Here is a version of @adabyron's answer that prevents the leaky EventArgs abstraction.

First, the modified EventToCommandBehavior class (now a generic abstract class and formatted with ReSharper code cleanup). Note the new GetCommandParameter virtual method and its default implementation:

public abstract class EventToCommandBehavior<TEventArgs> : Behavior<FrameworkElement>
    where TEventArgs : EventArgs
{
    public static readonly DependencyProperty EventProperty = DependencyProperty.Register("Event", typeof(string), typeof(EventToCommandBehavior<TEventArgs>), new PropertyMetadata(null, OnEventChanged));
    public static readonly DependencyProperty CommandProperty = DependencyProperty.Register("Command", typeof(ICommand), typeof(EventToCommandBehavior<TEventArgs>), new PropertyMetadata(null));
    public static readonly DependencyProperty PassArgumentsProperty = DependencyProperty.Register("PassArguments", typeof(bool), typeof(EventToCommandBehavior<TEventArgs>), new PropertyMetadata(false));
    private Delegate _handler;
    private EventInfo _oldEvent;

    public string Event
    {
        get { return (string)GetValue(EventProperty); }
        set { SetValue(EventProperty, value); }
    }

    public ICommand Command
    {
        get { return (ICommand)GetValue(CommandProperty); }
        set { SetValue(CommandProperty, value); }
    }

    public bool PassArguments
    {
        get { return (bool)GetValue(PassArgumentsProperty); }
        set { SetValue(PassArgumentsProperty, value); }
    }

    protected override void OnAttached()
    {
        AttachHandler(Event);
    }

    protected virtual object GetCommandParameter(TEventArgs e)
    {
        return e;
    }

    private void AttachHandler(string eventName)
    {
        _oldEvent?.RemoveEventHandler(AssociatedObject, _handler);

        if (string.IsNullOrEmpty(eventName))
        {
            return;
        }

        EventInfo eventInfo = AssociatedObject.GetType().GetEvent(eventName);

        if (eventInfo != null)
        {
            MethodInfo methodInfo = typeof(EventToCommandBehavior<TEventArgs>).GetMethod("ExecuteCommand", BindingFlags.Instance | BindingFlags.NonPublic);

            _handler = Delegate.CreateDelegate(eventInfo.EventHandlerType, this, methodInfo);
            eventInfo.AddEventHandler(AssociatedObject, _handler);
            _oldEvent = eventInfo;
        }
        else
        {
            throw new ArgumentException($"The event '{eventName}' was not found on type '{AssociatedObject.GetType().FullName}'.");
        }
    }

    private static void OnEventChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
    {
        var behavior = (EventToCommandBehavior<TEventArgs>)d;

        if (behavior.AssociatedObject != null)
        {
            behavior.AttachHandler((string)e.NewValue);
        }
    }

    // ReSharper disable once UnusedMember.Local
    // ReSharper disable once UnusedParameter.Local
    private void ExecuteCommand(object sender, TEventArgs e)
    {
        object parameter = PassArguments ? GetCommandParameter(e) : null;

        if (Command?.CanExecute(parameter) == true)
        {
            Command.Execute(parameter);
        }
    }
}

Next, an example derived class that hides DragCompletedEventArgs. Some people expressed concern about leaking the EventArgs abstraction into their view model assembly. To prevent this, I created an interface that represents the values we care about. The interface can live in the view model assembly with the private implementation in the UI assembly:

// UI assembly
public class DragCompletedBehavior : EventToCommandBehavior<DragCompletedEventArgs>
{
    protected override object GetCommandParameter(DragCompletedEventArgs e)
    {
        return new DragCompletedArgs(e);
    }

    private class DragCompletedArgs : IDragCompletedArgs
    {
        public DragCompletedArgs(DragCompletedEventArgs e)
        {
            Canceled = e.Canceled;
            HorizontalChange = e.HorizontalChange;
            VerticalChange = e.VerticalChange;
        }

        public bool Canceled { get; }
        public double HorizontalChange { get; }
        public double VerticalChange { get; }
    }
}

// View model assembly
public interface IDragCompletedArgs
{
    bool Canceled { get; }
    double HorizontalChange { get; }
    double VerticalChange { get; }
}

Cast the command parameter to IDragCompletedArgs, similar to @adabyron's answer.

My answer is just a flavor of the same. But I tested it with serializing a zipped content and it worked. So I can trust this solution unlike the one offered first (that use readLine) because it will ignore line breaks and corrupt the input.

/*********************************************************************************************
 * From CLOB to String
 * @return string representation of clob
 *********************************************************************************************/
private String clobToString(java.sql.Clob data)
{
    final StringBuilder sb = new StringBuilder();

    try
    {
        final Reader         reader = data.getCharacterStream();
        final BufferedReader br     = new BufferedReader(reader);

        int b;
        while(-1 != (b = br.read()))
        {
            sb.append((char)b);
        }

        br.close();
    }
    catch (SQLException e)
    {
        log.error("SQL. Could not convert CLOB to string",e);
        return e.toString();
    }
    catch (IOException e)
    {
        log.error("IO. Could not convert CLOB to string",e);
        return e.toString();
    }

    return sb.toString();
}

You have to change the values in the CATALINA_OPTS option defined in the Tomcat Catalina start file. To increase the PermGen memory change the value of the MaxPermSize variable, otherwise change the value of the Xmx variable.

Linux & Mac OS: Open or create setenv.sh file placed in the "bin" directory. You have to apply the changes to this line:

export CATALINA_OPTS="$CATALINA_OPTS -server -Xms256m -Xmx1024m -XX:PermSize=512m -XX:MaxPermSize=512m"

Windows:

Open or create the setenv.bat file placed in the "bin" directory:

set CATALINA_OPTS=-server -Xms256m -Xmx1024m -XX:PermSize=512m -XX:MaxPermSize=512m

Try this to get all the form fields.

var fields = document['formName'].elements;

The print function in python adds itself \n

You could use

import sys
sys.stdout.write(a)

instead

After reading several suggestions here and combining the ideas, for me following changes in /etc/ImageMagick-6/policy.xml were necessary:

<policy domain="coder" rights="read|write" pattern="PDF" />

... rights="none" did not help. ...pattern="LABEL" was not neccessary. Although I do not work with big png files (only ~1 Mb) some changes in memory limits were also necessary:

<policy domain="resource" name="memory" value="2GiB"/>

(instead of 256Mib), and

<policy domain="resource" name="area" value="2GB"/>

(instead of 128 MB)

While the accepted answer is right that you can inject Math to use it in angular, for this particular problem, the more conventional/angular way is the number filter:

<p>The percentage is {{(100*count/total)| number:0}}%</p>

You can read more about the number filter here: http://docs.angularjs.org/api/ng/filter/number

use jquery for that:

$("#divId").html()

Instead of mocking concrete class you should mock that class interface. Extract interface from XmlCupboardAccess class

public interface IXmlCupboardAccess
{
    bool IsDataEntityInXmlCupboard(string dataId, out string nameInCupboard, out string refTypeInCupboard, string nameTemplate = null);
}

And instead of

private Mock<XmlCupboardAccess> _xmlCupboardAccess = new Mock<XmlCupboardAccess>();

change to

private Mock<IXmlCupboardAccess> _xmlCupboardAccess = new Mock<IXmlCupboardAccess>();

27 is the code for the escape key. :)

Here's the LLVM header.

// -*- C++ -*-
//===--------------------------- __nullptr --------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP_NULLPTR
#define _LIBCPP_NULLPTR

#include <__config>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif

#ifdef _LIBCPP_HAS_NO_NULLPTR

_LIBCPP_BEGIN_NAMESPACE_STD

struct _LIBCPP_TEMPLATE_VIS nullptr_t
{
    void* __lx;

    struct __nat {int __for_bool_;};

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR nullptr_t() : __lx(0) {}
    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR nullptr_t(int __nat::*) : __lx(0) {}

    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR operator int __nat::*() const {return 0;}

    template <class _Tp>
        _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
        operator _Tp* () const {return 0;}

    template <class _Tp, class _Up>
        _LIBCPP_INLINE_VISIBILITY
        operator _Tp _Up::* () const {return 0;}

    friend _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR bool operator==(nullptr_t, nullptr_t) {return true;}
    friend _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR bool operator!=(nullptr_t, nullptr_t) {return false;}
};

inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR nullptr_t __get_nullptr_t() {return nullptr_t(0);}

#define nullptr _VSTD::__get_nullptr_t()

_LIBCPP_END_NAMESPACE_STD

#else  // _LIBCPP_HAS_NO_NULLPTR

namespace std
{
    typedef decltype(nullptr) nullptr_t;
}

#endif  // _LIBCPP_HAS_NO_NULLPTR

#endif  // _LIBCPP_NULLPTR

(a great deal can be uncovered with a quick grep -r /usr/include/*`)

One thing that jumps out is the operator * overload (returning 0 is a lot friendlier than segfaulting...). Another thing is it doesn't look compatible with storing an address at all. Which, compared to how it goes slinging void*'s and passing NULL results to normal pointers as sentinel values, would obviously reduce the "never forget, it might be a bomb" factor.

I found it is better to use the command Serial.readString() to replace the Serial.read() to obtain the continuous I/O for Arduino.

They can be in separate containers, and indeed, if the application was also intended to run in a larger environment, they probably would be.

A multi-container system would require some more orchestration to be able to bring up all the required dependencies, though in Docker v0.6.5+, there is a new facility to help with that built into Docker itself - Linking. With a multi-machine solution, its still something that has to be arranged from outside the Docker environment however.

With two different containers, the two parts still communicate over TCP/IP, but unless the ports have been locked down specifically (not recommended, as you'd be unable to run more than one copy), you would have to pass the new port that the database has been exposed as to the application, so that it could communicate with Mongo. This is again, something that Linking can help with.

For a simpler, small installation, where all the dependencies are going in the same container, having both the database and Python runtime started by the program that is initially called as the ENTRYPOINT is also possible. This can be as simple as a shell script, or some other process controller - Supervisord is quite popular, and a number of examples exist in the public Dockerfiles.

As a variant

delete array[array.indexOf(item)];

If you know nothing about delete operator, DON'T use this.

You have to drop the foreign key. Foreign keys in MySQL automatically create an index on the table (There was a SO Question on the topic).

ALTER TABLE mytable DROP FOREIGN KEY mytable_ibfk_1 ; 

/*my beginner-nooby solution for numbers 1-999 :)*/
function convert(num) {
    var RomNumDig = [['','I','II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX'],['X','XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC'], ['C','CC','CCC','CD','D','DC','DCC','DCCC','CM']];
    var lastDig = num%10;
    var ourNumb1 = RomNumDig[0][lastDig]||'';
    if(num>=10) {
        var decNum = (num - lastDig)/10;
        if(decNum>9)decNum%=10; 
    var ourNumb2 = RomNumDig[1][decNum-1]||'';} 
    if(num>=100) {
        var hundNum = ((num-num%100)/100);
        var ourNumb3 = RomNumDig[2][hundNum-1]||'';}
return ourNumb3+ourNumb2+ourNumb1;
}
console.log(convert(950));//CML

/*2nd my beginner-nooby solution for numbers 1-10, but it can be easy transformed for larger numbers :)*/
function convert(num) {
  var ourNumb = '';
  var romNumDig = ['I','IV','V','IX','X'];
  var decNum = [1,4,5,9,10];
  for (var i=decNum.length-1; i>0; i--) {
    while(num>=decNum[i]) {
        ourNumb += romNumDig[i];
        num -= decNum[i];
    }
  }
  return ourNumb;
}
console.log(convert(9));//IX

You have to close that application first. There is no way to delete it, if it's used by some application.

UnLock IT is a neat utility that helps you to take control of any file or folder when it is locked by some application or system. For every locked resource, you get a list of locking processes and can unlock it by terminating those processes. EMCO Unlock IT offers Windows Explorer integration that allows unlocking files and folders by one click in the context menu.

There's also Unlocker (not recommended, see Warning below), which is a free tool which helps locate any file locking handles running, and give you the option to turn it off. Then you can go ahead and do anything you want with those files.

Warning: The installer includes a lot of undesirable stuff. You're almost certainly better off with UnLock IT.

If the jdk.tools is present in the .m2 repository. Still you get the error something like this:

missing artifact: jdk.tools.....c:.../jre/..

In the buildpath->configure build path-->Libraries.Just change JRE system library from JRE to JDK.

If you have more than one column to be converted you can do the following:

df[["col1", "col2", "col3"]] = df[["col1", "col2", "col3"]].apply(pd.to_datetime)

If you are using Visual Studio, you can also left-click on the project in Solution Explorer and change the Windows Authentication property to Enabled in the Properties window.

