I like to use Pirni (availble for free in Cydia on a jailbroken device), or there's also Pirni Pro now for a few bucks (http://en.wikipedia.org/wiki/Pirni). I've been using the pirni-derv script available for free on Google Code (http://code.google.com/p/pirni-derv/) mixed with Pirni and it's been working very well. I recommend it.

Using the "Replace all" functionality, you can delete a line directly by ending your pattern with:

• If your file have linux (LF) line ending : $\n?
• If your file have windows (CRLF) line ending : $(\r\n)?

For instance, in your case :

.*#RedirectMatch Permanent.*$\n?

I was facing the same problem because some of the images are grey scale images in my data set, so i solve my problem by doing this

    from PIL import Image
    img = Image.open('my_image.jpg').convert('RGB')
    # a line from my program
    positive_images_array = np.array([np.array(Image.open(img).convert('RGB').resize((150, 150), Image.ANTIALIAS)) for img in images_in_yes_directory])

You may get day, month and year and may concatenate them or may use MM-dd-yyyy format as given below.

Date date1 = new Date();
String mmddyyyy1 = new SimpleDateFormat("MM-dd-yyyy").format(date1);
System.out.println("Formatted Date 1: " + mmddyyyy1);



Date date2 = new Date();
Calendar calendar1 = new GregorianCalendar();
calendar1.setTime(date2);
int day1   = calendar1.get(Calendar.DAY_OF_MONTH);
int month1 = calendar1.get(Calendar.MONTH) + 1; // {0 - 11}
int year1  = calendar1.get(Calendar.YEAR);
String mmddyyyy2 = ((month1<10)?"0"+month1:month1) + "-" + ((day1<10)?"0"+day1:day1) + "-" + (year1);
System.out.println("Formatted Date 2: " + mmddyyyy2);



LocalDateTime ldt1 = LocalDateTime.now();  
DateTimeFormatter format1 = DateTimeFormatter.ofPattern("MM-dd-yyyy");  
String mmddyyyy3 = ldt1.format(format1);  
System.out.println("Formatted Date 3: " + mmddyyyy3);  



LocalDateTime ldt2 = LocalDateTime.now();
int day2 = ldt2.getDayOfMonth();
int mont2= ldt2.getMonthValue();
int year2= ldt2.getYear();
String mmddyyyy4 = ((mont2<10)?"0"+mont2:mont2) + "-" + ((day2<10)?"0"+day2:day2) + "-" + (year2);
System.out.println("Formatted Date 4: " + mmddyyyy4);



LocalDateTime ldt3 = LocalDateTime.of(2020, 6, 11, 14, 30); // int year, int month, int dayOfMonth, int hour, int minute
DateTimeFormatter format2 = DateTimeFormatter.ofPattern("MM-dd-yyyy");  
String mmddyyyy5 = ldt3.format(format2);   
System.out.println("Formatted Date 5: " + mmddyyyy5); 



Calendar calendar2 = Calendar.getInstance();
calendar2.setTime(new Date());
int day3  = calendar2.get(Calendar.DAY_OF_MONTH); // OR Calendar.DATE
int month3= calendar2.get(Calendar.MONTH) + 1;
int year3 = calendar2.get(Calendar.YEAR);
String mmddyyyy6 = ((month3<10)?"0"+month3:month3) + "-" + ((day3<10)?"0"+day3:day3) + "-" + (year3);
System.out.println("Formatted Date 6: " + mmddyyyy6);



Date date3 = new Date();
LocalDate ld1 = LocalDate.parse(new SimpleDateFormat("yyyy-MM-dd").format(date3)); // Accepts only yyyy-MM-dd
int day4  = ld1.getDayOfMonth();
int month4= ld1.getMonthValue();
int year4 = ld1.getYear();
String mmddyyyy7 = ((month4<10)?"0"+month4:month4) + "-" + ((day4<10)?"0"+day4:day4) + "-" + (year4);
System.out.println("Formatted Date 7: " + mmddyyyy7);



Date date4 = new Date();
int day5   = LocalDate.parse(new SimpleDateFormat("yyyy-MM-dd").format(date4)).getDayOfMonth();
int month5 = LocalDate.parse(new SimpleDateFormat("yyyy-MM-dd").format(date4)).getMonthValue();
int year5  = LocalDate.parse(new SimpleDateFormat("yyyy-MM-dd").format(date4)).getYear();
String mmddyyyy8 = ((month5<10)?"0"+month5:month5) + "-" + ((day5<10)?"0"+day5:day5) + "-" + (year5);
System.out.println("Formatted Date 8: " + mmddyyyy8);



Date date5 = new Date();
int day6   = Integer.parseInt(new SimpleDateFormat("dd").format(date5));
int month6 = Integer.parseInt(new SimpleDateFormat("MM").format(date5));
int year6  = Integer.parseInt(new SimpleDateFormat("yyyy").format(date5));
String mmddyyyy9 = ((month6<10)?"0"+month6:month6) + "-" + ((day6<10)?"0"+day6:day6) + "-" + (year6);`enter code here`
System.out.println("Formatted Date 9: " + mmddyyyy9);

I found this here:

On windows (win xp), the parent process will not finish until the longtask.py has finished its work. It is not what you want in CGI-script. The problem is not specific to Python, in PHP community the problems are the same.

The solution is to pass DETACHED_PROCESS Process Creation Flag to the underlying CreateProcess function in win API. If you happen to have installed pywin32 you can import the flag from the win32process module, otherwise you should define it yourself:

DETACHED_PROCESS = 0x00000008

pid = subprocess.Popen([sys.executable, "longtask.py"],
                       creationflags=DETACHED_PROCESS).pid

check this..

        string[] strArray = { "ABC", "BCD", "CDE", "DEF", "EFG", "FGH", "GHI" };
        Array.IndexOf(strArray, "C"); // not found, returns -1
        Array.IndexOf(strArray, "CDE"); // found, returns index

You want to assign something like this to onfocus:

if (this.value == this.defaultValue)
    this.value = ''
this.className = ''

and this to onblur:

if (this.value == '')
    this.value = this.defaultValue
this.className = 'placeholder'

(You can use something a bit cleverer, like a framework function, to do the classname switching if you want.)

With some CSS like this:

input.placeholder{
    color: gray;
    font-style: italic;
}

There is a difference in performance.

Simply put HS256 is about 1 order of magnitude faster than RS256 for verification but about 2 orders of magnitude faster than RS256 for issuing (signing).

 640,251  91,464.3 ops/s
  86,123  12,303.3 ops/s (RS256 verify)
   7,046   1,006.5 ops/s (RS256 sign)

Don't get hung up on the actual numbers, just think of them with respect of each other.

[Program.cs]

class Program
{
    static void Main(string[] args)
    {
        foreach (var duration in new[] { 1, 3, 5, 7 })
        {
            var t = TimeSpan.FromSeconds(duration);

            byte[] publicKey, privateKey;

            using (var rsa = new RSACryptoServiceProvider())
            {
                publicKey = rsa.ExportCspBlob(false);
                privateKey = rsa.ExportCspBlob(true);
            }

            byte[] key = new byte[64];

            using (var rng = new RNGCryptoServiceProvider())
            {
                rng.GetBytes(key);
            }

            var s1 = new Stopwatch();
            var n1 = 0;

            using (var hs256 = new HMACSHA256(key))
            {
                while (s1.Elapsed < t)
                {
                    s1.Start();
                    var hash = hs256.ComputeHash(privateKey);
                    s1.Stop();
                    n1++;
                }
            }

            byte[] sign;

            using (var rsa = new RSACryptoServiceProvider())
            {
                rsa.ImportCspBlob(privateKey);

                sign = rsa.SignData(privateKey, "SHA256");
            }

            var s2 = new Stopwatch();
            var n2 = 0;

            using (var rsa = new RSACryptoServiceProvider())
            {
                rsa.ImportCspBlob(publicKey);

                while (s2.Elapsed < t)
                {
                    s2.Start();
                    var success = rsa.VerifyData(privateKey, "SHA256", sign);
                    s2.Stop();
                    n2++;
                }
            }

            var s3 = new Stopwatch();
            var n3 = 0;

            using (var rsa = new RSACryptoServiceProvider())
            {
                rsa.ImportCspBlob(privateKey);

                while (s3.Elapsed < t)
                {
                    s3.Start();
                    rsa.SignData(privateKey, "SHA256");
                    s3.Stop();
                    n3++;
                }
            }

            Console.WriteLine($"{s1.Elapsed.TotalSeconds:0} {n1,7:N0} {n1 / s1.Elapsed.TotalSeconds,9:N1} ops/s");
            Console.WriteLine($"{s2.Elapsed.TotalSeconds:0} {n2,7:N0} {n2 / s2.Elapsed.TotalSeconds,9:N1} ops/s");
            Console.WriteLine($"{s3.Elapsed.TotalSeconds:0} {n3,7:N0} {n3 / s3.Elapsed.TotalSeconds,9:N1} ops/s");

            Console.WriteLine($"RS256 is {(n1 / s1.Elapsed.TotalSeconds) / (n2 / s2.Elapsed.TotalSeconds),9:N1}x slower (verify)");
            Console.WriteLine($"RS256 is {(n1 / s1.Elapsed.TotalSeconds) / (n3 / s3.Elapsed.TotalSeconds),9:N1}x slower (issue)");

            // RS256 is about 7.5x slower, but it can still do over 10K ops per sec.
        }
    }
}

It's pandas label-based selection, as explained here: https://pandas.pydata.org/pandas-docs/stable/indexing.html#selection-by-label

The boolean array is basically a selection method using a mask.

I know it's late to answer but i found this article here . Which explains the whole process very well and provides you a well structured code.

Locale Helper class:

import android.annotation.TargetApi;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;
import android.preference.PreferenceManager;

import java.util.Locale;

/**
 * This class is used to change your application locale and persist this change for the next time
 * that your app is going to be used.
 * <p/>
 * You can also change the locale of your application on the fly by using the setLocale method.
 * <p/>
 * Created by gunhansancar on 07/10/15.
 */
public class LocaleHelper {

    private static final String SELECTED_LANGUAGE = "Locale.Helper.Selected.Language";

    public static Context onAttach(Context context) {
        String lang = getPersistedData(context, Locale.getDefault().getLanguage());
        return setLocale(context, lang);
    }

    public static Context onAttach(Context context, String defaultLanguage) {
        String lang = getPersistedData(context, defaultLanguage);
        return setLocale(context, lang);
    }

    public static String getLanguage(Context context) {
        return getPersistedData(context, Locale.getDefault().getLanguage());
    }

    public static Context setLocale(Context context, String language) {
        persist(context, language);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            return updateResources(context, language);
        }

        return updateResourcesLegacy(context, language);
    }

    private static String getPersistedData(Context context, String defaultLanguage) {
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
        return preferences.getString(SELECTED_LANGUAGE, defaultLanguage);
    }

    private static void persist(Context context, String language) {
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
        SharedPreferences.Editor editor = preferences.edit();

        editor.putString(SELECTED_LANGUAGE, language);
        editor.apply();
    }

    @TargetApi(Build.VERSION_CODES.N)
    private static Context updateResources(Context context, String language) {
        Locale locale = new Locale(language);
        Locale.setDefault(locale);

        Configuration configuration = context.getResources().getConfiguration();
        configuration.setLocale(locale);
        configuration.setLayoutDirection(locale);

        return context.createConfigurationContext(configuration);
    }

    @SuppressWarnings("deprecation")
    private static Context updateResourcesLegacy(Context context, String language) {
        Locale locale = new Locale(language);
        Locale.setDefault(locale);

        Resources resources = context.getResources();

        Configuration configuration = resources.getConfiguration();
        configuration.locale = locale;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            configuration.setLayoutDirection(locale);
        }

        resources.updateConfiguration(configuration, resources.getDisplayMetrics());

        return context;
    }
}

You need to override attachBaseContext and call LocaleHelper.onAttach() to initialize the locale settings in your application.

import android.app.Application;
import android.content.Context;

import com.gunhansancar.changelanguageexample.helper.LocaleHelper;

public class MainApplication extends Application {
    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(LocaleHelper.onAttach(base, "en"));
    }
}

All you have to do is to add

LocaleHelper.onCreate(this, "en");

wherever you want to change the locale.

I used the code below and it worked for me.

String email="";
    SqlDataReader reader=cmd.ExecuteReader();
    if(reader.Read()){
        email=reader["Email"].ToString();
    }

String To=email;

Syntax:

controlName.CssClass="CSS Class Name";

Example:

txtBank.CssClass = "csError";

simply call req.url. that should do the work. you'll get something like /something?bla=foo

form: NgForm;

form.reset()

This didn't work for me. It cleared the values but the controls raised an error.

But what worked for me was creating a hidden reset button and clicking the button when we want to clear the form.

<button class="d-none" type="reset" #btnReset>Reset</button>

And on the component, define the ViewChild and reference it in code.

@ViewChild('btnReset') btnReset: ElementRef<HTMLElement>;

Use this to reset the form.

this.btnReset.nativeElement.click();

Notice that the class d-none sets display: none; on the button.

list.Where(m => m.application == "applicationName" && 
           m.users.Any(u => u.surname=="surname"));

if you want to filter users as TimSchmelter commented, you can use

list.Where(m => m.application == "applicationName")
    .Select(m => new Model
    {
        application = m.application,
        users = m.users.Where(u => u.surname=="surname").ToList()
    });

There might be neater methods, but the following could be one approach:

SELECT    t.fk,
          (
             SELECT t1.Field1 
             FROM   `table` t1 
             WHERE  t1.fk = t.fk AND t1.Field1 IS NOT NULL
             LIMIT  1
          ) Field1,
          (
             SELECT t2.Field2
             FROM   `table` t2 
             WHERE  t2.fk = t.fk AND t2.Field2 IS NOT NULL
             LIMIT  1
          ) Field2
FROM      `table` t
WHERE     t.fk = 3
GROUP BY  t.fk;

Test Case:

CREATE TABLE `table` (fk int, Field1 varchar(10), Field2 varchar(10));

INSERT INTO `table` VALUES (3, 'ABC', NULL);
INSERT INTO `table` VALUES (3, NULL, 'DEF');
INSERT INTO `table` VALUES (4, 'GHI', NULL);
INSERT INTO `table` VALUES (4, NULL, 'JKL');
INSERT INTO `table` VALUES (5, NULL, 'MNO');

Result:

+------+--------+--------+
| fk   | Field1 | Field2 |
+------+--------+--------+
|    3 | ABC    | DEF    |
+------+--------+--------+
1 row in set (0.01 sec)

Running the same query without the WHERE t.fk = 3 clause, it would return the following result-set:

+------+--------+--------+
| fk   | Field1 | Field2 |
+------+--------+--------+
|    3 | ABC    | DEF    |
|    4 | GHI    | JKL    |
|    5 | NULL   | MNO    |
+------+--------+--------+
3 rows in set (0.01 sec)

easiest way , add $("[data-toggle=tooltip]").tooltip(); to the concerned controller.

That will work but you will have to be careful not to overload your server because it will create a new process every time you call this function which will run in background. If only one concurrent call at the same time then this workaround will do the job.

If not then I would advice to run a message queue like for instance beanstalkd/gearman/amazon sqs.

Well looks like if you copy paste the repository link you end up with this issue.

What I have noticed it this

1. If you use the copy button on GitHub and then paste the URL in GitBash(Windows) it throws this error
2. If you select the link and then paste then it works, or you could also just type the URL that works as well.

So I think it might be an issue with the GitHub copy button

You simply have to use the filter filter (see the documentation) :

<div id="totalPos">{{(tweets | filter:{polarity:'Positive'}).length}}</div>
<div id="totalNeut">{{(tweets | filter:{polarity:'Neutral'}).length}}</div>
<div id="totalNeg">{{(tweets | filter:{polarity:'Negative'}).length}}</div>

Fiddle

@Aqib Mumtaz - I got it working by following the instructions in Parris' note above entitled "Adding libxml2 in Xcode 4.3 / 5 / 6". The step in using a Framework Search Path does not work and the compiler complains. Big kudos to that fella anyway!

I am using Xcode 6.2b3

Regardless of the version of Xcode you are using, it is buggy. Don't always assume that compile errors are real. There are many times when it does not follow header search paths and includes clearly listed are not found. Worse, the errors that result tend to point you in different directions so you waste a lot of time dinking around with distractions. With that said...

