The keys are accessed using an exclamation point: ${!array[@]}, the values are accessed using ${array[@]}.

You can iterate over the key/value pairs like this:

for i in "${!array[@]}"
do
  echo "key  : $i"
  echo "value: ${array[$i]}"
done

Note the use of quotes around the variable in the for statement (plus the use of @ instead of *). This is necessary in case any keys include spaces.

The confusion in the other answer comes from the fact that your question includes "foo" and "bar" for both the keys and the values.

If you do not want variables to be replaced, you need to surround EOL with single quotes.

cat >/tmp/myconfig.conf <<'EOL'
line 1, ${kernel}
line 2, 
line 3, ${distro}
line 4 line
... 
EOL

Previous example:

$ cat /tmp/myconfig.conf 
line 1, ${kernel}
line 2, 
line 3, ${distro}
line 4 line
... 

dict(rank = int(lst[0]),
                grade = str(lst[1]),
                channel=str(lst[2])),
                videos = float(lst[3].replace(",", " ")),
                subscribers = float(lst[4].replace(",", "")),
                views = float(lst[5].replace(",", "")))

I changed the driver version in pom.xml and helped me

<dependency>
    <groupId>org.postgresql</groupId>
    <artifactId>postgresql</artifactId>
    <version>42.2.2</version>
</dependency>

Here "\n" is also working fine. But the problem here lies in the text editor(probably notepad). Try to see the output with Wordpad.

Looking at your example, I think this is what you want:

var dict = TableObj.ToDictionary(t => t.Key, t=> t.TimeStamp);

char name[10][10]
int i,j,n;//here "n" is number of enteries
printf("\nEnter size of array = ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
    for(j=0;j<1;j++)
    {
        printf("\nEnter name = ");
        scanf("%s",&name[i]);
    }
}
//printing the data
for(i=0;i<n;i++)
{
    for(j=0;j<1;j++)
    {
        printf("%d\t|\t%s\t|\t%s",rollno[i][j],name[i],sex[i]);
    }
    printf("\n");
}

Here try this!!!

    public  bool MojTestPalindrome (string word)
    {
        bool yes = false;

        char[]test1 = word.ToArray();
        char[] test2 = test1.Reverse().ToArray();
        for (int i=0; i< test2.Length; i++)
        {

            if (test1[i] != test2[test2.Length - 1 - i])
            {

                yes = false;
                break;

            }
            else {   
                yes = true;


            }
        }
        if (yes == true)
        {
            return true;
        }
        else

            return false;                
    }

Accepted answer is correct, but I like to define this little utility in most projects I build.

var types = {
   'get': function(prop) {
      return Object.prototype.toString.call(prop);
   },
   'null': '[object Null]',
   'object': '[object Object]',
   'array': '[object Array]',
   'string': '[object String]',
   'boolean': '[object Boolean]',
   'number': '[object Number]',
   'date': '[object Date]',
}

Used like this:

if(types.get(prop) == types.number) {

}

If you're using angular you can even have it cleanly injected:

angular.constant('types', types);

Here is what you are looking for:

String sDate = DateTime.Now.ToString();
DateTime datevalue = (Convert.ToDateTime(sDate.ToString()));

String dy = datevalue.Day.ToString();
String mn = datevalue.Month.ToString();
String yy = datevalue.Year.ToString();

OR

Alternatively, you can use split function to split string date into day, month and year here.

Hope, it will helps you... Cheers. !!

Another obnoxious error type I've encountered in Oracle 11: entries in tnsnames.ora that don't begin at the first column of the line (' XXX=(...)' instead of 'XXX=(...)') and are parsed together with the preceding entry, making it malformed.

Like replaced orr misplaced tnsnames.ora files, this type of problem is easy to diagnose with the tnsping command-line utility: you pass it the name of a tnsnames.ora entry and it gives the complete text of its definition.

here you have the example above using API V3

http://nettique.free.fr/gmap/toolbar.html

I tried above autocomplete="off" and yet anything successful. if you are using angular js my recommendation is to go with button and the ng-click.

<button type="button" class="" ng-click="vm.login()" />

This already have a accepted answer im adding this if someone cant solve the problem with the accepted answer he can go with my mechanism.

Thanks for the question and the answers.

If you have extra fields in the form that not defined in Entity , $form->getData() doesn't work , one way could be this :

$request->get("form")["foo"] 

Or :

$form->get('foo')->getData();

You can also perform this action via SQL Server Management Studio.

Right click on your selected table -> Modify

Right click on the field you want to set as PK --> Set Primary Key

Under Column Properties set "Identity Specification" to Yes, then specify the starting value and increment value.

Then in the future if you want to be able to just script this kind of thing out you can right click on the table you just modified and select

"SCRIPT TABLE AS" --> CREATE TO

so that you can see for yourself the correct syntax to perform this action.

Using Microsoft SQL Server Management Studio you can create Linked Server. First make connection to current (local) server, then go to Server Objects > Linked Servers > context menu > New Linked Server. In window New Linked Server you have to specify desired server name for remote server, real server name or IP address (Data Source) and credentials (Security page).

And further you can select data from linked server:

select * from [linked_server_name].[database].[schema].[table]

In the latest version of ggplot2, this can be more easy.

p <- ggplot(mtcars, aes(wt, mpg))
p + geom_point()
p+ geom_point() + scale_x_continuous(expand = expansion(mult = c(0, 0))) + scale_y_continuous(expand = expansion(mult = c(0, 0)))

See ?expansion() for more details.

document.getElementById('table1').rows[0].cells.length

cells is not a property of a table, rows are. Cells is a property of a row though

I have been writing these and contributing them to BrowserHacks.com since the fall of 2013 -- this one I wrote is very simple and only supported by IE 11.

<style type="text/css">
_:-ms-fullscreen, :root .msie11 { color: blue; }
</style>

and of course the div...

<div class="msie11">
    This is an Internet Explorer 11 CSS Hack
<div>

So the text shows up in blue with internet explorer 11. Have fun with it.

-

More IE and other browser CSS hacks on my live test site here:

UPDATED: http://browserstrangeness.bitbucket.io/css_hacks.html

MIRROR: http://browserstrangeness.github.io/css_hacks.html

(If you are also looking for MS Edge CSS Hacks, that is where to go.)

Looking at your code what you need to do is add the functionality to close the window and update the page. In your "Yes" function you should write:

        buttons: {
            "Ja": function() {
                $.post(a.href);
                $(a). // code to remove the table row
                $("#dialog").dialog("close");
            },
            "Nej": function() { $(this).dialog("close"); }
        },

The code to remove the table row isn't fun to write so I'll let you deal with the nitty gritty details, but basically, you need to tell the dialog what to do after you post it. It may be a smart dialog but it needs some kind of direction.

Do not use sys.exit like this. When called with a string argument, the exit code of your process will be 1, signaling an error condition. The string is printed to standard error to indicate what the error might be. sys.exit is not to be used to provide a "return value" for your script.

Instead, you should simply print the "return value" to standard output using a print statement, then call sys.exit(0), and capture the output in the shell.

Perhaps you're asking about the DOM methods appendChild and insertBefore.

parentNode.insertBefore(newChild, refChild)

Inserts the node newChild as a child of parentNode before the existing child node refChild. (Returns newChild.)

If refChild is null, newChild is added at the end of the list of children. Equivalently, and more readably, use parentNode.appendChild(newChild).

You can use querySelectorAll to get all span elements and then use new ES2015 (ES6) spread operator convert StaticNodeList that querySelectorAll returns to array of spans, and then use map operator to get list of items.

See example bellow

([...document.querySelectorAll('#test span')]).map(x => console.log(x.innerHTML))

<div id="test">_x000D_
    <span>1</span>_x000D_
    <span>2</span>_x000D_
    <span>3</span>_x000D_
    <span>4</span>_x000D_
<div>

Extending @Valeh Hajiyev great and clear answer for mysqli driver tests:

Debug your database connection using this script at the end of ./config/database.php:

/* Your db config here */ 
$db['default'] = array(
  // ...
  'dbdriver'     => 'mysqli',
  // ...
);

/* Connection test: */

echo '<pre>';
print_r($db['default']);
echo '</pre>';

echo 'Connecting to database: ' .$db['default']['database'];

$mysqli_connection = new MySQLi($db['default']['hostname'],
                                $db['default']['username'],
                                $db['default']['password'], 
                                $db['default']['database']);

if ($mysqli_connection->connect_error) {
   echo "Not connected, error: " . $mysqli_connection->connect_error;
}
else {
   echo "Connected.";
}
die( 'file: ' .__FILE__ . ' Line: ' .__LINE__);

well in your onitemClick you will send the selected value like deal , and send it in your intent when opening new activity and in your new activity get the sent data and related to selected item will display your data

to get the name from the list

String item = yourData.get(position).getName(); 

to set data in intent

intent.putExtra("Key", item);

to get the data in second activity

getIntent().getExtras().getString("Key")

I just took the helper-function from Xander and improved it with the answers before:

function last($array){
  $keys = array_keys($array);
  return end($keys);
}


$arr = array("one" => "apple", "two" => "orange", "three" => "pear");    
echo last($arr);
echo $arr(last($arr));

Whenever you try to show a Link on a page thats outside the BrowserRouter you will get that error.

This error message is essentially saying that any component that is not a child of our <Router> cannot contain any React Router related components.

You need to migrate your component hierarchy to how you see it in the first answer above. For anyone else reviewing this post who may need to look at more examples.

Let's say you have a Header.jscomponent that looks like this:

import React from 'react';
import { Link } from 'react-router-dom';

const Header = () => {
    return (
        <div className="ui secondary pointing menu">
            <Link to="/" className="item">
                Streamy
            </Link>
            <div className="right menu">
                <Link to="/" className="item">
                    All Streams
                </Link>
            </div>
        </div>
    );
};

export default Header;

And your App.js file looks like this:

import React from 'react';
import { BrowserRouter, Route, Link } from 'react-router-dom';
import StreamCreate from './streams/StreamCreate';
import StreamEdit from './streams/StreamEdit';
import StreamDelete from './streams/StreamDelete';
import StreamList from './streams/StreamList';
import StreamShow from './streams/StreamShow';
import Header from './Header';

const App = () => {
  return (
    <div className="ui container">
      <Header />
      <BrowserRouter>
        <div>
        <Route path="/" exact component={StreamList} />
        <Route path="/streams/new" exact component={StreamCreate} />
        <Route path="/streams/edit" exact component={StreamEdit} />
        <Route path="/streams/delete" exact component={StreamDelete} />
        <Route path="/streams/show" exact component={StreamShow} />
        </div> 
      </BrowserRouter>
    </div>
  );
};

export default App;

Notice that the Header.js component is making use of the Link tag from react-router-dom but the componet was placed outside the <BrowserRouter>, this will lead to the same error as the one experience by the OP. In this case, you can make the correction in one move:

import React from 'react';
import { BrowserRouter, Route } from 'react-router-dom';
import StreamCreate from './streams/StreamCreate';
import StreamEdit from './streams/StreamEdit';
import StreamDelete from './streams/StreamDelete';
import StreamList from './streams/StreamList';
import StreamShow from './streams/StreamShow';
import Header from './Header';

const App = () => {
  return (
    <div className="ui container">
      <BrowserRouter>
        <div>
        <Header />
        <Route path="/" exact component={StreamList} />
        <Route path="/streams/new" exact component={StreamCreate} />
        <Route path="/streams/edit" exact component={StreamEdit} />
        <Route path="/streams/delete" exact component={StreamDelete} />
        <Route path="/streams/show" exact component={StreamShow} />
        </div> 
      </BrowserRouter>
    </div>
  );
};

export default App;

Please review carefully and ensure you have the <Header /> or whatever your component may be inside of not only the <BrowserRouter> but also inside of the <div>, otherwise you will also get the error that a Router may only have one child which is referring to the <div> which is the child of <BrowserRouter>. Everything else such as Route and components must go within it in the hierarchy.

So now the <Header /> is a child of the <BrowserRouter> within the <div> tags and it can successfully make use of the Link element.

You should run your code in a following manner in order get your output,

python file_name.py user_name

Regex.Matches(input, "true").Count

Yes, it is very frustrating that dbms_utility.comma_to_table only supports comma delimieted lists and then only when elements in the list are valid PL/SQL identifies (so numbers cause an error).

I have created a generic parsing package that will do what you need (pasted below). It is part of my "demo.zip" file, a repository of over 2000 files that support my training materials, all available at PL/SQL Obsession: www.toadworld.com/SF.

Regards, Steven Feuerstein www.plsqlchallenge.com (daily PL/SQL quiz)

    CREATE OR REPLACE PACKAGE parse
/*
   Generalized delimited string parsing package

   Author: Steven Feuerstein, [email protected]

   Latest version always available on PL/SQL Obsession: 

   www.ToadWorld.com/SF

   Click on "Trainings, Seminars and Presentations" and
   then download the demo.zip file.

   Modification History
      Date          Change
      10-APR-2009   Add support for nested list variations

   Notes:
     * This package does not validate correct use of delimiters.
       It assumes valid construction of lists.
     * Import the Q##PARSE.qut file into an installation of 
       Quest Code Tester 1.8.3 or higher in order to run
       the regression test for this package.

*/
IS
   SUBTYPE maxvarchar2_t IS VARCHAR2 (32767);

   /*
   Each of the collection types below correspond to (are returned by)
   one of the parse functions.

   items_tt - a simple list of strings
   nested_items_tt - a list of lists of strings
   named_nested_items_tt - a list of named lists of strings

   This last type also demonstrates the power and elegance of string-indexed
   collections. The name of the list of elements is the index value for
   the "outer" collection.
   */
   TYPE items_tt IS TABLE OF maxvarchar2_t
                       INDEX BY PLS_INTEGER;

   TYPE nested_items_tt IS TABLE OF items_tt
                              INDEX BY PLS_INTEGER;

   TYPE named_nested_items_tt IS TABLE OF items_tt
                                    INDEX BY maxvarchar2_t;

   /*
   Parse lists with a single delimiter.
   Example: a,b,c,d

   Here is an example of using this function:

   DECLARE
      l_list parse.items_tt;
   BEGIN
      l_list := parse.string_to_list ('a,b,c,d', ',');
   END;
   */
   FUNCTION string_to_list (string_in IN VARCHAR2, delim_in IN VARCHAR2)
      RETURN items_tt;

   /*
   Parse lists with nested delimiters.
   Example: a,b,c,d|1,2,3|x,y,z

   Here is an example of using this function:

   DECLARE
      l_list parse.nested_items_tt;
   BEGIN
      l_list := parse.string_to_list ('a,b,c,d|1,2,3,4', '|', ',');
   END;
   */
   FUNCTION string_to_list (string_in      IN VARCHAR2
                          , outer_delim_in IN VARCHAR2
                          , inner_delim_in IN VARCHAR2
                           )
      RETURN nested_items_tt;

   /*
   Parse named lists with nested delimiters.
   Example: letters:a,b,c,d|numbers:1,2,3|names:steven,george

   Here is an example of using this function:

   DECLARE
      l_list parse.named_nested_items_tt;
   BEGIN
   l_list := parse.string_to_list ('letters:a,b,c,d|numbers:1,2,3,4', '|', ':', ',');
   END;
   */
   FUNCTION string_to_list (string_in      IN VARCHAR2
                          , outer_delim_in IN VARCHAR2
                          , name_delim_in  IN VARCHAR2
                          , inner_delim_in IN VARCHAR2
                           )
      RETURN named_nested_items_tt;

   PROCEDURE display_list (string_in IN VARCHAR2
                         , delim_in  IN VARCHAR2:= ','
                          );

   PROCEDURE display_list (string_in      IN VARCHAR2
                         , outer_delim_in IN VARCHAR2
                         , inner_delim_in IN VARCHAR2
                          );

   PROCEDURE display_list (string_in      IN VARCHAR2
                         , outer_delim_in IN VARCHAR2
                         , name_delim_in  IN VARCHAR2
                         , inner_delim_in IN VARCHAR2
                          );

   PROCEDURE show_variations;

   /* Helper function for automated testing */
   FUNCTION nested_eq (list1_in    IN items_tt
                     , list2_in    IN items_tt
                     , nulls_eq_in IN BOOLEAN
                      )
      RETURN BOOLEAN;

END parse;
/

CREATE OR REPLACE PACKAGE BODY parse
IS
   FUNCTION string_to_list (string_in IN VARCHAR2, delim_in IN VARCHAR2)
      RETURN items_tt
   IS
      c_end_of_list   CONSTANT PLS_INTEGER := -99;
      l_item          maxvarchar2_t;
      l_startloc      PLS_INTEGER := 1;
      items_out       items_tt;

      PROCEDURE add_item (item_in IN VARCHAR2)
      IS
      BEGIN
         IF item_in = delim_in
         THEN
            /* We don't put delimiters into the collection. */
            NULL;
         ELSE
            items_out (items_out.COUNT + 1) := item_in;
         END IF;
      END;

      PROCEDURE get_next_item (string_in         IN     VARCHAR2
                             , start_location_io IN OUT PLS_INTEGER
                             , item_out             OUT VARCHAR2
                              )
      IS
         l_loc   PLS_INTEGER;
      BEGIN
         l_loc := INSTR (string_in, delim_in, start_location_io);

         IF l_loc = start_location_io
         THEN
            /* A null item (two consecutive delimiters) */
            item_out := NULL;
         ELSIF l_loc = 0
         THEN
            /* We are at the last item in the list. */
            item_out := SUBSTR (string_in, start_location_io);
         ELSE
            /* Extract the element between the two positions. */
            item_out :=
               SUBSTR (string_in
                     , start_location_io
                     , l_loc - start_location_io
                      );
         END IF;

         IF l_loc = 0
         THEN
            /* If the delimiter was not found, send back indication
               that we are at the end of the list. */

            start_location_io := c_end_of_list;
         ELSE
            /* Move the starting point for the INSTR search forward. */
            start_location_io := l_loc + 1;
         END IF;
      END get_next_item;
   BEGIN
      IF string_in IS NULL OR delim_in IS NULL
      THEN
         /* Nothing to do except pass back the empty collection. */
         NULL;
      ELSE
         LOOP
            get_next_item (string_in, l_startloc, l_item);
            add_item (l_item);
            EXIT WHEN l_startloc = c_end_of_list;
         END LOOP;
      END IF;

      RETURN items_out;
   END string_to_list;

