You can use $last variable within ng-repeat directive. Take a look at doc.

You can do it like this:

 <div ng-repeat="file in files" ng-class="computeCssClass($last)">
 {{file.name}}
 </div>

Where computeCssClass is function of controller which takes sole argument and returns 'last' or null.

Or

  <div ng-repeat="file in files" ng-class="{'last':$last}">
  {{file.name}}
  </div>

Just in case for data.table users, the following works for me:

df[, grep("ABC", names(df)), with = FALSE]

This is a working example of making ZIPs in PHP:

$zip = new ZipArchive();
$zip_name = time().".zip"; // Zip name
$zip->open($zip_name,  ZipArchive::CREATE);
foreach ($files as $file) {
  echo $path = "uploadpdf/".$file;
  if(file_exists($path)){
  $zip->addFromString(basename($path),  file_get_contents($path));  
  }
  else{
   echo"file does not exist";
  }
}
$zip->close();

If you run SHOW VARIABLES from a mysql console you can look for basedir.

When I run the following:

mysql> SHOW VARIABLES WHERE `Variable_name` = 'basedir';

on my system I get /usr/local/mysql as the Value returned. (I am not using MAMP - I installed MySQL with homebrew.

mysqldon my machine is in /usr/local/mysql/bin so the basedir is where most everything will be installed to.

Also util:

mysql> SHOW VARIABLES WHERE `Variable_name` = 'datadir'; 

To find where the DBs are stored.

For more: http://dev.mysql.com/doc/refman/5.0/en/show-variables.html

and http://dev.mysql.com/doc/refman/5.0/en/server-options.html#option_mysqld_basedir

This will work.

def check(arr):
    if np.all(arr == 0):
        return True
    return False

Undoubtedly, for your purposes (which I assume is just a programming exercise), the best thing is to check your results against any of the listings of the digits of pi on the web.

And how do we know that those values are correct? Well, I could say that there are computer-science-y ways to prove that an implementation of an algorithm is correct.

More pragmatically, if different people use different algorithms, and they all agree to (pick a number) a thousand (million, whatever) decimal places, that should give you a warm fuzzy feeling that they got it right.

Historically, William Shanks published pi to 707 decimal places in 1873. Poor guy, he made a mistake starting at the 528th decimal place.

Very interestingly, in 1995 an algorithm was published that had the property that would directly calculate the nth digit (base 16) of pi without having to calculate all the previous digits!

Finally, I hope your initial algorithm wasn't pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... That may be the simplest to program, but it's also one of the slowest ways to do so. Check out the pi article on Wikipedia for faster approaches.

Error check:

result = str.Substring(Math.Max(0, str.Length - 5))

You can discover those things easily by yourself:

def hello(*args, **kwargs):
    print kwargs
    print type(kwargs)
    print dir(kwargs)

hello(what="world")

A very simple check that you can do:

Explanation 1:

if (value) {
 // it will come inside
 // If value is either undefined, null or ''(empty string)
}

Explanation 2:

(!value) ? "Case 1" : "Case 2"

If the value is either undefined , null or '' then Case 1 otherwise for any other value of value Case 2.

Pass the arguments to the run command from within gdb.

$ gdb ./a.out
(gdb) r < t
Starting program: /dir/a.out < t

The answer for all combinations of Excel versions (2003 + 2007) and file types

Most other answers here concern their Excel version only and will not necessarily help you, because their answer just might not be true for your version of Excel.

For example, adding the BOM character introduces problems with automatic column separator recognition, but not with every Excel version.

There are 3 variables that determines if it works in most Excel versions:

• Encoding
• BOM character presence
• Cell separator

Somebody stoic at SAP tried every combination and reported the outcome. End result? Use UTF16le with BOM and tab character as separator to have it work in most Excel versions.

You don't believe me? I wouldn't either, but read here and weep: http://wiki.sdn.sap.com/wiki/display/ABAP/CSV+tests+of+encoding+and+column+separator

in my case it also need to install it's npm package

so

npm install react-native-debugger -g

This is my original post, which sparked some debate... because it is wrong:

The switch statement is not the same thing as a big if-else statement. Each case must be unique and evaluated statically. The switch statement does a constant time branch regardless of how many cases you have. The if-else statement evaluates each condition until it finds one that is true.

In fact, the C# switch statement is not always a constant time branch.

In some cases the compiler will use a CIL switch statement which is indeed a constant time branch using a jump table. However, in sparse cases as pointed out by Ivan Hamilton the compiler may generate something else entirely.

This is actually quite easy to verify by writing various C# switch statements, some sparse, some dense, and looking at the resulting CIL with the ildasm.exe tool.

$ echo "This is   a sentence." | tr -s " " "\012"
This
is
a
sentence.

For checking for spaces, use grep:

$ echo "This is   a sentence." | grep " " > /dev/null
$ echo $?
0
$ echo "Thisisasentence." | grep " " > /dev/null     
$ echo $?
1

I did it in Android using Calendar and SimpleDateFormat. The following method returns a Calendar with the "GMT" TimeZone (This is the universal time zone). Then you can use the Calendar class to set the hour between differents time zones, using the method setTimeZone() of the Calendar class.

private static final String GMT = "GMT";
private static final String DATE_FORMAT_ISO = "yyyyMMdd'T'HHmmss";

public static Calendar isoToCalendar(final String inputDate) {
    Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone(GMT));
    try {
        SimpleDateFormat dateFormat = new SimpleDateFormat(DATE_FORMAT_ISO, Locale.US);
        dateFormat.setTimeZone(TimeZone.getTimeZone(GMT));
        Date date = dateFormat.parse(inputDate);
        calendar.setTime(date);
    } catch (ParseException e) {
        Log.e("TAG",e.getMessage());
    }
    return calendar;
}

REMEMBER: The Date class doesn't know about the TimeZone existence. By this reason, if you debug one date,you always see the date for your current timezone.

It was not clear to me in the question if ts.tax_status_code is a primary or alternate key or not. Same thing with recipient_code. This would be useful to know.

You can deal with the possibility of your bind variable being null using an OR as follows. You would bind the same thing to the first two bind variables.

If you are concerned about performance, you would be better to check if the values you intend to bind are null or not and then issue different SQL statement to avoid the OR.

insert into account_type_standard 
(account_type_Standard_id, tax_status_id, recipient_id)
(
select 
   account_type_standard_seq.nextval,
   ts.tax_status_id, 
   r.recipient_id
from tax_status ts, recipient r
where (ts.tax_status_code = ? OR (ts.tax_status_code IS NULL and ? IS NULL))
and (r.recipient_code = ? OR (r.recipient_code IS NULL and ? IS NULL))

I would suggest creating your package structure by feature, and not by the implementation layer. A good write up on this is Java practices: Package by feature, not layer

& is a logical elementwise operator, while && is a logical short-circuiting operator (which can only operate on scalars).

For example (pardon my syntax).

If..

A = [True True False True]
B = False
A & B = [False False False False]

..or..

B = True
A & B = [True True False True]

For &&, the right operand is only calculated if the left operand is true, and the result is a single boolean value.

x = (b ~= 0) && (a/b > 18.5)

Hope that's clear.

When using angular-cli, this is what works for me:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <system.webServer>
        <staticContent>
            <remove fileExtension=".eot" />
            <mimeMap fileExtension=".eot" mimeType="application/vnd.ms-fontobject" />
            <remove fileExtension=".ttf" />
            <mimeMap fileExtension=".ttf" mimeType="application/octet-stream" />
            <remove fileExtension=".svg" />
            <mimeMap fileExtension=".svg" mimeType="image/svg+xml" />
            <remove fileExtension=".woff" />
            <mimeMap fileExtension=".woff" mimeType="application/font-woff" />
            <remove fileExtension=".woff2" />
            <mimeMap fileExtension=".woff2" mimeType="application/font-woff2" />
            <remove fileExtension=".json" />
            <mimeMap fileExtension=".json" mimeType="application/json" />
        </staticContent>
        <rewrite>
            <rules>
                <rule name="AngularJS" stopProcessing="true">
                    <match url="^(?!.*(.bundle.js|.bundle.js.map|.bundle.js.gz|.bundle.css|.bundle.css.gz|.chunk.js|.chunk.js.map|.png|.jpg|.ico|.eot|.svg|.woff|.woff2|.ttf|.html)).*$" />
                    <conditions logicalGrouping="MatchAll">
                    </conditions>
                    <action type="Rewrite" url="/"  appendQueryString="true" />
                </rule>
            </rules>
        </rewrite>
    </system.webServer>
</configuration>

if(isset($_POST['form1']))
{
    try
    {


        $user=$_POST['username'];

        $pass=$_POST['password'];
        $email=$_POST['email'];
        $roll=$_POST['roll'];
        $class=$_POST['class'];



        if(empty($user)) throw new Exception("Name can not empty");
        if(empty($pass)) throw new Exception("Password can not empty");
        if(empty($email)) throw new Exception("Email can not empty");
        if(empty($roll)) throw new Exception("Roll can not empty");
        if(empty($class)) throw new Exception("Class can not empty");


        $statement=$db->prepare("show table status like 'tbl_std_info'");
        $statement->execute();
        $result=$statement->fetchAll();
        foreach($result as $row)
        $new_id=$row[10];


        $up_file=$_FILES["image"]["name"];

        $file_basename=substr($up_file, 0 , strripos($up_file, "."));
        $file_ext=substr($up_file, strripos($up_file, ".")); 
        $f1="$new_id".$file_ext;

        if(($file_ext!=".png")&&($file_ext!=".jpg")&&($file_ext!=".jpeg")&&($file_ext!=".gif"))
        {
            throw new Exception("Only jpg, png, jpeg or gif Logo are allow to upload / Empty Logo Field");
        }
        move_uploaded_file($_FILES["image"]["tmp_name"],"../std_photo/".$f1);


        $statement=$db->prepare("insert into tbl_std_info (username,image,password,email,roll,class) value (?,?,?,?,?,?)");

        $statement->execute(array($user,$f1,$pass,$email,$roll,$class));


        $success="Registration Successfully Completed";

        echo $success;
    }
    catch(Exception $e)
    {
        $msg=$e->getMessage();
    }
}

Answer:

• The browser will try to convert chucknorris into a hexadecimal value.
• Since c is the only valid hex character in chucknorris, the value turns into: c00c00000000(0 for all values that were invalid).
• The browser then divides the result into 3 groupds: Red = c00c, Green = 0000, Blue = 0000.
• Since valid hex values for html backgrounds only contain 2 digits for each color type (r, g, b), the last 2 digits are truncated from each group, leaving an rgb value of c00000 which is a brick-reddish toned color.

Forget using plt.title and place the text directly with plt.text. An over-exaggerated example is given below:

import pylab as plt

fig = plt.figure(figsize=(5,10))

figure_title = "Normal title"
ax1  = plt.subplot(1,2,1)

plt.title(figure_title, fontsize = 20)
plt.plot([1,2,3],[1,4,9])

figure_title = "Raised title"
ax2  = plt.subplot(1,2,2)

plt.text(0.5, 1.08, figure_title,
         horizontalalignment='center',
         fontsize=20,
         transform = ax2.transAxes)
plt.plot([1,2,3],[1,4,9])

plt.show()

There are no associative arrays in JavaScript. However, there are objects with named properties, so just don't initialise your "array" with new Array, then it becomes a generic object.

Html.Label - Just creates a label tag with whatever the string passed into the constructor is

Html.LabelFor - Creates a label for that specific property. This is strongly typed. By default, this will just do the name of the property (in the below example, it'll output MyProperty if that Display attribute wasn't there). Another benefit of this is you can set the display property in your model and that's what will be put here:

public class MyModel
{
    [Display(Name="My property title")
    public class MyProperty{get;set;}
}

In your view:

Html.LabelFor(x => x.MyProperty) //Outputs My property title

In the above, LabelFor will display <label for="MyProperty">My property title</label>. This works nicely so you can define in one place what the label for that property will be and have it show everywhere.

#include<boost/range/numeric.hpp>
int sum = boost::accumulate(vector, 0);

mysql> SHOW PROCESSLIST;
+-----+------+-----------------+------+---------+------+-------+---------------+
| Id  | User | Host            | db   | Command | Time | State | Info      |
+-----+------+-----------------+------+---------+------+-------+----------------+
| 143 | root | localhost:61179 | cds  | Query   |    0 | init  | SHOW PROCESSLIST |
| 192 | root | localhost:53793 | cds  | Sleep   |    4 |       | NULL      |
+-----+------+-----------------+------+---------+------+-------+----------------+
2 rows in set (0.00 sec)

mysql> KILL 192;
Query OK, 0 rows affected (0.00 sec)

USER 192 :

mysql> SELECT * FROM exept;
+----+
| id |
+----+
|  1 |
+----+
1 row in set (0.00 sec)

mysql> SELECT * FROM exept;
ERROR 2013 (HY000): Lost connection to MySQL server during query

Symbolic or soft link (files or directories, more flexible and self documenting)

#     Source                             Link
ln -s /home/jake/doc/test/2000/something /home/jake/xxx

Hard link (files only, less flexible and not self documenting)

#   Source                             Link
ln /home/jake/doc/test/2000/something /home/jake/xxx

More information: man ln

/home/jake/xxx is like a new directory. To avoid "is not a directory: No such file or directory" error, as @trlkly comment, use relative path in the target, that is, using the example:

1. cd /home/jake/
2. ln -s /home/jake/doc/test/2000/something xxx

You must use $lastId = $this->db->insert_id();

Issue is resolved after adding the listener setting on server.properties file located at config directory. listeners=PLAINTEXT://localhost(or your server):9092 Restart kafka after this change. Version used 2.11

Cool @derek-kromm, Your answer is accepted and correct, But I am wondering if we need to alter more than the column. Here is how we can do.

ALTER TABLE tbl_name 
ALTER COLUMN col_name TYPE varchar (11), 
ALTER COLUMN col_name2 TYPE varchar (11),
ALTER COLUMN col_name3 TYPE varchar (11);

Documentation

Cheers!! Read Simple Write Simple

If you backup a table in Oracle Database. You try the statement below.