Recommend baby steps by starting with this exactly...:

1. create a single window Mac OS X Cocoa project called "Bench Test"
2. add XpathQuery into your project source directory directly in the Finder
3. click on the tiny folder icon under the project window's red close button
4. drag XpathQuery (folder if you contained it) into the project assets on the left of the project window's display
5. drag /Applications/Xcode/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/lib/libxml2.2.dylib into your project assets, at the bottom. This will add it into your "Build Phases" -> "Link Binary With Libraries" the easy way
6. click on the "Bench Test" project icon in the project assets column, top of the left
7. search for "Other Linker Flags" under "Build Settings"
8. add "-lxml2" (sans "") to "Other Linker Flags" under the "Bench Test" project icon column
9. search for "header search" under "Build Settings"
10. add "$(SDKROOT)/usr/include/libxml2" (sans "") to "Header Search Paths" under the "Bench Test" project icon column
11. add "$(SDKROOT)/usr/include/libxml2" (sans "") to "User Header Search Paths" under the "Bench Test" project icon column

Notes:

• Mine would not work until I added that search path to both "Header Search Paths" and "User Header Search Paths".
• To get to the libxml2.2.dylib in the finder, you will need to right click your Xcode icon and select "Show Package Contacts" (editorial: what a hack.. cramming all that garbage into the app)
• Be prepared to change the linked libxml2.2.dylib. The one inside Xcode is intentionally used to ensure that Xcode gets something it knows about and in theory was tested. You may want to use the dylib in the system later (read up in this thread)
• As I am using Xcode 6.2b3, I may have a newer libxml2.2.dylib. Yours could be named slightly different. Just search the folder for something that starts with "libxml" and ends with ".dylib" and that should be it. There may also be an alias like "libxml2.dylib". Don't use that right away as resolving an alias adds another variable into the Xcode "what could have bugs" equation.
• For sanity sake, I make aliases of the external libraries, rename them to indicate which one they are, and keep them at the same level as the project file in the Finder. If they change location, change name, etc, the alias will have in it's Get Info, the original file's full path for later detective work to get the project compiling and linking again. (symlinks break too easy and are not natural to the Mac)
• Last thing, and very important, see http://www.cocoawithlove.com/2008/10/using-libxml2-for-parsing-and-xpath.html where you can download XpathQuery and get some more goodness.

hope this helps.

If you happen to be developing something for Veterans, oh say an iPhone / iPad or Mac app, and are working against something called "MDWS" or "VIA" which are SOAP based interfaces to the medical record system... please contact me

It don't create normally; you need to add it by yourself.

After adding Global.asax by

• Right clicking your website -> Add New Item -> Global Application Class -> Add

You need to add a class

• Right clicking App_Code -> Add New Item -> Class -> name it Global.cs -> Add

Inherit the newly generated by System.Web.HttpApplication and copy all the method created Global.asax to Global.cs and also add an inherit attribute to the Global.asax file.

Your Global.asax will look like this: -

<%@ Application Language="C#" Inherits="Global" %>

Your Global.cs in App_Code will look like this: -

public class Global : System.Web.HttpApplication
{
    public Global()
    {
        //
        // TODO: Add constructor logic here
        //
    }

    void Application_Start(object sender, EventArgs e)
    {
        // Code that runs on application startup

    }
    /// Many other events like begin request...e.t.c, e.t.c
}

Using executeUpdate() on the Query API is faster because it bypasses the persistent context .However , by-passing persistent context would cause the state of instance in the memory and the actual values of that record in the DB are not synchronized.

Consider the following example :

 Employee employee= (Employee)entityManager.find(Employee.class , 1);
 entityManager
     .createQuery("update Employee set name = \'xxxx\' where id=1")
     .executeUpdate();

After flushing, the name in the DB is updated to the new value but the employee instance in the memory still keeps the original value .You have to call entityManager.refresh(employee) to reload the updated name from the DB to the employee instance.It sounds strange if your codes still have to manipulate the employee instance after flushing but you forget to refresh() the employee instance as the employee instance still contains the original values.

Normally , executeUpdate() is used in the bulk update process as it is faster due to bypassing the persistent context

The right way to update an entity is that you just set the properties you want to updated through the setters and let the JPA to generate the update SQL for you during flushing instead of writing it manually.

   Employee employee= (Employee)entityManager.find(Employee.class ,1);
   employee.setName("Updated Name");

also try to increase gradle version in your project's build.gradle. It helped me

I have done following code to get the IP of MAC known device. This can be modified accordingly to obtain all IPs with some string manipulation. Hope this will help you.

#running windows cmd line  statement and put output into a string
cmd_out = os.popen("arp -a").read()
line_arr = cmd_out.split('\n')
line_count = len(line_arr)


#search in all lines for ip
for i in range(0, line_count):
    y = line_arr[i]
    z = y.find(mac_address)

    #if mac address is found then get the ip using regex matching
    if z > 0:
        ip_out= re.search('[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+', y, re.M | re.I)

I wrote a wrapper, that will cache text surfaces, only re-render when dirty. googlecode/ninmonkey/nin.text/demo/

The above answers work for many cases but they miss some. Consider the following:

fl = sum([0.1]*10)  # this is 0.9999999999999999, but we want to say it IS an int

Using this as a benchmark, some of the other suggestions don't get the behavior we might want:

fl.is_integer() # False

fl % 1 == 0     # False

Instead try:

def isclose(a, b, rel_tol=1e-09, abs_tol=0.0):
    return abs(a-b) <= max(rel_tol * max(abs(a), abs(b)), abs_tol)

def is_integer(fl):
    return isclose(fl, round(fl))

now we get:

is_integer(fl)   # True

isclose comes with Python 3.5+, and for other Python's you can use this mostly equivalent definition (as mentioned in the corresponding PEP)

I prefer dotmemory from Jetbrains

Use a BackgroundWorker. It will allow you to get callbacks on completion and allow you to track progress. You can set the Result value on the event arguments to the resulting value.

    public void UseBackgroundWorker()
    {
        var worker = new BackgroundWorker();
        worker.DoWork += DoWork;
        worker.RunWorkerCompleted += WorkDone;
        worker.RunWorkerAsync("input");
    }

    public void DoWork(object sender, DoWorkEventArgs e)
    {
        e.Result = e.Argument.Equals("input");
        Thread.Sleep(1000);
    }

    public void WorkDone(object sender, RunWorkerCompletedEventArgs e)
    {
        var result = (bool) e.Result;
    }

The -i flag specifies the private key (.pem file) to use. If you don't specify that flag (as in your first command) it will use your default ssh key (usually under ~/.ssh/).

So in your first command, you are actually asking scp to upload the .pem file itself using your default ssh key. I don't think that is what you want.

Try instead with:

scp -r -i /Applications/XAMPP/htdocs/keypairfile.pem uploads/* ec2-user@publicdns:/var/www/html/uploads

I tried 228px radius for 1024x1024 and it worked :)

I say you setup the JAVA_HOME environment variable like Pascal is saying: In Cygwin if you use bash as your shell should be:

export JAVA_HOME=/cygdrive/c/pathtothejdk

It never harms to also prepend the java bin directory path to the PATH environment variable with:

export PATH=${JAVA_HOME}/bin:${PATH}

Also add maven-enforce-plugin to make sure the right JDK is used. This is a good practice for your pom.

<build>
 <plugins>
   <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-enforcer-plugin</artifactId>
      <executions>
        <execution>
          <id>enforce-versions</id>
          <goals>
            <goal>enforce</goal>
          </goals>
          <configuration>
            <rules>
              <requireJavaVersion>
                <version>1.6</version>
              </requireJavaVersion>
            </rules>
          </configuration>
        </execution>
      </executions>
    </plugin>
  </plugins>
</build>

Please, see Maven Enforcer plugin – Usage.

Just a warning to the correct answers above:

Using the -f / --force Method provides a risk to lose the file if you mix up source and target:

mbucher@server2:~/test$ ls -la
total 11448
drwxr-xr-x  2 mbucher www-data    4096 May 25 15:27 .
drwxr-xr-x 18 mbucher www-data    4096 May 25 15:13 ..
-rw-r--r--  1 mbucher www-data 4109466 May 25 15:26 data.tar.gz
-rw-r--r--  1 mbucher www-data 7582480 May 25 15:27 otherdata.tar.gz
lrwxrwxrwx  1 mbucher www-data      11 May 25 15:26 thesymlink -> data.tar.gz
mbucher@server2:~/test$ 
mbucher@server2:~/test$ ln -s -f thesymlink otherdata.tar.gz 
mbucher@server2:~/test$ 
mbucher@server2:~/test$ ls -la
total 4028
drwxr-xr-x  2 mbucher www-data    4096 May 25 15:28 .
drwxr-xr-x 18 mbucher www-data    4096 May 25 15:13 ..
-rw-r--r--  1 mbucher www-data 4109466 May 25 15:26 data.tar.gz
lrwxrwxrwx  1 mbucher www-data      10 May 25 15:28 otherdata.tar.gz -> thesymlink
lrwxrwxrwx  1 mbucher www-data      11 May 25 15:26 thesymlink -> data.tar.gz

Of course this is intended, but usually mistakes occur. So, deleting and rebuilding the symlink is a bit more work but also a bit saver:

mbucher@server2:~/test$ rm thesymlink && ln -s thesymlink otherdata.tar.gz 
ln: creating symbolic link `otherdata.tar.gz': File exists

which at least keeps my file.

For simple cases like this, TimeUnit should be used. TimeUnit usage is a bit more explicit about what is being represented and is also much easier to read and write when compared to doing all of the arithmetic calculations explicitly. For example, to calculate the number days from milliseconds, the following statement would work:

    long days = TimeUnit.MILLISECONDS.toDays(milliseconds);

For cases more advanced, where more finely grained durations need to be represented in the context of working with time, an all encompassing and modern date/time API should be used. For JDK8+, java.time is now included (here are the tutorials and javadocs). For earlier versions of Java joda-time is a solid alternative.

I think all explanations above are a bit too technical for the people who are new to Object Oriented Programming (OOP). Years ago, it took me a while to wrap my head around this (as Jr Java Developer) and I really did no understand why we use a parent class or an interface to hide the actual class we are actually calling under the covers.

1. The immediate reason why is to hide complexity, so that the caller does not need to change often (be hacked and jacked in laymen's terms). This makes a lot of sense, especially if you goals is to avoid creating bugs. And the more you modify code, the more likely it is that you will have some of them creep up on you. On the other hand, if you just extend code, it is way less likely that you will have bugs because you concentrate on one thing at a time and your old code does not change or changes just a bit. Imagine that you have simple application that allows the employees in the medical profession to create profiles. For simplicity, let's assume that we have only GeneralPractitioners, Surgeons, and Nurses (in reality there are many more specific professions, of course). For each profession, you want to store some general information and some specific to that professional alone. For example, a Surgeon may have general fields like firstName, lastName, yearsOfExperience as general fields but also specific fields, e.g. specializations stored in an list instance variable, like List with contents simiar to "Bone Surgery", "Eye Surgery", etc. A Nurse would not have any of that but may have list procedures they are familiar with, GeneralPractioners would have their own specifics. As a result, how you save a profile of a specifics. However, you don't want your ProfileManager class to know about these differences, as they will inevitably change and increase over time as your application expands its functionality to cover more medical professions, e.g. Physio Therapist, Cardiologist, Oncologist, etc. All you want your ProfileManger to do is just say save(), no matter whose profile it is saving. Thus, it is common practice to hide this behind and Interface, and Abstract Class, or a Parent Class (if you plan to allow creating a general medical employee). In this case, let's choose a Parent class and call it MedicalEmployee. Under the covers, it can reference any of the above specific classes that extend it. When the ProfileManager calls myMedicalEmployee.save() the save() method will be polymorphically (many-structurally) be resolved to the correct class type that was used to create the profile originally, for example Nurse and call the save() method in that class.

2. In many cases, you don't really know what implementation you will need at runtime. From the example above, you have no idea if a GeneralPractitioner, a Surgeon, or a Nurse would create a profile. Yet, you know that you need to save that profile once completed, no matter what. MedicalEmployee.profile() does exactly that. It is replicated (overridden) by each specific type of MedicalEmployee - GeneralPractitioner, Surgeon, Nurse,

3. The result of (1) and (2) above is that you now can add new medical professions, implement save() in each new class, thereby overriding the save() method in MedicalEmployee, and you don't have to modify ProfileManager at all.

I needed to move data from a sql server compact database to sqlite, so using sql server 2008 you can right click on the table and select 'Script Table To' and then 'Data to Inserts'. Copy the insert statements remove the 'GO' statements and it executed successfully when applied to the sqlite database using the 'DB Browser for Sqlite' app.

In my case below code

    <?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:top="10dp" android:bottom="-10dp"
        >

        <shape android:shape="rectangle">
            <solid android:color="@color/maincolor" />

            <corners
                android:topLeftRadius="10dp"
                android:topRightRadius="10dp"
                android:bottomLeftRadius="0dp"
                android:bottomRightRadius="0dp"
            />
        </shape>

    </item>
    </layer-list>

Curly braces are always needed for accessing array elements and carrying out brace expansion.

It's good to be not over-cautious and use {} for shell variable expansion even when there is no scope for ambiguity.

For example:

dir=log
prog=foo
path=/var/${dir}/${prog}      # excessive use of {}, not needed since / can't be a part of a shell variable name
logfile=${path}/${prog}.log   # same as above, . can't be a part of a shell variable name
path_copy=${path}             # {} is totally unnecessary
archive=${logfile}_arch       # {} is needed since _ can be a part of shell variable name

So, it is better to write the three lines as:

path=/var/$dir/$prog
logfile=$path/$prog.log
path_copy=$path

which is definitely more readable.

Since a variable name can't start with a digit, shell doesn't need {} around numbered variables (like $1, $2 etc.) unless such expansion is followed by a digit. That's too subtle and it does make to explicitly use {} in such contexts:

set app      # set $1 to app
fruit=$1le   # sets fruit to apple, but confusing
fruit=${1}le # sets fruit to apple, makes the intention clear

See:

• Allowed characters in Linux environment variable names

For Future Readers

I love to work with Volley. To save development time i tried to write small handy library Gloxey Netwok Manager to setup Volley with my project. It includes JSON parser and different other methods that helps to check network availability.

Use ConnectionManager.class in which different methods for Volley String and Volley JSON request are available. You can make requests of GET, PUT, POST, DELETE with or without header. You can read full documentation here.

Just put this line in your gradle file.

  dependencies { 

       compile 'io.gloxey.gnm:network-manager:1.0.1'
   }

Volley StringRequest

Method GET (without header)

    ConnectionManager.volleyStringRequest(context, isDialog, progressDialogView, requestURL, volleyResponseInterface);

How to use?

     Configuration                Description

     Context                      Context 
     isDialog                     If true dialog will appear, otherwise not.
     progressView                 For custom progress view supply your progress view id and make isDialog true. otherwise pass null. 
     requestURL                   Pass your API URL.  
     volleyResponseInterface      Callback for response.  

Example

    ConnectionManager.volleyStringRequest(this, false, null, "url", new VolleyResponse() {
    @Override
    public void onResponse(String _response) {

        /**
         * Handle Response
         */
    }

    @Override
     public void onErrorResponse(VolleyError error) {

        /**
         * handle Volley Error
         */
    }

    @Override
    public void isNetwork(boolean connected) {

        /**
         * True if internet is connected otherwise false
         */
    }
});

Volley StringRequest

Method POST/PUT/DELETE (without header)

    ConnectionManager.volleyStringRequest(context, isDialog, progressDialogView, requestURL, requestMethod, params, volleyResponseInterface);

Example

Use Method : Request.Method.POST
             Request.Method.PUT
             Request.Method.DELETE

Your params : 

HashMap<String, String> params = new HashMap<>();
params.put("param 1", "value");
params.put("param 2", "value");

ConnectionManager.volleyStringRequest(this, true, null, "url", Request.Method.POST, params, new VolleyResponse() {
    @Override
    public void onResponse(String _response) {

        /**
         * Handle Response
         */
    }

    @Override
    public void onErrorResponse(VolleyError error) {

        /**
         * handle Volley Error
         */
    }

    @Override
    public void isNetwork(boolean connected) {

        /**
         * True if internet is connected otherwise false
         */
    }
});

Bonus

Gloxey JSON Parser

Feel free to use gloxey json parser to parse your api response.

  YourModel yourModel = GloxeyJsonParser.getInstance().parse(stringResponse, YourModel.class);

Example

ConnectionManager.volleyStringRequest(this, false, null, "url", new VolleyResponse() {
    @Override
    public void onResponse(String _response) {

        /**
         * Handle Response
         */

         try {

          YourModel yourModel = GloxeyJsonParser.getInstance().parse(_response, YourModel.class);

            } catch (Exception e) {
                e.printStackTrace();
            }

    }

    @Override
     public void onErrorResponse(VolleyError error) {

        /**
         * handle Volley Error
         */
         if (error instanceof TimeoutError || error instanceof NoConnectionError) {

                showSnackBar(parentLayout, getString(R.string.internet_not_found), getString(R.string.retry), new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {

                     //handle retry button

                    }
                });

            } else if (error instanceof AuthFailureError) {
            } else if (error instanceof ServerError) {
            } else if (error instanceof NetworkError) {
            } else if (error instanceof ParseError) {
            }

    }

    @Override
    public void isNetwork(boolean connected) {

        /**
         * True if internet is connected otherwise false
         */
          if (!connected) {
                showSnackBar(parentLayout, getString(R.string.internet_not_found), getString(R.string.retry), new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        //Handle retry button
                    }
                });
    }
});


     public void showSnackBar(View view, String message) {
            Snackbar.make(view, message, Snackbar.LENGTH_LONG).show();
     }

     public void showSnackBar(View view, String message, String actionText, View.OnClickListener onClickListener) {
            Snackbar.make(view, message, Snackbar.LENGTH_LONG).setAction(actionText, onClickListener).show();
     }

There's also the DateTime class which implements a function for comparison operators.