   FUNCTION string_to_list (string_in      IN VARCHAR2
                          , outer_delim_in IN VARCHAR2
                          , inner_delim_in IN VARCHAR2
                           )
      RETURN nested_items_tt
   IS
      l_elements   items_tt;
      l_return     nested_items_tt;
   BEGIN
      /* Separate out the different lists. */
      l_elements := string_to_list (string_in, outer_delim_in);

      /* For each list, parse out the separate items
         and add them to the end of the list of items
         for that list. */   
      FOR indx IN 1 .. l_elements.COUNT
      LOOP
         l_return (l_return.COUNT + 1) :=
            string_to_list (l_elements (indx), inner_delim_in);
      END LOOP;

      RETURN l_return;
   END string_to_list;

   FUNCTION string_to_list (string_in      IN VARCHAR2
                          , outer_delim_in IN VARCHAR2
                          , name_delim_in  IN VARCHAR2
                          , inner_delim_in IN VARCHAR2
                           )
      RETURN named_nested_items_tt
   IS
      c_name_position constant pls_integer := 1;
      c_items_position constant pls_integer := 2;
      l_elements          items_tt;
      l_name_and_values   items_tt;
      l_return            named_nested_items_tt;
   BEGIN
      /* Separate out the different lists. */
      l_elements := string_to_list (string_in, outer_delim_in);

      FOR indx IN 1 .. l_elements.COUNT
      LOOP
         /* Extract the name and the list of items that go with 
            the name. This collection always has just two elements:
              index 1 - the name
              index 2 - the list of values
         */
         l_name_and_values :=
            string_to_list (l_elements (indx), name_delim_in);
         /*
         Use the name as the index value for this list.
         */
         l_return (l_name_and_values (c_name_position)) :=
            string_to_list (l_name_and_values (c_items_position), inner_delim_in);
      END LOOP;

      RETURN l_return;
   END string_to_list;

   PROCEDURE display_list (string_in IN VARCHAR2
                         , delim_in  IN VARCHAR2:= ','
                          )
   IS
      l_items   items_tt;
   BEGIN
      DBMS_OUTPUT.put_line (
         'Parse "' || string_in || '" using "' || delim_in || '"'
      );

      l_items := string_to_list (string_in, delim_in);

      FOR indx IN 1 .. l_items.COUNT
      LOOP
         DBMS_OUTPUT.put_line ('> ' || indx || ' = ' || l_items (indx));
      END LOOP;
   END display_list;

   PROCEDURE display_list (string_in      IN VARCHAR2
                         , outer_delim_in IN VARCHAR2
                         , inner_delim_in IN VARCHAR2
                          )
   IS
      l_items   nested_items_tt;
   BEGIN
      DBMS_OUTPUT.put_line(   'Parse "'
                           || string_in
                           || '" using "'
                           || outer_delim_in
                           || '-'
                           || inner_delim_in
                           || '"');
      l_items := string_to_list (string_in, outer_delim_in, inner_delim_in);


      FOR outer_index IN 1 .. l_items.COUNT
      LOOP
         DBMS_OUTPUT.put_line(   'List '
                              || outer_index
                              || ' contains '
                              || l_items (outer_index).COUNT
                              || ' elements');

         FOR inner_index IN 1 .. l_items (outer_index).COUNT
         LOOP
            DBMS_OUTPUT.put_line(   '> Value '
                                 || inner_index
                                 || ' = '
                                 || l_items (outer_index) (inner_index));
         END LOOP;
      END LOOP;
   END display_list;

   PROCEDURE display_list (string_in      IN VARCHAR2
                         , outer_delim_in IN VARCHAR2
                         , name_delim_in  IN VARCHAR2
                         , inner_delim_in IN VARCHAR2
                          )
   IS
      l_items   named_nested_items_tt;
      l_index   maxvarchar2_t;
   BEGIN
      DBMS_OUTPUT.put_line(   'Parse "'
                           || string_in
                           || '" using "'
                           || outer_delim_in
                           || '-'
                           || name_delim_in
                           || '-'
                           || inner_delim_in
                           || '"');
      l_items :=
         string_to_list (string_in
                       , outer_delim_in
                       , name_delim_in
                       , inner_delim_in
                        );

      l_index := l_items.FIRST;

      WHILE (l_index IS NOT NULL)
      LOOP
         DBMS_OUTPUT.put_line(   'List "'
                              || l_index
                              || '" contains '
                              || l_items (l_index).COUNT
                              || ' elements');

         FOR inner_index IN 1 .. l_items (l_index).COUNT
         LOOP
            DBMS_OUTPUT.put_line(   '> Value '
                                 || inner_index
                                 || ' = '
                                 || l_items (l_index) (inner_index));
         END LOOP;

         l_index := l_items.NEXT (l_index);
      END LOOP;
   END display_list;

   PROCEDURE show_variations
   IS
      PROCEDURE show_header (title_in IN VARCHAR2)
      IS
      BEGIN
         DBMS_OUTPUT.put_line (RPAD ('=', 60, '='));
         DBMS_OUTPUT.put_line (title_in);
         DBMS_OUTPUT.put_line (RPAD ('=', 60, '='));
      END show_header;
   BEGIN
      show_header ('Single Delimiter Lists');
      display_list ('a,b,c');
      display_list ('a;b;c', ';');
      display_list ('a,,b,c');
      display_list (',,b,c,,');

      show_header ('Nested Lists');
      display_list ('a,b,c,d|1,2,3|x,y,z', '|', ',');

      show_header ('Named, Nested Lists');
      display_list ('letters:a,b,c,d|numbers:1,2,3|names:steven,george'
                  , '|'
                  , ':'
                  , ','
                   );
   END;

   FUNCTION nested_eq (list1_in    IN items_tt
                     , list2_in    IN items_tt
                     , nulls_eq_in IN BOOLEAN
                      )
      RETURN BOOLEAN
   IS
      l_return   BOOLEAN := list1_in.COUNT = list2_in.COUNT;
      l_index    PLS_INTEGER := 1;
   BEGIN
      WHILE (l_return AND l_index IS NOT NULL)
      LOOP
         l_return := list1_in (l_index) = list2_in (l_index);
         l_index := list1_in.NEXT (l_index);
      END LOOP;

      RETURN l_return;
   EXCEPTION
      WHEN NO_DATA_FOUND
      THEN
         RETURN FALSE;
   END nested_eq;
END;
/

Use java.util.LinkedList. Like this:

list = new java.util.LinkedList()

In my case I am behind a proxy with dynamic settings.

I had to download the settings script by picking the script address from internet settings at
Chrome > Settings > Show Advanced Settings > Change proxy Settings > Internet Properties > Connections > LAN Settings > Use automatic configuration script > Address

Opening this URL in a browser downloads a PAC file which I opened in a text editor

• Look for a PROXY string, it should contain a hostname and port
• Copy values into gradle.properties

systemProp.https.proxyHost=blabla.domain.com
systemProp.https.proxyPort=8081

• I didn't have to specify a user not password.

Ruby (Cucumber)

After do |scenario| 
    if(scenario.failed?)
        puts "after step is executed"
    end
    time = Time.now.strftime('%a_%e_%Y_%l_%m_%p_%M')

    file_path = File.expand_path(File.dirname(__FILE__) + '/../../../../../mlife_screens_shot')+'/'+time +'.png'

    page.driver.browser.save_screenshot file_path
end

Given /^snapshot$/ do
    time = Time.now.strftime('%a_%e_%Y_%l_%m_%p_%M')

    file_path = File.expand_path(File.dirname(__FILE__) + '/../../../../../mlife_screens_shot')+'/'+time +'.png'
    page.driver.browser.save_screenshot file_path
end

You can't directly edit your path to execute of a service. For that you can use sc command,

SC CONFIG ServiceName binPath= "Path of your file"

Eg:

sc config MongoDB binPath="I:\Programming\MongoDB\MongoDB\bin\mongod.exe --config I:\Programming\MongoDB\MongoDB\bin\mongod.cfg --service"

XPath 2 has a lower-case (and upper-case) string function. That's not quite the same as case-insensitive, but hopefully it will be close enough:

//CD[lower-case(@title)='empire burlesque']

If you are using XPath 1, there is a hack using translate.

Since there are so many ways to solve this, let's start by defining what we want to see in our solution.

1. Bash provides a builtin readarray for this purpose. Let's use it.
2. Avoid ugly and unnecessary tricks such as changing IFS, looping, using eval, or adding an extra element then removing it.
3. Find a simple, readable approach that can easily be adapted to similar problems.

The readarray command is easiest to use with newlines as the delimiter. With other delimiters it may add an extra element to the array. The cleanest approach is to first adapt our input into a form that works nicely with readarray before passing it in.

The input in this example does not have a multicharacter delimiter. If we apply a little common sense, it's best understood as comma separated input for which each element may need to be trimmed. My solution is to split the input by comma into multiple lines, trim each element, and pass it all to readarray.

string='  Paris,France  ,   All of Europe  '
readarray -t foo < <(tr ',' '\n' <<< "$string" |sed 's/^ *//' |sed 's/ *$//')
declare -p foo

# declare -a foo='([0]="Paris" [1]="France" [2]="All of Europe")'

This is the natural javascript option

var myArray = ['1','2',3,4]_x000D_
_x000D_
myArray.forEach(function(value){_x000D_
  console.log(value);_x000D_
});

However it won't work if you're using await inside the forEach loop because forEach is not asynchronous. you'll be forced to use the second answer or some other equivalent:

let myArray = ["a","b","c","d"];_x000D_
for (let item of myArray) {_x000D_
  console.log(item);_x000D_
}

Or you could create an asyncForEach explained here:

https://codeburst.io/javascript-async-await-with-foreach-b6ba62bbf404

If you go the brew route, the best way to install would be:

brew install macvim --with-override-system-vim

That will provide mvim, vim, vi, view, etc. in /usr/local/bin (all symlinked to the copy in the Cellar). This also removes the need to create any aliases and also changes your vi, vim, etc. to all use the same Vim distribution as your MacVim.

var dd = document.getElementById("dropdownID");
var selectedItem = dd.options[dd.selectedIndex].value;

You may need to consider some further aspects for code robustness;

when you're storing an integer-valued variable as an environment variable, try

os.environ['DEBUSSY'] = str(myintvariable)

then for retrieval, consider that to avoid errors, you should try

os.environ.get('DEBUSSY', 'Not Set')

possibly substitute '-1' for 'Not Set'

so, to put that all together

myintvariable = 1
os.environ['DEBUSSY'] = str(myintvariable)
strauss = int(os.environ.get('STRAUSS', '-1'))
# NB KeyError <=> strauss = os.environ['STRAUSS']
debussy = int(os.environ.get('DEBUSSY', '-1'))

print "%s %u, %s %u" % ('Strauss', strauss, 'Debussy', debussy)

Example: index = False

import pandas as pd

writer = pd.ExcelWriter("dataframe.xlsx", engine='xlsxwriter')
dataframe.to_excel(writer,sheet_name = dataframe, index=False)
writer.save() 

Take out the method name from in your import statement. e.g.

import Dan.Vik.disp;

becomes:

import Dan.Vik;

To delete a cookie with JQuery, set the value to null:

$.cookie("name", null, { path: '/' });

Edit: The final solution was to explicitly specify the path property whenever accessing the cookie, because the OP accesses the cookie from multiple pages in different directories, and thus the default paths were different (this was not described in the original question). The solution was discovered in discussion below, which explains why this answer was accepted - despite not being correct.

For some versions jQ cookie the solution above will set the cookie to string null. Thus not removing the cookie. Use the code as suggested below instead.

$.removeCookie('the_cookie', { path: '/' });

In my case I finally made it with

import java.lang.Thread;
import java.io.BufferedReader;
import java.io.InputStreamReader;

final BufferedReader in = new BufferedReader(new InputStreamReader(
      Thread.currentThread().getContextClassLoader().getResourceAsStream("file.txt"))
); // no initial slash in file.txt

That was much more painful than it ought to have been.

It turns out there are two concepts, the format of the data and the format of the axis. You need to format the data series as a time, then you format the graph's display axis as date and time.

Graph your data

Highlight all columns and insert your graph

Format datetime cells

Select the column, right click, format cells. Select time so that the data is in time format.

Now format the axis

Now right click on the axis text and change it to display whatever format you want

You have said you can only load scripts from your own site (self). You have then tried to load a script from another site (www.google.com) and, because you've restricted this, you can't. That's the whole point of Content Security Policy (CSP).

You can change your first line to:

<meta http-equiv="Content-Security-Policy" content="default-src *; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval' http://www.google.com">

Or, alternatively, it may be worth removing that line completely until you find out more about CSP. Your current CSP is pretty lax anyway (allowing unsafe-inline, unsafe-eval and a default-src of *), so it is probably not adding too much value, to be honest.

Per the request of @skeller88, I am reposting my comment as an answer so that it doesn't get lost by people who don't read every response...

The problem with DataGrip is that it puts a grip on your wallet. It is not free. Try the community edition of DBeaver at dbeaver.io. It is a FOSS multi-platform database tool for SQL programmers, DBAs and analysts that supports all popular databases: MySQL, PostgreSQL, SQLite, Oracle, DB2, SQL Server, Sybase, MS Access, Teradata, Firebird, Hive, Presto, etc.

DBeaver Community Edition makes it trivial to connect to a database, issue queries to retrieve data, and then download the result set to save it to CSV, JSON, SQL, or other common data formats. It's a viable FOSS competitor to TOAD for Postgres, TOAD for SQL Server, or Toad for Oracle.

I have no affiliation with DBeaver. I love the price and functionality, but I wish they would open up the DBeaver/Eclipse application more and made it easy to add analytics widgets to DBeaver / Eclipse, rather than requiring users to pay for the annual subscription to create graphs and charts directly within the application. My Java coding skills are rusty and I don't feel like taking weeks to relearn how to build Eclipse widgets, only to find that DBeaver has disabled the ability to add third-party widgets to the DBeaver Community Edition.

Do DBeaver users have insight as to the steps to create analytics widgets to add into the Community Edition of DBeaver?

I needed to add an additional Maven dependency:

    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-config</artifactId>
        <version>3.0.1.RELEASE</version>
    </dependency>

In my case, my VS2015 installed without select C++ package, and VS2017 is installed with C++ package. If I use VS2015 open C++ project will show this error, and using VS2017 will be no error.

Try this way:

select * from tab
where DateCol between DateAdd(DD,-7,GETDATE() ) and GETDATE() 

I suggest you to use fnmatch and the upper method. In this way you can find any of the following:

1. Name.txt;
2. Name.TXT;
3. Name.Txt

.

import fnmatch
import os

    for file in os.listdir("/Users/Johnny/Desktop/MyTXTfolder"):
        if fnmatch.fnmatch(file.upper(), '*.TXT'):
            print(file)

You can just convert everything to lowercase for the purposes of sorting:

SELECT * FROM NOTES ORDER BY LOWER(title);

If you want to make sure that the uppercase ones still end up ahead of the lowercase ones, just add that as a secondary sort:

SELECT * FROM NOTES ORDER BY LOWER(title), title;

The {glue} package offers string interpolation. In the example, {wd} is substituted with the contents of the variable. Complex expressions are also supported.

library(glue)

wd <- getwd()
glue("Current working dir: {wd}")
#> Current working dir: /tmp/RtmpteMv88/reprex46156826ee8c

^{Created on 2019-05-13 by the reprex package (v0.2.1)}

Note how the printed output doesn't contain the [1] artifacts and the " quotes, for which other answers use cat().

public static class Webdriver
{        
    public static void ExecuteJavaScript(string scripts)
    {
        IJavaScriptExecutor js = (IJavaScriptExecutor)driver;
        js.ExecuteScript(scripts);
    }

    public static T ExecuteJavaScript<T>(string scripts)
    {
        IJavaScriptExecutor js = (IJavaScriptExecutor)driver;
        return (T)js.ExecuteScript(scripts);
    }
}

In your code you can then do

string test = Webdriver.ExecuteJavaScript<string>(" return 'hello World'; ");
int test = Webdriver.ExecuteJavaScript<int>(" return 3; ");

When I had to rasterize svgs on the server, I ended up using P/Invoke to call librsvg functions (you can get the dlls from a windows version of the GIMP image editing program).

[DllImport("kernel32.dll", SetLastError = true)]
static extern bool SetDllDirectory(string pathname);

[DllImport("libgobject-2.0-0.dll", SetLastError = true)]
static extern void g_type_init(); 

[DllImport("librsvg-2-2.dll", SetLastError = true)]
static extern IntPtr rsvg_pixbuf_from_file_at_size(string file_name, int width, int height, out IntPtr error);

[DllImport("libgdk_pixbuf-2.0-0.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
static extern bool gdk_pixbuf_save(IntPtr pixbuf, string filename, string type, out IntPtr error, __arglist);

public static void RasterizeSvg(string inputFileName, string outputFileName)
{
    bool callSuccessful = SetDllDirectory("C:\\Program Files\\GIMP-2.0\\bin");
    if (!callSuccessful)
    {
        throw new Exception("Could not set DLL directory");
    }
    g_type_init();
    IntPtr error;
    IntPtr result = rsvg_pixbuf_from_file_at_size(inputFileName, -1, -1, out error);
    if (error != IntPtr.Zero)
    {
        throw new Exception(Marshal.ReadInt32(error).ToString());
    }
    callSuccessful = gdk_pixbuf_save(result, outputFileName, "png", out error, __arglist(null));
    if (!callSuccessful)
    {
        throw new Exception(error.ToInt32().ToString());
    }
}

This error occurs when you compile a java program using classes that support the Servlet API. The compiler searches for the library (included in a .jar file) by using the CLASSPATH. You can specify this when you compile using -classpath or -cp options as noted in other responses, but you should set up your environment to define the classpath as needed.

Set the CLASSPATH environment variable to reference the location of servlet-api.jar, which depends on your setup (OS, how you installed, etc.)

Assuming you're using Tomcat and have installed it in one of 20 possible ways, the APIs used by servlets will be installed on your system, relative to wherever Tomcat is installed. For historical reasons, Tomcat is also known as "Catalina", so you can use the command "catalina" to run certain commands, and alone, it will report, amongst other things the CATALINA_BASE. For example on my Mac using Tomcat installed using homebrew it's

Using CATALINA_BASE:   /usr/local/Cellar/tomcat/8.5.9/libexec

The location of the Tomcat servlet libraries is under this in the lib directory. Set CATALINA_BASE, then set CLASSPATH using the base as a start, for example for Linux or OSX you might set this in .profile, or .bash_profile like so:

export CATALINA_BASE=/usr/local/Cellar/tomcat/8.5.9/libexec
export CLASSPATH=$CATALINA_BASE/lib/servlet-api.jar:$CLASSPATH

Exit the terminal/shell and come back in to run the profile. You should be able to see that the variable is set by using the echo command, e.g.

echo $CLASSPATH

or in Windows

echo %CLASSPATH%

If it displays the full path to the jar `javac WebTest.java' compile your class.