You can run specific test class(es) and method(s) using the following syntax:

1. full package : mvn test -Dtest="com.oracle.tests.**"

2. all method in a class : mvn test -Dtest=CLASS_NAME1

3. single method from single class :mvn test -Dtest=CLASS_NAME1#METHOD_NAME1

4. multiple method from multiple class : mvn test -Dtest=CLASS_NAME1#METHOD_NAME1,CLASS_NAME2#METHOD_NAME2

var audioURL = window.URL.createObjectURL(blob);
audio.src = audioURL;

var reader = new window.FileReader();
reader.readAsDataURL(blob);
reader.onloadend = function () {
     base64data = reader.result;
     console.log(base64data);
}

You can do in this way:

    Integer i = 1;
    new BigInteger("" + i);

I simply solve this problem like this, which should work in all browsers:

ul li {
  color: red
}

ul li span {
  color: blue;
}

<ul>
  <li><span>Foo</span></li>
  <li><span>Bar</span></li>
  <li><span>Bat</span></li>
</ul>

Using f-strings, in Python 3.6+.

from datetime import datetime

date_string = f'{datetime.now():%Y-%m-%d %H:%M:%S%z}'

{{ date('d F Y',strtotime($a->dates)) }}

alternative use laravel

\Carbon\Carbon::parse($a->dates)->format('d F Y') }}

strikes  = [number_map[int(x)] for x in input_str.split()]

Use square brackets to explore dictionaries.

tooltips: {
            enabled: true,
                  mode: 'single',
                  callbacks: {
                    label: function(tooltipItems, data) { 
                      return data.datasets[tooltipItems.datasetIndex].label+": "+tooltipItems.yLabel;
                    }
                  }
                }

This works for both git log and gitk - the 2 most common ways of viewing history.
You don't need to use the whole name:

git log --author="Jon"

will match a commit made by "Jonathan Smith"

git log --author=Jon

and

git log --author=Smith

would also work. The quotes are optional if you don't need any spaces.

Add --all if you intend to search all branches and not just the current commit's ancestors in your repo.

You can also easily match on multiple authors as regex is the underlying mechanism for this filter. So to list commits by Jonathan or Adam, you can do this:

git log --author="\(Adam\)\|\(Jon\)"

In order to exclude commits by a particular author or set of authors using regular expressions as noted in this question, you can use a negative lookahead in combination with the --perl-regexp switch:

git log --author='^(?!Adam|Jon).*$' --perl-regexp

Alternatively, you can exclude commits authored by Adam by using bash and piping:

git log --format='%H %an' | 
  grep -v Adam | 
  cut -d ' ' -f1 | 
  xargs -n1 git log -1

If you want to exclude commits commited (but not necessarily authored) by Adam, replace %an with %cn. More details about this are in my blog post here: http://dymitruk.com/blog/2012/07/18/filtering-by-author-name/

To make your formula more readable, you could assign a Name to cell A0, and then use that name in the formula.

The easiest way to define a Name is to highlight the cell or range, then click on the Name box in the formula bar.

Then, if you named A0 "Rate" you can use that name like this:

=(B0+4)/(Rate)

See, much easier to read.

If you want to find Rate, click F5 and it appears in the GoTo list.

Your syntax is incorrect.

card_value = $(array[i]).val(); or card_value = array[i].value;

array[i] is not a jQuery object (for some reason).

Checking your browser's console can be helpful for things like this.

I think that your problem is in the location of the image. You shall place it in your source, and then use it like this:

  JButton button = new JButton();
  try {
    Image img = ImageIO.read(getClass().getResource("resources/water.bmp"));
    button.setIcon(new ImageIcon(img));
  } catch (Exception ex) {
    System.out.println(ex);
  }

In this example, it is assumed that image is in src/resources/ folder.

Simplification of @Daira Hopwood method good for picking one single commit. Need no temporary branches.

In the case of the author:

• Z is wanted commit (fd9f578)
• Y is commit before it
• X current working branch

then do:

git checkout Z   # move HEAD to wanted commit
git reset Y      # have Z as changes in working tree
git stash        # save Z in stash
git checkout X   # return to working branch
git stash pop    # apply Z to current branch
git commit -a    # do commit

Use position:fixed; and set the top:0;left:0;right:0;height:100px; and you should be able to have it "stick" to the top of the page.

<div style="position:fixed;top:0;left:0;right:0;height:100px;">Some buttons</div>

You can use Enumeration:

Hashtable<Integer, String> table = ...

Enumeration<Integer> enumKey = table.keys();
while(enumKey.hasMoreElements()) {
    Integer key = enumKey.nextElement();
    String val = table.get(key);
    if(key==0 && val.equals("0"))
        table.remove(key);
}

The question is answered already, but I want add more information about the causes.

Android app unable to start activity componentinfo

This error often comes with appropriate logs. You can read logs and can solve this issue easily.

Here is a sample log. In which you can see clearly ClassCastException. So this issue came because TextView cannot be cast to EditText.

Caused by: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText

11-04 01:24:10.403: D/AndroidRuntime(1050): Shutting down VM
11-04 01:24:10.403: W/dalvikvm(1050): threadid=1: thread exiting with uncaught exception (group=0x41465700)
11-04 01:24:10.543: E/AndroidRuntime(1050): FATAL EXCEPTION: main
11-04 01:24:10.543: E/AndroidRuntime(1050): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.troysantry.tipcalculator/com.troysantry.tipcalculator.TipCalc}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 01:24:10.543: E/AndroidRuntime(1050):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at android.app.ActivityThread.access$600(ActivityThread.java:141)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at android.os.Handler.dispatchMessage(Handler.java:99)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at android.os.Looper.loop(Looper.java:137)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at android.app.ActivityThread.main(ActivityThread.java:5103)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at java.lang.reflect.Method.invokeNative(Native Method)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at java.lang.reflect.Method.invoke(Method.java:525)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at dalvik.system.NativeStart.main(Native Method)
11-04 01:24:10.543: E/AndroidRuntime(1050): Caused by: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 01:24:10.543: E/AndroidRuntime(1050):     at com.troysantry.tipcalculator.TipCalc.onCreate(TipCalc.java:45)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at android.app.Activity.performCreate(Activity.java:5133)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-04 01:24:10.543: E/AndroidRuntime(1050):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
11-04 01:24:10.543: E/AndroidRuntime(1050):     ... 11 more
11-04 01:29:11.177: I/Process(1050): Sending signal. PID: 1050 SIG: 9
11-04 01:31:32.080: D/AndroidRuntime(1109): Shutting down VM
11-04 01:31:32.080: W/dalvikvm(1109): threadid=1: thread exiting with uncaught exception (group=0x41465700)
11-04 01:31:32.194: E/AndroidRuntime(1109): FATAL EXCEPTION: main
11-04 01:31:32.194: E/AndroidRuntime(1109): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.troysantry.tipcalculator/com.troysantry.tipcalculator.TipCalc}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 01:31:32.194: E/AndroidRuntime(1109):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at android.app.ActivityThread.access$600(ActivityThread.java:141)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at android.os.Handler.dispatchMessage(Handler.java:99)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at android.os.Looper.loop(Looper.java:137)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at android.app.ActivityThread.main(ActivityThread.java:5103)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at java.lang.reflect.Method.invokeNative(Native Method)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at java.lang.reflect.Method.invoke(Method.java:525)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at dalvik.system.NativeStart.main(Native Method)
11-04 01:31:32.194: E/AndroidRuntime(1109): Caused by: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 01:31:32.194: E/AndroidRuntime(1109):     at com.troysantry.tipcalculator.TipCalc.onCreate(TipCalc.java:44)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at android.app.Activity.performCreate(Activity.java:5133)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-04 01:31:32.194: E/AndroidRuntime(1109):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
11-04 01:31:32.194: E/AndroidRuntime(1109):     ... 11 more
11-04 01:36:33.195: I/Process(1109): Sending signal. PID: 1109 SIG: 9
11-04 02:11:09.684: D/AndroidRuntime(1167): Shutting down VM
11-04 02:11:09.684: W/dalvikvm(1167): threadid=1: thread exiting with uncaught exception (group=0x41465700)
11-04 02:11:09.855: E/AndroidRuntime(1167): FATAL EXCEPTION: main
11-04 02:11:09.855: E/AndroidRuntime(1167): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.troysantry.tipcalculator/com.troysantry.tipcalculator.TipCalc}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 02:11:09.855: E/AndroidRuntime(1167):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at android.app.ActivityThread.access$600(ActivityThread.java:141)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at android.os.Handler.dispatchMessage(Handler.java:99)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at android.os.Looper.loop(Looper.java:137)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at android.app.ActivityThread.main(ActivityThread.java:5103)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at java.lang.reflect.Method.invokeNative(Native Method)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at java.lang.reflect.Method.invoke(Method.java:525)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at dalvik.system.NativeStart.main(Native Method)
11-04 02:11:09.855: E/AndroidRuntime(1167): Caused by: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 02:11:09.855: E/AndroidRuntime(1167):     at com.troysantry.tipcalculator.TipCalc.onCreate(TipCalc.java:44)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at android.app.Activity.performCreate(Activity.java:5133)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-04 02:11:09.855: E/AndroidRuntime(1167):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
11-04 02:11:09.855: E/AndroidRuntime(1167):     ... 11 more

Some Common Mistakes.

1.findViewById() of non existing view

Like when you use findViewById(R.id.button) when button id does not exist in layout XML.

2. Wrong cast.

If you wrong cast some class, then you get this error. Like you cast RelativeLayout to LinearLayout or EditText to TextView.

3. Activity not registered in manifest.xml

If you did not register Activity in manifest.xml then this error comes.

4. findViewById() with declaration at top level

Below code is incorrect. This will create error. Because you should do findViewById() after calling setContentView(). Because an View can be there after it is created.

public class MainActivity extends Activity {

  ImageView mainImage = (ImageView) findViewById(R.id.imageViewMain); //incorrect way

  @Override
  protected void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mainImage = (ImageView) findViewById(R.id.imageViewMain); //correct way
    //...
  }
}

5. Starting abstract Activity class.

When you try to start an Activity which is abstract, you will will get this error. So just remove abstract keyword before activity class name.

6. Using kotlin but kotlin not configured.

If your activity is written in Kotlin and you have not setup kotlin in your app. then you will get error. You can follow simple steps as written in Android Link or Kotlin Link. You can check this answer too.

More information

Read about Downcast and Upcast

Read about findViewById() method of Activity class

Super keyword in Java

How to register activity in manifest

First, eq is for comparing strings; == is for comparing numbers.

Even if the "if" condition is satisfied, it doesn't evaluate the "then" block.

I think your problem is that your variables don't contain what you think they do. I think your $str1 or $str2 contains something like "taste\n" or so. Check them by printing before your if: print "str1='$str1'\n";.

The trailing newline can be removed with the chomp($str1); function.

Ranking by stars or forks is not working. Each promoted or created by a famous company repository is popular at the beginning. Also it is possible to have a number of them which are in trend right now (publications, marketing, events). It doesn't mean that those repositories are useful/popular.

The gitmostwanted.com project (repo at github) analyses GH Archive data in order to highlight the most interesting repositories and exclude others. Just compare the results with mentioned resources.

If your array is static or global it's initialized to zero before main() starts. That would be the most efficient option.

If you are using JQuery with Form plugin, you can use:

$('#myForm').ajaxSubmit({
    headers: {
        "foo": "bar"
    }
});

Source: https://stackoverflow.com/a/31955515/9469069

:) Your using the thread in a wrong way. Just do the following:

private void runthread()
{

splashTread = new Thread() {
            @Override
            public void run() {
                try {
                    synchronized(this){

                        //wait 5 sec
                        wait(_splashTime);
                    }

                } catch(InterruptedException e) {}
                finally {
                    //call the handler to set the text
                }
            }
        };

        splashTread.start(); 
}

That's it.

For instance you can use

update tablename set datetimefield='19980223 14:23:05'
update tablename set datetimefield='02/23/1998 14:23:05'
update tablename set datetimefield='1998-12-23 14:23:05'
update tablename set datetimefield='23 February 1998 14:23:05'
update tablename set datetimefield='1998-02-23T14:23:05'

You need to be careful of day/month order since this will be language dependent when the year is not specified first. If you specify the year first then there is no problem; date order will always be year-month-day.

Typically, one follow the conventions used in the language's standard library.

Ok, so the easiest method to create several plots is this:

import matplotlib.pyplot as plt
x=[[1,2,3,4],[1,2,3,4],[1,2,3,4],[1,2,3,4]]
y=[[1,2,3,4],[1,2,3,4],[1,2,3,4],[1,2,3,4]]
for i in range(len(x)):
    plt.figure()
    plt.plot(x[i],y[i])
    # Show/save figure as desired.
    plt.show()
# Can show all four figures at once by calling plt.show() here, outside the loop.
#plt.show()

Note that you need to create a figure every time or pyplot will plot in the first one created.

If you want to create several data series all you need to do is:

import matplotlib.pyplot as plt
plt.figure()
x=[[1,2,3,4],[1,2,3,4],[1,2,3,4],[1,2,3,4]]
y=[[1,2,3,4],[2,3,4,5],[3,4,5,6],[7,8,9,10]]
plt.plot(x[0],y[0],'r',x[1],y[1],'g',x[2],y[2],'b',x[3],y[3],'k')

You could automate it by having a list of colours like ['r','g','b','k'] and then just calling both entries in this list and corresponding data to be plotted in a loop if you wanted to. If you just want to programmatically add data series to one plot something like this will do it (no new figure is created each time so everything is plotted in the same figure):

import matplotlib.pyplot as plt
x=[[1,2,3,4],[1,2,3,4],[1,2,3,4],[1,2,3,4]]
y=[[1,2,3,4],[2,3,4,5],[3,4,5,6],[7,8,9,10]]
colours=['r','g','b','k']
plt.figure() # In this example, all the plots will be in one figure.    
for i in range(len(x)):
    plt.plot(x[i],y[i],colours[i])
plt.show()

Hope this helps. If anything matplotlib has a very good documentation page with plenty of examples.

17 Dec 2019: added plt.show() and plt.figure() calls to clarify this part of the story.

Eeee this is a karma risk...

I have a DRY unit-testable abstraction because, well, because there were too many querystring variables to keep on in a legacy conversion.