// $now = new DateTime();
$dtA = new DateTime('05/14/2010 3:00PM');
$dtB = new DateTime('05/14/2010 4:00PM');

if ( $dtA > $dtB ) {
  echo 'dtA > dtB';
}
else {
  echo 'dtA <= dtB';
}

{% for days in days_list %}
    <h2># Day {{ forloop.counter }} - From {{ days.from_location }} to {{ days.to_location }}</h2>
{% endfor %}

or if you want to start from 0

{% for days in days_list %}
        <h2># Day {{ forloop.counter0 }} - From {{ days.from_location }} to {{ days.to_location }}</h2>
    {% endfor %}

This method is only one class and doesn't require importing other libraries or reusing code.

Personally I use this script that I made a while ago. Located here but for those who don't want to click on that link you can view it below. It lets the developer use the static method HTTP::GET($url, $options) to use the get method in curl while being able to pass through custom curl options. You can also use HTTP::POST($url, $options) but I hardly use that method.

/**
  *  echo HTTP::POST('http://accounts.kbcomp.co',
  *      array(
  *            'user_name'=>'[email protected]',
  *            'user_password'=>'demo1234'
  *      )
  *  );
  *  OR
  *  echo HTTP::GET('http://api.austinkregel.com/colors/E64B3B/1');
  *                  
  */

class HTTP{
   public static function GET($url,Array $options=array()){
    $ch = curl_init();
    if(count($options>0)){
       curl_setopt_array($ch, $options);
       curl_setopt($ch, CURLOPT_URL, $url);
       $json = curl_exec($ch);
       curl_close($ch);
       return $json;
     }
   }
   public static function POST($url, $postfields, $options = null){
       $ch = curl_init();
       $options = array(
          CURLOPT_URL=>$url,
          CURLOPT_RETURNTRANSFER => TRUE,
          CURLOPT_POSTFIELDS => $postfields,
          CURLOPT_HEADER => true
          //CURLOPT_HTTPHEADER, array('Content-Type:application/json')
          ); 
       if(count($options>0)){
           curl_setopt_array($ch, $options);
       }
       $json = curl_exec($ch);
       curl_close($ch);
       return $json;
   }
}

Olivers answers is very clear, but if you are looking for a solution in angular js, I have written a nice module called Angular-jsClass which does this ease, having objects defined in litaral notation is always bad when you are aiming to a big project but saying that developers face problem which exactly BMiner said, how to serialize a json to prototype or constructor notation objects

var jone = new Student();
jone.populate(jsonString); // populate Student class with Json string
console.log(jone.getName()); // Student Object is ready to use

https://github.com/imalhasaranga/Angular-JSClass

In my case I missed the compile tag in the .csproj file

<Compile Include="Global.asax.cs">
  <DependentUpon>Global.asax</DependentUpon>
  <CopyToOutputDirectory>Always</CopyToOutputDirectory>
</Compile>

The code below is the combination of Chintan Panchal's answer along with Antoine Leclair's comment (placing the code in the windows resize event). (I didn't need the debounce mentioned by Antoine Leclair, however that could be a best practice.)

  $(window).resize( function() {
      $("#example").DataTable().columns.adjust().draw();
  });

This was the approach that worked in my case.

You're comparing apples to oranges here:

• webHttpBinding is the REST-style binding, where you basically just hit a URL and get back a truckload of XML or JSON from the web service

• basicHttpBinding and wsHttpBinding are two SOAP-based bindings which is quite different from REST. SOAP has the advantage of having WSDL and XSD to describe the service, its methods, and the data being passed around in great detail (REST doesn't have anything like that - yet). On the other hand, you can't just browse to a wsHttpBinding endpoint with your browser and look at XML - you have to use a SOAP client, e.g. the WcfTestClient or your own app.

So your first decision must be: REST vs. SOAP (or you can expose both types of endpoints from your service - that's possible, too).

Then, between basicHttpBinding and wsHttpBinding, there differences are as follows:

• basicHttpBinding is the very basic binding - SOAP 1.1, not much in terms of security, not much else in terms of features - but compatible to just about any SOAP client out there --> great for interoperability, weak on features and security

• wsHttpBinding is the full-blown binding, which supports a ton of WS-* features and standards - it has lots more security features, you can use sessionful connections, you can use reliable messaging, you can use transactional control - just a lot more stuff, but wsHttpBinding is also a lot *heavier" and adds a lot of overhead to your messages as they travel across the network

For an in-depth comparison (including a table and code examples) between the two check out this codeproject article: Differences between BasicHttpBinding and WsHttpBinding

In my case it was a simple type

$_SESSION['role' == 'ge']

I was missing the correct closing bracket

$_SESSION['role'] == 'ge'

You might want to try install bs4 with

pip install --ignore-installed BeautifulSoup4

if the methods above didn't work for you.

If someone finds this question like I did, then I'll post my solution which works on Django 2.0:

This tag assigns some settings.py variable value to template's variable:

Usage: {% get_settings_value template_var "SETTINGS_VAR" %}

app/templatetags/my_custom_tags.py:

from django import template
from django.conf import settings

register = template.Library()

class AssignNode(template.Node):
    def __init__(self, name, value):
        self.name = name
        self.value = value

    def render(self, context):
        context[self.name] = getattr(settings, self.value.resolve(context, True), "")
        return ''

@register.tag('get_settings_value')
def do_assign(parser, token):
    bits = token.split_contents()
    if len(bits) != 3:
        raise template.TemplateSyntaxError("'%s' tag takes two arguments" % bits[0])
    value = parser.compile_filter(bits[2])
    return AssignNode(bits[1], value)

Your template:

{% load my_custom_tags %}

# Set local template variable:
{% get_settings_value settings_debug "DEBUG" %}

# Output settings_debug variable:
{{ settings_debug }}

# Use variable in if statement:
{% if settings_debug %}
... do something ...
{% else %}
... do other stuff ...
{% endif %}

See Django's documentation how to create custom template tags here: https://docs.djangoproject.com/en/2.0/howto/custom-template-tags/

It denotes an rvalue reference. Rvalue references will only bind to temporary objects, unless explicitly generated otherwise. They are used to make objects much more efficient under certain circumstances, and to provide a facility known as perfect forwarding, which greatly simplifies template code.

In C++03, you can't distinguish between a copy of a non-mutable lvalue and an rvalue.

std::string s;
std::string another(s);           // calls std::string(const std::string&);
std::string more(std::string(s)); // calls std::string(const std::string&);

In C++0x, this is not the case.

std::string s;
std::string another(s);           // calls std::string(const std::string&);
std::string more(std::string(s)); // calls std::string(std::string&&);

Consider the implementation behind these constructors. In the first case, the string has to perform a copy to retain value semantics, which involves a new heap allocation. However, in the second case, we know in advance that the object which was passed in to our constructor is immediately due for destruction, and it doesn't have to remain untouched. We can effectively just swap the internal pointers and not perform any copying at all in this scenario, which is substantially more efficient. Move semantics benefit any class which has expensive or prohibited copying of internally referenced resources. Consider the case of std::unique_ptr- now that our class can distinguish between temporaries and non-temporaries, we can make the move semantics work correctly so that the unique_ptr cannot be copied but can be moved, which means that std::unique_ptr can be legally stored in Standard containers, sorted, etc, whereas C++03's std::auto_ptr cannot.

Now we consider the other use of rvalue references- perfect forwarding. Consider the question of binding a reference to a reference.

std::string s;
std::string& ref = s;
(std::string&)& anotherref = ref; // usually expressed via template

Can't recall what C++03 says about this, but in C++0x, the resultant type when dealing with rvalue references is critical. An rvalue reference to a type T, where T is a reference type, becomes a reference of type T.

(std::string&)&& ref // ref is std::string&
(const std::string&)&& ref // ref is const std::string&
(std::string&&)&& ref // ref is std::string&&
(const std::string&&)&& ref // ref is const std::string&&

Consider the simplest template function- min and max. In C++03 you have to overload for all four combinations of const and non-const manually. In C++0x it's just one overload. Combined with variadic templates, this enables perfect forwarding.

template<typename A, typename B> auto min(A&& aref, B&& bref) {
    // for example, if you pass a const std::string& as first argument,
    // then A becomes const std::string& and by extension, aref becomes
    // const std::string&, completely maintaining it's type information.
    if (std::forward<A>(aref) < std::forward<B>(bref))
        return std::forward<A>(aref);
    else
        return std::forward<B>(bref);
}

I left off the return type deduction, because I can't recall how it's done offhand, but that min can accept any combination of lvalues, rvalues, const lvalues.

Python has importing and namespacing, which are good. In Python you can import into the current namespace, like:

>>> from test import disp
>>> disp('World!')

Or with a namespace:

>>> import test
>>> test.disp('World!')

npm config set proxy <http://...>:<port_number>
npm config set registry http://registry.npmjs.org/

This solved my problem.

To access the raw RGB values of an UIImage in Swift 5 use the underlying CGImage and its dataProvider:

import UIKit

let image = UIImage(named: "example.png")!

guard let cgImage = image.cgImage,
    let data = cgImage.dataProvider?.data,
    let bytes = CFDataGetBytePtr(data) else {
    fatalError("Couldn't access image data")
}
assert(cgImage.colorSpace?.model == .rgb)

let bytesPerPixel = cgImage.bitsPerPixel / cgImage.bitsPerComponent
for y in 0 ..< cgImage.height {
    for x in 0 ..< cgImage.width {
        let offset = (y * cgImage.bytesPerRow) + (x * bytesPerPixel)
        let components = (r: bytes[offset], g: bytes[offset + 1], b: bytes[offset + 2])
        print("[x:\(x), y:\(y)] \(components)")
    }
    print("---")
}

https://www.ralfebert.de/ios/examples/image-processing/uiimage-raw-pixels/

In plain javascript:

element.addEventListener('mousedown', function(e){ e.preventDefault(); }, false);

Or with jQuery:

jQuery(element).mousedown(function(e){ e.preventDefault(); });

Most of these answers overcomplicate this. Why not try it this way?

$("textarea").keypress(function(event) {
        if (event.keyCode == 13 && !event.shiftKey) {
         submitForm(); //Submit your form here
         return false;
         }
});

No messing around with caret position or shoving line breaks into JS. Basically, the function will not run if the shift key is being pressed, therefore allowing the enter/return key to perform its normal function.

>>> k = [[1, 2], [4], [5, 6, 2], [1, 2], [3], [4]]
>>> import itertools
>>> k.sort()
>>> list(k for k,_ in itertools.groupby(k))
[[1, 2], [3], [4], [5, 6, 2]]

itertools often offers the fastest and most powerful solutions to this kind of problems, and is well worth getting intimately familiar with!-)

Edit: as I mention in a comment, normal optimization efforts are focused on large inputs (the big-O approach) because it's so much easier that it offers good returns on efforts. But sometimes (essentially for "tragically crucial bottlenecks" in deep inner loops of code that's pushing the boundaries of performance limits) one may need to go into much more detail, providing probability distributions, deciding which performance measures to optimize (maybe the upper bound or the 90th centile is more important than an average or median, depending on one's apps), performing possibly-heuristic checks at the start to pick different algorithms depending on input data characteristics, and so forth.

Careful measurements of "point" performance (code A vs code B for a specific input) are a part of this extremely costly process, and standard library module timeit helps here. However, it's easier to use it at a shell prompt. For example, here's a short module to showcase the general approach for this problem, save it as nodup.py:

import itertools

k = [[1, 2], [4], [5, 6, 2], [1, 2], [3], [4]]

def doset(k, map=map, list=list, set=set, tuple=tuple):
  return map(list, set(map(tuple, k)))

def dosort(k, sorted=sorted, xrange=xrange, len=len):
  ks = sorted(k)
  return [ks[i] for i in xrange(len(ks)) if i == 0 or ks[i] != ks[i-1]]

def dogroupby(k, sorted=sorted, groupby=itertools.groupby, list=list):
  ks = sorted(k)
  return [i for i, _ in itertools.groupby(ks)]

def donewk(k):
  newk = []
  for i in k:
    if i not in newk:
      newk.append(i)
  return newk

# sanity check that all functions compute the same result and don't alter k
if __name__ == '__main__':
  savek = list(k)
  for f in doset, dosort, dogroupby, donewk:
    resk = f(k)
    assert k == savek
    print '%10s %s' % (f.__name__, sorted(resk))

Note the sanity check (performed when you just do python nodup.py) and the basic hoisting technique (make constant global names local to each function for speed) to put things on equal footing.

Now we can run checks on the tiny example list:

$ python -mtimeit -s'import nodup' 'nodup.doset(nodup.k)'
100000 loops, best of 3: 11.7 usec per loop
$ python -mtimeit -s'import nodup' 'nodup.dosort(nodup.k)'
100000 loops, best of 3: 9.68 usec per loop
$ python -mtimeit -s'import nodup' 'nodup.dogroupby(nodup.k)'
100000 loops, best of 3: 8.74 usec per loop
$ python -mtimeit -s'import nodup' 'nodup.donewk(nodup.k)'
100000 loops, best of 3: 4.44 usec per loop

confirming that the quadratic approach has small-enough constants to make it attractive for tiny lists with few duplicated values. With a short list without duplicates:

$ python -mtimeit -s'import nodup' 'nodup.donewk([[i] for i in range(12)])'
10000 loops, best of 3: 25.4 usec per loop
$ python -mtimeit -s'import nodup' 'nodup.dogroupby([[i] for i in range(12)])'
10000 loops, best of 3: 23.7 usec per loop
$ python -mtimeit -s'import nodup' 'nodup.doset([[i] for i in range(12)])'
10000 loops, best of 3: 31.3 usec per loop
$ python -mtimeit -s'import nodup' 'nodup.dosort([[i] for i in range(12)])'
10000 loops, best of 3: 25 usec per loop

the quadratic approach isn't bad, but the sort and groupby ones are better. Etc, etc.

If (as the obsession with performance suggests) this operation is at a core inner loop of your pushing-the-boundaries application, it's worth trying the same set of tests on other representative input samples, possibly detecting some simple measure that could heuristically let you pick one or the other approach (but the measure must be fast, of course).

It's also well worth considering keeping a different representation for k -- why does it have to be a list of lists rather than a set of tuples in the first place? If the duplicate removal task is frequent, and profiling shows it to be the program's performance bottleneck, keeping a set of tuples all the time and getting a list of lists from it only if and where needed, might be faster overall, for example.

I would like to suggest to use react-native-vector-icons to import icons to your project. As you use vector icons, you don't need to worry much on icon scaling side. While using the package you are able to use all popular icon set such as fontawesome, ionicons etc..

Besides these iconsets you can also bring your own icons too to your react-native project by packing your icons as a ttf file and you can import that ttf directly to both android and ios project. You can utilise the same react-native-vector-icons library to manage those icons

Here is a detailed procedure to setup custom icons

https://medium.com/bam-tech/add-custom-icons-to-your-react-native-application-f039c244386c

<div style="display:table;width:100%"  >
<div style="display:table-cell;width:49%" id="div1">
content
</div>

<!-- space between divs - display table-cell -->
<div style="display:table-cell;width:1%" id="separated"></div>
<!-- //space between divs - display table-cell -->

<div style="display:table-cell;width:50%" id="div2">
content
</div>
</div>

Set the data as a vector and then place in the function.

Swift 3+

let plainString = "foo"

Encoding

let plainData = plainString.data(using: .utf8)
let base64String = plainData?.base64EncodedString()
print(base64String!) // Zm9v

Decoding

if let decodedData = Data(base64Encoded: base64String!),
   let decodedString = String(data: decodedData, encoding: .utf8) {
  print(decodedString) // foo
}

Swift < 3

let plainString = "foo"

Encoding

let plainData = plainString.dataUsingEncoding(NSUTF8StringEncoding)
let base64String = plainData?.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0))
print(base64String!) // Zm9v

Decoding

let decodedData = NSData(base64EncodedString: base64String!, options: NSDataBase64DecodingOptions(rawValue: 0))
let decodedString = NSString(data: decodedData, encoding: NSUTF8StringEncoding)
print(decodedString) // foo

Objective-C

NSString *plainString = @"foo";

Encoding

NSData *plainData = [plainString dataUsingEncoding:NSUTF8StringEncoding];
NSString *base64String = [plainData base64EncodedStringWithOptions:0];
NSLog(@"%@", base64String); // Zm9v

Decoding

NSData *decodedData = [[NSData alloc] initWithBase64EncodedString:base64String options:0];
NSString *decodedString = [[NSString alloc] initWithData:decodedData encoding:NSUTF8StringEncoding];
NSLog(@"%@", decodedString); // foo 

This will work for 2 or more lists; iterating through the list of lists, but using numpy addition to deal with elements of each list

import numpy as np
list1=[1, 2, 3]
list2=[4, 5, 6]

lists = [list1, list2]
list_sum = np.zeros(len(list1))
for i in lists:
   list_sum += i
list_sum = list_sum.tolist()    

[5.0, 7.0, 9.0]

There can also be a solution by having both float to left.

