• Structure and class are user defied data types

• By default, structure is a public whereas class is private

• Class implements the principal of encapsulation

• Objects of a class are created on the heap memory

• Class is used for re usability whereas structure is used for grouping the data in the same structure

• Structure data members cannot be initialized directly but they can be assigned by the outside the structure

• Class data members can be initialized directly by the parameter less constructor and assigned by the parameterized constructor

In a very simple sentence, we can say:

The child class must not violate its base class characteristics. It must be capable with it. We can say it's same as subtyping.

You can create a RegExp object to make it a bit more readable

str.replace(new RegExp('/'), 'foobar');

If you want to replace all of them add the "g" flag

str.replace(new RegExp('/', 'g'), 'foobar');

MVC 5.0 Workaround.

Many of the suggested answers doesn't seem to work in MVC 5.0.

As the 404 dot problem in the last section can be solved by closing that section with a trailing slash, here's the little trick I use, clean and simple.

While keeping a convenient placeholder in your view:

@Html.ActionLink("Change your Town", "Manage", "GeoData", new { id = User.Identity.Name }, null)

add a little jquery/javascript to get the job done:

<script>
    $('a:contains("Change your Town")').on("click", function (event) {
        event.preventDefault();
        window.location.href = '@Url.Action("Manage", "GeoData", new { id = User.Identity.Name })' + "/";
    });</script>

please note the trailing slash, that is responsible for changing

http://localhost:51003/GeoData/Manage/[email protected]

into

http://localhost:51003/GeoData/Manage/[email protected]/

<script src="jquery.min.js"></script>
<table border="1" id="ReportTable" class="myClass">
    <tr bgcolor="#CCC">
      <td width="100">xxxxx</td>
      <td width="700">xxxxxx</td>
      <td width="170">xxxxxx</td>
      <td width="30">xxxxxx</td>
    </tr>
    <tr bgcolor="#FFFFFF">
      <td><?php                 
            $date = date_create($row_Recordset3['fecha']);
            echo date_format($date, 'd-m-Y');
            ?></td>
      <td><?php echo $row_Recordset3['descripcion']; ?></td>
      <td><?php echo $row_Recordset3['producto']; ?></td>
      <td><img src="borrar.png" width="14" height="14" class="clickable" onClick="eliminarSeguimiento(<?php echo $row_Recordset3['idSeguimiento']; ?>)" title="borrar"></td>
    </tr>
  </table>

  <input type="hidden" id="datatodisplay" name="datatodisplay">  
    <input type="submit" value="Export to Excel"> 

exporttable.php

<?php
header('Content-Type: application/force-download');
header('Content-disposition: attachment; filename=export.xls');
// Fix for crappy IE bug in download.
header("Pragma: ");
header("Cache-Control: ");
echo $_REQUEST['datatodisplay'];
?>

A bat file has no structure...it is how you would type it on the command line. So just open your favourite editor..copy the line of code you want to run..and save the file as whatever.bat or whatever.cmd

a[len(a):] - This gets you the length of a to the end. It selects a range. If you reverse a[:len(a)] it will get you the beginning to whatever is len(a).

• There is no limit on objects per bucket.
• There is a limit of 100 buckets per account (you need to request amazon if you need more).
• There is no performance drop even if you store millions of objects in a single bucket.

From docs,

There is no limit to the number of objects that can be stored in a bucket and no difference in performance whether you use many buckets or just a few. You can store all of your objects in a single bucket, or you can organize them across several buckets.

as of Aug 2016

` Please include either of these:

`#include<sstream>`

using std::istringstream; 

Try with !important in css.

a {
  outline:none !important;
}
// it is `very important` that there is `no` `outline` for the `anchor` tag.  Thanks!

You can use modulus %, the solution is so simple:

import java.text.DecimalFormat;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {

    Scanner scan = new Scanner(System.in);
    System.out.println("Enter first number");
    Double m = scan.nextDouble();
    System.out.println("Enter second number");
    Double n= scan.nextDouble();

    if(m%n==0) 
    {
        System.out.println("Integer");
    }
    else
    {
        System.out.println("Double");
    }


}
}

I would just not add it in the first place:

 var sb = new StringBuilder();

 bool first = true;
 foreach (var foo in items) {
    if (first)
        first = false;
    else
        sb.Append('&');

    // for example:
    var escapedValue = System.Web.HttpUtility.UrlEncode(foo);

    sb.Append(key).Append('=').Append(escapedValue);
 }

 var s = sb.ToString();

In the beaten-up MVC pattern, the Servlet is "C" - controller.

Its main job is to do initial request evaluation and then dispatch the processing based on the initial evaluation to the specific worker. One of the worker's responsibilities may be to setup some presentation layer beans and forward the request to the JSP page to render HTML. So, for this reason alone, you need to pass the request object to the service layer.

I would not, though, start writing raw Servlet classes. The work they do is very predictable and boilerplate, something that framework does very well. Fortunately, there are many available, time-tested candidates ( in the alphabetical order ): Apache Wicket, Java Server Faces, Spring to name a few.

You could merge two queries together:

$merged = $query_one->merge($query_two);

Thou the above answer is widely accepted and well documented, I found some of the reason to post my answer here :-

    doNothing().when(InternalUtils.class); //This is the preferred way
                                           //to mock static void methods.
    InternalUtils.sendEmail(anyString(), anyString(), anyString(), anyString());

Here, I dont understand why we are calling InternalUtils.sendEmail ourself. I will explain in my code why we don't need to do that.

mockStatic(Internalutils.class);

So, we have mocked the class which is fine. Now, lets have a look how we need to verify the sendEmail(/..../) method.

@PrepareForTest({InternalService.InternalUtils.class})
@RunWith(PowerMockRunner.class)
public class InternalServiceTest {

    @Mock
    private InternalService.Order order;

    private InternalService internalService;

    @Before
    public void setup() {
        MockitoAnnotations.initMocks(this);
        internalService = new InternalService();
    }

    @Test
    public void processOrder() throws Exception {

        Mockito.when(order.isSuccessful()).thenReturn(true);
        PowerMockito.mockStatic(InternalService.InternalUtils.class);

        internalService.processOrder(order);

        PowerMockito.verifyStatic(times(1));
        InternalService.InternalUtils.sendEmail(anyString(), any(String[].class), anyString(), anyString());
    }

}

These two lines is where the magic is, First line tells the PowerMockito framework that it needs to verify the class it statically mocked. But which method it need to verify ?? Second line tells which method it needs to verify.

PowerMockito.verifyStatic(times(1));
InternalService.InternalUtils.sendEmail(anyString(), any(String[].class), anyString(), anyString());

This is code of my class, sendEmail api twice.

public class InternalService {

    public void processOrder(Order order) {
        if (order.isSuccessful()) {
            InternalUtils.sendEmail("", new String[1], "", "");
            InternalUtils.sendEmail("", new String[1], "", "");
        }
    }

    public static class InternalUtils{

        public static void sendEmail(String from, String[]  to, String msg, String body){

        }

    }

    public class Order{

        public boolean isSuccessful(){
            return true;
        }

    }

}

As it is calling twice you just need to change the verify(times(2))... that's all.

