in dict_.items() }

The final if clause acts as a filter, which is different from having the conditional expression.

Just put this code to run

$rootScope.$on("$routeChangeSuccess", function (event, currentRoute, previousRoute) {

    window.scrollTo(0, 0);

});

The IN operator is nothing but a fancy OR of '=' comparisons. In fact it is so 'nothing but' that in SQL 2000 there was a stack overflow bug due to expansion of the IN into ORs when the list contained about 10k entries (yes, there are people writing 10k IN entries...). So you can't use any wildcard matching in it.

Remove the extension altogether and then double-click it. Most system shell scripts are like this. As long as it has a shebang it will work.

Nick has the right answer, but I wanted to add you could also get the cell data without needing the class name

var Something = $(this).closest('tr').find('td:eq(1)').text();

:eq(#) has a zero based index (link).

You have to reimplement it using <xsl:choose> tag:

       <xsl:choose>
         <xsl:when test="$CreatedDate > $IDAppendedDate">
           <h2> mooooooooooooo </h2>
         </xsl:when>
         <xsl:otherwise>
          <h2> dooooooooooooo </h2>
         </xsl:otherwise>
       </xsl:choose>

The backslash indicates a special escape character. Therefore, directory = path_to_directory.replace("\", "\\") would cause Python to think that the first argument to replace didn't end until the starting quotation of the second argument since it understood the ending quotation as an escape character.

directory=path_to_directory.replace("\\","\\\\")

In my case I needed a lower JRE, so I had to tell IntelliJ to use a different one in "Platform Settings"

• Platform Settings > SDKs ( ⌘+; )
• Click the + button to add a new SDK (or rename and load an existing one)
• Choose the /Contents/Home directory from the appropriate SDK
  (i.e. /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home)

You are echoing outside the body tag of your HTML. Put your echos there, and you should be fine.

Also, remove the onclick="alert()" from your submit. This is the cause for your first undefined message.

<?php
  $posted = false;
  if( $_POST ) {
    $posted = true;

    // Database stuff here...
    // $result = mysql_query( ... )
    $result = $_POST['name'] == "danny"; // Dummy result
  }
?>

<html>
  <head></head>
  <body>

  <?php
    if( $posted ) {
      if( $result ) 
        echo "<script type='text/javascript'>alert('submitted successfully!')</script>";
      else
        echo "<script type='text/javascript'>alert('failed!')</script>";
    }
  ?>
    <form action="" method="post">
      Name:<input type="text" id="name" name="name"/>
      <input type="submit" value="submit" name="submit"/>
    </form>
  </body>
</html>

If your URL has dots in the domain name, IE will treat it like it's an internet address and not local. You have at least two options:

1. Get an alias to use in the URL to replace server.domain. For example, myapp.
2. Follow the steps below on your computer.

Go to the site and cancel the login dialog. Let this happen:

In IE’s settings:

If you removed the make all line from your "fresh" target:

fresh :
    rm -f *.o $(EXEC)
    clear

You could simply run the command make fresh all, which will execute as make fresh; make all.

Some might consider this as a second instance of make, but it's certainly not a sub-instance of make (a make inside of a make), which is what your attempt seemed to result in.

When the button has a background from the drawable, we can add ripple effect to the foreground parameter.. Check below code its working for my button with a different background

    <Button
    android:layout_width="wrap_content"
    android:layout_height="40dp"
    android:gravity="center"
    android:layout_centerHorizontal="true"                                                             
    android:background="@drawable/shape_login_button"
    android:foreground="?attr/selectableItemBackgroundBorderless"
    android:clickable="true"
    android:text="@string/action_button_login"
     />

Add below parameter for the ripple effect

   android:foreground="?attr/selectableItemBackgroundBorderless"
   android:clickable="true"

For reference refer below link https://jascode.wordpress.com/2017/11/11/how-to-add-ripple-effect-to-an-android-app/

For me doesnt put jars to lib directory and set to Build path enought.

The right thing was add it to Deployment Assembly.

Original asnwer

Note this isn't at heart a question about JComboBox, but about any collection that can include multiple types of objects. The same could be said for "How do I get a String out of a List?" or "How do I get a String out of an Object[]?"

It means that servlet jar is missing .

check the libraries for your project. Configure your buildpath download **

servlet-api.jar

** and import it in your project.

I use these:

.right {display:table; margin:-18px 0 0 auto;}
.center {display:table; margin:-18px auto 0 auto;}

easy enough to use the unname() function:

data.frame <- unname(data.frame)

Read this:

http://www.quora.com/OAuth-2-0/How-does-OAuth-2-0-work

or an even simpler but quick explanation:

http://agileanswer.blogspot.se/2012/08/oauth-20-for-my-ninth-grader.html

The redirect URI is the callback entry point of the app. Think about how OAuth for Facebook works - after end user accepts permissions, "something" has to be called by Facebook to get back to the app, and that "something" is the redirect URI. Furthermore, the redirect URI should be different than the initial entry point of the app.

The other key point to this puzzle is that you could launch your app from a URL given to a webview. To do this, i simply followed the guide on here:

http://iosdevelopertips.com/cocoa/launching-your-own-application-via-a-custom-url-scheme.html

and

http://inchoo.net/mobile-development/iphone-development/launching-application-via-url-scheme/

note: on those last 2 links, "http://" works in opening mobile safari but "tel://" doesn't work in simulator

in the first app, I call

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"secondApp://"]];

In my second app, I register "secondApp" (and NOT "secondApp://") as the name of URL Scheme, with my company as the URL identifier.

I have achieved this with following
Edit > Blank Operations > Remove Unnecessary Blank and EOL

<TextView
                android:id="@+id/layone"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Previous Page"
                android:textColor="#000000"
                android:textSize="16dp"
                android:paddingLeft="10dp"
                android:layout_marginTop="10dp"
                android:visibility="gone" />

layone is a TextView.
You got your id wrong.

LinearLayout layone= (LinearLayout) view.findViewById(R.id.laytwo);// change id here

layone.setVisibility(View.VISIBLE);

should do the job.

or change like this to show the TextView:

TextView layone= (TextView) view.findViewById(R.id.layone);

    layone.setVisibility(View.VISIBLE);

Just remove the .value, like this:

function(arrayP){    
   for(var i = 0; i < arrayP.length; i++){
      alert(arrayP[i]);    //no .value here
   }
}

Sure you can pass an array, but to get the element at that position, use only arrayName[index], the .value would be getting the value property off an object at that position in the array - which for things like strings, numbers, etc doesn't exist. For example, "myString".value would also be undefined.