Try this out:

Working Demo

P.S. This is just an improvement of Ankit's Answer

Built a modal popup example using syarul's jsFiddle link. Here is the updated fiddle.

Created an angular directive called modal and used in html. Explanation:-

HTML

<div ng-controller="MainCtrl" class="container">
  <button ng-click="toggleModal('Success')" class="btn btn-default">Success</button>
  <button ng-click="toggleModal('Remove')" class="btn btn-default">Remove</button>
  <button ng-click="toggleModal('Deny')" class="btn btn-default">Deny</button>
  <button ng-click="toggleModal('Cancel')" class="btn btn-default">Cancel</button>
  <modal visible="showModal">
      Any additional data / buttons
  </modal>
</div>

On button click toggleModal() function is called with the button message as parameter. This function toggles the visibility of popup. Any tags that you put inside will show up in the popup as content since ng-transclude is placed on modal-body in the directive template.

JS

var mymodal = angular.module('mymodal', []);

mymodal.controller('MainCtrl', function ($scope) {
    $scope.showModal = false;
    $scope.buttonClicked = "";
    $scope.toggleModal = function(btnClicked){
        $scope.buttonClicked = btnClicked;
        $scope.showModal = !$scope.showModal;
    };
  });

mymodal.directive('modal', function () {
    return {
      template: '<div class="modal fade">' + 
          '<div class="modal-dialog">' + 
            '<div class="modal-content">' + 
              '<div class="modal-header">' + 
                '<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>' + 
                '<h4 class="modal-title">{{ buttonClicked }} clicked!!</h4>' + 
              '</div>' + 
              '<div class="modal-body" ng-transclude></div>' + 
            '</div>' + 
          '</div>' + 
        '</div>',
      restrict: 'E',
      transclude: true,
      replace:true,
      scope:true,
      link: function postLink(scope, element, attrs) {
        scope.title = attrs.title;

        scope.$watch(attrs.visible, function(value){
          if(value == true)
            $(element).modal('show');
          else
            $(element).modal('hide');
        });

        $(element).on('shown.bs.modal', function(){
          scope.$apply(function(){
            scope.$parent[attrs.visible] = true;
          });
        });

        $(element).on('hidden.bs.modal', function(){
          scope.$apply(function(){
            scope.$parent[attrs.visible] = false;
          });
        });
      }
    };
  });

UPDATE

<!doctype html>
<html ng-app="mymodal">


<body>

<div ng-controller="MainCtrl" class="container">
  <button ng-click="toggleModal('Success')" class="btn btn-default">Success</button>
  <button ng-click="toggleModal('Remove')" class="btn btn-default">Remove</button>
  <button ng-click="toggleModal('Deny')" class="btn btn-default">Deny</button>
  <button ng-click="toggleModal('Cancel')" class="btn btn-default">Cancel</button>
  <modal visible="showModal">
      Any additional data / buttons
  </modal>
</div>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
        <!-- Scripts -->
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="http://netdna.bootstrapcdn.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>

<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.26/angular.min.js"></script>

    <!-- App -->
    <script>
        var mymodal = angular.module('mymodal', []);

mymodal.controller('MainCtrl', function ($scope) {
    $scope.showModal = false;
    $scope.buttonClicked = "";
    $scope.toggleModal = function(btnClicked){
        $scope.buttonClicked = btnClicked;
        $scope.showModal = !$scope.showModal;
    };
  });

mymodal.directive('modal', function () {
    return {
      template: '<div class="modal fade">' + 
          '<div class="modal-dialog">' + 
            '<div class="modal-content">' + 
              '<div class="modal-header">' + 
                '<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>' + 
                '<h4 class="modal-title">{{ buttonClicked }} clicked!!</h4>' + 
              '</div>' + 
              '<div class="modal-body" ng-transclude></div>' + 
            '</div>' + 
          '</div>' + 
        '</div>',
      restrict: 'E',
      transclude: true,
      replace:true,
      scope:true,
      link: function postLink(scope, element, attrs) {
          scope.$watch(attrs.visible, function(value){
          if(value == true)
            $(element).modal('show');
          else
            $(element).modal('hide');
        });

        $(element).on('shown.bs.modal', function(){
          scope.$apply(function(){
            scope.$parent[attrs.visible] = true;
          });
        });

        $(element).on('hidden.bs.modal', function(){
          scope.$apply(function(){
            scope.$parent[attrs.visible] = false;
          });
        });
      }
    };
  });

    </script>
</body>
</html>

UPDATE 2 restrict : 'E' : directive to be used as an HTML tag (element). Example in our case is

<modal>

Other values are 'A' for attribute

<div modal>

'C' for class (not preferable in our case because modal is already a class in bootstrap.css)

<div class="modal">

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)

Assuming nodeList = document.querySelectorAll("div"), this is a concise form of converting nodelist to array.

var nodeArray = [].slice.call(nodeList);

See me use it here.

1.Post-Build Actions > Select ”Trigger parameterized build on other projects”

2.Enter the environment variable with value.Value can also be Jenkins Build Parameters.

Detailed steps can be seen here :-

https://itisatechiesworld.wordpress.com/jenkins-related-articles/jenkins-configuration/jenkins-passing-a-parameter-from-one-job-to-another/

Hope it's helpful :)

Assuming the simplest option (installing rsync on the remote host) isn't feasible, you can use sshfs to mount the remote locally, and rsync from the mount directory. That way you can use all the options rsync offers, for example --exclude.

Something like this should do:

sshfs user@server: sshfsdir
rsync --recursive --exclude=whatever sshfsdir/path/on/server /where/to/store

Note that the effectiveness of rsync (only transferring changes, not everything) doesn't apply here. This is because for that to work, rsync must read every file's contents to see what has changed. However, as rsync runs only on one host, the whole file must be transferred there (by sshfs). Excluded files should not be transferred, however.

You could use preg_split instead of explode and split on [ ]+ (one or more spaces). But I think in this case you could go with preg_match_all and capturing:

preg_match_all('/[ ]php[ ]+\S+[ ]+(\S+)/', $input, $matches);
$result = $matches[1];

The pattern matches a space, php, more spaces, a string of non-spaces (the path), more spaces, and then captures the next string of non-spaces. The first space is mostly to ensure that you don't match php as part of a user name but really only as a command.

An alternative to capturing is the "keep" feature of PCRE. If you use \K in the pattern, everything before it is discarded in the match:

preg_match_all('/[ ]php[ ]+\S+[ ]+\K\S+/', $input, $matches);
$result = $matches[0];

I would use preg_match(). I do something similar for many of my system management scripts. Here is an example:

$test = "user     12052  0.2  0.1 137184 13056 ?        Ss   10:00   0:00 php /home/user/public_html/utilities/runProcFile.php cust1 cron
user     12054  0.2  0.1 137184 13064 ?        Ss   10:00   0:00 php /home/user/public_html/utilities/runProcFile.php cust3 cron
user     12055  0.6  0.1 137844 14220 ?        Ss   10:00   0:00 php /home/user/public_html/utilities/runProcFile.php cust4 cron
user     12057  0.2  0.1 137184 13052 ?        Ss   10:00   0:00 php /home/user/public_html/utilities/runProcFile.php cust89 cron
user     12058  0.2  0.1 137184 13052 ?        Ss   10:00   0:00 php /home/user/public_html/utilities/runProcFile.php cust435 cron
user     12059  0.3  0.1 135112 13000 ?        Ss   10:00   0:00 php /home/user/public_html/utilities/runProcFile.php cust16 cron
root     12068  0.0  0.0 106088  1164 pts/1    S+   10:00   0:00 sh -c ps aux | grep utilities > /home/user/public_html/logs/dashboard/currentlyPosting.txt
root     12070  0.0  0.0 103240   828 pts/1    R+   10:00   0:00 grep utilities";

$lines = explode("\n", $test);

foreach($lines as $line){
        if(preg_match("/.php[\s+](cust[\d]+)[\s+]cron/i", $line, $matches)){
                print_r($matches);
        }

}

The above prints:

Array
(
    [0] => .php cust1 cron
    [1] => cust1
)
Array
(
    [0] => .php cust3 cron
    [1] => cust3
)
Array
(
    [0] => .php cust4 cron
    [1] => cust4
)
Array
(
    [0] => .php cust89 cron
    [1] => cust89
)
Array
(
    [0] => .php cust435 cron
    [1] => cust435
)
Array
(
    [0] => .php cust16 cron
    [1] => cust16
)

You can set $test to equal the output from exec. the values you are looking for would be in the if statement under the foreach. $matches[1] will have the custx value.

@echo off
del /s /f /q c:\windows\temp\*.*
rd /s /q c:\windows\temp
md c:\windows\temp
del /s /f /q C:\WINDOWS\Prefetch
del /s /f /q %temp%\*.*
rd /s /q %temp%
md %temp%
deltree /y c:\windows\tempor~1
deltree /y c:\windows\temp
deltree /y c:\windows\tmp
deltree /y c:\windows\ff*.tmp
deltree /y c:\windows\history
deltree /y c:\windows\cookies
deltree /y c:\windows\recent
deltree /y c:\windows\spool\printers
del c:\WIN386.SWP
cls

• yes, first ensure you added "?wsdl" to your "http......whatever.svc" link.
  • That didn't fix my problem, though. I had to create a new WCF project from the beginning and manually copy the code. That fixed it. Good luck.

And most important!!!

When you change a namespace in your code, also make sure you change it in web.config!

use this code

var sid = $(this);
sid.attr('checked','checked');

I also needed what you've been searching for and did some research.

I found JSC3D (https://code.google.com/p/jsc3d/). It's a project written entirely in Javascript and uses the HTML canvas. It has been tested for Opera, Chrome, Firefox, Safari, IE9 and more.

Then you have services as p3d.in and Sketchfab that give you a nice reader to view 3D models on a web page: they use HTML5 and WebGL. They both have a free version.

I usually go with:

Firstname: 30 chars
Lastname: 30 chars
Email: 50 chars
Address: 200 chars

If I am concerned about long fields for the names, I might sometimes go with 50 for the name fields too, since storage space is rarely an issue these days.

Fixing the comparison:

• S3 is a storage facility accessible any where
• EBS is a device you can mount onto EC2
• EFS is a file system you can mount onto several EC2 instances at the same time

At this point it's a little premature to compare EFS and EBS- the performance of EFS isn't known, nor is its reliability known.

Why would you use S3?

• You don't have a need for the files to be 'local' to one or more EC2 instances.
• (effectively) infinite capacity
• built-in web serving, authentication

Answer E is correct answer. If E is not there, you will soon run out of memory (or) No correct answer.

Object should be unreachable to be eligible for GC. JVM will do multiple scans and moving objects from one generation to another generation to determine the eligibility of GC and frees the memory when the objects are not reachable.

It's best if you worked with DataSets and/or DataTables. Once you have that, ideally straight from your stored procedure with proper column names for headers, you can use the following method:

ws.Cells.LoadFromDataTable(<DATATABLE HERE>, true, OfficeOpenXml.Table.TableStyles.Light8);

.. which will produce a beautiful excelsheet with a nice table!

Now to serve your file, assuming you have an ExcelPackage object as in your code above called pck..

Response.Clear();

Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.AddHeader("Content-Disposition", "attachment;filename=" + sFilename);

Response.BinaryWrite(pck.GetAsByteArray());
Response.End();

You might want to read what Mozilla is doing regarding memory leaks. One tool in their toolbox is the Hans Boehm garbage collector used as memory leak detector.

Go to this link

Download version tar.gz for windows and just extract files to the folder by your needs. On the left pane, you can select which version of openjdk to download

Tutorial: unzip as expected. You need to set system variable PATH to include your directory with openjdk so you can type java -version in console.

JDK vs OpenJDK

#include <algorithm>        // std::search
#include <string>
using std::search; using std::count; using std::string;

int main() {
    string mystring = "The needle in the haystack";
    string str = "needle";
    string::const_iterator it;
    it = search(mystring.begin(), mystring.end(), 
                str.begin(), str.end()) != mystring.end();

    // if string is found... returns iterator to str's first element in mystring
    // if string is not found... returns iterator to mystring.end()

if (it != mystring.end())
    // string is found
else
    // not found

return 0;
}

Add STATS=10 or STATS=1 in backup command.

BACKUP DATABASE [xxxxxx] TO  DISK = N'E:\\Bachup_DB.bak' WITH NOFORMAT, NOINIT,  
NAME = N'xxxx-Complète Base de données Sauvegarde', SKIP, NOREWIND, NOUNLOAD, COMPRESSION,  STATS = 10
GO.

You can use substring function:

s.substring(0,s.length() - 2));

With the first 0, you say to substring that it has to start in the first character of your string and with the s.length() - 2 that it has to finish 2 characters before the String ends.

For more information about substring function you can see here:

http://docs.oracle.com/javase/7/docs/api/java/lang/String.html

Another way to look at this. Check out the details of the exception:

In [49]: try: 
    ...:     open('file.DNE.txt') 
    ...: except Exception as  e: 
    ...:     print(dir(e)) 
    ...:                                                                                                                                    
['__cause__', '__class__', '__context__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__setstate__', '__sizeof__', '__str__', '__subclasshook__', '__suppress_context__', '__traceback__', 'args', 'characters_written', 'errno', 'filename', 'filename2', 'strerror', 'with_traceback']

There are lots of "things" to access using the 'as e' syntax.

This code was solely meant to show the details of this instance.

Context is Instances of the the class android.content.Context provide the connection to the Android system which executes the application. For example, you can check the size of the current device display via the Context.

It also gives access to the resources of the project. It is the interface to global information about the application environment.

The Context class also provides access to Android services, e.g., the alarm manager to trigger time based events.

Activities and services extend the Context class. Therefore they can be directly used to access the Context.

In JAVA Socket – TCP connections are managed on the OS level, java.net.Socket does not provide any in-built function to set timeouts for keepalive packet on a per-socket level. But we can enable keepalive option for java socket but it takes 2 hours 11 minutes (7200 sec) by default to process after a stale tcp connections. This cause connection will be availabe for very long time before purge. So we found some solution to use Java Native Interface (JNI) that call native code(c++) to configure these options.

****Windows OS****

In windows operating system keepalive_time & keepalive_intvl can be configurable but tcp_keepalive_probes cannot be change.By default, when a TCP socket is initialized sets the keep-alive timeout to 2 hours and the keep-alive interval to 1 second. The default system-wide value of the keep-alive timeout is controllable through the KeepAliveTime registry setting which takes a value in milliseconds.

On Windows Vista and later, the number of keep-alive probes (data retransmissions) is set to 10 and cannot be changed.

On Windows Server 2003, Windows XP, and Windows 2000, the default setting for number of keep-alive probes is 5. The number of keep-alive probes is controllable. For windows Winsock IOCTLs library is used to configure the tcp-keepalive parameters.

int WSAIoctl( SocketFD, // descriptor identifying a socket SIO_KEEPALIVE_VALS, // dwIoControlCode (LPVOID) lpvInBuffer, // pointer to tcp_keepalive struct (DWORD) cbInBuffer, // length of input buffer NULL, // output buffer 0, // size of output buffer (LPDWORD) lpcbBytesReturned, // number of bytes returned NULL, // OVERLAPPED structure NULL // completion routine );

Linux OS

Linux has built-in support for keepalive which is need to be enabling TCP/IP networking in order to use it. Programs must request keepalive control for their sockets using the setsockopt interface.

int setsockopt(int socket, int level, int optname, const void *optval, socklen_t optlen)

Each client socket will be created using java.net.Socket. File descriptor ID for each socket will retrieve using java reflection.

People keep saying that 'static' in C has two meanings. I offer an alternate way of viewing it that gives it a single meaning:

• Applying 'static' to an item forces that item to have two properties: (a) It is not visible outside the current scope; (b) It is persistent.

The reason it seems to have two meanings is that, in C, every item to which 'static' may be applied already has one of these two properties, so it seems as if that particular usage only involves the other.

For example, consider variables. Variables declared outside of functions already have persistence (in the data segment), so applying 'static' can only make them not visible outside the current scope (compilation unit). Contrariwise, variables declared inside of functions already have non-visibility outside the current scope (function), so applying 'static' can only make them persistent.

Applying 'static' to functions is just like applying it to global variables - code is necessarily persistent (at least within the language), so only visibility can be altered.

