I have also discovered that, when using JNI, invoking a Java method from C++, if you pass parameters to the invoked Java method in the wrong order, you will get this error when you attempt to use the parameters inside the called method (because they won't be the right type). I was initially taken aback that JNI does not do this checking for you as part of the class signature checking when you invoke the method, but I assume they don't do this kind of checking because you may be passing polymorphic parameters and they have to assume you know what you are doing.

Example C++ JNI Code:

void invokeFooDoSomething() {
    jobject javaFred = FredFactory::getFred(); // Get a Fred jobject
    jobject javaFoo = FooFactory::getFoo(); // Get a Foo jobject
    jobject javaBar = FooFactory::getBar(); // Get a Bar jobject
    jmethodID methodID = getDoSomethingMethodId() // Get the JNI Method ID


    jniEnv->CallVoidMethod(javaFoo,
                           methodID,
                           javaFred, // Woops!  I switched the Fred and Bar parameters!
                           javaBar);

    // << Insert error handling code here to discover the JNI Exception >>
    //  ... This is where the IncompatibleClassChangeError will show up.
}

Example Java Code:

class Bar { ... }

class Fred {
    public int size() { ... }
} 

class Foo {
    public void doSomething(Fred aFred, Bar anotherObject) {
        if (name.size() > 0) { // Will throw a cryptic java.lang.IncompatibleClassChangeError
            // Do some stuff...
        }
    }
}

The subprocess call is a very literal-minded system call. it can be used for any generic process...hence does not know what to do with a Python script automatically.

Try

call ('python somescript.py')

If that doesn't work, you might want to try an absolute path, and/or check permissions on your Python script...the typical fun stuff.

if(strcmp(aString, bString) == 0){
    //strings are the same
}

godspeed

I claimed 3.5gb space in ubuntu AWS through this.

clean docker

docker stop $(docker ps -qa) && docker system prune -af --volumes

build again

docker build .

docker-compose build

docker-compose up

Short Answer

If the goal is to create a grid with equal height rows, where the tallest cell in the grid sets the height for all rows, here's a quick and simple solution:

• Set the container to grid-auto-rows: 1fr

How it works

Grid Layout provides a unit for establishing flexible lengths in a grid container. This is the fr unit. It is designed to distribute free space in the container and is somewhat analogous to the flex-grow property in flexbox.

If you set all rows in a grid container to 1fr, let's say like this:

grid-auto-rows: 1fr;

... then all rows will be equal height.

It doesn't really make sense off-the-bat because fr is supposed to distribute free space. And if several rows have content with different heights, then when the space is distributed, some rows would be proportionally smaller and taller.

Except, buried deep in the grid spec is this little nugget:

7.2.3. Flexible Lengths: the fr unit

...

When the available space is infinite (which happens when the grid container’s width or height is indefinite), flex-sized (fr) grid tracks are sized to their contents while retaining their respective proportions.

The used size of each flex-sized grid track is computed by determining the max-content size of each flex-sized grid track and dividing that size by the respective flex factor to determine a “hypothetical 1fr size”.

The maximum of those is used as the resolved 1fr length (the flex fraction), which is then multiplied by each grid track’s flex factor to determine its final size.

So, if I'm reading this correctly, when dealing with a dynamically-sized grid (e.g., the height is indefinite), grid tracks (rows, in this case) are sized to their contents.

The height of each row is determined by the tallest (max-content) grid item.

The maximum height of those rows becomes the length of 1fr.

That's how 1fr creates equal height rows in a grid container.

Why flexbox isn't an option

As noted in the question, equal height rows are not possible with flexbox.

Flex items can be equal height on the same row, but not across multiple rows.

This behavior is defined in the flexbox spec:

6. Flex Lines

In a multi-line flex container, the cross size of each line is the minimum size necessary to contain the flex items on the line.

In other words, when there are multiple lines in a row-based flex container, the height of each line (the "cross size") is the minimum height necessary to contain the flex items on the line.

Some gotchas to watch out for:

If you double-click the batch file %0 will be surrounded by quotes. For example, if you save this file as c:\test.bat:

@echo %0
@pause

Double-clicking it will open a new command prompt with output:

"C:\test.bat"

But if you first open a command prompt and call it directly from that command prompt, %0 will refer to whatever you've typed. If you type test.batEnter, the output of %0 will have no quotes because you typed no quotes:

c:\>test.bat
test.bat

If you type testEnter, the output of %0 will have no extension too, because you typed no extension:

c:\>test
test

Same for tEsTEnter:

c:\>tEsT
tEsT

If you type "test"Enter, the output of %0 will have quotes (since you typed them) but no extension:

c:\>"test"
"test"

Lastly, if you type "C:\test.bat", the output would be exactly as though you've double clicked it:

c:\>"C:\test.bat"
"C:\test.bat"

Note that these are not all the possible values %0 can be because you can call the script from other folders:

c:\some_folder>/../teST.bAt
/../teST.bAt

All the examples shown above will also affect %~0, because the output of %~0 is simply the output of %0 minus quotes (if any).

You need to set your local branch to track the remote branch, which it won't do automatically if they have different capitalizations.

Try:

git branch --set-upstream downloadmanager origin/DownloadManager
git pull

UPDATE:

'--set-upstream' option is no longer supported.

git branch --set-upstream-to downloadmanager origin/DownloadManager
git pull

The list method index will return -1 if the item is not present, and will return the index of the item in the list if it is present. Alternatively in an if statement you can do the following:

if myItem in list:
    #do things

You can also check if an element is not in a list with the following if statement:

if myItem not in list:
    #do things

Code for any Browser:

function focusCampo(id){
    var inputField = document.getElementById(id);
    if (inputField != null && inputField.value.length != 0){
        if (inputField.createTextRange){
            var FieldRange = inputField.createTextRange();
            FieldRange.moveStart('character',inputField.value.length);
            FieldRange.collapse();
            FieldRange.select();
        }else if (inputField.selectionStart || inputField.selectionStart == '0') {
            var elemLen = inputField.value.length;
            inputField.selectionStart = elemLen;
            inputField.selectionEnd = elemLen;
            inputField.focus();
        }
    }else{
        inputField.focus();
    }
}

This should work:

public static final byte[] intToByteArray(int value) {
    return new byte[] {
            (byte)(value >>> 24),
            (byte)(value >>> 16),
            (byte)(value >>> 8),
            (byte)value};
}

Code taken from here.

Edit An even simpler solution is given in this thread.

There is a big difference. Tasks are scheduled on the ThreadPool and could even be executed synchronous if appropiate.

If you have a long running background work you should specify this by using the correct Task Option.

You should prefer Task Parallel Library over explicit thread handling, as it is more optimized. Also you have more features like Continuation.

This is a base service class (ServiceBase subclass) that can be subclassed to build a windows service that can be easily installed from the command line, without installutil.exe. This solution is derived from How to make a .NET Windows Service start right after the installation?, adding some code to get the service Type using the calling StackFrame

public abstract class InstallableServiceBase:ServiceBase
{

    /// <summary>
    /// returns Type of the calling service (subclass of InstallableServiceBase)
    /// </summary>
    /// <returns></returns>
    protected static Type getMyType()
    {
        Type t = typeof(InstallableServiceBase);
        MethodBase ret = MethodBase.GetCurrentMethod();
        Type retType = null;
        try
        {
            StackFrame[] frames = new StackTrace().GetFrames();
            foreach (StackFrame x in frames)
            {
                ret = x.GetMethod();

                Type t1 = ret.DeclaringType;

                if (t1 != null && !t1.Equals(t) &&   !t1.IsSubclassOf(t))
                {


                    break;
                }
                retType = t1;
            }
        }
        catch
        {

        }
        return retType;
    }
    /// <summary>
    /// returns AssemblyInstaller for the calling service (subclass of InstallableServiceBase)
    /// </summary>
    /// <returns></returns>
    protected static AssemblyInstaller GetInstaller()
    {
        Type t = getMyType();
        AssemblyInstaller installer = new AssemblyInstaller(
            t.Assembly, null);
        installer.UseNewContext = true;
        return installer;
    }

    private bool IsInstalled()
    {
        using (ServiceController controller =
            new ServiceController(this.ServiceName))
        {
            try
            {
                ServiceControllerStatus status = controller.Status;
            }
            catch
            {
                return false;
            }
            return true;
        }
    }

    private bool IsRunning()
    {
        using (ServiceController controller =
            new ServiceController(this.ServiceName))
        {
            if (!this.IsInstalled()) return false;
            return (controller.Status == ServiceControllerStatus.Running);
        }
    }
    /// <summary>
    /// protected method to be called by a public method within the real service
    /// ie: in the real service
    ///    new internal  void InstallService()
    ///    {
    ///        base.InstallService();
    ///    }
    /// </summary>
    protected void InstallService()
    {
        if (this.IsInstalled()) return;

        try
        {
            using (AssemblyInstaller installer = GetInstaller())
            {

                IDictionary state = new Hashtable();
                try
                {
                    installer.Install(state);
                    installer.Commit(state);
                }
                catch
                {
                    try
                    {
                        installer.Rollback(state);
                    }
                    catch { }
                    throw;
                }
            }
        }
        catch
        {
            throw;
        }
    }
    /// <summary>
    /// protected method to be called by a public method within the real service
    /// ie: in the real service
    ///    new internal  void UninstallService()
    ///    {
    ///        base.UninstallService();
    ///    }
    /// </summary>
    protected void UninstallService()
    {
        if (!this.IsInstalled()) return;

        if (this.IsRunning()) {
            this.StopService();
        }
        try
        {
            using (AssemblyInstaller installer = GetInstaller())
            {
                IDictionary state = new Hashtable();
                try
                {
                    installer.Uninstall(state);
                }
                catch
                {
                    throw;
                }
            }
        }
        catch
        {
            throw;
        }
    }

    private void StartService()
    {
        if (!this.IsInstalled()) return;

        using (ServiceController controller =
            new ServiceController(this.ServiceName))
        {
            try
            {
                if (controller.Status != ServiceControllerStatus.Running)
                {
                    controller.Start();
                    controller.WaitForStatus(ServiceControllerStatus.Running,
                        TimeSpan.FromSeconds(10));
                }
            }
            catch
            {
                throw;
            }
        }
    }

    private void StopService()
    {
        if (!this.IsInstalled()) return;
        using (ServiceController controller =
            new ServiceController(this.ServiceName))
        {
            try
            {
                if (controller.Status != ServiceControllerStatus.Stopped)
                {
                    controller.Stop();
                    controller.WaitForStatus(ServiceControllerStatus.Stopped,
                         TimeSpan.FromSeconds(10));
                }
            }
            catch
            {
                throw;
            }
        }
    }
}

All you have to do is to implement two public/internal methods in your real service:

    new internal  void InstallService()
    {
        base.InstallService();
    }
    new internal void UninstallService()
    {
        base.UninstallService();
    }

and then call them when you want to install the service:

    static void Main(string[] args)
    {
        if (Environment.UserInteractive)
        {
            MyService s1 = new MyService();
            if (args.Length == 1)
            {
                switch (args[0])
                {
                    case "-install":
                        s1.InstallService();

                        break;
                    case "-uninstall":

                        s1.UninstallService();
                        break;
                    default:
                        throw new NotImplementedException();
                }
            }


        }
        else {
            ServiceBase[] ServicesToRun;
            ServicesToRun = new ServiceBase[] 
            { 
                new MyService() 
            };
            ServiceBase.Run(MyService);            
        }

    }

Here are the complete list of scripts required to get rid of this problem. (Make sure the file exists at the given file path)

   <script src="@Url.Content("~/Scripts/jquery-1.8.2.js")" type="text/javascript">
    </script>
    <script src="@Url.Content("~/Scripts/jquery-ui-1.8.24.js")" type="text/javascript">
    </script>
    <script src="@Url.Content("~/Scripts/jquery.validate.js")" type="text/javascript">
    </script>
    <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.js")" type="text/javascript">
    </script>
    <script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.js")" type="text/javascript">
    </script>

and also include the below css link in _Layout.cshtml for a stylish popup.

<link rel="stylesheet" type="text/css" href="../../Content/themes/base/jquery-ui.css" />

If your question was "why doesn't this cmd script fragment work?" then the answer is that for /f iterates over lines. The delims split lines into fields, but you're only capturing the first field in %%P. There is no way to capture an arbitrary number of fields with a for /f loop.

You can change the name of the column, therefore instead of "COUNT(*)" you would have something meaningful. You will have to update your "RowCount.sql" script for that.

For example:

SQL> select count(*) as RecordCountFromTableOne from TableOne;

Will be displayed as:

RecordCountFromTableOne
-----------------------
           0

If you want to have space in the title, you need to enclose it in double quotes

SQL> select count(*) as "Record Count From Table One" from TableOne;

Will be displayed as:

Record Count From Table One
---------------------------
            0

To apply different classes when different expressions evaluate to true:

<div ng-class="{class1 : expression1, class2 : expression2}">
    Hello World!
</div>

To apply multiple classes when an expression holds true:

<!-- notice expression1 used twice -->
<div ng-class="{class1 : expression1, class2 : expression1}">
    Hello World!
</div>

or quite simply:

<div ng-class="{'class1 class2' : expression1}">
    Hello World!
</div>

Notice the single quotes surrounding css classes.

First take array of promises(promise array) and after resolve these promise array using Promise.all(promisearray).

var arry=['raju','ram','abdul','kruthika'];

var promiseArry=[];
for(var i=0;i<arry.length;i++) {
  promiseArry.push(dbFechFun(arry[i]));
}

Promise.all(promiseArry)
  .then((result) => {
    console.log(result);
  })
  .catch((error) => {
     console.log(error);
  });

function dbFetchFun(name) {
  // we need to return a  promise
  return db.find({name:name}); // any db operation we can write hear
}

You should define source code encoding, add this to the top of your script:

# -*- coding: utf-8 -*-

The reason why it works differently in console and in the IDE is, likely, because of different default encodings set. You can check it by running:

import sys
print sys.getdefaultencoding()

Also see:

• Why declare unicode by string in python?
• Changing default encoding of Python?
• Correct way to define Python source code encoding

<input type="text" disabled="disabled" />

See the W3C HTML Specification on the input tag for more information.

It works perfectly for me too.

<project>

.....

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <configuration>
                    <webXml>WebContent\WEB-INF\web.xml</webXml>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

For the <input> element there's the maxlength attribute:

<input type="text" id="Textbox" name="Textbox" maxlength="10" />

(by the way, the type is "text", not "textbox" as others are writing), however, you have to use javascript with <textarea>s. Either way the length should be checked on the server anyway.

find source/ -type f  | rsync -a --exclude-from - source/ target/

Copy dir only with associated permission and ownership

All Kafka brokers must be assigned a broker.id. On startup a broker will create an ephemeral node in Zookeeper with a path of /broker/ids/$id. As the node is ephemeral it will be removed as soon as the broker disconnects, e.g. by shutting down.

You can view the list of the ephemeral broker nodes like so:

echo dump | nc localhost 2181 | grep brokers

The ZooKeeper client interface exposes a number of commands; dump lists all the sessions and ephemeral nodes for the cluster.

Note, the above assumes:

• You're running ZooKeeper on the default port (2181) on localhost, and that localhost is the leader for the cluster
• Your zookeeper.connect Kafka config doesn't specify a chroot env for your Kafka cluster i.e. it's just host:port and not host:port/path

If your chart uses both fill and color aesthetics, you can remove the legend with:

+ guides(fill=FALSE, color=FALSE)

I understand that std::atomic<> makes an object atomic.

That's a matter of perspective... you can't apply it to arbitrary objects and have their operations become atomic, but the provided specialisations for (most) integral types and pointers can be used.

a = a + 12;

std::atomic<> does not (use template expressions to) simplify this to a single atomic operation, instead the operator T() const volatile noexcept member does an atomic load() of a, then twelve is added, and operator=(T t) noexcept does a store(t).

If you want to use standard Flask stuff - there's no way to avoid saving a temporary file if the uploaded file size is > 500kb. If it's smaller than 500kb - it will use "BytesIO", which stores the file content in memory, and if it's more than 500kb - it stores the contents in TemporaryFile() (as stated in the werkzeug documentation). In both cases your script will block until the entirety of uploaded file is received.