Read this Bug Issue: http://bugs.jquery.com/ticket/11586

Quoting the RFC 2616 Fielding

The DELETE method requests that the origin server delete the resource identified by the Request-URI.

So you need to pass the data in the URI

$.ajax({
    url: urlCall + '?' + $.param({"Id": Id, "bolDeleteReq" : bolDeleteReq}),
    type: 'DELETE',
    success: callback || $.noop,
    error: errorCallback || $.noop
});

If you have a large index, you should use a default value

   <field ... default="EMPTY" />

and then query for this default value. This is much more efficient than q=-id:["" TO *]

There's also a really useful discussion about converting the array in place, In-place type conversion of a NumPy array. If you're concerned about copying your array (which is whatastype() does) definitely check out the link.

If you want to set $_POST['text'] to another value, why not use:

$_POST['text'] = $var;

on next.php?

I'll provide an objective answer based on my experience with both, I'll also skip the theory behind them, assuming you already know it and/or other answers has already provided enough.

RabbitMQ: I'd pick this one if my requirements are simple enough to deal with system communication through channels/queues, retention and streaming is not a requirement. For e.g. When the manufacture system built the asset it does notify the agreement system to configure the contracts and so on.

Kafka: Event sourcing requirement mainly, when you may need to deal with streams (sometimes infinite), huge amount of data at once properly balanced, replay offsets in order to ensure a given state and so on. Keep in mind that this architecture brings more complexity as well, since it does include concepts such as topics/partitions/brokers/tombstone messages, etc. as a first class importance.

console.log( String.fromCharCode(event.charCode) );

no need to map character i guess.

With re-encoding:

ffmpeg -y -i seeing_noaudio.mp4 -vf "setpts=1.25*PTS" -r 24 seeing.mp4

Without re-encoding:

First step - extract video to raw bitstream

ffmpeg -y -i seeing_noaudio.mp4 -c copy -f h264 seeing_noaudio.h264

Remux with new framerate

ffmpeg -y -r 24 -i seeing_noaudio.h264 -c copy seeing.mp4

Modern browsers support native querySelectorAll so you can do:

document.querySelectorAll('[data-foo="value"]');

https://developer.mozilla.org/en-US/docs/Web/API/Document.querySelectorAll

Details about browser compatibility:

• http://quirksmode.org/dom/core/#t14
• http://caniuse.com/queryselector

You can use jQuery to support obsolete browsers (IE9 and older):

$('[data-foo="value"]');

SELECT *,concat_ws(' ',first_name,last_name) AS whole_name FROM users HAVING whole_name LIKE '%$search_term%'

...is probably what you want.

Actually I am preferring to use NEW_BROKER ,it is working fine on all cases:

ALTER DATABASE [dbname] SET NEW_BROKER WITH ROLLBACK IMMEDIATE;

Using the appropriate VerificationMode:

import static org.mockito.Mockito.atLeast;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

verify(mockObject, atLeast(2)).someMethod("was called at least twice");
verify(mockObject, times(3)).someMethod("was called exactly three times");

Here is a talk about the differences between web sockets and server sent events. Since Java EE 7 a WebSocket API is already part of the specification and it seems that server sent events will be released in the next version of the enterprise edition.

There's actually a good reason:
The non-static access does not always work, for reasons of ambiguity.

Suppose we have two classes, A and B, the latter being a subclass of A, with static fields with the same name:

public class A {
    public static String VALUE = "Aaa";
}

public class B extends A {
    public static String VALUE = "Bbb";
}

Direct access to the static variable:

A.VALUE (="Aaa")
B.VALUE (="Bbb")

Indirect access using an instance (gives a compiler warning that VALUE should be statically accessed):

new B().VALUE (="Bbb")

So far, so good, the compiler can guess which static variable to use, the one on the superclass is somehow farther away, seems somehow logical.

Now to the point where it gets tricky: Interfaces can also have static variables.

public interface C {
    public static String VALUE = "Ccc";
}

public interface D {
    public static String VALUE = "Ddd";
}

Let's remove the static variable from B, and observe following situations:

• B implements C, D
• B extends A implements C
• B extends A implements C, D
• B extends A implements C where A implements D
• B extends A implements C where C extends D
• ...

The statement new B().VALUE is now ambiguous, as the compiler cannot decide which static variable was meant, and will report it as an error:

error: reference to VALUE is ambiguous
both variable VALUE in C and variable VALUE in D match

And that's exactly the reason why static variables should be accessed in a static way.

Assume that you have

const appRoutes: Routes = [
  {path: 'recipes', component: RecipesComponent }
];

<a routerLink ="recipes">Recipes</a>

It means that clicking Recipes hyperlink will jump to http://localhost:4200/recipes

Assume that the parameter is 1

<a [routerLink] = "['/recipes', parameter]"></a>

It means that passing dynamic parameter, 1 to the link, then you navigate to http://localhost:4200/recipes/1

When you type, if caplock is on, it could automatically convert the current char to lowercase. That way even if caplocks is on, it will not behave like it is on the current page. To inform your users you could display a text saying that caplocks is on, but that the form entries are converted.

Newer Edit: Lots of things have changed since this question was initially posted - there's a lot of really good information in wallacer's revised answer as well as VisioN's excellent breakdown

Edit: Just because this is the accepted answer; wallacer's answer is indeed much better:

return filename.split('.').pop();

My old answer:

return /[^.]+$/.exec(filename);

Should do it.

Edit: In response to PhiLho's comment, use something like:

return (/[.]/.exec(filename)) ? /[^.]+$/.exec(filename) : undefined;

Arduino specifically provides absolutely no way to exit their loop function, as exhibited by the code that actually runs it:

setup();

for (;;) {
    loop();
    if (serialEventRun) serialEventRun();
}

Besides, on a microcontroller there isn't anything to exit to in the first place.

The closest you can do is to just halt the processor. That will stop processing until it's reset.

Just use requests' features:

import requests
from requests.adapters import HTTPAdapter
from requests.packages.urllib3.util.retry import Retry


session = requests.Session()
retry = Retry(connect=3, backoff_factor=0.5)
adapter = HTTPAdapter(max_retries=retry)
session.mount('http://', adapter)
session.mount('https://', adapter)

session.get(url)

This will GET the URL and retry 3 times in case of requests.exceptions.ConnectionError. backoff_factor will help to apply delays between attempts to avoid to fail again in case of periodic request quota.

Take a look at requests.packages.urllib3.util.retry.Retry, it has many options to simplify retries.

