There is no operator, but there is a method.

Math.pow(2, 3) // 8.0

Math.pow(3, 2) // 9.0

FYI, a common mistake is to assume 2 ^ 3 is 2 to the 3rd power. It is not. The caret is a valid operator in Java (and similar languages), but it is binary xor.

The lack of an exponential operator for C# was a big annoyance for us when looking for a new language to convert our calculation software to from the good ol' vb6.

I'm glad we went with C# but it still annoys me whenever I'm writing a complex equation including exponents. The Math.Pow() method makes equations quite hard to read IMO.

Our solution was to create a special DoubleX class where we override the ^-operator (see below)

This works fairly well as long as you declare at least one of the variables as DoubleX:

DoubleX a = 2;
DoubleX b = 3;

Console.WriteLine($"a = {a}, b = {b}, a^b = {a ^ b}");

or use an explicit converter on standard doubles:

double c = 2;
double d = 3;

Console.WriteLine($"c = {c}, d = {d}, c^d = {c ^ (DoubleX)d}");     // Need explicit converter

One problem with this method though is that the exponent is calculated in the wrong order compared to other operators. This can be avoided by always putting an extra ( ) around the operation which again makes it a bit harder to read the equations:

DoubleX a = 2;
DoubleX b = 3;

Console.WriteLine($"a = {a}, b = {b}, 3+a^b = {3 + a ^ b}");        // Wrong result
Console.WriteLine($"a = {a}, b = {b}, 3+a^b = {3 + (a ^ b)}");      // Correct result

I hope this can be of help to others who uses a lot of complex equations in their code, and maybe someone even has an idea of how to improve this method?!

DoubleX class:

using System;

namespace ExponentialOperator
{
    /// <summary>
    /// Double class that uses ^ as exponential operator
    /// </summary>
    public class DoubleX
    {
        #region ---------------- Fields ----------------

        private readonly double _value;

        #endregion ------------- Fields ----------------

        #region -------------- Properties --------------

        public double Value
        {
            get { return _value; }
        }

        #endregion ----------- Properties --------------

        #region ------------- Constructors -------------

        public DoubleX(double value)
        {
            _value = value;
        }

        public DoubleX(int value)
        {
            _value = Convert.ToDouble(value);
        }

        #endregion ---------- Constructors -------------

        #region --------------- Methods ----------------

        public override string ToString()
        {
            return _value.ToString();
        }

        #endregion ------------ Methods ----------------

        #region -------------- Operators ---------------

        // Change the ^ operator to be used for exponents.

        public static DoubleX operator ^(DoubleX value, DoubleX exponent)
        {
            return Math.Pow(value, exponent);
        }

        public static DoubleX operator ^(DoubleX value, double exponent)
        {
            return Math.Pow(value, exponent);
        }

        public static DoubleX operator ^(double value, DoubleX exponent)
        {
            return Math.Pow(value, exponent);
        }

        public static DoubleX operator ^(DoubleX value, int exponent)
        {
            return Math.Pow(value, exponent);
        }

        #endregion ----------- Operators ---------------

        #region -------------- Converters --------------

        // Allow implicit convertion

        public static implicit operator DoubleX(double value)
        {
            return new DoubleX(value);
        }

        public static implicit operator DoubleX(int value)
        {
            return new DoubleX(value);
        }

        public static implicit operator Double(DoubleX value)
        {
            return value._value;
        }

        #endregion ----------- Converters --------------
    }
}

Don't :-

xyz = Blogs.objects.get(user_id=id)

Use:-

xyz = Blogs.objects.all().filter(user_id=id)

require(reshape2)

T <- melt(df, id = c("A"))

T <- dcast(T, A ~ variable, sum)

I am not certain the exact advantages over aggregate.

I got this problem as well using the drupal 7 Location module. Autofilling all empty locations resulted in this error. Executing one of the requests to the location api manually resulted in this error in the returned JSON:

"Browser API keys cannot have referer restrictions when used with this API."

Resolving the problem then was easy: create a new key without any restrictions and use it only for Geocoding.

Note for those new to google api keys: by restrictions they mean limiting requests using an api key to specific domains / subdomains. (eg. only request from http://yourdomain.com are allowed).

Best way to do this is to add a data attribute to the field (textbox) where you want to avoid the cut,copy and paste.

Just create a method for the same which is as follows :-

function ignorePaste() {

$("[data-ignorepaste]").bind("cut copy paste", function (e) {
            e.preventDefault(); //prevent the default behaviour 
        });

};

Then once when you add the above code simply add the data attribute to the field where you want to ignore cut copy paste. in our case your add a data attribute to confirm email text box as below :-

Confirm Email: <input type="textbox" id= "confirmEmail" data-ignorepaste=""/>

Call the method ignorePaste()

So in this way you will be able to use this throughout the application, all you need to do is just add the data attribute where you want to ignore cut copy paste

https://jsfiddle.net/0ac6pkbf/21/

Does the unsigned keyword default to a data type in C++

Yes,signed and unsigned may also be used as standalone type specifiers

The integer data types char, short, long and int can be either signed or unsigned depending on the range of numbers needed to be represented. Signed types can represent both positive and negative values, whereas unsigned types can only represent positive values (and zero).

An unsigned integer containing n bits can have a value between 0 and 2ⁿ - 1 (which is 2ⁿ different values).

However,signed and unsigned may also be used as standalone type specifiers, meaning the same as signed int and unsigned int respectively. The following two declarations are equivalent:

unsigned NextYear;
unsigned int NextYear;

My situation was slightly different, I did git reset HEAD~ three times.

To undo it I had to do

git reset HEAD@{3}

so you should be able to do

git reset HEAD@{N}

But if you have done git reset using

git reset HEAD~3

you will need to do

git reset HEAD@{1}

{N} represents the number of operations in reflog, as Mark pointed out in the comments.

I think you need to add some context to your question. However, basic information about these things can be found here:

window.opener https://developer.mozilla.org/en-US/docs/Web/API/Window.opener

I've used window.opener mostly when opening a new window that acted as a dialog which required user input, and needed to pass information back to the main window. However this is restricted by origin policy, so you need to ensure both the content from the dialog and the opener window are loaded from the same origin.

window.parent https://developer.mozilla.org/en-US/docs/Web/API/Window.parent

I've used this mostly when working with IFrames that need to communicate with the window object that contains them.

window.top https://developer.mozilla.org/en-US/docs/Web/API/Window.top

This is useful for ensuring you are interacting with the top level browser window. You can use it for preventing another site from iframing your website, among other things.

If you add some more detail to your question, I can supply other more relevant examples.

UPDATE: There are a few ways you can handle your situation.
You have the following structure:

• Main Window
  • Dialog 1
    • Dialog 2 Opened By Dialog 1

When Dialog 1 runs the code to open Dialog 2, after creating Dialog 2, have dialog 1 set a property on Dialog 2 that references the Dialog1 opener.

So if "childwindow" is you variable for the dialog 2 window object, and "window" is the variable for the Dialog 1 window object. After opening dialog 2, but before closing dialog 1 make an assignment similar to this:

childwindow.appMainWindow = window.opener

After making the assignment above, close dialog 1. Then from the code running inside dialog2, you should be able to use window.appMainWindow to reference the main window, window object.

Hope this helps.

MySQL does allow NULL values for datetime fields. I just tested it:

mysql> create table datetimetest (testcolumn datetime null default null);
Query OK, 0 rows affected (0.10 sec)

mysql> insert into datetimetest (testcolumn) values (null);
Query OK, 1 row affected (0.00 sec)

mysql> select * from datetimetest;
+------------+
| testcolumn |
+------------+
| NULL       | 
+------------+
1 row in set (0.00 sec)

I'm using this version:

mysql> select version();
+-----------+
| version() |
+-----------+
| 5.0.45    | 
+-----------+
1 row in set (0.03 sec)

EDIT #1: I see in your edit that the error message you are getting in PHP indicates that you are passing an empty string (i.e. ''), not null. An empty string is different than null and is not a valid datetime value which is why you are getting that error message. You must pass the special sql keyword null if that's what you mean. Also, don't put any quotes around the word null. See my insert statement above for an example of how to insert null.

EDIT #2: Are you using PDO? If so, when you bind your null param, make sure to use the [PDO::PARAM_NULL][1] type when binding a null. See the answer to this stackoverflow question on how to properly insert null using PDO.

Add a reference to the Outlook object model in the Visual Basic editor. Then you can use the code below to send an email using outlook.

Sub sendOutlookEmail()
Dim oApp As Outlook.Application
Dim oMail As MailItem
Set oApp = CreateObject("Outlook.application")

Set oMail = oApp.CreateItem(olMailItem)
oMail.Body = "Body of the email"
oMail.Subject = "Test Subject"
oMail.To = "[email protected]"
oMail.Send
Set oMail = Nothing
Set oApp = Nothing


End Sub

All those mistakes are related to badly connected Apache and JDK.

1. go to start>System>Advanced_system_settings>
2. System Properties will pop-up go to Environment Variables
3. in User variables you have to set variable: JAVA_HOME value: C:\Program_Files\Java\jdk1.8.0_161
4. in System variables you need to put in the path: jdk/bin path & jre/bin path and also you need to have JAVA_HOME C:\Program_Files\Java\jdk1.8.0_161

people usually forget to setup JAVA_HOME in System variables.

if you still have an error try to think step by step

1. Open Event viewer>Check Administrative Events and Windows Logs>System see the error. If that doesn't help
2. go to C:\Program Files\Apache Software Foundation\Tomcat 7.0\logs commons-daemon.XXXX-XX-XX.log and READ THE ERRORS AND WARNINGS... there should be nicely put down in words what's the problem.

Your URL doesn't work these days, but your code can be updated with this working solution:

var url = "http://saskatchewan.univ-ubs.fr:8080/SASStoredProcess/do?_username=DARTIES3-2012&_password=P@ssw0rd&_program=%2FUtilisateurs%2FDARTIES3-2012%2FMon+dossier%2Fanalyse_dc&annee=2012&ind=V&_action=execute";_x000D_
_x000D_
url = 'https://google.com'; // TEST URL_x000D_
_x000D_
$.get("https://images"+~~(Math.random()*33)+"-focus-opensocial.googleusercontent.com/gadgets/proxy?container=none&url=" + encodeURI(url), function(data) {_x000D_
    $('div.ajax-field').html(data);_x000D_
});

<div class="ajax-field"></div>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

The variable %0 in a batch script is set to the name of the executing batch file.

The ~dp special syntax between the % and the 0 basically says to expand the variable %0 to show the drive letter and path, which gives you the current directory containing the batch file!

Help = Link

Here is the sample of how to read file csv from local and write csv file to local.

var csvjson = require('csvjson'),
    fs = require('fs'),
    mongodb = require('mongodb'),
    MongoClient = mongodb.MongoClient,
    mongoDSN = 'mongodb://localhost:27017/test',
    collection;

function uploadcsvModule(){
    var data = fs.readFileSync( '/home/limitless/Downloads/orders_sample.csv', { encoding : 'utf8'});
    var importOptions = {
        delimiter : ',', // optional 
        quote     : '"' // optional 
    },ExportOptions = {
        delimiter   : ",",
        wrap        : false
    }
    var myobj = csvjson.toSchemaObject(data, importOptions)
    var exportArr = [], importArr = [];
    myobj.forEach(d=>{
        if(d.orderId==undefined || d.orderId=='') {
            exportArr.push(d)
        } else {
            importArr.push(d)
        }
    })
    var csv = csvjson.toCSV(exportArr, ExportOptions);
    MongoClient.connect(mongoDSN, function(error, db) {
        collection = db.collection("orders")
        collection.insertMany(importArr, function(err,result){
            fs.writeFile('/home/limitless/Downloads/orders_sample1.csv', csv, { encoding : 'utf8'});
            db.close();
        });            
    })
}

uploadcsvModule()

Goto Xcode -> Prefrences and import the profile

Assuming three columns in the table: ID, NAME, ROLE

BAD: This will insert or replace all columns with new values for ID=1:

INSERT OR REPLACE INTO Employee (id, name, role) 
  VALUES (1, 'John Foo', 'CEO');

BAD: This will insert or replace 2 of the columns... the NAME column will be set to NULL or the default value:

INSERT OR REPLACE INTO Employee (id, role) 
  VALUES (1, 'code monkey');

GOOD: Use SQLite On conflict clause UPSERT support in SQLite! UPSERT syntax was added to SQLite with version 3.24.0!

UPSERT is a special syntax addition to INSERT that causes the INSERT to behave as an UPDATE or a no-op if the INSERT would violate a uniqueness constraint. UPSERT is not standard SQL. UPSERT in SQLite follows the syntax established by PostgreSQL.

GOOD but tendous: This will update 2 of the columns. When ID=1 exists, the NAME will be unaffected. When ID=1 does not exist, the name will be the default (NULL).

INSERT OR REPLACE INTO Employee (id, role, name) 
  VALUES (  1, 
            'code monkey',
            (SELECT name FROM Employee WHERE id = 1)
          );

This will update 2 of the columns. When ID=1 exists, the ROLE will be unaffected. When ID=1 does not exist, the role will be set to 'Benchwarmer' instead of the default value.