The easiest way to work around this that I have found is:

1) Create your own file-like IO class where you do all the processing of the incoming data

2) In your script, override Request class with your own:

class MyRequest( Request ):
  def _get_file_stream( self, total_content_length, content_type, filename=None, content_length=None ):
    return MyAwesomeIO( filename, 'w' )

3) Replace Flask's request_class with your own:

app.request_class = MyRequest

4) Go have some beer :)

I resolved the same issue with a recursive chown on the parent folder:

sudo chown -R postgres:postgres /home/my_user/export_folder

(my export being in /home/my_user/export_folder/export_1.csv)

• Full days between end of month and start of today, including the last day of the month:

  SELECT LAST_DAY (TRUNC(SysDate)) - TRUNC(SysDate) + 1 FROM dual
  

• Days between using exact time:

  SELECT SysDate - TO_DATE('2018-01-01','YYYY-MM-DD') FROM dual
  

This works well. It's a manager I've made to handle hold events. Has events for hold, and for when you let go.

function onUserHold(element, func, hold, clearfunc) {
    //var holdTime = 0;
    var holdTimeout;

    element.addEventListener('mousedown', function(e) {
        holdTimeout = setTimeout(function() {
            func();
            clearTimeout(holdTimeout);
            holdTime = 0;
        }, hold);
        //alert('UU');
    });

    element.addEventListener('mouseup', clearTime);
    element.addEventListener('mouseout', clearTime);

    function clearTime() {
        clearTimeout(holdTimeout);
        holdTime = 0;
        if(clearfunc) {
            clearfunc();
        }
    }
}

The element parameter is the one which you hold. The func parameter fires when it holds for a number of milliseconds specified by the parameter hold. The clearfunc param is optional and if it is given, it will get fired if the user lets go or leaves the element. You can also do some work-arounds to get the features you want. Enjoy! :)

If you are running Delphi, or other native compiled CGI, this solution will work:

1. As other pointed, go to IIS manager and click on the server name. Then click on the "ISAPI and CGI Restrictions" icon under the IIS header.

2. If you have everything allowed, it will still not work. You need to click on "Edit Feature Settings" in Actions (on the right side), and check "Allow unspecified CGI modules", or "Allow unspecified ISAPI modules" respectively.

3. Click OK

I've seen this error too when the code stopped at the line:

Dim myNode As MSXML2.IXMLDOMNode

I found out that I had to add "Microsoft XML, v6.0" via Tools > Preferences.

Then it worked for me.

Using PowerShell you can minimize from the same file without opening a new instance.

powershell -window minimized -command ""

Also -window hidden and -window normal is available to hide completely or restore.

source: https://stackoverflow.com/a/45061676/1178975

Interface and Abstract Class are the two different ways to achieve Abstraction in OOP Languages.

Interface provides 100% abstraction, i.e all methods are abstract.

Abstract class provides 0 to 100% abstraction, i.e it may have or may not have abstract methods.

We can use Interface when we want all the functionality of a type to be implemented by the client.

We can use Abstract Class when some common functionality can be provided by Abstract Class implementer and client will be given chance to implement what he needs actually.

var foo = 'somestring'; 

// bad example https://stackoverflow.com/questions/6484670/how-do-i-split-a-string-into-an-array-of-characters/38901550#38901550

var arr = foo.split(''); 
console.log(arr); // ["s", "o", "m", "e", "s", "t", "r", "i", "n", "g"]

// good example
var arr = Array.from(foo);
console.log(arr); // ["s", "o", "m", "e", "s", "t", "r", "i", "n", "g"]

// best
var arr = [...foo]
console.log(arr); // ["s", "o", "m", "e", "s", "t", "r", "i", "n", "g"]

In my case, there were rules for IIS URL Rewrite module but I didn't have that module installed. You should check your web.config if there are any modules included but not installed.

This should be fine:

const char* bool_cast(const bool b) {
    return b ? "true" : "false";
}

But, if you want to do it more C++-ish:

#include <iostream>
#include <string>
#include <sstream>
using namespace std;

string bool_cast(const bool b) {
    ostringstream ss;
    ss << boolalpha << b;
    return ss.str();
}

int main() {
    cout << bool_cast(true) << "\n";
    cout << bool_cast(false) << "\n";
}

The datepicker('setDate') sets the date in the datepicket not in the input.

You should add the date and set it in the input.

var date2 = $('.pickupDate').datepicker('getDate');
var nextDayDate = new Date();
nextDayDate.setDate(date2.getDate() + 1);
$('input').val(nextDayDate);

(This is paraphrased from the MS Access help files. I'm sure XL has something similar.) Basically, TimerInterval is a form-level property. Once set, use the sub Form_Timer to carry out your intended action.

Sub Form_Load()
    Me.TimerInterval = 1000 '1000 = 1 second
End Sub

Sub Form_Timer()
    'Do Stuff
End Sub

12000 elements is nothing in Python... and actually the number of elements can go as far as the Python interpreter has memory on your system.

Try this:

dt.Rows[RowNumber]["ColumnName"] = "Your value"

For example: if you want to add value 5 (number 5) to 1st row and column name "index" you would do this

dt.Rows[0]["index"] = 5;

I believe DataTable row starts with 0

You can use slice method in javascript array object

<div ng-repeat="item in items.slice(0, 4)">{{item}}</div>

Short n sweet

Here is a C function that handles positive OR negative integer OR fractional values for BOTH OPERANDS

#include <math.h>
float mod(float a, float N) {return a - N*floor(a/N);} //return in range [0, N)

This is surely the most elegant solution from a mathematical standpoint. However, I'm not sure if it is robust in handling integers. Sometimes floating point errors creep in when converting int -> fp -> int.

I am using this code for non-int s, and a separate function for int.

NOTE: need to trap N = 0!

Tester code:

#include <math.h>
#include <stdio.h>

float mod(float a, float N)
{
    float ret = a - N * floor (a / N);

    printf("%f.1 mod %f.1 = %f.1 \n", a, N, ret);

    return ret;
}

int main (char* argc, char** argv)
{
    printf ("fmodf(-10.2, 2.0) = %f.1  == FAIL! \n\n", fmodf(-10.2, 2.0));

    float x;
    x = mod(10.2f, 2.0f);
    x = mod(10.2f, -2.0f);
    x = mod(-10.2f, 2.0f);
    x = mod(-10.2f, -2.0f);

    return 0;
}

(Note: You can compile and run it straight out of CodePad: http://codepad.org/UOgEqAMA)

Output:

fmodf(-10.2, 2.0) = -0.20 == FAIL!

10.2 mod 2.0 = 0.2
10.2 mod -2.0 = -1.8
-10.2 mod 2.0 = 1.8
-10.2 mod -2.0 = -0.2

I had this problem using Eclipse and solved it as follows:

In the pylint folder (e.g. C:\Python26\Lib\site-packages\pylint), hold Shift, right-click and choose to open the windows command in that folder. Type:

lint.py --generate-rcfile > standard.rc

This creates the standard.rc configuration file. Open it in Notepad and under [MESSAGES CONTROL], uncomment disable= and add the message ID's you want to disable, e.g.:

disable=W0511, C0321

Save the file, and in Eclipse ? Window ? Preferences ? PyDev ? *pylint, in the arguments box, type:

--rcfile=C:\Python26\Lib\site-packages\pylint\standard.rc

Now it should work...

You can also add a comment at the top of your code that will be interpreted by Pylint:

# pylint: disable=C0321

Pylint message codes.

Adding e.g. --disable-ids=C0321 in the arguments box does not work.

All available Pylint messages are stored in the dictionary _messages, an attribute of an instance of the pylint.utils.MessagesHandlerMixIn class. When running Pylint with the argument --disable-ids=... (at least without a configuration file), this dictionary is initially empty, raising a KeyError exception within Pylint (pylint.utils.MessagesHandlerMixIn.check_message_id().

In Eclipse, you can see this error-message in the Pylint Console (windows* ? show view ? Console, select Pylint console from the console options besides the console icon.)

try using ConnectivityManager

ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    if (connectivity != null) {
        NetworkInfo[] info = connectivity.getAllNetworkInfo();
        if (info != null) {
            for (int i = 0; i < info.length; i++) {
                if (info[i].getState() == NetworkInfo.State.CONNECTED) {
                    return true;
                }
            }
        }
    }
 return false

Also Add permission to AndroidManifest.xml

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

Use a ternary operator:

echo '<option value="'.$value.'"'.($value=='United States' ? 'selected="selected"' : '').'>'.$value.'</option>';

And while you're at it, you could use printf to make your code more readable/manageable:

printf('<option value="%s" %s>%s</option>',
    $value,
    $value == 'United States' ? 'selected="selected"' : ''
    $value);

Here's one way:

CString str;
str.Format("%d", 5);

In your case, try _T("%d") or L"%d" rather than "%d"

The best answer is...

Don't use a regex

The expression in the accepted answer misses many cases. Among other things, URLs can have unicode characters in them. The regex you want is here, and after looking at it, you may conclude that you don't really want it after all. The most correct version is ten-thousand characters long.

Admittedly, if you were starting with plain, unstructured text with a bunch of URLs in it, then you might need that ten-thousand-character-long regex. But if your input is structured, use the structure. Your stated aim is to "extract the url, inside the anchor tag's href." Why use a ten-thousand-character-long regex when you can do something much simpler?

Parse the HTML instead

For many tasks, using Beautiful Soup will be far faster and easier to use:

>>> from bs4 import BeautifulSoup as Soup
>>> html = Soup(s, 'html.parser')           # Soup(s, 'lxml') if lxml is installed
>>> [a['href'] for a in html.find_all('a')]
['http://example.com', 'http://example2.com']

If you prefer not to use external tools, you can also directly use Python's own built-in HTML parsing library. Here's a really simple subclass of HTMLParser that does exactly what you want:

from html.parser import HTMLParser

class MyParser(HTMLParser):
    def __init__(self, output_list=None):
        HTMLParser.__init__(self)
        if output_list is None:
            self.output_list = []
        else:
            self.output_list = output_list
    def handle_starttag(self, tag, attrs):
        if tag == 'a':
            self.output_list.append(dict(attrs).get('href'))

Test:

>>> p = MyParser()
>>> p.feed(s)
>>> p.output_list
['http://example.com', 'http://example2.com']

You could even create a new method that accepts a string, calls feed, and returns output_list. This is a vastly more powerful and extensible way than regular expressions to extract information from html.

You are better off using dependency injection:

public class Globals {
    public int a;
    public int b;
}

public class UsesGlobals {
    private final Globals globals;
    public UsesGlobals(Globals globals) {
        this.globals = globals;
    }
}

I think you need a service that handle the authentication process (and its storage).

In this service you'll need some basic methods :

• isAuthenticated()
• login()
• logout()
• etc ...

This service should be injected in your controllers of each module :

• In your dashboard section, use this service to check if user is authenticated (service.isAuthenticated() method) . if not, redirect to /login
• In your login section, just use the form data to authenticate the user through your service.login() method

A good and robust example for this behavior is the project angular-app and specifically its security module which is based over the awesome HTTP Auth Interceptor Module

Hope this helps

toString is a function, not a property. You'll want this:

console.log(aa.toString());

Alternatively, use join to specify the separator (toString() === join(','))

console.log(aa.join(' and '));

If I recall correctly Twig doesn't support || and && operators, but requires or and and to be used respectively. I'd also use parentheses to denote the two statements more clearly although this isn't technically a requirement.

{%if ( fields | length > 0 ) or ( trans_fields | length > 0 ) %}

Expressions

Expressions can be used in {% blocks %} and ${ expressions }.

Operator    Description
==          Does the left expression equal the right expression?
+           Convert both arguments into a number and add them.
-           Convert both arguments into a number and substract them.
*           Convert both arguments into a number and multiply them.
/           Convert both arguments into a number and divide them.
%           Convert both arguments into a number and calculate the rest of the integer division.
~           Convert both arguments into a string and concatenate them.
or          True if the left or the right expression is true.
and         True if the left and the right expression is true.
not         Negate the expression.

For more complex operations, it may be best to wrap individual expressions in parentheses to avoid confusion:

{% if (foo and bar) or (fizz and (foo + bar == 3)) %}

Well, you could use @Lucas solution, but there's also another way.

 @Html.ActionLink("Update", "Update", *Your object value*, new { @class = "imgLink"})

Now, add this class on a CSS file or in your page:

.imgLink
{
  background: url(YourImage.png) no-repeat;
}

With that class, any link will have your desired image.

I know this has plenty of answers but since most of them are old (well, older), none is mentioning approach I grow very fond of really quick. In short:

Use functional components and hooks.

In longer:

Try to use as much functional components instead class ones especially for rendering, AND try to keep them as pure as possible (yes, data is dirty by default I know).

Two bluntly obvious benefits of functional components (there are more):

• Pureness or near pureness makes debugging so much easier
• Functional components remove the need for constructor boiler code

Quick proof for 2nd point - Isn't this absolutely disgusting?

constructor(props) {
        super(props);     
        this.toggle= this.toggle.bind(this);
        this.state = {
            details: false
        } 
    }  

If you are using functional components for more then rendering you are gonna need the second part of great duo - hooks. Why are they better then lifecycle methods, what else can they do and much more would take me a lot of space to cover so I recommend you to listen to the man himself: Dan preaching the hooks

In this case you need only two hooks:

A callback hook conveniently named useCallback. This way you are preventing the binding the function over and over when you re-render.

A state hook, called useState, for keeping the state despite entire component being function and executing in its entirety (yes, this is possible due to magic of hooks). Within that hook you will store the value of toggle.

If you read to this part you probably wanna see all I have talked about in action and applied to original problem. Here you go: Demo

For those of you that want only to glance the component and WTF is this about, here you are:

const Item = () => {

    // HOOKZ
  const [isVisible, setIsVisible] = React.useState('hidden');

  const toggle = React.useCallback(() => {
    setIsVisible(isVisible === 'visible' ? 'hidden': 'visible');
  }, [isVisible, setIsVisible]);

    // RENDER
  return (
  <React.Fragment>
    <div style={{visibility: isVisible}}>
        PLACEHOLDER MORE INFO
    </div>
    <button onClick={toggle}>Details</button>
  </React.Fragment>
  )
};

PS: I wrote this in case many people land here with similar problem. Hopefully, they will like what I have shown here, at least well enough to google it a bit more. This is NOT me saying other answers are wrong, this is me saying that since the time they have been written, there is another way (IMHO, a better one) of dealing with this.

You can use Calendar.getActualMaximum method:

Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.YEAR, year);
calendar.set(Calendar.MONTH, month);
int numDays = calendar.getActualMaximum(Calendar.DATE);

I found this on Microsoft Dev Center. It works correctly and ignores double-clicking in wrong places. As you see, the point is that an item gets selected before double-click event is triggered.

private void listView1_DoubleClick(object sender, EventArgs e)
{
    // user clicked an item of listview control
    if (listView1.SelectedItems.Count == 1)
    {
        //do what you need to do here            
    }
}

http://social.msdn.microsoft.com/forums/en-US/winforms/thread/588b1053-8a8f-44ab-8b44-2e42062fb663

I find that there's simpler solution compared to the accepted answer.

• Read the files using the HTML5 FileReader API with .readAsArrayBuffer
• Create a Blob with the file data and get its url with window.URL.createObjectURL(blob)
• Create new Image element and set it's src to the file blob url
• Send the image to the canvas. The canvas size is set to desired output size
• Get the scaled-down data back from canvas via canvas.toDataURL("image/jpeg",0.7) (set your own output format and quality)
• Attach new hidden inputs to the original form and transfer the dataURI images basically as normal text
• On backend, read the dataURI, decode from Base64, and save it

As per your question:

Is there a way to compress an image (mostly jpeg, png and gif) directly browser-side, before uploading it

My solution:

1. Create a blob with the file directly with URL.createObjectURL(inputFileElement.files[0]).

2. Same as accepted answer.

3. Same as accepted answer. Worth mentioning that, canvas size is necessary and use img.width and img.height to set canvas.width and canvas.height. Not img.clientWidth.

4. Get the scale-down image by canvas.toBlob(callbackfunction(blob){}, 'image/jpeg', 0.5). Setting 'image/jpg' has no effect. image/png is also supported. Make a new File object inside the callbackfunction body with let compressedImageBlob = new File([blob]).

5. Add new hidden inputs or send via javascript . Server doesn't have to decode anything.

Check https://javascript.info/binary for all information. I came up the solution after reading this chapter.

Code:

    <!DOCTYPE html>
    <html>
    <body>
    <form action="upload.php" method="post" enctype="multipart/form-data">
      Select image to upload:
      <input type="file" name="fileToUpload" id="fileToUpload" multiple>
      <input type="submit" value="Upload Image" name="submit">
    </form>
    </body>
    </html>

This code looks far less scary than the other answers..