CREATE TABLE name_table_bk
AS
SELECT *
  FROM name_table;

I am using Oracle Database 12c.

Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP occurs when a parent class reference is used to refer to a child class object. In this example that is written in Java, we have three type of vehicle. We create three different object and try to run their wheels method:

public class PolymorphismExample {

    public static abstract class Vehicle
    {
        public int wheels(){
            return 0;
        }
    }

    public static class Bike extends Vehicle
    {
        @Override
        public int wheels()
        {
            return 2;
        }
    }

    public static class Car extends Vehicle
    {
        @Override
        public int wheels()
        {
            return 4;
        }
    }

    public static class Truck extends Vehicle
    {
        @Override
        public int wheels()
        {
            return 18;
        }
    }

    public static void main(String[] args)
    {
        Vehicle bike = new Bike();
        Vehicle car = new Car();
        Vehicle truck = new Truck();

        System.out.println("Bike has "+bike.wheels()+" wheels");
        System.out.println("Car has "+car.wheels()+" wheels");
        System.out.println("Truck has "+truck.wheels()+" wheels");
    }

}

The result is:

For more information please visit https://github.com/m-vahidalizadeh/java_advanced/blob/master/src/files/PolymorphismExample.java. I hope it helps.

You can do this with make - with gnu make it is the -j flag (this will also help on a uniprocessor machine).

For example if you want 4 parallel jobs from make:

make -j 4

You can also run gcc in a pipe with

gcc -pipe

This will pipeline the compile stages, which will also help keep the cores busy.

If you have additional machines available too, you might check out distcc, which will farm compiles out to those as well.

 private void Initialize()
    {
        server = "localhost";
        database = "connectcsharptomysql";
        uid = "username";
        password = "password";
        string connectionString;
        connectionString = "SERVER=" + server + ";" + "DATABASE=" + 
        database + ";" + "U`enter code here`ID=" + uid + ";" + "PASSWORD=" + password + ";";

        connection = new MySqlConnection(connectionString);
    }

It's compiler dependent. That said, in general using " prioritizes headers in the current working directory over system headers. <> usually is used for system headers. From to the specification (Section 6.10.2):

A preprocessing directive of the form

  # include <h-char-sequence> new-line

searches a sequence of implementation-defined places for a header identified uniquely by the specified sequence between the < and > delimiters, and causes the replacement of that directive by the entire contents of the header. How the places are specified or the header identified is implementation-defined.

A preprocessing directive of the form

  # include "q-char-sequence" new-line

causes the replacement of that directive by the entire contents of the source file identified by the specified sequence between the " delimiters. The named source file is searched for in an implementation-defined manner. If this search is not supported, or if the search fails, the directive is reprocessed as if it read

  # include <h-char-sequence> new-line

with the identical contained sequence (including > characters, if any) from the original directive.

So on most compilers, using the "" first checks your local directory, and if it doesn't find a match then moves on to check the system paths. Using <> starts the search with system headers.

Consider the following servlet conf:

   <servlet>
        <servlet-name>NewServlet</servlet-name>
        <servlet-class>NewServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>NewServlet</servlet-name>
        <url-pattern>/NewServlet/*</url-pattern>
    </servlet-mapping>

Now, when I hit the URL http://localhost:8084/JSPTemp1/NewServlet/jhi, it will invoke NewServlet as it is mapped with the pattern described above.

Here:

getRequestURI() =  /JSPTemp1/NewServlet/jhi
getPathInfo() = /jhi

We have those ones:

• getPathInfo()

  returns
  a String, decoded by the web container, specifying extra path information that comes after the servlet path but before the query string in the request URL; or null if the URL does not have any extra path information

• getRequestURI()

  returns
  a String containing the part of the URL from the protocol name up to the query string

Here is a simpler method (hack) that gives you back the setdefaultencoding() function that was deleted from sys:

import sys
# sys.setdefaultencoding() does not exist, here!
reload(sys)  # Reload does the trick!
sys.setdefaultencoding('UTF8')

(Note for Python 3.4+: reload() is in the importlib library.)

This is not a safe thing to do, though: this is obviously a hack, since sys.setdefaultencoding() is purposely removed from sys when Python starts. Reenabling it and changing the default encoding can break code that relies on ASCII being the default (this code can be third-party, which would generally make fixing it impossible or dangerous).

Trimming white spaces in Swift 4

let strFirstName = txtFirstName.text?.trimmingCharacters(in: 
 CharacterSet.whitespaces)

Remove some of your textarea class like

<textarea name="Address" rows="3" class="input-text full-width" placeholder="Your Address" ></textarea>

To

<textarea name="Address" rows="3" class="full-width" placeholder="Your Address" ></textarea>

It's dependent on your template (Purchased Template). The developer has included some JavaScript to get the value from correct object on UI, but class like input-text just finds only $('input[type=text]'), that's why.

I was searching for days for this command.

This worked for me outside any session or somthing like this.

# you get an array = your tensor.eval(session=tf.compat.v1.Session())
an_array = a_tensor.eval(session=tf.compat.v1.Session())

https://kite.com/python/answers/how-to-convert-a-tensorflow-tensor-to-a-numpy-array-in-python

I stumble upon this question and it grabbed my interest. The accepted answer is completely correct, but I thought I do provide my findings at JVM byte code level to explain why the OP encounter the ClassCastException.

I have the code which is pretty much the same as OP's code:

public static <T> T convertInstanceOfObject(Object o) {
    try {
       return (T) o;
    } catch (ClassCastException e) {
        return null;
    }
}

public static void main(String[] args) {
    String k = convertInstanceOfObject(345435.34);
    System.out.println(k);
}

and the corresponding byte code is:

public static <T> T convertInstanceOfObject(java.lang.Object);
    Code:
       0: aload_0
       1: areturn
       2: astore_1
       3: aconst_null
       4: areturn
    Exception table:
       from    to  target type
           0     1     2   Class java/lang/ClassCastException

  public static void main(java.lang.String[]);
    Code:
       0: ldc2_w        #3                  // double 345435.34d
       3: invokestatic  #5                  // Method java/lang/Double.valueOf:(D)Ljava/lang/Double;
       6: invokestatic  #6                  // Method convertInstanceOfObject:(Ljava/lang/Object;)Ljava/lang/Object;
       9: checkcast     #7                  // class java/lang/String
      12: astore_1
      13: getstatic     #8                  // Field java/lang/System.out:Ljava/io/PrintStream;
      16: aload_1
      17: invokevirtual #9                  // Method java/io/PrintStream.println:(Ljava/lang/String;)V
      20: return

Notice that checkcast byte code instruction happens in the main method not the convertInstanceOfObject and convertInstanceOfObject method does not have any instruction that can throw ClassCastException. Because the main method does not catch the ClassCastException hence when you execute the main method you will get a ClassCastException and not the expectation of printing null.

Now I modify the code to the accepted answer:

public static <T> T convertInstanceOfObject(Object o, Class<T> clazz) {
        try {
            return clazz.cast(o);
        } catch (ClassCastException e) {
            return null;
        }
    }
    public static void main(String[] args) {
        String k = convertInstanceOfObject(345435.34, String.class);
        System.out.println(k);
    }

The corresponding byte code is:

public static <T> T convertInstanceOfObject(java.lang.Object, java.lang.Class<T>);
    Code:
       0: aload_1
       1: aload_0
       2: invokevirtual #2                  // Method java/lang/Class.cast:(Ljava/lang/Object;)Ljava/lang/Object;
       5: areturn
       6: astore_2
       7: aconst_null
       8: areturn
    Exception table:
       from    to  target type
           0     5     6   Class java/lang/ClassCastException

  public static void main(java.lang.String[]);
    Code:
       0: ldc2_w        #4                  // double 345435.34d
       3: invokestatic  #6                  // Method java/lang/Double.valueOf:(D)Ljava/lang/Double;
       6: ldc           #7                  // class java/lang/String
       8: invokestatic  #8                  // Method convertInstanceOfObject:(Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;
      11: checkcast     #7                  // class java/lang/String
      14: astore_1
      15: getstatic     #9                  // Field java/lang/System.out:Ljava/io/PrintStream;
      18: aload_1
      19: invokevirtual #10                 // Method java/io/PrintStream.println:(Ljava/lang/String;)V
      22: return

Notice that there is an invokevirtual instruction in the convertInstanceOfObject method that calls Class.cast() method which throws ClassCastException which will be catch by the catch(ClassCastException e) bock and return null; hence, "null" is printed to console without any exception.

Some of the webservices require you to place request data and metadata separately. For example a remote function may expect that the signed metadata string is included in a URI, while the data is posted in a HTTP-body.

The POST request may semantically look like this:

POST /?AuthId=YOURKEY&Action=WebServiceAction&Signature=rcLXfkPldrYm04 HTTP/1.1
Content-Type: text/tab-separated-values; charset=iso-8859-1
Content-Length: []
Host: webservices.domain.com
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding: identity
User-Agent: Mozilla/3.0 (compatible; Indy Library)

name    id
John    G12N
Sarah   J87M
Bob     N33Y

This approach logically combines QueryString and Body-Post using a single Content-Type which is a "parsing-instruction" for a web-server.

Please note: HTTP/1.1 is wrapped with the #32 (space) on the left and with #10 (Line feed) on the right.

Just a shot in the dark(since you did not share the compiler initialization code with us): the way you retrieve the compiler causes the issue. Point your JRE to be inside the JDK as unlike jdk, jre does not provide any tools hence, results in NPE.

To get the content of a directory you can use

$files = Get-ChildItem "C:\Users\gerhardl\Documents\My Received Files\"

Then you can loop over this variable as well:

for ($i=0; $i -lt $files.Count; $i++) {
    $outfile = $files[$i].FullName + "out" 
    Get-Content $files[$i].FullName | Where-Object { ($_ -match 'step4' -or $_ -match 'step9') } | Set-Content $outfile
}

An even easier way to put this is the foreach loop (thanks to @Soapy and @MarkSchultheiss):

foreach ($f in $files){
    $outfile = $f.FullName + "out" 
    Get-Content $f.FullName | Where-Object { ($_ -match 'step4' -or $_ -match 'step9') } | Set-Content $outfile
}

If you want a way to do this globally without worrying about the configuration of your ObjectMapper, you can create your own annotation:

@Target({ElementType.ANNOTATION_TYPE, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@JacksonAnnotationsInside
@JsonAutoDetect(
        getterVisibility = JsonAutoDetect.Visibility.NONE, isGetterVisibility = JsonAutoDetect.Visibility.NONE,
        setterVisibility = JsonAutoDetect.Visibility.NONE, fieldVisibility = JsonAutoDetect.Visibility.NONE,
        creatorVisibility = JsonAutoDetect.Visibility.NONE
)
public @interface JsonExplicit {
}

Now you just have to annotate your classes with @JsonExplicit and you're good to go!

Also make sure to edit the above call to @JsonAutoDetect to make sure you have the values set to what works with your program.

Credit to https://stackoverflow.com/a/13408807 for helping me find out about @JacksonAnnotationsInside

Using river can present issues when your operation scales up. River will use a ton of memory when under heavy operation. I recommend implementing your own elasticsearch models, or if you're using mongoose you can build your elasticsearch models right into that or use mongoosastic which essentially does this for you.

Another disadvantage to Mongodb River is that you'll be stuck using mongodb 2.4.x branch, and ElasticSearch 0.90.x. You'll start to find that you're missing out on a lot of really nice features, and the mongodb river project just doesn't produce a usable product fast enough to keep stable. That said Mongodb River is definitely not something I'd go into production with. It's posed more problems than its worth. It will randomly drop write under heavy load, it will consume lots of memory, and there's no setting to cap that. Additionally, river doesn't update in realtime, it reads oplogs from mongodb, and this can delay updates for as long as 5 minutes in my experience.

We recently had to rewrite a large portion of our project, because its a weekly occurrence that something goes wrong with ElasticSearch. We had even gone as far as to hire a Dev Ops consultant, who also agrees that its best to move away from River.

UPDATE: Elasticsearch-mongodb-river now supports ES v1.4.0 and mongodb v2.6.x. However, you'll still likely run into performance problems on heavy insert/update operations as this plugin will try to read mongodb's oplogs to sync. If there are a lot of operations since the lock(or latch rather) unlocks, you'll notice extremely high memory usage on your elasticsearch server. If you plan on having a large operation, river is not a good option. The developers of ElasticSearch still recommend you to manage your own indexes by communicating directly with their API using the client library for your language, rather than using river. This isn't really the purpose of river. Twitter-river is a great example of how river should be used. Its essentially a great way to source data from outside sources, but not very reliable for high traffic or internal use.

Also consider that mongodb-river falls behind in version, as its not maintained by ElasticSearch Organization, its maintained by a thirdparty. Development was stuck on v0.90 branch for a long time after the release of v1.0, and when a version for v1.0 was released it wasn't stable until elasticsearch released v1.3.0. Mongodb versions also fall behind. You may find yourself in a tight spot when you're looking to move to a later version of each, especially with ElasticSearch under such heavy development, with many very anticipated features on the way. Staying up on the latest ElasticSearch has been very important as we rely heavily on constantly improving our search functionality as its a core part of our product.

All in all you'll likely get a better product if you do it yourself. Its not that difficult. Its just another database to manage in your code, and it can easily be dropped in to your existing models without major refactoring.

It's also important to realize that simply moving the program break pointer around with brk and sbrk doesn't actually allocate the memory, it just sets up the address space. On Linux, for example, the memory will be "backed" by actual physical pages when that address range is accessed, which will result in a page fault, and will eventually lead to the kernel calling into the page allocator to get a backing page.

Using jQuery you can use contents(). For example:

var inside = $('#one').contents();

Next pattern is used in K-9 mail:

public static final Pattern EMAIL_ADDRESS_PATTERN = Pattern.compile(
          "[a-zA-Z0-9\\+\\.\\_\\%\\-\\+]{1,256}" +
          "\\@" +
          "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,64}" +
          "(" +
          "\\." +
          "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,25}" +
          ")+"
      );

You can use function

private boolean checkEmail(String email) {
        return EMAIL_ADDRESS_PATTERN.matcher(email).matches();
}

It is a well-established fact that abstract class can not be instantiated as everyone answered.