Here's a lambda solution not as user-friendly as @Paul Croarkin's in one way (the level is effectively passed twice). But I think (a) the user should pass the Logger; and (b) AFAIU the original question was not asking for a convenient way for everywhere in the application, only a situation with few usages inside a library.

package test.lambda;
import java.util.function.*;
import org.slf4j.*;

public class LoggerLambda {
    private static final Logger LOG = LoggerFactory.getLogger(LoggerLambda.class);

    private LoggerLambda() {}

    public static void log(BiConsumer<? super String, ? super Object[]> logFunc, Supplier<Boolean> logEnabledPredicate, 
            String format, Object... args) {
        if (logEnabledPredicate.get()) {
            logFunc.accept(format, args);
        }
    }

    public static void main(String[] args) {
        int a = 1, b = 2, c = 3;
        Throwable e = new Exception("something went wrong", new IllegalArgumentException());
        log(LOG::info, LOG::isInfoEnabled, "a = {}, b = {}, c = {}", a, b, c);

        // warn(String, Object...) instead of warn(String, Throwable), but prints stacktrace nevertheless
        log(LOG::warn, LOG::isWarnEnabled, "error doing something: {}", e, e);
    }
}

Since slf4j allows a Throwable (whose stack trace should be logged) inside the varargs param, I think there is no need for overloading the log helper method for other consumers than (String, Object[]).

The 1*y method works in Numpy too:

>>> import numpy as np
>>> x = np.array([4, 3, 2, 1])
>>> y = 2 >= x
>>> y
array([False, False,  True,  True], dtype=bool)
>>> 1*y                      # Method 1
array([0, 0, 1, 1])
>>> y.astype(int)            # Method 2
array([0, 0, 1, 1]) 

If you are asking for a way to convert Python lists from Boolean to int, you can use map to do it:

>>> testList = [False, False,  True,  True]
>>> map(lambda x: 1 if x else 0, testList)
[0, 0, 1, 1]
>>> map(int, testList)
[0, 0, 1, 1]

Or using list comprehensions:

>>> testList
[False, False, True, True]
>>> [int(elem) for elem in testList]
[0, 0, 1, 1]

It depends on the nature of your application. And, since you did not describe it in great detail, it is an impossible question to answer. I find Backbone to be the easiest, but I work in Angular all day. Performance is more up to the coder than the framework, in my opinion.

Are you doing heavy DOM manipulation? I would use jQuery and Backbone.

Very data driven app? Angular with its nice data binding.

Game programming? None - direct to canvas; maybe a game engine.

Normally you would select IDs using the ID selector #, but for more complex matches you can use the attribute-starts-with selector (as a jQuery selector, or as a CSS3 selector):

div[id^="player_"]

If you are able to modify that HTML, however, you should add a class to your player divs then target that class. You'll lose the additional specificity offered by ID selectors anyway, as attribute selectors share the same specificity as class selectors. Plus, just using a class makes things much simpler.

Tips of using OS-dependent function to terminate C++ thread:

1. std::thread::native_handle() only can get the thread’s valid native handle type before calling join() or detach(). After that, native_handle() returns 0 - pthread_cancel() will coredump.

2. To effectively call native thread termination function(e.g. pthread_cancel()), you need to save the native handle before calling std::thread::join() or std::thread::detach(). So that your native terminator always has a valid native handle to use.

More explanations please refer to: http://bo-yang.github.io/2017/11/19/cpp-kill-detached-thread .

As mentioned above, there are issues with using the top-most scope in your script file. Here is another issue: The script file might be run from a context that is not the global context in some run-time environment.

It has been proposed to assign the global to window directly. But that is also run-time dependent and does not work in Node etc. It goes to show that portable global variable management needs some careful consideration and extra effort. Maybe they will fix it in future ECMS versions!

For now, I would recommend something like this to support proper global management for all run-time environments:

/**
 * Exports the given object into the global context.
 */
var exportGlobal = function(name, object) {
    if (typeof(global) !== "undefined")  {
        // Node.js
        global[name] = object;
    }
    else if (typeof(window) !== "undefined") {
        // JS with GUI (usually browser)
        window[name] = object;
    }
    else {
        throw new Error("Unkown run-time environment. Currently only browsers and Node.js are supported.");
    }
};


// export exportGlobal itself
exportGlobal("exportGlobal", exportGlobal);

// create a new global namespace
exportGlobal("someothernamespace", {});

It's a bit more typing, but it makes your global variable management future-proof.

Disclaimer: Part of this idea came to me when looking at previous versions of stacktrace.js.

I reckon, one can also use Webpack or other tools to get more reliable and less hackish detection of the run-time environment.

Split (",") can convert Strings with commas into a String array, here is my code snippet.

    var input ='Hybrid App, Phone-Gap, Apache Cordova, HTML5, JavaScript, BootStrap, JQuery, CSS3, Android Wear API'
    var output = input.split(",");
    console.log(output);

["Hybrid App", " Phone-Gap", " Apache Cordova", " HTML5", " JavaScript", " BootStrap", " JQuery", " CSS3", " Android Wear API"]

I was able to resolve this like so:

$ brew update
$ brew doctor
$ brew uninstall python
$ brew install python --build-from-source    # took ~5 mins
$ python --version                           # => Python 2.7.9
$ pip install --upgrade pip

I'm running w/ the following stuff (as of Jan 2, 2015):

OS X Yosemite
Version 10.10.1

$ brew -v
Homebrew 0.9.5

$ python --version
Python 2.7.9

$ ipython --version
2.2.0

$ pip --version
pip 6.0.3 from /usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.3-py2.7.egg (python 2.7)

$ which pip
/usr/local/bin/pip

Java 8 streams

String body = request.getReader().lines()
    .reduce("", (accumulator, actual) -> accumulator + actual);

I believe this is what you're looking for:

Convert Decimal Numbers to Text showing only the non-zero decimals

Especially this line might be helpful:

StringVar text     :=  Totext ( {Your.NumberField} , 6 , ""  )  ;

The first parameter is the decimal to be converted, the second parameter is the number of decimal places and the third parameter is the separator for thousands/millions etc.

The easiest way is to use a dedicated CSV class like this:

$csv = new csv();
$csv->load_data(array(
    array('name'=>'John', 'age'=>35),
    array('name'=>'Adrian', 'age'=>23), 
    array('name'=>'William', 'age'=>57) 
));
$csv->send_file('age.csv'); 

I think you need to put it under src/main/resources and load it as follows:

props.load(new FileInputStream("src/main/resources/myconf.properties"));

The way you are trying to load it will first check in base folder of your project. If it is in target/classes and you want to load it from there do the following:

props.load(new FileInputStream("target/classes/myconf.properties"));

You must to wrap your following code into a block (Either method or static).

BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.println("What is your name?");
String name = in.readLine(); ;
System.out.println("Hello " + name);

Without a block you can only declare variables and more than that assign them a value in single statement.

For method main() will be best choice for now:

public class details {
    public static void main(String[] args){
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("What is your name?");
        String name = in.readLine(); ;
        System.out.println("Hello " + name);
    }
}

or If you want to use static block then...

public class details {
    static {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("What is your name?");
        String name = in.readLine(); ;
        System.out.println("Hello " + name);
    }
}

or if you want to build another method then..

public class details {
    public static void main(String[] args){
        myMethod();
    }
    private static void myMethod(){
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("What is your name?");
        String name = in.readLine(); ;
        System.out.println("Hello " + name);
    }
}

Also worry about exception due to BufferedReader .

Whenever I build applications that require such functionality, I always use the Windows Task Scheduler through a simple .NET library that I found.

Please see my answer to a similar question for some sample code and more explanation.

Native C/c++ Files libstdc++.* from your Ubuntu are x86 (or x86_64) binaries but Android devices and emulators are ARM. Of course, this will not work anyway, even if you'll set correct soname. This is very naive way which leads nowhere. Android has very limited support of C++ meaning there is no exceptions, standard C++ library (including STL) and RTTI. If you need such functionality, use my custom NDK distribution from

http://crystax.net/android/ndk.php - it support full C++ features listed above.

Why is there error: undefined reference to '__cxa_end_cleanup' link error. Android stlport

time. Because there is no link to libstdc + +. A. So wrong.

Because it uses some static library, it is necessary to link the full libstdc + +. A. Can

http://crystax.net/android/ndk.php here to download the package

sources \ cxx-stl \ gnu-libstdc + + \ libs \ armeabi directory.

Android on its own libstdc + + support is limited, it must be linked to a complete libstdc + +. A the job.

Add file in Android.mk LOCAL_LDFLAGS = $ (LOCAL_PATH) / libs / libcurl.a \

 $ (LOCAL_PATH) / libs / liblua.a \
 `$ (LOCAL_PATH) / libs / libstdc + +. A`  

And LOCAL_CPPFLAGS + =-lstdc + +-fexceptions can be compiled

For @angular/cli v6.2.1

The project configuration file angular.json is able to handle multiple projects (workspaces) which can be individually served.

ng config projects.my-test-project.targets.serve.options.port 4201

Where the my-test-project part is the project name what you set with the ng new command just like here:

$ ng new my-test-project
$ cd my-test-project
$ ng config projects.my-test-project.targets.serve.options.port 4201
$ ng serve
** Angular Live Development Server is listening on localhost:4201, open your browser on http://localhost:4201/ **

Legacy:

I usually use the ng set command to change the Angular CLI settings for project level.

ng set defaults.serve.port=4201

It changes change your .angular.cli.json and adds the port settings as it mentioned earlier.

After this change you can use simply ng serve and it going to use the prefered port without the need of specifying it every time.

Setup https://docs.djangoproject.com/en/dev/topics/logging/ and then these error's will echo where you point them. By default they tend to go off in the weeds so I always start off with a good logging setup before anything else.

Here is a really good example for a basic setup: https://ian.pizza/b/2013/04/16/getting-started-with-django-logging-in-5-minutes/

Edit: The new link is moved to: https://github.com/ianalexander/ianalexander/blob/master/content/blog/getting-started-with-django-logging-in-5-minutes.html

background: rgba(0,0,0,.5);

you can use rgba for opacity, will only work in ie9+ and better browsers

This is not a bug- you can only transition on ordinal/calculable properties (an easy way of thinking of this is any property with a numeric start and end number value..though there are a few exceptions).

This is because transitions work by calculating keyframes between two values, and producing an animation by extrapolating intermediate amounts.

visibility in this case is a binary setting (visible/hidden), so once the transition duration elapses, the property simply switches state, you see this as a delay- but it can actually be seen as the final keyframe of the transition animation, with the intermediary keyframes not having been calculated (what constitutes the values between hidden/visible? Opacity? Dimension? As it is not explicit, they are not calculated).

opacity is a value setting (0-1), so keyframes can be calculated across the duration provided.

A list of transitionable (animatable) properties can be found here

Use the abc module to create abstract classes. Use the abstractmethod decorator to declare a method abstract, and declare a class abstract using one of three ways, depending upon your Python version.

In Python 3.4 and above, you can inherit from ABC. In earlier versions of Python, you need to specify your class's metaclass as ABCMeta. Specifying the metaclass has different syntax in Python 3 and Python 2. The three possibilities are shown below:

# Python 3.4+
from abc import ABC, abstractmethod
class Abstract(ABC):
    @abstractmethod
    def foo(self):
        pass

# Python 3.0+
from abc import ABCMeta, abstractmethod
class Abstract(metaclass=ABCMeta):
    @abstractmethod
    def foo(self):
        pass

# Python 2
from abc import ABCMeta, abstractmethod
class Abstract:
    __metaclass__ = ABCMeta

    @abstractmethod
    def foo(self):
        pass

Whichever way you use, you won't be able to instantiate an abstract class that has abstract methods, but will be able to instantiate a subclass that provides concrete definitions of those methods:

>>> Abstract()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: Can't instantiate abstract class Abstract with abstract methods foo
>>> class StillAbstract(Abstract):
...     pass
... 
>>> StillAbstract()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: Can't instantiate abstract class StillAbstract with abstract methods foo
>>> class Concrete(Abstract):
...     def foo(self):
...         print('Hello, World')
... 
>>> Concrete()
<__main__.Concrete object at 0x7fc935d28898>

For checking one date is after another by using isAfter() method.

moment('2020-01-20').isAfter('2020-01-21'); // false
moment('2020-01-20').isAfter('2020-01-19'); // true

For checking one date is before another by using isBefore() method.

moment('2020-01-20').isBefore('2020-01-21'); // true
moment('2020-01-20').isBefore('2020-01-19'); // false

For checking one date is same as another by using isSame() method.

moment('2020-01-20').isSame('2020-01-21'); // false
moment('2020-01-20').isSame('2020-01-20'); // true

This is possible with window.localStorage or window.sessionStorage. The difference is that sessionStorage lasts for as long as the browser stays open, localStorage survives past browser restarts. The persistence applies to the entire web site not just a single page of it.