Other answers are correct -- set up your IDE (Eclipse, IntelliJ) to know about Tomcat or build with Maven and you'll save pain.

Came here searching for best practices in abstracting code to submodules when working in Notebooks. I'm not sure that there is a best practice. I have been proposing this.

A project hierarchy as such:

+-- ipynb
¦   +-- 20170609-Examine_Database_Requirements.ipynb
¦   +-- 20170609-Initial_Database_Connection.ipynb
+-- lib
    +-- __init__.py
    +-- postgres.py

And from 20170609-Initial_Database_Connection.ipynb:

    In [1]: cd ..

    In [2]: from lib.postgres import database_connection

This works because by default the Jupyter Notebook can parse the cd command. Note that this does not make use of Python Notebook magic. It simply works without prepending %bash.

Considering that 99 times out of a 100 I am working in Docker using one of the Project Jupyter Docker images, the following modification is idempotent

    In [1]: cd /home/jovyan

    In [2]: from lib.postgres import database_connection

This is what worked for me:

recyclerView.setAdapter(new RecyclerViewAdapter(newList));
recyclerView.invalidate();

After creating a new adapter that contains the updated list (in my case it was a database converted into an ArrayList) and setting that as adapter, I tried recyclerView.invalidate() and it worked.

Android ready county list and flag images

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <!-- country list -->
    <string-array name="data000">
        <item name="code">+93</item>
        <item name="country">Afghanistan</item>
        <item name="iso">AF</item>
        <item name="flag">@drawable/afghanistan</item>
    </string-array>
    <string-array name="data001">
        <item name="code">+355</item>
        <item name="country">Albania</item>
        <item name="iso">AL</item>
        <item name="flag">@drawable/albania</item>
    </string-array>
    ...

    <array name="countries">
        <item>@array/data000</item>
        <item>@array/data001</item>
        ...
    </array>
</resources>

I am on macOS and I had used brew but what Vaulstein mentioned in his answer didn't cover my case.

I run the following commands to make sure my current python was not installed by brew

brew list | grep python           
python
python@2

brew info python
[email protected]: stable 3.8.3 (bottled)
Interpreted, interactive, object-oriented programming language
https://www.python.org/
Not installed
... 

So I download the latest 3.8.5 from https://www.python.org/ and when installing it I saw following information

Certificate verification and OpenSSL

This package includes its own private copy of OpenSSL 1.1.1. The trust certificates in system and user keychains managed by the Keychain Access application and the security command line utility are not used as defaults by the Python ssl module

After installed 3.8.5 it fixed the problem.

The best and easy way to pass single or multiple variables to view from controller is to use compact() method.

For passing single variable to view,

return view("user/regprofile",compact('students'));

For passing multiple variable to view,

return view("user/regprofile",compact('students','teachers','others'));

And in view, you can easily loop through the variable,

@foreach($students as $student)
   {{$student}}
@endforeach

Non-inherited elements must have default styles set.
If parent class set color:white and font-weight:bold style then no inherited child must set 'color:black' and font-weight: normal in their class. If style is not set, elements get their style from their parents.

You can use parents() to get all parents with the given selector.

Description: Get the ancestors of each element in the current set of matched elements, optionally filtered by a selector.

But parent() will get just the first parent of the element.

Description: Get the parent of each element in the current set of matched elements, optionally filtered by a selector.

jQuery parent() vs. parents()

And there is .parentsUntil() which I think will be the best.

Description: Get the ancestors of each element in the current set of matched elements, up to but not including the element matched by the selector.

The answer is to use a JSONArray as well, and to dive "deep" into the tree structure:

JSONArray arr = new JSONArray();
arr.put (...); // a new JSONObject()
arr.put (...); // a new JSONObject()

JSONObject json = new JSONObject();
json.put ("aoColumnDefs",arr);

Perhaps this will work?

<c:forEach items="${myParams.items}" var="currentItem" varStatus="stat">
  <c:set var="myVar" value="${stat.first ? '' : myVar} ${currentItem}" />
</c:forEach>

I would use

WHERE columnName LIKE '%[%]%'

SQL Server stores string summary statistics for use in estimating the number of rows that will match a LIKE clause. The cardinality estimates can be better and lead to a more appropriate plan when the square bracket syntax is used.

The response to this Connect Item states

We do not have support for precise cardinality estimation in the presence of user defined escape characters. So we probably get a poor estimate and a poor plan. We'll consider addressing this issue in a future release.

An example

CREATE TABLE T
(
X VARCHAR(50),
Y CHAR(2000) NULL
)

CREATE NONCLUSTERED INDEX IX ON T(X)

INSERT INTO T (X)
SELECT TOP (5) '10% off'
FROM master..spt_values
UNION ALL
SELECT  TOP (100000)  'blah'
FROM master..spt_values v1,  master..spt_values v2


SET STATISTICS IO ON;
SELECT *
FROM T 
WHERE X LIKE '%[%]%'

SELECT *
FROM T
WHERE X LIKE '%\%%' ESCAPE '\'

Shows 457 logical reads for the first query and 33,335 for the second.

Here is a more efficient version which uses on for all contenteditables. It's based off the top answers here.

$('body').on('focus', '[contenteditable]', function() {
    const $this = $(this);
    $this.data('before', $this.html());
}).on('blur keyup paste input', '[contenteditable]', function() {
    const $this = $(this);
    if ($this.data('before') !== $this.html()) {
        $this.data('before', $this.html());
        $this.trigger('change');
    }
});

The project is here: https://github.com/balupton/html5edit

I suggest to have array of buffers and concat to resulting buffer only once at the end. Its easy to do manually, or one could use node-buffers

You can easily define such function and use it then:

ifnull <- function(x,y) {
  if(is.na(x)==TRUE) 
    return (y)
  else 
    return (x);
}

or same minified version:

ifnull <- function(x,y) {if(is.na(x)==TRUE) return (y) else return (x);}

I just ran a page of side by sides comparisons and unless something has changed recently, I could see no better downsizing (scaling) using canvas vs. simple css. I tested in FF6 Mac OSX 10.7. Still slightly soft vs. the original.

I did however stumble upon something that did make a huge difference and that was using image filters in browsers that support canvas. You can actually manipulate images much like you can in Photoshop with blur, sharpen, saturation, ripple, grayscale, etc.

I then found an awesome jQuery plug-in which makes application of these filters a snap: http://codecanyon.net/item/jsmanipulate-jquery-image-manipulation-plugin/428234

I simply apply the sharpen filter right after resizing the image which should give you the desired effect. I didn't even have to use a canvas element.

REST is not necessarily tied to HTTP. RESTful web services are just web services that follow a RESTful architecture.

What is Rest -
1- Client-server
2- Stateless
3- Cacheable
4- Layered system
5- Code on demand
6- Uniform interface

var rotator = function(){
  widget.Rotator.rotate();
  setTimeout(rotator,5000);
};
rotator();

Or:

setInterval(
  function(){ widget.Rotator.rotate() },
  5000
);

Or:

setInterval(
  widget.Rotator.rotate.bind(widget.Rotator),
  5000
);

You must create a migration, where you will specify default value for a new field, since you don't want it to be null. If null is not required, simply add null=True and create and run migration.

The basic syntax for using ternary operator is like this:

(condition) ? (if_true) : (if_false)

For you case it is like this:

number < 0 ? bigInt.sign = 0 : bigInt.sign = 1;

However, if you do end up using rm instead of git rm. You can skip the git add and directly commit the changes using:

git commit -a

You could join the table against itself:

select
   t.jobId, t.jobName,
   count(p1.jobId) as Priority1,
   count(p2.jobId) as Priority2,
   count(p3.jobId) as Priority3,
   count(p4.jobId) as Priority4,
   count(p5.jobId) as Priority5
from
   theTable t
   left join theTable p1 on p1.jobId = t.jobId and p1.jobName = t.jobName and p1.Priority = 1
   left join theTable p2 on p2.jobId = t.jobId and p2.jobName = t.jobName and p2.Priority = 2
   left join theTable p3 on p3.jobId = t.jobId and p3.jobName = t.jobName and p3.Priority = 3
   left join theTable p4 on p4.jobId = t.jobId and p4.jobName = t.jobName and p4.Priority = 4
   left join theTable p5 on p5.jobId = t.jobId and p5.jobName = t.jobName and p5.Priority = 5
group by
   t.jobId, t.jobName

Or you could use case inside a sum:

select
   jobId, jobName,
   sum(case Priority when 1 then 1 else 0 end) as Priority1,
   sum(case Priority when 2 then 1 else 0 end) as Priority2,
   sum(case Priority when 3 then 1 else 0 end) as Priority3,
   sum(case Priority when 4 then 1 else 0 end) as Priority4,
   sum(case Priority when 5 then 1 else 0 end) as Priority5
from
   theTable
group by
   jobId, jobName

There are padding built into various classes.

For example:

A asp.net web forms app:

<asp:CheckBox ID="chkShowDeletedServers" runat="server" AutoPostBack="True" Text="Show Deleted" />

this code above would place the Text of "Show Deleted" too close to the checkbox to what I see at nice to look at.

However with bootstrap

<div class="checkbox-inline">
    <asp:CheckBox ID="chkShowDeletedServers" runat="server" AutoPostBack="True" Text="Show Deleted" />
</div>

This created the space, if you don't want the text bold, that class=checkbox

Bootstrap is very flexible, so in this case I don't need a hack, but sometimes you need to.

Facebook Research group released a new solution called InferSent Results and code are published on Github, check their repo. It is pretty awesome. I am planning to use it. https://github.com/facebookresearch/InferSent

their paper https://arxiv.org/abs/1705.02364 Abstract: Many modern NLP systems rely on word embeddings, previously trained in an unsupervised manner on large corpora, as base features. Efforts to obtain embeddings for larger chunks of text, such as sentences, have however not been so successful. Several attempts at learning unsupervised representations of sentences have not reached satisfactory enough performance to be widely adopted. In this paper, we show how universal sentence representations trained using the supervised data of the Stanford Natural Language Inference datasets can consistently outperform unsupervised methods like SkipThought vectors on a wide range of transfer tasks. Much like how computer vision uses ImageNet to obtain features, which can then be transferred to other tasks, our work tends to indicate the suitability of natural language inference for transfer learning to other NLP tasks. Our encoder is publicly available.

Based on @lijat, here is a simplified implementation. In my spring-based application I simply load this as a bean.

public static void configureLog4jFromSystemProperties()
{
  final String LOGGER_PREFIX = "log4j.logger.";

  for(String propertyName : System.getProperties().stringPropertyNames())
  {
    if (propertyName.startsWith(LOGGER_PREFIX)) {
      String loggerName = propertyName.substring(LOGGER_PREFIX.length());
      String levelName = System.getProperty(propertyName, "");
      Level level = Level.toLevel(levelName); // defaults to DEBUG
      if (!"".equals(levelName) && !levelName.toUpperCase().equals(level.toString())) {
        logger.error("Skipping unrecognized log4j log level " + levelName + ": -D" + propertyName + "=" + levelName);
        continue;
      }
      logger.info("Setting " + loggerName + " => " + level.toString());
      Logger.getLogger(loggerName).setLevel(level);
    }
  }
}

You're obviously not closing your file descriptors before opening new ones. Are you on windows or linux?

In my case it was POST submission of a json to be processed and get a return value. I cross checked logs of my app server with and without nginx. What i got was my location was not getting appended to proxy_pass url and the version of HTTP protocol version is different.

• Without nginx: "POST /xxQuery HTTP/1.1" 200 -
• With nginx: "POST / HTTP/1.0" 405 -

My earlier location block was

location /xxQuery {
    proxy_method POST;
    proxy_pass http://127.0.0.1:xx00/;
    client_max_body_size 10M;
}

I changed it to

location /xxQuery {
    proxy_method POST;
    proxy_http_version 1.1;
    proxy_pass http://127.0.0.1:xx00/xxQuery;
    client_max_body_size 10M;
}

It worked.

I was looking for the same thing today and finally got a way to do it. I was hinted that it was possible due to the use of sconfig, which ask you if you want to change the computer name after joining it to a domain. Here is my raw code line. It might be enhanced but to tired to think about it for now.

$strCompName = Read-host 'Name '
$strAdmin = read-host "Authorized user for this operation "
$strDomain = read-host "Name of the domain to be joined "
add-computer -DomainName $strDomain -Credential $strAdmin
Rename-computer -newname $strCompName -DomainCredential $strAdmin

string yourWord = "Derp derp";

Console.WriteLine(new string(yourWord.Select(c => char.IsLetter(c) ? '_' : c).ToArray()));

Yields:

____ ____

Marked anwser is perfect but it misses character 127(DEL) which is also a non-printable character

my answer would be

$string = preg_replace('/[\x00-\x1F\x7f-\xFF]/', '', $string);

After reading the article from Marc Cliament's comment above, I've now changed my all-purpose cross-browser console.log function to look like this:

function log()
{
    "use strict";

    if (typeof(console) !== "undefined" && console.log !== undefined)
    {
        try
        {
            console.log.apply(console, arguments);
        }
        catch (e)
        {
            var log = Function.prototype.bind.call(console.log, console);
            log.apply(console, arguments);
        }
    }
}

This will work as long as your number is a whole number:

double dnexp = 12345678;
System.out.println("dexp: " + (long)dexp);

If the double variable has precision after the decimal point it will truncate it.

In eclipse->in server tap-> double click on Tomcat server at localhost-> Ports -> HTTP/1.1

Default port number will be 8080. Change this to 8081. Tomcat version7.0

I have configured tomcat server also in NetBeans IDE 7.4 for JSP. So am facing this issue.

DateFormat date =  new SimpleDateFormat("dd/MMM/yyyy");
Date date1 = new Date();
System.out.println(date.format(date1));

With .net 4 you could perhaps look at the ExpandoObject, however, don't use it for this simple case as what would have been compile-time errors become run-time errors.

class Program
{
    static void Main(string[] args)
    {
        dynamic employee, manager;

        employee = new ExpandoObject();
        employee.Name = "John Smith";
        employee.Age = 33;

        manager = new ExpandoObject();
        manager.Name = "Allison Brown";
        manager.Age = 42;
        manager.TeamSize = 10;

        WritePerson(manager);
        WritePerson(employee);
    }
    private static void WritePerson(dynamic person)
    {
        Console.WriteLine("{0} is {1} years old.",
                          person.Name, person.Age);
        // The following statement causes an exception
        // if you pass the employee object.
        // Console.WriteLine("Manages {0} people", person.TeamSize);
    }
}
// This code example produces the following output:
// John Smith is 33 years old.
// Allison Brown is 42 years old.

Something else worth mentioning is an anonymous type for within a method, but you need to create a class if you want to return it.

var MyStuff = new
    {
        PropertyName1 = 10,
        PropertyName2 = "string data",
        PropertyName3 = new ComplexType()
    };

 $A = array('a' => 1, 'b' => 2, 'c' => 3);
 $B = array('c' => 4, 'd'=> 5);
 $C = array_merge_recursive($A, $B);
 $aWhere = array();
 foreach ($C as $k=>$v) {

    if (is_array($v)) {
        $aWhere[] = $k . ' in ('.implode(', ',$v).')';
    }
    else {
        $aWhere[] = $k . ' = ' . $v;
    }
 }
 $where = implode(' AND ', $aWhere);
 echo $where;

Although you can't do this real-time, you can run map-reduce multiple times to merge data together by using the "reduce" out option in MongoDB 1.8+ map/reduce (see http://www.mongodb.org/display/DOCS/MapReduce#MapReduce-Outputoptions). You need to have some key in both collections that you can use as an _id.

For example, let's say you have a users collection and a comments collection and you want to have a new collection that has some user demographic info for each comment.

Let's say the users collection has the following fields:

• _id
• firstName
• lastName
• country
• gender
• age

And then the comments collection has the following fields:

• _id
• userId
• comment
• created

You would do this map/reduce:

var mapUsers, mapComments, reduce;
db.users_comments.remove();

// setup sample data - wouldn't actually use this in production
db.users.remove();
db.comments.remove();
db.users.save({firstName:"Rich",lastName:"S",gender:"M",country:"CA",age:"18"});
db.users.save({firstName:"Rob",lastName:"M",gender:"M",country:"US",age:"25"});
db.users.save({firstName:"Sarah",lastName:"T",gender:"F",country:"US",age:"13"});
var users = db.users.find();
db.comments.save({userId: users[0]._id, "comment": "Hey, what's up?", created: new ISODate()});
db.comments.save({userId: users[1]._id, "comment": "Not much", created: new ISODate()});
db.comments.save({userId: users[0]._id, "comment": "Cool", created: new ISODate()});
// end sample data setup

mapUsers = function() {
    var values = {
        country: this.country,
        gender: this.gender,
        age: this.age
    };
    emit(this._id, values);
};
mapComments = function() {
    var values = {
        commentId: this._id,
        comment: this.comment,
        created: this.created
    };
    emit(this.userId, values);
};
reduce = function(k, values) {
    var result = {}, commentFields = {
        "commentId": '', 
        "comment": '',
        "created": ''
    };
    values.forEach(function(value) {
        var field;
        if ("comment" in value) {
            if (!("comments" in result)) {
                result.comments = [];
            }
            result.comments.push(value);
        } else if ("comments" in value) {
            if (!("comments" in result)) {
                result.comments = [];
            }
            result.comments.push.apply(result.comments, value.comments);
        }
        for (field in value) {
            if (value.hasOwnProperty(field) && !(field in commentFields)) {
                result[field] = value[field];
            }
        }
    });
    return result;
};
db.users.mapReduce(mapUsers, reduce, {"out": {"reduce": "users_comments"}});
db.comments.mapReduce(mapComments, reduce, {"out": {"reduce": "users_comments"}});
db.users_comments.find().pretty(); // see the resulting collection

At this point, you will have a new collection called users_comments that contains the merged data and you can now use that. These reduced collections all have _id which is the key you were emitting in your map functions and then all of the values are a sub-object inside the value key - the values aren't at the top level of these reduced documents.

This is a somewhat simple example. You can repeat this with more collections as much as you want to keep building up the reduced collection. You could also do summaries and aggregations of data in the process. Likely you would define more than one reduce function as the logic for aggregating and preserving existing fields gets more complex.