When the program defines anonymous class, the compiler actually creates a new class with different name (has the pattern EnclosedClassName$n where n is the anonymous class number)

So if you decompile this Java class you will find the code as below:

my.class

abstract class my { 
    public void mymethod() 
    { 
        System.out.print("Abstract"); 
    }
} 

poly$1.class (the generated class of the "anonymous class")

class poly$1 extends my 
{
} 

ploly.cass

public class poly extends my
{
    public static void main(String[] a)
    {
        my m = new poly.1(); // instance of poly.1 class NOT the abstract my class

        m.mymethod();
    }
}

I solved this problem by adding user settings.

in nginx.conf

worker_processes 4;
user username;

change the 'username' with linux user name.

Actually, drop rows 0 and 1 only requires (any observations containing matched A and C is kept.):

In [335]:

df['AC']=df.A+df.C
In [336]:

print df.drop_duplicates('C', take_last=True) #this dataset is a special case, in general, one may need to first drop_duplicates by 'c' and then by 'a'.
     A  B  C    AC
2  foo  1  B  fooB
3  bar  1  A  barA

[2 rows x 4 columns]

But I suspect what you really want is this (one observation containing matched A and C is kept.):

In [337]:

print df.drop_duplicates('AC')
     A  B  C    AC
0  foo  0  A  fooA
2  foo  1  B  fooB
3  bar  1  A  barA

[3 rows x 4 columns]

Edit:

Now it is much clearer, therefore:

In [352]:
DG=df.groupby(['A', 'C'])   
print pd.concat([DG.get_group(item) for item, value in DG.groups.items() if len(value)==1])
     A  B  C
2  foo  1  B
3  bar  1  A

[2 rows x 3 columns]

Add these lines of code in your htaccess file. I hope it will solve your problem.

<IfModule mod_php5.c>
php_value max_execution_time 259200
</IfModule>

All the answers here are as expected, programmer centric, however what happens if your company uses revision control outside of source code? There are plenty of documents which aren't source code which benefit from version control, and should live close to code and not in another CMS. Most programmers don't work in isolation - we work for companies as part of a team.

With that in mind, compare ease of use, in both client tooling and training, between Subversion and git. I can't see a scenario where any distributed revision control system is going to be easier to use or explain to a non-programmer. I'd love to be proven wrong, because then I'd be able to evaluate git and actually have a hope of it being accepted by people who need version control who aren't programmers.

Even then, if asked by management why we should move from a centralised to distributed revision control system, I'd be hard pressed to give an honest answer, because we don't need it.

Disclaimer: I became interested in Subversion early on (around v0.29) so obviously I'm biased, but the companies I've worked for since that time are benefiting from my enthusiasm because I've encouraged and supported its use. I suspect this is how it happens with most software companies. With so many programmers jumping on the git bandwagon, I wonder how many companies are going to miss out on the benefits of using version control outside of source code? Even if you have separate systems for different teams, you're missing out on some of the benefits, such as (unified) issue tracking integration, whilst increasing maintenance, hardware and training requirements.

The javax.servlet dependency is missing in your pom.xml. Add the following to the dependencies-Node:

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.0.1</version>
    <scope>provided</scope>
</dependency>

As for front-end developer many time we are dealing with the forms in which we have to handle the dropdowns and we have to use the value of selected dropdown to perform some action or the send the value on the Server, it's very simple you have to write the simple dropdown in HTML just put the one onChange method for the selection in the dropdown whenever user change the value of dropdown set that value to state so you can easily access it in AvFeaturedPlayList 1 remember you will always get the result as option value and not the dropdown text which is displayed on the screen

import React, { Component } from "react";
import { Server } from "net";

class InlineStyle extends Component {
  constructor(props) {
    super(props);
    this.state = {
      selectValue: ""
    };

    this.handleDropdownChange = this.handleDropdownChange.bind(this);
  }

  handleDropdownChange(e) {
    this.setState({ selectValue: e.target.value });
  }

  render() {
    return (
      <div>
        <div>
          <div>
            <select id="dropdown" onChange={this.handleDropdownChange}>
              <option value="N/A">N/A</option>
              <option value="1">1</option>
              <option value="2">2</option>
              <option value="3">3</option>
              <option value="4">4</option>
            </select>
          </div>

          <div>Selected value is : {this.state.selectValue}</div>
        </div>
      </div>
    );
  }
}
export default InlineStyle;

(apply on Mac, and probably other Unixes)

Actually there is a problem with the wc approach: it does not count the last line if it does not terminate with the end of line symbol.

Use this instead

nbLines=$(cat -n file.txt | tail -n 1 | cut -f1 | xargs)

or even better (thanks gniourf_gniourf):

nblines=$(grep -c '' file.txt)

Note: The awk approach by chilicuil also works.

foreach($array as $k => $v)

Where $k is the key and $v is the value

Or if you just need the keys use array_keys()

When you have a Swift code that references different namespace with @objc, be sure to use the Objective-C class name:

@objc(NamespacedSomeViewController)
class SomeViewController: UIViewController {
....

In this case, you need to use NamespacedSomeViewController in the IB.

It is actually very easy. But there is no way you can achieve it directly. You need to select a service side technology. You can use anything for this part. And this is what we call a RESTful API or a SOAP API. It depends on you what to select. I have done many project with both. I would prefer REST. So what will happen you will have some scripts in your web server, and you know the URLs. For example we need to make a user registration. And for this we have

mydomain.com/v1/userregister.php

Now from the android side you will send an HTTP request to the above URL. And the above URL will handle the User Registration and will give you a response that whether the operation succeed or not.

For a complete detailed explanation of the above concept. You can visit the following link.

**Android MySQL Tutorial to Perform CRUD Operation**

@Masci is correct, but in case you're using C (and the gcc compiler) take in account that this doesn't work:

gcc -ldl dlopentest.c

But this does:

gcc dlopentest.c -ldl

Took me a bit to figure out...

May be it's obvious for expert users of MYSQL but I wasted some time while trying to figure out default value would not export functions. So I thought to mention here that --routines param needs to be set to true to make it work.

mysqldump --routines=true -u <user> my_database > my_database.sql

This process preserve history, but is little workarround:

# make branchs to new files
$: git mv arquivos && git commit

# in original branch, remove original files
$: git rm arquivos && git commit

# do merge and fix conflicts
$: git merge branch-copia-arquivos

# back to original branch and revert commit removing files
$: git revert commit

for Xcode 8:

What I do is run sudo du -khd 1 in the Terminal to see my file system's storage amounts for each folder in simple text, then drill up/down into where the huge GB are hiding using the cd command.

Ultimately you'll find the Users//Library/Developer/CoreSimulator/Devices folder where you can have little concern about deleting all those "devices" using iOS versions you no longer need. It's also safe to just delete them all, but keep in mind you'll lose data that's written to the device like sqlite files you may want to use as a backup version.

I once saved over 50GB doing this since I did so much testing on older iOS versions.

Yes, you can use numpy for that.

import numpy as np
a = arange(3,dtype=float)

a[0] = np.nan
a[1] = np.inf
a[2] = -np.inf

a # is now [nan,inf,-inf]

np.isnan(a[0]) # True
np.isinf(a[1]) # True
np.isinf(a[2]) # True

Not using iframes puts you in a world of handling #document security issues with cross domain and links firing unexpected ways that was not intended for originally, do you really need bad Advertisements?

You can use jquery .load function to send the page to whatever html element you want to target, assuming your not getting this from another domain.

You can use javascript .innerHTML value to set and to rewrite the element with whatever you want, but if you add another file you might be writing against 2 documents in 1... like a in another

iframes are old, another way we can add "src" into the html alone without any use for javascript. But it's old, prehistoric, and just plain OLD! Frameset makes it worse because I can put #document in those to handle multiple html files. An Old way people created navigation menu's Long and before people had FLIP phones.

1.) Yes you will have to work in Javascript if you do NOT want to use an Iframe.

2.) There is a good hack in which you can set the domain to equal each other without having to set server stuff around. Means you will have to have edit capabilities of the documents.

3.) javascript window.document is limited to the iframe itself and can NOT go above the iframe if you want to grab something through the DOM itself. Because it treats it like a separate tab, it also defines it in another document object model.

You can also use this, it's simpler. The only thing you need to set is "YourDataBaseName".

  <connectionStrings>
    <add name="ConnStringDb1" connectionString="Data Source=localhost;Initial Catalog=YourDataBaseName;Integrated Security=True;" providerName="System.Data.SqlClient" />
  </connectionStrings>

Where to place the connection string

<?xml version='1.0' encoding='utf-8'?>  
  <configuration>  
    <connectionStrings>  
      <clear />  
      <add name="Name"   
       providerName="System.Data.ProviderName"   
       connectionString="Valid Connection String;" />  
    </connectionStrings>  
  </configuration>  

In addition to the answers above the command below will also work. I post it because it makes more sense to me. In each case it is 'using x-value-column: y-value-column'

plot 'ls.dat' using 1:2, 'ls.dat' using 1:3, 'ls.dat' using 1:4 

note that the command above assumes that you have a file named ls.dat with tab separated columns of data where column 1 is x, column 2 is y1, column 3 is y2 and column 4 is y3.

A hack to give the appearance of margins between table rows is to give them a border the same color as the background. This is useful when styling a 3rd party theme where you can't change the html markup. Eg:

tr{ 
    border: 5px solid white;
}

Benefits of Emacs

• Emacs has both non-modal interface (by default) and modal one (e.g. it can emulate vim and vi through Evil, Viper, or Vimpulse).

• One of the most ported computer programs. It runs in text mode and under graphical user interfaces on a wide variety of operating systems, including most Unix-like systems (Linux, the various BSDs, Solaris, AIX, IRIX, macOSetc.), MS-DOS, Microsoft Windows, AmigaOS, and OpenVMS. Unix systems, both free and proprietary, frequently provide Emacs bundled with the operating system.

• Emacs server architecture allows multiple clients to attach to the same Emacs instance and share the buffer list, kill ring, undo history and other state.

• Pervasive online help system with keybindings, functions and commands documented on the fly.

• Extensible and customizable Lisp programming language variant (Emacs Lisp), with features that include:

• A powerful and extensible file manager (dired), integrated debugger, and a large set of development and other tools.

• Having every command be an Emacs Lisp function enables commands to DWIM (Do What I Mean) by programmatically responding to past actions and document state. For example, a switch-or-split-window command could switch to another window if one exists, or create one if needed. This cuts down on the number of keystrokes and commands a user must remember.

• "An OS inside an OS". Emacs Lisp enables Emacs to be programmed far beyond editing features. Even a base install contains several dozen applications, including two web browsers, news readers, several mail agents, four IRC clients, a version of ELIZA, and a variety of games. All of these applications are available anywhere Emacs runs, with the same user interface and functionality. Starting with version 24, Emacs includes a package manager, making it easy to install additional applications including alternate web browsers, EMMS (Emacs Multimedia System), and more. Also available are numerous packages for programming, including some targeted at specific language/library combinations or coding styles.

Benefits of vi-like editors

• Edit commands are composable
• Vi has a modal interface (which Emacs can emulate)
• Historically, vi loads faster than Emacs.
• While deeply associated with UNIX tradition, it runs on all systems that can implement the standard C library, including UNIX, Linux, AmigaOS, DOS, Windows, Mac, BeOS, OpenVMS, IRIX, AIX, HP-UX, BSD and POSIX-compliant systems.
• Extensible and customizable through Vim script or APIs for interpreted languages such as Python, Ruby, Perl, and Lua
• Ubiquitous. Essentially all Unix and Unix-like systems come with vi (or a variant) built-in. Vi (and ex, but not vim) is specified in the POSIX standard.
• System rescue environments, embedded systems (notably those with busybox) and other constrained environments often include vi, but not emacs.

Source: https://en.wikipedia.org/wiki/Editor_war

The angular.forEach loop can't break on a condition match.

My personal advice is to use a NATIVE FOR loop instead of angular.forEach.

The NATIVE FOR loop is around 90% faster then other for loops.

USE FOR loop IN ANGULAR:

var numbers = [0, 1, 2, 3, 4, 5];

for (var i = 0, len = numbers.length; i < len; i++) {
  if (numbers[i] === 1) {
    console.log('Loop is going to break.'); 
    break;
  }
  console.log('Loop will continue.');
}

Googling gives me this:

Command A & Command B

Execute Command A, then execute Command B (no evaluation of anything)

Command A | Command B

Execute Command A, and redirect all its output into the input of Command B

Command A && Command B

Execute Command A, evaluate the errorlevel after running and if the exit code (errorlevel) is 0, only then execute Command B

Command A || Command B

Execute Command A, evaluate the exit code of this command and if it's anything but 0, only then execute Command B

tl;dr the "standards" are a hodge-podge mess; it depends who you ask!

Overall, there appears to be no MIME type image/jpg. Yet, in practice, nearly all software handles image files named "*.jpg" just fine.
This particular topic is confusing because the varying association of file name extension associated to a MIME type depends which organization created the table of file name extensions to MIME types. In other words, file name extension .jpg could be many different things.

For example, here are three "complete lists" and one RFC that with varying JPEG Image format file name extensions and the associated MIME types.