// max size constraint
CGSize maximumLabelSize = CGSizeMake(184, FLT_MAX)

// font
UIFont *font = [UIFont fontWithName:TRADE_GOTHIC_REGULAR size:20.0f];

// set paragraph style
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping;

// dictionary of attributes
NSDictionary *attributes = @{NSFontAttributeName:font,
                             NSParagraphStyleAttributeName: paragraphStyle.copy};

CGRect textRect = [string boundingRectWithSize: maximumLabelSize
                                     options:NSStringDrawingUsesLineFragmentOrigin
                                  attributes:attributes
                                     context:nil];

CGSize expectedLabelSize = CGSizeMake(ceil(textRect.size.width), ceil(textRect.size.height));

There's a fantastic blogpost that covers this here: Comparing Dates and Datetimes in the Django ORM

The best solution posted for Django>1.7,<1.9 is to register a transform:

from django.db import models

class MySQLDatetimeDate(models.Transform):
    """
    This implements a custom SQL lookup when using `__date` with datetimes.
    To enable filtering on datetimes that fall on a given date, import
    this transform and register it with the DateTimeField.
    """
    lookup_name = 'date'

    def as_sql(self, compiler, connection):
        lhs, params = compiler.compile(self.lhs)
        return 'DATE({})'.format(lhs), params

    @property
    def output_field(self):
        return models.DateField()

Then you can use it in your filters like this:

Foo.objects.filter(created_on__date=date)

EDIT

This solution is definitely back end dependent. From the article:

Of course, this implementation relies on your particular flavor of SQL having a DATE() function. MySQL does. So does SQLite. On the other hand, I haven’t worked with PostgreSQL personally, but some googling leads me to believe that it does not have a DATE() function. So an implementation this simple seems like it will necessarily be somewhat backend-dependent.

I solved this issue with right click on project -> Set as Main Project.

Many of you must be landing here to find a solution for opaque border instead of a transparent one. In that case you can use rgba, where a stands for alpha.

.your_class {
    height: 100px;
    width: 100px;
    margin: 100px;
    border: 10px solid rgba(255,255,255,.5);
}

Demo

Here, you can change the opacity of the border from 0-1

If you simply want a complete transparent border, the best thing to use is transparent, like border: 1px solid transparent;

The sign in such cases (i.e when one or both operands are negative) is implementation-defined. The spec says in §5.6/4 (C++03),

The binary / operator yields the quotient, and the binary % operator yields the remainder from the division of the first expression by the second. If the second operand of / or % is zero the behavior is undefined; otherwise (a/b)*b + a%b is equal to a. If both operands are nonnegative then the remainder is nonnegative; if not, the sign of the remainder is implementation-defined.

That is all the language has to say, as far as C++03 is concerned.

If you push for example image to some API and want the result address(response) back you could do:

import requests
url = 'https://uguu.se/api.php?d=upload-tool'
data = {"name": filename}
files = {'file': open(full_file_path, 'rb')}
response = requests.post(url, data=data, files=files)
current_url = response.text
print(response.text)

is you want fix XSS on input element? you can encode string before output to input field

PHP:

$str = htmlentities($str);

C#:

str = WebUtility.HtmlEncode(str);

after that output value direct to input field:

<input type="text" value="<?php echo $str" />

Have you tried os.mkdir?

You might also try this little code snippet:

mypath = ...
if not os.path.isdir(mypath):
   os.makedirs(mypath)

makedirs creates multiple levels of directories, if needed.

http://www.amk.ca/python/writing/DB-API.html

Be careful when you simply append values of variables to your statements: Imagine a user naming himself ';DROP TABLE Users;' -- That's why you need to use sql escaping, which Python provides for you when you use the cursor.execute in a decent manner. Example in the url is:

cursor.execute("insert into Attendees values (?, ?, ?)", (name,
seminar, paid) )

I faced this issue when I was tring to link a locally created repo with a blank repo on github. Initially I was trying git remote set-url but I had to do git remote add instead.

git remote add origin https://github.com/VijayNew/NewExample.git

import requests

url = requests.get("http://yahoo.com")
htmltext = url.text
print(htmltext)

This will work similar to urllib.urlopen.

Hey You can Use this insted

<iframe width="100%" height="100%" class="absolute inset-0" frameborder="0" title="map" marginheight="0" marginwidth="0" scrolling="no" src="https://maps.google.com/maps?width=100%&amp;height=600&amp;hl=en&amp;q=%C4%B0ikaneir+(Mumma's%20Bakery)&amp;ie=UTF8&amp;t=&amp;z=14&amp;iwloc=B&amp;output=embed" style="filter: scale(100) contrast(1.2) opacity(0.4);"></iframe>

Even though it is about international numbers I would want the code to be like :

/^(\+|\d)[0-9]{7,16}$/;

As you can have international numbers starting with '00' as well.

Why I prefer 15 digits : http://en.wikipedia.org/wiki/E.164

`My vbs file path :

D:\QTP Practice\Driver\Testany.vbs'

objShell = CreateObject("Shell.Application")

objShell.ShellExecute "cmd.exe","/k echo test", "", "runas", 1

set x=createobject("wscript.shell")

wscript.sleep(2000)

x.sendkeys "CD\"&"{ENTER}"&"cd D:"&"{ENTER}"&"cd "&"QTP Practice\Driver"&"{ENTER}"&"Testany.vbs"&"{ENTER}"

--from google search and some tuning, working for me

In a Spring Boot 2 application you can either exclude the service configuration from autoconfiguration:

spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.security.servlet.UserDetailsServiceAutoConfiguration

or if you just want to hide the message in the logs you can simply change the log level:

logging.level.org.springframework.boot.autoconfigure.security=WARN

Further information can be found here: https://docs.spring.io/spring-boot/docs/2.0.x/reference/html/boot-features-security.html

Time 30 minutes later

$newTime = date("Y-m-d H:i:s",strtotime(date("Y-m-d H:i:s")." +30 minutes"))

The inner join will give the result of matched records between two tables where as the cross join gives you the possible combinations between two tables.

You want to use pyplot.grid:

x = numpy.arange(0, 1, 0.05)
y = numpy.power(x, 2)

fig = plt.figure()
ax = fig.gca()
ax.set_xticks(numpy.arange(0, 1, 0.1))
ax.set_yticks(numpy.arange(0, 1., 0.1))
plt.scatter(x, y)
plt.grid()
plt.show()

ax.xaxis.grid and ax.yaxis.grid can control grid lines properties.

You can delete all breakpoints using

del <start_breakpoint_num> - <end_breakpoint_num>

To view the start_breakpoint_num and end_breakpoint_num use:

info break

Maintain a set and remove a randomly picked-up element (with choice) until the list is empty:

s = set(range(1, 6))
import random

while len(s) > 0:
  s.remove(random.choice(list(s)))
  print(s)

Three runs give three different answers:

>>>
set([1, 3, 4, 5])
set([3, 4, 5])
set([3, 4])
set([4])
set([])
>>>
set([1, 2, 3, 5])
set([2, 3, 5])
set([2, 3])
set([2])
set([])

>>>
set([1, 2, 3, 5])
set([1, 2, 3])
set([1, 2])
set([1])
set([])

var numbers = [1,2,3,4,5,10,10, 12, 12, 6,6,6,7,8,8, 8, 8, 8 , 7 , 1 , 1, 2 , 9]

var newArr : [Int] = []
for n in numbers {
    if !newArr.contains(n) {
        newArr.append(n)
    }
}

output - [1, 2, 3, 4, 5, 10, 12, 6, 7, 8, 9]

The above solution maintains order but very slow as .contains iterates again and again. Thus use the ordered set.

This will print the ordered array.