Update:

One has to put everything inside img.onload. Otherwise canvas will not be able to get the image's width and height correctly as the time canvas is assigned.

    function upload(){
        var f = fileToUpload.files[0];
        var fileName = f.name.split('.')[0];
        var img = new Image();
        img.src = URL.createObjectURL(f);
        img.onload = function(){
            var canvas = document.createElement('canvas');
            canvas.width = img.width;
            canvas.height = img.height;
            var ctx = canvas.getContext('2d');
            ctx.drawImage(img, 0, 0);
            canvas.toBlob(function(blob){
                    console.info(blob.size);
                    var f2 = new File([blob], fileName + ".jpeg");
                    var xhr = new XMLHttpRequest();
                    var form = new FormData();
                    form.append("fileToUpload", f2);
                    xhr.open("POST", "upload.php");
                    xhr.send(form);
            }, 'image/jpeg', 0.5);
        }
    }

3.4MB .png file compression test with image/jpeg argument set.

    |0.9| 777KB |
    |0.8| 383KB |
    |0.7| 301KB |
    |0.6| 251KB |
    |0.5| 219kB |

And to add, you should also be able to do the same for ip6tables after running the systemctl mask firewalld command:

    systemctl start ip6tables.service
    systemctl enable ip6tables.service

I'm not sure if that is possible. The MSDN GetFiles reference says a search pattern, not a list of search patterns.

I might be inclined to fetch each list separately and "foreach" them into a final list.

Short answer: use time.clock() for timing in Python.

On *nix systems, clock() returns the processor time as a floating point number, expressed in seconds. On Windows, it returns the seconds elapsed since the first call to this function, as a floating point number.

time() returns the the seconds since the epoch, in UTC, as a floating point number. There is no guarantee that you will get a better precision that 1 second (even though time() returns a floating point number). Also note that if the system clock has been set back between two calls to this function, the second function call will return a lower value.

Better use $_SERVER['REQUEST_METHOD']:

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // …
}

Here multiple columns need to be converted. So, one approach i used is ..

for col_name in df.columns:
    if(df[col_name].dtype == 'object'):
        df[col_name]= df[col_name].astype('category')
        df[col_name] = df[col_name].cat.codes

This converts all string / object type columns to categorical. Then applies codes to each type of category.

Here you can access "set2" property following:

    var obj = {
        "set1": [1, 2, 3],
        "set2": [4, 5, 6, 7, 8],
        "set3": [9, 10, 11, 12]
    };

    var output = Object.keys(obj)[1];

Object.keys return all the keys of provided object as Array..

There are better ways to do this as explained by other posters. But if I want to stick to pure JS and ol' fashioned way then here it is:

var arr = [
    { key: 'foo', val: 'bar' },
    { key: 'hello', val: 'world' },
    { key: 'hello', val: 'universe' }
];

var map = {};
for (var i = 0; i < arr.length; i++) {
    var key = arr[i].key;
    var value = arr[i].val;

    if (key in map) {
        map[key].push(value);
    } else {
        map[key] = [value];
    }
}

console.log(map);

This construction is not allowed in SQL Server. An inline table-valued function can perform as a parameterized view, but is still not allowed to call an SP like this.

Here's some examples of using an SP and an inline TVF interchangeably - you'll see that the TVF is more flexible (it's basically more like a view than a function), so where an inline TVF can be used, they can be more re-eusable:

CREATE TABLE dbo.so916784 (
    num int
)
GO

INSERT INTO dbo.so916784 VALUES (0)
INSERT INTO dbo.so916784 VALUES (1)
INSERT INTO dbo.so916784 VALUES (2)
INSERT INTO dbo.so916784 VALUES (3)
INSERT INTO dbo.so916784 VALUES (4)
INSERT INTO dbo.so916784 VALUES (5)
INSERT INTO dbo.so916784 VALUES (6)
INSERT INTO dbo.so916784 VALUES (7)
INSERT INTO dbo.so916784 VALUES (8)
INSERT INTO dbo.so916784 VALUES (9)
GO

CREATE PROCEDURE dbo.usp_so916784 @mod AS int
AS 
BEGIN
    SELECT  *
    FROM    dbo.so916784
    WHERE   num % @mod = 0
END
GO

CREATE FUNCTION dbo.tvf_so916784 (@mod AS int)
RETURNS TABLE
    AS
RETURN
    (
     SELECT *
     FROM   dbo.so916784
     WHERE  num % @mod = 0
    )
GO    

EXEC dbo.usp_so916784 3
EXEC dbo.usp_so916784 4

SELECT * FROM dbo.tvf_so916784(3)    
SELECT * FROM dbo.tvf_so916784(4)

DROP FUNCTION dbo.tvf_so916784
DROP PROCEDURE dbo.usp_so916784
DROP TABLE dbo.so916784

Look at Compare-Object

Compare-Object $a1 $b1 | ForEach-Object { $_.InputObject }

Or if you would like to know where the object belongs to, then look at SideIndicator:

$a1=@(1,2,3,4,5,8)
$b1=@(1,2,3,4,5,6)
Compare-Object $a1 $b1

If there is no instance available then .class syntax is used to get the corresponding Class object for a class otherwise you can use getClass() method to get Class object. Since, there is no instance of primitive data type, we have to use .class syntax for primitive data types.

    package test;

    public class Test {
       public static void main(String[] args)
       {
          //there is no instance available for class Test, so use Test.class
          System.out.println("Test.class.getName() ::: " + Test.class.getName());

          // Now create an instance of class Test use getClass()
          Test testObj = new Test();
          System.out.println("testObj.getClass().getName() ::: " + testObj.getClass().getName());

          //For primitive type
          System.out.println("boolean.class.getName() ::: " + boolean.class.getName());
          System.out.println("int.class.getName() ::: " + int.class.getName());
          System.out.println("char.class.getName() ::: " + char.class.getName());
          System.out.println("long.class.getName() ::: " + long.class.getName());
       }
    }

This error raised up because you trying to update dict object by using a wrong sequence (list or tuple) structure.

cash_id.create(cr, uid, lines,context=None) trying to convert lines into dict object:

(0, 0, {
    'name': l.name,
    'date': l.date,
    'amount': l.amount,
    'type': l.type,
    'statement_id': exp.statement_id.id,
    'account_id': l.account_id.id,
    'account_analytic_id': l.analytic_account_id.id,
    'ref': l.ref,
    'note': l.note,
    'company_id': l.company_id.id
})

Remove the second zero from this tuple to properly convert it into a dict object.

To test it your self, try this into python shell:

>>> l=[(0,0,{'h':88})]
>>> a={}
>>> a.update(l)

Traceback (most recent call last):
  File "<pyshell#11>", line 1, in <module>
    a.update(l)
ValueError: dictionary update sequence element #0 has length 3; 2 is required

>>> l=[(0,{'h':88})]
>>> a.update(l)

$('input[type=text],select', '.sys');

for looping:

$('input[type=text],select', '.sys').each(function() {
   // code
});

This fiddle has both each and direct json. http://jsfiddle.net/streethawk707/a9ssja22/.

Below are the two ways of iterating over array. One is with direct json passing and another is naming the json array while passing to content holder.

Eg1: The below example is directly calling json key (data) inside small_data variable.

In html use the below code:

<div id="small-content-placeholder"></div>

The below can be placed in header or body of html:

<script id="small-template" type="text/x-handlebars-template">
    <table>
        <thead>
            <th>Username</th>
            <th>email</th>
        </thead>
        <tbody>
            {{#data}}
                <tr>
                    <td>{{username}}
                    </td>
                    <td>{{email}}</td>
                </tr>
            {{/data}}
        </tbody>
    </table>
</script>

The below one is on document ready:

var small_source   = $("#small-template").html();
var small_template = Handlebars.compile(small_source);

The below is the json:

var small_data = {
            data: [
                {username: "alan1", firstName: "Alan", lastName: "Johnson", email: "[email protected]" },
                {username: "alan2", firstName: "Alan", lastName: "Johnson", email: "[email protected]" }
            ]
        };

Finally attach the json to content holder:

$("#small-content-placeholder").html(small_template(small_data));

Eg2: Iteration using each.

Consider the below json.

var big_data = [
            {
                name: "users1",
                details: [
                    {username: "alan1", firstName: "Alan", lastName: "Johnson", email: "[email protected]" },
                    {username: "allison1", firstName: "Allison", lastName: "House", email: "[email protected]" },
                    {username: "ryan1", firstName: "Ryan", lastName: "Carson", email: "[email protected]" }
                  ]
            },
            {
                name: "users2",
                details: [
                    {username: "alan2", firstName: "Alan", lastName: "Johnson", email: "[email protected]" },
                    {username: "allison2", firstName: "Allison", lastName: "House", email: "[email protected]" },
                    {username: "ryan2", firstName: "Ryan", lastName: "Carson", email: "[email protected]" }
                  ]
            }
      ];

While passing the json to content holder just name it in this way:

$("#big-content-placeholder").html(big_template({big_data:big_data}));

And the template looks like :

<script id="big-template" type="text/x-handlebars-template">
    <table>
        <thead>
            <th>Username</th>
            <th>email</th>
        </thead>
        <tbody>
            {{#each big_data}}
                <tr>
                    <td>{{name}}
                            <ul>
                                {{#details}}
                                    <li>{{username}}</li>
                                    <li>{{email}}</li>
                                {{/details}}
                            </ul>
                    </td>
                    <td>{{email}}</td>
                </tr>
            {{/each}}
        </tbody>
    </table>
</script>

This has already been mentioned, but here is a way to place the code within a method:

    public static String getMonthName(int monthIndex) {
         return new DateFormatSymbols().getMonths()[monthIndex].toString();
    }

or if you wanted to create a better error than an ArrayIndexOutOfBoundsException:

    public static String getMonthName(int monthIndex) {
        //since this is zero based, 11 = December
        if (monthIndex < 0 || monthIndex > 11 ) {
            throw new IllegalArgumentException(monthIndex + " is not a valid month index.");
        }
        return new DateFormatSymbols().getMonths()[monthIndex].toString();
    }

One nice feature of the Immediate Window in Visual Studio is its ability to evaluate the return value of a method particularly if it is called by your client code but it is not part of a variable assignment. In Debug mode, as mentioned, you can interact with variables and execute expressions in memory which plays an important role in being able to do this.

For example, if you had a static method that returns the sum of two numbers such as:

private static int GetSum(int a, int b)
{
    return a + b;
}

Then in the Immediate Window you can type the following:

? GetSum(2, 4)
6

As you can seen, this works really well for static methods. However, if the method is non-static then you need to interact with a reference to the object the method belongs to.

For example, let’s say this is what your class looks like:

private class Foo
{
    public string GetMessage()
    {
        return "hello";
    }
}

If the object already exists in memory and it’s in scope, then you can call it in the Immediate Window as long as it has been instantiated before your current breakpoint (or, at least, before wherever the code is paused in debug mode):

? foo.GetMessage(); // object ‘foo’ already exists
"hello"

In addition, if you want to interact and test the method directly without relying on an existing instance in memory, then you can instantiate your own instance in the Immediate Window:

? Foo foo = new Foo(); // new instance of ‘Foo’
{temp.Program.Foo}
? foo.GetMessage()
"hello"

You can take it a step further and temporarily assign the method's results to variables if you want to do further evaluations, calculations, etc.:

? string msg = foo.GetMessage();
"hello"
? msg + " there!"
"hello there!"

Furthermore, if you don’t even want to declare a variable name for a new object and just want to run one of its methods/functions then do this:

? new Foo().GetMessage()
"hello" 

A very common way to see the value of a method is to select the method name of a class and do a ‘Add Watch’ so that you can see its current value in the Watch window. However, once again, the object needs to be instantiated and in scope for a valid value to be displayed. This is much less powerful and more restrictive than using the Immediate Window.

Along with inspecting methods, you can do simple math equations:

? 5 * 6
30

or compare values:

? 5==6
false
? 6==6
true

The question mark ('?') is unnecessary if you are in directly in the Immediate Window but it is included here for clarity (to distinguish between the typed in expressions versus the results.) However, if you are in the Command Window and need to do some quick stuff in the Immediate Window then precede your statements with '?' and off you go.

Intellisense works in the Immediate Window, but it sometimes can be a bit inconsistent. In my experience, it seems to be only available in Debug mode, but not in design, non-debug mode.

Unfortunately, another drawback of the Immediate Window is that it does not support loops.

I also struggled a lot with this issue. The answers in this thread were helpful but were not enough to resolve my error. You will need to disable Hyper-V and Device guard like the other answers have suggested. More info on that can be found in here.

I am including the changes needed to be done in addition to the answers provided above. The link that finally helped me was this.

My answer is going to summarize only the difference between the rest of the answers (i.e. Disabling Hyper-V and Device guard) and the following steps :

1. If you used Group Policy, disable the Group Policy setting that you used to enable Windows Defender Credential Guard (Computer Configuration -> Administrative Templates -> System -> Device Guard -> Turn on Virtualization Based Security).

2. Delete the following registry settings:

   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\LSA\LsaCfgFlags HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\DeviceGuard\EnableVirtualizationBasedSecurity HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\DeviceGuard\RequirePlatformSecurityFeatures

   Important : If you manually remove these registry settings, make sure to delete them all. If you don't remove them all, the device might go into BitLocker recovery.

3. Delete the Windows Defender Credential Guard EFI variables by using bcdedit. From an elevated command prompt(start in admin mode), type the following commands:

    mountvol X: /s
   
    copy %WINDIR%\System32\SecConfig.efi X:\EFI\Microsoft\Boot\SecConfig.efi /Y
   
    bcdedit /create {0cb3b571-2f2e-4343-a879-d86a476d7215} /d "DebugTool" /application osloader
   
    bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} path "\EFI\Microsoft\Boot\SecConfig.efi"
   
    bcdedit /set {bootmgr} bootsequence {0cb3b571-2f2e-4343-a879-d86a476d7215}
   
    bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} loadoptions DISABLE-LSA-ISO
   
    bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} device partition=X:
   
    mountvol X: /d
   

4. Restart the PC.

5. Accept the prompt to disable Windows Defender Credential Guard.

6. Alternatively, you can disable the virtualization-based security features to turn off Windows Defender Credential Guard.

If you want to set a default button action in a JTextField enter, you have to do this:

//put this after initComponents();

textField.addActionListener(button.getActionListeners()[0]);

It is [0] because a button can has a lot of actions, but normally just has one (ActionPerformed).

I don't know if this question is still relevant, but there is such possibility in Postman now. They added it a few months ago.

All you need is create simple .js file and run it via node.js. It looks like this:

var path = require('path'),
  async = require('async'), //https://www.npmjs.com/package/async
  newman = require('newman'),

  parametersForTestRun = {
    collection: path.join(__dirname, 'postman_collection.json'), // your collection
    environment: path.join(__dirname, 'postman_environment.json'), //your env
  };

parallelCollectionRun = function(done) {
  newman.run(parametersForTestRun, done);
};

// Runs the Postman sample collection thrice, in parallel.
async.parallel([
    parallelCollectionRun,
    parallelCollectionRun,
    parallelCollectionRun
  ],
  function(err, results) {
    err && console.error(err);

    results.forEach(function(result) {
      var failures = result.run.failures;
      console.info(failures.length ? JSON.stringify(failures.failures, null, 2) :
        `${result.collection.name} ran successfully.`);
    });
  });

Then just run this .js file ('node fileName.js' in cmd).

More details here

Using the --rebase option worked for me.

• git pull <remote> <branch> --rebase

Then push to the repo.

• git push <remote> <branch>

E.g.

git pull origin master --rebase

git push origin master

This is the logger class that I use. The private Log() method has EventLog.WriteEntry() in it, which is how you actually write to the event log. I'm including all of this code here because it's handy. In addition to logging, this class will also make sure the message isn't too long to write to the event log (it will truncate the message). If the message was too long, you'd get an exception. The caller can also specify the source. If the caller doesn't, this class will get the source. Hope it helps.