INSERT OR REPLACE INTO Employee (id, name, role) 
  VALUES (  1, 
            'Susan Bar',
            COALESCE((SELECT role FROM Employee WHERE id = 1), 'Benchwarmer')
          );

Use int(your non integer number) will nail it.

print int(2.3) # "2"
print int(math.sqrt(5)) # "2"

The following code works fine:

@using (Html.BeginForm("Upload", "Upload", FormMethod.Post, 
                                      new { enctype = "multipart/form-data" }))
{
    @Html.ValidationSummary(true)
    <fieldset>
        Select a file <input type="file" name="file" />
        <input type="submit" value="Upload" />
    </fieldset>
}

and generates as expected:

<form action="/Upload/Upload" enctype="multipart/form-data" method="post">    
    <fieldset>
        Select a file <input type="file" name="file" />
        <input type="submit" value="Upload" />
    </fieldset>
</form>

On the other hand if you are writing this code inside the context of other server side construct such as an if or foreach you should remove the @ before the using. For example:

@if (SomeCondition)
{
    using (Html.BeginForm("Upload", "Upload", FormMethod.Post, 
                                      new { enctype = "multipart/form-data" }))
    {
        @Html.ValidationSummary(true)
        <fieldset>
            Select a file <input type="file" name="file" />
            <input type="submit" value="Upload" />
        </fieldset>
    }
}

As far as your server side code is concerned, here's how to proceed:

[HttpPost]
public ActionResult Upload(HttpPostedFileBase file) 
{
    if (file != null && file.ContentLength > 0) 
    {
        var fileName = Path.GetFileName(file.FileName);
        var path = Path.Combine(Server.MapPath("~/content/pics"), fileName);
        file.SaveAs(path);
    }
    return RedirectToAction("Upload");
}

Here you have few solutions ;)

http://www.bennadel.com/blog/122-Getting-Only-the-Date-Part-of-a-Date-Time-Stamp-in-SQL-Server.htm

Managed to get answer after do some google..

echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" | tee -a /etc/apt/sources.list
echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" | tee -a /etc/apt/sources.list
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886
apt-get update
# Java 7
apt-get install oracle-java7-installer
# For Java 8 command is:
apt-get install oracle-java8-installer

Here is simple steps add this gradle:

dependencies {
  compile "com.google.firebase:firebase-messaging:9.0.0"
}

No extra permission are needed in manifest like GCM. No receiver is needed to manifest like GCM. With FCM, com.google.android.gms.gcm.GcmReceiver is added automatically.

Migrate your listener service

A service extending InstanceIDListenerService is now required only if you want to access the FCM token.

This is needed if you want to

• Manage device tokens to send a messages to single device directly, or Send messages to device group, or
• Send messages to device group, or
• Subscribe devices to topics with the server subscription management API.

Add Service in manifest

<service
    android:name=".MyInstanceIDListenerService">
    <intent-filter>
        <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
    </intent-filter>
</service>

<service
    android:name=".MyFirebaseInstanceIDService">
    <intent-filter>
        <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
    </intent-filter>
</service>

Change MyInstanceIDListenerService to extend FirebaseInstanceIdService, and update code to listen for token updates and get the token whenever a new token is generated.

public class MyInstanceIDListenerService extends FirebaseInstanceIdService {

  ...

  /**
   * Called if InstanceID token is updated. This may occur if the security of
   * the previous token had been compromised. Note that this is also called
   * when the InstanceID token is initially generated, so this is where
   * you retrieve the token.
   */
  // [START refresh_token]
  @Override
  public void onTokenRefresh() {
      // Get updated InstanceID token.
      String refreshedToken = FirebaseInstanceId.getInstance().getToken();
      Log.d(TAG, "Refreshed token: " + refreshedToken);
      // TODO: Implement this method to send any registration to your app's servers.
      sendRegistrationToServer(refreshedToken);
  }

}

For more information visit

1. How to import former GCM Projects into Firebase
2. How to force a token refresh
3. How to access the token
4. How to set up firebase

If using cmake for me none of the hacks of editing the files and linking worked so I compiled using the flags which specify the gcc/g++ version.
cmake -DCMAKE_C_COMPILER=gcc-6 -DCMAKE_CXX_COMPILER=g++-6 ..

Worked like charm.

Another possible option would be to use Datejs

Then you can do

Date.getDaysInMonth(2009, 9)     

Although adding a library just for this function is overkill, it's always nice to know all the options you have available to you :)

The short answer is that there are 2 answers. There is one standard for what you should do. ie behaviour that is wise and will keep you out of trouble. There is another (much broader) standard for the behaviour you should accept without making trouble. This duality works for sending and accepting email but has broad application in life.

For a good guide to the addresses you create; see: http://www.remote.org/jochen/mail/info/chars.html

To filter valid emails, just pass on anything comprehensible enough to see a next step. Or start reading a bunch of RFCs, caution, here be dragons.

Here is a ZipFileIterator (like a java Iterator, but for zip files):

package ch.epfl.bbp.io;

import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Iterator;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class ZipFileIterator implements Iterator<File> {

    private byte[] buffer = new byte[1024];

    private FileInputStream is;
    private ZipInputStream zis;
    private ZipEntry ze;

    public ZipFileIterator(File file) throws FileNotFoundException {
    is = new FileInputStream(file);
    zis = new ZipInputStream(new BufferedInputStream(is));
    }

    @Override
    public boolean hasNext() {
    try {
        return (ze = zis.getNextEntry()) != null;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return false;
    }

    @Override
    public File next() {
    try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        int count;

        String filename = ze.getName();
        File tmpFile = File.createTempFile(filename, "tmp");
        tmpFile.deleteOnExit();// TODO make it configurable
        FileOutputStream fout = new FileOutputStream(tmpFile);

        while ((count = zis.read(buffer)) != -1) {
        baos.write(buffer, 0, count);
        byte[] bytes = baos.toByteArray();
        fout.write(bytes);
        baos.reset();
        }
        fout.close();
        zis.closeEntry();

        return tmpFile;

    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    }

    @Override
    public void remove() {
    throw new RuntimeException("not implemented");
    }

    public void close() {
    try {
        zis.close();
        is.close();
    } catch (IOException e) {// nope
    }
    }
}

With the Entity Framework most of the time SaveChanges() is sufficient. This creates a transaction, or enlists in any ambient transaction, and does all the necessary work in that transaction.

Sometimes though the SaveChanges(false) + AcceptAllChanges() pairing is useful.

The most useful place for this is in situations where you want to do a distributed transaction across two different Contexts.

I.e. something like this (bad):

using (TransactionScope scope = new TransactionScope())
{
    //Do something with context1
    //Do something with context2

    //Save and discard changes
    context1.SaveChanges();

    //Save and discard changes
    context2.SaveChanges();

    //if we get here things are looking good.
    scope.Complete();
}

If context1.SaveChanges() succeeds but context2.SaveChanges() fails the whole distributed transaction is aborted. But unfortunately the Entity Framework has already discarded the changes on context1, so you can't replay or effectively log the failure.

But if you change your code to look like this:

using (TransactionScope scope = new TransactionScope())
{
    //Do something with context1
    //Do something with context2

    //Save Changes but don't discard yet
    context1.SaveChanges(false);

    //Save Changes but don't discard yet
    context2.SaveChanges(false);

    //if we get here things are looking good.
    scope.Complete();
    context1.AcceptAllChanges();
    context2.AcceptAllChanges();

}

While the call to SaveChanges(false) sends the necessary commands to the database, the context itself is not changed, so you can do it again if necessary, or you can interrogate the ObjectStateManager if you want.

This means if the transaction actually throws an exception you can compensate, by either re-trying or logging state of each contexts ObjectStateManager somewhere.

See my blog post for more.

Calling sort on a hash converts it into nested arrays and then sorts them by key, so all you need is this:

puts h.sort.map {|k,v| ["#{k}----"] + v}

And if you don't actually need the "----" part, it can be just:

puts h.sort

This is tested in android 7.0 up to android 10.0 and it works

Use these codes to check if string contains space/spaces may it be in the first position, middle or last:

 name = firstname.getText().toString(); //name is the variable that holds the string value

 Pattern space = Pattern.compile("\\s+");
 Matcher matcherSpace = space.matcher(name);
 boolean containsSpace = matcherSpace.find();

 if(constainsSpace == true){
  //string contains space
 }
 else{
  //string does not contain any space
 }

Look in the Python re documentation for lookaheads (?=...) and lookbehinds (?<=...) -- I'm pretty sure they're what you want. They match strings, but do not "consume" the bits of the strings they match.

A New Laravel Blade Error Directive comes to Laravel 5.8.13

// Before
@if ($errors->has('email'))
    <span>{{ $errors->first('email') }}</span>
@endif

// After:
@error('email')
    <span>{{ $message }}</span>
@enderror

Toggle both modals

$('#modalOne').modal('toggle');
$('#modalTwo').modal('toggle');

I doubt you want to do it programmatically unless you just want to do it once and store it for future use. It's a costly thing to do. There's no sizeof() operator in Java, and even if there was, it would only count the cost of the references to other objects and the size of the primitives.

One way you could do it is to serialize the thing to a File and look at the size of the file, like this:

Serializable myObject;
ObjectOutputStream oos = new ObjectOutputStream (new FileOutputStream ("obj.ser"));
oos.write (myObject);
oos.close ();

Of course, this assumes that each object is distinct and doesn't contain non-transient references to anything else.

Another strategy would be to take each object and examine its members by reflection and add up the sizes (boolean & byte = 1 byte, short & char = 2 bytes, etc.), working your way down the membership hierarchy. But that's tedious and expensive and ends up doing the same thing the serialization strategy would do.

No. Class variables(Also applicable to instance variables) don't exhibit overriding feature in Java as class variables are invoked on the basis of the type of calling object. Added one more class(Human) in the hierarchy to make it more clear. So now we have

Son extends Dad extends Human

In the below code, we try to iterate over an array of Human, Dad and Son objects, but it prints Human Class’s values in all cases as the type of calling object was Human.

    class Human
{
    static String me = "human";

    public void printMe()
    {
        System.out.println(me);
    }
}
class Dad extends Human
{
    static String me = "dad";

}

class Son extends Dad
{
    static String me = "son";
}


public class ClassVariables {
    public static void main(String[] abc)   {
        Human[] humans = new Human[3];
        humans[0] = new Human();
        humans[1] = new Dad();
        humans[2] = new Son();
        for(Human human: humans)   {
            System.out.println(human.me);        // prints human for all objects
        }
    }
}

Will print

• human
• human
• human

So no overriding of Class variables.

If we want to access the class variable of actual object from a reference variable of its parent class, we need to explicitly tell this to compiler by casting parent reference (Human object) to its type.

    System.out.println(((Dad)humans[1]).me);        // prints dad

    System.out.println(((Son)humans[2]).me);        // prints son

Will print

• dad
• son

On how part of this question:- As already suggested override the printMe() method in Son class, then on calling

Son().printMe();

Dad's Class variable "me" will be hidden because the nearest declaration(from Son class printme() method) of the "me"(in Son class) will get the precedence.

Your query is very close. You should be able to use the following which includes the subject in the final select list:

select u.name, u.subject, u.marks
from student s
unpivot
(
  marks
  for subject in (Maths, Science, English)
) u;

See SQL Fiddle with demo

Using collections.defaultdict is a big time-saver when you're building dicts and don't know beforehand which keys you're going to have.

Here it's used twice: for the resulting dict, and for each of the values in the dict.

import collections

def aggregate_names(errors):
    result = collections.defaultdict(lambda: collections.defaultdict(list))
    for real_name, false_name, location in errors:
        result[real_name][false_name].append(location)
    return result

Combining this with your code:

dictionary = aggregate_names(previousFunction(string))

Or to test:

EXAMPLES = [
    ('Fred', 'Frad', 123),
    ('Jim', 'Jam', 100),
    ('Fred', 'Frod', 200),
    ('Fred', 'Frad', 300)]
print aggregate_names(EXAMPLES)

If you want to check the validity and consistency of all the existing views you can use the following query

declare @viewName sysname
declare @cmd sysname
DECLARE check_cursor CURSOR FOR 
SELECT cast('['+SCHEMA_NAME(schema_id)+'].['+name+']' as sysname) AS viewname
FROM sys.views

OPEN check_cursor
FETCH NEXT FROM check_cursor 
INTO @viewName

WHILE @@FETCH_STATUS = 0
BEGIN

set @cmd='select * from '+@viewName
begin try
exec (@cmd)
end try
begin catch
print 'Error: The view '+@viewName+' is corrupted .'
end catch
FETCH NEXT FROM check_cursor 
INTO @viewName
END 
CLOSE check_cursor;
DEALLOCATE check_cursor;

Funny the answer is hidden in among the answers.

str.replace("•", "something") 

would work if you use the right semantics.

str.replace(u"\u2022","something") 

works wonders ;) , thnx to RParadox for the hint.

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

      protected void Button1_Click(object sender, EventArgs e)
        {

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

You should use RegExp (they are awesome) an easy solution is:

if( /^bird/.test(animals[i]) ){
    // a bird :D
}

Remember to put not only the tag but also the repository in which that tag is, this way:

docker images
REPOSITORY                                TAG                       IMAGE ID            CREATED             SIZE
elixir                                    1.7-centos7_3             e15e6bf57262        20 hours ago        925MB

You should reference it this way:

elixir:1.7-centos7_3

Quick and dirty way:

System.out.println("I'm in line #" + 
    new Exception().getStackTrace()[0].getLineNumber());

With some more details:

StackTraceElement l = new Exception().getStackTrace()[0];
System.out.println(
    l.getClassName()+"/"+l.getMethodName()+":"+l.getLineNumber());

That will output something like this:

com.example.mytest.MyClass/myMethod:103

I have been in the same situation, my complete solution has been posted here

Basically I load a template in the directive in this way

var tpl = '' + 
    <div ng-if="maxLength" 
        ng-include="\'length.tpl.html\'">
    </div>' +
    '<div ng-if="required" 
        ng-include="\'required.tpl.html\'">
    </div>';

then according to the value of maxLength and required I can dynamically load one of the 2 templates, only one of them at a time is shown if necessary.

I heope it helps.

import hashlib,re
opened = open('/home/parrot/pass.txt','r')
opened = open.readlines()
for i in opened:
    strip1 = i.strip('\n')
    hash_object = hashlib.md5(strip1.encode())
    hash2 = hash_object.hexdigest()
    print hash2

To answer the second part of your question, to convert to binary you can use a format string and the ord function:

>>> byte = 'a'
>>> '{0:08b}'.format(ord(byte))
'01100001'

Note that the format pads with the right number of leading zeros, which seems to be your requirement. This method needs Python 2.6 or later.