Array(NSOrderedSet.init(array: numbers))

output - [1, 2, 3, 4, 5, 10, 12, 6, 7, 8, 9]

This Will Print an unordered array.

let uniqueUnordered = Array(Set(numbers))

output - [4, 2, 1, 9, 10, 3, 5, 6, 8, 12, 7]

You can find and replace string using delimiters.

var obj = {
  'firstname': 'John',
  'lastname': 'Doe'
}

var text = "My firstname is {firstname} and my lastname is {lastname}"

alert(mutliStringReplace(obj,text))

function mutliStringReplace(object, string) {
      var val = string
      var entries = Object.entries(object);
      entries.forEach((para)=> {
          var find = '{' + para[0] + '}'
          var regExp = new RegExp(find,'g')
       val = val.replace(regExp, para[1])
    })
  return val;
}

I found a simple way to fix that problem. At binding datagridview you've just done: datagridview.DataSource = dataSetName.Tables["TableName"];

If you code like:

datagridview.DataSource = dataSetName;
datagridview.DataMember = "TableName";

the datagridview will never load data again when filtering.

Here are the steps I followed:

1. In bash, check in which directory you are by using the command:

   $ pwd
   

2. copy the URL of the directory you want to go like after using the first command (PWD) I got:

   $  /c/Users/yourUsername
   

3. Now I want to change this to the directory of c drive and folder MyPictures. To do that, I will go the directory of MyPictures, copy the URL, and paste it in the Git bash. However, before that:

   

   C:\MyPicture becomes $ cd /C/MyPicture (backslashes are replaced with slashes)

4. if the folder name is having some spaces like (my program) then you need to enclose it in double quotes like:

   $ cd "C:\Program Files"
   

5. Remember to change directory you just need to copy the requiredUrl and paste that in bash with double-quotes like:

   cd "required URL"
   

Note: URL required with slashes.

Static indexes and small list?

Don't forget that if the list is small and the indexes don't change, as in your example, sometimes the best thing is to use sequence unpacking:

_,a1,a2,_,_,a3,_ = a

The performance is much better and you can also save one line of code:

 %timeit _,a1,b1,_,_,c1,_ = a
10000000 loops, best of 3: 154 ns per loop 
%timeit itemgetter(*b)(a)
1000000 loops, best of 3: 753 ns per loop
 %timeit [ a[i] for i in b]
1000000 loops, best of 3: 777 ns per loop
 %timeit map(a.__getitem__, b)
1000000 loops, best of 3: 1.42 µs per loop

str_replace('"', "", $string);
str_replace("'", "", $string);

I assume you mean quotation marks?

Otherwise, go for some regex, this will work for html quotes for example:

preg_replace("/<!--.*?-->/", "", $string);

C-style quotes:

preg_replace("/\/\/.*?\n/", "\n", $string);

CSS-style quotes:

preg_replace("/\/*.*?\*\//", "", $string);

bash-style quotes:

preg-replace("/#.*?\n/", "\n", $string);

Etc etc...

Mount the certs onto the Docker container using -v:

docker run -v /host/path/to/certs:/container/path/to/certs -d IMAGE_ID "update-ca-certificates"

Check out XML2 from http://www.ofb.net/~egnor/xml2/ which converts XML to a line-oriented format.

From reading the socket.io source code it looks like the "listen" method takes arguments (server, options, fn) and if "server" is an instance of an HTTP/S server it will simply wrap it for you.

So you could presumably give it an empty server which listens for the 'connection' event and handles the socket remoteAddress; however, things might be very difficult if you need to associate that address with an actual socket.io Socket object.

var http = require('http')
  , io = require('socket.io');
io.listen(new http.Server().on('connection', function(sock) {
  console.log('Client connected from: ' + sock.remoteAddress);
}).listen(80));

Might be easier to submit a patch to socket.io wherein their own Socket object is extended with the remoteAddress property assigned at connection time...

I like to add this method, if you are using an edit form, you can use this code to save the changes in your update(Request $request, $id) function:

$post = Post::find($id);    
$post->fill($request->input())->save();

keep in mind that you have to name your inputs with the same column name. The fill() function will do all the work for you :)

Very nice solutions. Here are some more.

int length ( String s )
{
     int length = 0 ;
     // iterate through all possible code points
     for ( int i = INTEGER . MIN_VALUE ; i <= INTEGER . MAX_VALUE ; i ++ ) 
     {
           // count the number of i's in the string
          for ( int next = s . indexOf ( i , next ) + 1 ; next != -1 ; next = s . indexOf ( i , next ) + 1 )
          {
               length ++ ;
          }
     }
     return ( length ) ;
}

Here is a recursive version:

int length ( String s )
{
     int length = 0 ;
     search :
     for ( int i = Integer . MIN_VALUE ; i <= Integer . MAX_VALUE ; i ++ )
     {
          final int k = s . indexOf ( i ) ;
          if ( k != -1 )
          {
               length = length ( s . substring ( 0 , k ) ) + length ( s . substring ( k ) ) ;
               break search ;
          }
     }
     return ( length ) ;
}

And still more

int length ( String s )
{
     int length ;
     search ;
     for ( length = 0 ; true ; length ++ )
     {
          int [ ] codePoints = new int [ length ] ;
          for ( each possible value of codePoints from {MIN_VALUE,MIN_VALUE,...} to {MAX_VALUE,MAX_VALUE,...} )
          {
               if ( new String ( codePoints ) . equals ( s ) ) { break search ; }
          }
     }
}

How could I forget one that actually works in a reasonable time? (String#length is still preferred.)

int length ( String s )
{
     String t = s . replaceAll ( "." , "A" ) ;
     int length ;
     String r = "" ;
     search :
     for ( r = "" , length = 0 ; true ; r += "A" , length ++ )
          {
               if ( r . equals ( t ) )
               {
                    break search ;
               }
          }
     return ( length ) ;
}

Try the following regex:

var removedText = self.val().replace(/[^0-9]/, '');

This will match every character that is not (^) in the interval 0-9.

Demo.

From the documentation on expandtab:

To insert a real tab when expandtab is on, use CTRL-V<Tab>. See also :retab and ins-expandtab.
This option is reset when the paste option is set and restored when the paste option is reset.

So if you have a mapping for toggling the paste option, e.g.

set pastetoggle=<F2>

you could also do <F2>Tab<F2>.

Seems to happen with some themes (cupertino/theme.css) in my case.

And the problem is the .ui-helper-hidden-accessible class which have clip property, like previous users said.

Just Overwrite it and it will be fine

$(document).ready(function() {
    $("#datePicker").datepicker({ dateFormat: "yy-m-d" });
    $('#ui-datepicker-div').css('clip', 'auto');
});

To randomly select 20 rows I think you'd be better off selecting the lot of them randomly ordered and selecting the first 20 of that set.

Something like:

Select *
  from (select *
          from table
         order by dbms_random.value) -- you can also use DBMS_RANDOM.RANDOM
 where rownum < 21;

Best used for small tables to avoid selecting large chunks of data only to discard most of it.

For scanf, you need to use %hu since you're passing a pointer to an unsigned short. For printf, it's impossible to pass an unsigned short due to default promotions (it will be promoted to int or unsigned int depending on whether int has at least as many value bits as unsigned short or not) so %d or %u is fine. You're free to use %hu if you prefer, though.

For Python, I haven't found an OpenCV function that provides contrast. As others have suggested, there are some techniques to automatically increase contrast using a very simple formula.