The code below is from a utility class whose constructor requires a NameValueCollection input (this.source) and the string array "keys" is because the legacy app was rather organic and had developed the possibility for several different strings to be a potential input key. However I kind of like the extensibility. This method inspects the collection for the key and returns it in the datatype required.

private T GetValue<T>(string[] keys)
{
    return GetValue<T>(keys, default(T));
}

private T GetValue<T>(string[] keys, T vDefault)
{
    T x = vDefault;

    string v = null;

    for (int i = 0; i < keys.Length && String.IsNullOrEmpty(v); i++)
    {
        v = this.source[keys[i]];
    }

    if (!String.IsNullOrEmpty(v))
    {
        try
        {
            x = (typeof(T).IsSubclassOf(typeof(Enum))) ? (T)Enum.Parse(typeof(T), v) : (T)Convert.ChangeType(v, typeof(T));
        }
        catch(Exception e)
        {
            //do whatever you want here
        }
    }

    return x;
}

this.MdiParent.WindowState = FormWindowState.Minimized;

There are a couple of things wrong in this code:

1. You're using <input> the wrong way. You should use a <label> if you want to make the text behind it clickable.
2. It's setting the enabled attribute, which does not exist. Use disabled instead.
3. If it would be an attribute, it's value should not be false, use disabled="disabled" or simply disabled without a value.
4. If checking for someone clicking on a form event that will CHANGE it's value (like check-boxes and radio-buttons), use .change() instead.

I'm not sure what your code is supposed to do. My guess is that you want to disable the input field with class roomNumber once someone selects "Walk in" (and possibly re-enable when deselected). If so, try this code:

HTML:

<form class="type">
    <p>
        <input type="radio" name="type" checked="checked" id="guest" value="guest" />
        <label for="guest">In House</label>
    </p>
    <p>
        <input type="radio" name="type" id="walk_in" value="walk_in" />
        <label for="walk_in">Walk in</label>
    </p>
    <p>
        <input type="text" name="roomnumber" class="roomNumber" value="12345" />
    </p>
</form>

Javascript:

$("form input:radio").change(function () {
    if ($(this).val() == "walk_in") {
        // Disable your roomnumber element here
        $('.roomNumber').attr('disabled', 'disabled');
    } else {
        // Re-enable here I guess
        $('.roomNumber').removeAttr('disabled');
    }
});

I created a fiddle here: http://jsfiddle.net/k28xd/1/

When set the new value of element, you need call trigger change.

$('element').val(newValue).trigger('change');

I needed to have a button handler that created a form post to another application within the client's browser. I landed on this question but didn't see an answer that suited my scenario. This is what I came up with:

      protected void Button1_Click(object sender, EventArgs e)
        {

            var formPostText = @"<html><body><div>
<form method=""POST"" action=""OtherLogin.aspx"" name=""frm2Post"">
  <input type=""hidden"" name=""field1"" value=""" + TextBox1.Text + @""" /> 
  <input type=""hidden"" name=""field2"" value=""" + TextBox2.Text + @""" /> 
</form></div><script type=""text/javascript"">document.frm2Post.submit();</script></body></html>
";
            Response.Write(formPostText);
        }

You propably have to write some JavaScript, because there is no way to estimate the height of all the users of the page.

You first have to tell Gnuplot to use a style that uses points, e.g. with points or with linespoints. Try for example:

plot sin(x) with points

Output:

Now try:

plot sin(x) with points pointtype 5

Output:

You may also want to look at the output from the test command which shows you the capabilities of the current terminal. Here are the capabilities for my pngairo terminal:

Answer is already given above. Trying to differentiate between strong vs week and static vs dynamic concept.

What is Strongly typed VS Weakly typed?

Strongly Typed: Will not be automatically converted from one type to another

In Go or Python like strongly typed languages "2" + 8 will raise a type error, because they don't allow for "type coercion".

Weakly (loosely) Typed: Will be automatically converted to one type to another: Weakly typed languages like JavaScript or Perl won't throw an error and in this case JavaScript will results '28' and perl will result 10.

Perl Example:

my $a = "2" + 8;
print $a,"\n";

Save it to main.pl and run perl main.pl and you will get output 10.

What is Static VS Dynamic type?

In programming, programmer define static typing and dynamic typing with respect to the point at which the variable types are checked. Static typed languages are those in which type checking is done at compile-time, whereas dynamic typed languages are those in which type checking is done at run-time.

• Static: Types checked before run-time
• Dynamic: Types checked on the fly, during execution

What is this means?

In Go it checks typed before run-time (static check). This mean it not only translates and type-checks code it’s executing, but it will scan through all the code and type error would be thrown before the code is even run. For example,

package main

import "fmt"

func foo(a int) {
    if (a > 0) {
        fmt.Println("I am feeling lucky (maybe).")
    } else {
        fmt.Println("2" + 8)
    }
}

func main() {
    foo(2)
}

Save this file in main.go and run it, you will get compilation failed message for this.

go run main.go
# command-line-arguments
./main.go:9:25: cannot convert "2" (type untyped string) to type int
./main.go:9:25: invalid operation: "2" + 8 (mismatched types string and int)

But this case is not valid for Python. For example following block of code will execute for first foo(2) call and will fail for second foo(0) call. It's because Python is dynamically typed, it only translates and type-checks code it’s executing on. The else block never executes for foo(2), so "2" + 8 is never even looked at and for foo(0) call it will try to execute that block and failed.

def foo(a):
    if a > 0:
        print 'I am feeling lucky.'
    else:
        print "2" + 8
foo(2)
foo(0)

You will see following output

python main.py
I am feeling lucky.
Traceback (most recent call last):
  File "pyth.py", line 7, in <module>
    foo(0)
  File "pyth.py", line 5, in foo
    print "2" + 8
TypeError: cannot concatenate 'str' and 'int' objects

Your best bet is to create a new List<Customer>, iterate through the List<Object>, add each item to the new list, and return that.

In Bash:

for i in `sudo docker images|grep \<none\>|awk '{print $3}'`;do sudo docker rmi $i;done

This will remove all images with name "<none>". I found those images redundant.

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

Its because the font size (9px) is too small to display bold. Try 11px or more and it works fine.

ISO compliant dateString

If your dateString is RFC282 and ISO8601 compliant:
pass your string into the Date Constructor:

const dateString = "2020-10-30T12:52:27+05:30"; // ISO8601 compliant dateString
const D = new Date(dateString);                 // {object Date}

from here you can extract the desired values by using Date Getters:

D.getMonth() + 1  // 10 (PS: +1 since Month is 0-based)
D.getDate()       // 30
D.getFullYear()   // 2020

Non-standard date string

If you use a non standard date string:
destructure the string into known parts, and than pass the variables to the Date Constructor:

new Date(year, monthIndex [, day [, hours [, minutes [, seconds [, milliseconds]]]]])

const dateString = "30/10/2020 12:52:27";
const [d, M, y, h, m, s] = dateString.match(/\d+/g);

// PS: M-1 since Month is 0-based
const D = new Date(y, M-1, d, h, m, s);  // {object Date}


D.getMonth() + 1  // 10 (PS: +1 since Month is 0-based)
D.getDate()       // 30
D.getFullYear()   // 2020

Try This

ImagePath = "http://localhost/profilepics/abc.png";
   HttpWebRequest request = (HttpWebRequest)WebRequest.Create(ImagePath);
          HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream receiveStream = response.GetResponseStream();

type C:\temp\test.bat>C:\temp\test.log

A ViewGroup describes the layout of the Views in its group. The two basic examples of ViewGroups are LinearLayout and RelativeLayout. Breaking LinearLayout even further, you can have either Vertical LinearLayout or Horizontal LinearLayout. If you choose Vertical LinearLayout, your Views will stack vertically on your screen. The two most basic examples of Views are TextView and Button. Thus, if you have a ViewGroup of Vertical LinearLayout, your Views (e.g. TextViews and Buttons) would line up vertically down your screen.

When the other posters show nested ViewGroups, what they mean is, for example, one of the rows in my Vertical LinearLayout might actually, at the lower level, be several items arranged horizontally. In that case, I'd have a Horizontal LinearLayout as one of the children of my top level Vertical LinearLayout.

Example of Nested ViewGroups:
Parent ViewGroup = Vertical LinearLayout

Row1: TextView1
Row2: Button1
Row3: Image TextView2 Button2 <-- Horizontal Linear nested in Vertical Linear
Row4: TextView3
Row5: Button3

Youtube doesn't provide any option for an end time, but there alternative sites that provide this, like Tubechop. Otherwise try writing a function that either pauses video/skips to next when your when your video has played its desired duration.

OR: using the Youtube Javascript player API, you could do something like this:

function onPlayerStateChange(evt) {
    if (evt.data == YT.PlayerState.PLAYING && !done) {
        setTimeout(stopVideo, 6000);
        done = true;
    }
}

Youtube API blog

require section This section contains the packages/dependencies which are better candidates to be installed/required in the production environment.

require-dev section: This section contains the packages/dependencies which can be used by the developer to test her code (or to experiment on her local machine and she doesn't want these packages to be installed on the production environment).

Here is the jsFiddle

#backdrop{
    border: 2px solid red;
    width: 400px;
    height: 200px;
    position: absolute;
}

#curtain {
    border: 1px solid blue;
    width: 400px;
    height: 200px;
    position: absolute;
}

Use Z-index to move the one you want on top.

public class ListElementAdapter extends BaseAdapter{

    String[] data;
    Context context;
    LayoutInflater layoutInflater;


    public ListElementAdapter(String[] data, Context context) {
        super();
        this.data = data;
        this.context = context;
        layoutInflater = LayoutInflater.from(context);
    }

    @Override
    public int getCount() {

        return data.length;
    }

    @Override
    public Object getItem(int position) {

        return null;
    }

    @Override
    public long getItemId(int position) {

        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {


        convertView= layoutInflater.inflate(R.layout.item, null);

        TextView txt=(TextView)convertView.findViewById(R.id.text);

        txt.setText(data[position]);



        return convertView;
    }
}

Just call ListElementAdapter in your Main Activity and set Adapter to ListView.

\d means 'digit'. + means, '1 or more times'. So \d+ means one or more digit. It will match 12 and 1.

I got the same exception also, but it was previously running fine in another machine. Anyway above solution didn't worked for me. What i did to resolve it?

1. Copy dependencies list into clipboard.
2. enter "npm init" to create fresh new package.json
3. Paste the dependencies again back to package.json
4. run "npm install" again!

Done :) Hope it helps.

1. Yes
2. What do you mean by the same? It will be re-executed every time the method is run.
3. Yes, the .Net garbage collector uses an algorithm that starts with any global/in-scope variables, traverses them while following any reference it finds recursively, and deletes any object in memory deemed to be unreachable. see here for more detail on Garbage Collection
4. Yes, the memory from all variables declared in a method is released when the method exits as they are all unreachable. In addition, any variables that are declared but never used will be optimized out by the compiler, so in reality your Foo variable will never ever take up memory.
5. the using statement simply calls dispose on an IDisposable object when it exits, so this is equivalent to your second bullet point. Both will indicate that you are done with the object and tell the GC that you are ready to let go of it. Overwriting the only reference to the object will have a similar effect.

In case someone getting to here: I had a problem with the solutions when I removed divs from the iframe - the iframe didnt got shorter.

There is an Jquery plugin that does the job:

http://www.jqueryscript.net/layout/jQuery-Plugin-For-Auto-Resizing-iFrame-iFrame-Resizer.html

Knowing the scope of each can make things easier to remember.

process is node's global object, and .cwd() returns where node is running.

__dirname is module's property, and represents the file path of the module. In node, one module resides in one file.

Similarly, __filename is another module's property, which holds the file name of the module.

I would say the answer is: you can't. (or at least: you shouldn't). This is not what Webpack is supposed to do. Webpack is a bundler, and it should not be used for other tasks (in this case: copying static files is another task). You should use a tool like Grunt or Gulp to do such tasks. It is very common to integrate Webpack as a Grunt task or as a Gulp task. They both have other tasks useful for copying files like you described, for example, grunt-contrib-copy or gulp-copy.

For other assets (not the index.html), you can just bundle them in with Webpack (that is exactly what Webpack is for). For example, var image = require('assets/my_image.png');. But I assume your index.html needs to not be a part of the bundle, and therefore it is not a job for the bundler.

Unlike Java where you would declare boolean flag = True, in Python you can just declare myFlag = True

Python would interpret this as a boolean variable

aaa = ['row_163.pkl', 'row_394.pkl', 'row_679.pkl', 'row_202.pkl', 'row_1449.pkl', 'row_247.pkl', 'row_1353.pkl', 'row_749.pkl', 'row_1293.pkl', 'row_1304.pkl', 'row_78.pkl', 'row_532.pkl', 'row_9.pkl', 'row_1435.pkl']                                                                                                                                                                                                                                                                                                 
sorted(aaa, key=lambda x: int(os.path.splitext(x.split('_')[1])[0]))

As In case of mine requirement I have the case like row_163.pkl here os.path.splitext('row_163.pkl') will break it into ('row_163', '.pkl') so need to split it based on '_' also.

but in case of your requirement you can do something like

sorted(aa, key = lambda x: (int(re.sub('\D','',x)),x))

where

aa = ['run01', 'run08', 'run11', 'run12', 'run13', 'run14', 'run18']

and also for directory retrieving you can do sorted(os.listdir(path))

and for the case of like 'run01.txt' or 'run01.csv' you can do like this

sorted(files, key=lambda x : int(os.path.splitext(x)[0]))

Nullable Types

Nullable types are instances of the System.Nullable struct. A nullable type can represent the normal range of values for its underlying value type, plus an additional null value. For example, a [Nullable<Int32>], pronounced "Nullable of Int32," can be assigned any value from -2147483648 to 2147483647, or it can be assigned the null value. A [Nullable<bool>] can be assigned the values true or false, or null. The ability to assign null to numeric and Boolean types is particularly useful when dealing with databases and other data types containing elements that may not be assigned a value. For example, a Boolean field in a database can store the values true or false, or it may be undefined.