When you need to set a variable that should be reflected in the next page(s), use:

var someVarName = "value";
localStorage.setItem("someVarKey", someVarName);

And in any page (like when the page has loaded), get it like:

var someVarName = localStorage.getItem("someVarKey");

.getItem() will return null if no value stored, or the value stored.

Note that only string values can be stored in this storage, but this can be overcome by using JSON.stringify and JSON.parse. Technically, whenever you call .setItem(), it will call .toString() on the value and store that.

MDN's DOM storage guide (linked below), has workarounds/polyfills, that end up falling back to stuff like cookies, if localStorage isn't available.

It wouldn't be a bad idea to use an existing, or create your own mini library, that abstracts the ability to save any data type (like object literals, arrays, etc.).

References:

• Browser Storage - https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Storage
• localStorage - https://developer.mozilla.org/en-US/docs/DOM/Storage#localStorage
• JSON - https://developer.mozilla.org/en-US/docs/JSON
• Browser Storage compatibility - http://caniuse.com/namevalue-storage
• Storing objects - Storing Objects in HTML5 localStorage

To login without a password:

sudo -u user_name psql db_name

To reset the password if you have forgotten:

ALTER USER user_name WITH PASSWORD 'new_password';

It looks like you're using python 3.x. In python3, filter, map, zip, etc return an object which is iterable, but not a list. In other words,

filter(func,data) #python 2.x

is equivalent to:

list(filter(func,data)) #python 3.x

I think it was changed because you (often) want to do the filtering in a lazy sense -- You don't need to consume all of the memory to create a list up front, as long as the iterator returns the same thing a list would during iteration.

If you're familiar with list comprehensions and generator expressions, the above filter is now (almost) equivalent to the following in python3.x:

( x for x in data if func(x) ) 

As opposed to:

[ x for x in data if func(x) ]

in python 2.x

It is mostly used for importing symbols from / exporting symbols to a shared library (DLL). Both Visual C++ and GCC compilers support __declspec(dllimport) and __declspec(dllexport). Other uses (some Microsoft-only) are documented in the MSDN.

The most common causes are:
1. An incorrectly configured GOROOT
OR
2. GOPATH is not set

items in the first list where the Email does not exist in the second list.

from item1 in List1
where !(list2.Any(item2 => item2.Email == item1.Email))
select item1;

Your working tree is what is actually in the files that you are currently working on.

HEAD is a pointer to the branch or commit that you last checked out, and which will be the parent of a new commit if you make it. For instance, if you're on the master branch, then HEAD will point to master, and when you commit, that new commit will be a descendent of the revision that master pointed to, and master will be updated to point to the new commit.

The index is a staging area where the new commit is prepared. Essentially, the contents of the index are what will go into the new commit (though if you do git commit -a, this will automatically add all changes to files that Git knows about to the index before committing, so it will commit the current contents of your working tree). git add will add or update files from the working tree into your index.

getView() works only after onCreateView() completed, so invoke it from onPostCreate():

@Override
public void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    ImageView imageView = (ImageView) getView().findViewById(R.id.foo);
}

Here how you can print without using Data::Dumper

print "@{[%hash]}";

If you still like to use indentation, do it after opening the <?php tag, like so:

<textarea style="width:350px; height:80px;" cols="42" rows="5" name="sitelink"><?php // <--- newline
    if($siteLink_val) echo $siteLink_val; // <--- indented, newline
?></textarea>

Use MySQL's STR_TO_DATE() function to parse the string that you're attempting to insert:

INSERT INTO tblInquiry (fldInquiryReceivedDateTime) VALUES
  (STR_TO_DATE('5/15/2012 8:06:26 AM', '%c/%e/%Y %r'))

you can use ltrim or rtrim to clean whitespaces for the right or left or a string.

use absolute path where the image actually exists (e.g) '/home/artitra/pictures/filename.jpg'

or create static folder inside your project directory like this

| templates
   - static/
         - images/
              - yourimagename.jpg

then do this

app = Flask(__name__, static_url_path='/static')

then you can access your image like this in index.html

src ="/static/images/yourimage.jpg" 

in img tag

Handy one liner to parse a CSV file into an array

$csv = array_map('str_getcsv', file('data.csv'));

The BETWEEN operator is inclusive.

From Books Online:

BETWEEN returns TRUE if the value of test_expression is greater than or equal to the value of begin_expression and less than or equal to the value of end_expression.

DateTime Caveat

NB: With DateTimes you have to be careful; if only a date is given the value is taken as of midnight on that day; to avoid missing times within your end date, or repeating the capture of the following day's data at midnight in multiple ranges, your end date should be 3 milliseconds before midnight on of day following your to date. 3 milliseconds because any less than this and the value will be rounded up to midnight the next day.

e.g. to get all values within June 2016 you'd need to run:

where myDateTime between '20160601' and DATEADD(millisecond, -3, '20160701')

i.e.

where myDateTime between '20160601 00:00:00.000' and '20160630 23:59:59.997'

datetime2 and datetimeoffset

Subtracting 3 ms from a date will leave you vulnerable to missing rows from the 3 ms window. The correct solution is also the simplest one:

where myDateTime >= '20160601' AND myDateTime < '20160701'

You are trying to run a Python 2 codebase with Python 3. xrange() was renamed to range() in Python 3.

Run the game with Python 2 instead. Don't try to port it unless you know what you are doing, most likely there will be more problems beyond xrange() vs. range().

For the record, what you are seeing is not a syntax error but a runtime exception instead.

If you do know what your are doing and are actively making a Python 2 codebase compatible with Python 3, you can bridge the code by adding the global name to your module as an alias for range. (Take into account that you may have to update any existing range() use in the Python 2 codebase with list(range(...)) to ensure you still get a list object in Python 3):

try:
    # Python 2
    xrange
except NameError:
    # Python 3, xrange is now named range
    xrange = range

# Python 2 code that uses xrange(...) unchanged, and any
# range(...) replaced with list(range(...))

or replace all uses of xrange(...) with range(...) in the codebase and then use a different shim to make the Python 3 syntax compatible with Python 2:

try:
    # Python 2 forward compatibility
    range = xrange
except NameError:
    pass

# Python 2 code transformed from range(...) -> list(range(...)) and
# xrange(...) -> range(...).

The latter is preferable for codebases that want to aim to be Python 3 compatible only in the long run, it is easier to then just use Python 3 syntax whenever possible.

The mysqli_real_escape_string() function escapes special characters in a string for use in an SQL statement.

You can not post to Facebook walls automatically without creating an application and using the templated feed publisher as Frank pointed out.

The only thing you can do is use the 'share' widgets that they provide, which require user interaction.