NOTE: These comments only apply to C. In C++, applying 'static' to class methods is truly giving the keyword a different meaning. Similarly for the C99 array-argument extension.

You could reference System.Web in your console application and then look for the Utility functions that split the URL parameters.

I had to delay a form submission in jQuery in order to execute an asynchronous call. Here's the simplified code...

$("$theform").submit(function(e) {
    e.preventDefault();
    var $this = $(this);
    $.ajax('/path/to/script.php',
        {
        type: "POST",
        data: { value: $("#input_control").val() }
    }).done(function(response) {
        $this.unbind('submit').submit();
    });
});

If you are looking at an office setting with regular office non technical users than Sharepoint is a viable alternative. You can setup document folders with version control enabled and checkins and checkouts. Makes it freindlier for regular office users.

From a child component you can access the properties and methods of the parent component with 'require'. Here is an example:

Parent:

.component('myParent', mymodule.MyParentComponent)
...
controllerAs: 'vm',
...
var vm = this;
vm.parentProperty = 'hello from parent';

Child:

require: {
    myParentCtrl: '^myParent'
},
controllerAs: 'vm',
...
var vm = this;
vm.myParentCtrl.parentProperty = 'hello from child';

Give this a try:

success: function(json) {
   console.log(JSON.stringify(json.topics));
   $.each(json.topics, function(idx, topic){
     $("#nav").html('<a href="' + topic.link_src + '">' + topic.link_text + "</a>");
   });
},

str_split can do the trick. Note that strings in PHP can be accessed just like a chars array, in most cases, you won't need to split your string into a "new" array.

Currently Angular CLI doesn't support the feature of renaming or refactoring code.

You can achieve such functionality with the help of some IDE.

Intellij, Eclipse, VSCode etc.. has default support the refactoring.

Nowadays VSCode is showing some uptrend,personally I'm a fan of this

Refactoring with VSCode

Determinig reference : - VS Code help you find all references of a variable by selecting variable and pressing shortcut SHIFT + F12. This works incredibly well with Type Script.

Renaming all instances of reference :- After finding all the references you can press F2 will open a popup and you can change the value and click enter this will update all the instances of reference.

Renaming files and imports You can rename a file and its import references with a plugin. More details can be found here

With above steps after renaming the variables and files you can achieve the angular component renaming.

You can use SimpleDateFormat to convert the String to Date. And after that you have two options,

• Make a Calendar object and and then use that to add two hours, or

• get the time in millisecond from that date object, and add two hours like, (2 * 60 * 60 * 1000)

  SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  
  // replace with your start date string
  Date d = df.parse("2008-04-16 00:05:05"); 
  Calendar gc = new GregorianCalendar();
  gc.setTime(d);
  gc.add(Calendar.HOUR, 2);
  Date d2 = gc.getTime();
  

  Or,

  SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  
  // replace with your start date string
  Date d = df.parse("2008-04-16 00:05:05");
  Long time = d.getTime();
  time +=(2*60*60*1000);
  Date d2 = new Date(time);
  

Have a look to these tutorials.

• SimpleDateFormat Tutorial
• Calendar Tutorial

Files related for deployment (and others temporary items) are created in standalone/tmp/vfs (Virtual File System). You may add a policy at startup for evicting temporary files :

-Djboss.vfs.cache=org.jboss.virtual.plugins.cache.IterableTimedVFSCache 
-Djboss.vfs.cache.TimedPolicyCaching.lifetime=1440

Any path beginning with a slash will be an absolute path. From the root-folder of the server and not the root-folder of your document root. You can use ../ to go into the parent directory.

Don't forget to edit the file. Open file /etc/default/tomcat7 and change

#AUTHBIND=no

to

AUTHBIND=yes

then restart.

Yes, you can do this. The knack you need is the concept that there are two ways of getting tables out of the table server. One way is ..

FROM TABLE A

The other way is

FROM (SELECT col as name1, col2 as name2 FROM ...) B

Notice that the select clause and the parentheses around it are a table, a virtual table.

So, using your second code example (I am guessing at the columns you are hoping to retrieve here):

SELECT a.attr, b.id, b.trans, b.lang
FROM attribute a
JOIN (
 SELECT at.id AS id, at.translation AS trans, at.language AS lang, a.attribute
 FROM attributeTranslation at
) b ON (a.id = b.attribute AND b.lang = 1)

Notice that your real table attribute is the first table in this join, and that this virtual table I've called b is the second table.

This technique comes in especially handy when the virtual table is a summary table of some kind. e.g.

SELECT a.attr, b.id, b.trans, b.lang, c.langcount
FROM attribute a
JOIN (
 SELECT at.id AS id, at.translation AS trans, at.language AS lang, at.attribute
 FROM attributeTranslation at
) b ON (a.id = b.attribute AND b.lang = 1)
JOIN (
 SELECT count(*) AS langcount,  at.attribute
 FROM attributeTranslation at
 GROUP BY at.attribute
) c ON (a.id = c.attribute)

See how that goes? You've generated a virtual table c containing two columns, joined it to the other two, used one of the columns for the ON clause, and returned the other as a column in your result set.

Or just use a regular for loop instead of foreach. A for loop is slightly faster (though you won't notice the difference except in very time critical code).

just had the same issue, but i could not find the conflicting branch anymore.

in my case the repo had and "foo" branch before, but not anymore and i tried to create and checkout "foo/bar" from remote. As i said "foo" did not exist anymore, but the issue persisted.

In the end, the branch "foo" was still in the .git/config file, after deleting it everything was alright :)

You're thinking it wrong.

What you are trying to do:

If stdin exists use it, else check whether the user supplied a filename.

What you should be doing instead:

If the user supplies a filename, then use the filename. Else use stdin.

You cannot know the total length of an incoming stream unless you read it all and keep it buffered. You just cannot seek backwards into pipes. This is a limitation of how pipes work. Pipes are not suitable for all tasks and sometimes intermediate files are required.

Sure you can:

Option Explicit

'***** User defined type
Public Type MyType
     MyInt As Integer
     MyString As String
     MyDoubleArr(2) As Double
End Type

'***** Testing MyType as single variable
Public Sub MyFirstSub()
    Dim MyVar As MyType

    MyVar.MyInt = 2
    MyVar.MyString = "cool"
    MyVar.MyDoubleArr(0) = 1
    MyVar.MyDoubleArr(1) = 2
    MyVar.MyDoubleArr(2) = 3

    Debug.Print "MyVar: " & MyVar.MyInt & " " & MyVar.MyString & " " & MyVar.MyDoubleArr(0) & " " & MyVar.MyDoubleArr(1) & " " & MyVar.MyDoubleArr(2)
End Sub

'***** Testing MyType as an array
Public Sub MySecondSub()
    Dim MyArr(2) As MyType
    Dim i As Integer

    MyArr(0).MyInt = 31
    MyArr(0).MyString = "VBA"
    MyArr(0).MyDoubleArr(0) = 1
    MyArr(0).MyDoubleArr(1) = 2
    MyArr(0).MyDoubleArr(2) = 3
    MyArr(1).MyInt = 32
    MyArr(1).MyString = "is"
    MyArr(1).MyDoubleArr(0) = 11
    MyArr(1).MyDoubleArr(1) = 22
    MyArr(1).MyDoubleArr(2) = 33
    MyArr(2).MyInt = 33
    MyArr(2).MyString = "cool"
    MyArr(2).MyDoubleArr(0) = 111
    MyArr(2).MyDoubleArr(1) = 222
    MyArr(2).MyDoubleArr(2) = 333

    For i = LBound(MyArr) To UBound(MyArr)
        Debug.Print "MyArr: " & MyArr(i).MyString & " " & MyArr(i).MyInt & " " & MyArr(i).MyDoubleArr(0) & " " & MyArr(i).MyDoubleArr(1) & " " & MyArr(i).MyDoubleArr(2)
    Next
End Sub

The ioctl function is useful for implementing a device driver to set the configuration on the device. e.g. a printer that has configuration options to check and set the font family, font size etc. ioctl could be used to get the current font as well as set the font to a new one. A user application uses ioctl to send a code to a printer telling it to return the current font or to set the font to a new one.

int ioctl(int fd, int request, ...)

1. fd is file descriptor, the one returned by open;
2. request is request code. e.g GETFONT will get the current font from the printer, SETFONT will set the font on the printer;
3. the third argument is void *. Depending on the second argument, the third may or may not be present, e.g. if the second argument is SETFONT, the third argument can be the font name such as "Arial";

int request is not just a macro. A user application is required to generate a request code and the device driver module to determine which configuration on device must be played with. The application sends the request code using ioctl and then uses the request code in the device driver module to determine which action to perform.

A request code has 4 main parts

    1. A Magic number - 8 bits
    2. A sequence number - 8 bits
    3. Argument type (typically 14 bits), if any.
    4. Direction of data transfer (2 bits).  

If the request code is SETFONT to set font on a printer, the direction for data transfer will be from user application to device driver module (The user application sends the font name "Arial" to the printer). If the request code is GETFONT, direction is from printer to the user application.

In order to generate a request code, Linux provides some predefined function-like macros.

1._IO(MAGIC, SEQ_NO) both are 8 bits, 0 to 255, e.g. let us say we want to pause printer. This does not require a data transfer. So we would generate the request code as below

#define PRIN_MAGIC 'P'
#define NUM 0
#define PAUSE_PRIN __IO(PRIN_MAGIC, NUM) 

and now use ioctl as

ret_val = ioctl(fd, PAUSE_PRIN);

The corresponding system call in the driver module will receive the code and pause the printer.

2. __IOW(MAGIC, SEQ_NO, TYPE) MAGIC and SEQ_NO are the same as above, and TYPE gives the type of the next argument, recall the third argument of ioctl is void *. W in __IOW indicates that the data flow is from user application to driver module. As an example, suppose we want to set the printer font to "Arial".

#define PRIN_MAGIC 'S'
#define SEQ_NO 1
#define SETFONT __IOW(PRIN_MAGIC, SEQ_NO, unsigned long)

further,

char *font = "Arial";
ret_val = ioctl(fd, SETFONT, font); 

Now font is a pointer, which means it is an address best represented as unsigned long, hence the third part of _IOW mentions type as such. Also, this address of font is passed to corresponding system call implemented in device driver module as unsigned long and we need to cast it to proper type before using it. Kernel space can access user space and hence this works. other two function-like macros are __IOR(MAGIC, SEQ_NO, TYPE) and __IORW(MAGIC, SEQ_NO, TYPE) where the data flow will be from kernel space to user space and both ways respectively.

Please let me know if this helps!

To put the same text in a certain number of cells do the following:

1. Highlight the cells you want to put text into
2. Type into the cell you're currently in the data you want to be repeated
3. Hold Crtl and press 'return'

You will find that all the highlighted cells now have the same data in them. Have a nice day.

Although $date is a part of MongoDB Extended JSON and that's what you get as default with mongoexport I don't think you can really use it as a part of the query.

If try exact search with $date like below:

db.foo.find({dt: {"$date": "2012-01-01T15:00:00.000Z"}})

you'll get error:

error: { "$err" : "invalid operator: $date", "code" : 10068 }

Try this:

db.mycollection.find({
    "dt" : {"$gte": new Date("2013-10-01T00:00:00.000Z")}
})

or (following comments by @user3805045):

db.mycollection.find({
    "dt" : {"$gte": ISODate("2013-10-01T00:00:00.000Z")}
})

ISODate may be also required to compare dates without time (noted by @MattMolnar).

According to Data Types in the mongo Shell both should be equivalent:

The mongo shell provides various methods to return the date, either as a string or as a Date object:

• Date() method which returns the current date as a string.
• new Date() constructor which returns a Date object using the ISODate() wrapper.
• ISODate() constructor which returns a Date object using the ISODate() wrapper.

and using ISODate should still return a Date object.

{"$date": "ISO-8601 string"} can be used when strict JSON representation is required. One possible example is Hadoop connector.

As others have mentioned, you can't extract the type of a variable at runtime. However, you could construct your own "object" and store the type along with it. Then you would be able to check it at runtime:

typedef struct {
   int  type;     // or this could be an enumeration
   union {
      double d;
      int i;
   } u;
} CheesyObject;

Then set the type as needed in the code:

CheesyObject o;
o.type = 1;  // or better as some define, enum value...
o.u.d = 3.14159;

In Java 8 for an Obj entity with field and getField() method you can use:

List<Obj> objs ...

Stream<Obj> notNullObjs =
  objs.stream().filter(obj -> obj.getValue() != null);

Double sum = notNullObjs.mapToDouble(Obj::getField).sum();

For UTF 8 Conversion and Currency Symbol Export Use this:

var tableToExcel = (function() {
  var uri = 'data:application/vnd.ms-excel;base64,'
    , template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><?xml version="1.0" encoding="UTF-8" standalone="yes"?><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>'
    , base64 = function(s) { return window.btoa(unescape(encodeURIComponent(s))) }
    , format = function(s, c) { return s.replace(/{(\w+)}/g, function(m, p) { return c[p]; }) }
  return function(table, name) {
      if (!table.nodeType) table = document.getElementById(table)
      var ctx = { worksheet: name || 'Worksheet', table: table.innerHTML }
    window.location.href = uri + base64(format(template, ctx))
  }
})()

If someone wants to generate light colors

sprintf('#%06X', mt_rand(0xFF9999, 0xFFFF00));

JosepStyons is right. Open cmd.exe and run

taskkill /im processname.exe /f

If there is an error saying,

ERROR: The process "process.exe" with PID 1234 could not be terminated. Reason: Access is denied.

then try running cmd.exe as administrator.

I am also using nunique but it will be very helpful if you have to use an aggregate function like 'min', 'max', 'count' or 'mean' etc.

df.groupby('YEARMONTH')['CLIENTCODE'].transform('nunique') #count(distinct)
df.groupby('YEARMONTH')['CLIENTCODE'].transform('min')     #min
df.groupby('YEARMONTH')['CLIENTCODE'].transform('max')     #max
df.groupby('YEARMONTH')['CLIENTCODE'].transform('mean')    #average
df.groupby('YEARMONTH')['CLIENTCODE'].transform('count')   #count

Simple solution:

function betweenDates($cmpDate,$startDate,$endDate){ 
   return (date($cmpDate) > date($startDate)) && (date($cmpDate) < date($endDate));
}

You need to use the Spring JUnit runner in order to wire in Spring beans from your context. The code below assumes that you have a application context called testContest.xml available on the test classpath.

import org.hibernate.SessionFactory;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.transaction.annotation.Transactional;

import java.sql.SQLException;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.startsWith;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath*:**/testContext.xml"})
@Transactional
public class someDaoTest {

    @Autowired
    protected SessionFactory sessionFactory;

    @Test
    public void testDBSourceIsCorrect() throws SQLException {
        String databaseProductName = sessionFactory.getCurrentSession()
                .connection()
                .getMetaData()
                .getDatabaseProductName();
        assertThat("Test container is pointing at the wrong DB.", databaseProductName, startsWith("HSQL"));
    }
}

Note: This works with Spring 2.5.2 and Hibernate 3.6.5

If you want to develop with Xcode 7 on your iOS10 device :
(Note: you can adapt this command to other Xcode and iOS versions)

1. Rename your Xcode.app to Xcode7.app and download Xcode 8 from the app store.
2. Run Xcode 8 once to install it.

3. Open the terminal and create a symbolic link from Xcode 8 Developer Disk Image 10.0 to Xcode 8 Developer Disk Image folder using this command:

   ln -s /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/10.0\ \(14A345\)/ /Applications/Xcode7.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/10.0
   

Source

<?php
function strip_only($str, $tags, $stripContent = false) {
    $content = '';
    if(!is_array($tags)) {
        $tags = (strpos($str, '>') !== false
                 ? explode('>', str_replace('<', '', $tags))
                 : array($tags));
        if(end($tags) == '') array_pop($tags);
    }
    foreach($tags as $tag) {
        if ($stripContent)
             $content = '(.+</'.$tag.'[^>]*>|)';
         $str = preg_replace('#</?'.$tag.'[^>]*>'.$content.'#is', '', $str);
    }
    return $str;
}

$str = '<font color="red">red</font> text';
$tags = 'font';
$a = strip_only($str, $tags); // red text
$b = strip_only($str, $tags, true); // text
?> 

What helped me here is recent ResizeObserver spec polyfill:

const divEl = $('#section60');

const ro = new ResizeObserver(() => {
    if (divEl.is(':visible')) {
        console.log("it's visible now!");
    }
});
ro.observe(divEl[0]);

Note that it's crossbrowser and performant (no polling).

you can use String format to include variables within strings

i use this code to include 2 variable in string:

String myString = String.format("this is my string %s %2d", variable1Name, variable2Name);

For Multiple columns you can use code similar to one given below.I was just going through this and found answer to check multiple columns in Datatable.

 private bool IsAllColumnExist(DataTable tableNameToCheck, List<string> columnsNames)
    {
        bool iscolumnExist = true;
        try
        {
            if (null != tableNameToCheck && tableNameToCheck.Columns != null)
            {
                foreach (string columnName in columnsNames)
                {
                    if (!tableNameToCheck.Columns.Contains(columnName))
                    {
                        iscolumnExist = false;
                        break;
                    }
                }
            }
            else
            {
                iscolumnExist = false;
            }
        }            
        catch (Exception ex)
        {

        }
        return iscolumnExist;
    }

If you just want to pass a class to a function, so that this function can create new instances of that class, just treat the class like any other value you would give as a parameter:

def printinstance(someclass):
  print someclass()

Result:

>>> printinstance(list)
[]
>>> printinstance(dict)
{}

When you want to treat lambda expressions as expression trees and look inside them instead of executing them. For example, LINQ to SQL gets the expression and converts it to the equivalent SQL statement and submits it to server (rather than executing the lambda).