As a variation on the accepted answer you could also use the change_column_default method in your migrations:

def up
  change_column_default :profiles, :show_attribute, true
end

def down
  change_column_default :profiles, :show_attribute, nil
end

Rails API-docs

ALTER TABLE users CHANGE id int( 30 ) NOT NULL AUTO_INCREMENT

the integer parameter is based on my default sql setting have a nice day

ListView myListView = (ListView) rootView.findViewById(R.id.myListView);
ArrayList<String> myStringArray1 = new ArrayList<String>();
myStringArray1.add("something");
adapter = new CustomAdapter(getActivity(), R.layout.row, myStringArray1);
myListView.setAdapter(adapter);

Try it like this

public OnClickListener moreListener = new OnClickListener() {

    @Override
    public void onClick(View v) {
        adapter = null;
        myStringArray1.add("Andrea");
        adapter = new CustomAdapter(getActivity(), R.layout.row, myStringArray1);
        myListView.setAdapter(adapter);
        adapter.notifyDataSetChanged();
    }       
};

The default JavaScript "API" for setting a cookie is as easy as:

document.cookie = 'mycookie=valueOfCookie;expires=DateHere;path=/'

Use the jQuery cookie plugin like:

$.cookie('mycookie', 'valueOfCookie')

If you want to append to the file, open it with 'a'. If you want to seek through the file to find the place where you should insert the line, use 'r+'. (docs)

You can try this:

<div ng-app="app">
    <div ng-controller="AppCtrl">
        <a my-dir ng-repeat="user in users" ng-click="fxn()">{{user.name}}</a>
    </div>
</div>

<script>
var app = angular.module('app', []);

function AppCtrl($scope) {
        $scope.users = [{ name: 'John', id: 1 }, { name: 'anonymous' }];
        $scope.fxn = function () {
            alert('It works');
        };
    }

app.directive("myDir", function ($compile) {
    return {
        scope: {ngClick: '='}
    };
});
</script>

To debug php with vscode,you need these things:

1. vscode with php debuge plugin(XDebug) installed;
2. php with XDebug.so/XDebug.dll downloaded and configured;
3. a web server,such as apache/nginx or just nothing(use the php built-in server)

you can gently walk through step 1 and 2,by following the vscode official guide.It is fully recommended to use XDebug installation wizard to verify your XDebug configuration.

If you want to debug without a standalone web server,the php built-in maybe a choice.Start the built-in server by php -S localhost:port -t path/to/your/project command,setting your project dir as document root.You can refer to this post for more details.

Here is the command-line to pull from all of your git repositories whether they're or not submodules:

ROOT=$(git rev-parse --show-toplevel 2> /dev/null)
find "$ROOT" -name .git -type d -execdir git pull -v ';'

If you running it in your top git repository, you can replace "$ROOT" into ..

You can also throw a std::system_error as shown in the test code below. This method seems to produce more readable output than f.exception(...).

#include <exception> // <-- requires this
#include <fstream>
#include <iostream>

void process(const std::string& fileName) {
    std::ifstream f;
    f.open(fileName);

    // after open, check f and throw std::system_error with the errno
    if (!f)
        throw std::system_error(errno, std::system_category(), "failed to open "+fileName);

    std::clog << "opened " << fileName << std::endl;
}

int main(int argc, char* argv[]) {
    try {
        process(argv[1]);
    } catch (const std::system_error& e) {
        std::clog << e.what() << " (" << e.code() << ")" << std::endl;
    }
    return 0;
}

Example output (Ubuntu w/clang):

$ ./test /root/.profile
failed to open /root/.profile: Permission denied (system:13)
$ ./test missing.txt
failed to open missing.txt: No such file or directory (system:2)
$ ./test ./test
opened ./test
$ ./test $(printf '%0999x')
failed to open 000...000: File name too long (system:36)

Add this in your input element

<input
    action="action"
    onclick="window.history.go(-1); return false;"
    type="submit"
    value="Cancel"
/>

If you have anything in particular you want to hide (like a proprietary algorithm), put that on the server, or put it in a Flash movie and call it with JavaScript. Writing ActionScript is very similar to writing JavaScript, and you can communicate between JavaScript and ActionScript. You can do the same with Silverlight, but Silverlight doesn't have the penetration Flash does.

However, remember that any mobile phones can run your JavaScript, but not Silverlight or Flash, so you're crippling your mobile users if you go with Flash or Silverlight.

This combination (and values near to these) seems to "magically" work for me to keep the colorbar scaled to the plot, no matter what size the display.

plt.colorbar(im,fraction=0.046, pad=0.04)

It also does not require sharing the axis which can get the plot out of square.

Simplest Solution

Code:

import pandas as pd
pd.__version__

**Its double underscore before and after the word "version".

Output:

'0.14.1'

If you want to keep your line-height and force the placeholder to have the same, you can directly edit the placeholder CSS since the newer browser versions. That did the trick for me:

input::-webkit-input-placeholder { /* WebKit browsers */
  line-height: 1.5em;
}
input:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
  line-height: 1.5em;
}
input::-moz-placeholder { /* Mozilla Firefox 19+ */
  line-height: 1.5em;
}
input:-ms-input-placeholder { /* Internet Explorer 10+ */
  line-height: 1.5em;
}

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

MyClass.MyItem.Property1

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

That is not possible du to the Box Model. However you could use a workaround with css3's border-image, or border-color in general css.

However im unsure whether you may have a problem with resetting. Some browsers do set a margin to html as well. See Eric Meyers Reset CSS for more!

html{margin:0;padding:0;}

Use a function like this:

    public static string FlattenException(Exception exception)
    {
        var stringBuilder = new StringBuilder();

        while (exception != null)
        {
            stringBuilder.AppendLine(exception.Message);
            stringBuilder.AppendLine(exception.StackTrace);

            exception = exception.InnerException;
        }

        return stringBuilder.ToString();
    }

Then you can call it like this:

try
{
    // invoke code above
}
catch(MyCustomException we)
{
    Debug.Writeline(FlattenException(we));
}

Recent I have met several times of stop abnormal. Although shutdown.sh provides some information, The situations are:

• result of the command ps -ef| grep java is Null.
• result of the command ps -ef| grep java is not null.

My opinion is just kill the process of Catalina and remove the pid file (In your situation is /opt/tomcat/work/catalina.pid.)

The result seems not so seriously to influence others.

also, with wmode=opaque and with IE, the Flash gets the keyboard events, but also the html page receives them, so it can't be use for something like embedding a flash game. Very annoying

If nothing else works which was the case for me, in the problems view, right click and copy the errors and paste it in a text editor. And scroll down to see if there are other errors besides just the missing artifact.

Eclipse problems view only shows about 100 errors and the errors that are not visible might be the ones that's causing all the other missing artifact errors.

Once I saw all the errors, I was able to figure out what the issue was and fixed it.

There is a command available for this on the SQLite command line:

.tables ?PATTERN?      List names of tables matching a LIKE pattern

Which converts to the following SQL:

SELECT name FROM sqlite_master
WHERE type IN ('table','view') AND name NOT LIKE 'sqlite_%'
UNION ALL
SELECT name FROM sqlite_temp_master
WHERE type IN ('table','view')
ORDER BY 1

Let's not over complicate things...:

(Get-CimInstance Win32_PhysicalMemory | Measure-Object -Property capacity -Sum).sum /1gb

Late answer but can be helpful

function areThereDuplicates(args) {

    let count = {};
    for(let i = 0; i < args.length; i++){
         count[args[i]] = 1 + (count[args[i]] || 0);
    }
    let found = Object.keys(count).filter(function(key) {
        return count[key] > 1;
    });
    return found.length ? true : false; 
}

areThereDuplicates([1,2,5]);

you can use the <text> tag for both cshtml code with javascript

As an extension to the accepted answer, you could switch the type of Exception resulting in a pattern that is somewhat like the original example:

try {

    // Try something

} catch (Exception $e) {

    switch (get_class($e)) {

        case 'AError':
        case 'BError':
            // Handle A or B
            break;

        case 'CError':
            // Handle C
            break;

        case default:
            // Rethrow the Exception
            throw $e;

    }

}

findAny & orElse

By using findAny() and orElse():

Person matchingObject = objects.stream().
filter(p -> p.email().equals("testemail")).
findAny().orElse(null);

Stops looking after finding an occurrence.

findAny

Optional<T> findAny()

Returns an Optional describing some element of the stream, or an empty Optional if the stream is empty. This is a short-circuiting terminal operation. The behavior of this operation is explicitly nondeterministic; it is free to select any element in the stream. This is to allow for maximal performance in parallel operations; the cost is that multiple invocations on the same source may not return the same result. (If a stable result is desired, use findFirst() instead.)

You should learn objective c and program native apps. Do not rely on these things you think will make life easier. Apple has made sure the easiest way is using their native tools and language. For your 100 lines of javascript I can do the same in 3 lines of code or no code at all depending on the element. Watch some tutorials - if you understand javascript then objective c is not hard. Workarounds are miserable and apple can pull the plug on you anytime they want.

Try this:

SELECT name, email
FROM users
GROUP BY name, email
HAVING ( COUNT(*) > 1 )

Further to @T.J. Crowder 's answer, I've added a recursive outer loop that allows one to iterate through all the scripts in an array and then execute a function once all the scripts are loaded:

loadList([array of scripts], 0, function(){// do your post-scriptload stuff})

function loadList(list, i, callback)
{
    {
        loadScript(list[i], function()
        {
            if(i < list.length-1)
            {
                loadList(list, i+1, callback);  
            }
            else
            {
                callback();
            }
        })
    }
}

Of course you can make a wrapper to get rid of the '0' if you like:

function prettyLoadList(list, callback)
{
    loadList(list, 0, callback);
}

Nice work @T.J. Crowder - I was cringing at the 'just add a couple seconds delay before running the callback' I saw in other threads.

IMHO, the reason why 2 queries

SELECT * FROM count_test WHERE b = 666 ORDER BY c LIMIT 5;
SELECT count(*) FROM count_test WHERE b = 666;

are faster than using SQL_CALC_FOUND_ROWS

SELECT SQL_CALC_FOUND_ROWS * FROM count_test WHERE b = 555 ORDER BY c LIMIT 5;

has to be seen as a particular case.

It in facts depends on the selectivity of the WHERE clause compared to the selectivity of the implicit one equivalent to the ORDER + LIMIT.

As Arvids told in comment (http://www.mysqlperformanceblog.com/2007/08/28/to-sql_calc_found_rows-or-not-to-sql_calc_found_rows/#comment-1174394), the fact that the EXPLAIN use, or not, a temporay table, should be a good base for knowing if SCFR will be faster or not.

But, as I added (http://www.mysqlperformanceblog.com/2007/08/28/to-sql_calc_found_rows-or-not-to-sql_calc_found_rows/#comment-8166482), the result really, really depends on the case. For a particular paginator, you could get to the conclusion that “for the 3 first pages, use 2 queries; for the following pages, use a SCFR” !

call your (windows-)git with cygpath as parameter, in order to convert the "calling path". I m confused why that should be a problem.

Here is my Java code for Selenium WebDriver. Write the following method and call it during assertion:

protected boolean isElementPresent(By by){
        try{
            driver.findElement(by);
            return true;
        }
        catch(NoSuchElementException e){
            return false;
        }
    }

If you only want to change form's action, I prefer changing action on-form-submit, rather than on-input-change. It fires only once.

$('#search-form').submit(function(){
  var formAction = $("#selectsearch").val() == "people" ? "user" : "content";
  $("#search-form").attr("action", "/search/" + formAction);
}); 

This is how I do it:

using System.IO;
using System.Security.Cryptography;

public string checkMD5(string filename)
{
    using (var md5 = MD5.Create())
    {
        using (var stream = File.OpenRead(filename))
        {
            return Encoding.Default.GetString(md5.ComputeHash(stream));
        }
    }
}

Here is a link to a Visio Stencil and Template for UML 2.0.

Had to add the service in the calling App.config file to have it work. Make sure that you but it after all . This seemed to work for me.

I solved this problem.

My Java version was the 1.6 and I found that was using 1.7 with CDI however after that I changed the Java version to 1.7 and import the package javax.faces.bean.ManagedBean and everything worked.

Thanks @PM77-1

If you're using XHR, then setRequestHeader should work, e.g.

xhr.setRequestHeader('custom-header', 'value');

P.S. You should use Hijax to modify the behavior of your anchors so that it works if for some reason the AJAX isn't working for your clients (like a busted script elsewhere on the page).

Git automatically colors most of its output if you ask it to. You can get very specific about what you want colored and how; but to turn on all the default terminal coloring, set color.ui to true:

git config --global color.ui true

PHP parser errors take some getting used to; if it complains about an unexpected 'something' at line X, look at line X-1 first. In this case it will not tell you that you forgot a semi-colon at the end of the previous line , instead it will complain about the if that comes next.