Ignore the chrome warning. There is no standard MIME type for OTF fonts.

font/opentype may silence the warning, but that doesn't make it the "right" thing to do.

Arguably, you're better off making one up, e.g. with "application/x-opentype" because at least "application" is a registered content type, while "font" is not.

Update: OTF remains a problem, but WOFF grew an IANA MIME type of application/font-woff in January 2013.

Update 2: OTF has grown a MIME type: application/font-sfnt In March 2013. This type also applies to .ttf

When you want to count the frequency of categorical data in a column in pandas dataFrame use: df['Column_Name'].value_counts()

-Source.

jQuery.inArray() returns index of the item in the array, or -1 if item was not found. Read more here: jQuery.inArray()

http://locutus.io/php/strings/addslashes/

function addslashes( str ) {
    return (str + '').replace(/[\\"']/g, '\\$&').replace(/\u0000/g, '\\0');
}

cd to sessions directory and then:

1) View sessions older than 40 min: find . -amin +40 -exec stat -c "%n %y" {} \;

2) Remove sessions older than 40 min: find . -amin +40 -exec rm {} \;

In windows, I copied, what I think is a snapshot:

.~SomeAmazingNotebook.ipynb

renamed it:

SomeAmazingNotebook.ipynb

and could open it.

I had the same issue as above and I am using PostgreSQL 10.5. I tried everything as above but nothing seems to be working.

Then I closed the pgadmin and opened a session for the PSQL terminal. Logged into the PSQL and connected to the database and schema respectively :

\c <DATABASE_NAME>;
set search_path to <SCHEMA_NAME>;

Then, restarted the pgadmin console and then I was able to work without issue in the query-tool of the pagadmin.

Okay, seems like a bit of a hack. I have got it to work using a substring, so that only the part of the string with the date (not the time) gets passed into the DATE function...

DATE(substr(SETTLEMENTDATE.VALUE,7,4)||'-'|| substr(SETTLEMENTDATE.VALUE,4,2)||'-'|| substr(SETTLEMENTDATE.VALUE,1,2))

I will still accept any answers that are better than this one!

$myvals = get_post_meta( get_the_ID());
foreach($myvals as $key=>$val){
  foreach($val as $vals){
    if ($key=='Youtube'){
       echo $vals 
    }
   }
 }

Key = Youtube videos all meta keys for youtube videos and value

A very simple solution is to add the database name with your table name like if your DB name is DBMS and table is info then it will be DBMS.info for any query.

If your query is

select * from STUDENTREC where ROLL_NO=1;

it might show an error but

select * from DBMS.STUDENTREC where ROLL_NO=1; 

it doesn't because now actually your table is found.

length and dbms_lob.getlength return the number of characters when applied to a CLOB (Character LOB). When applied to a BLOB (Binary LOB), dbms_lob.getlength will return the number of bytes, which may differ from the number of characters in a multi-byte character set.

As the documentation doesn't specify what happens when you apply length on a BLOB, I would advise against using it in that case. If you want the number of bytes in a BLOB, use dbms_lob.getlength.

Have you considered applying ON DELETE CASCADE where relevant?

$this->db->where('`id` IN (SELECT `someId` FROM `anotherTable` WHERE `someCondition`='condition')', NULL, FALSE);

Source : http://www.247techblog.com/use-write-sub-queries-codeigniter-active-records-condition-full-explaination/

Java unfortunatly does not allow what you want to do. See the official workaround :

You cannot create an instance of a type parameter. For example, the following code causes a compile-time error:

public static <E> void append(List<E> list) {
    E elem = new E();  // compile-time error
    list.add(elem);
}

As a workaround, you can create an object of a type parameter through reflection:

public static <E> void append(List<E> list, Class<E> cls) throws Exception {
    E elem = cls.newInstance();   // OK
    list.add(elem);
}

You can invoke the append method as follows:

List<String> ls = new ArrayList<>();
append(ls, String.class);

UPDATE: using Pandas 0.22.0

Newer Pandas versions have new methods 'DataFrame.isna()' and 'DataFrame.notna()'

In [71]: df
Out[71]:
     a    b  c
0  NaN  7.0  0
1  0.0  NaN  4
2  2.0  NaN  4
3  1.0  7.0  0
4  1.0  3.0  9
5  7.0  4.0  9
6  2.0  6.0  9
7  9.0  6.0  4
8  3.0  0.0  9
9  9.0  0.0  1

In [72]: df.isna().any()
Out[72]:
a     True
b     True
c    False
dtype: bool

as list of columns:

In [74]: df.columns[df.isna().any()].tolist()
Out[74]: ['a', 'b']

to select those columns (containing at least one NaN value):

In [73]: df.loc[:, df.isna().any()]
Out[73]:
     a    b
0  NaN  7.0
1  0.0  NaN
2  2.0  NaN
3  1.0  7.0
4  1.0  3.0
5  7.0  4.0
6  2.0  6.0
7  9.0  6.0
8  3.0  0.0
9  9.0  0.0

OLD answer:

Try to use isnull():

In [97]: df
Out[97]:
     a    b  c
0  NaN  7.0  0
1  0.0  NaN  4
2  2.0  NaN  4
3  1.0  7.0  0
4  1.0  3.0  9
5  7.0  4.0  9
6  2.0  6.0  9
7  9.0  6.0  4
8  3.0  0.0  9
9  9.0  0.0  1

In [98]: pd.isnull(df).sum() > 0
Out[98]:
a     True
b     True
c    False
dtype: bool

or as @root proposed clearer version:

In [5]: df.isnull().any()
Out[5]:
a     True
b     True
c    False
dtype: bool

In [7]: df.columns[df.isnull().any()].tolist()
Out[7]: ['a', 'b']

to select a subset - all columns containing at least one NaN value:

In [31]: df.loc[:, df.isnull().any()]
Out[31]:
     a    b
0  NaN  7.0
1  0.0  NaN
2  2.0  NaN
3  1.0  7.0
4  1.0  3.0
5  7.0  4.0
6  2.0  6.0
7  9.0  6.0
8  3.0  0.0
9  9.0  0.0

Kind of a confusing group of answers, in part because the title of the question is actually much larger than the specific question being asked. After reading through, I'm not sure any answer is a few edits away from assimilating all the good stuff here, so I figured I'd try to sum.

Here's an extension method that I think avoids the pitfalls mentioned here and provides the most broadly applicable solution.

public static string ReplaceCaseInsensitiveFind(this string str, string findMe,
    string newValue)
{
    return Regex.Replace(str,
        Regex.Escape(findMe),
        Regex.Replace(newValue, "\\$[0-9]+", @"$$$0"),
        RegexOptions.IgnoreCase);
}

So...

• This is an extension method @MarkRobinson
• This doesn't try to skip Regex @Helge (you really have to do byte-by-byte if you want to string sniff like this outside of Regex)
• Passes @MichaelLiu 's excellent test case, "œ".ReplaceCaseInsensitiveFind("oe", ""), though he may have had a slightly different behavior in mind.

Unfortunately, @HA 's comment that you have to Escape all three isn't correct. The initial value and newValue doesn't need to be.

Note: You do, however, have to escape $s in the new value that you're inserting if they're part of what would appear to be a "captured value" marker. Thus the three dollar signs in the Regex.Replace inside the Regex.Replace [sic]. Without that, something like this breaks...

"This is HIS fork, hIs spoon, hissssssss knife.".ReplaceCaseInsensitiveFind("his", @"he$0r")

Here's the error:

An unhandled exception of type 'System.ArgumentException' occurred in System.dll

Additional information: parsing "The\hisr\ is\ he\HISr\ fork,\ he\hIsr\ spoon,\ he\hisrsssssss\ knife\." - Unrecognized escape sequence \h.

Tell you what, I know folks that are comfortable with Regex feel like their use avoids errors, but I'm often still partial to byte sniffing strings (but only after having read Spolsky on encodings) to be absolutely sure you're getting what you intended for important use cases. Reminds me of Crockford on "insecure regular expressions" a little. Too often we write regexps that allow what we want (if we're lucky), but unintentionally allow more in (eg, Is $10 really a valid "capture value" string in my newValue regexp, above?) because we weren't thoughtful enough. Both methods have value, and both encourage different types of unintentional errors. It's often easy to underestimate complexity.

That weird $ escaping (and that Regex.Escape didn't escape captured value patterns like $0 as I would have expected in replacement values) drove me mad for a while. Programming Is Hard (c) 1842

1. for error: unescaped apostrophe in string

what I found is that AAPT2 tool points to wrong row in xml, sometimes. So you should correct whole strings.xml file

In Android Studio, in problem file use :

Edit->find->replace

Then write in first field \' (or \&,>,\<,\")
in second put '(or &,>,<,")
then replace each if needed.(or "reptlace all" in case with ')
Then in first field again put '(or &,>,<,")
and in second write \'
then replace each if needed.(or "replace all" in case with ')

2. for other problematic symbols
I use to comment each next half part +rebuild until i won't find the wrong sign.

E.g. an escaped word "\update" unexpectedly drops such error :)

It's important to store the data in a way that it can be retrieved in the languages used. C-language stores in row-major order (all of first row comes first, then all of second row,...) with every index running from 0 to it's dimension-1. So the order of array x[2][3] is x[0][0], x[0][1], x[0][2], x[1][0], x[1][1], x[1][2]. So in C language, x[i][j] is stored the same place as a 1-dimensional array entry x1dim[ i*3 +j]. If the data is stored that way, it is easy to retrieve in C language.

Fortran and MATLAB are different. They store in column-major order (all of first column comes first, then all of second row,...) and every index runs from 1 to it's dimension. So the index order is the reverse of C and all the indices are 1 greater. If you store the data in the C language order, FORTRAN can find X_C_language[i][j] using X_FORTRAN(j+1, i+1). For instance, X_C_language[1][2] is equal to X_FORTRAN(3,2). In 1-dimensional arrays, that data value is at X1dim_C_language[2*Cdim2 + 3], which is the same position as X1dim_FORTRAN(2*Fdim1 + 3 + 1). Remember that Cdim2 = Fdim1 because the order of indices is reversed.

MATLAB is the same as FORTRAN. Ada is the same as C except the indices normally start at 1. Any language will have the indices in one of those C or FORTRAN orders and the indices will start at 0 or 1 and can be adjusted accordingly to get at the stored data.

Sorry if this explanation is confusing, but I think it is accurate and important for a programmer to know.

If you want to remove all new line characters and replace them with some character (say comma) then you can use the following.

(Get-Content test.txt) -join ","

This works because Get-Content returns array of lines. You can see it as tokenize function available in many languages.

I looked around for a solution to this for a while. It appears that the JDK doesn't have the Mozilla plugins (which is what Chrome uses) in it's installation. It is only in the JRE installation. There are a couple of DLLs that make up the plugin and they all start with np*

Adding placeholder attributes from code-behind:

txtFilterTerm.Attributes.Add("placeholder", "Filter" + Filter.Name);

Or

txtFilterTerm.Attributes["placeholder"] = "Filter" + Filter.Name;

Adding placeholder attributes from aspx Page

<asp:TextBox type="text" runat="server" id="txtFilterTerm" placeholder="Filter" />

Or

<input type="text" id="txtFilterTerm" placeholder="Filter"/>

I was able to clear dozens of these errors by using Git clean. Here's the command: git clean -dffx && git reset --hard

There are tools that let you monitor the VM's memory usage. The VM can expose memory statistics using JMX. You can also print GC statistics to see how the memory is performing over time.

Invoking System.gc() can harm the GC's performance because objects will be prematurely moved from the new to old generations, and weak references will be cleared prematurely. This can result in decreased memory efficiency, longer GC times, and decreased cache hits (for caches that use weak refs). I agree with your consultant: System.gc() is bad. I'd go as far as to disable it using the command line switch.

Here is an example for Python 3 that you can edit for Python 2 ;)

from tkinter import *
from PIL import ImageTk, Image
from tkinter import filedialog
import os

root = Tk()
root.geometry("550x300+300+150")
root.resizable(width=True, height=True)

def openfn():
    filename = filedialog.askopenfilename(title='open')
    return filename
def open_img():
    x = openfn()
    img = Image.open(x)
    img = img.resize((250, 250), Image.ANTIALIAS)
    img = ImageTk.PhotoImage(img)
    panel = Label(root, image=img)
    panel.image = img
    panel.pack()

btn = Button(root, text='open image', command=open_img).pack()

root.mainloop()

For Swift 5

Remove Cell

    let indexPath = [NSIndexPath(row: yourArray-1, section: 0)]
    yourArray.remove(at: buttonTag)
    self.tableView.beginUpdates()

    self.tableView.deleteRows(at: indexPath as [IndexPath] , with: .fade)
    self.tableView.endUpdates()
    self.tableView.reloadData()// Not mendatory, But In my case its requires

Add new cell

    yourArray.append(4)

    tableView.beginUpdates()
    tableView.insertRows(at: [
        (NSIndexPath(row: yourArray.count-1, section: 0) as IndexPath)], with: .automatic)
    tableView.endUpdates()

Probably is APC related.

For the people having this problem, please specify you .ini settings. Specifically your apc.mmap_file_mask setting.

For file-backed mmap, it should be set to something like:

apc.mmap_file_mask=/tmp/apc.XXXXXX

To mmap directly from /dev/zero, use:

apc.mmap_file_mask=/dev/zero

For POSIX-compliant shared-memory-backed mmap, use:

apc.mmap_file_mask=/apc.shm.XXXXXX

You might find this article of interest which is available at codeplex.com.

• Improving Entity Framework Query Performance Using Graph-Based Querying.

The article presents a new way of expressing queries that span multiple tables in the form of declarative graph shapes.

Moreover, the article contains a thorough performance comparison of this new approach with EF queries. This analysis shows that GBQ quickly outperforms EF queries.