In the official OpenCV docs, it is suggested that this equation can be used to apply both contrast and brightness at the same time:

new_img = alpha*old_img + beta

where alpha corresponds to a contrast and beta is brightness. Different cases

alpha 1  beta 0      --> no change  
0 < alpha < 1        --> lower contrast  
alpha > 1            --> higher contrast  
-127 < beta < +127   --> good range for brightness values

In C/C++, you can implement this equation using cv::Mat::convertTo, but we don't have access to that part of the library from Python. To do it in Python, I would recommend using the cv::addWeighted function, because it is quick and it automatically forces the output to be in the range 0 to 255 (e.g. for a 24 bit color image, 8 bits per channel). You could also use convertScaleAbs as suggested by @nathancy.

import cv2
img = cv2.imread('input.png')
# call addWeighted function. use beta = 0 to effectively only operate one one image
out = cv2.addWeighted( img, contrast, img, 0, brightness)
output = cv2.addWeighted

The above formula and code is quick to write and will make changes to brightness and contrast. But they yield results that are significantly different than photo editing programs. The rest of this answer will yield a result that will reproduce the behavior in the GIMP and also LibreOffice brightness and contrast. It's more lines of code, but it gives a nice result.

Contrast

In the GIMP, contrast levels go from -127 to +127. I adapted the formulas from here to fit in that range.

f = 131*(contrast + 127)/(127*(131-contrast))
new_image = f*(old_image - 127) + 127 = f*(old_image) + 127*(1-f)

To figure out brightness, I figured out the relationship between brightness and levels and used information in this levels post to arrive at a solution.

#pseudo code
if brightness > 0
    shadow = brightness
    highlight = 255
else:
    shadow = 0
    highlight = 255 + brightness
new_img = ((highlight - shadow)/255)*old_img + shadow

brightness and contrast in Python and OpenCV

Putting it all together and adding using the reference "mandrill" image from USC SIPI:

import cv2
import numpy as np

# Open a typical 24 bit color image. For this kind of image there are
# 8 bits (0 to 255) per color channel
img = cv2.imread('mandrill.png')  # mandrill reference image from USC SIPI

s = 128
img = cv2.resize(img, (s,s), 0, 0, cv2.INTER_AREA)

def apply_brightness_contrast(input_img, brightness = 0, contrast = 0):
    
    if brightness != 0:
        if brightness > 0:
            shadow = brightness
            highlight = 255
        else:
            shadow = 0
            highlight = 255 + brightness
        alpha_b = (highlight - shadow)/255
        gamma_b = shadow
        
        buf = cv2.addWeighted(input_img, alpha_b, input_img, 0, gamma_b)
    else:
        buf = input_img.copy()
    
    if contrast != 0:
        f = 131*(contrast + 127)/(127*(131-contrast))
        alpha_c = f
        gamma_c = 127*(1-f)
        
        buf = cv2.addWeighted(buf, alpha_c, buf, 0, gamma_c)

    return buf


font = cv2.FONT_HERSHEY_SIMPLEX
fcolor = (0,0,0)

blist = [0, -127, 127,   0,  0, 64] # list of brightness values
clist = [0,    0,   0, -64, 64, 64] # list of contrast values


out = np.zeros((s*2, s*3, 3), dtype = np.uint8)

for i, b in enumerate(blist):
    c = clist[i]
    print('b, c:  ', b,', ',c)
    row = s*int(i/3)
    col = s*(i%3)
    
    print('row, col:   ', row, ', ', col)
    
    out[row:row+s, col:col+s] = apply_brightness_contrast(img, b, c)
    msg = 'b %d' % b
    cv2.putText(out,msg,(col,row+s-22), font, .7, fcolor,1,cv2.LINE_AA)
    msg = 'c %d' % c
    cv2.putText(out,msg,(col,row+s-4), font, .7, fcolor,1,cv2.LINE_AA)
    
    cv2.putText(out, 'OpenCV',(260,30), font, 1.0, fcolor,2,cv2.LINE_AA)

cv2.imwrite('out.png', out)

I manually processed the images in the GIMP and added text tags in Python/OpenCV:

Note: @UtkarshBhardwaj has suggested that Python 2.x users must cast the contrast correction calculation code into float for getting floating result, like so:

...
if contrast != 0:
        f = float(131*(contrast + 127))/(127*(131-contrast))
...

You can try with textContent.

var productId = val[key].textContent;

From Bootstrap's docs about the remote option;

This option is deprecated since v3.3.0 and has been removed in v4. We recommend instead using client-side templating or a data binding framework, or calling jQuery.load yourself.

If a remote URL is provided, content will be loaded one time via jQuery's load method and injected into the .modal-content div. If you're using the data-api, you may alternatively use the href attribute to specify the remote source. An example of this is shown below:

<a data-toggle="modal" href="remote.html" data-target="#modal">Click me</a>

That's the .modal-content div, not .modal-body. If you want to put content inside .modal-body then you need to do that with custom javascript.

So I would call jQuery.load programmatically, meaning you can keep the functionality of the dismiss and/or other buttons as required.

To do this you could use a data tag with the URL from the button that opens the modal, and use the show.bs.modal event to load content into the .modal-body div.

HTML Link/Button

<a href="#" data-toggle="modal" data-load-url="remote.html" data-target="#myModal">Click me</a>

jQuery

$('#myModal').on('show.bs.modal', function (e) {
    var loadurl = $(e.relatedTarget).data('load-url');
    $(this).find('.modal-body').load(loadurl);
});

I wanted a splash screen that would display until the main program form was ready to be displayed, so timers etc were no use to me. I also wanted to keep it as simple as possible. My application starts with (abbreviated):

static void Main()
{
    Splash frmSplash = new Splash();
    frmSplash.Show();
    Application.Run(new ReportExplorer(frmSplash));
}

Then, ReportExplorer has the following:

public ReportExplorer(Splash frmSplash)
{
    this.frmSplash = frmSplash;
    InitializeComponent();
}

Finally, after all the initialisation is complete:

if (frmSplash != null) 
{
     frmSplash.Close();
     frmSplash = null;
}

Maybe I'm missing something, but this seems a lot easier than mucking about with threads and timers.

This regular expression

^\w+(\s\w+)*$

will only allow a single space between words and no leading or trailing spaces.

Below is the explanation of the regular expression:

1. ^ Assert position at start of the string
2. \w+ Match any word character [a-zA-Z0-9_]
   1. Quantifier: + Between one and unlimited times, as many times as possible, giving back as needed [greedy]
3. 1st Capturing group (\s\w+)*
   1. Quantifier: * Between zero and unlimited times, as many times as possible, giving back as needed [greedy]
   2. \s Match any white space character [\r\n\t\f ]
   3. \w+ Match any word character [a-zA-Z0-9_]
      1. Quantifier: + Between one and unlimited times, as many times as possible, giving back as needed [greedy]
4. $ Assert position at end of the string

Get Current DateTime

Now.ToShortDateString()
DateTime.Now
Today.Now

Gradle looks for gradle.properties files in these places:

• in project build dir (that is where your build script is)
• in sub-project dir
• in gradle user home (defined by the GRADLE_USER_HOME environment variable, which if not set defaults to USER_HOME/.gradle)

Properties from one file will override the properties from the previous ones (so file in gradle user home has precedence over the others, and file in sub-project has precedence over the one in project root).

Reference: https://gradle.org/docs/current/userguide/build_environment.html

1. in your sample code you must remove the brackets, because it's not a functional assignment; also for documentary reasons I would suggest you use the := notation (see code sample below)

   2. Application.Thisworkbook refers to the book containing the VBA code, not necessarily the book containing the data, so be cautious.