You'll get used to it :)

You could make a recursive function do the work

• Let L = size(M)
• Let idx = zeros(L,1)
• Take length(L) as the maximum depth
• Loop for idx(depth) = 1:L(depth)
• If your depth is length(L), do the element operation, else call the function again with depth+1

Not as fast as vectorized methods if you want to check all the points, but if you don't need to evaluate most of them it can be quite a time saver.

Click on the form in the Solution Explorer

If you use the the framework fragments and the SDK version of the device is lower than 23, OnAttach(Context context) wouldn't be called.

I use support fragments instead, so deprecation is fixed and onAttach(Context context) always gets called.

I tried the following settings in django 2.1.1

base.html

<head>
  {% load static %}
  <link rel="shortcut icon" type="image/png" href="{% static 'images/favicon.ico' %}"/>
</head>

settings.py

 STATIC_ROOT = os.path.join(BASE_DIR, 'static')
 STATIC_URL = '/static/'` <br>`.............

Project directory structure

view live here

Using % you will run into a hex operation error when the time value is 7-9. To avoid this, use DelayedExpansion and grab time values with !min:~1!

An alternate method, if you have PowerShell is to call that:

for /F "usebackq delims=Z" %%i IN (`powershell Get-Date -format u`) do (set server-time=%%i)

Using Spring Data JPA there is a provision to select specific columns from database

---- In DAOImpl ----

@Override
    @Transactional
    public List<Employee> getAllEmployee() throws Exception {
    LOGGER.info("Inside getAllEmployee");
    List<Employee> empList = empRepo.getNameAndCityOnly();
    return empList;
    }

---- In Repo ----

public interface EmployeeRepository extends CrudRepository<Employee,Integer> {
    @Query("select e.name, e.city from Employee e" )
    List<Employee> getNameAndCityOnly();
}

It worked 100% in my case. Thanks.

I believe it means 'anything but a whitespace character'.

The biggest problem I ran into doing this was cases like "Bob R. Smith, Jr.". The algorithm I used is posted at http://www.blackbeltcoder.com/Articles/strings/splitting-a-name-into-first-and-last-names. My code is in C# but you could port it if you must have in SQL.

Actually, the problem here is the use of ReadContentAsObject. Unfortunately, this method does not live up to its expectations; while it should detect the most appropirate type for the value, it actually returns a string, no matter what(this can be verified using Reflector).

However, in your specific case, you already know the type you want to cast to, therefore i would say you are using the wrong method.

Try using ReadContentAs instead, it's exactly what you need.

private static T ReadData<T>(XmlReader reader, string value)
{
    reader.MoveToAttribute(value);
    object readData = reader.ReadContentAs(typeof(T), null);
    return (T)readData;
}

To get time in milliseconds, it's better to add .round(3), so it will be more accurate in some cases:

puts Time.now.to_f # => 1453402722.577573

(Time.now.to_f.round(3)*1000).to_i  # => 1453402722578

A very important distinction, which is easy to miss, is the default bheavior of these two functions, when it comes to exceptions.

I'll use this example to simulate a coroutine that will raise exceptions, sometimes -

import asyncio
import random


async def a_flaky_tsk(i):
    await asyncio.sleep(i)  # bit of fuzz to simulate a real-world example

    if i % 2 == 0:
        print(i, "ok")
    else:
        print(i, "crashed!")
        raise ValueError

coros = [a_flaky_tsk(i) for i in range(10)]

await asyncio.gather(*coros) outputs -

0 ok
1 crashed!
Traceback (most recent call last):
  File "/Users/dev/PycharmProjects/trading/xxx.py", line 20, in <module>
    asyncio.run(main())
  File "/Users/dev/.pyenv/versions/3.8.2/lib/python3.8/asyncio/runners.py", line 43, in run
    return loop.run_until_complete(main)
  File "/Users/dev/.pyenv/versions/3.8.2/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
    return future.result()
  File "/Users/dev/PycharmProjects/trading/xxx.py", line 17, in main
    await asyncio.gather(*coros)
  File "/Users/dev/PycharmProjects/trading/xxx.py", line 12, in a_flaky_tsk
    raise ValueError
ValueError

As you can see, the coros after index 1 never got to execute.

But await asyncio.wait(coros) continues to execute tasks, even if some of them fail -

0 ok
1 crashed!
2 ok
3 crashed!
4 ok
5 crashed!
6 ok
7 crashed!
8 ok
9 crashed!
Task exception was never retrieved
future: <Task finished name='Task-10' coro=<a_flaky_tsk() done, defined at /Users/dev/PycharmProjects/trading/xxx.py:6> exception=ValueError()>
Traceback (most recent call last):
  File "/Users/dev/PycharmProjects/trading/xxx.py", line 12, in a_flaky_tsk
    raise ValueError
ValueError
Task exception was never retrieved
future: <Task finished name='Task-8' coro=<a_flaky_tsk() done, defined at /Users/dev/PycharmProjects/trading/xxx.py:6> exception=ValueError()>
Traceback (most recent call last):
  File "/Users/dev/PycharmProjects/trading/xxx.py", line 12, in a_flaky_tsk
    raise ValueError
ValueError
Task exception was never retrieved
future: <Task finished name='Task-2' coro=<a_flaky_tsk() done, defined at /Users/dev/PycharmProjects/trading/xxx.py:6> exception=ValueError()>
Traceback (most recent call last):
  File "/Users/dev/PycharmProjects/trading/xxx.py", line 12, in a_flaky_tsk
    raise ValueError
ValueError
Task exception was never retrieved
future: <Task finished name='Task-9' coro=<a_flaky_tsk() done, defined at /Users/dev/PycharmProjects/trading/xxx.py:6> exception=ValueError()>
Traceback (most recent call last):
  File "/Users/dev/PycharmProjects/trading/xxx.py", line 12, in a_flaky_tsk
    raise ValueError
ValueError
Task exception was never retrieved
future: <Task finished name='Task-3' coro=<a_flaky_tsk() done, defined at /Users/dev/PycharmProjects/trading/xxx.py:6> exception=ValueError()>
Traceback (most recent call last):
  File "/Users/dev/PycharmProjects/trading/xxx.py", line 12, in a_flaky_tsk
    raise ValueError
ValueError

Ofcourse, this behavior can be changed for both by using -

asyncio.gather(..., return_exceptions=True)

or,

asyncio.wait([...], return_when=asyncio.FIRST_EXCEPTION)

But it doesn't end here!

Notice: Task exception was never retrieved in the logs above.

asyncio.wait() won't re-raise exceptions from the child tasks until you await them individually. (The stacktrace in the logs are just messages, they cannot be caught!)

done, pending = await asyncio.wait(coros)
for tsk in done:
    try:
        await tsk
    except Exception as e:
        print("I caught:", repr(e))

Output -

0 ok
1 crashed!
2 ok
3 crashed!
4 ok
5 crashed!
6 ok
7 crashed!
8 ok
9 crashed!
I caught: ValueError()
I caught: ValueError()
I caught: ValueError()
I caught: ValueError()
I caught: ValueError()

On the other hand, to catch exceptions with asyncio.gather(), you must -

results = await asyncio.gather(*coros, return_exceptions=True)
for result_or_exc in results:
    if isinstance(result_or_exc, Exception):
        print("I caught:", repr(result_or_exc))

(Same output as before)

  $filelist | % {
    $file = $_
    mkdir -force (Split-Path $dest) | Out-Null
    cp $file $dest
  } 

* for python 2.x *

Use a trailing comma to avoid a newline.

print "Hey Guys!",
print "This is how we print on the same line."

The output for the above code snippet would be,

Hey Guys! This is how we print on the same line.

* for python 3.x *

for i in range(10):
    print(i, end="<separator>") # <separator> = \n, <space> etc.

The output for the above code snippet would be (when <separator> = " "),

0 1 2 3 4 5 6 7 8 9

You are missing the selector in the .on function:

.on(eventType, selector, function)

This selector is very important!

http://api.jquery.com/on/

If new HTML is being injected into the page, select the elements and attach event handlers after the new HTML is placed into the page. Or, use delegated events to attach an event handler

See jQuery 1.9 .live() is not a function for more details.

Not sure why is this complicated. I would do this basic javascript

<body onresize='document.getElementsByTagName("body")[0].style[ "font-size" ] = document.body.clientWidth*(12/1280) + "px";'>

Where 12 means 12px at 1280 resolution. You decide the value you want here

Add the following css to your html and try changing the top, right, bottom, left values.

.modal {
   position: absolute;
   top: 10px;
   right: 100px;
   bottom: 0;
   left: 0;
   z-index: 10040;
   overflow: auto;
   overflow-y: auto;
}

Two ways:

1. Have a bean implement ApplicationListener<ContextClosedEvent>. onApplicationEvent() will get called before the context and all the beans are destroyed.

2. Have a bean implement Lifecycle or SmartLifecycle. stop() will get called before the context and all the beans are destroyed.

Either way you can shut down the task stuff before the bean destroying mechanism takes place.

Eg:

@Component
public class ContextClosedHandler implements ApplicationListener<ContextClosedEvent> {
    @Autowired ThreadPoolTaskExecutor executor;
    @Autowired ThreadPoolTaskScheduler scheduler;

    @Override
    public void onApplicationEvent(ContextClosedEvent event) {
        scheduler.shutdown();
        executor.shutdown();
    }       
}

(Edit: Fixed method signature)

As an unordered collection type, set([8, 1, 6]) is equivalent to set([1, 6, 8]).

While it might be nicer to display the set contents in sorted order, that would make the repr() call more expensive.

Internally, the set type is implemented using a hash table: a hash function is used to separate items into a number of buckets to reduce the number of equality operations needed to check if an item is part of the set.

To produce the repr() output it just outputs the items from each bucket in turn, which is unlikely to be the sorted order.

... And the answer is:

Set SrcRange = Sheets("Src").Range("A2:A9")
SrcRange.Copy Destination:=Sheets("Dest").Range("A2")

The Set makes all the difference. Then it works like a charm.

Try this when you want to "fix" your body's scroll:

jQuery('body').css('height', '100vh').css('overflow-y', 'hidden');

and this when you want to turn it normal again:

jQuery('body').css('height', '').css('overflow-y', '');

With django 1.5 (at least) you can define the template you want to use for a particular modeladmin

see https://docs.djangoproject.com/en/1.5/ref/contrib/admin/#custom-template-options

You can do something like

class Myadmin(admin.ModelAdmin):
    change_form_template = 'change_form.htm'

With change_form.html being a simple html template extending admin/change_form.html (or not if you want to do it from scratch)

If you want to find out only whether or not the files are identical, you can use the Windows fc command in binary mode:

fc.exe /b file1 file2

For details, see the reference for fc

per this thread

To prefix a set of lines I use one of two different approaches:

One approach is the block select (mentioned by sth). In general, you can select a rectangular region with ctrl-V followed by cursor-movement. Once you've highlighted a rectangle, pressing shift-I will insert characters on the left side of the rectangle, or shift-A will append them on the right side of the rectangle. So you can use this technique to make a rectangle that includes the left-most column of the lines you want to prefix, hit shift-I, type the prefix, and then hit escape.

The other approach is to use a substitution (as mentioned by Brian Agnew). Brian's substitution will affect the entire file (the % in the command means "all lines"). To affect just a few lines the easiest approach is to hit shift-V (which enables visual-line mode) while on the first/last line, and then move to the last/first line. Then type:

:s/^/YOUR PREFIX/

The ^ is a regex (in this case, the beginning of the line). By typing this in visual line mode you'll see '<,'> inserted before the s automatically. This means the range of the substitution will be the visual selection.

Extra tip: if your prefix contains slashes, you can either escape them with backslash, or you can use a different punctuation character as the separator in the command. For example, to add C++ line comments, I usually write:

:s:^:// :

For adding a suffix the substitution approach is generally easier unless all of your lines are exactly the same length. Just use $ for the pattern instead of ^ and your string will be appended instead of pre-pended.

If you want to add a prefix and a suffix simultaneously, you can do something like this:

:s/.*/PREFIX & SUFFIX/

The .* matches the whole line. The & in the replacement puts the matched text (the whole line) back, but now it'll have your prefix and suffix added.

BTW: when commenting out code you'll probably want to uncomment it later. You can use visual-block (ctrl-V) to select the slashes and then hit d to delete them, or you can use a substitution (probably with a visual line selection, made with shift-V) to remove the leading slashes like this:

:s:// ::

These two settings worked for me to upload 1GB mp4 videos.

<system.web>
    <httpRuntime maxRequestLength="2097152" requestLengthDiskThreshold="2097152" executionTimeout="240"/>
</system.web>
<system.webServer>
    <security>
        <requestFiltering>
            <requestLimits maxAllowedContentLength="2147483648" />
        </requestFiltering>
    </security>
</system.webServer>

I found an easier way to go about this nagging problem. Register GlassFish Server without setting user/password the first time. Then right click GlassFish then to View Domain Admin Console. On the Glassfish admin page that appears, you will see Change Administrator Password under Administration on the GlassFish Console- Common Tasks. Click to set your password by changing the default password. The user is admin but the password is up to you to change it. Save your change. Go back to Netbeans and you will immediately see a popout screen asking you to enter your admin credentials. Enter admin for user and the password. That is it. If your Netbeans come with Glassfish, just right click the server then to View Domain Admin Console then follow the rest of the steps explained above

This feature is included as part of jquery ui http://docs.jquery.com/UI/Effects/Slide if you want to extend it with your own names you can use this.

jQuery.fn.extend({
  slideRightShow: function() {
    return this.each(function() {
        $(this).show('slide', {direction: 'right'}, 1000);
    });
  },
  slideLeftHide: function() {
    return this.each(function() {
      $(this).hide('slide', {direction: 'left'}, 1000);
    });
  },
  slideRightHide: function() {
    return this.each(function() {
      $(this).hide('slide', {direction: 'right'}, 1000);
    });
  },
  slideLeftShow: function() {
    return this.each(function() {
      $(this).show('slide', {direction: 'left'}, 1000);
    });
  }
});

you will need the following references

<script src="http://code.jquery.com/jquery-latest.js"></script>
<script src="http://jquery-ui.googlecode.com/svn/tags/latest/ui/jquery.effects.core.js"></script>
<script src="http://jquery-ui.googlecode.com/svn/tags/latest/ui/jquery.effects.slide.js"></script>

The Distinct() guarantees that there are no duplicates pair (CategoryId, CategoryName).