Conceptually, Expression<Func<T>> is completely different from Func<T>. Func<T> denotes a delegate which is pretty much a pointer to a method and Expression<Func<T>> denotes a tree data structure for a lambda expression. This tree structure describes what a lambda expression does rather than doing the actual thing. It basically holds data about the composition of expressions, variables, method calls, ... (for example it holds information such as this lambda is some constant + some parameter). You can use this description to convert it to an actual method (with Expression.Compile) or do other stuff (like the LINQ to SQL example) with it. The act of treating lambdas as anonymous methods and expression trees is purely a compile time thing.

Func<int> myFunc = () => 10; // similar to: int myAnonMethod() { return 10; }

will effectively compile to an IL method that gets nothing and returns 10.

Expression<Func<int>> myExpression = () => 10;

will be converted to a data structure that describes an expression that gets no parameters and returns the value 10:

larger image

While they both look the same at compile time, what the compiler generates is totally different.

This works perfectly

<i class="fa fa-power-off text-gray" style="transform: rotate(90deg);"></i>

You can select the "Runnable JAR File" after you click on "Export".

You can specify your main driver in "Launch Configuration"

Here is my workflow after creating a folder and cd'ing into it:

$ virtualenv venv --distribute
New python executable in venv/bin/python
Installing distribute.........done.
Installing pip................done.
$ source venv/bin/activate
(venv)$ python

Working with large models were very slow before the SP1, (have not tried it after the SP1, but it is said that is a snap now).

I still Design my tables first, then an in-house built tool generates the POCOs for me, so it takes the burden of doing repetitive tasks for each poco object.

when you are using source control systems, you can easily follow the history of your POCOs, it is not that easy with designer generated code.

I have a base for my POCO, which makes a lot of things quite easy.

I have views for all of my tables, each base view brings basic info for my foreign keys and my view POCOs derive from my POCO classes, which is quite usefull again.

And finally I dont like designers.

The Go blog: Go maps in action has an excellent explanation.

When iterating over a map with a range loop, the iteration order is not specified and is not guaranteed to be the same from one iteration to the next. Since Go 1 the runtime randomizes map iteration order, as programmers relied on the stable iteration order of the previous implementation. If you require a stable iteration order you must maintain a separate data structure that specifies that order.

Here's my modified version of example code: http://play.golang.org/p/dvqcGPYy3-

package main

import (
    "fmt"
    "sort"
)

func main() {
    // To create a map as input
    m := make(map[int]string)
    m[1] = "a"
    m[2] = "c"
    m[0] = "b"

    // To store the keys in slice in sorted order
    keys := make([]int, len(m))
    i := 0
    for k := range m {
        keys[i] = k
        i++
    }
    sort.Ints(keys)

    // To perform the opertion you want
    for _, k := range keys {
        fmt.Println("Key:", k, "Value:", m[k])
    }
}

Output:

Key: 0 Value: b
Key: 1 Value: a
Key: 2 Value: c

The server_name^docs directive is used to identify virtual hosts, they're not used to set the binding.

netstat tells you that nginx listens on 0.0.0.0:80 which means that it will accept connections from any IP.

If you want to change the IP nginx binds on, you have to change the listen^docs rule.
So, if you want to set nginx to bind to localhost, you'd change that to:

listen 127.0.0.1:80;

In this way, requests that are not coming from localhost are discarded (they don't even hit nginx).

When you try to use or manipulate variables in one line beware of their content! E.g. a variable like the following

PATH=C:\Program Files (x86)\somewhere;"C:\Company\Cool Tool";%USERPROFILE%\AppData\Local\Microsoft\WindowsApps;

may lead to a lot of unhand-able trouble if you use it as %PATH%

1. The closing parentheses terminate your group statement
2. The double quotes don't allow you to use %PATH% to handle the parentheses problem
3. And what will a referenced variable like %USERPROFILE% contain?

You are trying to delete a row that is referenced by another row (possibly in another table).

You need to delete that row first (or at least re-set its foreign key to something else), otherwise you’d end up with a row that references a non-existing row. The database forbids that.

=INDEX(GoogleFinance("CURRENCY:" & "EUR" & "USD", "price", A2), 2, 2)

where A2 is the cell with a date formatted as date.

Replace "EUR" and "USD" with your currency pair.

./ refers to the current working directory, except in the require() function. When using require(), it translates ./ to the directory of the current file called. __dirname is always the directory of the current file.

For example, with the following file structure

/home/user/dir/files/config.json

{
  "hello": "world"
}

/home/user/dir/files/somefile.txt

text file

/home/user/dir/dir.js

var fs = require('fs');

console.log(require('./files/config.json'));
console.log(fs.readFileSync('./files/somefile.txt', 'utf8'));

If I cd into /home/user/dir and run node dir.js I will get

{ hello: 'world' }
text file

But when I run the same script from /home/user/ I get

{ hello: 'world' }

Error: ENOENT, no such file or directory './files/somefile.txt'
    at Object.openSync (fs.js:228:18)
    at Object.readFileSync (fs.js:119:15)
    at Object.<anonymous> (/home/user/dir/dir.js:4:16)
    at Module._compile (module.js:432:26)
    at Object..js (module.js:450:10)
    at Module.load (module.js:351:31)
    at Function._load (module.js:310:12)
    at Array.0 (module.js:470:10)
    at EventEmitter._tickCallback (node.js:192:40)

Using ./ worked with require but not for fs.readFileSync. That's because for fs.readFileSync, ./ translates into the cwd (in this case /home/user/). And /home/user/files/somefile.txt does not exist.

If you need this for data-binding purposes, you can do this with a custom descriptor model... by implementing ICustomTypeDescriptor, TypeDescriptionProvider and/or TypeCoverter, you can create your own PropertyDescriptor instances at runtime. This is what controls like DataGridView, PropertyGrid etc use to display properties.

To bind to lists, you'd need ITypedList and IList; for basic sorting: IBindingList; for filtering and advanced sorting: IBindingListView; for full "new row" support (DataGridView): ICancelAddNew (phew!).

It is a lot of work though. DataTable (although I hate it) is cheap way of doing the same thing. If you don't need data-binding, just use a hashtable ;-p

Here's a simple example - but you can do a lot more...

If this does not need to be super-fast just create an array of integers, one integer for each letter (only alphabetic so 2*26 integers? or any binary data possible?). go through the string one char at a time, get the index of the responsible integer (e.g. if you only have alphabetic chars you can have 'A' be at index 0 and get that index by subtracting any 'A' to 'Z' by 'A' just as an example of how you can get reasonably fast indices) and increment the value in that index.

There are various micro-optimizations to make this faster (if necessary).

Set setHasMenuOptions(true) works if application has a theme with Actionbar such as Theme.MaterialComponents.DayNight.DarkActionBar or Activity has it's own Toolbar, otherwise onCreateOptionsMenu in fragment does not get called.

If you want to use standalone Toolbar you either need to get activity and set your Toolbar as support action bar with

(requireActivity() as? MainActivity)?.setSupportActionBar(toolbar)

which lets your fragment onCreateOptionsMenu to be called.

Other alternative is, you can inflate your Toolbar's own menu with toolbar.inflateMenu(R.menu.YOUR_MENU) and item listener with

toolbar.setOnMenuItemClickListener {
   // do something
   true
}

To count the columns of your table precisely, you can get form information_schema.columns with passing your desired Database(Schema) Name and Table Name.

Reference the following Code:

SELECT count(*)
FROM information_schema.columns
WHERE table_schema = 'myDB'  
AND table_name = 'table1';

Put sleep. It will work. I have tried. The reason is that the page wasn't loaded yet. Check this question to know how to wait for load - Wait for page load in Selenium

Problem with finishAffinity() is that only activities in your current task are closed, but activities with singleInstance launchMode and in other tasks are still opened and brought to the foreground after finishAffinity(). The problem with System.exit(0) is that you finish your App process with all background services and all allocated memory and this can lead to undesired side effects (e.g. not receiving notifications anymore).

Here are other two alternatives that solve both problems:

1. Use ActivityLifecycleCallbacks in you app class to register created activities and close them when needed: https://gist.github.com/sebaslogen/5006ec133243379d293f9d6221100ddb#file-myandroidapplication-kt-L10
2. In testing you can use ActivityLifecycleMonitorRegistry: https://github.com/sebaslogen/CleanGUITestArchitecture/blob/master/app/src/androidTest/java/com/neoranga55/cleanguitestarchitecture/util/ActivityFinisher.java#L15

This doesn't use sed, but using >> will append to a file. For example:

echo 'one, two, three' >> testfile.csv

Edit: To prepend to a file, try something like this:

echo "text"|cat - yourfile > /tmp/out && mv /tmp/out yourfile

I found this through a quick Google search.

So, youtube gives out the iframe tag as follows:

<iframe width="560" height="315" src="https://www.youtube.com/embed/2EIeUlvHAiM" frameborder="0" allowfullscreen></iframe>

In my case, i just changed it to width="100%" and left the rest as is. It's not the most elegant solution (after all, in different devices you'll get weird ratios) But the video itself does not get deformed, just the frame.

You should use a KeyGenerator to generate the Key,

AES key lengths are 128, 192, and 256 bit depending on the cipher you want to use.

Take a look at the tutorial here

Here is the code for Password Based Encryption, this has the password being entered through System.in you can change that to use a stored password if you want.

        PBEKeySpec pbeKeySpec;
        PBEParameterSpec pbeParamSpec;
        SecretKeyFactory keyFac;

        // Salt
        byte[] salt = {
            (byte)0xc7, (byte)0x73, (byte)0x21, (byte)0x8c,
            (byte)0x7e, (byte)0xc8, (byte)0xee, (byte)0x99
        };

        // Iteration count
        int count = 20;

        // Create PBE parameter set
        pbeParamSpec = new PBEParameterSpec(salt, count);

        // Prompt user for encryption password.
        // Collect user password as char array (using the
        // "readPassword" method from above), and convert
        // it into a SecretKey object, using a PBE key
        // factory.
        System.out.print("Enter encryption password:  ");
        System.out.flush();
        pbeKeySpec = new PBEKeySpec(readPassword(System.in));
        keyFac = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
        SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);

        // Create PBE Cipher
        Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");

        // Initialize PBE Cipher with key and parameters
        pbeCipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParamSpec);

        // Our cleartext
        byte[] cleartext = "This is another example".getBytes();

        // Encrypt the cleartext
        byte[] ciphertext = pbeCipher.doFinal(cleartext);

If you provider does not support Invoke and you need to combine two expression, you can use an ExpressionVisitor to replace the parameter in the second expression by the parameter in the first expression.

class ParameterUpdateVisitor : ExpressionVisitor
{
    private ParameterExpression _oldParameter;
    private ParameterExpression _newParameter;

    public ParameterUpdateVisitor(ParameterExpression oldParameter, ParameterExpression newParameter)
    {
        _oldParameter = oldParameter;
        _newParameter = newParameter;
    }

    protected override Expression VisitParameter(ParameterExpression node)
    {
        if (object.ReferenceEquals(node, _oldParameter))
            return _newParameter;

        return base.VisitParameter(node);
    }
}

static Expression<Func<T, bool>> UpdateParameter<T>(
    Expression<Func<T, bool>> expr,
    ParameterExpression newParameter)
{
    var visitor = new ParameterUpdateVisitor(expr.Parameters[0], newParameter);
    var body = visitor.Visit(expr.Body);

    return Expression.Lambda<Func<T, bool>>(body, newParameter);
}

[TestMethod]
public void ExpressionText()
{
    string text = "test";

    Expression<Func<Coco, bool>> expr1 = p => p.Item1.Contains(text);
    Expression<Func<Coco, bool>> expr2 = q => q.Item2.Contains(text);
    Expression<Func<Coco, bool>> expr3 = UpdateParameter(expr2, expr1.Parameters[0]);

    var expr4 = Expression.Lambda<Func<Recording, bool>>(
        Expression.OrElse(expr1.Body, expr3.Body), expr1.Parameters[0]);

    var func = expr4.Compile();

    Assert.IsTrue(func(new Coco { Item1 = "caca", Item2 = "test pipi" }));
}

The issue is that the value for backgroundImage needs to be a string like this:

<div class="circular" v-bind:style="{ backgroundImage: 'url(' + image + ')' }"></div>

Here's a simplified fiddle that's working: https://jsfiddle.net/89af0se9/1/

Re: the comment below about kebab-case, this is how you can do that:

<div class="circular" v-bind:style="{ 'background-image': 'url(' + image + ')' }"></div>

In other words, the value for v-bind:style is just a plain Javascript object and follows the same rules.

UPDATE: One other note about why you may have trouble getting this to work.

You should make sure your image value is quoted so that the end resulting string is:

url('some/url/path/to/image.jpeg')

Otherwise, if your image URL has special characters in it (such as whitespace or parentheses) the browser may not apply it properly. In Javascript, the assignment would look like:

this.image = "'some/url/path/to/image.jpeg'"

or

this.image = "'" + myUrl + "'"

Technically, this could be done in the template, but the escaping required to keep it valid HTML isn't worth it.

More info here: Is quoting the value of url() really necessary?

I just posted a fix here that would also apply in this case - basically, you do a hex find-and-replace in your external library to make it think that it's ARMv7s code. You should be able to use lipo to break it into 3 static libraries, duplicate / modify the ARMv7 one, then use lipo again to assemble a new library for all 4 architectures.

I thought I would share a summary of my alias.. also I find using 'zsh' great with git it chroma keys everything nicely and tells you want branch are in all of the time by changing the command prompt.

For those covering from SVN you will find this useful: (this is a combination of ideas from different threads, I only take credit of knowing how to use copy/paste)

.gitconfig:
        ls = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)%an%Creset' --abbrev-commit --date=relative --name-status

>>git ls
* 99f21a6 - (HEAD -> swift) New Files from xcode 7 (11 hours ago) Jim Zucker| 
| A     icds.xcodeproj/project.pbxproj
| A     icds.xcodeproj/project.xcworkspace/contents.xcworkspacedata
| A     icds/AppDelegate.m
| A     icds/Assets.xcassets/AppIcon.appiconset/Contents.json

* e0a1bb6 - Move everything to old (11 hours ago) Jim Zucker| 
| D     Classes/AppInfoViewControler.h
| D     Classes/AppInfoViewControler.m
| D     Classes/CurveInstrument.h


.gitconfig: 
       lt = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)%an%Creset' --abbrev-commit --date=relative

>>git lt
* 99f21a6 - (HEAD -> swift) New Files from xcode 7 (11 hours ago) Jim Zucker
* e0a1bb6 - Move everything to old (11 hours ago) Jim Zucker
* 778bda6 - Cleanup for new project (11 hours ago) Jim Zucker
* 7373b5e - clean up files from old version (11 hours ago) Jim Zucker
* 14a8d53 - (tag: 1.x, origin/swift, origin/master, master) Initial Commit (16 hours ago) Jim Zucker


.gitconfig
lt = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)%an%Creset' --abbrev-commit --date=relative

>> git lt

commit 99f21a61de832bad7b2bdb74066a08cac3d0bf3c
Author: Jim Zucker <[email protected]>
Date:   Tue Dec 1 22:23:10 2015 -0800

    New Files from xcode 7

A       icds.xcodeproj/project.pbxproj
A       icds.xcodeproj/project.xcworkspace/contents.xcworkspacedata


commit e0a1bb6b59ed6a4f9147e894d7f7fe00283fce8d
Author: Jim Zucker <[email protected]>
Date:   Tue Dec 1 22:17:00 2015 -0800

    Move everything to old

D       Classes/AppInfoViewControler.h
D       Classes/AppInfoViewControler.m
D       Classes/CurveInstrument.h
D       Classes/CurveInstrument.m

Its a really old thread, but here is my take on it. Rather than 2 different clauses, one greater than and less than. I use this below syntax for selecting records from A date. If you want a date range then previous answers are the way to go.