Have you tried adding lines below to your web.xml?

<context-param>
   <param-name>com.sun.faces.enableRestoreView11Compatibility</param-name>
   <param-value>true</param-value>
</context-param>

I found this to be very effective when I encountered this issue.

On opening the developer tools, with the developer tools window in focus, press F1. This will open a settings page. Check the "Auto-open DevTools for popups".

This worked for me.

<html>
 <body>
  <input type="checkbox" id="number1" onclick="number1();">Number 1</br>
  <p id="h1"></p>
   <script type="text/javascript">
    function number1() {
    if(document.getElementById('number1').checked) {

      document.getElementById("h1").innerHTML = "<h1>Hello member</h1>";
         }
    }
   </script>
 </body>
</html>

Similar issue, using this "borrowed" and slightly modified code:

                Intent intent = new Intent(Intent.ACTION_VIEW);
                File newApk = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + "myapp.apk");
                intent.setDataAndType(Uri.fromFile(newApk), "application/vnd.android.package-archive");
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivity(intent);
                result = true;

Needed to change the file creation to this (comma instead of plus in the File constructor, was missing '/' after the download directory):

                    File newApk = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS), "myapp.apk");

You can use require with the path to the global module directory as an argument.

require('/path/to/global/node_modules/the_module');

On my mac, I use this:

require('/usr/local/lib/node_modules/the_module');

How to find where your global modules are? --> Where does npm install packages?

It's true that the above examples of using const and iota are the most idiomatic ways of representing primitive enums in Go. But what if you're looking for a way to create a more fully-featured enum similar to the type you'd see in another language like Java or Python?

A very simple way to create an object that starts to look and feel like a string enum in Python would be:

package main

import (
    "fmt"
)

var Colors = newColorRegistry()

func newColorRegistry() *colorRegistry {
    return &colorRegistry{
        Red:   "red",
        Green: "green",
        Blue:  "blue",
    }
}

type colorRegistry struct {
    Red   string
    Green string
    Blue  string
}

func main() {
    fmt.Println(Colors.Red)
}

Suppose you also wanted some utility methods, like Colors.List(), and Colors.Parse("red"). And your colors were more complex and needed to be a struct. Then you might do something a bit like this:

package main

import (
    "errors"
    "fmt"
)

var Colors = newColorRegistry()

type Color struct {
    StringRepresentation string
    Hex                  string
}

func (c *Color) String() string {
    return c.StringRepresentation
}

func newColorRegistry() *colorRegistry {

    red := &Color{"red", "F00"}
    green := &Color{"green", "0F0"}
    blue := &Color{"blue", "00F"}

    return &colorRegistry{
        Red:    red,
        Green:  green,
        Blue:   blue,
        colors: []*Color{red, green, blue},
    }
}

type colorRegistry struct {
    Red   *Color
    Green *Color
    Blue  *Color

    colors []*Color
}

func (c *colorRegistry) List() []*Color {
    return c.colors
}

func (c *colorRegistry) Parse(s string) (*Color, error) {
    for _, color := range c.List() {
        if color.String() == s {
            return color, nil
        }
    }
    return nil, errors.New("couldn't find it")
}

func main() {
    fmt.Printf("%s\n", Colors.List())
}

At that point, sure it works, but you might not like how you have to repetitively define colors. If at this point you'd like to eliminate that, you could use tags on your struct and do some fancy reflecting to set it up, but hopefully this is enough to cover most people.

example you wanted to delete the subject record with its subject_id

@RequestMapping(value="subject_setup/delete/{subjectid}",method = RequestMethod.GET)
public ModelAndView delete(@PathVariable int subjectid) {
    subjectsDao.delete(subjectid);
    return new ModelAndView("redirect:/subject_setup");
}

and the parameter will be used for input on your query

public int delete(int subjectid) {
    String sql = "update tbl_subject set isdeleted= '1' where id = "+subjectid+"";
    return template.update(sql);
}

I was able to get better performance with a text based protocol as compared to protobuff on python. However, no type checking or other fancy utf8 conversion, etc... which protobuff offers.

So, if serialization/deserialization is all you need, then you can probably use something else.

http://dhruvbird.blogspot.com/2010/05/protocol-buffers-vs-http.html

I think the easiest way to think about this variable like input parameter in lambda expression in C#. I.e. $_ is similar to x in x => Console.WriteLine(x) anonymous function in C#. Consider following examples:

PowerShell:

1,2,3 | ForEach-Object {Write-Host $_}

Prints:

1
2
3

or

1,2,3 | Where-Object {$_ -gt 1}

Prints:

2
3

And compare this with C# syntax using LINQ:

var list = new List<int> { 1, 2, 3 };
list.ForEach( _ => Console.WriteLine( _ ));

Prints:

1
2
3

or

list.Where( _ => _ > 1)
    .ToList()
    .ForEach(s => Console.WriteLine(s));

Prints:

2
3

setFixedLengthStreamingMode(int) with contentLength parameters could set the fixed length of a HTTP request body.

This is kind of hacky, but it works.

I used JavascriptExecutor and added a div to the HTML, and changed the text in the div to $('#prettyTime').val() I then used Selenium to retrieve the div and grab its value. After testing the correctness of the value, I removed the div that was just created.

The toString method of array types in Java isn't particularly meaningful, other than telling you what that is an array of.

You can use java.util.Arrays.toString for that.

Or if your lines only contain numbers, and you want a line as 1,2,3,4... instead of [1, 2, 3, ...], you can use:

java.util.Arrays.toString(someArray).replaceAll("\\]| |\\[","")

class Student(object):
    name = ""
    age = 0
    major = ""

    # The class "constructor" - It's actually an initializer 
    def __init__(self, name, age, major):
        self.name = name
        self.age = age
        self.major = major

def make_student(name, age, major):
    student = Student(name, age, major)
    return student

Note that even though one of the principles in Python's philosophy is "there should be one—and preferably only one—obvious way to do it", there are still multiple ways to do this. You can also use the two following snippets of code to take advantage of Python's dynamic capabilities:

class Student(object):
    name = ""
    age = 0
    major = ""

def make_student(name, age, major):
    student = Student()
    student.name = name
    student.age = age
    student.major = major
    # Note: I didn't need to create a variable in the class definition before doing this.
    student.gpa = float(4.0)
    return student

I prefer the former, but there are instances where the latter can be useful – one being when working with document databases like MongoDB.

for Mac OS just go to applications and just run these Scripts Install Certificates.command and Update Shell Profile.command, now it will work.

I just change the type of input to the text and back to the file :D

The following shell script will iterate through all users and print only those user names which belong to a given group:

#!/usr/bin/env bash
getent passwd | while IFS=: read name trash
do
    groups $name 2>/dev/null | cut -f2 -d: | grep -i -q -w "$1" && echo $name
done
true

Usage example:

./script 'DOMAIN+Group Name'

Note: This solution will check NIS and LDAP for users and groups (not only passwd and group files). It will also take into account users not added to a group but having group set as primary group.

Edit: Added fix for rare scenario where user does not belong to group with the same name.

Edit: written in the form of a shell script; added true to exit with 0 status as suggested by @Max Chernyak aka hakunin; discarded stderr in order to skip those occasional groups: cannot find name for group ID xxxxxx.

1.) A local temporary table exists only for the duration of a connection or, if defined inside a compound statement, for the duration of the compound statement.

Local temp tables are only available to the SQL Server session or connection (means single user) that created the tables. These are automatically deleted when the session that created the tables has been closed. Local temporary table name is stared with single hash ("#") sign.

CREATE TABLE #LocalTemp
(
 UserID int,
 Name varchar(50), 
 Address varchar(150)
)
GO
insert into #LocalTemp values ( 1, 'Name','Address');
GO
Select * from #LocalTemp

The scope of Local temp table exist to the current session of current user means to the current query window. If you will close the current query window or open a new query window and will try to find above created temp table, it will give you the error.

2.) A global temporary table remains in the database permanently, but the rows exist only within a given connection. When connection is closed, the data in the global temporary table disappears. However, the table definition remains with the database for access when database is opened next time.

Global temp tables are available to all SQL Server sessions or connections (means all the user). These can be created by any SQL Server connection user and these are automatically deleted when all the SQL Server connections have been closed. Global temporary table name is stared with double hash ("##") sign.

CREATE TABLE ##GlobalTemp
(
 UserID int,
 Name varchar(50), 
 Address varchar(150)
)
GO
insert into ##GlobalTemp values ( 1, 'Name','Address');
GO
Select * from ##GlobalTemp

Global temporary tables are visible to all SQL Server connections while Local temporary tables are visible to only current SQL Server connection.

If you know there are three li's in the list you're looking at, for example, you could do this:

li + li + li { /* Selects third to last li */
}

In IE6 you can use expressions:

li {
    color: expression(this.previousSibling ? 'red' : 'green'); /* 'green' if last child */
}

I would recommend using a specialized class or Javascript (not IE6 expressions), though, until the :last-child selector gets better support.

If you know the structure of the json that you're receiving then I'd suggest having a class structure that mirrors what you're receiving in json.

Then you can call its something like this...

AddressMap addressMap = JsonConvert.DeserializeObject<AddressMap>(json);

(Where json is a string containing the json in question)

If you don't know the format of the json you've receiving then it gets a bit more complicated and you'd probably need to manually parse it.

check out http://www.hanselman.com/blog/NuGetPackageOfTheWeek4DeserializingJSONWithJsonNET.aspx for more info

If you're facing this error but your issue is different and you're tired of searching for a long time then this might help you.

If you have changed your database and updated .env file and still facing same issue then you should check C:\xampp\htdocs{your-project-name}\bootstrap\cache\config.php file and replace or remove the old database name and other changed items.

https://docs.docker.com/compose/compose-file/#extra_hosts

extra_hosts - Add hostname mappings. Uses the same values as the docker client --add-host parameter.

extra_hosts:
 - "somehost:162.242.195.82"
 - "otherhost:50.31.209.229"

An entry with the ip address and hostname will be created in /etc/hosts > inside containers for this service, e.g:

162.242.195.82  somehost
50.31.209.229   otherhost

If you're building an Angular app, you can use jQuery, but there is a lot of good reasons to try to avoid it in favor of more angular driven paradigms. You can continue to use the styles provided by bootstrap, but replace the jQuery plugins with native angular by using UI Bootstrap

Include the Boostrap CSS files, Angular.js, and ui.Bootstrap.js:

<link href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
<script src="https://code.angularjs.org/1.2.20/angular.js"></script>
<script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.11.0.js"></script>

Make sure you've injected ui.bootstrap when you create your module like this:

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

Then you can use angular directives instead of data attributes picked up by jQuery:

<button type="button" class="btn btn-default" 
        title="Tooltip on left" data-toggle="tooltip" data-placement="left"
        tooltip="Tooltip on left" tooltip-placement="left" >
  Tooltip on left
</button>

Demo in Plunker

Avoiding UI Bootstrap

jQuery.min.js (94kb) + Bootstrap.min.js (32kb) is also giving you more than you need, and much more than ui-bootstrap.min.js (41kb).

And time spent downloading the modules is only one aspect of performance.

If you really wanted to only load the modules you needed, you can "Create a Build" and choose tooltips from the Bootstrap-UI website. Or you can explore the source code for tooltips and pick out what you need.

Here a minified custom build with just the tooltips and templates (6kb)

Use

$ java -XshowSettings
Property settings:
    java.home = /home/nisar/javadev/javasuncom/jdk1.7.0_17/jre
    java.io.tmpdir = /tmp

FYI, I needed to update the color of the calendar icon which didn't seem possible with properties like color, fill, etc.

I did eventually figure out that some filter properties will adjust the icon so while i did not end up figuring out how to make it any color, luckily all I needed was to make it so the icon was visible on a dark background so I was able to do the following:

body { background: black; }_x000D_
_x000D_
input[type="date"] { _x000D_
  background: transparent;_x000D_
  color: white;_x000D_
}_x000D_
_x000D_
input[type="date"]::-webkit-calendar-picker-indicator {_x000D_
  filter: invert(100%);_x000D_
}

<body>_x000D_
 <input type="date" />_x000D_
</body>

Hopefully this helps some people as for the most part chrome even directly says this is impossible.

In RSA crypto, when you generate a key pair, it's completely arbitrary which one you choose to be the public key, and which is the private key. If you encrypt with one, you can decrypt with the other - it works in both directions.

So, it's fairly simple to see how you can encrypt a message with the receiver's public key, so that the receiver can decrypt it with their private key.

A signature is proof that the signer has the private key that matches some public key. To do this, it would be enough to encrypt the message with that sender's private key, and include the encrypted version alongside the plaintext version. To verify the sender, decrypt the encrypted version, and check that it is the same as the plaintext.

Of course, this means that your message is not secret. Anyone can decrypt it, because the public key is well known. But when they do so, they have proved that the creator of the ciphertext has the corresponding private key.

However, this means doubling the size of your transmission - plaintext and ciphertext together (assuming you want people who aren't interested in verifying the signature, to read the message). So instead, typically a signature is created by creating a hash of the plaintext. It's important that fake hashes can't be created, so cryptographic hash algorithms such as SHA-2 are used.

So:

• To generate a signature, make a hash from the plaintext, encrypt it with your private key, include it alongside the plaintext.
• To verify a signature, make a hash from the plaintext, decrypt the signature with the sender's public key, check that both hashes are the same.