- exactly that

Anonymous types 'magically' implement Equals and GetHashcode

I assume another error somewhere. Case sensitivity? Mutable classes? Non-comparable fields?

Message Digest (hash) is byte[] in byte[] out

A message digest is defined as a function that takes a raw byte array and returns a raw byte array (aka byte[]). For example SHA-1 (Secure Hash Algorithm 1) has a digest size of 160 bit or 20 byte. Raw byte arrays cannot usually be interpreted as character encodings like UTF-8, because not every byte in every order is an legal that encoding. So converting them to a String with:

new String(md.digest(subject), StandardCharsets.UTF_8)

might create some illegal sequences or has code-pointers to undefined Unicode mappings:

[?a?????%l?3~??.

Binary-to-text Encoding

For that binary-to-text encoding is used. With hashes, the one that is used most is the HEX encoding or Base16. Basically a byte can have the value from 0 to 255 (or -128 to 127 signed) which is equivalent to the HEX representation of 0x00-0xFF. Therefore hex will double the required length of the output, that means a 20 byte output will create a 40 character long hex string, e.g.:

2fd4e1c67a2d28fced849ee1bb76e7391b93eb12

Note that it is not required to use hex encoding. You could also use something like base64. Hex is often preferred because it is easier readable by humans and has a defined output length without the need for padding.

You can convert a byte array to hex with JDK functionality alone:

new BigInteger(1, token).toString(16)

Note however that BigInteger will interpret given byte array as number and not as a byte string. That means leading zeros will not be outputted and the resulting string may be shorter than 40 chars.

Using Libraries to Encode to HEX

You could now copy and paste an untested byte-to-hex method from Stack Overflow or use massive dependencies like Guava.

To have a go-to solution for most byte related issues I implemented a utility to handle these cases: bytes-java (Github)

To convert your message digest byte array you could just do

String hex = Bytes.wrap(md.digest(subject)).encodeHex();

or you could just use the built-in hash feature

String hex =  Bytes.from(subject).hashSha1().encodeHex();

I had the same problem as above and Eclipse suggested installing:

Hint: On 64-bit systems, make sure the 32-bit libraries are installed:   
   "sudo apt-get install ia32-libs"    
or on some systems,  
   "sudo apt-get install lib32z1"   

When I tried to install ia32-libs, Ubuntu prompted to install three other packages:

$ sudo apt-get install ia32-libs  
Reading package lists... Done  
Building dependency tree         
Reading state information... Done  
Package ia32-libs is not available, but is referred to by another package.  
This may mean that the package is missing, has been obsoleted, or  
is only available from another source  
However the following packages replace it:  
  lib32z1 lib32ncurses5 lib32bz2-1.0  

E: Package 'ia32-libs' has no installation candidate  
$   
$ sudo apt-get install lib32z1 lib32ncurses5 lib32bz2-1.0    

With Android Studio and intellij, I also had to install the 32bit version of libstdc++6:

sudo apt-get install lib32stdc++6

As far as I can see in the manual, it is not possible to call functions inside HEREDOC strings. A cumbersome way would be to prepare the words beforehand:

<?php

    $world = _("World");

    $str = <<<EOF
    <p>Hello</p>
    <p>$world</p>
EOF;
    echo $str;
?>

a workaround idea that comes to mind is building a class with a magic getter method.

You would declare a class like this:

class Translator
{
 public function __get($name) {
  return _($name); // Does the gettext lookup
  }
 }

Initialize an object of the class at some point:

  $translate = new Translator();

You can then use the following syntax to do a gettext lookup inside a HEREDOC block:

    $str = <<<EOF
    <p>Hello</p>
    <p>{$translate->World}</p>
EOF;
    echo $str;
?>

$translate->World will automatically be translated to the gettext lookup thanks to the magic getter method.

To use this method for words with spaces or special characters (e.g. a gettext entry named Hello World!!!!!!, you will have to use the following notation:

 $translate->{"Hello World!!!!!!"}

This is all untested but should work.

Update: As @mario found out, it is possible to call functions from HEREDOC strings after all. I think using getters like this is a sleek solution, but using a direct function call may be easier. See the comments on how to do this.

Yes you can do this.

*[id^='term-']{
    [css here]
}

This will select all ids that start with 'term-'.

As for the reason for not doing this, I see where it would be preferable to select this way; as for style, I wouldn't do it myself, but it's possible.

If you want to generate a number of random booleans you could use numpy's random module. From the documentation

np.random.randint(2, size=10)

will return 10 random uniform integers in the open interval [0,2). The size keyword specifies the number of values to generate.

You could try converting it into a Arraylist and use the addAll method then convert back to an array.

List list = new ArrayList(Arrays.asList(first));
  list.addAll(Arrays.asList(second));
  String[] both = list.toArray();

What's a "block scheme"?

If I were drawing it, I might draw a box with "for each x in y" written in it.

If you're drawing a flowchart, there's always a loop with a decision box.

Nassi-Schneiderman diagrams have a loop construct you could use.

Its so simple to get logs in React-Native

Use console.log and console.warn

console.log('character', parameter)

console.warn('character', parameter)

This log you can view in browser console. If you want to check device log or say production APK log you can use

adb logcat

adb -d logcat

Try this

/.*[^a]$/

The [] denotes a character class, and the ^ inverts the character class to match everything but an a.

OpenFileDialog fdlg = new OpenFileDialog();
fdlg.Title = "C# Corner Open File Dialog" ;
fdlg.InitialDirectory = @"c:\" ;
fdlg.Filter = "All files (*.*)|*.*|All files (*.*)|*.*" ;
fdlg.FilterIndex = 2 ;
fdlg.RestoreDirectory = true ;
if(fdlg.ShowDialog() == DialogResult.OK)
{
textBox1.Text = fdlg.FileName ;
}

In this code you can put your address in a text box.

You can add line-height:51px to #AlertDiv h1 if you know it's only ever going to be one line. Also add text-align:center to #AlertDiv.

#AlertDiv {
    top:198px;
    left:365px;
    width:62px;
    height:51px;
    color:white;
    position:absolute;
    text-align:center;
    background-color:black;
}

#AlertDiv h1 {
    margin:auto;
    line-height:51px;
    vertical-align:middle;
}

The demo below also uses negative margins to keep the #AlertDiv centered on both axis, even when the window is resized.

Demo: jsfiddle.net/KaXY5

In Swift you can do the following code

import UIKit
extension UINavigationController: UIGestureRecognizerDelegate {

    open override func viewDidLoad() {
        super.viewDidLoad()
        interactivePopGestureRecognizer?.delegate = self
    }

    public func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
        return viewControllers.count > 1
    }
}

Above code helps in swift left to go back to previous controller like Facebook, Twitter.

No, you would have to use a for-loop for that.

for (int i = 0; i < lst1.Count; i++)
{
    //lst1[i]...
    //lst2[i]...
}

You can't do something like

foreach (var objCurrent1 int lst1, var objCurrent2 in lst2)
{
    //...
}

Since Steve Tjoa's answer always pops up first and mostly lonely when I search for multiple y-axes at Google, I decided to add a slightly modified version of his answer. This is the approach from this matplotlib example.

Reasons:

• His modules sometimes fail for me in unknown circumstances and cryptic intern errors.
• I don't like to load exotic modules I don't know (mpl_toolkits.axisartist, mpl_toolkits.axes_grid1).
• The code below contains more explicit commands of problems people often stumble over (like single legend for multiple axes, using viridis, ...) rather than implicit behavior.

import matplotlib.pyplot as plt 

# Create figure and subplot manually
# fig = plt.figure()
# host = fig.add_subplot(111)

# More versatile wrapper
fig, host = plt.subplots(figsize=(8,5)) # (width, height) in inches
# (see https://matplotlib.org/3.3.3/api/_as_gen/matplotlib.pyplot.subplots.html)
    
par1 = host.twinx()
par2 = host.twinx()
    
host.set_xlim(0, 2)
host.set_ylim(0, 2)
par1.set_ylim(0, 4)
par2.set_ylim(1, 65)
    
host.set_xlabel("Distance")
host.set_ylabel("Density")
par1.set_ylabel("Temperature")
par2.set_ylabel("Velocity")

color1 = plt.cm.viridis(0)
color2 = plt.cm.viridis(0.5)
color3 = plt.cm.viridis(.9)

p1, = host.plot([0, 1, 2], [0, 1, 2],    color=color1, label="Density")
p2, = par1.plot([0, 1, 2], [0, 3, 2],    color=color2, label="Temperature")
p3, = par2.plot([0, 1, 2], [50, 30, 15], color=color3, label="Velocity")

lns = [p1, p2, p3]
host.legend(handles=lns, loc='best')

# right, left, top, bottom
par2.spines['right'].set_position(('outward', 60))

# no x-ticks                 
par2.xaxis.set_ticks([])

# Sometimes handy, same for xaxis
#par2.yaxis.set_ticks_position('right')

# Move "Velocity"-axis to the left
# par2.spines['left'].set_position(('outward', 60))
# par2.spines['left'].set_visible(True)
# par2.yaxis.set_label_position('left')
# par2.yaxis.set_ticks_position('left')

host.yaxis.label.set_color(p1.get_color())
par1.yaxis.label.set_color(p2.get_color())
par2.yaxis.label.set_color(p3.get_color())

# Adjust spacings w.r.t. figsize
fig.tight_layout()
# Alternatively: bbox_inches='tight' within the plt.savefig function 
#                (overwrites figsize)

# Best for professional typesetting, e.g. LaTeX
plt.savefig("pyplot_multiple_y-axis.pdf")
# For raster graphics use the dpi argument. E.g. '[...].png", dpi=200)'

I have soled the problem by changing target android version to 28 in project.properties (target=android-28) and installed cordova-plugin-androidx and cordova-plugin-androidx-adapter.

A moving average is a convolution, and numpy will be faster than most pure python operations. This will give you the 10 point moving average.

import numpy as np
smoothed = np.convolve(data, np.ones(10)/10)

I would also strongly suggest using the great pandas package if you are working with timeseries data. There are some nice moving average operations built in.

Very simple, no library required:

var date = new Date();
var firstDay = new Date(date.getFullYear(), date.getMonth(), 1);
var lastDay = new Date(date.getFullYear(), date.getMonth() + 1, 0);

or you might prefer:

var date = new Date(), y = date.getFullYear(), m = date.getMonth();
var firstDay = new Date(y, m, 1);
var lastDay = new Date(y, m + 1, 0);

EDIT

Some browsers will treat two digit years as being in the 20th century, so that:

new Date(14, 0, 1);

gives 1 January, 1914. To avoid that, create a Date then set its values using setFullYear:

var date = new Date();
date.setFullYear(14, 0, 1); // 1 January, 14

Elaborating a bit more on Taylor Gautier's reply (sorry, I dont have enough reputation to add a comment), I'd reply to Dean Richardson on how to do what he wanted, without any additional JS code. Pure CSS.

You would replace his .btn with the following:

<a class="btn showdetails" data-toggle="collapse" data-target="#viewdetails"></a>

And add a small CSS for when the content is displayed:

.in.collapse+a.btn.showdetails:before { 
    content:'Hide details «';
}
.collapse+a.btn.showdetails:before { 
    content:'Show details »'; 
}

Here is his modified example

For clarity, I thought that a direct example of grabbing onto a resource can be shown from the following that I think contributes to the response for this question with a quick direct example.

private MenuItem menuItem_;

@Override
public boolean onCreateOptionsMenu(Menu menuF) 
{
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu_layout, menuF);
    menuItem_ = menuF.findItem(R.id.menu_item_identifier);
    return true;
}

In this case you hold onto a MenuItem reference at the beginning and then change the state of it (for icon state changes for example) at a later given point in time.

There's no way to do this. See https://github.com/angular/angular.js/issues/263. Depending on what you're doing you can use a boolean to just not going into the body of the loop. Something like:

var keepGoing = true;
angular.forEach([0,1,2], function(count){
  if(keepGoing) {
    if(count == 1){
      keepGoing = false;
    }
  }
});

Here's another way of doing it:

function isPalin(str) {
  str = str.replace(/\W/g,'').toLowerCase();
  return(str==str.split('').reverse().join(''));
}

The method described in the accepted answer didn't work for me even after applying changes mentioned in its comments. But the below simple code worked:

import matplotlib.pyplot as plt
plt.imsave(filename, np_array, cmap='Greys')

np_array could be either a 2D array with values from 0..1 floats o2 0..255 uint8, and in that case it needs cmap. For 3D arrays, cmap will be ignored.

I faced similar problem on windows server 2012 STD 64 bit , my problem is resolved after updating windows with all available windows updates.