By the way, you can get an ObjectDumper from the web. I didn't want to post all that here. I got mine from here: C:\Program Files (x86)\Microsoft Visual Studio 10.0\Samples\1033\CSharpSamples.zip\LinqSamples\ObjectDumper

using System;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Linq;
using System.Reflection;
using Xanico.Core.Utilities;

namespace Xanico.Core
{
    /// <summary>
    /// Logging operations
    /// </summary>
    public static class Logger
    {
        // Note: The actual limit is higher than this, but different Microsoft operating systems actually have
        //       different limits. So just use 30,000 to be safe.
        private const int MaxEventLogEntryLength = 30000;

        /// <summary>
        /// Gets or sets the source/caller. When logging, this logger class will attempt to get the
        /// name of the executing/entry assembly and use that as the source when writing to a log.
        /// In some cases, this class can't get the name of the executing assembly. This only seems
        /// to happen though when the caller is in a separate domain created by its caller. So,
        /// unless you're in that situation, there is no reason to set this. However, if there is
        /// any reason that the source isn't being correctly logged, just set it here when your
        /// process starts.
        /// </summary>
        public static string Source { get; set; }

        /// <summary>
        /// Logs the message, but only if debug logging is true.
        /// </summary>
        /// <param name="message">The message.</param>
        /// <param name="debugLoggingEnabled">if set to <c>true</c> [debug logging enabled].</param>
        /// <param name="source">The name of the app/process calling the logging method. If not provided,
        /// an attempt will be made to get the name of the calling process.</param>
        public static void LogDebug(string message, bool debugLoggingEnabled, string source = "")
        {
            if (debugLoggingEnabled == false) { return; }

            Log(message, EventLogEntryType.Information, source);
        }

        /// <summary>
        /// Logs the information.
        /// </summary>
        /// <param name="message">The message.</param>
        /// <param name="source">The name of the app/process calling the logging method. If not provided,
        /// an attempt will be made to get the name of the calling process.</param>
        public static void LogInformation(string message, string source = "")
        {
            Log(message, EventLogEntryType.Information, source);
        }

        /// <summary>
        /// Logs the warning.
        /// </summary>
        /// <param name="message">The message.</param>
        /// <param name="source">The name of the app/process calling the logging method. If not provided,
        /// an attempt will be made to get the name of the calling process.</param>
        public static void LogWarning(string message, string source = "")
        {
            Log(message, EventLogEntryType.Warning, source);
        }

        /// <summary>
        /// Logs the exception.
        /// </summary>
        /// <param name="ex">The ex.</param>
        /// <param name="source">The name of the app/process calling the logging method. If not provided,
        /// an attempt will be made to get the name of the calling process.</param>
        public static void LogException(Exception ex, string source = "")
        {
            if (ex == null) { throw new ArgumentNullException("ex"); }

            if (Environment.UserInteractive)
            {
                Console.WriteLine(ex.ToString());
            }

            Log(ex.ToString(), EventLogEntryType.Error, source);
        }

        /// <summary>
        /// Recursively gets the properties and values of an object and dumps that to the log.
        /// </summary>
        /// <param name="theObject">The object to log</param>
        [SuppressMessage("Microsoft.Globalization", "CA1303:Do not pass literals as localized parameters", MessageId = "Xanico.Core.Logger.Log(System.String,System.Diagnostics.EventLogEntryType,System.String)")]
        [SuppressMessage("Microsoft.Naming", "CA1720:IdentifiersShouldNotContainTypeNames", MessageId = "object")]
        public static void LogObjectDump(object theObject, string objectName, string source = "")
        {
            const int objectDepth = 5;
            string objectDump = ObjectDumper.GetObjectDump(theObject, objectDepth);

            string prefix = string.Format(CultureInfo.CurrentCulture,
                                          "{0} object dump:{1}",
                                          objectName,
                                          Environment.NewLine);

            Log(prefix + objectDump, EventLogEntryType.Warning, source);
        }

        private static void Log(string message, EventLogEntryType entryType, string source)
        {
            // Note: I got an error that the security log was inaccessible. To get around it, I ran the app as administrator
            //       just once, then I could run it from within VS.

            if (string.IsNullOrWhiteSpace(source))
            {
                source = GetSource();
            }

            string possiblyTruncatedMessage = EnsureLogMessageLimit(message);
            EventLog.WriteEntry(source, possiblyTruncatedMessage, entryType);

            // If we're running a console app, also write the message to the console window.
            if (Environment.UserInteractive)
            {
                Console.WriteLine(message);
            }
        }

        private static string GetSource()
        {
            // If the caller has explicitly set a source value, just use it.
            if (!string.IsNullOrWhiteSpace(Source)) { return Source; }

            try
            {
                var assembly = Assembly.GetEntryAssembly();

                // GetEntryAssembly() can return null when called in the context of a unit test project.
                // That can also happen when called from an app hosted in IIS, or even a windows service.

                if (assembly == null)
                {
                    assembly = Assembly.GetExecutingAssembly();
                }


                if (assembly == null)
                {
                    // From http://stackoverflow.com/a/14165787/279516:
                    assembly = new StackTrace().GetFrames().Last().GetMethod().Module.Assembly;
                }

                if (assembly == null) { return "Unknown"; }

                return assembly.GetName().Name;
            }
            catch
            {
                return "Unknown";
            }
        }

        // Ensures that the log message entry text length does not exceed the event log viewer maximum length of 32766 characters.
        private static string EnsureLogMessageLimit(string logMessage)
        {
            if (logMessage.Length > MaxEventLogEntryLength)
            {
                string truncateWarningText = string.Format(CultureInfo.CurrentCulture, "... | Log Message Truncated [ Limit: {0} ]", MaxEventLogEntryLength);

                // Set the message to the max minus enough room to add the truncate warning.
                logMessage = logMessage.Substring(0, MaxEventLogEntryLength - truncateWarningText.Length);

                logMessage = string.Format(CultureInfo.CurrentCulture, "{0}{1}", logMessage, truncateWarningText);
            }

            return logMessage;
        }
    }
}

Thanks Antonio,

I've just added the lists command at the end so it will only return one array with key and count:

Laravel 4

$user_info = DB::table('usermetas')
             ->select('browser', DB::raw('count(*) as total'))
             ->groupBy('browser')
             ->lists('total','browser');

Laravel 5.1

$user_info = DB::table('usermetas')
             ->select('browser', DB::raw('count(*) as total'))
             ->groupBy('browser')
             ->lists('total','browser')->all();

Laravel 5.2+

$user_info = DB::table('usermetas')
             ->select('browser', DB::raw('count(*) as total'))
             ->groupBy('browser')
             ->pluck('total','browser')->all();

I have also faced this issue, and I'm on Xcode 7.2.

It appeared when I downloaded iOS 9.3.

Check your Project -> Base SDK and if it isn't the same or ahead of your device version, then that's the issue.

I didn't see anything in the "Updates" section, but when I searched "Xcode" in the App Store it had an update for 7.3. Upgrading to iOS 9.3 and Xcode 7.3 requires Mac OS X v10.11 (El Capitan) for Xcode to run, and that's why auto update isn't upgrading Xcode versions.

Note that React's create-react-app tool-chain supports the null-coalescing since version 3.3.0 (released 5.12.2019). From the release notes:

Optional Chaining and Nullish Coalescing Operators

We now support the optional chaining and nullish coalescing operators!

// Optional chaining
a?.(); // undefined if `a` is null/undefined
b?.c; // undefined if `b` is null/undefined

// Nullish coalescing
undefined ?? 'some other default'; // result: 'some other default'
null ?? 'some other default'; // result: 'some other default'
'' ?? 'some other default'; // result: ''
0 ?? 300; // result: 0
false ?? true; // result: false

This said, in case you use create-react-app 3.3.0+ you can start using the null-coalesce operator already today in your React apps.

You should check with SMTP.

That means you have to connect to that email's SMTP server.

After connecting to the SMTP server you should send these commands:

HELO somehostname.com
MAIL FROM: <[email protected]>
RCPT TO: <[email protected]>

If you get "<[email protected]> Relay access denied" that means this email is Invalid.

There is a simple PHP class. You can use it:

http://www.phpclasses.org/package/6650-PHP-Check-if-an-e-mail-is-valid-using-SMTP.html

Currently, the link dlptest is working fine.

The files will only be stored for 30 minutes before being deleted.

This will give you the current screen based on the top left of the window just call this.CurrentScreen() to get info on the current screen.

using System.Windows;
using System.Windows.Forms;

namespace Common.Helpers
{
    public static class WindowHelpers
     {
        public static Screen CurrentScreen(this Window window)
         {
             return Screen.FromPoint(new System.Drawing.Point((int)window.Left,(int)window.Top));
         }
     }
}

:before and :after render inside a container

and <input> can not contain other elements.

Pseudo-elements can only be defined (or better said are only supported) on container elements. Because the way they are rendered is within the container itself as a child element. input can not contain other elements hence they're not supported. A button on the other hand that's also a form element supports them, because it's a container of other sub-elements.

If you ask me, if some browser does display these two pseudo-elements on non-container elements, it's a bug and a non-standard conformance. Specification directly talks about element content...

W3C specification

If we carefully read the specification it actually says that they are inserted inside a containing element:

Authors specify the style and location of generated content with the :before and :after pseudo-elements. As their names indicate, the :before and :after pseudo-elements specify the location of content before and after an element's document tree content. The 'content' property, in conjunction with these pseudo-elements, specifies what is inserted.

See? an element's document tree content. As I understand it this means within a container.

Am using angular 5 and for an ngif to work for me that is in a ngfor, I had to use animateChild and in the user-detail component I used the *ngIf="user.expanded" to show hide user and it worked for entering a leaving

 <div *ngFor="let user of users" @flyInParent>
  <ly-user-detail [user]= "user" @flyIn></user-detail>
</div>

//the animation file


export const FLIP_TRANSITION = [ 
trigger('flyInParent', [
    transition(':enter, :leave', [
      query('@*', animateChild())
    ])
  ]),
  trigger('flyIn', [
    state('void', style({width: '100%', height: '100%'})),
    state('*', style({width: '100%', height: '100%'})),
    transition(':enter', [
      style({
        transform: 'translateY(100%)',
        position: 'fixed'
      }),
      animate('0.5s cubic-bezier(0.35, 0, 0.25, 1)', style({transform: 'translateY(0%)'}))
    ]),
    transition(':leave', [
      style({
        transform: 'translateY(0%)',
        position: 'fixed'
      }),
      animate('0.5s cubic-bezier(0.35, 0, 0.25, 1)', style({transform: 'translateY(100%)'}))
    ])
  ])
];

I found a solution for my problem while writing my question !

Going into my remote session i tried two key combinations, and it solved the problem on my Desktop : Alt+Enter and Ctrl+Enter (i don't know which one solved the problem though)

I tried to reproduce the problem, but i couldn't... but i'm almost sure it's one of the key combinations described in the question above (since i experienced this problem several times)

So it seems the problem comes from the use of RDP (windows7 and 8)

Update 2017: Problem occurs on Windows 10 aswell.

Above answer can be considered to be confusing a little. String methods are not modifying original object. They return new object. It must be:

var str = "Sonic Free Games";
str = str.replace(/\s+/g, '-').toLowerCase(); //new object assigned to var str

No, it doesn't save you memory.

Also note that you don't have to import Math at all. Everything in java.lang is imported automatically.

A better example would be something like an ArrayList

import java.util.ArrayList;
....
ArrayList<String> i = new ArrayList<String>();

Note I'm importing the ArrayList specifically. I could have done

import java.util.*; 

But you generally want to avoid large wildcard imports to avoid the problem of collisions between packages.

Simply use CSS padding rules with table data:

td { 
    padding: 20px;
}

And for border spacing:

table { 
    border-spacing: 1px;
    border-collapse: collapse;
}

However, it can create problems in older version of browsers like Internet Explorer because of the diff implementation of the box model.

This post asked a similar question and used LINQ to solve it, maybe it will help you out too.

string s1 = "1;2;3;4;5;6;7;8;9;10;11;12";
int[] ia = s1.Split(';').Select(n => Convert.ToInt32(n)).ToArray();

Yes. Google Collections, or Guava as it is named now has something called MapMaker which can do exactly that.

ConcurrentMap<Key, Graph> graphs = new MapMaker()
   .concurrencyLevel(4)
   .softKeys()
   .weakValues()
   .maximumSize(10000)
   .expiration(10, TimeUnit.MINUTES)
   .makeComputingMap(
       new Function<Key, Graph>() {
         public Graph apply(Key key) {
           return createExpensiveGraph(key);
         }
       });

Update:

As of guava 10.0 (released September 28, 2011) many of these MapMaker methods have been deprecated in favour of the new CacheBuilder:

LoadingCache<Key, Graph> graphs = CacheBuilder.newBuilder()
    .maximumSize(10000)
    .expireAfterWrite(10, TimeUnit.MINUTES)
    .build(
        new CacheLoader<Key, Graph>() {
          public Graph load(Key key) throws AnyException {
            return createExpensiveGraph(key);
          }
        });

I use inf/-inf as initial values to find minimum/maximum value of a measurement. Lets say that you measure temperature with a sensor and you want to keep track of minimum/maximum temperature. The sensor might provide a valid temperature or might be broken. Pseudocode:

# initial value of the temperature
t = float('nan')          
# initial value of minimum temperature, so any measured temp. will be smaller
t_min = float('inf')      
# initial value of maximum temperature, so any measured temp. will be bigger
t_max = float('-inf')     
while True:
    # measure temperature, if sensor is broken t is not changed
    t = measure()     
    # find new minimum temperature
    t_min = min(t_min, t) 
    # find new maximum temperature
    t_max = max(t_max, t) 

The above code works because inf/-inf/nan are valid for min/max operation, so there is no need to deal with exceptions.

As reported by Aziz Alto filter(None, lstr) does not remove empty strings with a space ' ' but if you are sure lstr contains only string you can use filter(str.strip, lstr)

>>> lstr = ['hello', '', ' ', 'world', ' ']
>>> lstr
['hello', '', ' ', 'world', ' ']
>>> ' '.join(lstr).split()
['hello', 'world']
>>> filter(str.strip, lstr)
['hello', 'world']

Compare time on my pc

>>> from timeit import timeit
>>> timeit('" ".join(lstr).split()', "lstr=['hello', '', ' ', 'world', ' ']", number=10000000)
3.356455087661743
>>> timeit('filter(str.strip, lstr)', "lstr=['hello', '', ' ', 'world', ' ']", number=10000000)
5.276503801345825

The fastest solution to remove '' and empty strings with a space ' ' remains ' '.join(lstr).split().

As reported in a comment the situation is different if your strings contain spaces.

>>> lstr = ['hello', '', ' ', 'world', '    ', 'see you']
>>> lstr
['hello', '', ' ', 'world', '    ', 'see you']
>>> ' '.join(lstr).split()
['hello', 'world', 'see', 'you']
>>> filter(str.strip, lstr)
['hello', 'world', 'see you']

You can see that filter(str.strip, lstr) preserve strings with spaces on it but ' '.join(lstr).split() will split this strings.

• First create the menu layouts in the your Activity layout xml file. For e.g. a linear layout with horizontal orientation and include a TextView for label then a Floating Action Button beside the TextView.

• Create the menu layouts as per your need and number.

• Create a Base Floating Action Button and on its click of that change the visibility of the Menu Layouts.