Express the sheet you're working on as a sheet object and pass it, together with a logical variable to the following sub:

Sub SetProtectionMode(MySheet As Worksheet, ProtectionMode As Boolean)

    If ProtectionMode Then
        MySheet.Protect DrawingObjects:=True, Contents:=True, _
                        AllowSorting:=True, AllowFiltering:=True
    Else
        MySheet.Unprotect
    End If
End Sub

Within the .Protect method you can define what you want to allow/disallow. This code block will switch protection on/off - without password in this example, you can add it as a parameter or hardcoded within the Sub. Anyway somewhere the PW will be hardcoded. If you don't want this, just call the Protection Dialog window and let the user decide what to do:

Application.Dialogs(xlDialogProtectDocument).Show

Hope that helps

Good luck - MikeD

def hammingWeight(n):
    count = 0
    while n:
        if n&1:
            count += 1
        n >>= 1
    return count

I have edited the "Best answer" code, though I found a useful thing that was missing. This is will also track the ip of a user if they are using a Proxy or simply if the server has nginx installed as a proxy reverser.

I added this code to his script at the top of the function:

function getRealIpAddr()
{
    if (!empty($_SERVER['HTTP_CLIENT_IP']))   //check ip from share internet
    {
      $ip=$_SERVER['HTTP_CLIENT_IP'];
    }
    elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))   //to check ip is pass from proxy
    {
      $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
    }
    else
    {
      $ip=$_SERVER['REMOTE_ADDR'];
    }
    return $ip;
}
$adresseip = getRealIpAddr();

Afther that I edited his code.

Find the line that says the following:

// get the user name if it is logged, or the visitors IP (and add the identifier)

    $uvon = isset($_SESSION['nume']) ? $_SESSION['nume'] : $_SERVER['SERVER_ADDR']. $vst_id;

and replace it with this:

$uvon = isset($_SESSION['nume']) ? $_SESSION['nume'] : $adresseip. $vst_id;

This will work.

Here is the full code if anything happens:

<?php

function getRealIpAddr()
{
    if (!empty($_SERVER['HTTP_CLIENT_IP']))   //check ip from share internet
    {
      $ip=$_SERVER['HTTP_CLIENT_IP'];
    }
    elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))   //to check ip is pass from proxy
    {
      $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
    }
    else
    {
      $ip=$_SERVER['REMOTE_ADDR'];
    }
    return $ip;
}
$adresseip = getRealIpAddr();

// Script Online Users and Visitors - http://coursesweb.net/php-mysql/
if(!isset($_SESSION)) session_start();        // start Session, if not already started

$filetxt = 'userson.txt';  // the file in which the online users /visitors are stored
$timeon = 120;             // number of secconds to keep a user online
$sep = '^^';               // characters used to separate the user name and date-time
$vst_id = '-vst-';        // an identifier to know that it is a visitor, not logged user

/*
 If you have an user registration script,
 replace $_SESSION['nume'] with the variable in which the user name is stored.
 You can get a free registration script from:  http://coursesweb.net/php-mysql/register-login-script-users-online_s2
*/

// get the user name if it is logged, or the visitors IP (and add the identifier)

    $uvon = isset($_SESSION['nume']) ? $_SESSION['nume'] : $_SERVER['SERVER_ADDR']. $vst_id;

$rgxvst = '/^([0-9\.]*)'. $vst_id. '/i';         // regexp to recognize the line with visitors
$nrvst = 0;                                       // to store the number of visitors

// sets the row with the current user /visitor that must be added in $filetxt (and current timestamp)

    $addrow[] = $uvon. $sep. time();

// check if the file from $filetxt exists and is writable

    if(is_writable($filetxt)) {
      // get into an array the lines added in $filetxt
      $ar_rows = file($filetxt, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
      $nrrows = count($ar_rows);

            // number of rows

  // if there is at least one line, parse the $ar_rows array

      if($nrrows>0) {
        for($i=0; $i<$nrrows; $i++) {
          // get each line and separate the user /visitor and the timestamp
          $ar_line = explode($sep, $ar_rows[$i]);
      // add in $addrow array the records in last $timeon seconds
          if($ar_line[0]!=$uvon && (intval($ar_line[1])+$timeon)>=time()) {
            $addrow[] = $ar_rows[$i];
          }
        }
      }
    }

$nruvon = count($addrow);                   // total online
$usron = '';                                    // to store the name of logged users
// traverse $addrow to get the number of visitors and users
for($i=0; $i<$nruvon; $i++) {
 if(preg_match($rgxvst, $addrow[$i])) $nrvst++;       // increment the visitors
 else {
   // gets and stores the user's name
   $ar_usron = explode($sep, $addrow[$i]);
   $usron .= '<br/> - <i>'. $ar_usron[0]. '</i>';
 }
}
$nrusr = $nruvon - $nrvst;              // gets the users (total - visitors)

// the HTML code with data to be displayed
$reout = '<div id="uvon"><h4>Online: '. $nruvon. '</h4>Visitors: '. $nrvst. '<br/>Users: '. $nrusr. $usron. '</div>';

// write data in $filetxt
if(!file_put_contents($filetxt, implode("\n", $addrow))) $reout = 'Error: Recording file not exists, or is not writable';

// if access from <script>, with GET 'uvon=showon', adds the string to return into a JS statement
// in this way the script can also be included in .html files
if(isset($_GET['uvon']) && $_GET['uvon']=='showon') $reout = "document.write('$reout');";

echo $reout;             // output /display the result

Haven't tested this on the Sql script yet.

Just improved phihag's code because it runs into a infinite loop if file not exists.

<?php

$filename = "so-csv.csv";

echo "<html><body><table>\n\n";

if (file_exists($filename)) {
$f = fopen($filename, "r");
while (($line = fgetcsv($f)) !== false) {
        echo "<tr>";
        foreach ($line as $cell) {
                echo "<td>" . htmlspecialchars($cell) . "</td>";
        }
        echo "</tr>\n";
}
fclose($f);
}

else{ echo "<tr><td>No file exists ! </td></tr>" ;}
echo "\n</table></body></html>";
?>

You'll see this in all the directives:

When you use brackets, it means you're passing a bindable property (a variable).

  <a [routerLink]="routerLinkVariable"></a>

So this variable (routerLinkVariable) could be defined inside your class and it should have a value like below:

export class myComponent {

    public routerLinkVariable = "/home"; // the value of the variable is string!

But with variables, you have the opportunity to make it dynamic right?

export class myComponent {

    public routerLinkVariable = "/home"; // the value of the variable is string!


    updateRouterLinkVariable(){

        this.routerLinkVariable = '/about';
    }

Where as without brackets you're passing string only and you can't change it, it's hard coded and it'll be like that throughout your app.

<a routerLink="/home"></a>

UPDATE :

The other speciality about using brackets specifically for routerLink is that you can pass dynamic parameters to the link you're navigating to:

So adding a new variable

export class myComponent {
        private dynamicParameter = '129';
        public routerLinkVariable = "/home"; 

Updating the [routerLink]

  <a [routerLink]="[routerLinkVariable,dynamicParameter]"></a>

When you want to click on this link, it would become:

  <a href="/home/129"></a>

1. Use strtotime to convert the string to a time stamp
2. Add a day to it (eg: by adding 86400 seconds (24 * 60 * 60))

eg:

$time = strtotime($myInput);
$newTime = $time + 86400;

If it's only adding 1 day, then using strtotime again is probably overkill.

EDIT

Recent activity on this question caused me to look back and change my solution to a quick one-liner using a generator:

rev = ''.join([text[len(text) - count] for count in xrange(1,len(text)+1)])

Although obviously there are some better answers here like a negative step in the range or xrange function. The following is my original solution:

Here is my solution, I'll explain it step by step

def reverse(text):

    lst = []
    count = 1

    for i in range(0,len(text)):

        lst.append(text[len(text)-count])
        count += 1

    lst = ''.join(lst)
    return lst

print reverse('hello')

First, we have to pass a parameter to the function, in this case text.