The simple way to do so is :

Attr function (since jQuery version 1.0)

$("a").attr("href", "https://stackoverflow.com/") 

or

Prop function (since jQuery version 1.6)

$("a").prop("href", "https://stackoverflow.com/")

Also, the advantage of above way is that if selector selects a single anchor, it will update that anchor only and if selector returns a group of anchor, it will update the specific group through one statement only.

Now, there are lot of ways to identify exact anchor or group of anchors:

Quite Simple Ones:

1. Select anchor through tag name : $("a")
2. Select anchor through index: $("a:eq(0)")
3. Select anchor for specific classes (as in this class only anchors with class active) : $("a.active")
4. Selecting anchors with specific ID (here in example profileLink ID) : $("a#proileLink")
5. Selecting first anchor href: $("a:first")

More useful ones:

6. Selecting all elements with href attribute : $("[href]")
7. Selecting all anchors with specific href: $("a[href='www.stackoverflow.com']")
8. Selecting all anchors not having specific href: $("a[href!='www.stackoverflow.com']")
9. Selecting all anchors with href containing specific URL: $("a[href*='www.stackoverflow.com']")
10. Selecting all anchors with href starting with specific URL: $("a[href^='www.stackoverflow.com']")
11. Selecting all anchors with href ending with specific URL: $("a[href$='www.stackoverflow.com']")

Now, if you want to amend specific URLs, you can do that as:

For instance if you want to add proxy website for all the URLs going to google.com, you can implement it as follows:

$("a[href^='http://www.google.com']")
   .each(function()
   { 
      this.href = this.href.replace(/http:\/\/www.google.com\//gi, function (x) {
        return "http://proxywebsite.com/?query="+encodeURIComponent(x);
    });
   });

The most robust mechanism for listing all classes in a given package is currently ClassGraph, because it handles the widest possible array of classpath specification mechanisms, including the new JPMS module system. (I am the author.)

List<String> classNames;
try (ScanResult scanResult = new ClassGraph().whitelistPackages("my.package")
        .enableClassInfo().scan()) {
    classNames = scanResult.getAllClasses().getNames();
}

With arrow:

>>> import arrow
>>> arrow.now().isoformat()
'2015-04-17T06:36:49.463207-05:00'
>>> arrow.utcnow().isoformat()
'2015-04-17T11:37:17.042330+00:00'

Try one of these:

1. Use column alias:

   ORDER BY RadioServiceCodeId,RadioService

2. Use column position:

   ORDER BY 1,2

You can only order by columns that actually appear in the result of the DISTINCT query - the underlying data isn't available for ordering on.

As @Ofer said, when you are using another libraries or modules, you should import all of them inside the if __name__ == '__main__':

So, in my case, ended like this:

if __name__ == '__main__':       
    import librosa
    import os
    import pandas as pd
    run_my_program()

For Windows HTTP, you can't beat Fiddler. You can use it as a reverse proxy for port-forwarding on a web server. It doesn't necessarily need IE, either. It can use other clients.

When I'd like to view incoming connections from our application servers to the database I use the following command:

SELECT username FROM v$session 
WHERE username IS NOT NULL 
ORDER BY username ASC;

Simple, but effective.

To add to the above answers, there's a good article: Useful JVM Flags – Part 8 (GC Logging) by Patrick Peschlow.

A brief excerpt:

The flag -XX:+PrintGC (or the alias -verbose:gc) activates the “simple” GC logging mode

By default the GC log is written to stdout. With -Xloggc:<file> we may instead specify an output file. Note that this flag implicitly sets -XX:+PrintGC and -XX:+PrintGCTimeStamps as well.

If we use -XX:+PrintGCDetails instead of -XX:+PrintGC, we activate the “detailed” GC logging mode which differs depending on the GC algorithm used.

With -XX:+PrintGCTimeStamps a timestamp reflecting the real time passed in seconds since JVM start is added to every line.

If we specify -XX:+PrintGCDateStamps each line starts with the absolute date and time.

That is the parent folder of bin which contains tomcat.exe file:

CATALINA_HOME='C:\Program Files\Apache Software Foundation\Tomcat 6.0'

CATALINA_BASE is the same as CATALINA_HOME.

A note to this old question:

My reset.css had set border-spacing: 0, causing the corners to get cut off. I had to set it to 3px for my radius to work properly (value will depend on the radius in question).

With gawk , you can use match function:

    x="hey there how are you"
    echo "$x" |awk --re-interval '{match($0,/(.{4})how(.{4})/,a);print a[1],a[2]}'
    ere   are

If you are ok with perl, more flexible solution : Following will print three characters before the pattern followed by actual pattern and then 5 character after the pattern.

echo hey there how are you |perl -lne 'print "$1$2$3" if /(.{3})(there)(.{5})/'
ey there how

This can also be applied to words instead of just characters.Following will print one word before the actual matching string.

echo hey there how are you |perl -lne 'print $1 if /(\w+) there/'
hey

Following will print one word after the pattern:

echo hey there how are you |perl -lne 'print $2 if /(\w+) there (\w+)/'
how

Following will print one word before the pattern , then the actual word and then one word after the pattern:

echo hey there how are you |perl -lne 'print "$1$2$3" if /(\w+)( there )(\w+)/'
hey there how

You can do just:

var regex = /^[1-9]\d{0,2}$/g
regex.test('2') // outputs true

I would also look at using Java Concurrency if you want alternatives. Some of the functionality provided in the Java Concurrency package offer a higher level of abstraction then using the Thread class directly and provide more functionality as a result.

For your specific case what your doing is quite reasonable however is the order of the printing of these numbers important? Do you want evens before odds? These kinds of questions would better indicate the design that most suits your needs.

From your code example, it looks like Array.prototype.find is what you are looking for: Array.prototype.find() and Array.prototype.findIndex()

[1, 2, 3].find(function(el) {
    return el === 2;
}); // returns 2

Seems like a lot of work for something xargs already does. Looking back through this thread, I'm guessing the slowness with xargs that you experienced is because the original answer used xargs -n 1 when it didn't really need to.

This is equivalent to your method one except that xargs automatically deals with the maximum command line length:

git tag | sorting_processing_etc | xargs git push --delete origin

xargs can run processes in parallel too. Method 2 with xargs:

git tag | sorting_processing_etc | xargs -P 5 -n 100 git push --delete origin

The above uses a maximum of 5 processes to handle a maximum of 100 arguments in each process. You can experiment with the arguments to find what works best for your needs.

You should set a fixed value to your span's line-height property:

.float, .twoline {
    line-height: 100px;
}

If you have data that has HTML tags and you want to display it so that a person can SEE the tags, use HttpServerUtility::HtmlEncode.

If you have data that has HTML tags in it and you want the user to see the tags rendered, then display the text as is. If the text represents an entire web page, use an IFRAME for it.

If you have data that has HTML tags and you want to strip out the tags and just display the unformatted text, use a regular expression.

HTML:

<div id="left"></div>
<div id="content">
        <textarea cols="2" rows="10" id="rules"></textarea>
</div>

CSS:

body{
    width:100%;
    border:1px solid black;
    border-radius:5px;

}
#left{
    width:20%;
height:400px;
    float:left;
    border: 1px solid black;
    display:block;
}
#content{
    width:78%;
    height:400px;
    float:left;
    border:1px solid black;
    text-align:center;
}
textarea
{
   margin-top:100px;
    width:98%;
}

DEMO: HERE

You can't guarantee line number consistency with code, especially if it is compiled for release. I would not recommend using line numbers for that purpose anyway, it would be better to give a payload of the place where the exception was raised (the trivial method being to set the message to include the details of the method call).

You might like to look at exception enrichment as a technique to improve exception handling http://tutorials.jenkov.com/java-exception-handling/exception-enrichment.html

Use -regex not -name, and be aware that the regex matches against what find would print, e.g. "/home/test/test.log" not "test.log"

Now, this seems to work:

$('#example').DataTable({
  "info": false
});

it hides that div, altogether

staticmethod objects apparently have a __func__ attribute storing the original raw function (makes sense that they had to). So this will work:

class Klass(object):

    @staticmethod  # use as decorator
    def stat_func():
        return 42

    _ANS = stat_func.__func__()  # call the staticmethod

    def method(self):
        ret = Klass.stat_func()
        return ret

As an aside, though I suspected that a staticmethod object had some sort of attribute storing the original function, I had no idea of the specifics. In the spirit of teaching someone to fish rather than giving them a fish, this is what I did to investigate and find that out (a C&P from my Python session):

>>> class Foo(object):
...     @staticmethod
...     def foo():
...         return 3
...     global z
...     z = foo

>>> z
<staticmethod object at 0x0000000002E40558>
>>> Foo.foo
<function foo at 0x0000000002E3CBA8>
>>> dir(z)
['__class__', '__delattr__', '__doc__', '__format__', '__func__', '__get__', '__getattribute__', '__hash__', '__init__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__']
>>> z.__func__
<function foo at 0x0000000002E3CBA8>

Similar sorts of digging in an interactive session (dir is very helpful) can often solve these sorts of question very quickly.

Please check if you have the following entries in the element of your pom.xml especially the jdk.version because switching to an installed jre did not fix me the similar error.

<properties>
    <jdk.version>1.7</jdk.version>
    <spring.version>4.1.1.RELEASE</spring.version>
    <jstl.version>1.2</jstl.version>
    <junit.version>4.11</junit.version>
</properties>

The following code returns the wanted "folder" as Path regardless of if it is inside a jar or not.

  private Path getFolderPath() throws URISyntaxException, IOException {
    URI uri = getClass().getClassLoader().getResource("folder").toURI();
    if ("jar".equals(uri.getScheme())) {
      FileSystem fileSystem = FileSystems.newFileSystem(uri, Collections.emptyMap(), null);
      return fileSystem.getPath("path/to/folder/inside/jar");
    } else {
      return Paths.get(uri);
    }
  }

Requires java 7+.

The shortest way, I think, is the following:

import struct
val = 0x11223344
val = struct.unpack("<I", struct.pack(">I", val))[0]
print "%08x" % val

This converts an integer to a byte-swapped integer.

This topic is discussed at CProgramming.com:
https://www.cprogramming.com/compilingandlinking.html

Here is what the author there wrote:

Compiling isn't quite the same as creating an executable file! Instead, creating an executable is a multistage process divided into two components: compilation and linking. In reality, even if a program "compiles fine" it might not actually work because of errors during the linking phase. The total process of going from source code files to an executable might better be referred to as a build.

Compilation

Compilation refers to the processing of source code files (.c, .cc, or .cpp) and the creation of an 'object' file. This step doesn't create anything the user can actually run. Instead, the compiler merely produces the machine language instructions that correspond to the source code file that was compiled. For instance, if you compile (but don't link) three separate files, you will have three object files created as output, each with the name .o or .obj (the extension will depend on your compiler). Each of these files contains a translation of your source code file into a machine language file -- but you can't run them yet! You need to turn them into executables your operating system can use. That's where the linker comes in.

Linking

Linking refers to the creation of a single executable file from multiple object files. In this step, it is common that the linker will complain about undefined functions (commonly, main itself). During compilation, if the compiler could not find the definition for a particular function, it would just assume that the function was defined in another file. If this isn't the case, there's no way the compiler would know -- it doesn't look at the contents of more than one file at a time. The linker, on the other hand, may look at multiple files and try to find references for the functions that weren't mentioned.

You might ask why there are separate compilation and linking steps. First, it's probably easier to implement things that way. The compiler does its thing, and the linker does its thing -- by keeping the functions separate, the complexity of the program is reduced. Another (more obvious) advantage is that this allows the creation of large programs without having to redo the compilation step every time a file is changed. Instead, using so called "conditional compilation", it is necessary to compile only those source files that have changed; for the rest, the object files are sufficient input for the linker. Finally, this makes it simple to implement libraries of pre-compiled code: just create object files and link them just like any other object file. (The fact that each file is compiled separately from information contained in other files, incidentally, is called the "separate compilation model".)

To get the full benefits of condition compilation, it's probably easier to get a program to help you than to try and remember which files you've changed since you last compiled. (You could, of course, just recompile every file that has a timestamp greater than the timestamp of the corresponding object file.) If you're working with an integrated development environment (IDE) it may already take care of this for you. If you're using command line tools, there's a nifty utility called make that comes with most *nix distributions. Along with conditional compilation, it has several other nice features for programming, such as allowing different compilations of your program -- for instance, if you have a version producing verbose output for debugging.

Knowing the difference between the compilation phase and the link phase can make it easier to hunt for bugs. Compiler errors are usually syntactic in nature -- a missing semicolon, an extra parenthesis. Linking errors usually have to do with missing or multiple definitions. If you get an error that a function or variable is defined multiple times from the linker, that's a good indication that the error is that two of your source code files have the same function or variable.

You could build a Column/Row with Flexible or Expanded children that have flex values that add up to the percentages you want.

You may also find the AspectRatio widget useful.

The operators && and || are short-circuiting, meaning they will not evaluate their right-hand expression if the value of the left-hand expression is enough to determine the result.

If you don't have the source code and API documentation, the machine code is all there is, you need to disassemble the dll library using something like IDA Pro , another option is use the trial version of PE Explorer.

PE Explorer provides a Disassembler. There is only one way to figure out the parameters: run the disassembler and read the disassembly output. Unfortunately, this task of reverse engineering the interface cannot be automated.