Please check the below code for the reference and for more info checkout my project from github

Checkout project from Github

<android.support.constraint.ConstraintLayout
            android:id="@+id/activity_main"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            tools:context="com.app.fabmenu.MainActivity">

            <android.support.design.widget.FloatingActionButton
                android:id="@+id/baseFloatingActionButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginBottom="16dp"
                android:layout_marginEnd="16dp"
                android:layout_marginRight="16dp"
                android:clickable="true"
                android:onClick="@{FabHandler::onBaseFabClick}"
                android:tint="@android:color/white"
                app:fabSize="normal"
                app:layout_constraintBottom_toBottomOf="@+id/activity_main"
                app:layout_constraintRight_toRightOf="@+id/activity_main"
                app:srcCompat="@drawable/ic_add_black_24dp" />

            <LinearLayout
                android:id="@+id/shareLayout"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginBottom="12dp"
                android:layout_marginEnd="24dp"
                android:layout_marginRight="24dp"
                android:gravity="center_vertical"
                android:orientation="horizontal"
                android:visibility="invisible"
                app:layout_constraintBottom_toTopOf="@+id/createLayout"
                app:layout_constraintLeft_toLeftOf="@+id/createLayout"
                app:layout_constraintRight_toRightOf="@+id/activity_main">

                <TextView
                    android:id="@+id/shareLabelTextView"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginEnd="8dp"
                    android:layout_marginRight="8dp"
                    android:background="@drawable/shape_fab_label"
                    android:elevation="2dp"
                    android:fontFamily="sans-serif"
                    android:padding="5dip"
                    android:text="Share"
                    android:textColor="@android:color/white"
                    android:typeface="normal" />


                <android.support.design.widget.FloatingActionButton
                    android:id="@+id/shareFab"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:clickable="true"
                    android:onClick="@{FabHandler::onShareFabClick}"
                    android:tint="@android:color/white"
                    app:fabSize="mini"
                    app:srcCompat="@drawable/ic_share_black_24dp" />

            </LinearLayout>

            <LinearLayout
                android:id="@+id/createLayout"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginBottom="24dp"
                android:layout_marginEnd="24dp"
                android:layout_marginRight="24dp"
                android:gravity="center_vertical"
                android:orientation="horizontal"
                android:visibility="invisible"
                app:layout_constraintBottom_toTopOf="@+id/baseFloatingActionButton"
                app:layout_constraintRight_toRightOf="@+id/activity_main">

                <TextView
                    android:id="@+id/createLabelTextView"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginEnd="8dp"
                    android:layout_marginRight="8dp"
                    android:background="@drawable/shape_fab_label"
                    android:elevation="2dp"
                    android:fontFamily="sans-serif"
                    android:padding="5dip"
                    android:text="Create"
                    android:textColor="@android:color/white"
                    android:typeface="normal" />

                <android.support.design.widget.FloatingActionButton
                    android:id="@+id/createFab"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:clickable="true"
                    android:onClick="@{FabHandler::onCreateFabClick}"
                    android:tint="@android:color/white"
                    app:fabSize="mini"
                    app:srcCompat="@drawable/ic_create_black_24dp" />

            </LinearLayout>

        </android.support.constraint.ConstraintLayout>

These are the animations-

Opening animation of FAB Menu:

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillAfter="true">
<scale
    android:duration="300"
    android:fromXScale="0"
    android:fromYScale="0"
    android:interpolator="@android:anim/linear_interpolator"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toXScale="1"
    android:toYScale="1" />
<alpha
    android:duration="300"
    android:fromAlpha="0.0"
    android:interpolator="@android:anim/accelerate_interpolator"
    android:toAlpha="1.0" />

</set>

Closing animation of FAB Menu:

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillAfter="true">
<scale
    android:duration="300"
    android:fromXScale="1"
    android:fromYScale="1"
    android:interpolator="@android:anim/linear_interpolator"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toXScale="0.0"
    android:toYScale="0.0" />
<alpha
    android:duration="300"
    android:fromAlpha="1.0"
    android:interpolator="@android:anim/accelerate_interpolator"
    android:toAlpha="0.0" />
</set>

Then in my Activity I've simply used the animations above to show and hide the FAB menu :

Show Fab Menu:

  private void expandFabMenu() {

    ViewCompat.animate(binding.baseFloatingActionButton).rotation(45.0F).withLayer().setDuration(300).setInterpolator(new OvershootInterpolator(10.0F)).start();
    binding.createLayout.startAnimation(fabOpenAnimation);
    binding.shareLayout.startAnimation(fabOpenAnimation);
    binding.createFab.setClickable(true);
    binding.shareFab.setClickable(true);
    isFabMenuOpen = true;

}

Close Fab Menu:

private void collapseFabMenu() {

    ViewCompat.animate(binding.baseFloatingActionButton).rotation(0.0F).withLayer().setDuration(300).setInterpolator(new OvershootInterpolator(10.0F)).start();
    binding.createLayout.startAnimation(fabCloseAnimation);
    binding.shareLayout.startAnimation(fabCloseAnimation);
    binding.createFab.setClickable(false);
    binding.shareFab.setClickable(false);
    isFabMenuOpen = false;

}

Here is the the Activity class -

package com.app.fabmenu;

import android.databinding.DataBindingUtil;
import android.os.Bundle;
import android.support.design.widget.Snackbar;
import android.support.v4.view.ViewCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.OvershootInterpolator;

import com.app.fabmenu.databinding.ActivityMainBinding;

public class MainActivity extends AppCompatActivity {

private ActivityMainBinding binding;
private Animation fabOpenAnimation;
private Animation fabCloseAnimation;
private boolean isFabMenuOpen = false;

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

    binding = DataBindingUtil.setContentView(this,    R.layout.activity_main);
    binding.setFabHandler(new FabHandler());

    getAnimations();


}

private void getAnimations() {

    fabOpenAnimation = AnimationUtils.loadAnimation(this, R.anim.fab_open);

    fabCloseAnimation = AnimationUtils.loadAnimation(this, R.anim.fab_close);

}

private void expandFabMenu() {

    ViewCompat.animate(binding.baseFloatingActionButton).rotation(45.0F).withLayer().setDuration(300).setInterpolator(new OvershootInterpolator(10.0F)).start();
    binding.createLayout.startAnimation(fabOpenAnimation);
    binding.shareLayout.startAnimation(fabOpenAnimation);
    binding.createFab.setClickable(true);
    binding.shareFab.setClickable(true);
    isFabMenuOpen = true;


}

private void collapseFabMenu() {

    ViewCompat.animate(binding.baseFloatingActionButton).rotation(0.0F).withLayer().setDuration(300).setInterpolator(new OvershootInterpolator(10.0F)).start();
    binding.createLayout.startAnimation(fabCloseAnimation);
    binding.shareLayout.startAnimation(fabCloseAnimation);
    binding.createFab.setClickable(false);
    binding.shareFab.setClickable(false);
    isFabMenuOpen = false;

}


public class FabHandler {

    public void onBaseFabClick(View view) {

        if (isFabMenuOpen)
            collapseFabMenu();
        else
            expandFabMenu();


    }

    public void onCreateFabClick(View view) {

        Snackbar.make(binding.coordinatorLayout, "Create FAB tapped", Snackbar.LENGTH_SHORT).show();

    }

    public void onShareFabClick(View view) {

        Snackbar.make(binding.coordinatorLayout, "Share FAB tapped", Snackbar.LENGTH_SHORT).show();

    }


}

@Override
public void onBackPressed() {

    if (isFabMenuOpen)
        collapseFabMenu();
    else
        super.onBackPressed();
}
}

Here are the screenshots

Using create-react-app v3.3 I found the easiest way to achieve this was to extend the Window type in the auto-generated react-app-env.d.ts:

interface Window {
    MyNamespace: any;
}

I used the following query to retrieve the information of constraints in the SQL Server 2012, and works perfectly. I hope it would be useful for you.

SELECT 
    tab.name AS [Table]
    ,tab.id AS [Table Id]
    ,constr.name AS [Constraint Name]
    ,constr.xtype AS [Constraint Type]
    ,CASE constr.xtype WHEN 'PK' THEN 'Primary Key' WHEN 'UQ' THEN 'Unique' ELSE '' END AS [Constraint Name]
    ,i.index_id AS [Index ID]
    ,ic.column_id AS [Column ID]
    ,clmns.name AS [Column Name]
    ,clmns.max_length AS [Column Max Length]
    ,clmns.precision AS [Column Precision]
    ,CASE WHEN clmns.is_nullable = 0 THEN 'NO' ELSE 'YES' END AS [Column Nullable]
    ,CASE WHEN clmns.is_identity = 0 THEN 'NO' ELSE 'YES' END AS [Column IS IDENTITY]
FROM SysObjects AS tab
INNER JOIN SysObjects AS constr ON(constr.parent_obj = tab.id AND constr.type = 'K')
INNER JOIN sys.indexes AS i ON( (i.index_id > 0 and i.is_hypothetical = 0) AND (i.object_id=tab.id) AND i.name = constr.name )
INNER JOIN sys.index_columns AS ic ON (ic.column_id > 0 and (ic.key_ordinal > 0 or ic.partition_ordinal = 0 or ic.is_included_column != 0)) 
                                    AND (ic.index_id=CAST(i.index_id AS int) 
                                    AND ic.object_id=i.object_id)
INNER JOIN sys.columns AS clmns ON clmns.object_id = ic.object_id and clmns.column_id = ic.column_id
WHERE tab.xtype = 'U'
ORDER BY tab.name

String trimStartEnd = "\n TestString1 linebreak1\nlinebreak2\nlinebreak3\n TestString2 \n";
System.out.println("Original String : [" + trimStartEnd + "]");
System.out.println("-----------------------------");
System.out.println("Result String : [" + trimStartEnd.replaceAll("^(\\r\\n|[\\n\\x0B\\x0C\\r\\u0085\\u2028\\u2029])|(\\r\\n|[\\n\\x0B\\x0C\\r\\u0085\\u2028\\u2029])$", "") + "]");

1. Start of a string = ^ ,
2. End of a string = $ ,
3. regex combination = | ,
4. Linebreak = \r\n|[\n\x0B\x0C\r\u0085\u2028\u2029]

Its in the standard float.h include file. You want DBL_MAX

You must prepend an underscore to the css file to be included, and switch its extension to scss (ex: _yourfile.scss). Then you just have to call it this way:

@import "yourfile";

And it will include the contents of the file, instead of using the CSS standard @import directive.

You can use tuples like this: SELECT * FROM table WHERE (Col, 1) IN ((123,1),(123,1),(222,1),....)

There are no restrictions on number of these. It compares pairs.

Add "name" attribute and keep the name same for all the radio buttons in a form.

i.e.,

<input type="radio" name="test" value="value1"> Value 1
<input type="radio" name="test" value="value2"> Value 2
<input type="radio" name="test" value="value3"> Value 3

Hope that would help.

I am an amateur but I found this worked:

.maps iframe {
    position: absolute;
}

body {
    padding-top: 40px;
    padding-bottom: 820px;
    height: available;
}

There may be a bit of whitespace at the bottom but I am satified

It's not directly relevant but I came here searching for a one liner for merging nested objects such as

const nodes = {
    node1: {
        interfaces: {if1: {}, if2: {}}
    },
    node2: {
        interfaces: {if3: {}, if4: {}}
    },
    node3: {
        interfaces: {if5: {}, if6: {}}
    },
}

The solution is to use a combination of reduce and object spread:

const allInterfaces = nodes => Object.keys(nodes).reduce((res, key) => ({...res, ...nodes[key].interfaces}), {})

From the WordPress Codex:

<?php
$the_slug = 'my_slug';
$args = array(
  'name'        => $the_slug,
  'post_type'   => 'post',
  'post_status' => 'publish',
  'numberposts' => 1
);
$my_posts = get_posts($args);
if( $my_posts ) :
  echo 'ID on the first post found ' . $my_posts[0]->ID;
endif;
?>

WordPress Codex Get Posts

This works for me, best way to come out of python prompt.

exit()

If the file is local as your comment about SITE_PATH suggest, it's pretty simple just execute the script and cache the result in a variable using the output control functions :

function print_xml_data_file()
{
    include(XML_DATA_FILE_DIRECTORY . 'cms/data.php');
}

function get_xml_data()
{
    ob_start();
    print_xml_data_file();
    $xml_file = ob_get_contents();
    ob_end_clean();
    return $xml_file;
}

If it's remote as lot of others said curl is the way to go. If it isn't present try socket_create or fsockopen. If nothing work... change your hosting provider.

:g/^$/d

:g will execute a command on lines which match a regex. The regex is 'blank line' and the command is :d (delete)

If you use the gson.JsonObject you can have something like that:

import com.google.gson.JsonObject;
import com.google.gson.JsonParser;

String jsonString = "{'test1':'value1','test2':{'id':0,'name':'testName'}}"
JsonObject jsonObject = (JsonObject) jsonParser.parse(jsonString)

You seem to be aware already, but I'll just restate it anyway; It's a bad sign, if you need to test protected methods. The aim of a unit test, is to test the interface of a class, and protected methods are implementation details. That said, there are cases where it makes sense. If you use inheritance, you can see a superclass as providing an interface for the subclass. So here, you would have to test the protected method (But never a private one). The solution to this, is to create a subclass for testing purpose, and use this to expose the methods. Eg.:

class Foo {
  protected function stuff() {
    // secret stuff, you want to test
  }
}

class SubFoo extends Foo {
  public function exposedStuff() {
    return $this->stuff();
  }
}

Note that you can always replace inheritance with composition. When testing code, it's usually a lot easier to deal with code that uses this pattern, so you may want to consider that option.

The number of rows of a list of lists would be: len(A) and the number of columns len(A[0]) given that all rows have the same number of columns, i.e. all lists in each index are of the same size.

The secrets module is new in Python 3.6. This is better than the random module for cryptography or security uses.

To randomly print an integer in the inclusive range 0-9:

from secrets import randbelow
print(randbelow(10))

For details, see PEP 506.

I found an extension method that works quite well

public static string ToHex(this Color color)
{
    return String.Format("#{0}{1}{2}{3}"
        , color.A.ToString("X").Length == 1 ? String.Format("0{0}", color.A.ToString("X")) : color.A.ToString("X")
        , color.R.ToString("X").Length == 1 ? String.Format("0{0}", color.R.ToString("X")) : color.R.ToString("X")
        , color.G.ToString("X").Length == 1 ? String.Format("0{0}", color.G.ToString("X")) : color.G.ToString("X")
        , color.B.ToString("X").Length == 1 ? String.Format("0{0}", color.B.ToString("X")) : color.B.ToString("X"));
}

Ref: https://social.msdn.microsoft.com/Forums/en-US/4c77ba6c-6659-4a46-920a-7261dd4a15d0/how-to-convert-rgba-value-into-its-equivalent-hex-code?forum=winappswithcsharp

Always use UTC:

For example I have a schedule component that takes in one parameter DATETIME. When I call this using a GET verb I use the following format where my incoming parameter name is scheduleDate.

Example:
https://localhost/api/getScheduleForDate?scheduleDate=2003-11-21T01:11:11Z

Here are a couple of complete working examples that build on the @bendewey & @dommer examples. I needed to tweak each one a bit to get it to work, but in case another LINQ noob is looking for working examples, here you go:

//bendewey's example using data.xml from OP
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;

class loadXMLToLINQ1
{
    static void Main( )
    {
        //Load xml
        XDocument xdoc = XDocument.Load(@"c:\\data.xml"); //you'll have to edit your path

        //Run query
        var lv1s = from lv1 in xdoc.Descendants("level1")
           select new 
           { 
               Header = lv1.Attribute("name").Value,
               Children = lv1.Descendants("level2")
            };

        StringBuilder result = new StringBuilder(); //had to add this to make the result work
        //Loop through results
        foreach (var lv1 in lv1s)
        {
            result.AppendLine("  " + lv1.Header);
            foreach(var lv2 in lv1.Children)
            result.AppendLine("    " + lv2.Attribute("name").Value);
        }
        Console.WriteLine(result.ToString()); //added this so you could see the output on the console
    }
}

And next:

//Dommer's example, using data.xml from OP
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;

class loadXMLToLINQ
{
static void Main( )
    {
        XElement rootElement = XElement.Load(@"c:\\data.xml"); //you'll have to edit your path
        Console.WriteLine(GetOutline(0, rootElement));  
    }

static private string GetOutline(int indentLevel, XElement element)
    {
        StringBuilder result = new StringBuilder();
        if (element.Attribute("name") != null)
        {
            result = result.AppendLine(new string(' ', indentLevel * 2) + element.Attribute("name").Value);
        }
        foreach (XElement childElement in element.Elements())
        {
            result.Append(GetOutline(indentLevel + 1, childElement));
        }
        return result.ToString();
    }
}

These both compile & work in VS2010 using csc.exe version 4.0.30319.1 and give the exact same output. Hopefully these help someone else who's looking for working examples of code.

EDIT: added @eglasius' example as well since it became useful to me:

//@eglasius example, still using data.xml from OP
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;

class loadXMLToLINQ2
{
    static void Main( )
    {
        StringBuilder result = new StringBuilder(); //needed for result below
        XDocument xdoc = XDocument.Load(@"c:\\deg\\data.xml"); //you'll have to edit your path
        var lv1s = xdoc.Root.Descendants("level1"); 
        var lvs = lv1s.SelectMany(l=>
             new string[]{ l.Attribute("name").Value }
             .Union(
                 l.Descendants("level2")
                 .Select(l2=>"   " + l2.Attribute("name").Value)
              )
            );
        foreach (var lv in lvs)
        {
           result.AppendLine(lv);
        }
        Console.WriteLine(result);//added this so you could see the result
    }
}

In C you can use memcpy. In C++ use std::copy from the <algorithm> header.

Expanding on the answer provided by @Nguyen - this function can be added to your .bashrc etc and then called from the commandline to help clean up any image has dependent child images errors...

You can run the function as yourself, and if a docker ps fails, then it will run the docker command with sudo and prompt you for your password.