You'll also note that there is now one document for each user with all of that user's comments in an array. If we were merging data that has a one-to-one relationship rather than one-to-many, it would be flat and you could simply use a reduce function like this:

reduce = function(k, values) {
    var result = {};
    values.forEach(function(value) {
        var field;
        for (field in value) {
            if (value.hasOwnProperty(field)) {
                result[field] = value[field];
            }
        }
    });
    return result;
};

If you want to flatten the users_comments collection so it's one document per comment, additionally run this:

var map, reduce;
map = function() {
    var debug = function(value) {
        var field;
        for (field in value) {
            print(field + ": " + value[field]);
        }
    };
    debug(this);
    var that = this;
    if ("comments" in this.value) {
        this.value.comments.forEach(function(value) {
            emit(value.commentId, {
                userId: that._id,
                country: that.value.country,
                age: that.value.age,
                comment: value.comment,
                created: value.created,
            });
        });
    }
};
reduce = function(k, values) {
    var result = {};
    values.forEach(function(value) {
        var field;
        for (field in value) {
            if (value.hasOwnProperty(field)) {
                result[field] = value[field];
            }
        }
    });
    return result;
};
db.users_comments.mapReduce(map, reduce, {"out": "comments_with_demographics"});

This technique should definitely not be performed on the fly. It's suited for a cron job or something like that which updates the merged data periodically. You'll probably want to run ensureIndex on the new collection to make sure queries you perform against it run quickly (keep in mind that your data is still inside a value key, so if you were to index comments_with_demographics on the comment created time, it would be db.comments_with_demographics.ensureIndex({"value.created": 1});

Thanks acdcjunior for your solution. Here's a little optimized version for formatting and parsing :

public static final SimpleDateFormat XML_SDF = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ", Locale.FRANCE)
{
    private static final long serialVersionUID = -8275126788734707527L;

    public StringBuffer format(Date date, StringBuffer toAppendTo, java.text.FieldPosition pos)
    {            
        final StringBuffer buf = super.format(date, toAppendTo, pos);
        buf.insert(buf.length() - 2, ':');
        return buf;
    };

    public Date parse(String source) throws java.text.ParseException {
        final int split = source.length() - 2;
        return super.parse(source.substring(0, split - 1) + source.substring(split)); // replace ":" du TimeZone
    };
};

I've found this question while I was trying to solve my issue with running sequelize seed:generate cli command:

node_modules/.bin/sequelize seed:generate --name=user

Let me get to the point. I wanted to have a short script command in my package.json file and to provide --name argument at the same time

The answer came after some experiments. Here is my command in package.json

"scripts: {
  "seed:generate":"NODE_ENV=development node_modules/.bin/sequelize seed:generate"
}

... and here is an example of running it in terminal to generate a seed file for a user

> yarn seed:generate --name=user

> npm run seed:generate -- --name=user

FYI

yarn -v
1.6.0

npm -v
5.6.0

Apply a css-reset to reset all the margins and paddings like this

/* http://meyerweb.com/eric/tools/css/reset/ 

v2.0 | 20110126 License: none (public domain) */

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
margin: 0;
padding: 0;
border: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
display: block;
}
body {
line-height: 1;
}
ol, ul {
list-style: none;
}
blockquote, q {
quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
content: '';
content: none;
}
table {
border-collapse: collapse;
border-spacing: 0;
}

You can use various css-resets as you need, normal and use in css

 html
 {
  margin: 0px;
 padding: 0px;
 }

body
{
margin: 0px;
padding: 0px;
}

Facebook no longer supports custom parameters in sharer.php

The sharer will no longer accept custom parameters and facebook will pull the information that is being displayed in the preview the same way that it would appear on facebook as a post from the url OG meta tags.

Use dialog/feeds instead of sharer.php

https://www.facebook.com/dialog/feed?
  app_id=145634995501895
  &display=popup&caption=An%20example%20caption 
  &link=https%3A%2F%2Fdevelopers.facebook.com%2Fdocs%2Fdialogs%2F
  &redirect_uri=https://developers.facebook.com/tools/explorer

Official answer from fb team

The average corporate programmer, e.g. most of the people I work with, will not understand it and most work environments will not let you program in it

That one is just a matter of time though. Your average corporate programmer learns whatever the current Big Thing is. 15 years ago, they didn't understand OOP. IF FP catches on, your "average corporate programmers" will follow.

It's not really taught at universities (or is it nowadays?)

Varies a lot. At my university, SML is the very first language students are introduced to. I believe MIT teaches LISP as a first-year course. These two examples may not be representative, of course, but I believe most universities at the very least offer some optional courses on FP, even if they don't make it a mandatory part of the curriculum.

Most applications are simple enough to be solved in normal OO ways

It's not really a matter of "simple enough" though. Would a solution be simpler (or more readable, robust, elegant, performant) in FP? Many things are "simple enough to be solved in Java", but it still requires a godawful amount of code.

In any case, keep in mind that FP proponents have claimed that it was the Next Big Thing for several decades now. Perhaps they're right, but keep in mind that they weren't when they made the same claim 5, 10 or 15 years ago.

One thing that definitely counts in their favor, though, is that recently, C# has taken a sharp turn towards FP, to the extent that it's practically turning a generation of programmers into FP programmers, without them even noticing. That might just pave the way for the FP "revolution". Maybe. ;)

In JavaScript, dates can be transformed to the number of milliseconds since the epoc by calling the getTime() method or just using the date in a numeric expression.

So to get the difference, just subtract the two dates.

To create a new date based on the difference, just pass the number of milliseconds in the constructor.

var oldBegin = ...
var oldEnd = ...
var newBegin = ...

var newEnd = new Date(newBegin + oldEnd - oldBegin);

This should just work

EDIT: Fixed bug pointed by @bdukes

EDIT:

For an explanation of the behavior, oldBegin, oldEnd, and newBegin are Date instances. Calling operators + and - will trigger Javascript auto casting and will automatically call the valueOf() prototype method of those objects. It happens that the valueOf() method is implemented in the Date object as a call to getTime().

So basically: date.getTime() === date.valueOf() === (0 + date) === (+date)

Google recommends the usage of Android Volley for HTTP/HTTPS connections, since that HttpClient is deprecated. So, you know the right choice :).

And also, NEVER NUKE SSL Certificates (NEVER!!!).

To nuke SSL Certificates, is totally against the purpose of SSL, which is promoting security. There's no sense of using SSL, if you're planning to bomb all SSL certificates that comes. A better solution would be creating a custom TrustManager on your App + using Android Volley for HTTP/HTTPS connections.

Here's a Gist which I created, with a basic LoginApp, performing HTTPS connections, using a Self-Signed Certificate on the server-side, accepted on the App.

Here's also another Gist that may help, for creating Self-Signed SSL Certificates for setting up on your Server and also using the certificate on your App. Very important: you must copy the .crt file which was generated by the script above, to the "raw" directory from your Android project.

another way to do this is by going through the intermediate table. I'd express this within the Django ORM like this:

UserZone = User.zones.through

# for a single zone
users_in_zone = User.objects.filter(
  id__in=UserZone.objects.filter(zone=zone1).values('user'))

# for multiple zones
users_in_zones = User.objects.filter(
  id__in=UserZone.objects.filter(zone__in=[zone1, zone2, zone3]).values('user'))

it would be nice if it didn't need the .values('user') specified, but Django (version 3.0.7) seems to need it.

the above code will end up generating SQL that looks something like:

SELECT * FROM users WHERE id IN (SELECT user_id FROM userzones WHERE zone_id IN (1,2,3))

which is nice because it doesn't have any intermediate joins that could cause duplicate users to be returned

One needs to understand what a JOIN or a series of JOINs does to a set of data. With strae's post, a pe_id of 1 joined with corresponding order and items on pe_id = 1 will give you the following data to "select" from:

[ table people portion ] [ table orders portion ] [ table items portion ]

| people.pe_id | people.pe_name | orders.ord_id | orders.pe_id | orders.ord_title | item.item_id | item.ord_id | item.pe_id | item.title |

| 1 | Foo | 1 | 1 | First order | 1 | 1 | 1 | Apple |
| 1 | Foo | 1 | 1 | First order | 2 | 1 | 1 | Pear |

The joins essentially come up with a cartesian product of all the tables. You basically have that data set to select from and that's why you need a distinct count on orders.ord_id and items.item_id. Otherwise both counts will result in 2 - because you effectively have 2 rows to select from.

1. To properly purge the queue of waiting tasks you have to stop all the workers (http://celery.readthedocs.io/en/latest/faq.html#i-ve-purged-messages-but-there-are-still-messages-left-in-the-queue):

$ sudo rabbitmqctl stop

or (in case RabbitMQ/message broker is managed by Supervisor):

$ sudo supervisorctl stop all

2. ...and then purge the tasks from a specific queue:

$ cd <source_dir>
$ celery amqp queue.purge <queue name>

3. Start RabbitMQ:

$ sudo rabbitmqctl start

or (in case RabbitMQ is managed by Supervisor):

$ sudo supervisorctl start all

This is probably the only generic and type-safe way:

public class ArrayConcatenator<T> {
    private final IntFunction<T[]> generator;

    private ArrayConcatenator(IntFunction<T[]> generator) {
        this.generator = generator;
    }

    public static <T> ArrayConcatenator<T> concat(IntFunction<T[]> generator) {
        return new ArrayConcatenator<>(generator);
    }

    public T[] apply(T[] array1, T[] array2) {
        T[] array = generator.apply(array1.length + array2.length);
        System.arraycopy(array1, 0, array, 0, array1.length);
        System.arraycopy(array2, 0, array, array1.length, array2.length);
        return array;
    }
}

And the usage is quite concise:

Integer[] array1 = { 1, 2, 3 };
Double[] array2 = { 4.0, 5.0, 6.0 };
Number[] array = concat(Number[]::new).apply(array1, array2);

(requires static import)

Invalid array types are rejected:

concat(String[]::new).apply(array1, array2); // error
concat(Integer[]::new).apply(array1, array2); // error

You could define a clone function.

I use this one :

function goclone(source) {
    if (Object.prototype.toString.call(source) === '[object Array]') {
        var clone = [];
        for (var i=0; i<source.length; i++) {
            clone[i] = goclone(source[i]);
        }
        return clone;
    } else if (typeof(source)=="object") {
        var clone = {};
        for (var prop in source) {
            if (source.hasOwnProperty(prop)) {
                clone[prop] = goclone(source[prop]);
            }
        }
        return clone;
    } else {
        return source;
    }
}

var B = goclone(A);

It doesn't copy the prototype, functions, and so on. But you should adapt it (and maybe simplify it) for you own need.

you can add the 1px border to just the sides and bottom of each row. the first value is the top border, the second is the right border, the third is the bottom border, and the fourth is the left border.

div.row {
  border: 0px 1px 1px 1px solid;
}

<! DOCTYPE html>
<html>
<head></head>
<body>

    <input type="text" id="subEmail">


    <script type="text/javascript">

        window.onload = function(){

        var subEmail = document.getElementById("subEmail");

        subEmail.onchange = function(){

            if(subEmail.value == "")
            {
                subEmail.style.backgroundColor = "red";
            }
            else
            {
               subEmail.style.backgroundColor = "yellow"; 
            }
        };

    };



    </script>

</body>

Using Set and converting it to an array is very similar to copying an Array...

So you can use the same methods for copying an array which is very easy in ES6

For example, you can use ...

Imagine you have this Set below:

const a = new Set(["Alireza", "Dezfoolian", "is", "a", "developer"]);

You can simply convert it using:

const b = [...a];

and the result is:

["Alireza", "Dezfoolian", "is", "a", "developer"]

An array and now you can use all methods that you can use for an array...

Other common ways of doing it:

const b = Array.from(a);

or using loops like:

const b = [];
a.forEach(v => b.push(v));

Sometimes, you need to list the variables of an object and not for debugging purposes. The right way to do it is using get_object_vars($object). It returns an array that has all the class variables and their value. You can then loop through them in a foreach loop. If used within the object itself, simply do get_object_vars($this)

Docker Compose does not support the deploy key. It's only respected when you use your version 3 YAML file in a Docker Stack.

This message is printed when you add the deploy key to you docker-compose.yml file and then run docker-compose up -d

WARNING: Some services (database) use the 'deploy' key, which will be ignored. Compose does not support 'deploy' configuration - use docker stack deploy to deploy to a swarm.

The documentation (https://docs.docker.com/compose/compose-file/#deploy) says:

Specify configuration related to the deployment and running of services. This only takes effect when deploying to a swarm with docker stack deploy, and is ignored by docker-compose up and docker-compose run.

In a comment you wrote

i want to show that there is a difference in local and github repo

As already mentioned in another answer, you should do a git fetch origin first. Then, if the remote is ahead of your current branch, you can list all commits between your local branch and the remote with

git log master..origin/master --stat

If your local branch is ahead:

git log origin/master..master --stat

--stat shows a list of changed files as well.

If you want to explicitly list the additions and deletions, use git diff:

git diff master origin/master

If you're using setup.cfg files, add this before the install_require part:

setup_requires =
    wheel

Example of setup.cfg project :

# setup.py
from setuptools import setup

setup()

# setup.cfg
[metadata]
name = name
version = 0.0.1
description = desc
long_description = file: README.md
long_description_content_type = text/markdown
url = url
author = author
classifiers =
    Programming Language :: Python
    Programming Language :: Python :: 3

[options]
include_package_data = true
packages = find:
setup_requires =
    wheel
install_requires =
    packages
    packages
    packages

tl;dr

LocalDate.parse( 
    "01-23-2017" , 
    DateTimeFormatter.ofPattern( "MM-dd-uuuu" )
)

Details

I have a java.util.Date in the format yyyy-mm-dd

As other mentioned, the Date class has no format. It has a count of milliseconds since the start of 1970 in UTC. No strings attached.

java.time

The other Answers use troublesome old legacy date-time classes, now supplanted by the java.time classes.

If you have a java.util.Date, convert to a Instant object. The Instant class represents a moment on the timeline in UTC with a resolution of nanoseconds (up to nine (9) digits of a decimal fraction).

Instant instant = myUtilDate.toInstant();

Time zone

The other Answers ignore the crucial issue of time zone. Determining a date requires a time zone. For any given moment, the date varies around the globe by zone. A few minutes after midnight in Paris France is a new day, while still “yesterday” in Montréal Québec.

Define the time zone by which you want context for your Instant.

ZoneId z = ZoneId.of( "America/Montreal" );

Apply the ZoneId to get a ZonedDateTime.

ZonedDateTime zdt = instant.atZone( z );

LocalDate

If you only care about the date without a time-of-day, extract a LocalDate.

LocalDate localDate = zdt.toLocalDate();

To generate a string in standard ISO 8601 format, YYYY-MM-DD, simply call toString. The java.time classes use the standard formats by default when generating/parsing strings.

String output = localDate.toString();

2017-01-23

If you want a MM-DD-YYYY format, define a formatting pattern.

DateTimeFormatter f = DateTimeFormatter.ofPattern( "MM-dd-uuuu" );
String output = localDate.format( f );

Note that the formatting pattern codes are case-sensitive. The code in the Question incorrectly used mm (minute of hour) rather than MM (month of year).

Use the same DateTimeFormatter object for parsing. The java.time classes are thread-safe, so you can keep this object around and reuse it repeatedly even across threads.

LocalDate localDate = LocalDate.parse( "01-23-2017" , f );

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

Where to obtain the java.time classes?

• Java SE 8 and SE 9 and later
  • Built-in.
  • Part of the standard Java API with a bundled implementation.
  • Java 9 adds some minor features and fixes.
• Java SE 6 and SE 7
  • Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
• Android
  • The ThreeTenABP project adapts ThreeTen-Backport (mentioned above) for Android specifically.
  • See How to use ThreeTenABP….

The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more.

Printing stack trace to string

import java.io.PrintWriter;
import java.io.StringWriter;

public class StackTraceUtils {
    public static String stackTraceToString(StackTraceElement[] stackTrace) {
        StringWriter sw = new StringWriter();
        printStackTrace(stackTrace, new PrintWriter(sw));
        return sw.toString();
    }
    public static void printStackTrace(StackTraceElement[] stackTrace, PrintWriter pw) {
        for(StackTraceElement stackTraceEl : stackTrace) {
            pw.println(stackTraceEl);
        }
    }
}

It's useful when you want to print the current thread stack trace without creating instance of Throwable - but note that creating new Throwable and getting stack trace from there is actually faster and cheaper than calling Thread.getStackTrace.

With rlang 0.4.0 we have curly-curly operators ({{}}) which makes this very easy.

library(dplyr)
library(rlang)

iris1 <- tbl_df(iris)

multipetal <- function(df, n) {
   varname <- paste("petal", n , sep=".")
   mutate(df, {{varname}} := Petal.Width * n)
}

multipetal(iris1, 4)

# A tibble: 150 x 6
#   Sepal.Length Sepal.Width Petal.Length Petal.Width Species petal.4
#          <dbl>       <dbl>        <dbl>       <dbl> <fct>     <dbl>
# 1          5.1         3.5          1.4         0.2 setosa      0.8
# 2          4.9         3            1.4         0.2 setosa      0.8
# 3          4.7         3.2          1.3         0.2 setosa      0.8
# 4          4.6         3.1          1.5         0.2 setosa      0.8
# 5          5           3.6          1.4         0.2 setosa      0.8
# 6          5.4         3.9          1.7         0.4 setosa      1.6
# 7          4.6         3.4          1.4         0.3 setosa      1.2
# 8          5           3.4          1.5         0.2 setosa      0.8
# 9          4.4         2.9          1.4         0.2 setosa      0.8
#10          4.9         3.1          1.5         0.1 setosa      0.4
# … with 140 more rows

We can also pass quoted/unquoted variable names to be assigned as column names.

multipetal <- function(df, name, n) {
   mutate(df, {{name}} := Petal.Width * n)
}

multipetal(iris1, temp, 3)

# A tibble: 150 x 6
#   Sepal.Length Sepal.Width Petal.Length Petal.Width Species  temp
#          <dbl>       <dbl>        <dbl>       <dbl> <fct>   <dbl>
# 1          5.1         3.5          1.4         0.2 setosa  0.6  
# 2          4.9         3            1.4         0.2 setosa  0.6  
# 3          4.7         3.2          1.3         0.2 setosa  0.6  
# 4          4.6         3.1          1.5         0.2 setosa  0.6  
# 5          5           3.6          1.4         0.2 setosa  0.6  
# 6          5.4         3.9          1.7         0.4 setosa  1.2  
# 7          4.6         3.4          1.4         0.3 setosa  0.900
# 8          5           3.4          1.5         0.2 setosa  0.6  
# 9          4.4         2.9          1.4         0.2 setosa  0.6  
#10          4.9         3.1          1.5         0.1 setosa  0.3  
# … with 140 more rows

It works the same with

multipetal(iris1, "temp", 3)

Use intptr_t and uintptr_t.