I faced a similar situation, so i replaced all the external jar files(poi-bin-3.17-20170915) and make sure you add other jar files present in lib and ooxml-lib folders.

Hope this helps!!!:)

ALTER TABLE allitems
CHANGE itemid itemid INT(10) AUTO_INCREMENT;

Array to string conversion in latest versions of php 7.x is error, rather than notice, and prevents further code execution.

Using print, echo on array is not an option anymore.

Suppressing errors and notices is not a good practice, especially when in development environment and still debugging code.

Use var_dump,print_r, iterate through input value using foreach or for to output input data for names that are declared as input arrays ('name[]')

Most common practice to catch errors is using try/catch blocks, that helps us prevent interruption of code execution that might cause possible errors wrapped within try block.

  try{  //wrap around possible cause of error or notice
    
    if(!empty($_POST['C'])){
        echo $_POST['C'];
    }

  }catch(Exception $e){

    //handle the error message $e->getMessage();
  }

If you have a Decimal or similar numeric type, you can use:

Math.Round(myNumber, 2)

EDIT: So, in your case, it would be:

Public Class Form1
  Private Sub btncalc_Click(ByVal sender As System.Object,
                            ByVal e As System.EventArgs) Handles btncalc.Click
    txtA.Text = Math.Round((Val(txtD.Text) / Val(txtC.Text) * Val(txtF.Text) / Val(txtE.Text)), 2)
    txtB.Text = Math.Round((Val(txtA.Text) * 1000 / Val(txtG.Text)), 2)
  End Sub
End Class

boolean containsWhitespace = false;
for (int i = 0; i < text.length() && !containsWhitespace; i++) {
    if (Character.isWhitespace(text.charAt(i)) {
        containsWhitespace = true;
    }
}
return containsWhitespace;

or, using Guava,

boolean containsWhitespace = CharMatcher.WHITESPACE.matchesAnyOf(text);

objdump + gdb minimal runnable example

TL;DR:

• GDB can be used to find failing line, previously mentioned at: How do I analyze a program's core dump file with GDB when it has command-line parameters?
• the core file contains the CLI arguments, no need to pass them again
• objdump -s core can be used to dump memory in bulk

Now for the full educational test setup:

main.c

#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int myfunc(int i) {
    *(int*)(NULL) = i; /* line 7 */
    return i - 1;
}

int main(int argc, char **argv) {
    /* Setup some memory. */
    char data_ptr[] = "string in data segment";
    char *mmap_ptr;
    char *text_ptr = "string in text segment";
    (void)argv;
    mmap_ptr = (char *)malloc(sizeof(data_ptr) + 1);
    strcpy(mmap_ptr, data_ptr);
    mmap_ptr[10] = 'm';
    mmap_ptr[11] = 'm';
    mmap_ptr[12] = 'a';
    mmap_ptr[13] = 'p';
    printf("text addr: %p\n", text_ptr);
    printf("data addr: %p\n", data_ptr);
    printf("mmap addr: %p\n", mmap_ptr);

    /* Call a function to prepare a stack trace. */
    return myfunc(argc);
}

Compile, and run to generate core:

gcc -ggdb3 -std=c99 -Wall -Wextra -pedantic -o main.out main.c
ulimit -c unlimited
rm -f core
./main.out

Output:

text addr: 0x4007d4
data addr: 0x7ffec6739220
mmap addr: 0x1612010
Segmentation fault (core dumped)

GDB points us to the exact line where the segmentation fault happened, which is what most users want while debugging:

gdb -q -nh main.out core

then:

Reading symbols from main.out...done.
[New LWP 27479]
Core was generated by `./main.out'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000000000400635 in myfunc (i=1) at main.c:7
7           *(int*)(NULL) = i;
(gdb) bt
#0  0x0000000000400635 in myfunc (i=1) at main.c:7
#1  0x000000000040072b in main (argc=1, argv=0x7ffec6739328) at main.c:28

which points us directly to the buggy line 7.

CLI arguments are stored in the core file and don't need to be passed again

To answer the specific CLI argument questions, we see that if we change the cli arguments e.g. with:

rm -f core
./main.out 1 2

then this does get reflected in the previous bactrace without any changes in our commands:

Reading symbols from main.out...done.
[New LWP 21838]
Core was generated by `./main.out 1 2'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000564583cf2759 in myfunc (i=3) at main.c:7
7           *(int*)(NULL) = i; /* line 7 */
(gdb) bt
#0  0x0000564583cf2759 in myfunc (i=3) at main.c:7
#1  0x0000564583cf2858 in main (argc=3, argv=0x7ffcca4effa8) at main.c:2

So note how now argc=3. Therefore this must mean that the core file stores that information. I'm guessing it just stores it as the arguments of main, just like it stores the arguments of any other functions.

This makes sense if you consider that the core dump must be storing the entire memory and register state of the program, and so it has all the information needed to determine the value of function arguments on the current stack.

Less obvious is how to inspect the environment variables: How to get environment variable from a core dump Environment variables are also present in memory so the objdump does contain that information, but I'm not sure how to list all of them in one go conveniently, one by one as follows did work on my tests though:

p __environ[0]

Binutils analysis

By using binutils tools like readelf and objdump, we can bulk dump information contained in the core file such as the memory state.

Most/all of it must also be visible through GDB, but those binutils tools offer a more bulk approach which is convenient for certain use cases, while GDB is more convenient for a more interactive exploration.

First:

file core

tells us that the core file is actually an ELF file:

core: ELF 64-bit LSB core file x86-64, version 1 (SYSV), SVR4-style, from './main.out'

which is why we are able to inspect it more directly with usual binutils tools.