Adding onclick="this.checked=true"Solve my problem:
Example:

<input type="checkbox" id="scales" name="feature[]" value="scales" checked="checked" onclick="this.checked=true" />

I'm using Entity Framework Core with my ASP.Net Core 3.x WebAPI. I wanted one of my end points just to execute a particular Stored Procedure, and this is the code I needed:

namespace MikesBank.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class ResetController : ControllerBase
    {
        private readonly MikesBankContext _context;

        public ResetController(MikesBankContext context)
        {
            _context = context;
        }

        [HttpGet]
        public async Task<ActionResult> Get()
        {
            try
            {
                using (DbConnection conn = _context.Database.GetDbConnection())
                {
                    if (conn.State != System.Data.ConnectionState.Open)
                        conn.Open();
                    var cmd = conn.CreateCommand();
                    cmd.CommandText = "Reset_Data";
                    await cmd.ExecuteNonQueryAsync();
                }
                return new OkObjectResult(1);
            }
            catch (Exception ex)
            {
                return new BadRequestObjectResult(ex.Message);
            }
        }
    }
}

Notice how I need to get my DbContext which has been injected, but I also need to Open() this connection.

war - web archive. It is used to deploy web applications according to the servlet standard. It is a jar file containing a special directory called WEB-INF and several files and directories inside it (web.xml, lib, classes) as well as all the HTML, JSP, images, CSS, JavaScript and other resources of the web application

ear - enterprise archive. It is used to deploy enterprise application containing EJBs, web applications, and 3rd party libraries. It is also a jar file, it has a special directory called APP-INF that contains the application.xml file, and it contains jar and war files.

You can just use the pipe on its own:

"string1|string2"

for example:

String s = "string1, string2, string3";
System.out.println(s.replaceAll("string1|string2", "blah"));

Output:

blah, blah, string3

The main reason to use parentheses is to limit the scope of the alternatives:

String s = "string1, string2, string3";
System.out.println(s.replaceAll("string(1|2)", "blah"));

has the same output. but if you just do this:

String s = "string1, string2, string3";
System.out.println(s.replaceAll("string1|2", "blah"));

you get:

blah, stringblah, string3

because you've said "string1" or "2".

If you don't want to capture that part of the expression use ?::

String s = "string1, string2, string3";
System.out.println(s.replaceAll("string(?:1|2)", "blah"));

That's basically it. These are the methods I use to convert to and from Unix epoch time:

public static DateTime ConvertFromUnixTimestamp(double timestamp)
{
    DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
    return origin.AddSeconds(timestamp);
}

public static double ConvertToUnixTimestamp(DateTime date)
{
    DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
    TimeSpan diff = date.ToUniversalTime() - origin;
    return Math.Floor(diff.TotalSeconds);
}

Update: As of .Net Core 2.1 and .Net Standard 2.1 a DateTime equal to the Unix Epoch can be obtained from the static DateTime.UnixEpoch.

Apologize for keep answering 9 years questions.

I have follow @Michael's answer and it works.

I do it as UserControl where I can drag and drop like a Controls elements. I use MaterialDesign Theme from Nuget to get the Chevron icon and button ripple effect.

The running NumericUpDown from Micheal with modification will be as below:-

The code for user control:-

TemplateNumericUpDown.xaml

<UserControl x:Class="UserControlTemplate.TemplateNumericUpDown"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:UserControlTemplate"
             xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
             mc:Ignorable="d" MinHeight="48">
    <Grid Background="{DynamicResource {x:Static SystemColors.WindowFrameBrushKey}}">
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition Width="60"/>
        </Grid.ColumnDefinitions>
        <TextBox x:Name="txtNum" x:FieldModifier="private" Text="{Binding Path=NumValue}" TextChanged="TxtNum_TextChanged" FontSize="36" BorderThickness="0" VerticalAlignment="Center" Padding="5,0"/>
        <Grid Grid.Column="1">
            <Grid.RowDefinitions>
                <RowDefinition Height="30*"/>
                <RowDefinition Height="30*"/>
            </Grid.RowDefinitions>
            <Grid Background="#FF673AB7">
                <Viewbox HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Height="Auto" Width="Auto">
                    <materialDesign:PackIcon Kind="ChevronUp" Foreground="White" Height="32.941" Width="32"/>
                </Viewbox>
                <Button x:Name="cmdUp" x:FieldModifier="private" Click="CmdUp_Click" Height="Auto" BorderBrush="{x:Null}" Background="{x:Null}"/>
            </Grid>
            <Grid Grid.Row="1" Background="#FF673AB7">
                <Viewbox HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Height="Auto" Width="Auto">
                    <materialDesign:PackIcon Kind="ChevronDown" Foreground="White" Height="32.942" Width="32"/>
                </Viewbox>
                <Button x:Name="cmdDown" x:FieldModifier="private" Click="CmdDown_Click" Height="Auto" BorderBrush="{x:Null}" Background="{x:Null}"/>
            </Grid>
        </Grid>
    </Grid>
</UserControl>

TemplateNumericUpDown.cs

using System.Windows;
using System.Windows.Controls;

namespace UserControlTemplate
{
    /// <summary>
    /// Interaction logic for TemplateNumericUpDown.xaml
    /// </summary>
    public partial class TemplateNumericUpDown : UserControl
    {
        private int _numValue = 0;
        public TemplateNumericUpDown()
        {
            InitializeComponent();
            txtNum.Text = _numValue.ToString();
        }
        public int NumValue
        {
            get { return _numValue; }
            set
            {
                if (value >= 0)
                {
                    _numValue = value;
                    txtNum.Text = value.ToString();
                }
            }
        }

        private void CmdUp_Click(object sender, RoutedEventArgs e)
        {
            NumValue++;
        }

        private void CmdDown_Click(object sender, RoutedEventArgs e)
        {
            NumValue--;
        }

        private void TxtNum_TextChanged(object sender, TextChangedEventArgs e)
        {
            if (txtNum == null)
            {
                return;
            }

            if (!int.TryParse(txtNum.Text, out _numValue))
                txtNum.Text = _numValue.ToString();
        }
    }
}

On MyPageDesign.xaml, drag and drop created usercontrol will having <UserControlTemplate:TemplateNumericUpDown HorizontalAlignment="Left" Height="100" VerticalAlignment="Top" Width="100"/>

To get the value from the template, I use

string Value1 = JournalNumStart.NumValue;
string Value2 = JournalNumEnd.NumValue;

I'm not in good skill yet to binding the Height of the control based from FontSize element, so I set the from my page fontsize manually in usercontrol.

** Note:- I have change the "Archieve" name to Archive on my program =)

You can change the default namespace:
-> Project -> XXX Properties...
On Application tab: Default namespace

Other than that:
Ctrl-H
Find: WindowsFormsApplication16
Replace: MyName

I would use the tag property like you said, setting the tag like so:

[button setTag:indexPath.row];

then getting the tag inside of the buttonPressedAction like so:

((UIButton *)sender).tag

Or

UIButton *button = (UIButton *)sender; 
button.tag;

ngRoute is part of the core AngularJS framework.

ui-router is a community library that has been created to attempt to improve upon the default routing capabilities.

Here is a good article about configuring/setting up ui-router:

http://www.ng-newsletter.com/posts/angular-ui-router.html

In the sense you mean — no, you cannot.

You can declare a va_arg function like

void my_func(char* format, ...);

, but you'll need to pass some kind of information about number of variables and their types in the first argument — like printf() does.

Border around div, rather than page body margin

Another solution - I just wanted a simple border around the edge of my page, and I wanted 100% height when the content was smaller than that.

Border-box didn't work, and the fixed positioning seemed wrong for such a simple need.

I ended up adding a border to my container, instead of relying on the margin of the body of the page - it looks like this :

body, html {
    height: 100%;
    margin: 0;
}

.container {
    width: 100%;
    min-height: 100%;
    border: 8px solid #564333;
}

We use Slick Grid in Stack Exchange Data Explorer (example containing 2000 rows).

I found it outperforms jqGrid and flexigrid. It has a very complete feature set and I could not recommend it enough.

Samples of its usage are here.

You can see source samples on how it is integrated to an ASP.NET MVC app here: https://code.google.com/p/stack-exchange-data-explorer/

background-image takes multiple values.

so a combination of just 1 color linear-gradient and css blend modes will do the trick.

.testclass {
    background-image: url("../images/image.jpg"), linear-gradient(rgba(0,0,0,0.5),rgba(0,0,0,0.5));
    background-blend-mode: overlay;
}

note that there is no support on IE/Edge for CSS blend-modes at all.

Button ok= view.findViewById(R.id.btSettingOK);
Fragment me=this;
ok.setOnClickListener( new View.OnClickListener(){
    public void onClick(View v){
     getActivity().getFragmentManager().beginTransaction().remove(me).commit();
    }
});

Try this

for %i in (javaw.exe) do @echo. %~$PATH:i

crontab does not understand "intervals", it only understands "schedule"

valid hours: 0-23 -- valid minutes: 0-59

example #1

30 * * * * your_command

this means "run when the minute of each hour is 30" (would run at: 1:30, 2:30, 3:30, etc)

example #2

*/30 * * * * your_command

this means "run when the minute of each hour is evenly divisible by 30" (would run at: 1:30, 2:00, 2:30, 3:00, etc)

example #3

0,30 * * * * your_command

this means "run when the minute of each hour is 0 or 30" (would run at: 1:30, 2:00, 2:30, 3:00, etc)

it's another way to accomplish the same results as example #2

example #4

19 * * * * your_command

this means "run when the minute of each hour is 19" (would run at: 1:19, 2:19, 3:19, etc)

example #5

*/19 * * * * your_command

this means "run when the minute of each hour is evenly divisible by 19" (would run at: 1:19, 1:38, 1:57, 2:19, 2:38, 2:57 etc)

note: several refinements have been made to this post by various users including the author

After fiddling around for a while, I figured things out, and am posting them here hoping it will help others.

Intuitively, np.where is like asking "tell me where in this array, entries satisfy a given condition".

>>> a = np.arange(5,10)
>>> np.where(a < 8)       # tell me where in a, entries are < 8
(array([0, 1, 2]),)       # answer: entries indexed by 0, 1, 2

It can also be used to get entries in array that satisfy the condition:

>>> a[np.where(a < 8)] 
array([5, 6, 7])          # selects from a entries 0, 1, 2

When a is a 2d array, np.where() returns an array of row idx's, and an array of col idx's:

>>> a = np.arange(4,10).reshape(2,3)
array([[4, 5, 6],
       [7, 8, 9]])
>>> np.where(a > 8)
(array(1), array(2))

As in the 1d case, we can use np.where() to get entries in the 2d array that satisfy the condition:

>>> a[np.where(a > 8)] # selects from a entries 0, 1, 2

array([9])

Note, when a is 1d, np.where() still returns an array of row idx's and an array of col idx's, but columns are of length 1, so latter is empty array.

Jakarta (Java) Enterprise Edition 8 includes the JSON-B (Java API for JSON Binding). So, if you are using a Jakarta EE 8 server, like Payara 5, JSON-B will be available out of the box.

A simple example, without custom configuration:

public static class Dog {
    public String name;
    public int age;
    public boolean bites;
}

// Create a dog instance
Dog dog = new Dog();
dog.name = "Falco";
dog.age = 4;
dog.bites = false;

// Create Jsonb and serialize
Jsonb jsonb = JsonbBuilder.create();
String result = jsonb.toJson(dog);

// Deserialize back
dog = jsonb.fromJson("{\"name\":\"Falco\",\"age\":4,\"bites\":false}", Dog.class);

You can customize the mapping by using configuration, annotations, adapters and (de)serializers.

If you are not using a Jakarta EE 8 use can always install JSON-B.

I've used SQL Delta before (http://www.sqldelta.com/), it's really good. Not free however, not sure how prices compare to Red-Gates

I use nested each - for me this is the easiest solution (Easy to control/change "what you do with the values - in my example output data-attributes as ul-list) (Jquery Code)

var model = $(".model");_x000D_
_x000D_
var ul = $("<ul>").appendTo("body");_x000D_
_x000D_
$(model).each(function(index, item) {_x000D_
  ul.append($(document.createElement("li")).text($(this).text()));_x000D_
  $.each($(this).data(), function(key, value) {_x000D_
    ul.append($(document.createElement("strong")).text(key + ": " + value));_x000D_
    ul.append($(document.createElement("br")));_x000D_
  }); //inner each_x000D_
  ul.append($(document.createElement("hr")));_x000D_
}); // outer each_x000D_
_x000D_
/*print html*/_x000D_
var htmlString = $("ul").html();_x000D_
$("code").text(htmlString);

<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.17.1/prism.min.js"></script>_x000D_
<link href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.17.1/themes/prism-okaidia.min.css" rel="stylesheet"/>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<h1 id="demo"></h1>_x000D_
_x000D_
<ul>_x000D_
  <li class="model" data-price="45$" data-location="Italy" data-id="1234">Model 1</li>_x000D_
  <li class="model" data-price="75$" data-location="Israel" data-id="4321">Model 2</li> _x000D_
  <li class="model" data-price="99$" data-location="France" data-id="1212">Model 3</li> _x000D_
</ul>_x000D_
_x000D_
<pre>_x000D_
<code class="language-html">_x000D_
  _x000D_
</code>_x000D_
</pre>_x000D_
_x000D_
<h2>Generate list by code</h2>_x000D_
<br>

Codepen: https://codepen.io/ezra_siton/pen/GRgRwNw?editors=1111

I suggest a custom alias on you .gitconfig.

You have to way to do:

1) With git command:

git config --global alias.check-file <command>

2) Editing ~/.gitconfig and add this line on alias section:

[alias]
    check-file = "!f() { if [ $# -eq 0 ]; then echo 'Filename missing!'; else tracked=$(git ls-files ${1}); if [[ -z ${tracked} ]]; then echo 'File not tracked'; else echo 'File tracked'; fi; fi;  };  f"

Once launched command (1) or saved file (2), on your workspace you can test it:

$ git check-file
$ Filename missing 

$ git check-file README.md
$ File tracked 

$ git check-file foo
$ File not tracked

For those who use com.nhaarman.mockitokotlin2.mock {}

This error occurs when, for example, we create a mock inside another mock

mock {
    on { x() } doReturn mock {
        on { y() } doReturn z()
    }
}

The solution to this is to create the child mock in a variable and use the variable in the scope of the parent mock to prevent the mock creation from being explicitly nested.

val liveDataMock = mock {
        on { y() } doReturn z()
}
mock {
    on { x() } doReturn liveDataMock
}

GL

d = dict.fromkeys(a, 0)

a is the list, 0 is the default value. Pay attention not to set the default value to some mutable object (i.e. list or dict), because it will be one object used as value for every key in the dictionary (check here for a solution for this case). Numbers/strings are safe.

varchar(10) will store 10 characters, which may be more than 10 bytes. In indexes, it will allocate the maximium length of the field - so if you are using UTF8-mb4, it will allocate 40 bytes for the 10 character field.