SELECT * FROM TABLE_NAME WHERE 
DATEDIFF(DAY, DATEADD(DAY, X , CURRENT_TIMESTAMP), <column_name>) = 0

In the above case X will be -1 for yesterday's records

You have to add the row explicitly to the table

table.Rows.Add(row);

There is another way to evaluate filters that mirrors the syntax from the views. The invocation is hairy but you could build a shortcut to it. I like that the syntax of the string is identical to what you'd have in a view. Looks like this:

function myCtrl($scope, $interpolate) { 
  $scope.$eval($interpolate( "{{ myvar * 10 | currency }} dollars." ))
}

You can also use the following code to open new page in new tab.

<asp:Button ID="Button1" runat="server" Text="Go" 
  OnClientClick="window.open('yourPage.aspx');return false;" 
  onclick="Button3_Click" />

And just call Response.Redirect("yourPage.aspx"); behind button event.

Background images on :before and :after elements should work. If you post an example I could probably tell you why it does not work in your case.

Here is an example: http://jsfiddle.net/namas/3/

You can specify the dimensions of the element in % by using background-size: 100% 100% (width / height), for example.

run composer update. That's it

To create file try

function makefile(){
  var fso;
  var thefile;

    fso = new ActiveXObject("Scripting.FileSystemObject");
    thefile=fso.CreateTextFile("C:\\tmp\\MyFile.txt",true);

    thefile.close()
    }

Create your directory in the C drive because windows has security against writing from web e.g create folder named "tmp" in C drive.

UPDATED based on comments. The original implementation generated a-h ~1.95% of the time and the remaining characters ~1.56% of the time. The update generates all characters ~1.61% of the time.

FRAMEWORK SUPPORT - .NET Core 3 (and future platforms that support .NET Standard 2.1 or above) provides a cryptographically sound method RandomNumberGenerator.GetInt32() to generate a random integer within a desired range.

Unlike some of the alternatives presented, this one is cryptographically sound.

using System;
using System.Security.Cryptography;
using System.Text;

namespace UniqueKey
{
    public class KeyGenerator
    {
        internal static readonly char[] chars =
            "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890".ToCharArray(); 

        public static string GetUniqueKey(int size)
        {            
            byte[] data = new byte[4*size];
            using (RNGCryptoServiceProvider crypto = new RNGCryptoServiceProvider())
            {
                crypto.GetBytes(data);
            }
            StringBuilder result = new StringBuilder(size);
            for (int i = 0; i < size; i++)
            {
                var rnd = BitConverter.ToUInt32(data, i * 4);
                var idx = rnd % chars.Length;

                result.Append(chars[idx]);
            }

            return result.ToString();
        }

        public static string GetUniqueKeyOriginal_BIASED(int size)
        {
            char[] chars =
                "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890".ToCharArray();
            byte[] data = new byte[size];
            using (RNGCryptoServiceProvider crypto = new RNGCryptoServiceProvider())
            {
                crypto.GetBytes(data);
            }
            StringBuilder result = new StringBuilder(size);
            foreach (byte b in data)
            {
                result.Append(chars[b % (chars.Length)]);
            }
            return result.ToString();
        }
    }
}

Based on a discussion of alternatives here and updated/modified based on the comments below.

Here's a small test harness that demonstrates the distribution of characters in the old and updated output. For a deep discussion of the analysis of randomness, check out random.org.

using System;
using System.Collections.Generic;
using System.Linq;
using UniqueKey;

namespace CryptoRNGDemo
{
    class Program
    {

        const int REPETITIONS = 1000000;
        const int KEY_SIZE = 32;

        static void Main(string[] args)
        {
            Console.WriteLine("Original BIASED implementation");
            PerformTest(REPETITIONS, KEY_SIZE, KeyGenerator.GetUniqueKeyOriginal_BIASED);

            Console.WriteLine("Updated implementation");
            PerformTest(REPETITIONS, KEY_SIZE, KeyGenerator.GetUniqueKey);
            Console.ReadKey();
        }

        static void PerformTest(int repetitions, int keySize, Func<int, string> generator)
        {
            Dictionary<char, int> counts = new Dictionary<char, int>();
            foreach (var ch in UniqueKey.KeyGenerator.chars) counts.Add(ch, 0);

            for (int i = 0; i < REPETITIONS; i++)
            {
                var key = generator(KEY_SIZE); 
                foreach (var ch in key) counts[ch]++;
            }

            int totalChars = counts.Values.Sum();
            foreach (var ch in UniqueKey.KeyGenerator.chars)
            {
                Console.WriteLine($"{ch}: {(100.0 * counts[ch] / totalChars).ToString("#.000")}%");
            }
        }
    }
}

if you want to fire a function on every modal close, you can use this method,

$(document).ready(function (){
    $('.modal').each(function (){
        $(this).on('hidden.bs.modal', function () {
            //fires when evey popup close. Ex. resetModal();
        });
    });
});

So you don't need to specify modal ids every time.

Building off of ngoozeff's answer, if you want to make a command run completely in the background (i.e., if you want to hide its output and prevent it from being killed when you close its Terminal window), you can do this instead:

cmd="google-chrome";
"${cmd}" &>/dev/null & disown;

• &>/dev/null sets the command’s stdout and stderr to /dev/null instead of inheriting them from the parent process.
• & makes the shell run the command in the background.
• disown removes the “current” job, last one stopped or put in the background, from under the shell’s job control.

In some shells you can also use &! instead of & disown; they both have the same effect. Bash doesn’t support &!, though.

Also, when putting a command inside of a variable, it's more proper to use eval "${cmd}" rather than "${cmd}":

cmd="google-chrome";
eval "${cmd}" &>/dev/null & disown;

If you run this command directly in Terminal, it will show the PID of the process which the command starts. But inside of a shell script, no output will be shown.

Here's a function for it:

#!/bin/bash

# Run a command in the background.
_evalBg() {
    eval "$@" &>/dev/null & disown;
}

cmd="google-chrome";
_evalBg "${cmd}";

Also, see: Running bash commands in the background properly

Seems like a permissions issue. This is what worked for me

sudo chown -R $(whoami) /Library/Ruby/Gems/*

or in your case

sudo chown -R $(whoami) /usr/local/lib/ruby/gems/2.0.0/gems/

What does this do:

This is telling the system to change the files to change the ownership to the current user. Something must have gotten messed up when something got installed. Usually this is because there are multiple accounts or users are using sudo to install when they should not always have to.

KISS. You will be doing all sorts of other switch/case things with your enums so why should printing be different? Forgetting a case in your print routine isn't a huge deal when you consider there are about 100 other places you can forget a case. Just compile -Wall, which will warn of non-exhaustive case matches. Don't use "default" because that will make the switch exhaustive and you wont get warnings. Instead, let the switch exit and deal with the default case like so...

const char *myenum_str(myenum e)
{
    switch(e) {
    case ONE: return "one";
    case TWO: return "two";
    }
    return "invalid";
}

Maybe this is useful to anyone in the future, I have implemented a custom Authorize Attribute like this:

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = true, Inherited = true)]
public class ClaimAuthorizeAttribute : AuthorizeAttribute, IAuthorizationFilter
{
    private readonly string _claim;

    public ClaimAuthorizeAttribute(string Claim)
    {
        _claim = Claim;
    }

    public void OnAuthorization(AuthorizationFilterContext context)
    {
        var user = context.HttpContext.User;
        if(user.Identity.IsAuthenticated && user.HasClaim(ClaimTypes.Name, _claim))
        {
            return;
        }

        context.Result = new ForbidResult();
    }
}

SQL Server Express editions are limited in some ways - one way is that they don't have the SQL Agent that allows you to schedule jobs.

There are a few third-party extensions that provide that capability - check out e.g.:

• Express Agent for SQL Server Express: Jobs, Jobs, Jobs and Mail (latest update is from 2005, it isn't maintained anymore).
• SQL Scheduler

Make sure that in the path to the project there is no foldername having whitespace. While creating a project the specified path folders must not contain any space in their naming.

h5py provides a model of datasets and groups. The former is basically arrays and the latter you can think of as directories. Each is named. You should look at the documentation for the API and examples:

http://docs.h5py.org/en/latest/quick.html

A simple example where you are creating all of the data upfront and just want to save it to an hdf5 file would look something like:

In [1]: import numpy as np
In [2]: import h5py
In [3]: a = np.random.random(size=(100,20))
In [4]: h5f = h5py.File('data.h5', 'w')
In [5]: h5f.create_dataset('dataset_1', data=a)
Out[5]: <HDF5 dataset "dataset_1": shape (100, 20), type "<f8">

In [6]: h5f.close()

You can then load that data back in using: '

In [10]: h5f = h5py.File('data.h5','r')
In [11]: b = h5f['dataset_1'][:]
In [12]: h5f.close()

In [13]: np.allclose(a,b)
Out[13]: True

Definitely check out the docs:

http://docs.h5py.org

Writing to hdf5 file depends either on h5py or pytables (each has a different python API that sits on top of the hdf5 file specification). You should also take a look at other simple binary formats provided by numpy natively such as np.save, np.savez etc:

http://docs.scipy.org/doc/numpy/reference/routines.io.html

If your div completely filled the webpage then you can fill up that div and so have a canvas that fills up the div.

You may find this interesting, as you may need to use a css to use percentage, but, it depends on which browser you are using, and how much it is in agreement with the spec: http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#the-canvas-element

The intrinsic dimensions of the canvas element equal the size of the coordinate space, with the numbers interpreted in CSS pixels. However, the element can be sized arbitrarily by a style sheet. During rendering, the image is scaled to fit this layout size.

You may need to get the offsetWidth and height of the div, or get the window height/width and set that as the pixel value.

you need to use backslash before ". like \"

From the doc here you can see that

A character preceded by a backslash ( \ ) is an escape sequence and has special meaning to the compiler.

and " (double quote) is a escacpe sequence

When an escape sequence is encountered in a print statement, the compiler interprets it accordingly. For example, if you want to put quotes within quotes you must use the escape sequence, \", on the interior quotes. To print the sentence

She said "Hello!" to me.

you would write

System.out.println("She said \"Hello!\" to me.");

In MacOS Mojave, the location is:

/Library/Java/JavaVirtualMachines/jdk1.8.0_192.jdk/Contents/Home/jre/lib/security/cacerts 

If using sdkman to manage java versions, the cacerts is in

~/.sdkman/candidates/java/current/jre/lib/security

There is no JavaScript function to achieve this. However, you could set a boolean value to true when you add the listener, and false when you remove it. Then check against this boolean before potentially adding a duplicate event listener.

Possible duplicate: How to check whether dynamically attached event listener exists or not?

CURL OPERATION BETWEEN SERVER TO SERVER WITHOUT HTML FORM IN PHP USING MULTIPART/FORM-DATA

// files to upload

$filename = "https://example.s3.amazonaws.com/0.jpg";       

// URL to upload to (Destination server)

$url = "https://otherserver/image";

AND

    $curl = curl_init();

    curl_setopt_array($curl, array(
        CURLOPT_URL => $url,
        CURLOPT_RETURNTRANSFER => 1,
        CURLOPT_MAXREDIRS => 10,
        CURLOPT_TIMEOUT => 30,
        //CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST => "POST",
        CURLOPT_POST => 1,
        CURLOPT_POSTFIELDS => file_get_contents($filename),
        CURLOPT_HTTPHEADER => array(
            //"Authorization: Bearer $TOKEN",
            "Content-Type: multipart/form-data",
            "Content-Length: " . strlen(file_get_contents($filename)),
            "API-Key: abcdefghi" //Optional if required
        ),
    ));

   $response = curl_exec($curl);

    $info = curl_getinfo($curl);
//echo "code: ${info['http_code']}";

//print_r($info['request_header']);

    var_dump($response);
    $err = curl_error($curl);

    echo "error";
    var_dump($err);
    curl_close($curl);

An understanding of the Iterator pattern will be helpful for you. I recommend reading the same.

Iterator Pattern

At a high level the iterator pattern can be used to provide a standard way of iterating through collections of any type. We have 3 participants in the iterator pattern, the actual collection (client), the aggregator and the iterator. The aggregate is an interface/abstract class that has a method that returns an iterator. Iterator is an interface/abstract class that has methods allowing us to iterate through a collection.

In order to implement the pattern we first need to implement an iterator to produce a concrete that can iterate over the concerned collection (client) Then the collection (client) implements the aggregator to return an instance of the above iterator.

Here is the UML diagram

So basically in c#, IEnumerable is the abstract aggregate and IEnumerator is the abstract Iterator. IEnumerable has a single method GetEnumerator that is responsible for creating an instance of IEnumerator of the desired type. Collections like Lists implement the IEnumerable.

Example. Lets suppose that we have a method getPermutations(inputString) that returns all the permutations of a string and that the method returns an instance of IEnumerable<string>

In order to count the number of permutations we could do something like the below.

 int count = 0;
        var permutations = perm.getPermutations(inputString);
        foreach (string permutation in permutations)
        {
            count++;
        }

The c# compiler more or less converts the above to

using (var permutationIterator = perm.getPermutations(input).GetEnumerator())
        {
            while (permutationIterator.MoveNext())
            {
                count++;
            }
        }

If you have any questions please don't hesitate to ask.

A cleaner, more reliable way is to go into redis-cli and then type shutdown

In redis-cli, type help @server and you will see this near the bottom of the list:

SHUTDOWN - summary: Synchronously save the dataset to disk and then shut down the server since: 0.07

And if you have a redis-server instance running in a terminal, you'll see this:

User requested shutdown...
[6716] 02 Aug 15:48:44 * Saving the final RDB snapshot before exiting.
[6716] 02 Aug 15:48:44 * DB saved on disk
[6716] 02 Aug 15:48:44 # Redis is now ready to exit, bye bye...

I still think using Join is simpler. Record the expected completion time (as Now+timeout), then, in a loop, do

if(!thread.Join(End-now))
    throw new NotFinishedInTime();

Here's a blog post that should help with escaping ticks in strings.

Here's the simplest method from said post:

The most simple and most used way is to use a single quotation mark with two single >quotation marks in both sides.

SELECT 'test single quote''' from dual;

The output of the above statement would be:

test single quote'

Simply stating you require an additional single quote character to print a single quote >character. That is if you put two single quote characters Oracle will print one. The first >one acts like an escape character.

This is the simplest way to print single quotation marks in Oracle. But it will get >complex when you have to print a set of quotation marks instead of just one. In this >situation the following method works fine. But it requires some more typing labour.

This question already has a great answer, but I ran into the same error, in a different scenario: displaying a List in an EditorTemplate.

I have a model like this:

public class Foo
{
    public string FooName { get; set; }
    public List<Bar> Bars { get; set; }
}

public class Bar
{
    public string BarName { get; set; }
}

And this is my main view:

@model Foo

@Html.TextBoxFor(m => m.Name, new { @class = "form-control" })  
@Html.EditorFor(m => m.Bars)

And this is my Bar EditorTemplate (Bar.cshtml)

@model List<Bar>

<div class="some-style">
    @foreach (var item in Model)
    {
        <label>@item.BarName</label>
    }
</div>

And I got this error:

The model item passed into the dictionary is of type 'Bar', but this dictionary requires a model item of type 'System.Collections.Generic.List`1[Bar]

The reason for this error is that EditorFor already iterates the List for you, so if you pass a collection to it, it would display the editor template once for each item in the collection.

This is how I fixed this problem:

Brought the styles outside of the editor template, and into the main view:

@model Foo

@Html.TextBoxFor(m => m.Name, new { @class = "form-control" })  
<div class="some-style">
    @Html.EditorFor(m => m.Bars)
</div>

And changed the EditorTemplate (Bar.cshtml) to this:

@model Bar

<label>@Model.BarName</label>

The accepted solution does not work unless the browser takes up the full screen,

This seems to always work

  const popupCenterScreen = (url, title, w, h, focus) => {
    const top = (screen.height - h) / 4, left = (screen.width - w) / 2;
    const popup = window.open(url, title, `scrollbars=yes,width=${w},height=${h},top=${top},left=${left}`);
    if (focus === true && window.focus) popup.focus();
    return popup;
  }

Impl:

some.function.call({data: ''})
    .then(result =>
     popupCenterScreen(
         result.data.url,
         result.data.title, 
         result.data.width, 
         result.data.height, 
         true));

=VLOOKUP(A2,IF(B1:B3="B",A1:C3,""),1,FALSE)

Ctrl+Shift+Enter to enter.

Have you considered List.BinarySearch(item)?

You said that your large collection is already sorted so this seems like the perfect opportunity? A hash would definitely be the fastest, but this brings about its own problems and requires a lot more overhead for storage.

Nobody noticed the html attibute "accesskey" which is available since a while.

This is a no javascript way to keyboard shortcuts stuffs.