Does NOT delete images for any running containers!

docker_rmi_dependants ()                                                                                                                                                         
{ 
  DOCKER=docker
  [ docker ps >/dev/null 2>&1 ] || DOCKER="sudo docker"

  echo "Docker: ${DOCKER}"

  for n in $(${DOCKER} images | awk '$2 == "<none>" {print $3}');
  do  
    echo "ImageID: $n";
    ${DOCKER} inspect --format='{{.Id}} {{.Parent}}' $(${DOCKER} images --filter since=$n -q);
  done;

  ${DOCKER} rmi $(${DOCKER} images | awk '$2 == "<none>" {print $3}')
}

I also have this in my .bashrc file...

docker_rm_dangling ()  
{ 
  DOCKER=docker
  [ docker ps >/dev/null 2>&1 ] || DOCKER="sudo docker"

  echo "Docker: ${DOCKER}"

  ${DOCKER} images -f dangling=true 2>&1 > /dev/null && YES=$?;                                                                                                                  
  if [ $YES -eq 1 ]; then
    read -t 30 -p "Press ENTER to remove, or CTRL-C to quit.";
    ${DOCKER} rmi $(${DOCKER} images -f dangling=true -q);
  else
    echo "Nothing to do... all groovy!";
  fi  
}

Works with:

$ docker --version 
Docker version 17.05.0-ce, build 89658be

> grepl("^[^_]+_1",s)
[1] FALSE
> grepl("^[^_]+_2",s)
[1] TRUE

basically, look for everything at the beginning except _, and then the _2.

+1 to @Ananda_Mahto for suggesting grepl instead of grep.

If you've been doing unit testing for a decent amount of time, I see no reason for it not to be approaching 95%+. However, at a minimum, I've always worked with 80%, even when new to testing.

This number should only include code written in the project (excludes frameworks, plugins, etc.) and maybe even exclude certain classes composed entirely of code written of calls to outside code. This sort of call should be mocked/stubbed.

Note that with | char, you can get a warning with your IDE, for exemple I get warning with the last version of IntelliJ, So the best solution it's to use this syntax:

th:text="${'static_content - ' + you_variable}"

This work's very well.. hope it help's someone !

-(IBAction)flashlight:(id)sender {

    AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

    if ([device hasTorch] && [device hasFlash]){

        if (device.torchMode == AVCaptureTorchModeOff) {

            [sender setTitle:@"Torch Off" forState:UIControlStateNormal];

            AVCaptureDeviceInput *flashInput = [AVCaptureDeviceInput deviceInputWithDevice:device error: nil];
            AVCaptureVideoDataOutput *output = [[AVCaptureVideoDataOutput alloc] init];

            AVCaptureSession *cam = [[AVCaptureSession alloc] init];

            [cam beginConfiguration];
            [device lockForConfiguration:nil];

            [device setTorchMode:AVCaptureTorchModeOn];
            [device setFlashMode:AVCaptureFlashModeOn];

            [cam addInput:flashInput];
            [cam addOutput:output];

            [device unlockForConfiguration];

            [cam commitConfiguration];
            [cam startRunning];

            [self setTorchSession:cam];
        }
        else {
            [sender setTitle:@"Torch On" forState:UIControlStateNormal];
            [_torchSession stopRunning];
        }
    }
}

Try setting the definer for the function!

So instead of

CREATE FUNCTION get_pet_owner

you will write something akin to

CREATE DEFINER=procadmin@% FUNCTION get_pet_owner

which ought to work if the user prodacmin has rights to create functions/procedures.

In my case the function worked when generated through MySQL Workbench but did not work when run directly as an SQL script. Making the changes above fixed the problem.

Open cmd instead of powershell. This helped for me...

EDIT Since not so recently by now, MinGW-w64 has "absorbed" one of the toolchain building projects. The downloads can be found here. The installer should work, and allow you to pick a version that you need.

Note the Qt SDK comes with the same toolchain. So if you are developing in Qt and using the SDK, just use the toolchain it comes with.

Another alternative that has up to date toolchains comes from... harhar... a Microsoft developer, none other than STL (Stephan T. Lavavej, isn't that a spot-on name for the maintainer of MSVC++ Standard Library!). You can find it here. It includes Boost.

Another option which is highly useful if you care for prebuilt dependencies is MSYS2, which provides a Unix shell (a Cygwin fork modified to work better with Windows pathnames and such), also provides a GCC. It usually lags a bit behind, but that is compensated for by its good package management system and stability. They also provide a functional Clang with libc++ if you care for such thing.

I leave the below for reference, but I strongly suggest against using MinGW.org, due to limitations detailed below. TDM-GCC (the MinGW-w64 version) provides some hacks that you may find useful in your specific situation, although I recommend using vanilla GCC at all times for maximum compatibility.

GCC for Windows is provided by two projects currently. They both provide a very own implementation of the Windows SDK (headers and libraries) which is necessary because GCC does not work with Visual Studio files.

1. The older mingw.org, which @Mat already pointed you to. They provide only a 32-bit compiler. See here for the downloads you need:

   • Binutils is the linker and resource compiler etc.
   • GCC is the compiler, and is split in core and language packages
   • GDB is the debugger.
   • runtime library is required only for mingw.org
   • You might need to download mingw32-make seperately.
   • For support, you can try (don't expect friendly replies) [email protected]

   Alternatively, download mingw-get and use that.

2. The newer mingw-w64, which as the name predicts, also provides a 64-bit variant, and in the future hopefully some ARM support. I use it and built toolchains with their CRT. Personal and auto builds are found under "Toolchains targetting Win32/64" here. They also provide Linux to Windows cross-compilers. I suggest you try a personal build first, they are more complete. Try mine (rubenvb) for GCC 4.6 to 4.8, or use sezero's for GCC 4.4 and 4.5. Both of us provide 32-bit and 64-bit native toolchains. These packages include everything listed above. I currently recommend the "MinGW-Builds" builds, as these are currently sanctioned as "official builds", and come with an installer (see above).

   For support, send an email to [email protected] or post on the forum via sourceforge.net.

Both projects have their files listed on sourceforge, and all you have to do is either run the installer (in case of mingw.org) or download a suitable zipped package and extract it (in the case of mingw-w64).

There are a lot of "non-official" toolchain builders, one of the most popular is TDM-GCC. They may use patches that break binary compatibility with official/unpatched toolchains, so be careful using them. It's best to use the official releases.

On some mobiles like mine (MIUI Redmi 3) you can just add specific Application on list where application doesnt stop when you terminate applactions in Task Manager (It will stop but it will start again)

Just go to Settings>PermissionsAutostart

Recent versions of GNU Grep (>= 2.5.2) provide:

--exclude-dir=dir

which excludes directories matching the pattern dir from recursive directory searches.

So you can do:

grep -R --exclude-dir=node_modules 'some pattern' /path/to/search

For a bit more information regarding syntax and usage see

• The GNU man page for File and Directory Selection
• A related StackOverflow answer Use grep --exclude/--include syntax to not grep through certain files

For older GNU Greps and POSIX Grep, use find as suggested in other answers.

Or just use ack (Edit: or The Silver Searcher) and be done with it!

Here is the code for the MediaScannerConnection:

MyMediaConnectorClient client = new MyMediaConnectorClient(newfile);
MediaScannerConnection scanner = new MediaScannerConnection(context, client);
client.setScanner(scanner);
scanner.connect();

newfile is the File object of your new/saved file.

There is a way to do this, without resorting to the system call, you need to incorporate a wrapper something like this:

#include <sys/sendfile.h>
#include <fcntl.h>
#include <unistd.h>

/* 
** http://www.unixguide.net/unix/programming/2.5.shtml 
** About locking mechanism...
*/

int copy_file(const char *source, const char *dest){
   int fdSource = open(source, O_RDWR);

   /* Caf's comment about race condition... */
   if (fdSource > 0){
     if (lockf(fdSource, F_LOCK, 0) == -1) return 0; /* FAILURE */
   }else return 0; /* FAILURE */

   /* Now the fdSource is locked */

   int fdDest = open(dest, O_CREAT);
   off_t lCount;
   struct stat sourceStat;
   if (fdSource > 0 && fdDest > 0){
      if (!stat(source, &sourceStat)){
          int len = sendfile(fdDest, fdSource, &lCount, sourceStat.st_size);
          if (len > 0 && len == sourceStat.st_size){
               close(fdDest);
               close(fdSource);

               /* Sanity Check for Lock, if this is locked -1 is returned! */
               if (lockf(fdSource, F_TEST, 0) == 0){
                   if (lockf(fdSource, F_ULOCK, 0) == -1){
                      /* WHOOPS! WTF! FAILURE TO UNLOCK! */
                   }else{
                      return 1; /* Success */
                   }
               }else{
                   /* WHOOPS! WTF! TEST LOCK IS -1 WTF! */
                   return 0; /* FAILURE */
               }
          }
      }
   }
   return 0; /* Failure */
}

The above sample (error checking is omitted!) employs open, close and sendfile.

Edit: As caf has pointed out a race condition can occur between the open and stat so I thought I'd make this a bit more robust...Keep in mind that the locking mechanism varies from platform to platform...under Linux, this locking mechanism with lockf would suffice. If you want to make this portable, use the #ifdef macros to distinguish between different platforms/compilers...Thanks caf for spotting this...There is a link to a site that yielded "universal locking routines" here.

I have started using Costura.Fody to package (.net) assemblies and embed and preload native dlls. This also helps later, with distribution as you can send one file.

1. Install Costura Fody from Nuget.

2. In your C# project create a folder called costrua32. In there add any native dlls you which C# to load.

3. Once you have added them to this folder. Click on the properties window and change build action to "Embedded Resource"

4. Finally you need to amend the XML file called FodyWeavers.xml as follows. Here I am specifying load the sql dll first. (note you drop the .dll)

   Weavers
    Costura
     PreloadOrder
      SQLite.Interop
      tbb_debug
      tbb
     /PreloadOrder>
    /Costura
   /Weavers
   

The advantage of this is that you do not have to write any pre or post build events, and the end product is totally encapsulated in to one larger file.

streetno = { 1 : "Sachin Tendulkar",
            2 : "Dravid",
            3 : "Sehwag",
            4 : "Laxman",
            5 : "Kohli" }

And to retrieve values:

name = streetno.get(3, "default value")

Or

name = streetno[3]

That's using number as keys, put quotes around the numbers to use strings as keys.

I had this problem. Couldn't install apk via the Downloads app. However opening the apk in a file manager app allowed me to install it fine. Using OI File Manager on stock Nexus 7 4.2.1

Fluid layout in Bootstrap 3.

Unlike Boostrap 2, Bootstrap 3 doesn't have a .container-fluid mixin to make a fluid container. The .container is a fixed width responsive grid layout. In a large screen, there are excessive white spaces in both sides of one's Web page content.

container-fluid is added back in Bootstrap 3.1

A fluid grid layout uses all screen width and works better in large screen. It turns out that it is easy to create a fluid grid layout using Bootstrap 3 mixins. The following line makes a fluid responsive grid layout:

.container-fixed;

The .container-fixed mixin sets the content to the center of the screen and add paddings. It doesn't specifies a fixed page width.

Another approach is to use Eric Flowers' CSS style

.my-fluid-container {
    padding-left: 15px;
    padding-right: 15px;
    margin-left: auto;
    margin-right: auto;
}

This is how you can create a simple observable for static data.

let observable = Observable.create(observer => {
  setTimeout(() => {
    let users = [
      {username:"balwant.padwal",city:"pune"},
      {username:"test",city:"mumbai"}]

    observer.next(users); // This method same as resolve() method from Angular 1
    console.log("am done");
    observer.complete();//to show we are done with our processing
    // observer.error(new Error("error message"));
  }, 2000);

})

to subscribe to it is very easy

observable.subscribe((data)=>{
  console.log(data); // users array display
});

I hope this answer is helpful. We can use HTTP call instead static data.

A click is an event; you can't query an element and ask it whether it's being clicked on or not. How about this:

jQuery('#id').click(function () {
   // do some stuff
});

Then if you really wanted to, you could just have a loop that executes every few seconds with your // run function..

import os.path

os.path.abspath(os.pardir)

Vertical alignment doesn't work with floated elements, indeed. That's because float lifts the element from the normal flow of the document. You might want to use other vertical aligning techniques, like the ones based on transform, display: table, absolute positioning, line-height, js (last resort maybe) or even the plain old html table (maybe the first choice if the content is actually tabular). You'll find that there's a heated debate on this issue.

However, this is how you can vertically align YOUR 3 divs:

.wrap{
    width: 500px;
    overflow:hidden;    
    background: pink;
}

.left {
    width: 150px;       
    margin-right: 10px;
    background: yellow;  
    display:inline-block;
    vertical-align: middle; 
}

.left2 {
    width: 150px;    
    margin-right: 10px;
    background: aqua; 
    display:inline-block;
    vertical-align: middle; 
}

.right{
    width: 150px;
    background: orange;
    display:inline-block;
    vertical-align: middle; 
}

Not sure why you needed both fixed width, display: inline-block and floating.

Use below command to create a package.json file.

npm init 
npm init --yes or -y flag

[This method will generate a default package.json using information extracted from the current directory.]

Working with package.json

I got the same error when I execute ng build command in Visual Studio code. But I can build successfully when I execute same thing in Windows command line in following sequence.

Step 1.

set NODE_OPTIONS=--max_old_space_size=4096

Step 2.

ng build

I know it's kinda late answer but I just lost about half an hour debugging cause of this, It might save someone some time.

BE MINDFUL, If you use angular.equals() on objects that have property obj.$something (property name starts with $) those properties will get ignored in comparison.

Example:

var obj1 = {
  $key0: "A",
  key1: "value1",
  key2: "value2",
  key3: {a: "aa", b: "bb"}
}

var obj2 = {
  $key0: "B"
  key2: "value2",
  key1: "value1",
  key3: {a: "aa", b: "bb"}
}

angular.equals(obj1, obj2) //<--- would return TRUE (despite it's not true)

Let's presume your code also had an #else statement which defined a null stub function, addressing one of Jon Skeet's points. There's a second important distinction between the two.

Suppose the #if DEBUG or Conditional function exists in a DLL which is referenced by your main project executable. Using the #if, the evaluation of the conditional will be performed with regard to the library's compilation settings. Using the Conditional attribute, the evaluation of the conditional will be performed with regard to the compilation settings of the invoker.

Call the TreeView.OnAfterSelect() protected method after you programatically select the node.

Set your Rgui preferences for a large number of lines, then timestamp and save as file at suitable intervals.

You can define the _CRT_SECURE_NO_WARNINGS symbol to suppress them and undefine it to reinstate them back.

Implement toString() on the class.

I recommend the Apache Commons ToStringBuilder to make this easier. With it, you just have to write this sort of method:

public String toString() {
     return new ToStringBuilder(this).
       append("name", name).
       append("age", age).
       toString(); 
}

In order to get this sort of output:

Person@7f54[name=Stephen,age=29]

There is also a reflective implementation.

Note that the use of pow(x,y) is less efficient than x*x*x y times as shown and answered here https://stackoverflow.com/a/2940800/319728.

So if you're going for efficiency use x*x*x.

for angular 4, the working solution was to do inside the component

@HostListener('window:scroll', ['$event']) onScrollEvent($event){
  console.log($event);
  console.log("scrolling");
} 

You can convert it to a Map Object to store it, then change the values back to an ArrayList when you retrieve the SharedPreferences.

use the command prompt, as suggested. I figured out why explorer is so slow a while ago, it gives you an estimate of how long it will take to delete the files/folders. To do this, it has to scan the number of items and the size. This takes ages, hence the ridiculous wait with large folders.

Also, explorer will stop if there is a particular problem with a file,

In Python, we handle exceptions similar to other language, but the difference is some syntax difference, for example,

try:
    #Your code in which exception can occur
except <here we can put in a particular exception name>:
    # We can call that exception here also, like ZeroDivisionError()
    # now your code
# We can put in a finally block also
finally:
    # Your code...

Convert Date to String using this function

public String convertDateToString(Date date, String format) {
        String dateStr = null;
        DateFormat df = new SimpleDateFormat(format);
        try {
            dateStr = df.format(date);
        } catch (Exception ex) {
            System.out.println(ex);
        }
        return dateStr;
    }

From Convert Date to String in Java . And convert string to date again

public Date convertStringToDate(String dateStr, String format) {
        Date date = null;
        DateFormat df = new SimpleDateFormat(format);
        try {
            date = df.parse(dateStr);
        } catch (Exception ex) {
            System.out.println(ex);
        }
        return date;
    }

From Convert String to date in Java

You need to include a declaration of the printf() function.

#include <stdio.h>

Quote from the documentation:

The "standard" and "singleTop" modes differ from each other in just one respect: Every time there's new intent for a "standard" activity, a new instance of the class is created to respond to that intent. Each instance handles a single intent. Similarly, a new instance of a "singleTop" activity may also be created to handle a new intent. However, if the target task already has an existing instance of the activity at the top of its stack, that instance will receive the new intent (in an onNewIntent() call); a new instance is not created.

I'm not 100% sure what "already has an existing instance of the activity at the top of its stack" means, but perhaps your activity isn't meeting this condition.