If you are a vim purist, skip reading this answer. OTOH, if you are new to vim and are looking for a few helpful tips you wont find in the many hundred of vim tutorials and blogs, read on... :-)

A few un-orthodox (vim) ways

It's 2014, and as someone who's recently gone back to vim I can offer a few, potentially contrarian, points of view and tips.

Use shift+left or shift+right to traverse words

While repetition is a powerful concept in vim, I (personally) find it strange that using it either forces me to count (lines, characters, words, etc.) or make guesses. My brain usually works like "I want the cursor there" and not like "I want the cursor _5_words_to_the_left_". Quickly being able to move the cursor, and visually observe where the insertion point this way allows me to keep my mind on what I'm editing instead of having to count how many hops I need to make to get to where I need to edit.

Turn on mouse mode, and use the mouse wheel and clicking

...to navigate large bodies of text.

Most (all) modern computers have a touchpad that is closely integrated with the keyboard (e.g. MacBooks). Industrial designers have spent many man years optimizing these designs so that the old problem of having to move the hand away from the keyboard is no longer a real issue. Okay, it is if you are used to a mouse and don't like to switch, but for anyone new to vim (like those that might find this post via a search), this should not be much of an issue.

As a bonus, click + drag puts you in visual mode

With mouse enabled, clicking and dragging has the effect of switching to visual mode and marking a region for yanking.

And use the scroll wheel

Using the mouse (wheel) to scroll around, and clicking to position the cursor (duh) just works. See http://usevim.com/2012/05/16/mouse/ for more on this.

And so...

These are what I'd call more modern (using mouse, scroll wheel, etc.) ways of navigating in vim, equally effective depending on your preference of input.

HTH

Follow the below steps to unlock the handlers at the parent level:

1) In the connections tree(in IIS), go to your server node and then to your website.

2) For the website, in the right window you will see configuration editor under Management.

3) Double click on the configuration editor.

4) In the window that opens, on top you will find a drop down for sections. Choose "system.webServer/handlers" from the drop down.

5) On the right side, there is another drop down. Choose "ApplicationHost.Config "

6) On the right most pane, you will find "Unlock Section" under "Section" heading. Click on that.

7) Once the handlers at the applicationHost is unlocked, your website should run fine.

If you want to see which IP addresses are in use on a specific subnet then there are several different IP Address managers.

Try Angry IP Scanner or Solarwinds or Advanced IP Scanner

Answer in Swift:

Add delegate UIGestureRecognizerDelegate to your UITableViewController.

Within UITableViewController:

override func viewDidLoad() {
    super.viewDidLoad()

    let longPressGesture:UILongPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: "handleLongPress:")
    longPressGesture.minimumPressDuration = 1.0 // 1 second press
    longPressGesture.delegate = self
    self.tableView.addGestureRecognizer(longPressGesture)

}

And the function:

func handleLongPress(longPressGesture:UILongPressGestureRecognizer) {

    let p = longPressGesture.locationInView(self.tableView)
    let indexPath = self.tableView.indexPathForRowAtPoint(p)

    if indexPath == nil {
        print("Long press on table view, not row.")
    }
    else if (longPressGesture.state == UIGestureRecognizerState.Began) {
        print("Long press on row, at \(indexPath!.row)")
    }

}

CPython uses the Global Interpreter Lock which makes parallel programing a bit more interesting than C++

This topic has several useful examples and descriptions of the challenge:

Python Global Interpreter Lock (GIL) workaround on multi-core systems using taskset on Linux?

update: As GreenTurtle correctly remarked, the following is wrong

I would just write

boolean result = Arrays.asList(FooEnum.values()).contains("Foo");

This is possibly less performant than catching a runtime exception, but makes for much cleaner code. Catching such exceptions is always a bad idea, since it is prone to misdiagnosis. What happens when the retrieval of the compared value itself causes an IllegalArgumentException ? This would then be treaten like a non matching value for the enumerator.

Try indexing (so you want a generic solution not only for this, so index order can be just what you want):

l=[0,2,1] # index order
frame=frame[[frame.columns[i] for i in l]]

Now:

print(frame)

Is:

   one thing second thing  other thing
0          1           0.1           a
1          2           0.2           e
2          3           1.0           i
3          4           2.0           o

This is also easy:

string data = "THExxQUICKxxBROWNxxFOX";
string[] arr = data.Split("xx".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);

I'd recommend you go with REST first - if you're using Java look at JAX-RS and the Jersey implementation. REST is much simpler and easy to interop in many languages.

As others have said in this thread, the problem with SOAP is its complexity when the other WS-* specifications come in and there are countless interop issues if you stray into the wrong parts of WSDL, XSDs, SOAP, WS-Addressing etc.

The best way to judge the REST v SOAP debate is look on the internet - pretty much all the big players in the web space, google, amazon, ebay, twitter et al - tend to use and prefer RESTful APIs over the SOAP ones.

The other nice approach to going with REST is that you can reuse lots of code and infratructure between a web application and a REST front end. e.g. rendering HTML versus XML versus JSON of your resources is normally pretty easy with frameworks like JAX-RS and implicit views - plus its easy to work with RESTful resources using a web browser

If you want to dubbel check the amount of cores you have on your machine to the number your java program is giving you.

In Linux terminal: lscpu

In Windows terminal (cmd): echo %NUMBER_OF_PROCESSORS%

In Mac terminal: sysctl -n hw.ncpu

myString.count('a');

more info here

With STL, programmers use iterators for traversing through containers, since iterator is an abstract concept, implemented in all standard containers. For example, std::list has no operator [] at all.

FOUND A SOLUTION - using the Abraham TwitterOAuth library. If you are using an older implementation, the following lines should be added after the new TwitterOAuth object is instantiated:

$connection->host = "https://api.twitter.com/1.1/";
$connection->ssl_verifypeer = TRUE;
$connection->content_type = 'application/x-www-form-urlencoded';

The first 2 lines are now documented in Abraham library Readme file, but the 3rd one is not. Also make sure that your oauth_version is still 1.0.

Here is my code for getting all user data from 'users/show' with a newly authenticated user and returning the user full name and user icon with 1.1 - the following code is implemented in the authentication callback file:

session_start();
require ('twitteroauth/twitteroauth.php');
require ('twitteroauth/config.php');

$consumer_key = '****************';
$consumer_secret = '**********************************';

$to = new TwitterOAuth($consumer_key, $consumer_secret);

$tok = $to->getRequestToken('http://exampleredirect.com?twitoa=1');

$token = $tok['oauth_token'];
$secret = $tok['oauth_token_secret'];

//save tokens to session
$_SESSION['ttok'] = $token;
$_SESSION['tsec'] = $secret;

$request_link = $to->getAuthorizeURL($token,TRUE);

header('Location: ' . $request_link);

The following code then is in the redirect after authentication and token request

if($_REQUEST['twitoa']==1){
    require ('twitteroauth/twitteroauth.php');
    require_once('twitteroauth/config.php');
    //Twitter Creds
    $consumer_key = '*****************';
    $consumer_secret = '************************************';

    $oauth_token = $_GET['oauth_token']; //ex Request vals->http://domain.com/twitter_callback.php?oauth_token=MQZFhVRAP6jjsJdTunRYPXoPFzsXXKK0mQS3SxhNXZI&oauth_verifier=A5tYHnAsbxf3DBinZ1dZEj0hPgVdQ6vvjBJYg5UdJI

    $ttok = $_SESSION['ttok'];
    $tsec = $_SESSION['tsec'];

    $to = new TwitterOAuth($consumer_key, $consumer_secret, $ttok, $tsec);
    $tok = $to->getAccessToken();
    $btok = $tok['oauth_token'];
    $bsec = $tok['oauth_token_secret'];
    $twit_u_id = $tok['user_id'];
    $twit_screen_name = $tok['screen_name'];

    //Twitter 1.1 DEBUG
    //print_r($tok);
    //echo '<br/><br/>';
    //print_r($to);
    //echo '<br/><br/>';
    //echo $btok . '<br/><br/>';
    //echo $bsec . '<br/><br/>';
    //echo $twit_u_id . '<br/><br/>';
    //echo $twit_screen_name . '<br/><br/>';

    $twit_screen_name=urlencode($twit_screen_name);
    $connection = new TwitterOAuth($consumer_key, $consumer_secret, $btok, $bsec);
    $connection->host = "https://api.twitter.com/1.1/";
    $connection->ssl_verifypeer = TRUE;
    $connection->content_type = 'application/x-www-form-urlencoded';
    $ucontent = $connection->get('users/show', array('screen_name' => $twit_screen_name));

    //echo 'connection:<br/><br/>';
    //print_r($connection);
    //echo '<br/><br/>';
    //print_r($ucontent);

    $t_user_name = $ucontent->name;
    $t_user_icon = $ucontent->profile_image_url;

    //echo $t_user_name.'<br/><br/>';
    //echo $t_user_icon.'<br/><br/>';
}

It took me way too long to figure this one out. Hope this helps someone!!

If you want to split the data set once in two halves, you can use numpy.random.shuffle, or numpy.random.permutation if you need to keep track of the indices:

import numpy
# x is your dataset
x = numpy.random.rand(100, 5)
numpy.random.shuffle(x)
training, test = x[:80,:], x[80:,:]

or

import numpy
# x is your dataset
x = numpy.random.rand(100, 5)
indices = numpy.random.permutation(x.shape[0])
training_idx, test_idx = indices[:80], indices[80:]
training, test = x[training_idx,:], x[test_idx,:]

There are many ways to repeatedly partition the same data set for cross validation. One strategy is to resample from the dataset, with repetition:

import numpy
# x is your dataset
x = numpy.random.rand(100, 5)
training_idx = numpy.random.randint(x.shape[0], size=80)
test_idx = numpy.random.randint(x.shape[0], size=20)
training, test = x[training_idx,:], x[test_idx,:]

Finally, sklearn contains several cross validation methods (k-fold, leave-n-out, ...). It also includes more advanced "stratified sampling" methods that create a partition of the data that is balanced with respect to some features, for example to make sure that there is the same proportion of positive and negative examples in the training and test set.

My IIS 7.5 does not understand tag in web.config In VS 2010 it is underline that tag also. Check your config file accurate to find all underlined tags. I put it in the comment and error goes away.

private void button1_Click(object sender, EventArgs e)
{
    SqlConnection con = new SqlConnection();
    con.ConnectionString = "data source=CHANCHAL\SQLEXPRESS;initial catalog=AssetManager;user id=GIPL-PC\GIPL;password=";
    con.Open();
    SqlDataAdapter ad = new SqlDataAdapter("select * from detail1", con);
    SqlCommandBuilder cmdbl = new SqlCommandBuilder(ad);
    DataSet ds = new DataSet("detail1");
    ad.Fill(ds, "detail1");
    DataRow row = ds.Tables["detail1"].NewRow();
    row["Name"] = textBox1.Text;
    row["address"] =textBox2.Text;
    ds.Tables["detail1"].Rows.Add(row);
    ad.Update(ds, "detail1");
    con.Close();
    MessageBox.Show("insert secussfully"); 
}

If you are using ActionBarSherlock, you can get the height with

@dimen/abs__action_bar_default_height

kk: (01-24) will look like 01, 02..24.

HH:(00-23) will look like 00, 01..23.

hh:(01-12 in AM/PM) will look like 01, 02..12.

so the last printout (working2) is a bit weird. It should say 12:00:00 (edit: if you were setting the working2 timezone and format, which (as kdagli pointed out) you are not)

For the 1st part count NaN we have multiple way.

Method 1 count , due to the count will ignore the NaN which is different from size

print(len(df) - df.count())

Method 2 isnull / isna chain with sum

print(df.isnull().sum())
#print(df.isna().sum())

Method 3 describe / info : notice this will output the 'notnull' value count

print(df.describe())
#print(df.info())

Method from numpy

print(np.count_nonzero(np.isnan(df.values),axis=0))

For the 2nd part of the question, If we would like drop the column by the thresh,we can try with dropna

thresh, optional Require that many non-NA values.

Thresh = n # no null value require, you can also get the by int(x% * len(df))
df = df.dropna(thresh = Thresh, axis = 1)

You appear to have a heredoc containing a single SQL*Plus command, though it doesn't look right as noted in the comments. You can either pass a value in the heredoc:

sqlplus -S user/pass@localhost << EOF
@/opt/D2RQ/file.sql BUILDING
exit;
EOF

or if BUILDING is $2 in your script:

sqlplus -S user/pass@localhost << EOF
@/opt/D2RQ/file.sql $2
exit;
EOF

If your file.sql had an exit at the end then it would be even simpler as you wouldn't need the heredoc:

sqlplus -S user/pass@localhost @/opt/D2RQ/file.sql $2

In your SQL you can then refer to the position parameters using substitution variables:

...
}',SEM_Models('&1'),NULL,
...

The &1 will be replaced with the first value passed to the SQL script, BUILDING; because that is a string it still needs to be enclosed in quotes. You might want to set verify off to stop if showing you the substitutions in the output.