A quick look at the ELF standard shows that there is actually an ELF type dedicated to it:

Elf32_Ehd.e_type == ET_CORE

Further format information can be found at:

man 5 core

Then:

readelf -Wa core

gives some hints about the file structure. Memory appears to be contained in regular program headers:

Program Headers:
  Type           Offset   VirtAddr           PhysAddr           FileSiz  MemSiz   Flg Align
  NOTE           0x000468 0x0000000000000000 0x0000000000000000 0x000b9c 0x000000     0
  LOAD           0x002000 0x0000000000400000 0x0000000000000000 0x001000 0x001000 R E 0x1000
  LOAD           0x003000 0x0000000000600000 0x0000000000000000 0x001000 0x001000 R   0x1000
  LOAD           0x004000 0x0000000000601000 0x0000000000000000 0x001000 0x001000 RW  0x1000

and there is some more metadata present in a notes area, notably prstatus contains the PC:

Displaying notes found at file offset 0x00000468 with length 0x00000b9c:
  Owner                 Data size       Description
  CORE                 0x00000150       NT_PRSTATUS (prstatus structure)
  CORE                 0x00000088       NT_PRPSINFO (prpsinfo structure)
  CORE                 0x00000080       NT_SIGINFO (siginfo_t data)
  CORE                 0x00000130       NT_AUXV (auxiliary vector)
  CORE                 0x00000246       NT_FILE (mapped files)
    Page size: 4096
                 Start                 End         Page Offset
    0x0000000000400000  0x0000000000401000  0x0000000000000000
        /home/ciro/test/main.out
    0x0000000000600000  0x0000000000601000  0x0000000000000000
        /home/ciro/test/main.out
    0x0000000000601000  0x0000000000602000  0x0000000000000001
        /home/ciro/test/main.out
    0x00007f8d939ee000  0x00007f8d93bae000  0x0000000000000000
        /lib/x86_64-linux-gnu/libc-2.23.so
    0x00007f8d93bae000  0x00007f8d93dae000  0x00000000000001c0
        /lib/x86_64-linux-gnu/libc-2.23.so
    0x00007f8d93dae000  0x00007f8d93db2000  0x00000000000001c0
        /lib/x86_64-linux-gnu/libc-2.23.so
    0x00007f8d93db2000  0x00007f8d93db4000  0x00000000000001c4
        /lib/x86_64-linux-gnu/libc-2.23.so
    0x00007f8d93db8000  0x00007f8d93dde000  0x0000000000000000
        /lib/x86_64-linux-gnu/ld-2.23.so
    0x00007f8d93fdd000  0x00007f8d93fde000  0x0000000000000025
        /lib/x86_64-linux-gnu/ld-2.23.so
    0x00007f8d93fde000  0x00007f8d93fdf000  0x0000000000000026
        /lib/x86_64-linux-gnu/ld-2.23.so
  CORE                 0x00000200       NT_FPREGSET (floating point registers)
  LINUX                0x00000340       NT_X86_XSTATE (x86 XSAVE extended state)

objdump can easily dump all memory with:

objdump -s core

which contains:

Contents of section load1:

 4007d0 01000200 73747269 6e672069 6e207465  ....string in te
 4007e0 78742073 65676d65 6e740074 65787420  xt segment.text 

Contents of section load15:

 7ffec6739220 73747269 6e672069 6e206461 74612073  string in data s
 7ffec6739230 65676d65 6e740000 00a8677b 9c6778cd  egment....g{.gx.

Contents of section load4:

 1612010 73747269 6e672069 6e206d6d 61702073  string in mmap s
 1612020 65676d65 6e740000 11040000 00000000  egment..........

which matches exactly with the stdout value in our run.

This was tested on Ubuntu 16.04 amd64, GCC 6.4.0, and binutils 2.26.1.

Q1:Could the time it takes for a transaction to execute make the associated process more likely to be flagged as a deadlock victim.

No. The SELECT is the victim because it had only read data, therefore the transaction has a lower cost associated with it so is chosen as the victim:

By default, the Database Engine chooses as the deadlock victim the session running the transaction that is least expensive to roll back. Alternatively, a user can specify the priority of sessions in a deadlock situation using the SET DEADLOCK_PRIORITY statement. DEADLOCK_PRIORITY can be set to LOW, NORMAL, or HIGH, or alternatively can be set to any integer value in the range (-10 to 10).

Q2. If I execute the select with a NOLOCK hint, will this remove the problem?

No. For several reasons:

• you should first try to eliminate the deadlock properly, by investigating the root cause
• dirty reads are inconsistent reads.
• the proper way to specify dirty reads is to use transaction isolation levels
• there is a much better solution: read committed snapshot.

Q3. I suspect that a datetime field that is checked as part of the WHERE clause in the select statement is causing the slow lookup time. Can I create an index based on this field? Is it advisable?

Probably. The cause of the deadlock is almost very likely to be a poorly indexed database.10 minutes queries are acceptable in such narrow conditions, that I'm 100% certain in your case is not acceptable.

With 99% confidence I declare that your deadlock is cased by a large table scan conflicting with updates. Start by capturing the deadlock graph to analyze the cause. You will very likely have to optimize the schema of your database. Before you do any modification, read this topic Designing Indexes and the sub-articles.

Javascript is single-threaded, so by nature there should not be a sleep function because sleeping will block the thread. setTimeout is a way to get around this by posting an event to the queue to be executed later without blocking the thread. But if you want a true sleep function, you can write something like this:

function sleep(miliseconds) {
   var currentTime = new Date().getTime();

   while (currentTime + miliseconds >= new Date().getTime()) {
   }
}

Note: The above code is NOT recommended.

#!/usr/bin/python
# -*- coding: utf-8 -*-
# Works on python 3 and python 2.
# when server knows where the request is coming from.

import sys

if sys.version_info[0] == 3:
    from urllib.request import urlopen
else:
    from urllib import urlopen
with urlopen('https://www.facebook.com/') as \
    url:
    data = url.read()

print data

# When the server does not know where the request is coming from.
# Works on python 3.

import urllib.request

user_agent = \
    'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7'

url = 'https://www.facebook.com/'
headers = {'User-Agent': user_agent}

request = urllib.request.Request(url, None, headers)
response = urllib.request.urlopen(request)
data = response.read()
print data

I realize this is an old question, but its also a top Google result in searching for a solution to a very similar problem I have, which is the desire to implement arbitrary integer to hex string conversions within a template class. My end goal was actually a Gtk::Entry subclass template that would allow editing various integer widths in hex, but that's beside the point.