• sitepoint.com mime-types-complete-list (archived)
  • .jfif, .jfif-tbnl, .jpe, .jpeg, .jpg ? image/jpeg
  • .jfif, .jpe, .jpeg, .jpg ? image/pjpeg
• freeformatter.com mime-types (archived)
  • .jpeg, .jpg ? image/jpeg
  • .jpeg, .jpg ? image/x-citrix-jpeg
  • .pjpeg ? image/pjpeg
• IANA "Media Types" (formerly known as MIME types) lists (archived)
  (this document lists "names", not "file name extensions")
  • jpg not mentioned
  • jpeg ? see RFC 2045 (no mention), see RFC 2046 ? image/jpeg¹³
  • JPEG ? video/JPEG
  • jpeg2000 ? video/jpeg2000
  • jpm ? image/jpm (JPEG 2000)
  • jpx ? image/jpx (JPEG 2000)
  • vnd.sealedmedia.softseal.jpg ? image/vnd.sealedmedia.softseal.jpg
• RFC 3745 MIME Type Registrations for JPEG 2000 (ISO/IEC 15444)
  • .jpg file extension not mentioned
  • .jpeg file extension not mentioned
  • .jp2, .jpg2 ? image/jp2 (JPEG 2000)⁹
  • .jpf, .jpx ? image/jpx (JPEG 2000 ISO-JPEG2000-2 encoded image data)¹⁰
  • .mj2, .mjp2 ? video/mj2 (Motion JPEG 2000)¹¹
  • .jpm, .jpgm ? image/jpm (JPEG 2000 profiles and extensions)¹²

These "complete lists" and RFC do not have MIME type image/jpg! But for MIME type image/jpeg some lists do have varying file name extensions (.jpeg, .jpg, …). Other lists do not mention image/jpeg.

Also, there are different types of JPEG Image formats (e.g. Progressive JPEG Image format, JPEG 2000, etcetera) and "JPEG Extensions" that may or may not overlap in file name extension and declared MIME type.

Another confusing thing is RFC 3745 does not appear to match IANA Media Types yet the same RFC is supposed to inform the IANA Media Types document. For example, in RFC 3745 .jpf is preferred file extension for image/jpx but in IANA Media Types the name jpf is not present (and that IANA document references RFC 3745!).

Another confusing thing is IANA Media Types lists "names" but does not list "file name extensions". This is on purpose, but confuses the endeavor of mapping file name extensions to MIME types.

Another confusing thing: is it "mime", or "MIME", or "MIME type", or "mime type", or "mime/type", or "media type"?

The most official seeming document by IANA is surprisingly inadequate. No MIME type is registered for file extension .jpg yet there exists the odd vnd.sealedmedia.softseal.jpg. File extension.JPEG is only known as a video type while file extension .jpeg is an image type (when did lowercase and uppercase letters start mattering!?). At the same time, jpeg2000 is type video yet RFC 3745 considers JPEG 2000 an image type! The IANA list seems to cater to company-specific jpeg formats (e.g. vnd.sealedmedia.softseal.jpg).

Because of the prior confusions, it is difficult to find an industry-accepted canonical document that maps file name extensions to MIME types, particularly for the JPEG Image File Format.

Related question "List of ALL MimeTypes on the Planet, mapped to File Extensions?".

I would always recommend going to the authoritative source when trying to understand the meaning and purpose of HTTP headers.

The "Host" header field in a request provides the host and port
information from the target URI, enabling the origin server to
distinguish among resources while servicing requests for multiple
host names on a single IP address.

https://tools.ietf.org/html/rfc7230#section-5.4

You are missing setting what field is the Text and Value in the SelectList itself. That is why it does a .ToString() on each object in the list. You could think that given it is a list of SelectListItem it should be smart enough to detect this... but it is not.

u.UserTypeOptions = new SelectList(
    new List<SelectListItem>
    {
        new SelectListItem { Selected = true, Text = string.Empty, Value = "-1"},
        new SelectListItem { Selected = false, Text = "Homeowner", Value = ((int)UserType.Homeowner).ToString()},
        new SelectListItem { Selected = false, Text = "Contractor", Value = ((int)UserType.Contractor).ToString()},
    }, "Value" , "Text", 1);

BTW, you can use a list of array of any type... and then just set the name of the properties that will act as Text and Value.

I think it is better to do it like this:

u.UserTypeOptions = new SelectList(
    new List<SelectListItem>
    {
        new SelectListItem { Text = "Homeowner", Value = ((int)UserType.Homeowner).ToString()},
        new SelectListItem { Text = "Contractor", Value = ((int)UserType.Contractor).ToString()},
    }, "Value" , "Text");

I removed the -1 item, and the setting of each items selected true/false.

Then, in your view:

@Html.DropDownListFor(m => m.UserType, Model.UserTypeOptions, "Select one")

This way, if you set the "Select one" item, and you don't set one item as selected in the SelectList, the UserType will be null (the UserType need to be int? ).

If you need to set one of the SelectList items as selected, you can use:

u.UserTypeOptions = new SelectList(options, "Value" , "Text", userIdToBeSelected);

An asynchronous version of extension function:

    public static async Task<WebResponse> GetResponseAsyncNoEx(this WebRequest request)
    {
        try
        {
            return await request.GetResponseAsync();
        }
        catch(WebException ex)
        {
            return ex.Response;
        }
    }

1. Go to this address: https://console.developers.google.com/apis
2. Create new project and Create Credentials (API key)
3. Click on "Library"
4. Click on any API that you want
5. Click on "Enable"
6. Click on "Credentials" > "Edit Key"
7. Under "Application restrictions", select "HTTP referrers (web sites)"
8. Under "Website restrictions", Click on "ADD AN ITEM"
9. Type your website address (or "localhost", "127.0.0.1", "localhost:port" etc for local tests) in the text field and press ENTER to add it to the list
10. SAVE and Use your key in your project

var newTH = document.createElement('th');
newTH.onclick = function() {
      //Your code here
}

Remove star from COPY, with this Dockerfile:

FROM ubuntu
COPY files/ /files/
RUN ls -la /files/*

Structure is there:

$ docker build .
Sending build context to Docker daemon 5.632 kB
Sending build context to Docker daemon 
Step 0 : FROM ubuntu
 ---> d0955f21bf24
Step 1 : COPY files/ /files/
 ---> 5cc4ae8708a6
Removing intermediate container c6f7f7ec8ccf
Step 2 : RUN ls -la /files/*
 ---> Running in 08ab9a1e042f
/files/folder1:
total 8
drwxr-xr-x 2 root root 4096 May 13 16:04 .
drwxr-xr-x 4 root root 4096 May 13 16:05 ..
-rw-r--r-- 1 root root    0 May 13 16:04 file1
-rw-r--r-- 1 root root    0 May 13 16:04 file2

/files/folder2:
total 8
drwxr-xr-x 2 root root 4096 May 13 16:04 .
drwxr-xr-x 4 root root 4096 May 13 16:05 ..
-rw-r--r-- 1 root root    0 May 13 16:04 file1
-rw-r--r-- 1 root root    0 May 13 16:04 file2
 ---> 03ff0a5d0e4b
Removing intermediate container 08ab9a1e042f
Successfully built 03ff0a5d0e4b

c.Request["AP"] will read posted values. Also you need to use a submit button to post the form:

<input type="submit" value="Submit" />

instead of

<input type=button value="Submit" />

You will not have access to your real sd card in emulator. You will have to follow the steps in this tutorial to direct your emulator to a directory on your development environment acting as your SD card.

For "100% of the browser window", if you mean this literally, you should use fixed positioning. The top, bottom, right, and left properties are then used to offset the divs edges from the respective edges of the viewport:

#nav, #content{position:fixed;top:0px;bottom:0px;}
#nav{left:0px;right:235px;}
#content{left:235px;right:0px}

This will set up a screen with the left 235 pixels devoted to the nav, and the right rest of the screen to content.

Note, however, you won't be able to scroll the whole screen at once. Though you can set it to scroll either pane individually, by applying overflow:auto to either div.

Note also: fixed positioning is not supported in IE6 or earlier.

This isn't exactly what you're looking for, but it would automatically select the "active" file in the Solution Explorer:

Tools-->Options-->Projects and Solutions-->Track Active Item in Solution Explorer.

This would print the files in those directories line by line.

array=(ww/* ee/* qq/*)
printf "%s\n" "${array[@]}"

You check if it's null in C# like this:

if(MyObject != null) {
  //do something
}

If you want to check against default (tough to understand the question on the info given) check:

if(MyObject != default(MyObject)) {
 //do something
}

As I wrote in my comment, the solution to your problem is to write the following:

Set hyperLinkText = hprlink.Range

Set is needed because TextRange is a class, so hyperLinkText is an object; as such, if you want to assign it, you need to make it point to the actual object that you need.

You can just unpack both sets into one like this:

>>> set_1 = {1, 2, 3, 4}
>>> set_2 = {3, 4, 5, 6}
>>> union = {*set_1, *set_2}
>>> union
{1, 2, 3, 4, 5, 6}

The * unpacks the set. Unpacking is where an iterable (e.g. a set or list) is represented as every item it yields. This means the above example simplifies to {1, 2, 3, 4, 3, 4, 5, 6} which then simplifies to {1, 2, 3, 4, 5, 6} because the set can only contain unique items.

Android Studio 1.2.2 has moved the setting into the General subfolder of Editor settings.

You can encapsulate the thread function(download) and the needed parameter(s)(filename) in a class and use the ThreadStart delegate to execute the thread function.

public class Download
{
    string _filename;

    Download(string filename)
    {
       _filename = filename;
    }

    public void download(string filename)
    {
       //download code
    }
}

Download = new Download(filename);
Thread thread = new Thread(new ThreadStart(Download.download);

I had a situation where I needed to compare each row of a table with the next row to it, (next here is relative to my problem specification) in the example next row is specified using the order by clause inside the row_number() function.

so I wrote this:

DECLARE @T TABLE (col1 nvarchar(50));

insert into @T VALUES ('A'),('B'),('C'),('D'),('E')

select I1.col1 Instance_One_Col, I2.col1 Instance_Two_Col  from (
 select col1,row_number() over (order by col1) as row_num
 FROM @T
) AS I1
left join (
 select col1,row_number() over (order by col1) as row_num
 FROM @T
) AS I2 on I1.row_num = I2.row_num - 1

after that I can compare each row to the next one as I need

You can just use the normal setTimeout method in JavaScript.

ie...

setTimeout( function(){ 
    // Do something after 1 second 
  }  , 1000 );

In your example, you might want to use showStickySuccessToast directly.

For Angular9+, according to this, you can use:

.mat-select-panel {
    background: red;
    ....
}

Demo

1. Use ::ng-deep:

Use the /deep/ shadow-piercing descendant combinator to force a style down through the child component tree into all the child component views. The /deep/ combinator works to any depth of nested components, and it applies to both the view children and content children of the component. Use /deep/, >>> and ::ng-deep only with emulated view encapsulation. Emulated is the default and most commonly used view encapsulation. For more information, see the Controlling view encapsulation section. The shadow-piercing descendant combinator is deprecated and support is being removed from major browsers and tools. As such we plan to drop support in Angular (for all 3 of /deep/, >>> and ::ng-deep). Until then ::ng-deep should be preferred for a broader compatibility with the tools.

CSS:

::ng-deep .mat-select-content{
    width:2000px;
    background-color: red;
    font-size: 10px;   
}

DEMO

2. Use ViewEncapsulation

... component CSS styles are encapsulated into the component's view and don't affect the rest of the application. To control how this encapsulation happens on a per component basis, you can set the view encapsulation mode in the component metadata. Choose from the following modes: .... None means that Angular does no view encapsulation. Angular adds the CSS to the global styles. The scoping rules, isolations, and protections discussed earlier don't apply. This is essentially the same as pasting the component's styles into the HTML.

None value is what you will need to break the encapsulation and set material style from your component. So can set on the component's selector:

Typscript:

  import {ViewEncapsulation } from '@angular/core';
  ....
  @Component({
        ....
        encapsulation: ViewEncapsulation.None
 })  

CSS

.mat-select-content{
    width:2000px;
    background-color: red;
    font-size: 10px;
}

DEMO

3. Set class style in style.css

This time you have to 'force' styles with !important too.

style.css

 .mat-select-content{
   width:2000px !important;
   background-color: red !important;
   font-size: 10px !important;
 } 

DEMO

4. Use inline style

<mat-option style="width:2000px; background-color: red; font-size: 10px;" ...>

DEMO

Have a look at the class

org.joda.time.DateTime

This allows you to do things like:

old = new DateTime();
new = old.plusSeconds(500000);
System.out.println("Hours: " + (new.Hours() - old.Hours()));

However, your solution probably can be simpler:

You need to work out how many seconds in a day, divide your input by the result to get the days, and subtract it from the input to keep the remainder. You then need to work out how many hours in the remainder, followed by the minutes, and the final remainder is the seconds.

This is the analysis done for you, now you can focus on the code.

You need to ask what s/he means by "no hard coding", generally it means pass parameters, rather than fixing the input values. There are many ways to do this, depending on how you run your code. Properties are a common way in java.

HashMaps allow one null key and null values. They are not synchronized, which increases efficiency. If it is required, you can make them synchronized using Collections.SynchronizedMap()

Hashtables don't allow null keys and are synchronized.

After your app status changes to 'Ready for Sale' you will get official mail from Apple. The mail itself states that it might take 24 hours before your App is available on AppStore. If it takes more than days then contact Apple.

Refer below screenshot.

# Possible values for the Options directive are "None", "All",
# or any combination of:
#   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
#
# Note that "MultiViews" must be named *explicitly* --- "Options All"
# doesn't give it to you.
#
# The Options directive is both complicated and important.  Please see
# http://httpd.apache.org/docs/2.2/mod/core.html#options
# for more information.
#
Options Indexes FollowSymLinks Includes ExecCGI

#
# AllowOverride controls what directives may be placed in .htaccess files.
# It can be "All", "None", or any combination of the keywords:
#   Options FileInfo AuthConfig Limit
#
AllowOverride All

#
# Controls who can get stuff from this server.
#
Require all granted

Write above code inside following tags < Directory "c:\projects" > < / Directory > c:(you can add any directory d: e:) is drive where you have created your project folder.

Alias /projects "c:\projects"

Now you can access the pr0jects directory on your browser :

localhost/projects/

Example for wait() and notifyall() in Threading.