To ensure it is defined in a portable way, you can use code like this:

#if defined(__BORLANDC__)
    typedef unsigned char uint8_t;
    typedef __int64 int64_t;
    typedef unsigned long uintptr_t;
#elif defined(_MSC_VER)
    typedef unsigned char uint8_t;
    typedef __int64 int64_t;
#else
    #include <stdint.h>
#endif

Just place that in some .h file and include wherever you need it.

Alternatively, you can download Microsoft’s version of the stdint.h file from here or use a portable one from here.

You can set it to NULL.

> Data$genome <- NULL
> head(Data)
   chr region
1 chr1    CDS
2 chr1   exon
3 chr1    CDS
4 chr1   exon
5 chr1    CDS
6 chr1   exon

As pointed out in the comments, here are some other possibilities:

Data[2] <- NULL    # Wojciech Sobala
Data[[2]] <- NULL  # same as above
Data <- Data[,-2]  # Ian Fellows
Data <- Data[-2]   # same as above

You can remove multiple columns via:

Data[1:2] <- list(NULL)  # Marek
Data[1:2] <- NULL        # does not work!

Be careful with matrix-subsetting though, as you can end up with a vector:

Data <- Data[,-(2:3)]             # vector
Data <- Data[,-(2:3),drop=FALSE]  # still a data.frame

As Zach explained, you can use:

xor = bool(a) ^ bool(b)

Personally, I favor a slightly different dialect:

xor = bool(a) + bool(b) == 1

This dialect is inspired from a logical diagramming language I learned in school where "OR" was denoted by a box containing =1 (greater than or equal to 1) and "XOR" was denoted by a box containing =1.

This has the advantage of correctly implementing exclusive or on multiple operands.

• "1 = a ^ b ^ c..." means the number of true operands is odd. This operator is "parity".
• "1 = a + b + c..." means exactly one operand is true. This is "exclusive or", meaning "one to the exclusion of the others".

The best way is to use layers insted of views:

AVPlayer *player = [AVPlayer playerWithURL:[NSURL url...]]; // 

AVPlayerLayer *layer = [AVPlayerLayer layer];

[layer setPlayer:player];
[layer setFrame:CGRectMake(10, 10, 300, 200)];
[layer setBackgroundColor:[UIColor redColor].CGColor];
[layer setVideoGravity:AVLayerVideoGravityResizeAspectFill];

[self.view.layer addSublayer:layer];

[player play];

Don't forget to add frameworks:

#import <QuartzCore/QuartzCore.h>
#import "AVFoundation/AVFoundation.h"

Try this query

DECLARE @PrintVarchar nvarchar(max) = (Select Sum(Amount) From Expense)
PRINT 'Varchar format =' + @PrintVarchar

DECLARE @PrintInt int = (Select Sum(Amount) From Expense)
PRINT @PrintInt

In order to find chart data using the financial data API of Google, one must simply go to Google as if looking for a search term, type finance into the search engine, and a link to Google finance will appear. Once at the Google finance search engine, type the ticker name into the financial data API engine and the result will be displayed. However, it should be noted that all Google finance charts are delayed by 15 minutes, and at most can be used for a better understanding of the ticker's past history, rather than current price.

A solution to the delayed chart information is to obtain a real-time financial data API. An example of one would be the barchartondemand interface that has real-time quote information, along with other detailed features that make it simpler to find the exact chart you're looking for. With fully customizable features, and specific programming tools for the precise trading information you need, barchartondemand's tools outdo Google finance by a wide margin.

This should work.

<div my-method='theMethodToBeCalled'></div>

app.directive("myMethod",function($parse) {
  restrict:'A',
  scope: {theMethodToBeCalled: "="}
  link:function(scope,element,attrs) {
     $(element).on('theEvent',function( e, rowid ) {
        id = // some function called to determine id based on rowid
        scope.theMethodToBeCalled(id);
     }
  }
}

app.controller("myController",function($scope) {
   $scope.theMethodToBeCalled = function(id) { alert(id); };
}

Another option is, instead of floating, to set the white-space property nowrap to a parent div:

.parent {
     white-space: nowrap;
}

and reset the white-space and use an inline-block display so the divs stay on the same line but you can still give it a width.

.child {
    display:inline-block;
    width:300px;
    white-space: normal;
}

Here is a JSFiddle: https://jsfiddle.net/9g8ud31o/

Just @OneToMany(cascade = CascadeType.ALL, mappedBy = "xxx", fetch = FetchType.LAZY, orphanRemoval = true).

Remove targetEntity = MyClass.class, it works great.

When you create a database in Microsoft SQL Server you can have multiple file groups, where storage is created in multiple places, directories or disks. Each file group can be named. The PRIMARY file group is the default one, which is always created, and so the SQL you've given creates your table ON the PRIMARY file group.

See MSDN for the full syntax.

You can use the str.split method: string.split('__')

>>> "MATCHES__STRING".split("__")
['MATCHES', 'STRING']

Thanks @Mladen Janjetovic,

Your suggestion worked for me in mac with ampps installed.

Copied: http://curl.haxx.se/ca/cacert.pem

To: /Applications/AMPPS/extra/etc/openssl/certs/cacert.pem

And updated php.ini with that path and restarted Apache:

[curl]
; A default value for the CURLOPT_CAINFO option. This is required to be an
; absolute path.
curl.cainfo="/Applications/AMPPS/extra/etc/openssl/certs/cacert.pem"
openssl.cafile="/Applications/AMPPS/extra/etc/openssl/certs/cacert.pem"

And applied same setting in windows AMPPS installation and it worked perfectly in it too.

[curl]
; A default value for the CURLOPT_CAINFO option. This is required to be an
; absolute path.
curl.cainfo="C:/Ampps/php/extras/ssl/cacert.pem"
openssl.cafile="C:/Ampps/php/extras/ssl/cacert.pem"

: Same for wamp.

[curl]
; A default value for the CURLOPT_CAINFO option. This is required to be an
; absolute path.
curl.cainfo="C:/wamp/bin/php/php5.6.16/extras/ssl/cacert.pem"
openssl.cafile="C:/wamp/bin/php/php5.6.16/extras/ssl/cacert.pem"

If you are looking for generating new SSL certificate using SAN for localhost, steps on this post worked for me on Centos 7 / Vagrant / Chrome Browser.

It will take more than an year (or two) for the universal acceptance.

1. Unicode consortium approves the char-code.
2. Fonts are updated to include this symbol
3. Browsers/OS are updated to include new fonts and then only it is visible on every browser on earth.

Creating custom fonts by using arbitrary code-base and (forcefully) embedding them in every web-pages is discouraged for Website. (for desktop applications it may be acceptable). Although your solution may be acceptable; I would not advice just for the sake of one symbol! Loading a font file makes web-pages slower.

By the time it is advised to use icon-sets for rupee symbol. Prepare a set of icons with sizes 12x8, 16x12, 32x32 that you can incorporate in-line using <img> tag.

E.g 5000/- (i just resized the image; it should have been re-sampled for given size for better results)

<img src="http://i.stack.imgur.com/nGbfO.png" width="8" height="10">

Note: This is what Wikipedia does. it uses png/svg file. Check the infobox here.

Todo this in a single system call you can use the fs-extra npm module. After this the file will have been created as well as the directory it is to be placed in.

const fs = require('fs-extra');
const file = '/tmp/this/path/does/not/exist/file.txt'
fs.ensureFile(file, err => {
    console.log(err) // => null
});

Another way is to use ensureFileSync which will do the same thing but synchronous.

const fs = require('fs-extra');
const file = '/tmp/this/path/does/not/exist/file.txt'
fs.ensureFileSync(file)

Based on the explanation here and following up on Tristan's answer, I usually use these quick functions for sanity checks.

# a function to help us stay clean
def getPaddings(pad_along_height,pad_along_width):
    # if even.. easy..
    if pad_along_height%2 == 0:
        pad_top = pad_along_height / 2
        pad_bottom = pad_top
    # if odd
    else:
        pad_top = np.floor( pad_along_height / 2 )
        pad_bottom = np.floor( pad_along_height / 2 ) +1
    # check if width padding is odd or even
    # if even.. easy..
    if pad_along_width%2 == 0:
        pad_left = pad_along_width / 2
        pad_right= pad_left
    # if odd
    else:
        pad_left = np.floor( pad_along_width / 2 )
        pad_right = np.floor( pad_along_width / 2 ) +1
        #
    return pad_top,pad_bottom,pad_left,pad_right

# strides [image index, y, x, depth]
# padding 'SAME' or 'VALID'
# bottom and right sides always get the one additional padded pixel (if padding is odd)
def getOutputDim (inputWidth,inputHeight,filterWidth,filterHeight,strides,padding):
    if padding == 'SAME':
        out_height = np.ceil(float(inputHeight) / float(strides[1]))
        out_width  = np.ceil(float(inputWidth) / float(strides[2]))
        #
        pad_along_height = ((out_height - 1) * strides[1] + filterHeight - inputHeight)
        pad_along_width = ((out_width - 1) * strides[2] + filterWidth - inputWidth)
        #
        # now get padding
        pad_top,pad_bottom,pad_left,pad_right = getPaddings(pad_along_height,pad_along_width)
        #
        print 'output height', out_height
        print 'output width' , out_width
        print 'total pad along height' , pad_along_height
        print 'total pad along width' , pad_along_width
        print 'pad at top' , pad_top
        print 'pad at bottom' ,pad_bottom
        print 'pad at left' , pad_left
        print 'pad at right' ,pad_right

    elif padding == 'VALID':
        out_height = np.ceil(float(inputHeight - filterHeight + 1) / float(strides[1]))
        out_width  = np.ceil(float(inputWidth - filterWidth + 1) / float(strides[2]))
        #
        print 'output height', out_height
        print 'output width' , out_width
        print 'no padding'


# use like so
getOutputDim (80,80,4,4,[1,1,1,1],'SAME')

$limit=5; // for exemple

$query = $this->getDoctrine()->getEntityManager()->createQuery(
           '// your request')

->setMaxResults($limit);

 $results = $query->getResult();

// Done

Check JavaScript Cookies on W3Schools.com for setting and getting cookie values via JS.

Just use the setCookie and getCookie methods mentioned there.

So, the code will look something like:

<script>
function setCookie(c_name, value, exdays) {
    var exdate = new Date();
    exdate.setDate(exdate.getDate() + exdays);
    var c_value = escape(value) + ((exdays == null) ? "" : "; expires=" + exdate.toUTCString());
    document.cookie = c_name + "=" + c_value;
}

function getCookie(c_name) {
    var i, x, y, ARRcookies = document.cookie.split(";");
    for (i = 0; i < ARRcookies.length; i++) {
        x = ARRcookies[i].substr(0, ARRcookies[i].indexOf("="));
        y = ARRcookies[i].substr(ARRcookies[i].indexOf("=") + 1);
        x = x.replace(/^\s+|\s+$/g, "");
        if (x == c_name) {
            return unescape(y);
        }
    }
}

function cssSelected() {
    var cssSelected = $('#myList')[0].value;
    if (cssSelected !== "select") {
        setCookie("selectedCSS", cssSelected, 3);
    }
}

$(document).ready(function() {
    $('#myList')[0].value = getCookie("selectedCSS");
})
</script>
<select id="myList" onchange="cssSelected();">
    <option value="select">--Select--</option>
    <option value="style-1.css">CSS1</option>
    <option value="style-2.css">CSS2</option>
    <option value="style-3.css">CSS3</option>
    <option value="style-4.css">CSS4</option>
</select>

These questions may be relevant to what you're asking for:

• How can I trigger an onchange event manually?

• How to trigger an event in an input field changed with javascript

Here are my thoughts: You can stack up more than one call in your onclick event like this:

<select id="sel" onchange='alert("changed")'>
  <option value='1'>One</option>
  <option value='2'>Two</option>
  <option value='3'>Three</option>
</select>
<input type="button" onclick='document.getElementById("sel").options[1].selected = true; alert("changed");' value="Change option to 2" />

You could also call a function to do this.

If you really want to call one function and have both behave the same way, I think something like this should work. It doesn't really follow the best practice of "Functions should do one thing and do it well", but it does allow you to call one function to handle both ways of changing the dropdown. Basically I pass (value) on the onchange event and (null, index of option) on the onclick event.

Here is the codepen: http://codepen.io/mmaynar1/pen/ZYJaaj

<select id="sel" onchange='doThisOnChange(this.value)'>
<option value='1'>One</option>
<option value='2'>Two</option>
<option value='3'>Three</option>
</select>
<input type="button" onclick='doThisOnChange(null,1);' value="Change option to 2"/>

<script>
doThisOnChange = function( value, optionIndex)
{
    if ( optionIndex != null )
    {
       var option = document.getElementById( "sel" ).options[optionIndex];
       option.selected = true;
       value = option.value;
    }
    alert( "Do something with the value: " + value );
}
</script>

Use this:

document.getElementById(target).value = newVal.replace(/[^0-9.]/g, '');

Using python-docx, as @Chinmoy Panda 's answer shows:

for para in doc.paragraphs:
    fullText.append(para.text)

However, para.text will lost the text in w:smarttag (Corresponding github issue is here: https://github.com/python-openxml/python-docx/issues/328), you should use the following function instead:

def para2text(p):
    rs = p._element.xpath('.//w:t')
    return u" ".join([r.text for r in rs])

There are multiple ways to check if a value exists in the database. Let me demonstrate how this can be done properly with PDO and mysqli.

PDO

PDO is the simpler option. To find out whether a value exists in the database you can use prepared statement and fetchColumn(). There is no need to fetch any data so we will only fetch 1 if the value exists.

<?php

// Connection code. 
$options = [
    \PDO::ATTR_ERRMODE            => \PDO::ERRMODE_EXCEPTION,
    \PDO::ATTR_EMULATE_PREPARES   => false,
];
$pdo = new \PDO('mysql:host=localhost;port=3306;dbname=test;charset=utf8mb4', 'testuser', 'password', $options);

// Prepared statement
$stmt = $pdo->prepare('SELECT 1 FROM tblUser WHERE email=?');
$stmt->execute([$_POST['email']]);
$exists = $stmt->fetchColumn(); // either 1 or null

if ($exists) {
    echo 'Email exists in the database.';
} else {
    // email doesn't exist yet
}

For more examples see: How to check if email exists in the database?

MySQLi

As always mysqli is a little more cumbersome and more restricted, but we can follow a similar approach with prepared statement.

<?php

// Connection code
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new \mysqli('localhost', 'testuser', 'password', 'test');
$mysqli->set_charset('utf8mb4');

// Prepared statement
$stmt = $mysqli->prepare('SELECT 1 FROM tblUser WHERE email=?');
$stmt->bind_param('s', $_POST['email']);
$stmt->execute();
$exists = (bool) $stmt->get_result()->fetch_row(); // Get the first row from result and cast to boolean

if ($exists) {
    echo 'Email exists in the database.';
} else {
    // email doesn't exist yet
}

Instead of casting the result row(which might not even exist) to boolean, you can also fetch COUNT(1) and read the first item from the first row using fetch_row()[0]

For more examples see: How to check whether a value exists in a database using mysqli prepared statements

Minor remarks

• If someone suggests you to use mysqli_num_rows(), don't listen to them. This is a very bad approach and could lead to performance issues if misused.
• Don't use real_escape_string(). This is not meant to be used as a protection against SQL injection. If you use prepared statements correctly you don't need to worry about any escaping.
• If you want to check if a row exists in the database before you try to insert a new one, then it is better not to use this approach. It is better to create a unique key in the database and let it throw an exception if a duplicate value exists.

You could do it this way:

-- Notice how STATE got moved inside the condition:
CASE WHEN STATE = 2 AND RetailerProcessType IN (1, 2) THEN '"AUTHORISED"'
     WHEN STATE = 1 AND RetailerProcessType = 2 THEN '"PENDING"'
     ELSE '"DECLINED"'
END

The reason you can do an AND here is that you are not checking the CASE of STATE, but instead you are CASING Conditions.

The key part here is that the STATE condition is a part of the WHEN.

var myArr1 = [AnyObject]()

can store any object

var myArr2 = [String]()

can store only string

Here's my workaround:

I created a library with Angular 6. I added a common component commonlib-header which is used like this in an external application.

Note the serviceReference which is the class (injected in the component constructor(public serviceReference: MyService) that uses the commonlib-header) that holds the stringFunctionName method:

<commonlib-header
    [logo]="{ src: 'assets/img/logo.svg', alt: 'Logo', href: '#' }"
    [buttons]="[{ index: 0, innerHtml: 'Button', class: 'btn btn-primary', onClick: [serviceReference, 'stringFunctionName', ['arg1','arg2','arg3']] }]">
    </common-header>

The library component is programmed like this. The dynamic event is added in the onClick(fn: any) method:

export class HeaderComponent implements OnInit {

 _buttons: Array<NavItem> = []

 @Input()
  set buttons(buttons: Array<any>) {
    buttons.forEach(navItem => {
      let _navItem = new NavItem(navItem.href, navItem.innerHtml)

      _navItem.class = navItem.class

      _navItem.onClick = navItem.onClick // this is the array from the component @Input properties above

      this._buttons[navItem.index] = _navItem
    })
  }

  constructor() {}

  ngOnInit() {}

  onClick(fn: any){
    let ref = fn[0]
    let fnName = fn[1]
    let args = fn[2]

    ref[fnName].apply(ref, args)
  }

The reusable header.component.html:

<div class="topbar-right">
  <button *ngFor="let btn of _buttons"
    class="{{ btn.class }}"
    (click)="onClick(btn.onClick)"
    [innerHTML]="btn.innerHtml | keepHtml"></button>
</div>

DBContext.TestAddresses.Select(m => m.NAME).Distinct();

if you have multiple column do like this:

DBContext.TestAddresses.Select(m => new {m.NAME, m.ID}).Distinct();

In this example no duplicate CategoryId and no CategoryName i hope this will help you

This works best for me on OS X:

grep -r -l 'searchtext' . | sort | uniq | xargs perl -e "s/matchtext/replacetext/" -pi

Source: http://www.praj.com.au/post/23691181208/grep-replace-text-string-in-files

Run sudo git --version from command line and agree to the license and this should fix the issue.

The best solution to centralize your modal with width and height is, in css add and in modal add this 'centralize' as a class..