Next, I set an empty list, named lst to use later. (I actually didn't know I'd need the list until I got to the for loop, you'll see why it's necessary in a second.)

The count variable will make sense once I get into the for loop

So let's take a look at a basic version of what we are trying to accomplish:

It makes sense that appending the last character to the list would start the reverse order. For example:

>>lst = []
>>word = 'foo'
>>lst.append(word[2])
>>print lst
['o']

But in order to continue reversing the order, we need to then append word[1] and then word[0]:

>>lst.append(word[2])
>>lst.append(word[1])
>>lst.append(word[0])
>>print lst
['o','o','f']

This is great, we now have a list that has our original word in reverse order and it can be converted back into a string by using .join(). But there's a problem. This works for the word foo, it even works for any word that has a length of 3 characters. But what about a word with 5 characters? Or 10 characters? Now it won't work. What if there was a way we could dynamically change the index we append so that any word will be returned in reverse order?

Enter for loop.

for i in range(0,len(text)):

    lst.append(text[len(text)-count])
    count += 1

First off, it is necessary to use in range() rather than just in, because we need to iterate through the characters in the word, but we also need to pull the index value of the word so that we change the order.

The first part of the body of our for loop should look familiar. Its very similar to

>>lst.append(word[..index..])

In fact, the base concept of it is exactly the same:

>>lst.append(text[..index..])

So what's all the stuff in the middle doing?

Well, we need to first append the index of the last letter to our list, which is the length of the word, text, -1. From now on we'll refer to it as l(t) -1

>>lst.append(text[len(text)-1])

That alone will always get the last letter of our word, and append it to lst, regardless of the length of the word. But now that we have the last letter, which is l(t) - 1, we need the second to last letter, which is l(t) - 2, and so on, until there are no more characters to append to the list. Remember our count variable from above? That will come in handy. By using a for loop, we can increment the value of count by 1 through each iteration, so that the value we subtract by increases, until the for loop has iterated through the entire word:

>>for i in range(0,len(text)):
..        
..      lst.append(text[len(text)-count])
..      count += 1

Now that we have the heart of our function, let's look at what we have so far:

def reverse(text):

    lst = []
    count = 1

    for i in range(0,len(text)):

        lst.append(text[len(text)-count])
        count += 1

We're almost done! Right now, if we were to call our function with the word 'hello', we would get a list that looks like:

['o','l','l','e','h']

We don't want a list, we want a string. We can use .join for that:

def reverse(text):

    lst = []
    count = 1

    for i in range(0,len(text)):

        lst.append(text[len(text)-count])
        count += 1

    lst = ''.join(lst) # join the letters together without a space
    return lst

And that's it. If we call the word 'hello' on reverse(), we'd get this:

>>print reverse('hello')
olleh

Obviously, this is way more code than is necessary in a real life situation. Using the reversed function or extended slice would be the optimal way to accomplish this task, but maybe there is some instance when it would not work, and you would need this. Either way, I figured I'd share it for anyone who would be interested.

If you guys have any other ideas, I'd love to hear them!

You can read JNE/Z as *

Jump if the status is "Not set" on Equal/Zero flag

"Not set" is a status when "equal/zero flag" in the CPU is set to 0 which only happens when the condition is met or equally matched.

    Use this:

    $stmt = $user->runQuery("SELECT * FROM tbl WHERE ID=:id");
    $stmt->bindparam(":id",$id);
    $stmt->execute();

        $stmt->bindColumn("a_b",$xx);
        $stmt->bindColumn("c_d",$yy);


    while($rows = $stmt->fetch(PDO::FETCH_BOUND))
    {
        //---insert into new tble
    }   

public String removeLastCharacter(String str){
       String result = null;
        if ((str != null) && (str.length() > 0)) {
          return str.substring(0, str.length() - 1);
        }
        else{
            return "";
        }

}

Your sample code won't work as shown because you forgot to include a Console.ReadLine() before the serviceHost.Close() line. That means the host is opened and then immediately closed.

Other than that, it seems you have a permission problem on your machine. Ensure you are logged-in as an administrator account on your machine. If you are an administrator then it may be that you don't have the World Wide Web Publishing Service (W3SVC) running to handle HTTP requests.

What does the “at” (@) symbol do in Python?

In short, it is used in decorator syntax and for matrix multiplication.

In the context of decorators, this syntax:

@decorator
def decorated_function():
    """this function is decorated"""

is equivalent to this:

def decorated_function():
    """this function is decorated"""

decorated_function = decorator(decorated_function)

In the context of matrix multiplication, a @ b invokes a.__matmul__(b) - making this syntax:

a @ b

equivalent to

dot(a, b)

and

a @= b

equivalent to

a = dot(a, b)

where dot is, for example, the numpy matrix multiplication function and a and b are matrices.

How could you discover this on your own?

I also do not know what to search for as searching Python docs or Google does not return relevant results when the @ symbol is included.

If you want to have a rather complete view of what a particular piece of python syntax does, look directly at the grammar file. For the Python 3 branch:

~$ grep -C 1 "@" cpython/Grammar/Grammar 

decorator: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE
decorators: decorator+
--
testlist_star_expr: (test|star_expr) (',' (test|star_expr))* [',']
augassign: ('+=' | '-=' | '*=' | '@=' | '/=' | '%=' | '&=' | '|=' | '^=' |
            '<<=' | '>>=' | '**=' | '//=')
--
arith_expr: term (('+'|'-') term)*
term: factor (('*'|'@'|'/'|'%'|'//') factor)*
factor: ('+'|'-'|'~') factor | power

We can see here that @ is used in three contexts:

• decorators
• an operator between factors
• an augmented assignment operator

Decorator Syntax:

A google search for "decorator python docs" gives as one of the top results, the "Compound Statements" section of the "Python Language Reference." Scrolling down to the section on function definitions, which we can find by searching for the word, "decorator", we see that... there's a lot to read. But the word, "decorator" is a link to the glossary, which tells us:

decorator

A function returning another function, usually applied as a function transformation using the @wrapper syntax. Common examples for decorators are classmethod() and staticmethod().

The decorator syntax is merely syntactic sugar, the following two function definitions are semantically equivalent:

def f(...):
    ...
f = staticmethod(f)

@staticmethod
def f(...):
    ...

The same concept exists for classes, but is less commonly used there. See the documentation for function definitions and class definitions for more about decorators.

So, we see that

@foo
def bar():
    pass

is semantically the same as:

def bar():
    pass

bar = foo(bar)

They are not exactly the same because Python evaluates the foo expression (which could be a dotted lookup and a function call) before bar with the decorator (@) syntax, but evaluates the foo expression after bar in the other case.

_{(If this difference makes a difference in the meaning of your code, you should reconsider what you're doing with your life, because that would be pathological.)}

Stacked Decorators

If we go back to the function definition syntax documentation, we see:

@f1(arg)
@f2
def func(): pass

is roughly equivalent to

def func(): pass
func = f1(arg)(f2(func))

This is a demonstration that we can call a function that's a decorator first, as well as stack decorators. Functions, in Python, are first class objects - which means you can pass a function as an argument to another function, and return functions. Decorators do both of these things.

If we stack decorators, the function, as defined, gets passed first to the decorator immediately above it, then the next, and so on.

That about sums up the usage for @ in the context of decorators.