A synchronized static array list is used as resource and wait() method is called if the array list is empty. notify() method is invoked once a element is added for the array list.

public class PrinterResource extends Thread{

//resource
public static List<String> arrayList = new ArrayList<String>();

public void addElement(String a){
    //System.out.println("Add element method "+this.getName());
    synchronized (arrayList) {
        arrayList.add(a);
        arrayList.notifyAll();
    }
}

public void removeElement(){
    //System.out.println("Remove element method  "+this.getName());
    synchronized (arrayList) {
        if(arrayList.size() == 0){
            try {
                arrayList.wait();
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }else{
            arrayList.remove(0);
        }
    }
}

public void run(){
    System.out.println("Thread name -- "+this.getName());
    if(!this.getName().equalsIgnoreCase("p4")){
        this.removeElement();
    }
    this.addElement("threads");

}

public static void main(String[] args) {
    PrinterResource p1 = new PrinterResource();
    p1.setName("p1");
    p1.start();

    PrinterResource p2 = new PrinterResource();
    p2.setName("p2");
    p2.start();


    PrinterResource p3 = new PrinterResource();
    p3.setName("p3");
    p3.start();


    PrinterResource p4 = new PrinterResource();
    p4.setName("p4");
    p4.start();     

    try{
        p1.join();
        p2.join();
        p3.join();
        p4.join();
    }catch(InterruptedException e){
        e.printStackTrace();
    }
    System.out.println("Final size of arraylist  "+arrayList.size());
   }
}

I was encountering the following error: The requested package my-foo/bar could not be found in any version, there may be a typo in the package name.

If you're forking another repo to make your own changes you will end up with a new repository.

E.g:

https://github.com/foo/bar.git
=>
https://github.com/my-foo/bar.git

The new url will need to go into your repositories section of your composer.json.

Remember if you want refer to your fork as my-foo/bar in your require section, you will have to rename the package in the composer.json file inside of your new repo.

{
    "name":         "foo/bar",

=>

{
    "name":         "my-foo/bar",

If you've just forked the easiest way to do this is edit it right inside github.

Convert hex to binary

I have ABC123EFFF.

I want to have 001010101111000001001000111110111111111111 (i.e. binary repr. with, say, 42 digits and leading zeroes).

Short answer:

The new f-strings in Python 3.6 allow you to do this using very terse syntax:

>>> f'{0xABC123EFFF:0>42b}'
'001010101111000001001000111110111111111111'

or to break that up with the semantics:

>>> number, pad, rjust, size, kind = 0xABC123EFFF, '0', '>', 42, 'b'
>>> f'{number:{pad}{rjust}{size}{kind}}'
'001010101111000001001000111110111111111111'

Long answer:

What you are actually saying is that you have a value in a hexadecimal representation, and you want to represent an equivalent value in binary.

The value of equivalence is an integer. But you may begin with a string, and to view in binary, you must end with a string.

Convert hex to binary, 42 digits and leading zeros?

We have several direct ways to accomplish this goal, without hacks using slices.

First, before we can do any binary manipulation at all, convert to int (I presume this is in a string format, not as a literal):

>>> integer = int('ABC123EFFF', 16)
>>> integer
737679765503

alternatively we could use an integer literal as expressed in hexadecimal form:

>>> integer = 0xABC123EFFF
>>> integer
737679765503

Now we need to express our integer in a binary representation.

Use the builtin function, format

Then pass to format:

>>> format(integer, '0>42b')
'001010101111000001001000111110111111111111'

This uses the formatting specification's mini-language.

To break that down, here's the grammar form of it:

[[fill]align][sign][#][0][width][,][.precision][type]

To make that into a specification for our needs, we just exclude the things we don't need:

>>> spec = '{fill}{align}{width}{type}'.format(fill='0', align='>', width=42, type='b')
>>> spec
'0>42b'

and just pass that to format

>>> bin_representation = format(integer, spec)
>>> bin_representation
'001010101111000001001000111110111111111111'
>>> print(bin_representation)
001010101111000001001000111110111111111111

String Formatting (Templating) with str.format

We can use that in a string using str.format method:

>>> 'here is the binary form: {0:{spec}}'.format(integer, spec=spec)
'here is the binary form: 001010101111000001001000111110111111111111'

Or just put the spec directly in the original string:

>>> 'here is the binary form: {0:0>42b}'.format(integer)
'here is the binary form: 001010101111000001001000111110111111111111'

String Formatting with the new f-strings

Let's demonstrate the new f-strings. They use the same mini-language formatting rules:

>>> integer = 0xABC123EFFF
>>> length = 42
>>> f'{integer:0>{length}b}'
'001010101111000001001000111110111111111111'

Now let's put this functionality into a function to encourage reusability:

def bin_format(integer, length):
    return f'{integer:0>{length}b}'

And now:

>>> bin_format(0xABC123EFFF, 42)
'001010101111000001001000111110111111111111'    

Aside

If you actually just wanted to encode the data as a string of bytes in memory or on disk, you can use the int.to_bytes method, which is only available in Python 3:

>>> help(int.to_bytes)
to_bytes(...)
    int.to_bytes(length, byteorder, *, signed=False) -> bytes
...

And since 42 bits divided by 8 bits per byte equals 6 bytes:

>>> integer.to_bytes(6, 'big')
b'\x00\xab\xc1#\xef\xff'

have you visited this links? http://groups.google.com/group/android-developers/browse_thread/thread/dcaf8b2fdd8a90c4/62d5e2ffef31ebdb

http://moazzam-khan.com/blog/?tag=android-upload-file

http://evgenyg.wordpress.com/2010/05/01/uploading-files-multipart-post-apache/

Concise example of file upload via Java lib Apache Commons

i think you will get help from this

Something better would be:

<Grid Width="Your-specified-value" >
    <ScrollViewer>
         <TextBlock Width="Auto" TextWrapping="Wrap" />
    </ScrollViewer>
</Grid>

This makes sure that the text in your textblock does not overflow and overlap the elements below the textblock as may be the case if you do not use the grid. That happened to me when I tried other solutions even though the textblock was already in a grid with other elements. Keep in mind that the width of the textblock should be Auto and you should specify the desired with in the Grid element. I did this in my code and it works beautifully. HTH.

To disable all form, as easy as write:

jQuery 1.6+

$("#form :input").prop("disabled", true);

jQuery 1.5 and below

$("#form :input").attr('disabled','disabled');

Try this On window load submit your form.

window.onload = function(){
  document.forms['member_signup'].submit();
}

Depending on box sizing width 100% might not always be the best option. I would suggest

 width:100vw;
 overflow-x: scroll;

This can be applied in the context of body, html as has been suggested or you could just wrap the content that is having an issue in a div with these settings applied.

You (as in the process that runs b.php, either you through CLI or a webserver) need write access to the directory in which the files are located. You are updating the directory content, so access to the file is not enough.

Note that if you use the PHP chmod() function to set the mode of a file or folder to 777 you should use 0777 to make sure the number is correctly interpreted as an octal number.

I believe you can also do it while creating the dialog (copied from a project I did):

dialog = $('#dialog').dialog({
    modal: true,
    autoOpen: false,
    width: 700,
    height: 500,
    minWidth: 700,
    minHeight: 500,
    position: ["center", 200],
    close: CloseFunction,
    overlay: {
        opacity: 0.5,
        background: "black"
    }
});

Note close: CloseFunction

• utf8 is MySQL's older, flawed implementation of UTF-8 which is in the process of being deprecated.
• utf8mb4 is what they named their fixed UTF-8 implementation, and is what you should use right now.

In their flawed version, only characters in the first 64k character plane - the basic multilingual plane - work, with other characters considered invalid. The code point values within that plane - 0 to 65535 (some of which are reserved for special reasons) can be represented by multi-byte encodings in UTF-8 of up to 3 bytes, and MySQL's early version of UTF-8 arbitrarily decided to set that as a limit. At no point was this limitation a correct interpretation of the UTF-8 rules, because at no point was UTF-8 defined as only allowing up to 3 bytes per character. In fact, the earliest definitions of UTF-8 defined it as having up to 6 bytes (since revised to 4). MySQL's original version was always arbitrarily crippled.

Back when MySQL released this, the consequences of this limitation weren't too bad as most Unicode characters were in that first plane. Since then, more and more newly defined character ranges have been added to Unicode with values outside that first plane. Unicode itself defines 17 planes, though so far only 7 of these are used.

In an effort not to break old code making any particular assumptions, MySQL retained the broken implementation and called the newer, fixed version utf8mb4. This has led to some confusion with the name being misinterpreted as if it's some kind of extension to UTF-8 or alternative form of UTF-8, rather than MySQL's implementation of the true UTF-8.

Future versions of MySQL will eventually phase out the older version, and for now it can be considered deprecated. For the foreseeable future you need to use utf8mb4 to ensure correct UTF-8 encoding. After sufficient time has passed, the current utf8 will be removed, and at some future date utf8 will rise again, this time referring to the fixed version, though utf8mb4 will continue to unambiguously refer to the fixed version.

Something like this...

var res = from row in myDTable.AsEnumerable()
where row.Field<int>("EmpID") == 5 &&
(row.Field<string>("EmpName") != "abc" ||
row.Field<string>("EmpName") != "xyz")
select row;

See also LINQ query on a DataTable

Depending on your workflow, this may be the kind of thing that you need rarely enough that there's little point in trying to figure out a command-line solution (unless you happen to be working without a graphical interface for some reason).

Just use one of the GUI-based tools that support index management, for example:

• git gui <-- uses the Tk windowing framework -- similar style to gitk
• git cola <-- a more modern-style GUI interface

These let you move files in and out of the index by point-and-click. They even have support for selecting and moving portions of a file (individual changes) to and from the index.

How about a different perspective: If you mess up while using one of the suggested, rather cryptic, commands:

• git rm --cached [file]
• git reset HEAD <file>

...you stand a real chance of losing data -- or at least making it hard to find. Unless you really need to do this with very high frequency, using a GUI tool is likely to be safer.

Working without the index

Based on the comments and votes, I've come to realize that a lot of people use the index all the time. I don't. Here's how:

• Commit my entire working copy (the typical case): git commit -a
• Commit just a few files: git commit (list of files)
• Commit all but a few modified files: git commit -a then amend via git gui
• Graphically review all changes to working copy: git difftool --dir-diff --tool=meld

Make sure you are authenticated with the correct account:

gcloud auth list
* account 1
  account 2

Change to the project's account if not:

gcloud config set account `ACCOUNT`

Depending on the account, the project list will be different:

gcloud projects list

- project 1
- project 2...

Switch to intended project:

gcloud config set project `PROJECT ID`

Use the map function (in Python 2.x):

results = map(int, results)

In Python 3, you will need to convert the result from map to a list:

results = list(map(int, results))

Just set the selectIndex of the associated <select> tag to -1 as the last step of your processing event.

mySelect = document.getElementById("idlist");
mySelect.selectedIndex = -1; 

It works every time, removing the highlight and allowing you to select the same (or different) element again .

This problem can be easily solved by installing the following Individual components:

A very practical reason is that IE 6 doesn't let you resize the font if it's specified using px, whereas it does if you use a relative unit such as em or percentages. Not allowing the user to resize the font is very bad for accessibility. Although it's in decline, there are still a lot of IE 6 users out there.

Also check out :undolist, which offers multiple paths through the undo history. This is useful if you accidentally type something after undoing too much.

Use varchar instead of VAR_CHAR and omit the comma in the last line i.e.phone INT NOT NULL );. The last line during creating table is kept "comma free". Ex:- CREATE TABLE COMPUTER ( Model varchar(50) ); Here, since we have only one column ,that's why there is no comma used during entire code.

Sure it's possible... use Export Wizard in source option use SQL SERVER NATIVE CLIENT 11, later your source server ex.192.168.100.65\SQLEXPRESS next step select your new destination server ex.192.168.100.65\SQL2014

Just be sure to be using correct instance and connect each other

Just pay attention in Stored procs must be recompiled

Even I had the same problem understanding how are CPython, JPython, IronPython, PyPy are different from each other.

So, I am willing to clear three things before I begin to explain:

1. Python: It is a language, it only states/describes how to convey/express yourself to the interpreter (the program which accepts your python code).
2. Implementation: It is all about how the interpreter was written, specifically, in what language and what it ends up doing.
3. Bytecode: It is the code that is processed by a program, usually referred to as a virtual machine, rather than by the "real" computer machine, the hardware processor.

CPython is the implementation, which was written in C language. It ends up producing bytecode (stack-machine based instruction set) which is Python specific and then executes it. The reason to convert Python code to a bytecode is because it's easier to implement an interpreter if it looks like machine instructions. But, it isn't necessary to produce some bytecode prior to execution of the Python code (but CPython does produce).

If you want to look at CPython's bytecode then you can. Here's how you can:

>>> def f(x, y):                # line 1
...    print("Hello")           # line 2
...    if x:                    # line 3
...       y += x                # line 4
...    print(x, y)              # line 5
...    return x+y               # line 6
...                             # line 7
>>> import dis                  # line 8
>>> dis.dis(f)                  # line 9
  2           0 LOAD_GLOBAL              0 (print)
              2 LOAD_CONST               1 ('Hello')
              4 CALL_FUNCTION            1
              6 POP_TOP

  3           8 LOAD_FAST                0 (x)
             10 POP_JUMP_IF_FALSE       20

  4          12 LOAD_FAST                1 (y)
             14 LOAD_FAST                0 (x)
             16 INPLACE_ADD
             18 STORE_FAST               1 (y)

  5     >>   20 LOAD_GLOBAL              0 (print)
             22 LOAD_FAST                0 (x)
             24 LOAD_FAST                1 (y)
             26 CALL_FUNCTION            2
             28 POP_TOP

  6          30 LOAD_FAST                0 (x)
             32 LOAD_FAST                1 (y)
             34 BINARY_ADD
36 RETURN_VALUE

Now, let's have a look at the above code. Lines 1 to 6 are a function definition. In line 8, we import the 'dis' module which can be used to view the intermediate Python bytecode (or you can say, disassembler for Python bytecode) that is generated by CPython (interpreter).