This combines the unary operator+ trick with std::make_unsigned from <type_traits> to prevent the problem of sign-extending negative int8_t or signed char values that occurs in this answer

Anyway, I believe this is more succinct than any other generic solution. It should work for any signed or unsigned integer types, and throws a compile-time error if you attempt to instantiate the function with any non-integer types.

template < 
  typename T,
  typename = typename std::enable_if<std::is_integral<T>::value, T>::type
>
std::string toHexString(const T v)
{ 
  std::ostringstream oss;
  oss << std::hex << +((typename std::make_unsigned<T>::type)v);
  return oss.str();
}

Some example usage:

int main(int argc, char**argv)
{
  int16_t val;
  // Prints 'ff' instead of "ffffffff". Unlike the other answer using the '+'
  // operator to extend sizeof(char) int types to int/unsigned int
  std::cout << toHexString(int8_t(-1)) << std::endl;

  // Works with any integer type
  std::cout << toHexString(int16_t(0xCAFE)) << std::endl;

  // You can use setw and setfill with strings too -OR- 
  // the toHexString could easily have parameters added to do that.
  std::cout << std::setw(8) << std::setfill('0') << 
    toHexString(int(100)) << std::endl;
  return 0;
}

Update: Alternatively, if you don't like the idea of the ostringstream being used, you can combine the templating and unary operator trick with the accepted answer's struct-based solution for the following. Note that here, I modified the template by removing the check for integer types. The make_unsigned usage might be enough for compile time type safety guarantees.

template <typename T>
struct HexValue 
{
  T value;
  HexValue(T _v) : value(_v) { }
};

template <typename T>
inline std::ostream& operator<<(std::ostream& o, const HexValue<T>& hs)
{
  return o << std::hex << +((typename std::make_unsigned<T>::type) hs.value);
}

template <typename T>
const HexValue<T> toHex(const T val)
{
  return HexValue<T>(val);
}

// Usage:
std::cout << toHex(int8_t(-1)) << std::endl;

In case of github Repositories (or any none-self-signed certs), choosing below while installing Git-on-windows, resolved the issue.

Use this lightweight npm package: system-commands

Look at it here.

Import it like this:

const system = require('system-commands')

Run commands like this:

system('ls').then(output => {
    console.log(output)
}).catch(error => {
    console.error(error)
})

$(document).ready(function() {
    $('#abc_frame').attr('src',url);
})

Here is one command that displays the number of threads of a given process :

ps -L -o pid= -p <pid> | wc -l

Unlike the other ps based answers, there is here no need to substract 1 from its output as there is no ps header line thanks to the -o pid=option.

In JSP, you'd normally like to use JSTL <fmt:formatDate> for this. You can of course also throw in a scriptlet with SimpleDateFormat, but scriptlets are strongly discouraged since 2003.

Assuming that ${bean.date} returns java.util.Date, here's how you can use it:

<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
...
<fmt:formatDate value="${bean.date}" pattern="yyyy-MM-dd HH:mm:ss" />

If you're actually using a java.util.Calendar, then you can invoke its getTime() method to get a java.util.Date out of it that <fmt:formatDate> accepts:

<fmt:formatDate value="${bean.calendar.time}" pattern="yyyy-MM-dd HH:mm:ss" />

Or, if you're actually holding the date in a java.lang.String (this indicates a serious design mistake in the model; you should really fix your model to store dates as java.util.Date instead of as java.lang.String!), here's how you can convert from one date string format e.g. MM/dd/yyyy to another date string format e.g. yyyy-MM-dd with help of JSTL <fmt:parseDate>.

<fmt:parseDate pattern="MM/dd/yyyy" value="${bean.dateString}" var="parsedDate" />
<fmt:formatDate value="${parsedDate}" pattern="yyyy-MM-dd" />

You can use scrollViewDidEndDecelerating: for this

//@property (strong, nonatomic) IBOutlet UICollectionView *collectionView;

   - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{

        for (UICollectionViewCell *cell in [self.collectionView visibleCells]) {
            NSIndexPath *indexPath = [self.collectionView indexPathForCell:cell];
            NSUInteger lastIndex = [indexPath indexAtPosition:[indexPath length] - 1];
            NSLog(@"visible cell value %d",lastIndex);
        }

    }

There's a BeyondCompare plugin as well. It opens the 2 files in a BeyondCompare window. Pretty convenient to open files from the sublime window.

You will need BC3 installation present in the system. After installing the plugin, you will have to provide the path to the installation.

Example:

{
    //Define a custom path to beyond compare
    "beyond_compare_path": "G:/Softwares/Beyond Compare 3/BCompare.exe"
}

Since the google policies update, you need to enable billing to access Map API.

You can style it by the following way:

echo "<p style='color:red;'>" . $ip['cityName'] . "</p>";
echo "<p style='color:red;'>" . $ip['countryName'] . "</p>";

Try with an API lvl 28 emulator (Android 9). I was trying with api lvl 29 and kept getting errors.

• Open Hyper-V Manager
• Create a new internal virtual switch (e.g. "Internal Network Connection")
• Go to your Virtual Machine and create a new Network Adapter -> choose "Internal Network Connection" as virtual switch
• Start the VM
• Assign both your host as well as guest an IP address as well as a Subnet mask (IP4, e.g. 192.168.1.1 (host) / 192.168.1.2 (guest) and 255.255.255.0)
• Open cmd both on host and guest and check via "ping" if host and guest can reach each other (if this does not work disable/enable the network adapter via the network settings in the control panel, restart...)
• If successfull create a folder in the VM (e.g. "VMShare"), right-click on it -> Properties -> Sharing -> Advanced Sharing -> checkmark "Share this folder" -> Permissions -> Allow "Full Control" -> Apply
• Now you should be able to reach the folder via the host -> to do so: open Windows Explorer -> enter the path to the guest (\192.168.1.xx...) in the address line -> enter the credentials of the guest (Choose "Other User" - it can be necessary to change the domain therefore enter ".\"[username] and [password])

There is also an easy way for copying via the clipboard:

• If you start your VM and go to "View" you can enable "Enhanced Session". If you do it is not possible to drag and drop but to copy and paste.

Enhanced Session

As far as I can see, you just added heredoc by mistake
No need to use ugly heredoc syntax here.
Just remove it and everything will work:

<p>Hello</p>
<p><?= _("World"); ?></p>

Android Studio 3.5.3

I use this for my libraries and projects and it covers most of the files that generate by android studio and other famous tools:

# Built application files
*.apk
*.ap_
*.aab

# Files for the ART/Dalvik VM
*.dex

# Generated files
bin/
gen/
out/
app/release/

# Gradle files
.gradle/
build/

# Local configuration file (sdk path, etc)
local.properties

# Log Files
*.log

# Android Studio Navigation editor temp files
.navigation/

# Android Studio captures folder
captures/

# IntelliJ
*.iml
.idea/workspace.xml
.idea/tasks.xml
.idea/gradle.xml
.idea/assetWizardSettings.xml
.idea/dictionaries
.idea/libraries
.idea/caches

# Keystore files
# Uncomment the following lines if you do not want to check your keystore files in.
#*.jks
#*.keystore

# External native build folder generated in Android Studio 2.2 and later
.externalNativeBuild

# Freeline
freeline.py
freeline/
freeline_project_description.json

# fastlane
fastlane/report.xml
fastlane/Preview.html
fastlane/screenshots
fastlane/test_output
fastlane/readme.md

#NDK
*.so