The accesskey attributes shortcuts on MDN

Intented to be used like this. The html attribute itself is enough, howewer we can change the placeholder or other indicator depending of the browser and os. The script is a untested scratch approach to give an idea. You may want to use a browser library detector like the tiny bowser

let client = navigator.userAgent.toLowerCase(),_x000D_
    isLinux = client.indexOf("linux") > -1,_x000D_
    isWin = client.indexOf("windows") > -1,_x000D_
    isMac = client.indexOf("apple") > -1,_x000D_
    isFirefox = client.indexOf("firefox") > -1,_x000D_
    isWebkit = client.indexOf("webkit") > -1,_x000D_
    isOpera = client.indexOf("opera") > -1,_x000D_
    input = document.getElementById('guestInput');_x000D_
_x000D_
if(isFirefox) {_x000D_
   input.setAttribute("placeholder", "ALT+SHIFT+Z");_x000D_
} else if (isWin) {_x000D_
   input.setAttribute("placeholder", "ALT+Z");_x000D_
} else if (isMac) {_x000D_
  input.setAttribute("placeholder", "CTRL+ALT+Z");_x000D_
} else if (isOpera) {_x000D_
  input.setAttribute("placeholder", "SHIFT+ESCAPE->Z");_x000D_
} else {'Point me to operate...'}

<input type="text" id="guestInput" accesskey="z" placeholder="Acces shortcut:"></input>

September 2020 - Programmatically Answer

You can do it with programmatically for Switch Widget and Material Design:

Switch yourSwitchButton = findViewById(R.id.switch_id);

yourSwitchButton.setChecked(true); // true is open, false is close.

yourSwitchButton.setOnCheckedChangeListener((compoundButton, b) -> {
        if (b){
          //open job.
        }  
        else  {
          //close job.
        }
    });

@canerkaseler

The Most Elegant Solutions...

app.service('svc', function(){ this.attr = []; return this; });
app.controller('ctrl', function($scope, svc){
    $scope.attr = svc.attr || [];
    $scope.$watch('attr', function(neo, old){ /* if necessary */ });
});
app.run(function($rootScope, svc){
    $rootScope.svc = svc;
    $rootScope.$watch('svc', function(neo, old){ /* change the world */ });
});

Also, I write EDAs (Event-Driven Architectures) so I tend to do something like the following [oversimplified version]:

var Service = function Service($rootScope) {
    var $scope = $rootScope.$new(this);
    $scope.that = [];
    $scope.$watch('that', thatObserver, true);
    function thatObserver(what) {
        $scope.$broadcast('that:changed', what);
    }
};

Then, I put a listener in my controller on the desired channel and just keep my local scope up to date this way.

In conclusion, there's not much of a "Best Practice" -- rather, its mostly preference -- as long as you're keeping things SOLID and employing weak coupling. The reason I would advocate the latter code is because EDAs have the lowest coupling feasible by nature. And if you aren't too concerned about this fact, let us avoid working on the same project together.

Hope this helps...

It depends what is the character and what encoding it is in:

• An ASCII character in 8-bit ASCII encoding is 8 bits (1 byte), though it can fit in 7 bits.

• An ISO-8895-1 character in ISO-8859-1 encoding is 8 bits (1 byte).

• A Unicode character in UTF-8 encoding is between 8 bits (1 byte) and 32 bits (4 bytes).

• A Unicode character in UTF-16 encoding is between 16 (2 bytes) and 32 bits (4 bytes), though most of the common characters take 16 bits. This is the encoding used by Windows internally.

• A Unicode character in UTF-32 encoding is always 32 bits (4 bytes).

• An ASCII character in UTF-8 is 8 bits (1 byte), and in UTF-16 - 16 bits.

• The additional (non-ASCII) characters in ISO-8895-1 (0xA0-0xFF) would take 16 bits in UTF-8 and UTF-16.

That would mean that there are between 0.03125 and 0.125 characters in a bit.

Try the specific_install gem it allows you you to install a gem from its github repository (like 'edge'), or from an arbitrary URL. Very usefull for forking gems and hacking on them on multiple machines and such.

gem install specific_install
gem specific_install -l <url to a github gem>

e.g.

gem specific_install https://github.com/githubsvnclone/rdoc.git 

The other answers didn't work for me. I found the answer in their documentation:

http://api.highcharts.com/highcharts#Series

Using this method (see JSFiddle example):

var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container'
    },

    series: [{
        data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]        
    }]
});

// the button action
$('#button').click(function() {
    chart.series[0].setData([129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4, 29.9, 71.5, 106.4] );
});

On saveAndFlush, changes will be flushed to DB immediately in this command. With save, this is not necessarily true, and might stay just in memory, until flush or commit commands are issued.

But be aware, that even if you flush the changes in transaction and do not commit them, the changes still won't be visible to the outside transactions until the commit in this transaction.

In your case, you probably use some sort of transactions mechanism, which issues commit command for you if everything works out fine.

Enums in C++ are like integers masked by the names you give them, when you declare your enum-values (this is not a definition only a hint how it works).

But there are two errors in your code:

1. Spell enum all lower case
2. You don't need the Days. before Saturday.
3. If this enum is declared in a class, then use if (day == YourClass::Saturday){}

I use the len function. It's much faster than empty. len(df.index) is even faster.

import pandas as pd
import numpy as np

df = pd.DataFrame(np.random.randn(10000, 4), columns=list('ABCD'))

def empty(df):
    return df.empty

def lenz(df):
    return len(df) == 0

def lenzi(df):
    return len(df.index) == 0

'''
%timeit empty(df)
%timeit lenz(df)
%timeit lenzi(df)

10000 loops, best of 3: 13.9 µs per loop
100000 loops, best of 3: 2.34 µs per loop
1000000 loops, best of 3: 695 ns per loop

len on index seems to be faster
'''

Look at error_reporting directive in php.ini.

A StringBuffer or its younger and faster brother StringBuilder is preferred whenever you're going do to a lot of string concatenations in flavor of

string += newString;

or equivalently

string = string + newString;

because the above constructs implicitly creates new string everytime which will be a huge performance and drop. A StringBuffer / StringBuilder is under the hoods best to be compared with a dynamically expansible List<Character>.

I recommended an experimental new attribute CSS I tested on latest browser and it's good:

image-rendering: optimizeSpeed;             /*                     */
image-rendering: -moz-crisp-edges;          /* Firefox             */
image-rendering: -o-crisp-edges;            /* Opera               */
image-rendering: -webkit-optimize-contrast; /* Chrome (and Safari) */
image-rendering: optimize-contrast;         /* CSS3 Proposed       */
-ms-interpolation-mode: nearest-neighbor;   /* IE8+                */

With this the browser will know the algorithm for rendering

You are using the wrong format tokens when parsing your input. You should use ddd for an abbreviation of the name of day of the week, DD for day of the month, MMM for an abbreviation of the month's name, YYYY for the year, hh for the 1-12 hour, mm for minutes and A for AM/PM. See moment(String, String) docs.

Here is a working live sample:

console.log( moment('Mon 03-Jul-2017, 11:00 AM', 'ddd DD-MMM-YYYY, hh:mm A').format('hh:mm A') );_x000D_
console.log( moment('Mon 03-Jul-2017, 11:00 PM', 'ddd DD-MMM-YYYY, hh:mm A').format('hh:mm A') );

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script>

Keyword Arguments are often shortened to kwargs in Python. In computer programming,

keyword arguments refer to a computer language's support for function calls that clearly state the name of each parameter within the function call.

The usage of the two asterisk before the parameter name, **kwargs, is when one doesn't know how many keyword arguments will be passed into the function. When that's the case, it's called Arbitrary / Wildcard Keyword Arguments.

One example of this is Django's receiver functions.

def my_callback(sender, **kwargs):
    print("Request finished!")

Notice that the function takes a sender argument, along with wildcard keyword arguments (**kwargs); all signal handlers must take these arguments. All signals send keyword arguments, and may change those keyword arguments at any time. In the case of request_finished, it’s documented as sending no arguments, which means we might be tempted to write our signal handling as my_callback(sender).

This would be wrong – in fact, Django will throw an error if you do so. That’s because at any point arguments could get added to the signal and your receiver must be able to handle those new arguments.

Note that it doesn't have to be called kwargs, but it needs to have ** (the name kwargs is a convention).

I generated a node/gulp app using the generator-gulp-webapp Yeoman generator. It handled the "clean conundrum" this way (translating to the original tasks mentioned in the question):

gulp.task('develop', ['clean'], function () {
  gulp.start('coffee');
});

That error is due to missing of modules in pyinstaller. You can find the missing modules by running script in executable command line, i.e., by removing '-w' from the command. Once you created the command line executable file then in command line it will show the missing modules. By finding those missing modules you can add this to your command : " --hidden-import = missingmodule "

I solved my problem through this.

The answers above were all assuming your Python distribution would have some third-party libraries in order to achieve the "one liner python ftpd" goal, but that is not the case of what @zio was asking. Also, SimpleHTTPServer involves web broswer for downloading files, it's not quick enough.

Python can't do ftpd by itself, but you can use netcat, nc:

nc is basically a built-in tool from any UNIX-like systems (even embedded systems), so it's perfect for "quick and temporary way to transfer files".

Step 1, on the receiver side, run:

nc -l 12345 | tar -xf -

this will listen on port 12345, waiting for data.

Step 2, on the sender side:

tar -cf - ALL_FILES_YOU_WANT_TO_SEND ... | nc $RECEIVER_IP 12345

You can also put pv in the middle to monitor the progress of transferring:

tar -cf - ALL_FILES_YOU_WANT_TO_SEND ...| pv | nc $RECEIVER_IP 12345

After the transferring is finished, both sides of nc will quit automatically, and job done.

By default, when you fetch your URL, React native sets the cookie.

To see cookies and make sure that you can use the https://www.npmjs.com/package/react-native-cookie package. I used to be very satisfied with it.

Of course, Fetch does this when it does

credentials: "include",// or "some-origin"

Well, but how to use it

--- after installation this package ----

to get cookies:

import Cookie from 'react-native-cookie';

Cookie.get('url').then((cookie) => {
   console.log(cookie);
});

to set cookies:

Cookie.set('url', 'name of cookies', 'value  of cookies');

only this

But if you want a few, you can do it

1- as nested:

Cookie.set('url', 'name of cookies 1', 'value  of cookies 1')
        .then(() => {
            Cookie.set('url', 'name of cookies 2', 'value  of cookies 2')
            .then(() => {
                ...
            })
        })

2- as back together

Cookie.set('url', 'name of cookies 1', 'value  of cookies 1');
Cookie.set('url', 'name of cookies 2', 'value  of cookies 2');
Cookie.set('url', 'name of cookies 3', 'value  of cookies 3');
....

Now, if you want to make sure the cookies are set up, you can get it again to make sure.

Cookie.get('url').then((cookie) => {
  console.log(cookie);
});

The short version can be like this:

const diff = (a, b) => b.filter((i) => a.indexOf(i) === -1);

result:

diff(['a', 'b'], ['a', 'b', 'c', 'd']);

["c", "d"]

I have used in this way. Its Working fine!

$rules = [

            'password' => [

                    'required',

                    'string',

                    'min:6',

                'max:12',             // must be at least 8 characters in length

                ],

            'confirm_password' => 'required|same:password|min:6'

        ];

You can add "_CRT_SECURE_NO_WARNINGS" in Preprocessor Definitions.

Right-click your project->Properties->Configuration Properties->C/C++ ->Preprocessor->Preprocessor Definitions.

Git can search diffs with the -S option (it's called pickaxe in the docs)

git log -S password

This will find any commit that added or removed the string password. Here a few options:

• -p: will show the diffs. If you provide a file (-p file), it will generate a patch for you.
• -G: looks for differences whose added or removed line matches the given regexp, as opposed to -S, which "looks for differences that introduce or remove an instance of string".
• --all: searches over all branches and tags; alternatively, use --branches[=<pattern>] or --tags[=<pattern>]

Another thing to mention is that atan2 is more stable when computing tangents using an expression like atan(y / x) and x is 0 or close to 0.

I can explain in a more specific way starting with this example that's based on Fredrik's good one.

var test1 = [];
test1.push("value");
test1.push("value2");

var test2 = new Array();
test2.push("value");
test2.push("value2");

alert(test1);
alert(test2);
alert(test1 == test2);
alert(test1.value == test2.value);

I just added another value to the arrays, and made four alerts: The first and second are to give us the value stored in each array, to be sure about the values. They will return the same! Now try the third one, it returns false, that's because

JS treats test1 as a VARIABLE with a data type of array, and it treats test2 as an OBJECT with the functionality of an array, and there are few slight differences here.

The first difference is when we call test1 it calls a variable without thinking, it just returns the values that are stored in this variable disregarding its data type! But, when we call test2 it calls the Array() function and then it stores our "Pushed" values in its "Value" property, and the same happens when we alert test2, it returns the "Value" property of the array object.

So when we check if test1 equals test2 of course they will never return true, one is a function and the other is a variable (with a type of array), even if they have the same value!

To be sure about that, try the 4th alert, with the .value added to it; it will return true. In this case we tell JS "Disregarding the type of the container, whether was it function or variable, please compare the values that are stored in each container and tell us what you've seen!" that's exactly what happens.

I hope I said the idea behind that clearly, and sorry for my bad English.

Just to give a short, working example to see an effect of their difference

new Thread(foo).Start();

private void foo()
{
  this.Dispatcher.BeginInvoke(DispatcherPriority.Normal,
    (ThreadStart)delegate()
    {
        myTextBox.Text = "bing";
        Thread.Sleep(TimeSpan.FromSeconds(3));
    });
  MessageBox.Show("done");
}

If use BeginInvoke, MessageBox pops simultaneous to the text update. If use Invoke, MessageBox pops after the 3 second sleep. Hence, showing the effect of an asynchronous (BeginInvoke) and a synchronous (Invoke) call.

One of the reasons for this error is the use of the jaxb implementation from the jdk. I am not sure why such a problem can appear in pretty simple xml parsing situations. You may use the latest version of the jaxb library from a public maven repository:

http://mvnrepository.com

<dependency>
    <groupId>javax.xml.bind</groupId>
    <artifactId>jaxb-api</artifactId>
    <version>2.2.12</version>
</dependency>

You can hijack your Android audio port using an Arduino board like this. Then, you have two options (as far as I'm concerned):

1) Buy another Arduino Shield that supports RFID. I haven't seen one that supports UHF so far.

2) Try to connect your Arduino hijack with a USB RFID reader and build some embedded hardware kit.

Right now, I'm working in the second option but with iPhone.

There are in fact 3 questions in your question :

• Define frontend, middle and back end
• How and when do they overlap ?
• Their associated usual bottlenecks.

What JB King has described is correct, but it is a particular, simple version, where in fact he mapped front, middle and bacn to an MVC layer. He mapped M to the back, V to the front, and C to the middle.

For many people, it is just fine, since they come from the ugly world where even MVC was not applied, and you could have direct DB calls in a view.

However in real, complex web applications, you indeed have two or three different layers, called front, middle and back. Each of them may have an associated database and a controller.

The front-end will be visible by the end-user. It should not be confused with the front-office, which is the UI for parameters and administration of the front. The front-end will usually be some kind of CMS or e-commerce Platform (Magento, etc.)

The middle-end is not compulsory and is where the business logics is. It will be based on a PIM, a MDM tool, or some kind of custom database where you enrich your produts or your articles (for CMS). It'll also be the place where you code business functions that need to be shared between differents frontends (for instance between the PC frontend and the API-based mobile application). Sometimes, an ESB or tool like ActiveMQ will be your middle-end

The back-end will be a 3rd layer, surrouding your source database or your ERP. It may be jsut the API wrting to and reading from your ERP. It may be your supplier DB, if you are doing e-commerce. In fact, it really depends on web projects, but it is always a central repository. It'll be accessed either through a DB call, through an API, or an Hibernate layer, or a full-featured back-end application

This description means that answering the other 2 questions is not possible in this thread, as bottlenecks really depend on what your 3 ends contain : what JB King wrote remains true for simple MVC architectures

at the time the question was asked (5 years ago), maybe the MVC pattern was not yet so widely adopted. Now, there is absolutely no reason why the MVC pattern would not be followed and a view would be tied to DB calls. If you read the question "Are there cases where they MUST overlap, and frontend/backend cannot be separated?" in a broader sense, with 3 different components, then there times when the 3 layers architecture is useless of course. Think of a simple personal blog, you'll not need to pull external data or poll RabbitMQ queues.

In my case, I had to find the difference of dates in seconds. The date was a UTC date string, so I converted it to a local date object. This is what I did:

let utc1 = new Date();
let utc2 = null;
const dateForCompare = new Date(valueFromServer);
dateForCompare.setTime(dateForCompare.getTime() - dateForCompare.getTimezoneOffset() * 
 60000);
utc2 = dateForCompare;

const seconds = Math.floor(utc1 - utc2) / 1000;

OK, got it working with this (creating the UIImageView programmatically):

var imageViewObject :UIImageView

imageViewObject = UIImageView(frame:CGRectMake(0, 0, 600, 600))

imageViewObject.image = UIImage(named:"afternoon")

self.view.addSubview(imageViewObject)

self.view.sendSubviewToBack(imageViewObject)