NOTE: I got the link to this code from #python IRC channel: https://gist.github.com/nedbat/e89fa710db0edfb9057dc8d18d979f9c

And then, there is Jython, which is written in Java and ends up producing Java byte code. The Java byte code runs on Java Runtime Environment, which is an implementation of Java Virtual Machine (JVM). If this is confusing then I suspect that you have no clue how Java works. In layman terms, Java (the language, not the compiler) code is taken by the Java compiler and outputs a file (which is Java byte code) that can be run only using a JRE. This is done so that, once the Java code is compiled then it can be ported to other machines in Java byte code format, which can be only run by JRE. If this is still confusing then you may want to have a look at this web page.

Here, you may ask if the CPython's bytecode is portable like Jython, I suspect not. The bytecode produced in CPython implementation was specific to that interpreter for making it easy for further execution of code (I also suspect that, such intermediate bytecode production, just for the ease the of processing is done in many other interpreters).

So, in Jython, when you compile your Python code, you end up with Java byte code, which can be run on a JVM.

Similarly, IronPython (written in C# language) compiles down your Python code to Common Language Runtime (CLR), which is a similar technology as compared to JVM, developed by Microsoft.

If you only need the time from the date, you can just use the feature of String.

Date test = new Date();
String dayString = test.toString();
String timeString = dayString.substring( 11 , 19 );

This will automatically cut the time part of the String and save it inside the timeString.

You can turn the color picker into an application by following the guide here:

http://hints.macworld.com/article.php?story=20060408050920158

From the guide:

Simply fire up AppleScript (Applications -> AppleScript Editor) and enter this text:

choose color

Now, save it as an application (File -> Save As, and set the File Format pop-up to Application), and you're done

or you can simply do

$('select[name=a[b]] option:selected').val()

As suggested by @The Berga You can add android:layoutDirection="rtl" but it's only available with API 17.
for dynamic implementation, here it goes

chkBox.setLayoutDirection(View.LAYOUT_DIRECTION_RTL);

'%' keyword is so dangerous because it major cause of 'SQL INJECTION ATTACK'.
So you just using this code.

cursor.execute("select * from table where example=%s", (example,))

or

t = (example,)
cursor.execute("select * from table where example=%s", t)

if you want to try insert into table, try this.

name = 'ksg'
age = 19
sex = 'male'
t  = (name, age, sex)
cursor.execute("insert into table values(%s,%d,%s)", t)

You can't, but you can use BETWEEN

SELECT job FROM mytable WHERE id BETWEEN 10 AND 15

Note that BETWEEN is inclusive, and will include items with both id 10 and 15.

If you do not want inclusion, you'll have to fall back to using the > and < operators.

SELECT job FROM mytable WHERE id > 10 AND id < 15

parseInt() parses String to int while valueOf() additionally wraps this int into Integer. That's the only difference.

If you want to have full control over parsing integers, check out NumberFormat with various locales.

1. First, add a data conversion block into your data flow diagram.

2. Open the data conversion block and tick the column for which the error is showing. Below change its data type to unicode string(DT_WSTR) or whatever datatype is expected and save.

3. Go to the destination block. Go to mapping in it and map the newly created element to its corresponding address and save.

4. Right click your project in the solution explorer.select properties. Select configuration properties and select debugging in it. In this, set the Run64BitRunTime option to false (as excel does not handle the 64 bit application very well).

$('input[type=submit]').on('click', validate);


function validate() {
  var password1 = $("#password1").val();
  var password2 = $("#password2").val();

    if(password1 == password2) {
       $("#validate-status").text("valid");        
    }
    else {
        $("#validate-status").text("invalid");  
    } 
}

Logic is to check on keyup if the value in both fields match or not.

• Working fiddle: http://jsfiddle.net/dbwMY/
• More details here: Checking password match while typing

I've been Eclipse-free for over a year now, but I believe Eclipse calls these "Templates". Look in your settings for them. You invoke a template by typing its abbreviation and pressing the normal code completion hotkey (ctrl+space by default) or using the Tab key. The standard eclipse shortcut for System.out.println() is "sysout", so "sysout" would do what you want.

Here's another stackoverflow question that has some more details about it: How to use the "sysout" snippet in Eclipse with selected text?

The modal dialog can be positioned on top by overriding its z-index property:

.modal.fade {
  z-index: 10000000 !important;
}

Change

if [ -s "p1"];  #line 13

into

if [ -s "p1" ];  #line 13

note the space.

Another short way you could use is a pipe (%<>%) from the magrittr package. It converts the character column mycolumn to a factor.

library(magrittr)

mydf$mycolumn %<>% factor

i think you can use case for this...

case $1 in 
 -h) echo $usage ;; 
  h) echo $usage ;;
help) echo $usage ;;
esac

In SQL Server Management Studio 2008 (R2) and newer, you can Right Click on the

DB -> Tasks -> Generate Scripts

• Select the tables you want to DROP.

• Select "Save to new query window".

• Click on the Advanced button.

• Set Script DROP and CREATE to Script DROP.

• Set Script Foreign Keys to True.

• Click OK.

• Click Next -> Next -> Finish.

• View the script and then Execute.

Insert into TBL (Name, UserName, Password) Output Inserted.IdentityColumnName
 Values ('example', 'example', 'example')

Check out BoxShadow and BoxDecoration

A Container can take a BoxDecoration (going off of the code you had originally posted) which takes a boxShadow

return Container(
  margin: EdgeInsets.only(left: 30, top: 100, right: 30, bottom: 50),
  height: double.infinity,
  width: double.infinity,
  decoration: BoxDecoration(
    color: Colors.white,
    borderRadius: BorderRadius.only(
      topLeft: Radius.circular(10),
        topRight: Radius.circular(10),
        bottomLeft: Radius.circular(10),
        bottomRight: Radius.circular(10)
    ),
    boxShadow: [
      BoxShadow(
        color: Colors.grey.withOpacity(0.5),
        spreadRadius: 5,
        blurRadius: 7,
        offset: Offset(0, 3), // changes position of shadow
      ),
    ],
  ),
)

Screenshot

As the whole thing is mixing up let's look at it function and code to simulate what it means consicely

The only way to get a row is via primary key

getRow(pk: PrimaryKey): Row

Primary key data structure can be this:

// If you decide your primary key is just the partition key.
class PrimaryKey(partitionKey: String)

// and in thids case
getRow(somePartitionKey): Row

However you can decide your primary key is partition key + sort key in this case:

// if you decide your primary key is partition key + sort key
class PrimaryKey(partitionKey: String, sortKey: String)

getRow(partitionKey, sortKey): Row
getMultipleRows(partitionKey): Row[]

So the bottom line:

1. Decided that your primary key is partition key only? get single row by partition key.

2. Decided that your primary key is partition key + sort key? 2.1 Get single row by (partition key, sort key) or get range of rows by (partition key)

In either way you get a single row by primary key the only question is if you defined that primary key to be partition key only or partition key + sort key

Building blocks are:

1. Table
2. Item
3. KV Attribute.

Think of Item as a row and of KV Attribute as cells in that row.

1. You can get an item (a row) by primary key.
2. You can get multiple items (multiple rows) by specifying (HashKey, RangeKeyQuery)

You can do (2) only if you decided that your PK is composed of (HashKey, SortKey).

More visually as its complex, the way I see it:

+----------------------------------------------------------------------------------+
|Table                                                                             |
|+------------------------------------------------------------------------------+  |
||Item                                                                          |  |
||+-----------+ +-----------+ +-----------+ +-----------+                       |  |
|||primaryKey | |kv attr    | |kv attr ...| |kv attr ...|                       |  |
||+-----------+ +-----------+ +-----------+ +-----------+                       |  |
|+------------------------------------------------------------------------------+  |
|+------------------------------------------------------------------------------+  |
||Item                                                                          |  |
||+-----------+ +-----------+ +-----------+ +-----------+ +-----------+         |  |
|||primaryKey | |kv attr    | |kv attr ...| |kv attr ...| |kv attr ...|         |  |
||+-----------+ +-----------+ +-----------+ +-----------+ +-----------+         |  |
|+------------------------------------------------------------------------------+  |
|                                                                                  |
+----------------------------------------------------------------------------------+

+----------------------------------------------------------------------------------+
|1. Always get item by PrimaryKey                                                  |
|2. PK is (Hash,RangeKey), great get MULTIPLE Items by Hash, filter/sort by range     |
|3. PK is HashKey: just get a SINGLE ITEM by hashKey                               |
|                                                      +--------------------------+|
|                                 +---------------+    |getByPK => getBy(1        ||
|                 +-----------+ +>|(HashKey,Range)|--->|hashKey, > < or startWith ||
|              +->|Composite  |-+ +---------------+    |of rangeKeys)             ||
|              |  +-----------+                        +--------------------------+|
|+-----------+ |                                                                   |
||PrimaryKey |-+                                                                   |
|+-----------+ |                                       +--------------------------+|
|              |  +-----------+   +---------------+    |getByPK => get by specific||
|              +->|HashType   |-->|get one item   |--->|hashKey                   ||
|                 +-----------+   +---------------+    |                          ||
|                                                      +--------------------------+|
+----------------------------------------------------------------------------------+

So what is happening above. Notice the following observations. As we said our data belongs to (Table, Item, KVAttribute). Then Every Item has a primary key. Now the way you compose that primary key is meaningful into how you can access the data.

If you decide that your PrimaryKey is simply a hash key then great you can get a single item out of it. If you decide however that your primary key is hashKey + SortKey then you could also do a range query on your primary key because you will get your items by (HashKey + SomeRangeFunction(on range key)). So you can get multiple items with your primary key query.

Note: I did not refer to secondary indexes.

For a new project select the home directory of the jdk

eg C:\Java\jdk1.7.0_99 or C:\Program Files\Java\jdk1.7.0_99

For an existing project.

1) You need to have a jdk installed on the system.

for instance in

C:\Java\jdk1.7.0_99

2) go to project structure under File menu ctrl+alt+shift+S

3) SDKs is located under Platform Settings. Select it.

4) click the green + up the top of the window.

5) select JDK (I have to use keyboard to select it do not know why).

select the home directory for your jdk installation.

should be good to go.

Use array_walk_recursive

<?php

$aNonFlat = array(
    1,
    2,
    array(
        3,
        4,
        5,
        array(
            6,
            7
        ),
        8,
        9,
    ),
    10,
    11
);

$objTmp = (object) array('aFlat' => array());

array_walk_recursive($aNonFlat, create_function('&$v, $k, &$t', '$t->aFlat[] = $v;'), $objTmp);

var_dump($objTmp->aFlat);

/*
array(11) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(3)
  [3]=>
  int(4)
  [4]=>
  int(5)
  [5]=>
  int(6)
  [6]=>
  int(7)
  [7]=>
  int(8)
  [8]=>
  int(9)
  [9]=>
  int(10)
  [10]=>
  int(11)
}
*/

?>

Tested with PHP 5.5.9-1ubuntu4.24 (cli) (built: Mar 16 2018 12:32:06)

For future seekers who might have dropped simple details like me, in my case I just have forgotten to call my action function with parentheses.

actions.js:

export function addNewComponent() {
  return {
    type: ADD_NEW_COMPONENT,
  };
}

myComponent.js:

import React, { useEffect } from 'react';
import { addNewComponent } from '../../redux/actions';

  useEffect(() => {
    dispatch(refreshAllComponents); // <= Here was what I've missed.
  }, []);

I've forgotten to dispatch the action function with (). So doing this solved my issue.

  useEffect(() => {
    dispatch(refreshAllComponents());
  }, []);

Again this might have nothing to do with OP's problem, but I hope I helps people with the same problem as mine.

I know it's been said already, but I'd highly recommend the requests Python package.

If you've used languages other than python, you're probably thinking urllib and urllib2 are easy to use, not much code, and highly capable, that's how I used to think. But the requests package is so unbelievably useful and short that everyone should be using it.

First, it supports a fully restful API, and is as easy as:

import requests

resp = requests.get('http://www.mywebsite.com/user')
resp = requests.post('http://www.mywebsite.com/user')
resp = requests.put('http://www.mywebsite.com/user/put')
resp = requests.delete('http://www.mywebsite.com/user/delete')

Regardless of whether GET / POST, you never have to encode parameters again, it simply takes a dictionary as an argument and is good to go:

userdata = {"firstname": "John", "lastname": "Doe", "password": "jdoe123"}
resp = requests.post('http://www.mywebsite.com/user', data=userdata)

Plus it even has a built in JSON decoder (again, I know json.loads() isn't a lot more to write, but this sure is convenient):

resp.json()

Or if your response data is just text, use:

resp.text

This is just the tip of the iceberg. This is the list of features from the requests site:

• International Domains and URLs
• Keep-Alive & Connection Pooling
• Sessions with Cookie Persistence
• Browser-style SSL Verification
• Basic/Digest Authentication
• Elegant Key/Value Cookies
• Automatic Decompression
• Unicode Response Bodies
• Multipart File Uploads
• Connection Timeouts
• .netrc support
• List item
• Python 2.6—3.4
• Thread-safe.

This command should work:

sed "s/\s/,/g" < infile.txt > outfile.txt

Note that you have to redirect the output to a new file. The input file is not changed in place.

Install nmap,

sudo apt-get install nmap

then

nmap -sP 192.168.1.*

or more commonly

nmap -sn 192.168.1.0/24

will scan the entire .1 to .254 range

This does a simple ping scan in the entire subnet to see which hosts are online.

and doesnt give any clues

Yes it does, unfortunately your code is ignoring all of those clues. Take a look at your exception handler:

catch (OleDbException  ex)
{
    MessageBox.Show(ex.Source);
    conn.Close();
}

All you're examining is the source of the exception. Which, in this case, is "Microsoft Access Database Engine". You're not examining the error message itself, or the stack trace, or any inner exception, or anything useful about the exception.

Don't ignore the exception, it contains information about what went wrong and why.

There are various logging tools out there (NLog, log4net, etc.) which can help you log useful information about an exception. Failing that, you should at least capture the exception message, stack trace, and any inner exception(s). Currently you're ignoring the error, which is why you're not able to solve the error.

In your debugger, place a breakpoint inside the catch block and examine the details of the exception. You'll find it contains a lot of information.