You can pass multiple values, and refer to them sequentially just as you would positional parameters in a shell script - the first passed parameter is &1, the second is &2, etc. You can use substitution variables anywhere in the SQL script, so they can be used as column aliases with no problem - you just have to be careful adding an extra parameter that you either add it to the end of the list (which makes the numbering out of order in the script, potentially) or adjust everything to match:

sqlplus -S user/pass@localhost << EOF
@/opt/D2RQ/file.sql total_count BUILDING
exit;
EOF

or:

sqlplus -S user/pass@localhost << EOF
@/opt/D2RQ/file.sql total_count $2
exit;
EOF

If total_count is being passed to your shell script then just use its positional parameter, $4 or whatever. And your SQL would then be:

SELECT COUNT(*) as &1
FROM TABLE(SEM_MATCH(
'{
        ?s rdf:type :ProcessSpec .
        ?s ?p ?o
}',SEM_Models('&2'),NULL,
SEM_ALIASES(SEM_ALIAS('','http://VISION/DataSource/SEMANTIC_CACHE#')),NULL));

If you pass a lot of values you may find it clearer to use the positional parameters to define named parameters, so any ordering issues are all dealt with at the start of the script, where they are easier to maintain:

define MY_ALIAS = &1
define MY_MODEL = &2

SELECT COUNT(*) as &MY_ALIAS
FROM TABLE(SEM_MATCH(
'{
        ?s rdf:type :ProcessSpec .
        ?s ?p ?o
}',SEM_Models('&MY_MODEL'),NULL,
SEM_ALIASES(SEM_ALIAS('','http://VISION/DataSource/SEMANTIC_CACHE#')),NULL));

From your separate question, maybe you just wanted:

SELECT COUNT(*) as &1
FROM TABLE(SEM_MATCH(
'{
        ?s rdf:type :ProcessSpec .
        ?s ?p ?o
}',SEM_Models('&1'),NULL,
SEM_ALIASES(SEM_ALIAS('','http://VISION/DataSource/SEMANTIC_CACHE#')),NULL));

... so the alias will be the same value you're querying on (the value in $2, or BUILDING in the original part of the answer). You can refer to a substitution variable as many times as you want.

That might not be easy to use if you're running it multiple times, as it will appear as a header above the count value in each bit of output. Maybe this would be more parsable later:

select '&1' as QUERIED_VALUE, COUNT(*) as TOTAL_COUNT

If you set pages 0 and set heading off, your repeated calls might appear in a neat list. You might also need to set tab off and possibly use rpad('&1', 20) or similar to make that column always the same width. Or get the results as CSV with:

select '&1' ||','|| COUNT(*)

Depends what you're using the results for...

On IntelliJ IDEA platform you can use Java Decompiler IntelliJ Plugin. It allows you to display all the Java sources during your debugging process, even if you do not have them all. It is based on the famous tools JD-GUI.

if it is 64bit them - C:\Program Files (x86)\Reference Assemblies\Microsoft\WindowsPowerShell**3.0**

and version could be different

If yoou use Contains, you could get false positives. Suppose you have a string that contains such text: "My text data Mdd LH" Using Contains method, this method will return true for call. The approach is use equals operator:

bool exists = myStringList.Any(c=>c == "Mdd LH")

move c:\sourcefolder c:\targetfolder

will work, but you will end up with a structure like this:

c:\targetfolder\sourcefolder\[all the subfolders & files]

If you want to move just the contents of one folder to another, then this should do it:

SET src_folder=c:\srcfold
SET tar_folder=c:\tarfold

for /f %%a IN ('dir "%src_folder%" /b') do move "%src_folder%\%%a" "%tar_folder%\"

pause

Declare @Dato xml
Set @Dato = Convert(xml, '<dato>FF</dato>')
Select Cast( rw.value( 'xs:hexBinary( text()[1])' , 'varbinary(max)' ) as int ) From @Dato.nodes('dato') as T(rw)

<!DOCTYPE html>
<html>
<head></head>
<body>
<div style=" background-color: #00000088"> Hi there </div>
<!-- #00 would be r, 00 would be g, 00 would be b, 88 would be a. -->
</body>
</html>

including 4 sets of numbers would make it rgba, not cmyk, but either way would work (rgba= 00000088, cmyk= 0%, 0%, 0%, 50%)

Radio buttons have another attribute - checked or unchecked. You need to set which button was selected by the user, so you have to write PHP code inside the HTML with these values - checked or unchecked. Here's one way to do it:

The PHP code:

<?PHP
    $male_status = 'unchecked';
    $female_status = 'unchecked';

    if (isset($_POST['Submit1'])) {
         $selected_radio = $_POST['gender'];

         if ($selected_radio == 'male') {
                $male_status = 'checked';
          }else if ($selected_radio == 'female') {
                $female_status = 'checked';
          }
    }
?>

The HTML FORM code:

<FORM name ="form1" method ="post" action ="radioButton.php">
   <Input type = 'Radio' Name ='gender' value= 'male'
   <?PHP print $male_status; ?>
   >Male
   <Input type = 'Radio' Name ='gender' value= 'female' 
   <?PHP print $female_status; ?>
   >Female
   <P>
   <Input type = "Submit" Name = "Submit1" VALUE = "Select a Radio Button">
</FORM>

Just delete the table and create a new table with a different name. Also Don't delete entire row for that table. It seems when entire row containing table row is delete it damages the DataBodyRange is damaged

select CUSTOMER_CODE,nvl(sum(decode(TRANSACTION_TYPE,'D',AMOUNT)),0)) DEBIT,nvl(sum(DECODE(TRANSACTION_TYPE,'C',AMOUNT)),0)) CREDIT,
nvl(sum(decode(TRANSACTION_TYPE,'D',AMOUNT)),0)) - nvl(sum(DECODE(TRANSACTION_TYPE,'C',AMOUNT)),0)) BALANCE from TRANSACTION   
GROUP BY CUSTOMER_CODE
having nvl(sum(decode(TRANSACTION_TYPE,'D',AMOUNT)),0)) > 0
AND (nvl(sum(decode(TRANSACTION_TYPE,'D',AMOUNT)),0)) - nvl(sum(DECODE(TRANSACTION_TYPE,'C',AMOUNT)),0))) > 0

Put your code inside the try catch block: i.e :

try{
  if(in.available()!=0){
    // ------
  }
}catch(EOFException eof){
  //
}catch(Exception e){
  //
}
}

From within a Dockerfile something like the following should do the trick:

RUN apt-get update && \
     apt-get install -y net-tools

From memory it's best practice to combine the update and the package installation lines to prevent docker caching the update step which can result in out-dated packages being installed.

Installing it via the CLI or a shell script:

apt-get update && apt-get install net-tools

Need to convert it in base64.

JS have btoa() function for it.

For example:

var img = document.createElement('img');
img.src = 'data:image/jpeg;base64,' + btoa('your-binary-data');
document.body.appendChild(img);

But i think what your binary data in pastebin is invalid - the jpeg data must be ended on 'ffd9'.

Update:

Need to write simple hex to base64 converter:

function hexToBase64(str) {
    return btoa(String.fromCharCode.apply(null, str.replace(/\r|\n/g, "").replace(/([\da-fA-F]{2}) ?/g, "0x$1 ").replace(/ +$/, "").split(" ")));
}

And use it:

img.src = 'data:image/jpeg;base64,' + hexToBase64('your-binary-data');

See working example with your hex data on jsfiddle

Swift 3 & IOS 10.2

UIApplication.shared.open(URL(string: "http://www.stackoverflow.com")!, options: [:], completionHandler: nil)

Swift 3 & IOS 10.2

function ngController($scope,$filter){
    $scope.name = "aaaa";
    $scope.age = "32";

     $scope.result = function(){
        return $filter('lowercase')($scope.name);
    };
}

The controller method 2nd argument name should be "$filter" then only the filter functionality will work with this example. In this example i have used the "lowercase" Filter.

use of onScroll enters infinite loop. onMomentumScrollEnd or onScrollEndDrag can be used instead

You can use that gist, pretty easy to use, stores your settings in local storage: https://gist.github.com/4533361

Is there a prize for being lazy and using the transpose function of NumPy arrays? ;)

import numpy as np

a = np.array([(1,2,3), (4,5,6)])

b = a.transpose()

Web Browser control might work. http://ryanfarley.com/blog/archive/2004/12/23/1330.aspx

Also a bunch of pdf open source c# projects here http://csharp-source.net/open-source/pdf-libraries

Both of these work,

jQuery(this).attr("id");

and

alert(this.id);

you did not use S anywhere in your algorithm (besides modifying it). the idea of dijkstra is once a vertex is on S, it will not be modified ever again. in this case, once B is inside S, you will not reach it again via C.

this fact ensures the complexity of O(E+VlogV) [otherwise, you will repeat edges more then once, and vertices more then once]

in other words, the algorithm you posted, might not be in O(E+VlogV), as promised by dijkstra's algorithm.

Maybe rather then read 'one line at a time' and join the strings, try 'read all available' so as to avoid the scanning for end of line, and to also avoid string joins.

ie, InputStream.available() and InputStream.read(byte[] b), int offset, int length)

The object keyword creates a new singleton type, which is like a class that only has a single named instance. If you’re familiar with Java, declaring an object in Scala is a lot like creating a new instance of an anonymous class.

Scala has no equivalent to Java’s static keyword, and an object is often used in Scala where you might use a class with static members in Java.

Contributing to ferrix example,

class Battery():

    def __init__(self, battery_size = 60):
        self.battery_size = battery_size
    def get_range(self):
        if self.battery_size == 70:
            range = 240
        elif self.battery_size == 85:
        range = 270

        message = "This car can go approx " + str(range)
        message += "Fully charge"
        print(message)

My message will not execute, because none of my conditions are fulfill therefore receiving " UnboundLocalError: local variable 'range' referenced before assignment"

def get_range(self):
    if self.battery_size <= 70:
        range = 240
    elif self.battery_size >= 85:
        range = 270

One more simple way is using the File.AppendText it appends UTF-8 encoded text to an existing file, or to a new file if the specified file does not exist and returns a System.IO.StreamWriter

using (System.IO.StreamWriter sw = System.IO.File.AppendText(logFilePath + "log.txt"))
{                                                
    sw.WriteLine("this is a log");
}

if you are want session timeout for website than remove

<authentication mode="Forms">
      <forms timeout="50"/>
</authentication>

tag from web.config file.

In the case you need to remove line breaks from the begin or end of the string, you may use this:

UPDATE table 
SET field = regexp_replace(field, E'(^[\\n\\r]+)|([\\n\\r]+$)', '', 'g' );

Have in mind that the hat ^ means the begin of the string and the dollar sign $ means the end of the string.

Hope it help someone.

You have to add parameters since it is needed for the SP to execute

using (SqlConnection con = new SqlConnection(dc.Con))
{
    using (SqlCommand cmd = new SqlCommand("SP_ADD", con))
    {
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.AddWithValue("@FirstName", txtfirstname.Text);
        cmd.Parameters.AddWithValue("@LastName", txtlastname.Text);
        con.Open();
        cmd.ExecuteNonQuery();
    }            
}

It's time to use jupyterlab

Finally, a much-needed upgrade has come to notebooks. By default, it uses the full width of your window like any other full-fledged native IDE.

All you have to do is:

pip install jupyterlab
# if you use conda
conda install -c conda-forge jupyterlab
# to run 
jupyter lab    # instead of jupyter notebook

Here is a screenshot from blog.Jupyter.org

Maybe I write this too late, but I have gotten the similar problem when I have tried to override methods for reading properties.

My problem have been: 1) Read property from env if this property has been set in env 2) Read property from system property if this property have been setted in system property 3) And last, read from application properties.

So, for resolving this problem I go to my bean configuration class

@Validated
@Configuration
@ConfigurationProperties(prefix = ApplicationConfiguration.PREFIX)
@PropertySource(value = "${application.properties.path}", factory = PropertySourceFactoryCustom.class)
@Data // lombok
public class ApplicationConfiguration {

    static final String PREFIX = "application";

    @NotBlank
    private String keysPath;

    @NotBlank
    private String publicKeyName;

    @NotNull
    private Long tokenTimeout;

    private Boolean devMode;

    public void setKeysPath(String keysPath) {
        this.keysPath = StringUtils.cleanPath(keysPath);
    }
}

And overwrite factory in @PropertySource. And then I have created my own implementation for reading properties.

    public class PropertySourceFactoryCustom implements PropertySourceFactory {

        @Override
        public PropertySource<?> createPropertySource(String name, EncodedResource resource) throws IOException {
            return name != null ? new PropertySourceCustom(name, resource) : new PropertySourceCustom(resource);
        }


    }

And created PropertySourceCustom

public class PropertySourceCustom extends ResourcePropertySource {


    public LifeSourcePropertySource(String name, EncodedResource resource) throws IOException {
        super(name, resource);
    }

    public LifeSourcePropertySource(EncodedResource resource) throws IOException {
        super(resource);
    }

    public LifeSourcePropertySource(String name, Resource resource) throws IOException {
        super(name, resource);
    }

    public LifeSourcePropertySource(Resource resource) throws IOException {
        super(resource);
    }

    public LifeSourcePropertySource(String name, String location, ClassLoader classLoader) throws IOException {
        super(name, location, classLoader);
    }

    public LifeSourcePropertySource(String location, ClassLoader classLoader) throws IOException {
        super(location, classLoader);
    }

    public LifeSourcePropertySource(String name, String location) throws IOException {
        super(name, location);
    }

    public LifeSourcePropertySource(String location) throws IOException {
        super(location);
    }

    @Override
    public Object getProperty(String name) {

        if (StringUtils.isNotBlank(System.getenv(name)))
            return System.getenv(name);

        if (StringUtils.isNotBlank(System.getProperty(name)))
            return System.getProperty(name);

        return super.getProperty(name);
    }
}

So, this has helped me.

Here's my answer - where the 'pop' is inefficient. Seems that all algorithms that come immediately to mind have N complexity, where N is the size of the list: whether you choose to do work on the 'pop' or do work on the 'push'

The algorithm where lists are traded back and fourth may be better, as a size calculation is not needed, although you still need to loop and compare with empty.

you can prove this algorithm cannot be written faster than N by noting that the information about the last element in a queue is only available through knowing the size of the queue, and that you must destroy data to get to that element, hence the 2nd queue.