.centralize{
   position:absolute;
   left:50%;
   top:50%;

   background-color:#fff;
   transform: translate(-50%, -50%);
   width: 40%; //specify watever u want
   height: 50%;
   }

The short answer:

Use the click event, which won't fire until after the value has been updated, and fires when you want it to:

<label><input type='checkbox' onclick='handleClick(this);'>Checkbox</label>

function handleClick(cb) {
  display("Clicked, new value = " + cb.checked);
}

Live example | Source

The longer answer:

The change event handler isn't called until the checked state has been updated (live example | source), but because (as Tim Büthe points out in the comments) IE doesn't fire the change event until the checkbox loses focus, you don't get the notification proactively. Worse, with IE if you click a label for the checkbox (rather than the checkbox itself) to update it, you can get the impression that you're getting the old value (try it with IE here by clicking the label: live example | source). This is because if the checkbox has focus, clicking the label takes the focus away from it, firing the change event with the old value, and then the click happens setting the new value and setting focus back on the checkbox. Very confusing.

But you can avoid all of that unpleasantness if you use click instead.

I've used DOM0 handlers (onxyz attributes) because that's what you asked about, but for the record, I would generally recommend hooking up handlers in code (DOM2's addEventListener, or attachEvent in older versions of IE) rather than using onxyz attributes. That lets you attach multiple handlers to the same element and lets you avoid making all of your handlers global functions.

An earlier version of this answer used this code for handleClick:

function handleClick(cb) {
  setTimeout(function() {
    display("Clicked, new value = " + cb.checked);
  }, 0);
}

The goal seemed to be to allow the click to complete before looking at the value. As far as I'm aware, there's no reason to do that, and I have no idea why I did. The value is changed before the click handler is called. In fact, the spec is quite clear about that. The version without setTimeout works perfectly well in every browser I've tried (even IE6). I can only assume I was thinking about some other platform where the change isn't done until after the event. In any case, no reason to do that with HTML checkboxes.

The following answer could be helpful for the first part of your question:

Django: How can I call a view function from template?

I always prefer to use extension instead of free functions.

Swift 4

public extension DispatchQueue {

  private class func delay(delay: TimeInterval, closure: @escaping () -> Void) {
    let when = DispatchTime.now() + delay
    DispatchQueue.main.asyncAfter(deadline: when, execute: closure)
  }

  class func performAction(after seconds: TimeInterval, callBack: @escaping (() -> Void) ) {
    DispatchQueue.delay(delay: seconds) {
      callBack()
    }
  }

}

Use as follow.

DispatchQueue.performAction(after: 0.3) {
  // Code Here
}

'use strict'; angular.module('app') .run( [ '$rootScope', '$state', '$stateParams', function($rootScope, $state, $stateParams) { $rootScope.$state = $state; $rootScope.$stateParams = $stateParams; } ] ) .config( [ '$stateProvider', '$urlRouterProvider', function($stateProvider, $urlRouterProvider) {

            $urlRouterProvider
                .otherwise('/app/dashboard');
            $stateProvider
                .state('app', {
                    abstract: true,
                    url: '/app',
                    templateUrl: 'views/layout.html'
                })
                .state('app.dashboard', {
                    url: '/dashboard',
                    templateUrl: 'views/dashboard.html',
                    ncyBreadcrumb: {
                        label: 'Dashboard',
                        description: ''
                    },
                    resolve: {
                        deps: [
                            '$ocLazyLoad',
                            function($ocLazyLoad) {
                                return $ocLazyLoad.load({
                                    serie: true,
                                    files: [
                                        'lib/jquery/charts/sparkline/jquery.sparkline.js',
                                        'lib/jquery/charts/easypiechart/jquery.easypiechart.js',
                                        'lib/jquery/charts/flot/jquery.flot.js',
                                        'lib/jquery/charts/flot/jquery.flot.resize.js',
                                        'lib/jquery/charts/flot/jquery.flot.pie.js',
                                        'lib/jquery/charts/flot/jquery.flot.tooltip.js',
                                        'lib/jquery/charts/flot/jquery.flot.orderBars.js',
                                        'app/controllers/dashboard.js',
                                        'app/directives/realtimechart.js'
                                    ]
                                });
                            }
                        ]
                    }
                })
                .state('ram', {
                    abstract: true,
                    url: '/ram',
                    templateUrl: 'views/layout-ram.html'
                })
                .state('ram.dashboard', {
                    url: '/dashboard',
                    templateUrl: 'views/dashboard-ram.html',
                    ncyBreadcrumb: {
                        label: 'test'
                    },
                    resolve: {
                        deps: [
                            '$ocLazyLoad',
                            function($ocLazyLoad) {
                                return $ocLazyLoad.load({
                                    serie: true,
                                    files: [
                                        'lib/jquery/charts/sparkline/jquery.sparkline.js',
                                        'lib/jquery/charts/easypiechart/jquery.easypiechart.js',
                                        'lib/jquery/charts/flot/jquery.flot.js',
                                        'lib/jquery/charts/flot/jquery.flot.resize.js',
                                        'lib/jquery/charts/flot/jquery.flot.pie.js',
                                        'lib/jquery/charts/flot/jquery.flot.tooltip.js',
                                        'lib/jquery/charts/flot/jquery.flot.orderBars.js',
                                        'app/controllers/dashboard.js',
                                        'app/directives/realtimechart.js'
                                    ]
                                });
                            }
                        ]
                    }
                })
                 );

Try to use:

mvn jacoco:report -debug

to see the details about your reporting process.

I configured my jacoco like this:

<configuration>
    <dataFile>~/jacoco.exec</dataFile>
    <outputDirectory>~/jacoco</outputDirectory>
</configuration>

Then mvn jacoco:report -debug shows it using the default configuration, which means jacoco.exec is not in ~/jacoco.exec. The error says missing execution data file.

So just use the default configuration:

<execution>
    <id>default-report</id>
    <goals>
    </goals>
    <configuration>
        <dataFile>${project.build.directory}/jacoco.exec</dataFile>
        <outputDirectory>${project.reporting.outputDirectory}/jacoco</outputDirectory>
    </configuration>
</execution>

And everything works fine.

This is how to calculate the age in MySQL:

select
  date_format(now(), '%Y') - date_format(date_of_birth, '%Y') - 
  (date_format(now(), '00-%m-%d') < date_format(date_of_birth, '00-%m-%d'))
as age from table

Using appendEncodePath() could save you multiple lines than appendPath(), the following code snippet builds up this url: http://api.openweathermap.org/data/2.5/forecast/daily?zip=94043

Uri.Builder urlBuilder = new Uri.Builder();
urlBuilder.scheme("http");
urlBuilder.authority("api.openweathermap.org");
urlBuilder.appendEncodedPath("data/2.5/forecast/daily");
urlBuilder.appendQueryParameter("zip", "94043,us");
URL url = new URL(urlBuilder.build().toString());

A good solution for me was to drop the rows with any null values:

Dataset<Row> filtered = df.filter(row => !row.anyNull);

In case one is interested in the other case, just call row.anyNull. (Spark 2.1.0 using Java API)

For Version 78.0.3904.87, OS = Windows 7, 64 bit PC

Steps:

1. Press F12
2. Select Network Tab
3. Select XHR
4. Under Name --> you can see all the XHR requests made.
5. To view Request Headers of a particular XHR request, click on that request. All details about that XHR request will appear on right hand side.

Please find code for respected region.

Controller

ViewBag.hdnFlag= Session["hdnFlag"];

View

<input type="hidden" value="@ViewBag.hdnFlag" id="hdnFlag" />

JavaScript

var hdnFlagVal = $("#hdnFlag").val();

Swift 3:

let documentsURL = try! FileManager().url(for: .documentDirectory,
                                          in: .userDomainMask,
                                          appropriateFor: nil,
                                          create: true)

... gives you a file URL of the documents directory. The following checks if there's a file named foo.html:

let fooURL = documentsURL.appendingPathComponent("foo.html")
let fileExists = FileManager().fileExists(atPath: fooURL.path)

Objective-C:

NSString* documentsPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];

NSString* foofile = [documentsPath stringByAppendingPathComponent:@"foo.html"];
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:foofile];

1. When you don't want to keep your local changes at all.

git reset --hard

This command will completely remove all the local changes from your local repository. This is the best way to avoid conflicts during pull command, only if you don't want to keep your local changes at all.

2. When you want to keep your local changes

If you want to pull the new changes from remote and want to ignore the local changes during this pull then,

git stash

It will stash all the local changes, now you can pull the remote changes,

git pull

Now, you can bring back your local changes by,

git stash pop

You have to override your ; delimiter with something like $$ to avoid this kind of error.

After your function definition, you can set the delimiter back to ;.

This should work:

DELIMITER $$
CREATE FUNCTION F_Dist3D (x1 decimal, y1 decimal) 
RETURNS decimal
DETERMINISTIC
BEGIN 
  DECLARE dist decimal;
  SET dist = SQRT(x1 - y1);
  RETURN dist;
END$$
DELIMITER ;

chart.js supports this by defaul check the link. chartjs

you can set the label in the options attribute.

options object looks like this.

options = {
            scales: {
                yAxes: [
                    {
                        id: 'y-axis-1',
                        display: true,
                        position: 'left',
                        ticks: {
                            callback: function(value, index, values) {
                                return value + "%";
                            }
                        },
                        scaleLabel:{
                            display: true,
                            labelString: 'Average Personal Income',
                            fontColor: "#546372"
                        }
                    }   
                ]
            }
        };

set this :

#inner-right {
    height: 100%;
    max-height: 96%;//change here
    overflow: auto;
    background: ivory;
}

this will solve your problem.

I would think it is also difficult to study design patterns. You have to know more about OOP and some experiences with medium to big application development. For me, I study as a group of developers to make discussion. We follow A Learning Guide To Design Patterns that they have completed the patterns study. There are C# and JavaScript developers join together. It is fancy thing for me is the C# developer write codes in JavaScript and the JavaScript developer do the same thing for C# codes. After I leave a meeting I also research and read a few books at home to review. The better way to understand more and remember in my mind is to do blogging with examples in both C# and JavaScript in here http://tech.wowkhmer.com/category/Design-Patterns.aspx.

I would suggest first before going to each design patterns please understand the name of patterns. In addition if someone know the concept please just explain and give one example not only just programming but in the read world.

for example:

Factory Method:

Read world: I just give money $5, $10 or $20 and it will produce pizza back without knowing anything about how it produce, I just get a small, medium or big pizza depend on money input so that I can eat or do whatever.

Programming: The client just pass parameter value $5, $10 or $20 to the factory method and it will return Pizza object back. So the client can use that object without knowing how it process.

I'm not sure this can help you. It depends on knowledge level of people join in the meeting.

https://drive.google.com/open?id=0BzBKpZ4nzNzUR05nVUI1aVF6N1k

package com.keshav.speechtotextexample;

import java.util.ArrayList;
import java.util.Locale;

import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.view.Menu;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

   private TextView txtSpeechInput;
   private ImageButton btnSpeak;
   private final int REQ_CODE_SPEECH_INPUT = 100;

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

      txtSpeechInput = (TextView) findViewById(R.id.txtSpeechInput);
      btnSpeak = (ImageButton) findViewById(R.id.btnSpeak);

      // hide the action bar
      getActionBar().hide();

      btnSpeak.setOnClickListener(new View.OnClickListener() {

         @Override
         public void onClick(View v) {
            promptSpeechInput();
         }
      });

   }

   /**
    * Showing google speech input dialog
    * */
   private void promptSpeechInput() {
      Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
      intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
            RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
      intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
      intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
            getString(R.string.speech_prompt));
      try {
         startActivityForResult(intent, REQ_CODE_SPEECH_INPUT);
      } catch (ActivityNotFoundException a) {
         Toast.makeText(getApplicationContext(),
               getString(R.string.speech_not_supported),
               Toast.LENGTH_SHORT).show();
      }
   }

   /**
    * Receiving speech input
    * */
   @Override
   protected void onActivityResult(int requestCode, int resultCode, Intent data) {
      super.onActivityResult(requestCode, resultCode, data);

      switch (requestCode) {
      case REQ_CODE_SPEECH_INPUT: {
         if (resultCode == RESULT_OK && null != data) {

            ArrayList<String> result = data
                  .getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
            txtSpeechInput.setText(result.get(0));
         }
         break;
      }

      }
   }

   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.main, menu);
      return true;
   }

}


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

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/bg_gradient"
    android:orientation="vertical">

    <TextView
        android:id="@+id/txtSpeechInput"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="100dp"
        android:textColor="@color/white"
        android:textSize="26dp"
        android:textStyle="normal" />

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="60dp"
        android:gravity="center"
        android:orientation="vertical">

        <ImageButton
            android:id="@+id/btnSpeak"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@null"
            android:src="@drawable/ico_mic" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:text="@string/tap_on_mic"
            android:textColor="@color/white"
            android:textSize="15dp"
            android:textStyle="normal" />
    </LinearLayout>

</RelativeLayout>
===============================================================
<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">Speech To Text</string>
    <string name="action_settings">Settings</string>
    <string name="hello_world">Hello world!</string>
    <string name="speech_prompt">Say something&#8230;</string>
    <string name="speech_not_supported">Sorry! Your device doesn\'t support speech input</string>
    <string name="tap_on_mic">Tap on mic to speak</string>

</resources>
===============================================================
<resources>

    <!--
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
    -->
    <style name="AppBaseTheme" parent="android:Theme.Light">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.
        -->
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
    </style>

</resources>

&& it's operation return true only if both operand it's true which implies

bool and(bool b1, bool b2)]
{
 if(b1==true)
 {
   if(b2==true)
    return true;
 }
 return false;
}

|| it's operation return true if one or both operand it's true which implies

bool or(bool b1,bool b2)
{
 if(b1==true)
 return true;
 if(b2==true)
 return true;
 return false;
}

if You write

y=45&&34//45 binary 101101, 35 binary 100010

in result you have

y=32// in binary 100000

Therefore, the which I wrote above is used with respect to every pair of bits

In my case I'm using C# OracleCommand with OracleParameter, and I set all the the parameters Size property to max length of each column, then the error solved.

OracleParameter parm1 = new OracleParameter();
param1.OracleDbType = OracleDbType.Varchar2;
param1.Value = "test1";
param1.Size = 8;

OracleParameter parm2 = new OracleParameter();
param2.OracleDbType = OracleDbType.Varchar2;
param2.Value = "test1";
param2.Size = 12;

Microsoft Identity has extension methods which call async methods synchronously. For example there is GenerateUserIdentityAsync() method and equal CreateIdentity()

If you look at UserManagerExtensions.CreateIdentity() it look like this:

 public static ClaimsIdentity CreateIdentity<TUser, TKey>(this UserManager<TUser, TKey> manager, TUser user,
        string authenticationType)
        where TKey : IEquatable<TKey>
        where TUser : class, IUser<TKey>
    {
        if (manager == null)
        {
            throw new ArgumentNullException("manager");
        }
        return AsyncHelper.RunSync(() => manager.CreateIdentityAsync(user, authenticationType));
    }

Now lets see what AsyncHelper.RunSync does

  public static TResult RunSync<TResult>(Func<Task<TResult>> func)
    {
        var cultureUi = CultureInfo.CurrentUICulture;
        var culture = CultureInfo.CurrentCulture;
        return _myTaskFactory.StartNew(() =>
        {
            Thread.CurrentThread.CurrentCulture = culture;
            Thread.CurrentThread.CurrentUICulture = cultureUi;
            return func();
        }).Unwrap().GetAwaiter().GetResult();
    }

So, this is your wrapper for async method. And please don't read data from Result - it will potentially block your code in ASP.

There is another way - which is suspicious for me, but you can consider it too

  Result r = null;

            YourAsyncMethod()
                .ContinueWith(t =>
                {
                    r = t.Result;
                })
                .Wait();

You have several options:

string[] items = { "Item1", "Item2", "Item3", "Item4" };

string[] items = new string[]
{
  "Item1", "Item2", "Item3", "Item4"
};

string[] items = new string[10];
items[0] = "Item1";
items[1] = "Item2"; // ...

Try to import import { CommonModule } from '@angular/common'; in angular final as *ngFor ,*ngIf all are present in CommonModule

I'm gonna try to write this as a tutorial for you so it becomes easy to follow.

NOTE: This tutorial only works for older raspbian images. For the newer Raspbian based on Debian Buster see the following how-to in this thread: https://stackoverflow.com/a/58559140/869402

Pre-requirements

Before you start you need to make sure the following is installed:

apt-get install git rsync cmake libc6-i386 lib32z1 lib32stdc++6

Let's cross compile a Pie!

Start with making a folder in your home directory called raspberrypi.

Go in to this folder and pull down the ENTIRE tools folder you mentioned above:

git clone git://github.com/raspberrypi/tools.git

You wanted to use the following of the 3 ones, gcc-linaro-arm-linux-gnueabihf-raspbian, if I did not read wrong.

Go into your home directory and add:

export PATH=$PATH:$HOME/raspberrypi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin

to the end of the file named ~/.bashrc

Now you can either log out and log back in (i.e. restart your terminal session), or run . ~/.bashrc in your terminal to pick up the PATH addition in your current terminal session.