This seems like that the servlet api version which you using is older than the xsd you are using in web.xml eg 3.0

use this one ****http://java.sun.com/xml/ns/javaee/" id="WebApp_ID" version="2.5"> ****

http://facebook.com/sharer.php is deprecated

You have a few options (use the iframe version):

http://developers.facebook.com/docs/reference/plugins/like/

http://developers.facebook.com/docs/reference/plugins/send/

https://developers.facebook.com/docs/reference/plugins/like-box/

Understand the differences in the motivations:

Suppose you’re building a tool where you’ve objects and a concrete implementation of the interrelations of the objects. Since you foresee variations in the objects, you’ve created an indirection by assigning the responsibility of creating variants of the objects to another object (we call it abstract factory). This abstraction finds strong benefit since you foresee future extensions needing variants of those objects.

Another rather intriguing motivation in this line of thoughts is a case where every-or-none of the objects from the whole group will have a corresponding variant. Based on some conditions, either of the variants will be used and in each case all objects must be of same variant. This might be a bit counter intuitive to understand as we often tend think that - as long as the variants of an object follow a common uniform contract (interface in broader sense), the concrete implementation code should never break. The intriguing fact here is that, not always this is true especially when expected behavior cannot be modeled by a programming contract.

A simple (borrowing the idea from GoF) is any GUI applications say a virtual monitor that emulates look-an-feel of MS or Mac or Fedora OS’s. Here, for example, when all widget objects such as window, button, etc. have MS variant except a scroll-bar that is derived from MAC variant, the purpose of the tool fails badly.

These above cases form the fundamental need of Abstract Factory Pattern.

On the other hand, imagine you’re writing a framework so that many people can built various tools (such as the one in above examples) using your framework. By the very idea of a framework, you don’t need to, albeit you could not use concrete objects in your logic. You rather put some high level contracts between various objects and how they interact. While you (as a framework developer) remain at a very abstract level, each builders of the tool is forced to follow your framework-constructs. However, they (the tool builders) have the freedom to decide what object to be built and how all the objects they create will interact. Unlike the previous case (of Abstract Factory Pattern), you (as framework creator) don’t need to work with concrete objects in this case; and rather can stay at the contract level of the objects. Furthermore, unlike the second part of the previous motivations, you or the tool-builders never have the situations of mixing objects from variants. Here, while framework code remains at contract level, every tool-builder is restricted (by the nature of the case itself) to using their own objects. Object creations in this case is delegated to each implementer and framework providers just provide uniform methods for creating and returning objects. Such methods are inevitable for framework developer to proceed with their code and has a special name called Factory method (Factory Method Pattern for the underlying pattern).

Few Notes:

• If you’re familiar with ‘template method’, then you’d see that factory methods are often invoked from template methods in case of programs pertaining to any form of framework. By contrast, template methods of application-programs are often simple implementation of specific algorithm and void of factory-methods.
• Furthermore, for the completeness of the thoughts, using the framework (mentioned above), when a tool-builder is building a tool, inside each factory method, instead of creating a concrete object, he/she may further delegate the responsibility to an abstract-factory object, provided the tool-builder foresees variations of the concrete objects for future extensions.

Sample Code:

//Part of framework-code
BoardGame {
    Board createBoard() //factory method. Default implementation can be provided as well
    Piece createPiece() //factory method

    startGame(){        //template method
         Board borad = createBoard()
         Piece piece = createPiece()
         initState(board, piece)
    }
}


//Part of Tool-builder code
Ludo inherits  BoardGame {
     Board createBoard(){ //overriding of factory method
         //Option A: return new LudoBoard() //Lodu knows object creation
         //Option B: return LudoFactory.createBoard() //Lodu asks AbstractFacory
     }
….
}

//Part of Tool-builder code
Chess inherits  BoardGame {
    Board createBoard(){ //overriding of factory method
        //return a Chess board
    }
    ….
}

The private keyword will allow the use for the variable access within the class and static means we can access the variable in a static method.

You may need this cause a non-static reference variable cannot be accessible in a static method.

Attribute_Brands is a named range.

On any worksheet (tab) press F5 and type Attribute_Brands into the reference box and click on the OK button.

This will take you to the named range.

The data in it can be updated by typing new values into the cells.

The named range can be altered via the 'Insert - Name - Define' menu.

If you are using Laravel 5.6, it comes with Bootstrap 4. All you need to is:

npm install and npm install open-iconic --save

At /resources/assets/sass/app.scss change the line of of Google font import on line 2 to

@import '~open-iconic/font/css/open-iconic-bootstrap';

All you need to do now is

npm run watch

and include

<link rel="stylesheet" href="{{asset('css/app.css')}}">

on top of master blade file and <script src="{{asset('js/app.js')}}"></script> before closing body tag. You will get Bootstrap 4 and icon.

Usage is <span class="oi oi-cog"></span>

Refer here for icon details: Open Iconic: Recommended by Bootstrap 4

If on other project than Laravel, you can just do import @import 'node_modules/open-iconic/font/css/open-iconic-bootstrap-min.css'; in your style file.

Hope this helps. Happy trying.

First List the Variable that you want to use them in Script task at ReadOnlyVariables in the Script task editor and Edit the Script

To use your ReadOnlyVariables in script code

String codeVariable = Dts.Variables["User::VariableNameinSSIS"].Value.ToString();

this line of code will treat the ssis package variable as a string.

You've got it nearly correct, but you haven't accounted for the this value supplied to the inline code.

<a href="#" onclick="alert(this)">Click Me</a>

is actually closer to:

<a href="#" id="click_me">Click Me</a>
<script type="text/javascript">
document.getElementById('click_me').addEventListener("click", function(event) {
    (function(event) {
        alert(this);
    }).call(document.getElementById('click_me'), event);
});
</script>

Inline event handlers set this equal to the target of the event. You can also use anonymous function in inline script

<a href="#" onclick="(function(){alert(this);})()">Click Me</a>

I've seen people mention a rename command, but it is not routinely available on Unix systems (as opposed to Linux systems, say, or Cygwin - on both of which, rename is an executable rather than a script). That version of rename has a fairly limited functionality:

rename from to file ...

It replaces the from part of the file names with the to, and the example given in the man page is:

rename foo foo0 foo? foo??

This renames foo1 to foo01, and foo10 to foo010, etc.

I use a Perl script called rename, which I originally dug out from the first edition Camel book, circa 1992, and then extended, to rename files.

#!/bin/perl -w
#
# @(#)$Id: rename.pl,v 1.7 2008/02/16 07:53:08 jleffler Exp $
#
# Rename files using a Perl substitute or transliterate command

use strict;
use Getopt::Std;

my(%opts);
my($usage) = "Usage: $0 [-fnxV] perlexpr [filenames]\n";
my($force) = 0;
my($noexc) = 0;
my($trace) = 0;

die $usage unless getopts('fnxV', \%opts);

if ($opts{V})
{
    printf "%s\n", q'RENAME Version $Revision: 1.7 $ ($Date: 2008/02/16 07:53:08 $)';
    exit 0;
}
$force = 1 if ($opts{f});
$noexc = 1 if ($opts{n});
$trace = 1 if ($opts{x});

my($op) = shift;
die $usage unless defined $op;

if (!@ARGV) {
    @ARGV = <STDIN>;
    chop(@ARGV);
}

for (@ARGV)
{
    if (-e $_ || -l $_)
    {
        my($was) = $_;
        eval $op;
        die $@ if $@;
        next if ($was eq $_);
        if ($force == 0 && -f $_)
        {
            print STDERR "rename failed: $was - $_ exists\n";
        }
        else
        {
            print "+ $was --> $_\n" if $trace;
            print STDERR "rename failed: $was - $!\n"
                unless ($noexc || rename($was, $_));
        }
    }
    else
    {
        print STDERR "$_ - $!\n";
    }
}

This allows you to write any Perl substitute or transliterate command to map file names. In the specific example requested, you'd use:

rename 's/^/new./' original.filename

I had the same its because of version incompatibility check for version or remove version if using spring boot

Here's an excellent article by Scott Allen: Developing Gadgets for the Windows Sidebar

This site, Windows 7/Vista Sidebar Gadgets, has links to many gadget resources.

I think this sort of question is entirely appropriate to the forum, especially if an easy solution can be found, as would save others hours of pain.

Unfortunately I dont have the solution, but would suggest (if you haven't already)

1. Run FileMon to see if the installer is looking for specific files which are no longer there - this may give some clues.

2. Painful, but try uninstalling other apps based upon the VS shell (eg 2005) first.

create two tabs, one with the formulas and then a second where you paste link the entire table. the second tab should have no problems when sorting!

First, you need to understand that you have two documents: The frame and the container (which contains the frame).

The main obstacle with manipulating the frame from the container is that the frame loads asynchronously. You can't simply access it any time, you must know when it has finished loading. So you need a trick. The usual solution is to use window.parent in the frame to get "up" (into the document which contains the iframe tag).

Now you can call any method in the container document. This method can manipulate the frame (for example call some JavaScript in the frame with the parameters you need). To know when to call the method, you have two options:

1. Call it from body.onload of the frame.

2. Put a script element as the last thing into the HTML content of the frame where you call the method of the container (left as an exercise for the reader).

So the frame looks like this:

<script>
function init() { window.parent.setUpFrame(); return true; }
function yourMethod(arg) { ... }
</script>
<body onload="init();">...</body>

And the container like this:

<script>
function setUpFrame() { 
    var frame = window.frames['frame-id'];
    frame.yourMethod('hello');
}
</script>
<body><iframe name="frame-id" src="..."></iframe></body>

You can use like this:

string date = "";

date = DateTime.ParseExact("01:00 PM" , "h:mm tt", CultureInfo.InvariantCulture).ToString("HH:mm");

h: 12 hours

mm: mins

tt: PM/AM

HH:24 hours

To customize background image scaling create a resource like this:

<?xml version="1.0" encoding="utf-8"?>
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
    android:gravity="center"
    android:src="@drawable/list_bkgnd" />

Then it will be centered in the view if used as background. There are also other flags: http://developer.android.com/guide/topics/resources/drawable-resource.html

Using crosstab, this will return more information than groupby nunique

pd.crosstab(df.YEARMONTH,df.CLIENTCODE)
Out[196]: 
CLIENTCODE  1  2  3
YEARMONTH          
201301      2  1  0
201302      1  2  1

After a little bit modify ,yield the result

pd.crosstab(df.YEARMONTH,df.CLIENTCODE).ne(0).sum(1)
Out[197]: 
YEARMONTH
201301    2
201302    3
dtype: int64

Use .setType("message/rfc822") or the chooser will show you all of the (many) applications that support the send intent.

One more important difference between add and replace is this:

replace removes the existing fragment and adds a new fragment. This means when you press back button the fragment that got replaced will be created with its onCreateView being invoked. Whereas add retains the existing fragments and adds a new fragment that means existing fragment will be active and they wont be in 'paused' state hence when a back button is pressed onCreateView is not called for the existing fragment(the fragment which was there before new fragment was added).

In terms of fragment's life cycle events onPause, onResume, onCreateView and other life cycle events will be invoked in case of replace but they wont be invoked in case of add.

Edit: One should be careful if she is using some kind of event bus library like Greenrobot's Eventbus and reusing the same fragment to stack the fragment on top of other via add. In this scenario, even though you follow the best practice and register the event bus in onResume and unregister in onPause, event bus would still be active in each instance of the added fragment as add fragment wont call either of these fragment life cycle methods. As a result event bus listener in each active instance of the fragment would process the same event which may not be what you want.

Yes, await / async was a great concept, but the implementation is completely broken.

For whatever reason, the await keyword has been implemented such that it can only be used within an async method. This is in fact a bug, though you will not see it referred to as such anywhere but right here. The fix for this bug would be to implement the await keyword such that it can only be used TO CALL an async function, regardless of whether the calling function is itself synchronous or asynchronous.

Due to this bug, if you use await to call a real asynchronous function somewhere in your code, then ALL of your functions must be marked as async and ALL of your function calls must use await.

This essentially means that you must add the overhead of promises to all of the functions in your entire application, most of which are not and never will be asynchronous.

If you actually think about it, using await in a function should require the function containing the await keyword TO NOT BE ASYNC - this is because the await keyword is going to pause processing in the function where the await keyword is found. If processing in that function is paused, then it is definitely NOT asynchronous.

So, to the developers of javascript and ECMAScript - please fix the await/async implementation as follows...

• await can only be used to CALL async functions.
• await can appear in any kind of function, synchronous or asynchronous.
• Change the error message from "await is only valid in async function" to "await can only be used to call async functions".

You can use the model from the react-bootstrap from link and it's basically a function based

function Example() {
  const [show, setShow] = useState(false);
  const handleClose = () => setShow(false);
  const handleShow = () => setShow(true);
  return (
    <>
      <Button variant="primary" onClick={handleShow}>
        Launch demo modal
      </Button>

      <Modal show={show} onHide={handleClose} animation={false}>
        <Modal.Header closeButton>
          <Modal.Title>Modal heading</Modal.Title>
        </Modal.Header>
        <Modal.Body>Woohoo, you're reading this text in a modal!</Modal.Body>
        <Modal.Footer>
          <Button variant="secondary" onClick={handleClose}>
            Close
          </Button>
          <Button variant="primary" onClick={handleClose}>
            Save Changes
          </Button>
        </Modal.Footer>
      </Modal>
    </>
  );
}

and You can convert it into the class component

import React, { Component } from "react";
import { Button, Modal } from "react-bootstrap";


export default class exampleextends Component {
  constructor(props) {
    super(props);
    this.state = {
      show: false,
      close: false,
    };
  } 
  render() {
    return (
      <div>
        <Button
          variant="none"
          onClick={() => this.setState({ show: true })}
        >
          Choose Profile
        </Button>
        <Modal
          show={this.state.show}
          animation={true}
          size="md" className="" shadow-lg border">
          <Modal.Header className="bg-danger text-white text-center py-1">
            <Modal.Title className="text-center">
              <h5>Delete</h5>
            </Modal.Title>
          </Modal.Header>
          <Modal.Body className="py-0 border">
            body   
          </Modal.Body>
<Modal.Footer className="py-1 d-flex justify-content-center">
              <div>
                <Button
                  variant="outline-dark" onClick={() => this.setState({ show: false })}>Cancel</Button>
              </div>
              <div>
                <Button variant="outline-danger" className="mx-2 px-3">Delete</Button>
              </div>
            </Modal.Footer>
        </Modal>
      </div>
    );
  }
}

Since Python 3.7 and no external libraries, you can use the strptime function from the datetime module:

datetime.datetime.strptime('2019-01-04T16:41:24+0200', "%Y-%m-%dT%H:%M:%S%z")

For more formatting options, see here.