Would singleTask or singleInstance work for you? Or perhaps you could try setting FLAG_ACTIVITY_SINGLE_TOP on the intent you are creating to see if that makes a difference, although I don't think it will.

Try this:

btn.requestFocusFromTouch();

If you want to take the formatted value of input do this :

$("input").datepicker({ dateFormat: 'dd, mm, yy' });

later in your code when the date is set you could get it by

dateVariable = $("input").val();

If you want just to take a formatted value with datepicker you might want to use the utility

dateString = $.datepicker.formatDate('dd, MM, yy', new Date("20 April 2012"));

I've updated the jsfiddle for experimenting with this

DateValue(CStr(Now()))

That's the best I've found. If you have the date as a string already you can just do:

DateValue("12/04/2012 04:56:15")

or

DateValue(*DateStringHere*)

Hope this helps someone...

if "my_data" in my_json_data:
         print json.dumps(my_json_data["my_data"])

it is similar to jason lee as he mentioned earlier:

in Jupyter notebook, you can access the current working directory by

pwd()

or by import OS from library and running os.getcwd()

i.e. for example

In[ ]: import os

       os.getcwd( )

out[ ]: :c\\users\\admin\\Desktop\\python    

        (#This is my working directory)

Changing Working Directory

For changing the Working Directory (much more similar to current W.d just you need to change from os.getcwd() to os.chdir('desired location')

In[ ]: import os

       os.chdir('c:user/chethan/Desktop')        (#This is where i want to update my w.d, 
                                                  like that choose your desired location)
out[  ]: 'c:user\\chethan\\Desktop'

You can try:

df[0] = df[0].str.strip()

or more specifically for all string columns

non_numeric_columns = list(set(df.columns)-set(df._get_numeric_data().columns))
df[non_numeric_columns] = df[non_numeric_columns].apply(lambda x : str(x).strip())

If you really want to use a sed command without installing a new Python module, you could simply do the following:

import subprocess
subprocess.call("sed command")

Same as the other answers (disabled isn't sent to the server, readonly is) but some browsers prevent highlighting of a disabled form, while read-only can still be highlighted (and copied).

http://www.w3schools.com/tags/att_input_disabled.asp

http://www.w3schools.com/tags/att_input_readonly.asp

A read-only field cannot be modified. However, a user can tab to it, highlight it, and copy the text from it.

If you want your image occupy the maximum possible space then the best option would be

android:layout_weight="1"
android:scaleType="fitCenter"

Just use

WHERE RAND() < 0.1 

to get 10% of the records or

WHERE RAND() < 0.01 

to get 1% of the records, etc.

Try it this way,

ArrayList<String> List_Of_Array = new ArrayList<String>();
List_Of_Array.add("A");
List_Of_Array.add("B");
List_Of_Array.add("C");
List_Of_Array.add("D");
List_Of_Array.add("E");
List_Of_Array.add("F");
List_Of_Array.add("G");
List_Of_Array.add("H");

int i[] = {5,3,1};

for (int j = 0; j < i.length; j++) {
    List_Of_Array.remove(i[j]);
}

It looks like you can use msdb.dbo.sysjobactivity, checking for a record with a non-null start_execution_date and a null stop_execution_date, meaning the job was started, but has not yet completed.

This would give you currently running jobs:

SELECT sj.name
   , sja.*
FROM msdb.dbo.sysjobactivity AS sja
INNER JOIN msdb.dbo.sysjobs AS sj ON sja.job_id = sj.job_id
WHERE sja.start_execution_date IS NOT NULL
   AND sja.stop_execution_date IS NULL

Another Simple way is to create & invoke the function validate() when the form loads & when submit button is clicked. By using checked property we check whether the checkbox is selected or not. cbox[0] has an index 0 which is used to access the first value (i.e Male) with name="gender"

You can do the following:

function validate() {_x000D_
  var cbox = document.forms["myForm"]["gender"];_x000D_
  if (_x000D_
    cbox[0].checked == false &&_x000D_
    cbox[1].checked == false &&_x000D_
    cbox[2].checked == false_x000D_
  ) {_x000D_
    alert("Please Select Gender");_x000D_
    return false;_x000D_
  } else {_x000D_
    alert("Successfully Submited");_x000D_
    return true;_x000D_
  }_x000D_
}

<form onload="return validate()" name="myForm">_x000D_
  <input type="checkbox" name="gender" value="male"> Male_x000D_
_x000D_
  <input type="checkbox" name="gender" value="female"> Female_x000D_
_x000D_
  <input type="checkbox" name="gender" value="other"> Other <br>_x000D_
_x000D_
  <input type="submit" name="submit" value="Submit" onclick="validate()">_x000D_
</form>

Demo: CodePen

EDIT: This is quite old, and ugly, don't do this. You should use callbacks: https://stackoverflow.com/a/5316755/591257

EDIT 2: See the fetch API

Had same problem, solved it this way, using a global var. Not sure if it's the best but surely works. On error you get an empty string (myVar = ''), so you can handle that as needed.

var myVar = '';
function isSession(selector) {
  $.ajax({
    'type': 'POST',
    'url': '/order.html',
    'data': {
      'issession': 1,
      'selector': selector
    },
    'dataType': 'html',
    'success': function(data) {
      myVar = data;
    },
    'error': function() {
      alert('Error occured');
    }
  });
  return myVar;
}

Note: This answer is a pure Gradle answer, I use this in IntelliJ on a regular basis but I don't know how the integration is with Android Studio. I am a believer in knowing what is going on for me, so this is how I use Gradle and Android.

TL;DR Full Example - https://github.com/ethankhall/driving-time-tracker/

Disclaimer: This is a project I am/was working on.

Gradle has a defined structure ( that you can change, link at the bottom tells you how ) that is very similar to Maven if you have ever used it.

Project Root
+-- src
|   +-- main (your project)
|   |   +-- java (where your java code goes)
|   |   +-- res  (where your res go)
|   |   +-- assets (where your assets go)
|   |   \-- AndroidManifest.xml
|   \-- instrumentTest (test project)
|       \-- java (where your java code goes)
+-- build.gradle
\-- settings.gradle

If you only have the one project, the settings.gradle file isn't needed. However you want to add more projects, so we need it.

Now let's take a peek at that build.gradle file. You are going to need this in it (to add the android tools)

build.gradle

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.3'
    }
}

Now we need to tell Gradle about some of the Android parts. It's pretty simple. A basic one (that works in most of my cases) looks like the following. I have a comment in this block, it will allow me to specify the version name and code when generating the APK.

build.gradle

apply plugin: "android"
android {
        compileSdkVersion 17
        /*
        defaultConfig {
            versionCode = 1
            versionName = "0.0.0"
        }
        */
    }

Something we are going to want to add, to help out anyone that hasn't seen the light of Gradle yet, a way for them to use the project without installing it.

build.gradle

task wrapper(type: org.gradle.api.tasks.wrapper.Wrapper) {
    gradleVersion = '1.4'
}

So now we have one project to build. Now we are going to add the others. I put them in a directory, maybe call it deps, or subProjects. It doesn't really matter, but you will need to know where you put it. To tell Gradle where the projects are you are going to need to add them to the settings.gradle.

Directory Structure:

Project Root
+-- src (see above)
+-- subProjects (where projects are held)
|   +-- reallyCoolProject1 (your first included project)
|       \-- See project structure for a normal app
|   \-- reallyCoolProject2 (your second included project)
|       \-- See project structure for a normal app
+-- build.gradle
\-- settings.gradle

settings.gradle:

include ':subProjects:reallyCoolProject1'
include ':subProjects:reallyCoolProject2'

The last thing you should make sure of is the subProjects/reallyCoolProject1/build.gradle has apply plugin: "android-library" instead of apply plugin: "android".

Like every Gradle project (and Maven) we now need to tell the root project about it's dependency. This can also include any normal Java dependencies that you want.

build.gradle

dependencies{
    compile 'com.fasterxml.jackson.core:jackson-core:2.1.4'
    compile 'com.fasterxml.jackson.core:jackson-databind:2.1.4'
    compile project(":subProjects:reallyCoolProject1")
    compile project(':subProjects:reallyCoolProject2')
}

I know this seems like a lot of steps, but they are pretty easy once you do it once or twice. This way will also allow you to build on a CI server assuming you have the Android SDK installed there.

NDK Side Note: If you are going to use the NDK you are going to need something like below. Example build.gradle file can be found here: https://gist.github.com/khernyo/4226923

build.gradle

task copyNativeLibs(type: Copy) {
    from fileTree(dir: 'libs', include: '**/*.so' )  into  'build/native-libs'
}
tasks.withType(Compile) { compileTask -> compileTask.dependsOn copyNativeLibs }

clean.dependsOn 'cleanCopyNativeLibs'

tasks.withType(com.android.build.gradle.tasks.PackageApplication) { pkgTask ->
  pkgTask.jniDir new File('build/native-libs')
}

Sources:

1. http://tools.android.com/tech-docs/new-build-system/user-guide
2. https://gist.github.com/khernyo/4226923
3. https://github.com/ethankhall/driving-time-tracker/

To hide both status bar and action bar and make your activity full-screen use the following code in your activity's onResume() or onWindowFocusChanged() method:

@Override
protected void onResume() {
    super.onResume();
    View decorView = getWindow().getDecorView();
    decorView.setSystemUiVisibility(
            View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
            | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_FULLSCREEN);
}

You can find more Information in the following links:

• https://developer.android.com/training/system-ui/immersive#EnableFullscreen
• Full Screen without navigation & status bars
• How to hide the soft-key bar on Android phone?

Note: Using the xml solutions provide in this thread I could only hide the status bar but not the navigation bar.

As of R 3.3.0, one may use startsWith() as a faster alternative to grepl():

which(startsWith(mydata_2$height_seca1, 1578))

Use document.location.reload(true) it will not load page from cache.

even adding a return statement brings up this exception, for which only solution is this code:

if(!response.isCommitted())
// Place another redirection

Using sets will be screaming fast if you have any volume of data

If you are willing to use sets, you have the isdisjoint() method which will check to see if the intersection between your operator list and your other list is empty.

MyOper = set(['AND', 'OR', 'NOT'])
MyList = set(['c1', 'c2', 'NOT', 'c3'])

while not MyList.isdisjoint(MyOper):
    print "No boolean Operator"

http://docs.python.org/library/stdtypes.html#set.isdisjoint

For Ubuntu Server 15.04 and 16.04 you need execute only this command

sudo apt-get install --reinstall mongodb

A cookie is basically just an item in a dictionary. Each item has a key and a value. For authentication, the key could be something like 'username' and the value would be the username. Each time you make a request to a website, your browser will include the cookies in the request, and the host server will check the cookies. So authentication can be done automatically like that.

To set a cookie, you just have to add it to the response the server sends back after requests. The browser will then add the cookie upon receiving the response.

There are different options you can configure for the cookie server side, like expiration times or encryption. An encrypted cookie is often referred to as a signed cookie. Basically the server encrypts the key and value in the dictionary item, so only the server can make use of the information. So then cookie would be secure.

A browser will save the cookies set by the server. In the HTTP header of every request the browser makes to that server, it will add the cookies. It will only add cookies for the domains that set them. Example.com can set a cookie and also add options in the HTTP header for the browsers to send the cookie back to subdomains, like sub.example.com. It would be unacceptable for a browser to ever sends cookies to a different domain.

This also happens (and is particularly confounding) if you forgot that you created a Windows symlink to a different directory, and that other directory doesn't have appropriate permissions.

You can use

from collections import Counter

It supports Python 2.7,read more information here

1.

>>>c = Counter('abracadabra')
>>>c.most_common(3)
[('a', 5), ('r', 2), ('b', 2)]

use dict

>>>d={1:'one', 2:'one', 3:'two'}
>>>c = Counter(d.values())
[('one', 2), ('two', 1)]

But, You have to read the file first, and converted to dict.

2. it's the python docs example,use re and Counter

# Find the ten most common words in Hamlet
>>> import re
>>> words = re.findall(r'\w+', open('hamlet.txt').read().lower())
>>> Counter(words).most_common(10)
[('the', 1143), ('and', 966), ('to', 762), ('of', 669), ('i', 631),
 ('you', 554),  ('a', 546), ('my', 514), ('hamlet', 471), ('in', 451)]

"commentLine" is the name of function you are looking for. This function coment and uncoment with the same keybinding

Declare them outside the subroutines, like this:

Public wbA as Workbook
Public wbB as Workbook
Sub MySubRoutine()
    Set wbA = Workbooks.Open("C:\file.xlsx")
    Set wbB = Workbooks.Open("C:\file2.xlsx")
    OtherSubRoutine
End Sub
Sub OtherSubRoutine()
    MsgBox wbA.Name, vbInformation
End Sub

Alternately, you can pass variables between subroutines:

Sub MySubRoutine()
Dim wbA as Workbook
Dim wbB as Workbook
    Set wbA = Workbooks.Open("C:\file.xlsx")
    Set wbB = Workbooks.Open("C:\file2.xlsx")
    OtherSubRoutine wbA, wbB
End Sub
Sub OtherSubRoutine(wb1 as Workbook, wb2 as Workbook)
    MsgBox wb1.Name, vbInformation
    MsgBox wb2.Name, vbInformation
End Sub

Or use Functions to return values:

Sub MySubroutine()
    Dim i as Long
    i = MyFunction()
    MsgBox i
End Sub
Function MyFunction()
    'Lots of code that does something
    Dim x As Integer, y as Double
    For x = 1 to 1000
        'Lots of code that does something
    Next
    MyFunction = y
End Function

In the second method, within the scope of OtherSubRoutine you refer to them by their parameter names wb1 and wb2. Passed variables do not need to use the same names, just the same variable types. This allows you some freedom, for example you have a loop over several workbooks, and you can send each workbook to a subroutine to perform some action on that Workbook, without making all (or any) of the variables public in scope.

A Note About User Forms

Personally I would recommend keeping Option Explicit in all of your modules and forms (this prevents you from instantiating variables with typos in their names, like lCoutn when you meant lCount etc., among other reasons).

If you're using Option Explicit (which you should), then you should qualify module-scoped variables for style and to avoid ambiguity, and you must qualify user-form Public scoped variables, as these are not "public" in the same sense. For instance, i is undefined, though it's Public in the scope of UserForm1:

You can refer to it as UserForm1.i to avoid the compile error, or since forms are New-able, you can create a variable object to contain reference to your form, and refer to it that way:

NB: In the above screenshots x is declared Public x as Long in another standard code module, and will not raise the compilation error. It may be preferable to refer to this as Module2.x to avoid ambiguity and possible shadowing in case you re-use variable names...

The old syntax, with just listing the tables, and using the WHERE clause to specify the join criteria, is being deprecated in most modern databases.

It's not just for show, the old syntax has the possibility of being ambiguous when you use both INNER and OUTER joins in the same query.

Let me give you an example.

Let's suppose you have 3 tables in your system:

Company
Department
Employee

Each table contain numerous rows, linked together. You got multiple companies, and each company can have multiple departments, and each department can have multiple employees.

Ok, so now you want to do the following:

List all the companies, and include all their departments, and all their employees. Note that some companies don't have any departments yet, but make sure you include them as well. Make sure you only retrieve departments that have employees, but always list all companies.

So you do this:

SELECT * -- for simplicity
FROM Company, Department, Employee
WHERE Company.ID *= Department.CompanyID
  AND Department.ID = Employee.DepartmentID

Note that the last one there is an inner join, in order to fulfill the criteria that you only want departments with people.

Ok, so what happens now. Well, the problem is, it depends on the database engine, the query optimizer, indexes, and table statistics. Let me explain.

If the query optimizer determines that the way to do this is to first take a company, then find the departments, and then do an inner join with employees, you're not going to get any companies that don't have departments.

The reason for this is that the WHERE clause determines which rows end up in the final result, not individual parts of the rows.

And in this case, due to the left join, the Department.ID column will be NULL, and thus when it comes to the INNER JOIN to Employee, there's no way to fulfill that constraint for the Employee row, and so it won't appear.

On the other hand, if the query optimizer decides to tackle the department-employee join first, and then do a left join with the companies, you will see them.

So the old syntax is ambiguous. There's no way to specify what you want, without dealing with query hints, and some databases have no way at all.

Enter the new syntax, with this you can choose.

For instance, if you want all companies, as the problem description stated, this is what you would write:

SELECT *
FROM Company
     LEFT JOIN (
         Department INNER JOIN Employee ON Department.ID = Employee.DepartmentID
     ) ON Company.ID = Department.CompanyID

Here you specify that you want the department-employee join to be done as one join, and then left join the results of that with the companies.