PE Explorer comes bundled with descriptions for 39 various libraries, including the core Windows® operating system libraries (eg. KERNEL32, GDI32, USER32, SHELL32, WSOCK32), key graphics libraries (DDRAW, OPENGL32) and more.

_{(source: heaventools.com)}

You've got a couple regexes now which will do what you want, so that's adequately covered.

What hasn't been mentioned is why your attempt won't work: Inside a character class, $ (as well as ^, ., and /) has no special meaning, so [/$] matches either a literal / or a literal $ rather than terminating the regex (/) or matching end-of-line ($).

As per the DOM structure you can use below code:

var x = document.getElementById('mySelect');
     var txt = "";
     var val = "";
     for (var i = 0; i < x.length; i++) {
         txt +=x[i].text + ",";
         val +=x[i].value + ",";
      }

If you create a new database it's good to create user with permissions only for this database (if anything goes wrong you won't compromise root user login and password). So everything together will look like this:

mysql -u base_user -pbase_user_pass -e "create database new_db; GRANT ALL PRIVILEGES ON new_db.* TO new_db_user@localhost IDENTIFIED BY 'new_db_user_pass'"

Where:
base_user is the name for user with all privileges (probably the root)
base_user_pass it's the password for base_user (lack of space between -p and base_user_pass is important)
new_db is name for newly created database
new_db_user is name for the new user with access only for new_db
new_db_user_pass it's the password for new_db_user

static before a global variable means that this variable is not accessible from outside the compilation module where it is defined.

E.g. imagine that you want to access a variable in another module:

foo.c

int var; // a global variable that can be accessed from another module
// static int var; means that var is local to the module only.
...

bar.c

extern int var; // use the variable in foo.c
...

Now if you declare var to be static you can't access it from anywhere but the module where foo.c is compiled into.

Note, that a module is the current source file, plus all included files. i.e. you have to compile those files separately, then link them together.

EDIT: This answer was submitted before the OP's jsFiddle example was posted in question. See second answer for response to that jsFiddle.

Here is an example of how it could work:

Working jsFiddle Demo

HTML:

<div id="someDiv">
    Once upon a midnight dreary
    <br>While I pondered weak and weary
    <br>Over many a quaint and curious
    <br>Volume of forgotten lore.
</div>
Type new text here:<br>
<input type="text" id="replacementtext" />
<input type="button" id="mybutt" value="Swap" />

<input type="hidden" id="vault" />

javascript/jQuery:

//Declare persistent vars outside function
var savText, newText, myState = 0;

$('#mybutt').click(function(){
    if (myState==0){
        savText = $('#someDiv').html(); //save poem data from DIV
        newText = $('#replacementtext').val(); //save data from input field
        $('#replacementtext').val(''); //clear input field
        $('#someDiv').html( newText ); //replace poem with insert field data
        myState = 1; //remember swap has been done once
    } else {
        $('#someDiv').html(savText);
        $('#replacementtext').val(newText); //replace contents
        myState = 0;
    }
});

Just for the sake of completeness I want to provide some implementation. Generally speaking Regex is an expensive approach, especially if the string is large (which happens when transferring large files). The following approach tries the fastest ways of detection first.

public static class HelperExtensions {
    // Characters that are used in base64 strings.
    private static Char[] Base64Chars = new[] { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/' };
    /// <summary>
    /// Extension method to test whether the value is a base64 string
    /// </summary>
    /// <param name="value">Value to test</param>
    /// <returns>Boolean value, true if the string is base64, otherwise false</returns>
    public static Boolean IsBase64String(this String value) {

        // The quickest test. If the value is null or is equal to 0 it is not base64
        // Base64 string's length is always divisible by four, i.e. 8, 16, 20 etc. 
        // If it is not you can return false. Quite effective
        // Further, if it meets the above criterias, then test for spaces.
        // If it contains spaces, it is not base64
        if (value == null || value.Length == 0 || value.Length % 4 != 0
            || value.Contains(' ') || value.Contains('\t') || value.Contains('\r') || value.Contains('\n'))
            return false;

        // 98% of all non base64 values are invalidated by this time.
        var index = value.Length - 1;

        // if there is padding step back
        if (value[index] == '=')
            index--;

        // if there are two padding chars step back a second time
        if (value[index] == '=')
            index--;

        // Now traverse over characters
        // You should note that I'm not creating any copy of the existing strings, 
        // assuming that they may be quite large
        for (var i = 0; i <= index; i++) 
            // If any of the character is not from the allowed list
            if (!Base64Chars.Contains(value[i]))
                // return false
                return false;

        // If we got here, then the value is a valid base64 string
        return true;
    }
}

EDIT

As suggested by Sam, you can also change the source code slightly. He provides a better performing approach for the last step of tests. The routine

    private static Boolean IsInvalid(char value) {
        var intValue = (Int32)value;

        // 1 - 9
        if (intValue >= 48 && intValue <= 57) 
            return false;

        // A - Z
        if (intValue >= 65 && intValue <= 90) 
            return false;

        // a - z
        if (intValue >= 97 && intValue <= 122) 
            return false;

        // + or /
        return intValue != 43 && intValue != 47;
    } 

can be used to replace if (!Base64Chars.Contains(value[i])) line with if (IsInvalid(value[i]))

The complete source code with enhancements from Sam will look like this (removed comments for clarity)

public static class HelperExtensions {
    public static Boolean IsBase64String(this String value) {
        if (value == null || value.Length == 0 || value.Length % 4 != 0
            || value.Contains(' ') || value.Contains('\t') || value.Contains('\r') || value.Contains('\n'))
            return false;
        var index = value.Length - 1;
        if (value[index] == '=')
            index--;
        if (value[index] == '=')
            index--;
        for (var i = 0; i <= index; i++)
            if (IsInvalid(value[i]))
                return false;
        return true;
    }
    // Make it private as there is the name makes no sense for an outside caller
    private static Boolean IsInvalid(char value) {
        var intValue = (Int32)value;
        if (intValue >= 48 && intValue <= 57)
            return false;
        if (intValue >= 65 && intValue <= 90)
            return false;
        if (intValue >= 97 && intValue <= 122)
            return false;
        return intValue != 43 && intValue != 47;
    }
}

Direct conversion from jks to pem file using the keytool

keytool -exportcert -alias selfsigned -keypass password -keystore test-user.jks -rfc -file test-user.pem

First, a basic truth about PHP.

PHP was not designed to explicitly give you a pure REST (GET, POST, PUT, PATCH, DELETE) like interface for handling HTTP requests.

However, the $_SERVER, $_COOKIE, $_POST, $_GET, and $_FILES superglobals, and the function filter_input_array() are very useful for the average person's / layman's needs.

The number one hidden advantage of $_POST (and $_GET) is that your input data is url-decoded automatically by PHP. You never even think about having to do it, especially for query string parameters within a standard GET request, or HTTP body data submitted with a POST request.

Other HTTP Request Methods

Those studying the underlying HTTP protocol and its various request methods come to understand that there are many HTTP request methods, including the often referenced PUT, PATCH (not used in Google's Apigee), and DELETE.

In PHP, there are no superglobals or input filter functions for getting HTTP request body data when POST is not used. What are disciples of Roy Fielding to do? ;-)

However, then you learn more ...

That being said, as you advance in your PHP programming knowledge and want to use JavaScript's XmlHttpRequest object (jQuery for some), you come to see the limitation of this scheme.

$_POST limits you to the use of two media types in the HTTP Content-Type header:

1. application/x-www-form-urlencoded, and
2. multipart/form-data

Thus, if you want to send data values to PHP on the server, and have it show up in the $_POST superglobal, then you must urlencode it on the client-side and send said data as key/value pairs--an inconvenient step for novices (especially when trying to figure out if different parts of the URL require different forms of urlencoding: normal, raw, etc..).

For all you jQuery users, the $.ajax() method is converting your JSON to URL encoded key/value pairs before transmitting them to the server. You can override this behavior by setting processData: false. Just read the $.ajax() documentation, and don't forget to send the correct media type in the Content-Type header.

php://input, but ...

Even if you use php://input instead of $_POST for your HTTP POST request body data, it will not work with an HTTP Content-Type of multipart/form-data This is the content type that you use on an HTML form when you want to allow file uploads!

<form enctype="multipart/form-data" accept-charset="utf-8" action="post">
    <input type="file" name="resume">
</form>

Therefore, in traditional PHP, to deal with a diversity of content types from an HTTP POST request, you will learn to use $_POST or filter_input_array(POST), $_FILES, and php://input. There is no way to just use one, universal input source for HTTP POST requests in PHP.

You cannot get files through $_POST, filter_input_array(POST), or php://input, and you cannot get JSON/XML/YAML in either filter_input_array(POST) or $_POST.

PHP Manual: php://input

php://input is a read-only stream that allows you to read raw data from the request body...php://input is not available with enctype="multipart/form-data".

PHP Frameworks to the rescue?

PHP frameworks like Codeigniter 4 and Laravel use a facade to provide a cleaner interface (IncomingRequest or Request objects) to the above. This is why professional PHP developers use frameworks instead of raw PHP.

Of course, if you like to program, you can devise your own facade object to provide what frameworks do. It is because I have taken time to investigate this issue that I am able to write this answer.

URL encoding? What the heck!!!???

Typically, if you are doing a normal, synchronous (when the entire page redraws) HTTP requests with an HTML form, the user-agent (web browser) will urlencode your form data for you. If you want to do an asynchronous HTTP requests using the XmlHttpRequest object, then you must fashion a urlencoded string and send it, if you want that data to show up in the $_POST superglobal.

How in touch are you with JavaScript? :-)

Converting from a JavaScript array or object to a urlencoded string bothers many developers (even with new APIs like Form Data). They would much rather just be able to send JSON, and it would be more efficient for the client code to do so.

Remember (wink, wink), the average web developer does not learn to use the XmlHttpRequest object directly, global functions, string functions, array functions, and regular expressions like you and I ;-). Urlencoding for them is a nightmare. ;-)

PHP, what gives?

PHP's lack of intuitive XML and JSON handling turns many people off. You would think it would be part of PHP by now (sigh).

So many media types (MIME types in the past)

XML, JSON, and YAML all have media types that can be put into an HTTP Content-Type header.

• application/xml
• applicaiton/json
• application/yaml (although IANA has no official designation listed)

Look how many media-types (formerly, MIME types) are defined by IANA.

Look how many HTTP headers there are.

php://input or bust

Using the php://input stream allows you to circumvent the baby-sitting / hand holding level of abstraction that PHP has forced on the world. :-) With great power comes great responsibility!

Now, before you deal with data values streamed through php://input, you should / must do a few things.

1. Determine if the correct HTTP method has been indicated (GET, POST, PUT, PATCH, DELETE, ...)
2. Determine if the HTTP Content-Type header has been transmitted.
3. Determine if the value for the Content-Type is the desired media type.
4. Determine if the data sent is well formed XML / JSON / YAML / etc.
5. If necessary, convert the data to a PHP datatype: array or object.
6. If any of these basic checks or conversions fails, throw an exception!

What about the character encoding?

AH, HA! Yes, you might want the data stream being sent into your application to be UTF-8 encoded, but how can you know if it is or not?

Two critical problems.

1. You do not know how much data is coming through php://input.
2. You do not know for certain the current encoding of the data stream.

Are you going to attempt to handle stream data without knowing how much is there first? That is a terrible idea. You cannot rely exclusively on the HTTP Content-Length header for guidance on the size of streamed input because it can be spoofed.

You are going to need a:

1. Stream size detection algorithm.
2. Application defined stream size limits (Apache / Nginx / PHP limits may be too broad).

Are you going to attempt to convert stream data to UTF-8 without knowing the current encoding of the stream? How? The iconv stream filter (iconv stream filter example) seems to want a starting and ending encoding, like this.

'convert.iconv.ISO-8859-1/UTF-8'

Thus, if you are conscientious, you will need:

1. Stream encoding detection algorithm.
2. Dynamic / runtime stream filter definition algorithm (because you cannot know the starting encoding a priori).

(Update: 'convert.iconv.UTF-8/UTF-8' will force everything to UTF-8, but you still have to account for characters that the iconv library might not know how to translate. In other words, you have to some how define what action to take when a character cannot be translated: 1) Insert a dummy character, 2) Fail / throw and exception).

You cannot rely exclusively on the HTTP Content-Encoding header, as this might indicate something like compression as in the following. This is not what you want to make a decision off of in regards to iconv.

Content-Encoding: gzip

Therefore, the general steps might be ...

Part I: HTTP Request Related

1. Determine if the correct HTTP method has been indicated (GET, POST, PUT, PATCH, DELETE, ...)
2. Determine if the HTTP Content-Type header has been transmitted.
3. Determine if the value for the Content-Type is the desired media type.

Part II: Stream Data Related

4. Determine the size of the input stream (optional, but recommended).
5. Determine the encoding of the input stream.
6. If necessary, convert the input stream to the desired character encoding (UTF-8).
7. If necessary, reverse any application level compression or encryption, and then repeat steps 4, 5, and 6.

Part III: Data Type Related

8. Determine if the data sent is well formed XML / JSON / YMAL / etc.

(Remember, the data can still be a URL encoded string which you must then parse and URL decode).

9. If necessary, convert the data to a PHP datatype: array or object.

Part IV: Data Value Related

10. Filter input data.

11. Validate input data.

Now do you see?

The $_POST superglobal, along with php.ini settings for limits on input, are simpler for the layman. However, dealing with character encoding is much more intuitive and efficient when using streams because there is no need to loop through superglobals (or arrays, generally) to check input values for the proper encoding.