Now, verify that you can access the compiler arm-linux-gnueabihf-gcc -v. You should get something like this:

Using built-in specs.
COLLECT_GCC=arm-linux-gnueabihf-gcc
COLLECT_LTO_WRAPPER=/home/tudhalyas/raspberrypi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/../libexec/gcc/arm-linux-gnueabihf/4.7.2/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: /cbuild/slaves/oort61/crosstool-ng/builds/arm-linux-gnueabihf-raspbian-linux/.b
 uild/src/gcc-linaro-4.7-2012.08/configure --build=i686-build_pc-linux-gnu --host=i686-build_pc-
 linux-gnu --target=arm-linux-gnueabihf --prefix=/cbuild/slaves/oort61/crosstool-ng/builds/arm-l
 inux-gnueabihf-raspbian-linux/install --with-sysroot=/cbuild/slaves/oort61/crosstool-ng/builds/
 arm-linux-gnueabihf-raspbian-linux/install/arm-linux-gnueabihf/libc --enable-languages=c,c++,fo
 rtran --disable-multilib --with-arch=armv6 --with-tune=arm1176jz-s --with-fpu=vfp --with-float=
 hard --with-pkgversion='crosstool-NG linaro-1.13.1+bzr2458 - Linaro GCC 2012.08' --with-bugurl=
 https://bugs.launchpad.net/gcc-linaro --enable-__cxa_atexit --enable-libmudflap --enable-libgom
 p --enable-libssp --with-gmp=/cbuild/slaves/oort61/crosstool-ng/builds/arm-linux-gnueabihf-rasp
 bian-linux/.build/arm-linux-gnueabihf/build/static --with-mpfr=/cbuild/slaves/oort61/crosstool-
 ng/builds/arm-linux-gnueabihf-raspbian-linux/.build/arm-linux-gnueabihf/build/static --with-mpc
 =/cbuild/slaves/oort61/crosstool-ng/builds/arm-linux-gnueabihf-raspbian-linux/.build/arm-linux-
 gnueabihf/build/static --with-ppl=/cbuild/slaves/oort61/crosstool-ng/builds/arm-linux-gnueabihf
 -raspbian-linux/.build/arm-linux-gnueabihf/build/static --with-cloog=/cbuild/slaves/oort61/cros
 stool-ng/builds/arm-linux-gnueabihf-raspbian-linux/.build/arm-linux-gnueabihf/build/static --wi
 th-libelf=/cbuild/slaves/oort61/crosstool-ng/builds/arm-linux-gnueabihf-raspbian-linux/.build/a
 rm-linux-gnueabihf/build/static --with-host-libstdcxx='-L/cbuild/slaves/oort61/crosstool-ng/bui
 lds/arm-linux-gnueabihf-raspbian-linux/.build/arm-linux-gnueabihf/build/static/lib -lpwl' --ena
 ble-threads=posix --disable-libstdcxx-pch --enable-linker-build-id --enable-plugin --enable-gol
 d --with-local-prefix=/cbuild/slaves/oort61/crosstool-ng/builds/arm-linux-gnueabihf-raspbian-li
 nux/install/arm-linux-gnueabihf/libc --enable-c99 --enable-long-long
Thread model: posix
gcc version 4.7.2 20120731 (prerelease) (crosstool-NG linaro-1.13.1+bzr2458 - Linaro GCC 2012.08
 )

But hey! I did that and the libs still don't work!

We're not done yet! So far, we've only done the basics.

In your raspberrypi folder, make a folder called rootfs.

Now you need to copy the entire /liband /usr directory to this newly created folder. I usually bring the rpi image up and copy it via rsync:

rsync -rl --delete-after --safe-links [email protected]:/{lib,usr} $HOME/raspberrypi/rootfs

where 192.168.1.PI is replaced by the IP of your Raspberry Pi.

Now, we need to write a cmake config file. Open ~/home/raspberrypi/pi.cmake in your favorite editor and insert the following:

SET(CMAKE_SYSTEM_NAME Linux)
SET(CMAKE_SYSTEM_VERSION 1)
SET(CMAKE_C_COMPILER $ENV{HOME}/raspberrypi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf-gcc)
SET(CMAKE_CXX_COMPILER $ENV{HOME}/raspberrypi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf-g++)
SET(CMAKE_FIND_ROOT_PATH $ENV{HOME}/raspberrypi/rootfs)
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

Now you should be able to compile your cmake programs simply by adding this extra flag: -D CMAKE_TOOLCHAIN_FILE=$HOME/raspberrypi/pi.cmake.

Using a cmake hello world example:

git clone https://github.com/jameskbride/cmake-hello-world.git 
cd cmake-hello-world
mkdir build
cd build
cmake -D CMAKE_TOOLCHAIN_FILE=$HOME/raspberrypi/pi.cmake ../
make
scp CMakeHelloWorld [email protected]:/home/pi/
ssh [email protected] ./CMakeHelloWorld

Have your tried using the 'return' keyword?

def rps():
    return True

Swift 5

// Get the document directory url
let documentsUrl =  FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!

do {
    // Get the directory contents urls (including subfolders urls)
    let directoryContents = try FileManager.default.contentsOfDirectory(at: documentsUrl, includingPropertiesForKeys: nil)
    print(directoryContents)

    // if you want to filter the directory contents you can do like this:
    let mp3Files = directoryContents.filter{ $0.pathExtension == "mp3" }
    print("mp3 urls:",mp3Files)
    let mp3FileNames = mp3Files.map{ $0.deletingPathExtension().lastPathComponent }
    print("mp3 list:", mp3FileNames)

} catch {
    print(error)
}

More example from my project architecture you can see here:

+-- Dockerfile
+-- README.md
+-- config
¦   +-- production.json
+-- package.json
+-- schema
¦   +-- create-db.sh
¦   +-- db.sql
+-- scripts
¦   +-- deploy-production.sh 
+-- src
¦   +-- app -> Containes API routes
¦   +-- db -> DB Models (ORM)
¦   +-- server.js -> the Server initlializer.
+-- test

Basically, the logical app separated to DB and APP folders inside the SRC dir.

In redux-saga, the equivalent of the above example would be

export function* loginSaga() {
  while(true) {
    const { user, pass } = yield take(LOGIN_REQUEST)
    try {
      let { data } = yield call(request.post, '/login', { user, pass });
      yield fork(loadUserData, data.uid);
      yield put({ type: LOGIN_SUCCESS, data });
    } catch(error) {
      yield put({ type: LOGIN_ERROR, error });
    }  
  }
}

export function* loadUserData(uid) {
  try {
    yield put({ type: USERDATA_REQUEST });
    let { data } = yield call(request.get, `/users/${uid}`);
    yield put({ type: USERDATA_SUCCESS, data });
  } catch(error) {
    yield put({ type: USERDATA_ERROR, error });
  }
}

The first thing to notice is that we're calling the api functions using the form yield call(func, ...args). call doesn't execute the effect, it just creates a plain object like {type: 'CALL', func, args}. The execution is delegated to the redux-saga middleware which takes care of executing the function and resuming the generator with its result.

The main advantage is that you can test the generator outside of Redux using simple equality checks

const iterator = loginSaga()

assert.deepEqual(iterator.next().value, take(LOGIN_REQUEST))

// resume the generator with some dummy action
const mockAction = {user: '...', pass: '...'}
assert.deepEqual(
  iterator.next(mockAction).value, 
  call(request.post, '/login', mockAction)
)

// simulate an error result
const mockError = 'invalid user/password'
assert.deepEqual(
  iterator.throw(mockError).value, 
  put({ type: LOGIN_ERROR, error: mockError })
)

Note we're mocking the api call result by simply injecting the mocked data into the next method of the iterator. Mocking data is way simpler than mocking functions.

The second thing to notice is the call to yield take(ACTION). Thunks are called by the action creator on each new action (e.g. LOGIN_REQUEST). i.e. actions are continually pushed to thunks, and thunks have no control on when to stop handling those actions.

In redux-saga, generators pull the next action. i.e. they have control when to listen for some action, and when to not. In the above example the flow instructions are placed inside a while(true) loop, so it'll listen for each incoming action, which somewhat mimics the thunk pushing behavior.

The pull approach allows implementing complex control flows. Suppose for example we want to add the following requirements

• Handle LOGOUT user action

• upon the first successful login, the server returns a token which expires in some delay stored in a expires_in field. We'll have to refresh the authorization in the background on each expires_in milliseconds

• Take into account that when waiting for the result of api calls (either initial login or refresh) the user may logout in-between.

How would you implement that with thunks; while also providing full test coverage for the entire flow? Here is how it may look with Sagas:

function* authorize(credentials) {
  const token = yield call(api.authorize, credentials)
  yield put( login.success(token) )
  return token
}

function* authAndRefreshTokenOnExpiry(name, password) {
  let token = yield call(authorize, {name, password})
  while(true) {
    yield call(delay, token.expires_in)
    token = yield call(authorize, {token})
  }
}

function* watchAuth() {
  while(true) {
    try {
      const {name, password} = yield take(LOGIN_REQUEST)

      yield race([
        take(LOGOUT),
        call(authAndRefreshTokenOnExpiry, name, password)
      ])

      // user logged out, next while iteration will wait for the
      // next LOGIN_REQUEST action

    } catch(error) {
      yield put( login.error(error) )
    }
  }
}

In the above example, we're expressing our concurrency requirement using race. If take(LOGOUT) wins the race (i.e. user clicked on a Logout Button). The race will automatically cancel the authAndRefreshTokenOnExpiry background task. And if the authAndRefreshTokenOnExpiry was blocked in middle of a call(authorize, {token}) call it'll also be cancelled. Cancellation propagates downward automatically.

You can find a runnable demo of the above flow

This is the hibernate.cfg.xml file to connect postgresql 9.5 and this is help to you basic configuration.

 <?xml version='1.0' encoding='utf-8'?>

<!--
  ~ Hibernate, Relational Persistence for Idiomatic Java
  ~
  ~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.
  ~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
  -->
<!DOCTYPE hibernate-configuration SYSTEM
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration
>
    <session-factory>
        <!-- Database connection settings -->
        <property name="connection.driver_class">org.postgresql.Driver</property>
        <property name="connection.url">jdbc:postgresql://localhost:5433/hibernatedb</property>
        <property name="connection.username">postgres</property>
        <property name="connection.password">password</property>

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>

        <!-- SQL dialect -->
        <property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>

        <!-- Enable Hibernate's automatic session context management -->
        <property name="current_session_context_class">thread</property>

        <!-- Disable the second-level cache  -->
        <property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>

        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">create</property>
        <mapping class="com.waseem.UserDetails"/>
    </session-factory>
</hibernate-configuration>

Make sure File Location should be under src/main/resources/hibernate.cfg.xml

Please read the whole answer before attempting to run with sudo

Try running sudo /dvtcolorconvert.rb ~/Themes/ObsidianCode.xccolortheme

The sudo command executes the commands which follow it with 'superuser' or 'root' privileges. This should allow you to execute almost anything from the command line. That said, DON'T DO THIS! If you are running a script on your computer and don't need it to access core components of your operating system (I'm guessing you're not since you are invoking the script on something inside your home directory (~/)), then it should be running from your home directory, ie:

~/dvtcolorconvert.rb ~/Themes/ObsidianCode.xccolortheme

Move it to ~/ or a sub directory and execute from there. You should never have permission issues there and there wont be a risk of it accessing or modifying anything critical to your OS.

If you are still having problems you can check the permissions on the file by running ls -l while in the same directory as the ruby script. You will get something like this:

$ ls -l  
total 13  
drwxr-xr-x    4 or019268 Administ    12288 Apr 10 18:14 TestWizard  
drwxr-xr-x    4 or019268 Administ     4096 Aug 27 12:41 Wizard.Controls  
drwxr-xr-x    5 or019268 Administ     8192 Sep  5 00:03 Wizard.UI  
-rw-r--r--    1 or019268 Administ     1375 Sep  5 00:03 readme.txt

You will notice that the readme.txt file says -rw-r--r-- on the left. This shows the permissions for that file. The 9 characters from the right can be split into groups of 3 characters of 'rwx' (read, write, execute). If I want to add execute rights to this file I would execute chmod 755 readme.txt and that permissions portion would become rwxr-xr-x. I can now execute this file if I want to by running ./readme.txt (./ tells the bash to look in the current directory for the intended command rather that search the $PATH variable).

schluchc alludes to looking at the man page for chmod, do this by running man chmod. This is the best way to get documentation on a given command, man <command>

Hi had the exact same problem and I don't see the answer I used posted, so here it is.

I created and connected my text field via IB. When I connected it to my code via Control+Drag, I chose Action, then selected the Editing Changed event. This triggers the method on each character entry. You can use a different event to suit.

Afterwards, I used this simple code to replace the text. Note that I created my own character set to include the decimal/period character and numbers. Basically separates the string on the invalid characters, then rejoins them with empty string.

- (IBAction)myTextFieldEditingChangedMethod:(UITextField *)sender {
        NSCharacterSet *validCharacterSet = [NSCharacterSet characterSetWithCharactersInString:@".0123456789"];
        NSCharacterSet *invalidCharacterSet = validCharacterSet.invertedSet;
        sender.text = [[sender.text componentsSeparatedByCharactersInSet:invalidCharacterSet] componentsJoinedByString:@""];
}

Credits: Remove all but numbers from NSString

The answers above are still using the old Python 3.4 style coroutines. Here is what you would write if you got Python 3.5+.

aiohttp supports http proxy now

import aiohttp
import asyncio

async def fetch(session, url):
    async with session.get(url) as response:
        return await response.text()

async def main():
    urls = [
            'http://python.org',
            'https://google.com',
            'http://yifei.me'
        ]
    tasks = []
    async with aiohttp.ClientSession() as session:
        for url in urls:
            tasks.append(fetch(session, url))
        htmls = await asyncio.gather(*tasks)
        for html in htmls:
            print(html[:100])

if __name__ == '__main__':
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main())

EBS is simple - block level storage which can be attached to an instance from same AZ, and can survive irrespective of instance life.

However, interesting difference is between EFS and S3, and to identify proper use cases for it.

Cost: EFS is approximately 10 times costly than S3.

Usecases:

• Whenever we have thousands of instances who needs to process file simultaneously EFS is recommended over S3.
• Also note that S3 is object based storage while EFS is file based it implies that whenever we have requirement that files are updated continuously (refreshed) we should use EFS.
• S3 is eventually consistent while EFS is strong consistent. In case you can't afford eventual consistency, you should use EFS

I solved just by: given correct host and port so:

1. Open oracle net manager
2. Local
3. Listener

in Listener on address 2 then copy host to Oracle Developer

finally connect to oracle

I faced this error before

when I tried to update specific field in my model in entity framwork

Letter letter = new Letter {ID = letterId, ExportNumber = letterExportNumber,EntityState = EntityState.Modified};
LetterService.ChangeExportNumberfor(letter);
//----------


public int ChangeExportNumber(Letter letter)
    {
        int result = 0;
        using (var db = ((LettersGeneratorEntities) GetContext()))
        {
            db.Letters.Attach(letter);
            db.Entry(letter).Property(x => x.ExportNumber).IsModified = true;
            result += db.SaveChanges();
        }
        return result;
    }

and according the above answers

I found the Validation message The SignerName field is required.

which pointing to field in my model

and when I checked my database schema I found

so off coure ValidationException has its right to raise

and according to this field I want it to be nullable, (I dont know how I messed it)

so I changed that field to allow Null, and by this my code will not give me this error again

so This error maybe will happened if you invalidate Your Data integrity of your database

If you get this error on an .MDF file in the APP_DATA folder (or where ever you put it) for a Visual Studio project, the way I did it was to simply copy permissions from the existing DATA folder here (I'm using SQL Express 2014 to support an older app):

C:\Program Files\Microsoft SQL Server\MSSQL12.SQLEXPRESS2014\MSSQL\DATA

(note: your actual install path my vary - especially if your instance name is different)

Double click on theDATA folder first as administrator to make sure you have access, then open the properties on the folder and mimic the same for the APP_DATA folder. In my case the missing user was MSSQL$SQLEXPRESS2014 (because I named the instance SQLEXPRESS2014 - yours may be different). That also happens to be the SQL Server service username.

I believe i have found the answer, This code converts the integer to a hex string an removes the alpha.

Integer intColor = -16895234;
String hexColor = "#" + Integer.toHexString(intColor).substring(2);

Note only use this code if you are sure that removing the alpha would not affect anything.

I had same issue with sqlite. My models.py looked all right. I did the following:

sqlite3 db.sqlite3
.tables
PRAGMA table_info(table_name);

Thru PRAGMA I was able to see that there was columns missing in the table failing. I dropped all tables in the app. Be careful because this will make lose your data in the tables.

DROP table table_name
.quit

Then do this:

python manage.py makemigrations your_app
python manage.py migrate your_app
python manage.py sqlmigrate your_app 0001

Then enter again to sqlite as follows and paste all the code you got from sqlimigrate:

sqlite3 db.sqlite3

As an example, this is what I pasted inside sqlite:

CREATE TABLE "adpet_ad" ("id" integer NOT NULL PRIMARY KEY AUTOINCREMENT, "title" varchar(200) NOT NULL, "breed" varchar(30) NULL, "weight" decimal NULL, "age" integer NULL, "text" text NOT NULL, "created_at" datetime NOT NULL, "updated_at" datetime NOT NULL, "picture" BLOB NULL, "content_type" varchar(256) NULL, "name" varchar(100) NULL, "phone" varchar(31) NOT NULL, "gender_id" integer NULL REFERENCES "adpet_gender" ("id") DEFERRABLE INITIALLY DEFERRED, "owner_id" integer NOT NULL REFERENCES "auth_user" ("id") DEFERRABLE INITIALLY DEFERRED, "size_id" integer NULL REFERENCES "adpet_size" ("id") DEFERRABLE INITIALLY DEFERRED, "specie_id" integer NULL REFERENCES "adpet_specie" ("id") DEFERRABLE INITIALLY DEFERRED, "sterilized_id" integer NULL REFERENCES "adpet_sterilized" ("id") DEFERRABLE INITIALLY DEFERRED, "vaccinated_id" integer NULL REFERENCES "adpet_vaccinated" ("id") DEFERRABLE INITIALLY DEFERRED);

Database, dict of dicts, dictionary of list of dictionaries, named tuple (it's a subclass), sqlite, redundancy... I didn't believe my eyes. What else ?

"It might well be that dictionaries with tuples as keys are not the proper way to handle this situation."