Additionally, let's say you only want departments that contains the letter X in their name. Again, with old style joins, you risk losing the company as well, if it doesn't have any departments with an X in its name, but with the new syntax, you can do this:

SELECT *
FROM Company
     LEFT JOIN (
         Department INNER JOIN Employee ON Department.ID = Employee.DepartmentID
     ) ON Company.ID = Department.CompanyID AND Department.Name LIKE '%X%'

This extra clause is used for the joining, but is not a filter for the entire row. So the row might appear with company information, but might have NULLs in all the department and employee columns for that row, because there is no department with an X in its name for that company. This is hard with the old syntax.

This is why, amongst other vendors, Microsoft has deprecated the old outer join syntax, but not the old inner join syntax, since SQL Server 2005 and upwards. The only way to talk to a database running on Microsoft SQL Server 2005 or 2008, using the old style outer join syntax, is to set that database in 8.0 compatibility mode (aka SQL Server 2000).

Additionally, the old way, by throwing a bunch of tables at the query optimizer, with a bunch of WHERE clauses, was akin to saying "here you are, do the best you can". With the new syntax, the query optimizer has less work to do in order to figure out what parts goes together.

So there you have it.

LEFT and INNER JOIN is the wave of the future.

You can do it like this, but sorry my english is not good enough.

First, get home base url with this simple code..

I've tested this code on my local server and public and the result is good.

<?php

function home_base_url(){   

// first get http protocol if http or https

$base_url = (isset($_SERVER['HTTPS']) &&

$_SERVER['HTTPS']!='off') ? 'https://' : 'http://';

// get default website root directory

$tmpURL = dirname(__FILE__);

// when use dirname(__FILE__) will return value like this "C:\xampp\htdocs\my_website",

//convert value to http url use string replace, 

// replace any backslashes to slash in this case use chr value "92"

$tmpURL = str_replace(chr(92),'/',$tmpURL);

// now replace any same string in $tmpURL value to null or ''

// and will return value like /localhost/my_website/ or just /my_website/

$tmpURL = str_replace($_SERVER['DOCUMENT_ROOT'],'',$tmpURL);

// delete any slash character in first and last of value

$tmpURL = ltrim($tmpURL,'/');

$tmpURL = rtrim($tmpURL, '/');


// check again if we find any slash string in value then we can assume its local machine

    if (strpos($tmpURL,'/')){

// explode that value and take only first value

       $tmpURL = explode('/',$tmpURL);

       $tmpURL = $tmpURL[0];

      }

// now last steps

// assign protocol in first value

   if ($tmpURL !== $_SERVER['HTTP_HOST'])

// if protocol its http then like this

      $base_url .= $_SERVER['HTTP_HOST'].'/'.$tmpURL.'/';

    else

// else if protocol is https

      $base_url .= $tmpURL.'/';

// give return value

return $base_url; 

}

?>

// and test it

echo home_base_url();

output will like this :

local machine : http://localhost/my_website/ or https://myhost/my_website 

public : http://www.my_website.com/ or https://www.my_website.com/

use home_base_url function at index.php of your website and define it

and then you can use this function to load scripts, css and content via url like

<?php

echo '<script type="text/javascript" src="'.home_base_url().'js/script.js"></script>'."\n";

?>

will create output like this :

<script type="text/javascript" src="http://www.my_website.com/js/script.js"></script>

and if this script works fine,,!

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

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

isset($cOTLdata['char_data'])

Which means the line should look something like this:

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

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

for anyone yet interested:

the best way I found is to use the inflate static method of View.

View inflatedView = View.inflate(context, yourViewXML, yourLinearLayout);

where yourViewXML is something like R.layout.myView

please notice that you need a ViewGroup in order to add a view (which is any layout you can think of)

so as an example lets say you have a fragment which it view already been inflated and you know that the root view is a layout, and you want to add a view to it:

    View view = getView(); // returns base view of the fragment
    if (view == null)
        return;
    if (!(view instanceof ViewGroup))
        return;

    ViewGroup viewGroup = (ViewGroup) view;
    View popup = View.inflate(viewGroup.getContext(), R.layout.someView, viewGroup);

There are a few ways to handle that; Vanilla JavaScript can do it quite nicely:

function code(e) {
    e = e || window.event;
    return(e.keyCode || e.which);
}
window.onload = function(){
    document.onkeypress = function(e){
        var key = code(e);
        // do something with key
    };
};

Or a more structured way of handling it:

(function(d){
    var modern = (d.addEventListener), event = function(obj, evt, fn){
        if(modern) {
            obj.addEventListener(evt, fn, false);
        } else {
            obj.attachEvent("on" + evt, fn);
        }
    }, code = function(e){
        e = e || window.event;
        return(e.keyCode || e.which);
    }, init = function(){
        event(d, "keypress", function(e){
            var key = code(e);
            // do stuff with key here
        });
    };
    if(modern) {
        d.addEventListener("DOMContentLoaded", init, false);
    } else {
        d.attachEvent("onreadystatechange", function(){
            if(d.readyState === "complete") {
                init();
            }
        });
    }
})(document);

The problem here mainly, just Cast the field like this cast(field as varchar) or cast(fields as date)

Use an array, not a string, as given as guidance in BashFAQ #50.

Using a string is extremely bad security practice: Consider the case where password (or a where clause in the query, or any other component) is user-provided; you don't want to eval a password containing $(rm -rf .)!

Just Running A Local Command

cmd=( mysql AMORE -u username -ppassword -h localhost -e "SELECT  host  FROM amoreconfig" )
"${cmd[@]}"

Printing Your Command Unambiguously

cmd=( mysql AMORE -u username -ppassword -h localhost -e "SELECT  host  FROM amoreconfig" )
printf 'Proposing to run: '
printf '%q ' "${cmd[@]}"
printf '\n'

Running Your Command Over SSH (Method 1: Using Stdin)

cmd=( mysql AMORE -u username -ppassword -h localhost -e "SELECT  host  FROM amoreconfig" )
printf -v cmd_str '%q ' "${cmd[@]}"
ssh other_host 'bash -s' <<<"$cmd_str"

Running Your Command Over SSH (Method 2: Command Line)

cmd=( mysql AMORE -u username -ppassword -h localhost -e "SELECT  host  FROM amoreconfig" )
printf -v cmd_str '%q ' "${cmd[@]}"
ssh other_host "bash -c $cmd_str"

This kind of error usually means that some parts of (JS) code were not loaded. That the state which is inside of ui-sref is missing.

There is a working example

I am not an expert in ionic, so this example should show that it would be working, but I used some more tricks (parent for tabs)

This is a bit adjusted state def:

.config(function($stateProvider, $urlRouterProvider){
  $urlRouterProvider.otherwise("/index.html");

    $stateProvider

    .state('app', {
      abstract: true,
      templateUrl: "tpl.menu.html",
    })

  $stateProvider.state('index', {
    url: '/',
    templateUrl: "tpl.index.html",
    parent: "app",
  });


  $stateProvider.state('register', {
    url: "/register",
    templateUrl: "tpl.register.html",
    parent: "app",
  });

  $urlRouterProvider.otherwise('/');
}) 

And here we have the parent view with tabs, and their content:

<ion-tabs class="tabs-icon-top">

  <ion-tab title="Index" icon="icon ion-home" ui-sref="index">
    <ion-nav-view name=""></ion-nav-view>
  </ion-tab>

  <ion-tab title="Register" icon="icon ion-person" ui-sref="register">
    <ion-nav-view name=""></ion-nav-view>
  </ion-tab>

</ion-tabs>

Take it more than an example of how to make it running and later use ionic framework the right way...Check that example here

Here is similar Q & A with an example using the named views (for sure better solution) ionic routing issue, shows blank page

Improved version with named views in a tab is here: http://plnkr.co/edit/Mj0rUxjLOXhHIelt249K?p=preview

  <ion-tab title="Index" icon="icon ion-home" ui-sref="index">
    <ion-nav-view name="index"></ion-nav-view>
  </ion-tab>

  <ion-tab title="Register" icon="icon ion-person" ui-sref="register">
    <ion-nav-view name="register"></ion-nav-view>
  </ion-tab>

targeting named views:

  $stateProvider.state('index', {
    url: '/',
    views: { "index" : { templateUrl: "tpl.index.html" } },
    parent: "app",
  });


  $stateProvider.state('register', {
    url: "/register",
    views: { "register" : { templateUrl: "tpl.register.html", } },
    parent: "app",
  });

If you have a double array named numbers, you can use:

firstNum = numbers[0];
lastNum = numbers[numbers.length-1];

or with ArrayList

firstNum = numbers.get(0);
lastNum = numbers.get(numbers.size() - 1); 

You could try

TortoiseProc.exe /command:checkout /rev:1234

to get revision 1234.

I'm not 100% sure the /rev option is compatible with checkout, but I got the idea from some TortoiseProc documentation.

We just have to use @ in front of the deprecated function. No need to change anything as mentioned in above posts. For example: if(!@session_is_registered("username")){ }. Just put @ and problem is solved.

Use

"$filepath"_newstap.sh

or

${filepath}_newstap.sh

or

$filepath\_newstap.sh

_ is a valid character in identifiers. Dot is not, so the shell tried to interpolate $filepath_newstap.

You can use set -u to make the shell exit with an error when you reference an undefined variable.

alternatively, you can try writing a specific element:

    //label[1] is the first element.
    el =  await driver.findElement(By.xpath("//div[@class=\"facetContainerDiv\"]/div/label[1]/input")));
    await el.click();

More information can be found here: https://www.browserstack.com/guide/locators-in-selenium

function openInNewTab(href) {
  Object.assign(document.createElement('a'), {
    target: '_blank',
    href: href,
  }).click();
}

It creates a virtual a element, gives it target="_blank" so it opens in a new tab, gives it proper url href and then clicks it.

and then you can use it like:

openInNewTab("https://google.com"); 

Important note:

openInNewTab (as well as any other solution on this page) must be called during the so-called 'trusted event' callback - eg. during click event (not necessary in callback function directly, but during click action). Otherwise opening a new page will be blocked by the browser

If you call it manually at some random moment (e.g., inside an interval or after server response) - it might be blocked by the browser (which makes sense as it'd be a security risk and might lead to poor user experience)

Like this

#if defined(LINUX) || defined(ANDROID)

The commands module is a reasonably high-level way to do this:

import commands
status, output = commands.getstatusoutput("cat /etc/services")

status is 0, output is the contents of /etc/services.

Getting a valid TZ Database timezone name in PHP is a two-step process:

1. With JavaScript, get timezone offset in minutes through getTimezoneOffset. This offset will be positive if the local timezone is behind UTC and negative if it is ahead. So you must add an opposite sign to the offset.

   var timezone_offset_minutes = new Date().getTimezoneOffset();
   timezone_offset_minutes = timezone_offset_minutes == 0 ? 0 : -timezone_offset_minutes;
   

   Pass this offset to PHP.

2. In PHP convert this offset into a valid timezone name with timezone_name_from_abbr function.

   // Just an example.
   $timezone_offset_minutes = -360;  // $_GET['timezone_offset_minutes']
   
   // Convert minutes to seconds
   $timezone_name = timezone_name_from_abbr("", $timezone_offset_minutes*60, false);
   
   // America/Chicago
   echo $timezone_name;</code></pre>
   

I've written a blog post on it: How to Detect User Timezone in PHP. It also contains a demo.

Just in case somebody still looks for it, I did it on VS 2008 C#.

On the Event ColumnHeaderMouseClick, add a databinding for the gridview, and send the order by field like a parameter. You can get the clicked field as follows:

dgView.Columns[e.ColumnIndex].Name

In my case the header's names are similar to view field names.

There is an indexOf method that all arrays have (except Internet Explorer 8 and below) that will return the index of an element in the array, or -1 if it's not in the array:

if (yourArray.indexOf("someString") > -1) {
    //In the array!
} else {
    //Not in the array
}

If you need to support old IE browsers, you can polyfill this method using the code in the MDN article.

Here are some supplemental examples to see the raw text that Postman passes in the request. You can see this by opening the Postman console:

form-data

Header

content-type: multipart/form-data; boundary=--------------------------590299136414163472038474

Body

key1=value1key2=value2

x-www-form-urlencoded

Header

Content-Type: application/x-www-form-urlencoded

Body

key1=value1&key2=value2

Raw text/plain

Header

Content-Type: text/plain

Body

This is some text.

Raw json

Header

Content-Type: application/json

Body

{"key1":"value1","key2":"value2"}

SUDS is the way to go, no question about it.

from PyPDF2 import PdfFileMerger
import webbrowser
import os
dir_path = os.path.dirname(os.path.realpath(__file__))

def list_files(directory, extension):
    return (f for f in os.listdir(directory) if f.endswith('.' + extension))

pdfs = list_files(dir_path, "pdf")

merger = PdfFileMerger()

for pdf in pdfs:
    merger.append(open(pdf, 'rb'))

with open('result.pdf', 'wb') as fout:
    merger.write(fout)

webbrowser.open_new('file://'+ dir_path + '/result.pdf')

Git Repo: https://github.com/mahaguru24/Python_Merge_PDF.git

That problem would be a nice demonstration for use of closures. The idea is that a function uses a variable of outer scope. Here is an example...

setInterval(makeClosure("Snowden"), 1000)

function makeClosure(name) {
var ret

ret = function(){
    console.log("Hello, " + name);
}

return ret;
}

Function "makeClosure" returns another function, which has access to outer scope variable "name". So, basically, you need pass in whatever variables to "makeClosure" function and use them in function assigned to "ret" variable. Affectingly, setInterval will execute function assigned to "ret".

There's a bit more to it than just local vs global. Global variables created with var are different than those created without. Consider this:

var foo = 1; // declared properly
bar = 2; // implied global
window.baz = 3; // global via window object

Based on the answers so far, these global variables, foo, bar, and baz are all equivalent. This is not the case. Global variables made with var are (correctly) assigned the internal [[DontDelete]] property, such that they cannot be deleted.

delete foo; // false
delete bar; // true
delete baz; // true

foo; // 1
bar; // ReferenceError
baz; // ReferenceError

This is why you should always use var, even for global variables.

I feel this question need a bit more details. My answer is inspired from the Android Programming, The Big Nerd Ranch Guide (2nd edition).

By default, JavaScript is off in WebView. You do not always need to have it on, but for some apps, might do require it.

Loading the URL has to be done after configuring the WebView, so you do that last. Before that, you turn JavaScript on by calling getSettings() to get an instance of WebSettings and calling WebSettings.setJavaScriptEnabled(true). WebSettings is the first of the three ways you can modify your WebView. It has various properties you can set, like the user agent string and text size.

After that, you configure your WebViewClient. WebViewClient is an event interface. By providing your own implementation of WebViewClient, you can respond to rendering events. For example, you could detect when the renderer starts loading an image from a particular URL or decide whether to resubmit a POST request to the server.

WebViewClient has many methods you can override, most of which you will not deal with. However, you do need to replace the default WebViewClient’s implementation of shouldOverrideUrlLoading(WebView, String). This method determines what will happen when a new URL is loaded in the WebView, like by pressing a link. If you return true, you are saying, “Do not handle this URL, I am handling it myself.” If you return false, you are saying, “Go ahead and load this URL, WebView, I’m not doing anything with it.”

The default implementation fires an implicit intent with the URL, just like you did earlier. Now, though, this would be a severe problem. The first thing some Web Applications does is redirect you to the mobile version of the website. With the default WebViewClient, that means that you are immediately sent to the user’s default web browser. This is just what you are trying to avoid. The fix is simple – just override the default implementation and return false.

Use WebChromeClient to spruce things up Since you are taking the time to create your own WebView, let’s spruce it up a bit by adding a progress bar and updating the toolbar’s subtitle with the title of the loaded page.

To hook up the ProgressBar, you will use the second callback on WebView: WebChromeClient.

WebViewClient is an interface for responding to rendering events; WebChromeClient is an event interface for reacting to events that should change elements of chrome around the browser. This includes JavaScript alerts, favicons, and of course updates for loading progress and the title of the current page.

Hook it up in onCreateView(…). Using WebChromeClient to spruce things up Progress updates and title updates each have their own callback method, onProgressChanged(WebView, int) and onReceivedTitle(WebView, String). The progress you receive from onProgressChanged(WebView, int) is an integer from 0 to 100. If it is 100, you know that the page is done loading, so you hide the ProgressBar by setting its visibility to View.GONE.

Disclaimer: This information was taken from Android Programming: The Big Nerd Ranch Guide with permission from the authors. For more information on this book or to purchase a copy, please visit bignerdranch.com.