The Operator, @

In the lexical analysis section of the language reference, we have a section on operators, which includes @, which makes it also an operator:

The following tokens are operators:

+       -       *       **      /       //      %      @
<<      >>      &       |       ^       ~
<       >       <=      >=      ==      !=

and in the next page, the Data Model, we have the section Emulating Numeric Types,

object.__add__(self, other)
object.__sub__(self, other) 
object.__mul__(self, other) 
object.__matmul__(self, other) 
object.__truediv__(self, other) 
object.__floordiv__(self, other)

[...] These methods are called to implement the binary arithmetic operations (+, -, *, @, /, //, [...]

And we see that __matmul__ corresponds to @. If we search the documentation for "matmul" we get a link to What's new in Python 3.5 with "matmul" under a heading "PEP 465 - A dedicated infix operator for matrix multiplication".

it can be implemented by defining __matmul__(), __rmatmul__(), and __imatmul__() for regular, reflected, and in-place matrix multiplication.

(So now we learn that @= is the in-place version). It further explains:

Matrix multiplication is a notably common operation in many fields of mathematics, science, engineering, and the addition of @ allows writing cleaner code:

S = (H @ beta - r).T @ inv(H @ V @ H.T) @ (H @ beta - r)

instead of:

S = dot((dot(H, beta) - r).T,
        dot(inv(dot(dot(H, V), H.T)), dot(H, beta) - r))

While this operator can be overloaded to do almost anything, in numpy, for example, we would use this syntax to calculate the inner and outer product of arrays and matrices:

>>> from numpy import array, matrix
>>> array([[1,2,3]]).T @ array([[1,2,3]])
array([[1, 2, 3],
       [2, 4, 6],
       [3, 6, 9]])
>>> array([[1,2,3]]) @ array([[1,2,3]]).T
array([[14]])
>>> matrix([1,2,3]).T @ matrix([1,2,3])
matrix([[1, 2, 3],
        [2, 4, 6],
        [3, 6, 9]])
>>> matrix([1,2,3]) @ matrix([1,2,3]).T
matrix([[14]])

Inplace matrix multiplication: @=

While researching the prior usage, we learn that there is also the inplace matrix multiplication. If we attempt to use it, we may find it is not yet implemented for numpy:

>>> m = matrix([1,2,3])
>>> m @= m.T
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: In-place matrix multiplication is not (yet) supported. Use 'a = a @ b' instead of 'a @= b'.

When it is implemented, I would expect the result to look like this:

>>> m = matrix([1,2,3])
>>> m @= m.T
>>> m
matrix([[14]])

Latest gradle

Download the latest gradle-3.3-all.zip from

http://gradle.org/gradle-download/

1.download from Complete Distribution link

2.open in android studio file ->settings ->gradle

3.open the path and paste the downloaded zip folder gradle-3.3 in that folder

4.change your gradle 2.8 to gradle 3.3 in file ->settings ->gradle

5.Or you can change your gradle wrapper in the project

6.edit YourProject\gradle\wrapper\gradle-wrapper.properties file and edit the field distributionUrl in to

distributionUrl= https://services.gradle.org/distributions/gradle-3.0-all.zip

shown in android studio's gradle files

On linux distributions (@least on Debian with plasma) the default shortcut is

Ctrl + 0

My solution is:

const urlSplit = this._router.url.split('/');
this._router.navigate([urlSplit.splice(0, urlSplit.length - 1).join('/')], { relativeTo: this._route.parent });

And the Router injection:

private readonly _router: Router

A quick summary of the concepts:

• Hugging => content does not want to grow
• Compression Resistance => content does not want to shrink

Example:

Say you've got a button like this:

[       Click Me      ]

and you've pinned the edges to a larger superview with priority 500.

Then, if Hugging priority > 500 it'll look like this:

[Click Me]

If Hugging priority < 500 it'll look like this:

[       Click Me      ]

If the superview now shrinks then, if the Compression Resistance priority > 500, it'll look like this

[Click Me]

Else if Compression Resistance priority < 500, it could look like this:

[Cli..]

If it doesn't work like this then you've probably got some other constraints going on that are messing up your good work!

E.g. you could have it pinned to the superview with priority 1000. Or you could have a width priority. If so, this can be helpful:

Editor > Size to Fit Content

Using the standard ctypes library, this should yield the current on screen mouse coordinates without any third party modules:

from ctypes import windll, Structure, c_long, byref


class POINT(Structure):
    _fields_ = [("x", c_long), ("y", c_long)]



def queryMousePosition():
    pt = POINT()
    windll.user32.GetCursorPos(byref(pt))
    return { "x": pt.x, "y": pt.y}


pos = queryMousePosition()
print(pos)

I should mention that this code was taken from an example found here So credit goes to Nullege.com for this solution.

I prefer this as an extension method:

public static async Task<IEnumerable<T>> WhenAll<T>(this IEnumerable<Task<T>> tasks)
{
    return await Task.WhenAll(tasks);
}

So that it is usable with method chaining:

var inputs = await events
  .Select(async ev => await ProcessEventAsync(ev))
  .WhenAll()

If you have a List, you can use .Contains(yourObject), if you're just looking for it existing (like a where). Otherwise look at Linq .Any() extension method.

1. Add using

using System.ComponentModel;

2. Declare Background Worker:

private readonly BackgroundWorker worker = new BackgroundWorker();

3. Subscribe to events:

worker.DoWork += worker_DoWork;
worker.RunWorkerCompleted += worker_RunWorkerCompleted;

4. Implement two methods:

private void worker_DoWork(object sender, DoWorkEventArgs e)
{
  // run all background tasks here
}

private void worker_RunWorkerCompleted(object sender, 
                                           RunWorkerCompletedEventArgs e)
{
  //update ui once worker complete his work
}

5. Run worker async whenever your need.

worker.RunWorkerAsync();

6. Track progress (optional, but often useful)

   a) subscribe to ProgressChanged event and use ReportProgress(Int32) in DoWork

   b) set worker.WorkerReportsProgress = true; (credits to @zagy)

Most likely, as mentioned by others, it is a class carrying the css values:

.clear{clear: both;} 

in order to prevent any more page elements from extending into the footer element. It is a quick and easy way of making sure that pages with columns of varying heights don't cause the footer to render oddly, by possibly setting its top position at the end of a shorter column.

In many cases it is not necessary, but if you are using best-practice standards it is a good idea to use, if you are floating page elements left and right. It functions with page elements similar to the way a horizontal rule works with text, to ensure proper and complete sepperation.

RFC 3066 gives the details of the allowed values (emphasis and links added):

All 2-letter subtags are interpreted as ISO 3166 alpha-2 country codes from [ISO 3166], or subsequently assigned by the ISO 3166 maintenance agency or governing standardization bodies, denoting the area to which this language variant relates.

I interpret that as meaning any valid (according to ISO 3166) 2-letter code is valid as a subtag. The RFC goes on to state:

Tags with second subtags of 3 to 8 letters may be registered with IANA, according to the rules in chapter 5 of this document.

By the way, that looks like a typo, since chapter 3 seems to relate to the the registration process, not chapter 5.

A quick search for the IANA registry reveals a very long list, of all the available language subtags. Here's one example from the list (which would be used as en-scouse):

Type: variant

Subtag: scouse

Description: Scouse

Added: 2006-09-18

Prefix: en

Comments: English Liverpudlian dialect known as 'Scouse'

There are all sorts of subtags available; a quick scroll has already revealed fr-1694acad (17th century French).

The usefulness of some of these (I would say the vast majority of these) tags, when it comes to documents designed for display in the browser, is limited. The W3C Internationalization specification simply states:

Browsers and other applications can use information about the language of content to deliver to users the most appropriate information, or to present information to users in the most appropriate way. The more content is tagged and tagged correctly, the more useful and pervasive such applications will become.