The only way to make this faster is to not to use queues in the first place.

from data_structures import queue

class stack(object):
    def __init__(self):
        q1= queue 
        q2= queue #only contains one item at most. a temp var. (bad?)

    def push(self, item):
        q1.enque(item) #just stick it in the first queue.

    #Pop is inefficient
    def pop(self):
        #'spin' the queues until q1 is ready to pop the right value. 
        for N 0 to self.size-1
            q2.enqueue(q1.dequeue)
            q1.enqueue(q2.dequeue)
        return q1.dequeue()

    @property
    def size(self):
        return q1.size + q2.size

    @property
    def isempty(self):
        if self.size > 0:
           return True
        else
           return False

For all those who enjoying CONNECTIVITY_CHANGE broadcast, please note this is no more fired when app is in background in Android O.

https://developer.android.com/about/versions/o/background.html

In german VS-Environments(here 2015): Optionen/Umgebung/Tastatur. (english: options/environment/keyboard). Show Commands With "GeheZuKlammer" (english: "GoToBracket"). Set your own Shortcut.

Closing Visual Studio and re-opening worked for me. Must be a weird bug.

If Sheets("Sheet1").OLEObjects("CheckBox1").Object.Value = True Then

I believe Tim is right. You have a Form Control. For that you have to use this

If ActiveSheet.Shapes("Check Box 1").ControlFormat.Value = 1 Then

All the solutions did not really work for me, what did work was compare the elements scrollWidth to the scrollWidth of its parent (or child, depending on which element has the trigger).

When the child's scrollWidth is higher than its parents, it means .text-ellipsis is active.

When event is the parent element

function isEllipsisActive(event) {
    let el          = event.currentTarget;
    let width       = el.offsetWidth;
    let widthChild  = el.firstChild.offsetWidth;
    return (widthChild >= width);
}

When event is the child element

function isEllipsisActive(event) {
    let el          = event.currentTarget;
    let width       = el.offsetWidth;
    let widthParent = el.parentElement.scrollWidth;
    return (width >= widthParent);
}

This error can mean that a commit is missing in the submodule. That is, the repository (A) has a submodule (B). A wants to load B so that it is pointing to a certain commit (in B). If that commit is somehow missing, you'll get that error. Once possible cause: the reference to the commit was pushed in A, but the actual commit was not pushed from B. So I'd start there.

Less likely, there's a permissions problem, and the commit cannot be pulled (possible if you're using git+ssh).

Make sure the submodule paths look ok in .git/config and .gitmodules.

One last thing to try - inside the submodule directory: git reset HEAD --hard

Select (Select count(y.au_lname) from dbo.authors y
where y.au_lname + y.au_fname <= x.au_lname + y.au_fname) as Counterid,
x.au_lname,x.au_fname from authors x group by au_lname,au_fname
order by Counterid --Alternatively that can be done which is equivalent as above..

Reflection can take you from an object to a dictionary by iterating over the properties.

To go the other way, you'll have to use a dynamic ExpandoObject (which, in fact, already inherits from IDictionary, and so has done this for you) in C#, unless you can infer the type from the collection of entries in the dictionary somehow.

So, if you're in .NET 4.0 land, use an ExpandoObject, otherwise you've got a lot of work to do...

You can use:

git config --list

or look at your ~/.gitconfig file. The local configuration will be in your repository's .git/config file.

Use:

git config --list --show-origin

to see where that setting is defined (global, user, repo, etc...)

The most common way of doing this is to include the binary as base-64 in an element. However, this is a workaround, and adds a bit of volume to the file.

For example, this is the bytes 00 to 09 (note we needed 16 bytes to encode 10 bytes worth of data):

<xml><image>AAECAwQFBgcICQ==</image></xml>

how you do this encoding varies per architecture. For example, with .NET you might use Convert.ToBase64String, or XmlWriter.WriteBase64.

div.test td, div.test caption, div.test th 

works for me.

The child selector > does not work in IE6.

This works for multiple occurrences per line:

grep -o string * | wc -l

In a rails 5.1 app, I use this core extension built on top of ActiveRecord::Type::Boolean. It is working perfectly for me when I deserialize boolean from JSON string.

https://api.rubyonrails.org/classes/ActiveModel/Type/Boolean.html

# app/lib/core_extensions/string.rb
module CoreExtensions
  module String
    def to_bool
      ActiveRecord::Type::Boolean.new.deserialize(downcase.strip)
    end
  end
end

initialize core extensions

# config/initializers/core_extensions.rb
String.include CoreExtensions::String

rspec

# spec/lib/core_extensions/string_spec.rb
describe CoreExtensions::String do
  describe "#to_bool" do
    %w[0 f F false FALSE False off OFF Off].each do |falsey_string|
      it "converts #{falsey_string} to false" do
        expect(falsey_string.to_bool).to eq(false)
      end
    end
  end
end

another workaround:

var myarray = [];
$("#test").click(function() {
    myarray[index]=$("#drop").val();
    alert(myarray);
});

i wanted to add all checked checkbox to array. so example, if .each is used:

var vpp = [];
var incr=0;
$('.prsn').each(function(idx) {
   if (this.checked) {
       var p=$('.pp').eq(idx).val();
       vpp[incr]=(p);
       incr++;
   }
});
//do what ever with vpp array;

Is there a method equivalent to getJSONArray in org.json so that I have proper error handling in case it isn't an array?

It depends on your input; i.e. the stuff you fetch from the URL. If the value of the "datasets" attribute is an associative array rather than a plain array, you will get a ClassCastException.

But then again, the correctness of your old version also depends on the input. In the situation where your new version throws a ClassCastException, the old version will throw JSONException. Reference: http://www.json.org/javadoc/org/json/JSONObject.html#getJSONArray(java.lang.String)

You can use git stash - if something goes wrong, you can still revert from the stash. Similar to some other answer here, but this one also removes all unstaged files and also all unstaged deletes:

git add .
git stash

if you check that everything is OK, throw the stash away:

git stash drop

The answer from Bilal Maqsood with git clean also worked for me, but with the stash I have more control - if I do sth accidentally, I can still get my changes back

UPDATE

I think there is 1 more change (don't know why this worked for me before):

git add . -A instead of git add .

without the -A the removed files will not be staged

I am combining the solutions from answers of @FredFoo and @Renaud. My solution is able to apply @Renaud's preprocessing on the text corpus of @FredFoo and then display pairwise similarities where the similarity is greater than 0. I ran this code on Windows by installing python and pip first. pip is installed as part of python but you may have to explicitly do it by re-running the installation package, choosing modify and then choosing pip. I use the command line to execute my python code saved in a file "similarity.py". I had to execute the following commands:

>set PYTHONPATH=%PYTHONPATH%;C:\_location_of_python_lib_
>python -m pip install sklearn
>python -m pip install nltk
>py similarity.py

The code for similarity.py is as follows:

from sklearn.feature_extraction.text import TfidfVectorizer
import nltk, string
import numpy as np
nltk.download('punkt') # if necessary...

stemmer = nltk.stem.porter.PorterStemmer()
remove_punctuation_map = dict((ord(char), None) for char in string.punctuation)

def stem_tokens(tokens):
    return [stemmer.stem(item) for item in tokens]

def normalize(text):
    return stem_tokens(nltk.word_tokenize(text.lower().translate(remove_punctuation_map)))

corpus = ["I'd like an apple", 
           "An apple a day keeps the doctor away", 
           "Never compare an apple to an orange", 
           "I prefer scikit-learn to Orange", 
           "The scikit-learn docs are Orange and Blue"]  

vect = TfidfVectorizer(tokenizer=normalize, stop_words='english')
tfidf = vect.fit_transform(corpus)   
                                                                                                                                                                                                                    
pairwise_similarity = tfidf * tfidf.T

#view the pairwise similarities 
print(pairwise_similarity)

#check how a string is normalized
print(normalize("The scikit-learn docs are Orange and Blue"))

use this

<div id="date">23/05/2013</div>
<script type="text/javascript">
$(document).ready(function(){
  var x = $("#date").text();
    x.text(x.substring(0, 2) + '<br />'+x.substring(3));     
});
</script>

In my case I was using Jade and I was using HTTP repository URL. Changing the Url to HTTPS worked for me.

For VBA you need to initialise in two lines.

Sub TestArray()

Dim myArray
myArray = Array(1, 2, 4, 8)

End Sub

Yes to both questions. The using statement gets compiled into a try/finally block

using (SqlConnection connection = new SqlConnection(connectionString))
{
}

is the same as

SqlConnection connection = null;
try
{
    connection = new SqlConnection(connectionString);
}
finally
{
   if(connection != null)
        ((IDisposable)connection).Dispose();
}

Edit: Fixing the cast to Disposable http://msdn.microsoft.com/en-us/library/yh598w02.aspx

I don't think you can do this with CSS. Instead, at regular 'word lengths' along the string, insert an HTML soft-hyphen:

ACTGATCG­AGCTGAAG­CGCAGTGC­GATGCTTC­GATGATGC­TGACGATG

This will display a hyphen at the end of the line, where it wraps, which may or may not be what you want.

Note Safari seems to wrap the long string in a <textarea> anyway, unlike Firefox.

I know this may sound absurd, but I solved a similar issue by creating the database as "phpMyAdmin" not "phpmyadmin" (note case) - perhaps there is something about case-sensitivity under Windows?

Try this

view.requestLayout();

You can also use Pillow like this:

from PIL import Image
image = Image.open("image_path.jpg")
image.show()

Here a full makefile example:

makefile

TARGET = prog

$(TARGET): main.o lib.a
    gcc $^ -o $@

main.o: main.c
    gcc -c $< -o $@

lib.a: lib1.o lib2.o
    ar rcs $@ $^

lib1.o: lib1.c lib1.h
    gcc -c -o $@ $<

lib2.o: lib2.c lib2.h
    gcc -c -o $@ $<

clean:
    rm -f *.o *.a $(TARGET)

explaining the makefile:

• target: prerequisites - the rule head
• $@ - means the target
• $^ - means all prerequisites
• $< - means just the first prerequisite
• ar - a Linux tool to create, modify, and extract from archives see the man pages for further information. The options in this case mean:
  • r - replace files existing inside the archive
  • c - create a archive if not already existent
  • s - create an object-file index into the archive

To conclude: The static library under Linux is nothing more than a archive of object files.

main.c using the lib

#include <stdio.h>

#include "lib.h"

int main ( void )
{
    fun1(10);
    fun2(10);
    return 0;
}

lib.h the libs main header

#ifndef LIB_H_INCLUDED
#define LIB_H_INCLUDED

#include "lib1.h"
#include "lib2.h"

#endif

lib1.c first lib source

#include "lib1.h"

#include <stdio.h>

void fun1 ( int x )
{
    printf("%i\n",x);
}

lib1.h the corresponding header

#ifndef LIB1_H_INCLUDED
#define LIB1_H_INCLUDED

#ifdef __cplusplus
   extern “C” {
#endif

void fun1 ( int x );

#ifdef __cplusplus
   }
#endif

#endif /* LIB1_H_INCLUDED */

lib2.c second lib source

#include "lib2.h"

#include <stdio.h>

void fun2 ( int x )
{
    printf("%i\n",2*x);
}

lib2.h the corresponding header

#ifndef LIB2_H_INCLUDED
#define LIB2_H_INCLUDED

#ifdef __cplusplus
   extern “C” {
#endif

void fun2 ( int x );

#ifdef __cplusplus
   }
#endif

#endif /* LIB2_H_INCLUDED */

You can also use this command to delete the keys:-

Suppose there are many types of keys in your redis like-

1. 'xyz_category_fpc_12'
2. 'xyz_category_fpc_245'
3. 'xyz_category_fpc_321'
4. 'xyz_product_fpc_876'
5. 'xyz_product_fpc_302'
6. 'xyz_product_fpc_01232'

Ex- 'xyz_category_fpc' here xyz is a sitename, and these keys are related to products and categories of a E-Commerce site and generated by FPC.

If you use this command as below-

redis-cli --scan --pattern 'key*' | xargs redis-cli del

OR

redis-cli --scan --pattern 'xyz_category_fpc*' | xargs redis-cli del

It deletes all the keys like 'xyz_category_fpc' (delete 1, 2 and 3 keys). For delete other 4, 5 and 6 number keys use 'xyz_product_fpc' in above command.

If you want to Delete Everything in Redis, then follow these Commands-

With redis-cli:

1. FLUSHDB - Removes data from your connection's CURRENT database.
2. FLUSHALL - Removes data from ALL databases.

For Example:- in your shell:

redis-cli flushall
redis-cli flushdb

I think a very simple way would be to use the Counter class. You can then use the most_common() function of the Counter instance as mentioned here.

For 1-d arrays:

import numpy as np
from collections import Counter

nparr = np.arange(10) 
nparr[2] = 6 
nparr[3] = 6 #6 is now the mode
mode = Counter(nparr).most_common(1)
# mode will be [(6,3)] to give the count of the most occurring value, so ->
print(mode[0][0])    

For multiple dimensional arrays (little difference):

import numpy as np
from collections import Counter

nparr = np.arange(10) 
nparr[2] = 6 
nparr[3] = 6 
nparr = nparr.reshape((10,2,5))     #same thing but we add this to reshape into ndarray
mode = Counter(nparr.flatten()).most_common(1)  # just use .flatten() method

# mode will be [(6,3)] to give the count of the most occurring value, so ->
print(mode[0][0])

This may or may not be an efficient implementation, but it is convenient.

I believe you are now able to use Window.getComputedStyle()

Documentation MDN

var style = window.getComputedStyle(element[, pseudoElt]);

Example to get width of an element:

window.getComputedStyle(document.querySelector('#mainbar')).width