Python 2 doesn't support the %z format specifier, so it's best to explicitly use Zulu time everywhere if possible:

datetime.datetime.strptime("2007-03-04T21:08:12Z", "%Y-%m-%dT%H:%M:%SZ")

Took me some time to find the solution.

In case your server response correctly and the request is the problem, you should add withCredentials: true to the xhrFields in the request:

$.ajax({
    url: url,
    type: method,
    // This is the important part
    xhrFields: {
        withCredentials: true
    },
    // This is the important part
    data: data,
    success: function (response) {
        // handle the response
    },
    error: function (xhr, status) {
        // handle errors
    }
});

Note: jQuery >= 1.5.1 is required

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
'''

Run below command for other than 4200

ng serve --port 4500

Might be worth checking online for the errata section for your book.

There's an example of handling this exception here http://www.dba-oracle.com/sf_ora_01403_no_data_found.htm

You can also do it by toggling between display: block on hover and display:none without hover to produce the effect.

$(document).ready(function() {
    window.setTimeout(function(){window.location.href = "https://www.google.co.in"},5000);
});

With docker compose there's a simple alternative (no need to create a Dockerfile). Just create a init-database.sh:

#!/bin/bash
set -e

psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
    CREATE USER docker;
    CREATE DATABASE my_project_development;
    GRANT ALL PRIVILEGES ON DATABASE my_project_development TO docker;
    CREATE DATABASE my_project_test;
    GRANT ALL PRIVILEGES ON DATABASE my_project_test TO docker;
EOSQL

And reference it in the volumes section:

version: '3.4'

services:
  postgres:
    image: postgres
    restart: unless-stopped
    volumes:
      - postgres:/var/lib/postgresql/data
      - ./init-database.sh:/docker-entrypoint-initdb.d/init-database.sh
    environment:
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres
    ports:
      - 5432:5432

volumes:
  postgres:

You can achieve with following way

    this.projectService.create(project)
    .subscribe(
        result => {
         console.log(result);
        },
        error => {
            console.log(error);
            this.errors = error
        }
    ); 
}

if (!this.errors) {
    //route to new page
}

That's because if a class is abstract, then by definition you are required to create subclasses of it to instantiate. The subclasses will be required (by the compiler) to implement any interface methods that the abstract class left out.

Following your example code, try making a subclass of AbstractThing without implementing the m2 method and see what errors the compiler gives you. It will force you to implement this method.

There are multiple meanings of "lock" in SVN and some of these answers that talk about "break lock" or a teammate holding a lock are not using the relevant meaning for the original question. This question is dealing with "working copy locks" (i.e. they are entirely local to the working copy on your computer and have nothing to do with you or teammates holding a lock/check-out on a file). The accepted answer by MicroEyes is referring to the correct usage and is your best option when this happens.

If a cleanup doesn't work you may need to check out a fresh working copy of the project. If you have any modified, un-commited files you will need to copy them over to the fresh working copy so you don't lose your changes.

See this page in the Tortoise SVN docs for a description of the three usages of "lock": http://tortoisesvn.net/docs/nightly/TortoiseSVN_en/tsvn-dug-locking.html

Excerpt (emphasis added):

The Three Meanings of “Lock”

In this section, and almost everywhere in this book, the words “lock” and “locking” describe a mechanism for mutual exclusion between users to avoid clashing commits. Unfortunately, there are two other sorts of “lock” with which Subversion, and therefore this book, sometimes needs to be concerned.

The second is working copy locks, used internally by Subversion to prevent clashes between multiple Subversion clients operating on the same working copy. Usually you get these locks whenever a command like update/commit/... is interrupted due to an error. These locks can be removed by running the cleanup command on the working copy, as described in the section called “Cleanup”.

...

I created a button...

This is where you've gone wrong. You haven't created a button, you've created an anchor element. If you had used a button element instead, you wouldn't have this problem:

<button type="button" data-toggle="modal" data-target="#myModal" data-role="disabled">
    Connect
</button>

If you are going to continue using an a element instead, at the very least you should give it a role attribute set to "button" and drop the href attribute altogether:

<a role="button" ...>

Once you've done that you can introduce a piece of JavaScript which calls event.preventDefault() - here with event being your click event.

Sorry I am a beginner so my coding habit sucks!

public class TitleCase {

    String title(String sent)
    {   
        sent =sent.trim();
        sent = sent.toLowerCase();
        String[] str1=new String[sent.length()];
        for(int k=0;k<=str1.length-1;k++){
            str1[k]=sent.charAt(k)+"";
    }

        for(int i=0;i<=sent.length()-1;i++){
            if(i==0){
                String s= sent.charAt(i)+"";
                str1[i]=s.toUpperCase();
                }
            if(str1[i].equals(" ")){
                String s= sent.charAt(i+1)+"";
                str1[i+1]=s.toUpperCase();
                }

            System.out.print(str1[i]);
            }

        return "";
        }

    public static void main(String[] args) {
        TitleCase a = new TitleCase();
        System.out.println(a.title("   enter your Statement!"));
    }
}

You want to wrap each number into Math.abs(). e.g.

System.out.println(Math.abs(-1));

prints out "1".

If you want to avoid writing the Math.-part, you can include the Math util statically. Just write

import static java.lang.Math.abs;

along with your imports, and you can refer to the abs()-function just by writing

System.out.println(abs(-1));

Potential answer for SQL Server

Interesting I just ran a test using LinqPad with SQL Server which should be just running Linq to SQL underneath and it generates the following SQL statement.

Records .Where(r => r.Name.Contains("lkjwer--_~[]"))

-- Region Parameters
DECLARE @p0 VarChar(1000) = '%lkjwer--~_~~~[]%'
-- EndRegion
SELECT [t0].[ID], [t0].[Name]
FROM [RECORDS] AS [t0]
WHERE [t0].[Name] LIKE @p0 ESCAPE '~'

So I haven't tested it yet but it looks like potentially the ESCAPE '~' keyword may allow for automatic escaping of a string for use within a like expression.

Suppose gamma1 and gamma2 are two such columns for which df.isnull().any() gives True value , the following code can be used to print the rows.

bool1 = pd.isnull(df['gamma1'])
bool2 = pd.isnull(df['gamma2'])
df[bool1]
df[bool2]

Tomcat will only extract the war which is copied to webapps directory. Change Dockerfile as below:

FROM tomcat:8.0.20-jre8
COPY /1.0-SNAPSHOT/my-app-1.0-SNAPSHOT.war /usr/local/tomcat/webapps/myapp.war

You might need to access the url as below unless you have specified the webroot

http://192.168.59.103:8888/myapp/getData

Assuming that the user you are using in phpmyadmin has the necessary privileges, you can run this query to change the root password:

UPDATE mysql.user SET Password=PASSWORD('MyNewPass') WHERE User='root';
FLUSH PRIVILEGES;

For anyone who is looking to enable this on the Mac version, it is not available. Developers of Visual Studio stated they will include in their roadmap.

PRAGMA table_info(table_name);

This will work for both: command-line and when executed against a connected database.

A link for more details and example. thanks SQLite Pragma Command

startActivity(new Intent(context, ListofProducts.class)
    .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
    .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
    .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK));

Run these commands:

cd /pathToYourLocalProjectFolder

git pull origin master

With SQL Server 2005, I would use this:

select replace(convert(char(10),getdate(),102),'.',' ')

Results: 2015 03 05

The solution to avoid the unchecked warning:

class MyMap extends HashMap<String, String> {};
someMap = (MyMap)getApplicationContext().getBean("someMap");

The solution is to make it readable only by the owner of the file, i.e. the last two digits of the octal mode representation should be zero (e.g. mode 0400).

OpenSSH checks this in authfile.c, in a function named sshkey_perm_ok:

/*
 * if a key owned by the user is accessed, then we check the
 * permissions of the file. if the key owned by a different user,
 * then we don't care.
 */
if ((st.st_uid == getuid()) && (st.st_mode & 077) != 0) {
    error("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
    error("@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @");
    error("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
    error("Permissions 0%3.3o for '%s' are too open.",
        (u_int)st.st_mode & 0777, filename);
    error("It is required that your private key files are NOT accessible by others.");
    error("This private key will be ignored.");
    return SSH_ERR_KEY_BAD_PERMISSIONS;
}

See the first line after the comment: it does a "bitwise and" against the mode of the file, selecting all bits in the last two octal digits (since 07 is octal for 0b111, where each bit stands for r/w/x, respectively).

The following command will add all the lines(first field of the awk output)

awk '{s+=$1} END {print s}' filename

Actually I would use:

df[ grep("REVERSE", df$Name, invert = TRUE) , ]

This will avoid deleting all of the records if the desired search word is not contained in any of the rows.

Full outer join for two or more tables: First extract the column that you want to join on.

var DatesA = from A in db.T1 select A.Date; 
var DatesB = from B in db.T2 select B.Date; 
var DatesC = from C in db.T3 select C.Date;            

var Dates = DatesA.Union(DatesB).Union(DatesC); 

Then use left outer join between the extracted column and main tables.

var Full_Outer_Join =

(from A in Dates
join B in db.T1
on A equals B.Date into AB 

from ab in AB.DefaultIfEmpty()
join C in db.T2
on A equals C.Date into ABC 

from abc in ABC.DefaultIfEmpty()
join D in db.T3
on A equals D.Date into ABCD

from abcd in ABCD.DefaultIfEmpty() 
select new { A, ab, abc, abcd })
.AsEnumerable();

Just want to give one example why we decided to store image in DB not files or CDN, it is storing images of signatures.

We have tried to do so via CDN, cloud storage, files, and finally decided to store in DB and happy about the decision as it was proven us right in our subsequent events when we moved, upgraded our scripts and migrated the sites serveral times.

For my case, we wanted the signatures to be with the records that belong to the author of documents.

Storing in files format risks missing them or deleted by accident.

We store it as a blob binary format in MySQL, and later as based64 encoded image in a text field. The decision to change to based64 was due to smaller size as result for some reason, and faster loading. Blob was slowing down the page load for some reason.

In our case, this solution to store signature images in DB, (whether as blob or based64), was driven by:

1. Most signature images are very small.
2. We don't need to index the signature images stored in DB.
3. Index is done on the primary key.
4. We may have to move or switch servers, moving physical images files to different servers, may cause the images not found due to links change.
5. it is embarrassed to ask the author to re-sign their signatures.
6. it is more secured saving in the DB as compared to exposing it as files which can be downloaded if security is compromised. Storing in DB allows us better control over its access.
7. any future migrations, change of web design, hosting, servers, we have zero worries about reconcilating the signature file names against the physical files, it is all in the DB!

AC

There is no problem in deleting this. It's not only the WebStorm IDE creating this file, but also PhpStorm and all other of JetBrains' IDEs.

It is safe to delete it but if your project is from GitLab or GitHub then you will see a warning.

Just use the -jrm option to remove the file and directory structures

zip -jrm /path/to/file.zip /path/to/file

jsonb in Postgres 9.4+

You can use the same query as below, just with jsonb_array_elements().

But rather use the jsonb "contains" operator @> in combination with a matching GIN index on the expression data->'objects':

CREATE INDEX reports_data_gin_idx ON reports
USING gin ((data->'objects') jsonb_path_ops);

SELECT * FROM reports WHERE data->'objects' @> '[{"src":"foo.png"}]';

Since the key objects holds a JSON array, we need to match the structure in the search term and wrap the array element into square brackets, too. Drop the array brackets when searching a plain record.

More explanation and options:

• Index for finding an element in a JSON array

json in Postgres 9.3+

Unnest the JSON array with the function json_array_elements() in a lateral join in the FROM clause and test for its elements:

SELECT data::text, obj
FROM   reports r, json_array_elements(r.data#>'{objects}') obj
WHERE  obj->>'src' = 'foo.png';

db<>fiddle here
_{Old sqlfiddle}

The CTE (WITH query) just substitutes for a table reports.
Or, equivalent for just a single level of nesting:

SELECT *
FROM   reports r, json_array_elements(r.data->'objects') obj
WHERE  obj->>'src' = 'foo.png';

->>, -> and #> operators are explained in the manual.

Both queries use an implicit JOIN LATERAL.

Closely related:

• Query for element of array in JSON column

Try parseInt.

var number = parseInt("10", 10); //number will have value of 10.

Instead of storing the output of grep in a variable and then checking whether the variable is empty, you can do this:

if grep -q "poet" $file_name
then
    echo "poet was found in $file_name"
fi

============

Here are some commonly used tests:

   -d FILE
          FILE exists and is a directory
   -e FILE
          FILE exists
   -f FILE
          FILE exists and is a regular file
   -h FILE
          FILE exists and is a symbolic link (same as -L)
   -r FILE
          FILE exists and is readable
   -s FILE
          FILE exists and has a size greater than zero
   -w FILE
          FILE exists and is writable
   -x FILE
          FILE exists and is executable
   -z STRING
          the length of STRING is zero

Example:

if [ -e "$file_name" ] && [ ! -z "$used_var" ]
then
    echo "$file_name exists and $used_var is not empty"
fi

I was able to achieve this by using set -x in the main script (which makes the script print out every command that is executed) and writing a wrapper script which just shows the last line of output generated by set -x.

This is the main script:

#!/bin/bash
set -x
echo some command here
echo last command

And this is the wrapper script:

#!/bin/sh
./test.sh 2>&1 | grep '^\+' | tail -n 1 | sed -e 's/^\+ //'

Running the wrapper script produces this as output:

echo last command