"my gut feeling is that a database is overkill for the OP's needs; "

Yeah! I thought

So, in my opinion, a list of tuples is plenty enough :

from operator import itemgetter

li = [  ('banana',     'blue'   , 24) ,
        ('apple',      'green'  , 12) ,
        ('strawberry', 'blue'   , 16 ) ,
        ('banana',     'yellow' , 13) ,
        ('apple',      'gold'   , 3 ) ,
        ('pear',       'yellow' , 10) ,
        ('strawberry', 'orange' , 27) ,
        ('apple',      'blue'   , 21) ,
        ('apple',      'silver' , 0 ) ,
        ('strawberry', 'green'  , 4 ) ,
        ('banana',     'brown'  , 14) ,
        ('strawberry', 'yellow' , 31) ,
        ('apple',      'pink'   , 9 ) ,
        ('strawberry', 'gold'   , 0 ) ,
        ('pear',       'gold'   , 66) ,
        ('apple',      'yellow' , 9 ) ,
        ('pear',       'brown'  , 5 ) ,
        ('strawberry', 'pink'   , 8 ) ,
        ('apple',      'purple' , 7 ) ,
        ('pear',       'blue'   , 51) ,
        ('chesnut',    'yellow',  0 )   ]


print set( u[1] for u in li ),': all potential colors'
print set( c for f,c,n in li if n!=0),': all effective colors'
print [ c for f,c,n in li if f=='banana' ],': all potential colors of bananas'
print [ c for f,c,n in li if f=='banana' and n!=0],': all effective colors of bananas'
print

print set( u[0] for u in li ),': all potential fruits'
print set( f for f,c,n in li if n!=0),': all effective fruits'
print [ f for f,c,n in li if c=='yellow' ],': all potential fruits being yellow'
print [ f for f,c,n in li if c=='yellow' and n!=0],': all effective fruits being yellow'
print

print len(set( u[1] for u in li )),': number of all potential colors'
print len(set(c for f,c,n in li if n!=0)),': number of all effective colors'
print len( [c for f,c,n in li if f=='strawberry']),': number of potential colors of strawberry'
print len( [c for f,c,n in li if f=='strawberry' and n!=0]),': number of effective colors of strawberry'
print

# sorting li by name of fruit
print sorted(li),'  sorted li by name of fruit'
print

# sorting li by number 
print sorted(li, key = itemgetter(2)),'  sorted li by number'
print

# sorting li first by name of color and secondly by name of fruit
print sorted(li, key = itemgetter(1,0)),'  sorted li first by name of color and secondly by name of fruit'
print

result

set(['blue', 'brown', 'gold', 'purple', 'yellow', 'pink', 'green', 'orange', 'silver']) : all potential colors
set(['blue', 'brown', 'gold', 'purple', 'yellow', 'pink', 'green', 'orange']) : all effective colors
['blue', 'yellow', 'brown'] : all potential colors of bananas
['blue', 'yellow', 'brown'] : all effective colors of bananas

set(['strawberry', 'chesnut', 'pear', 'banana', 'apple']) : all potential fruits
set(['strawberry', 'pear', 'banana', 'apple']) : all effective fruits
['banana', 'pear', 'strawberry', 'apple', 'chesnut'] : all potential fruits being yellow
['banana', 'pear', 'strawberry', 'apple'] : all effective fruits being yellow

9 : number of all potential colors
8 : number of all effective colors
6 : number of potential colors of strawberry
5 : number of effective colors of strawberry

[('apple', 'blue', 21), ('apple', 'gold', 3), ('apple', 'green', 12), ('apple', 'pink', 9), ('apple', 'purple', 7), ('apple', 'silver', 0), ('apple', 'yellow', 9), ('banana', 'blue', 24), ('banana', 'brown', 14), ('banana', 'yellow', 13), ('chesnut', 'yellow', 0), ('pear', 'blue', 51), ('pear', 'brown', 5), ('pear', 'gold', 66), ('pear', 'yellow', 10), ('strawberry', 'blue', 16), ('strawberry', 'gold', 0), ('strawberry', 'green', 4), ('strawberry', 'orange', 27), ('strawberry', 'pink', 8), ('strawberry', 'yellow', 31)]   sorted li by name of fruit

[('apple', 'silver', 0), ('strawberry', 'gold', 0), ('chesnut', 'yellow', 0), ('apple', 'gold', 3), ('strawberry', 'green', 4), ('pear', 'brown', 5), ('apple', 'purple', 7), ('strawberry', 'pink', 8), ('apple', 'pink', 9), ('apple', 'yellow', 9), ('pear', 'yellow', 10), ('apple', 'green', 12), ('banana', 'yellow', 13), ('banana', 'brown', 14), ('strawberry', 'blue', 16), ('apple', 'blue', 21), ('banana', 'blue', 24), ('strawberry', 'orange', 27), ('strawberry', 'yellow', 31), ('pear', 'blue', 51), ('pear', 'gold', 66)]   sorted li by number

[('apple', 'blue', 21), ('banana', 'blue', 24), ('pear', 'blue', 51), ('strawberry', 'blue', 16), ('banana', 'brown', 14), ('pear', 'brown', 5), ('apple', 'gold', 3), ('pear', 'gold', 66), ('strawberry', 'gold', 0), ('apple', 'green', 12), ('strawberry', 'green', 4), ('strawberry', 'orange', 27), ('apple', 'pink', 9), ('strawberry', 'pink', 8), ('apple', 'purple', 7), ('apple', 'silver', 0), ('apple', 'yellow', 9), ('banana', 'yellow', 13), ('chesnut', 'yellow', 0), ('pear', 'yellow', 10), ('strawberry', 'yellow', 31)]   sorted li first by name of color and secondly by name of fruit

$<?
$db = sqlite_open('mysqlitedb');
$cols = sqlite_fetch_column_types('form name'$db, SQLITE_ASSOC);
foreach ($cols as $column => $type) {
  echo "Column: $column  Type: $type\n";
}

Show / hide by mouse click:

<script language="javascript">

    function toggle() {

        var ele = document.getElementById("toggleText");
        var text = document.getElementById("displayText");

        if (ele.style.display == "block") {

            ele.style.display = "none";
            text.innerHTML = "show";
        }
        else {

            ele.style.display = "block";
            text.innerHTML = "hide";
        }
    }
</script>

<a id="displayText" href="javascript:toggle();">show</a> <== click Here

<div id="toggleText" style="display: none"><h1>peek-a-boo</h1></div>

Source: Here

Here's a solution I coded up today for a situation where I needed to parse a CSV without relying on external libraries. I haven't tested performance for large files since it wasn't relevant to my particular use case but I'd expect it to perform reasonably well for most situations.

        static List<List<string>> ParseCsv(string csv) {
            var parsedCsv = new List<List<string>>();
            var row = new List<string>();
            string field = "";
            bool inQuotedField = false;

            for (int i = 0; i < csv.Length; i++) {
                char current = csv[i];
                char next = i == csv.Length - 1 ? ' ' : csv[i + 1];

                // if current character is not a quote or comma or carriage return or newline (or not a quote and currently in an a quoted field), just add the character to the current field text
                if ((current != '"' && current != ',' && current != '\r' && current != '\n') || (current != '"' && inQuotedField)) {
                    field += current;
                } else if (current == ' ' || current == '\t') {
                    continue; // ignore whitespace outside a quoted field
                } else if (current == '"') {
                    if (inQuotedField && next == '"') { // quote is escaping a quote within a quoted field
                        i++; // skip escaping quote
                        field += current;
                    } else if (inQuotedField) { // quote signifies the end of a quoted field
                        row.Add(field);
                        if (next == ',') {
                            i++; // skip the comma separator since we've already found the end of the field
                        }
                        field = "";
                        inQuotedField = false;
                    } else { // quote signifies the beginning of a quoted field
                        inQuotedField = true; 
                    }
                } else if (current == ',') { //
                    row.Add(field);
                    field = "";
                } else if (current == '\n') {
                    row.Add(field);
                    parsedCsv.Add(new List<string>(row));
                    field = "";
                    row.Clear();
                }
            }

            return parsedCsv;
        }

 https://maps.googleapis.com/maps/api/geocode/json?address=36,+Langford+Rd,+Bheemanna+Garden,+Langford+Gardens,+Bengaluru,+Karnataka+560027&key=<apikey>

with direction services enabled worked for me

Even I faced the same issue - when checked on dashboard I found following Error. As the data was coming through Flume and had interrupted in between due to which may be there was inconsistency in few files.

Caused by: org.apache.hadoop.hive.serde2.SerDeException: org.codehaus.jackson.JsonParseException: Unexpected end-of-input within/between OBJECT entries

Running on fewer files it worked. Format consistency was the reason in my case.

You could issue a "HEAD" request rather than a "GET"?

(edit) - lol! Looks like I've done this before!; changed to wiki to avoid accusations of rep-garnering. So to test a URL without the cost of downloading the content:

// using MyClient from linked post
using(var client = new MyClient()) {
    client.HeadOnly = true;
    // fine, no content downloaded
    string s1 = client.DownloadString("http://google.com");
    // throws 404
    string s2 = client.DownloadString("http://google.com/silly");
}

You would try/catch around the DownloadString to check for errors; no error? It exists...

With C# 2.0 (VS2005):

private bool headOnly;
public bool HeadOnly {
    get {return headOnly;}
    set {headOnly = value;}
}

and

using(WebClient client = new MyClient())
{
    // code as before
}

var y = $(window).scrollTop();  //your current y position on the page
$(window).scrollTop(y+150);

The following code works fine:

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

and generates as expected:

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

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

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

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

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

After reading all these answers here in order to symbolicate a crash log (and finally succeeding) I think there are some points missing here that are really important in order to determine why the invocation of symbolicatecrash does not produce a symbolicated output.

There are 3 assets that have to fit together when symbolicating a crash log:

1. The crash log file itself (i.e. example.crash), either exported from XCode's organizer or received from iTunes Connect.
2. The .app package (i.e. example.app) that itself contains the app binary belonging to the crash log. If you have an .ipa package (i.e. example.ipa) then you can extract the .app package by unzipping the .ipa package (i.e. unzip example.ipa). Afterwards the .app package resides in the extracted Payload/ folder.
3. The .dSYM package containing the debug symbols (i.e. example.app.dSYM)

Before starting symbolication you should check if all those artifacts match, which means that the crash log belongs to the binary you have and that the debug symbols are the ones produced during the build of that binary.

Each binary is referred by a UUID that can be seen in the crash log file:

...
Binary Images:
0xe1000 -    0x1f0fff +example armv7  <aa5e633efda8346cab92b01320043dc3> /var/mobile/Applications/9FB5D11F-42C0-42CA-A336-4B99FF97708F/example.app/example
0x2febf000 - 0x2fedffff  dyld armv7s  <4047d926f58e36b98da92ab7a93a8aaf> /usr/lib/dyld
...

In this extract the crash log belongs to an app binary image named example.app/example with UUID aa5e633efda8346cab92b01320043dc3.

You can check the UUID of the binary package you have with dwarfdump:

dwarfdump --uuid example.app/example
UUID: AA5E633E-FDA8-346C-AB92-B01320043DC3 (armv7) example.app/example

Afterwards you should check if the debug symbols you have also belong to that binary:

dwarfdump --uuid example.app.dSYM
UUID: AA5E633E-FDA8-346C-AB92-B01320043DC3 (armv7) example.app.dSYM/Contents/Resources/DWARF/example

In this example all assets fit together and you should be able to symbolicate your stacktrace.

Proceeding to the symbolicatecrash script:

In Xcode 8.3 you should be able to invoke the script via

/Applications/Xcode.app/Contents/SharedFrameworks/DVTFoundation.framework/Versions/A/Resources/symbolicatecrash -v example.crash 2> symbolicate.log

If it is not there you may run a find . -name symbolicatecrash in your Xcode.app directory to find it.

As you can see there are no more parameters given. So the script has to find your application binary and debug symbols by running a spotlight search. It searches the debug symbols with a specific index called com_apple_xcode_dsym_uuids. You can do this search yourself:

mdfind 'com_apple_xcode_dsym_uuids = *'

resp.

mdfind "com_apple_xcode_dsym_uuids == AA5E633E-FDA8-346C-AB92-B01320043DC3"

The first spotlight invocation gives you all indexed dSYM packages and the second one gives you the .dSYM packages with a specific UUID. If spotlight does not find your .dSYM package then symbolicatecrash will neither. If you do all this stuff e.g. in a subfolder of your ~/Desktop spotlight should be able to find everything.

If symbolicatecrash finds your .dSYM package there should be a line like the following in symbolicate.log:

@dsym_paths = ( <SOME_PATH>/example.app.dSYM/Contents/Resources/DWARF/example )

For finding your .app package a spotlight search like the following is invoked by symbolicatecrash:

mdfind "kMDItemContentType == com.apple.application-bundle && (kMDItemAlternateNames == 'example.app' || kMDItemDisplayName == 'example' || kMDItemDisplayName == 'example.app')"

If symbolicatecrash finds your .app package there should be the following extract in symbolicate.log:

Number of symbols in <SOME_PATH>/example.app/example: 2209 + 19675 = 21884
Found executable <SOME_PATH>/example.app/example
-- MATCH

If all those resources are found by symbolicatecrash it should print out the symbolicated version of your crash log.

If not you can pass in your dSYM and .app files directly.

symbolicatecrash -v --dsym <SOME_PATH>/<App_URI>.app.dSYM/<APP_NAME>.app.dsym <CRASHFILE> <SOME_OTHER_PATH>/<APP_NAME>.app/<APP_NAME> > symbolicate.log

Note: The symbolicated backtrace will be output to terminal, not symbolicate.log.

In Visual Studio 2015 (this still holds in 2019 for the same value), check the setting:

Tools > Options > Environment > Documents > Check for consistent line endings on load

VS2015 will now prompt you to convert line endings when you open a file where they are inconsistent, so all you need to do is open the files, select the desired option from the prompt and save them again.

In order to checkout a git tag , you would execute the following command

git checkout tags/tag-name -b branch-name

eg as mentioned below.

 git checkout tags/v1.0 -b v1.0-branch

To fetch the all tags use the command

git fetch --all --tags

There are also these 'ways':

>>> dict.fromkeys(range(1, 4))
{1: None, 2: None, 3: None}
>>> dict(zip(range(1, 4), range(1, 4)))
{1: 1, 2: 2, 3: 3}

There is no performance difference between importing the package or using the fully qualified class name. The import directive is not converted to Java byte code, consequently there is no effect on runtime performance. The only difference is that it saves you time in case you are using the imported class multiple times. This is a good read here

With the integration of JEP 325: Switch Expressions (Preview) in JDK-12 early access builds, one can now make use of the new form of the switch label as :-

case text1, text4 -> {
     //blah
} 

or to rephrase the demo from one of the answers, something like :-

public class RephraseDemo {

    public static void main(String[] args) {
        int month = 9;
        int year = 2018;
        int numDays = 0;

        switch (month) {
            case 1, 3, 5, 7, 8, 10, 12 ->{
                numDays = 31;
            }
            case 4, 6, 9, 11 ->{
                numDays = 30;
            }
            case 2 ->{
                if (((year % 4 == 0) &&
                        !(year % 100 == 0))
                        || (year % 400 == 0))
                    numDays = 29;
                else
                    numDays = 28;
            }
            default ->{
                System.out.println("Invalid month.");

            }
        }
        System.out.println("Number of Days = " + numDays);
    }
}

Here is how you can give it a try - Compile a JDK12 preview feature with Maven

I was in the same situation, wanting to .NET instead of a third party library. As another poster mentioned above, simply using the ZipPackage class (introduced in .NET 3.5) is not quite enough. There is an additional file that MUST be included in the archive in order for the ZipPackage to work. If this file is added, then the resulting ZIP package can be opened directly from Windows Explorer - no problem.

All you have to do is add the [Content_Types].xml file to the root of the archive with a "Default" node for every file extension you wish to include. Once added, I could browse the package from Windows Explorer or programmatically decompress and read its contents.

More information on the [Content_Types].xml file can be found here: http://msdn.microsoft.com/en-us/magazine/cc163372.aspx

Here is a sample of the [Content_Types].xml (must be named exactly) file:

<?xml version="1.0" encoding="utf-8" ?>
<Types xmlns=
    "http://schemas.openxmlformats.org/package/2006/content-types">
  <Default Extension="xml" ContentType="text/xml" /> 
  <Default Extension="htm" ContentType="text/html" /> 
  <Default Extension="html" ContentType="text/html" /> 
  <Default Extension="rels" ContentType=
    "application/vnd.openxmlformats-package.relationships+xml" /> 
  <Default Extension="jpg" ContentType="image/jpeg" /> 
  <Default Extension="png" ContentType="image/png" /> 
  <Default Extension="css" ContentType="text/css" /> 
</Types>

And the C# for creating a ZIP file:

var zipFilePath = "c:\\myfile.zip"; 
var tempFolderPath = "c:\\unzipped"; 

    using (Package package = ZipPackage.Open(zipFilePath, FileMode.Open, FileAccess.Read)) 
    { 
        foreach (PackagePart part in package.GetParts()) 
        { 
            var target = Path.GetFullPath(Path.Combine(tempFolderPath, part.Uri.OriginalString.TrimStart('/'))); 
            var targetDir = target.Remove(target.LastIndexOf('\\')); 

            if (!Directory.Exists(targetDir)) 
                Directory.CreateDirectory(targetDir); 

            using (Stream source = part.GetStream(FileMode.Open, FileAccess.Read)) 
            { 
                source.CopyTo(File.OpenWrite(target)); 
            } 
        } 
    } 

Note:

• This code uses the Stream.CopyTo method in .NET 4.0
• This will become much simpler with the introduction of the ZipArchive class in .NET 4.5: http://msdn.microsoft.com/en-us/library/system.io.compression.ziparchive(v=vs.110).aspx

This is my implementation to convert any kind of encoding to UTF-8 without BOM and replacing windows enlines by universal format:

def utf8_converter(file_path, universal_endline=True):
    '''
    Convert any type of file to UTF-8 without BOM
    and using universal endline by default.

    Parameters
    ----------
    file_path : string, file path.
    universal_endline : boolean (True),
                        by default convert endlines to universal format.
    '''

    # Fix file path
    file_path = os.path.realpath(os.path.expanduser(file_path))

    # Read from file
    file_open = open(file_path)
    raw = file_open.read()
    file_open.close()

    # Decode
    raw = raw.decode(chardet.detect(raw)['encoding'])
    # Remove windows end line
    if universal_endline:
        raw = raw.replace('\r\n', '\n')
    # Encode to UTF-8
    raw = raw.encode('utf8')
    # Remove BOM
    if raw.startswith(codecs.BOM_UTF8):
        raw = raw.replace(codecs.BOM_UTF8, '', 1)

    # Write to file
    file_open = open(file_path, 'w')
    file_open.write(raw)
    file_open.close()
    return 0

Because string is defined in the namespace std. Replace string with std::string, or add

using std::string;

below your include lines.

It probably works in main.cpp because some other header has this using line in it (or something similar).

You want to be able to pass in a Class and get a type-safe instance of that class? Try the following:

public static void main(String [] args) throws Exception {
    String s = instanceOf(String.class);
}

public static <T> T instanceOf (Class<T> clazz) throws Exception {
    return clazz.newInstance();
}

I am not sure but you can try intialising handler to null in onDestroy()

You could find the difference between dates in columns in a data frame by using the function difftime as follows:

df$diff_in_days<- difftime(df$datevar1 ,df$datevar2 , units = c("days"))

in your shell script (or .bashrc) you may use somthing like:

umask 022

umask is a command that determines the settings of a mask that controls how file permissions are set for newly created files.

Strongly simplified version of max:

def max(items, key=lambda x: x):
    current = item[0]
    for item in items:
        if key(item) > key(current):
            current = item
    return current

Regarding lambda:

>>> ident = lambda x: x
>>> ident(3)
3
>>> ident(5)
5

>>> times_two = lambda x: 2*x
>>> times_two(2)
4