I'm struggling to find detailed information on how browsers behave when encountering different language tags, but they are most likely going to offer some benefit to those users who use a screen reader, which can use the tag to determine the language/dialect/accent in which to present the content.

A tuple consists of a number of values separated by commas. like

>>> t = 12345, 54321, 'hello!'
>>> t[0]
12345

tuple are index based (and also immutable) in Python.

Here in this case x = rows[1][1] + " " + rows[1][2] have only two index 0, 1 available but you are trying to access the 3rd index.

a little bit code from my side (custom function for Array):

    Array.prototype.in_array = function (array) {
        var $i = 0;
        var type = typeof array;
        while (this[$i]) {
            if ((type == ('number') || type == ('string'))  && array == this[$i]) {
                return true;
            } else if (type == 'object' && array instanceof Array && array.in_array(this[$i])) {
                return true
            }
            $i++;
        }
        return false;
    };


    var array = [1, 2, 3, "a", "b", "c"];

    //if string in array
    if (array.in_array('b')) {
        console.log("in array");
    }

    //if number in array
    if (array.in_array(3)) {
        console.log("in array");
    }

    // if one from array in array
    if (array.in_array([1, 'b'])) {
        console.log("in array");
    }

You can set the value property using client script after the element is created:

<input type="text" id="fee" />

<script type="text/javascript>
document.getElementById('fee').value = '1000';
</script>

IFNULL, see here: http://www.sqlite.org/lang_corefunc.html#ifnull

no brackets around the function

Sometimes you can encounter an issue with intermediate RPM archive:

cpio: Malformed number
cpio: Malformed number
cpio: Malformed number
. . .
cpio: premature end of archive

That means it could be packed, these days it is LZMA2 compression as usual, by xz:

rpm2cpio <file>.rpm | xz -d | cpio -idmv

otherwise you could try:

rpm2cpio <file>.rpm | lzma -d | cpio -idmv

The easisest way to get a posted json string, for example, is to read the contents of 'php://input' and then decode it. For example i had a simple Zend route:

'save-json' => array(
'type' => 'Zend\Mvc\Router\Http\Segment',
            'options' => array(
                'route'    => '/save-json/',
                'defaults' => array(
                    'controller' => 'CDB\Controller\Index',
                    'action'     => 'save-json',
                ),
            ),
        ),

and i wanted to post data to it using Angular's $http.post. The post was fine but the retrive method in Zend

$this->params()->fromPost('paramname'); 

didn't get anything in this case. So my solution was, after trying all kinds of methods like $_POST and the other methods stated above, to read from 'php://':

$content = file_get_contents('php://input');
print_r(json_decode($content));

I got my json array in the end. Hope this helps.

Try using the WHERE clause:

SELECT column1 FROM table WHERE Isnumeric(column1);

Try installing mod_ssl using following command:

yum install mod_ssl

and then reload and restart your Apache server using following commands:

systemctl reload httpd.service
systemctl restart httpd.service

This should work for most of the cases.

You can use boost::lexical_cast, as suggested, but if you have any prior knowledge about the strings (i.e. that if a string contains an integer literal it won't have any leading space, or that integers are never written with exponents), then rolling your own function should be both more efficient, and not particularly difficult.

What is the exact error message? #1062 means duplicate entry violating a primary key constraint for a column -- which boils down to the point that you cannot have two of the same values in the column. The error message should tell you which of your columns is constrained, I'm guessing "shares".

The new Intersection Observer API addresses this question very directly.

This solution will need a polyfill as Safari, Opera and Internet Explorer don't support this yet (the polyfill is included in the solution).

In this solution, there is a box out of view that is the target (observed). When it comes into view, the button at the top in the header is hidden. It is shown once the box leaves the view.

const buttonToHide = document.querySelector('button');_x000D_
_x000D_
const hideWhenBoxInView = new IntersectionObserver((entries) => {_x000D_
  if (entries[0].intersectionRatio <= 0) { // If not in view_x000D_
    buttonToHide.style.display = "inherit";_x000D_
  } else {_x000D_
    buttonToHide.style.display = "none";_x000D_
  }_x000D_
});_x000D_
_x000D_
hideWhenBoxInView.observe(document.getElementById('box'));

header {_x000D_
  position: fixed;_x000D_
  top: 0;_x000D_
  width: 100vw;_x000D_
  height: 30px;_x000D_
  background-color: lightgreen;_x000D_
}_x000D_
_x000D_
.wrapper {_x000D_
  position: relative;_x000D_
  margin-top: 600px;_x000D_
}_x000D_
_x000D_
#box {_x000D_
  position: relative;_x000D_
  left: 175px;_x000D_
  width: 150px;_x000D_
  height: 135px;_x000D_
  background-color: lightblue;_x000D_
  border: 2px solid;_x000D_
}

<script src="https://polyfill.io/v2/polyfill.min.js?features=IntersectionObserver"></script>_x000D_
<header>_x000D_
  <button>NAVIGATION BUTTON TO HIDE</button>_x000D_
</header>_x000D_
  <div class="wrapper">_x000D_
    <div id="box">_x000D_
    </div>_x000D_
  </div>

The method you're using to read the http body response returns a byte slice:

func ReadAll(r io.Reader) ([]byte, error)

official documentation

You can convert []byte to a string by using

body, err := ioutil.ReadAll(resp.Body)
bodyString := string(body)

Make sure

{!! csrf_field() !!}

is added within your form in blade syntax.

or in simple form syntax

<input type="hidden" name="_token" value="{{ csrf_token() }}">

along with this, make sure, in session.php (in config folder), following is set correctly.

'domain' => env('SESSION_DOMAIN', 'sample-project.com'),

or update the same in .env file like,

SESSION_DOMAIN=sample-project.com

In my case {!! csrf_field() !!} was added correctly but SESSION_DOMAIN was not configured correctly. After I changed it with correct value in my .env file, it worked.

Use Except:

var firstNotSecond = list1.Except(list2).ToList();
var secondNotFirst = list2.Except(list1).ToList();

I suspect there are approaches which would actually be marginally faster than this, but even this will be vastly faster than your O(N * M) approach.

If you want to combine these, you could create a method with the above and then a return statement:

return !firstNotSecond.Any() && !secondNotFirst.Any();

One point to note is that there is a difference in results between the original code in the question and the solution here: any duplicate elements which are only in one list will only be reported once with my code, whereas they'd be reported as many times as they occur in the original code.

For example, with lists of [1, 2, 2, 2, 3] and [1], the "elements in list1 but not list2" result in the original code would be [2, 2, 2, 3]. With my code it would just be [2, 3]. In many cases that won't be an issue, but it's worth being aware of.

I had raised a support ticket against Github and got a response confirming the fact that ALL pages are public. I've now requested them to add a note to help.github.com/pages.

A different approach would be to using multi-dimensional arrays:

var driversCounter = [
    ["one", 1], 
    ["two", 2], 
    ["three", 3], 
    ["four", 4], 
    ["five", 5]
]

and access the value by driverCounter[k][j], where j=0,1 in the case.
Add it in a drop down list by:

var dd = document.getElementById('your_dropdown_element');
for(i=0;i<driversCounter.length-1;i++)
{
    dd.options.add(opt);
    opt.text = driversCounter[i][0];
    opt.value = driversCounter[i][1];
}

I was having a very similar problem. I was getting inconsistent height() values when I refreshed my page. (It wasn't my variable causing the problem, it was the actual height value.)

I noticed that in the head of my page I called my scripts first, then my css file. I switched so that the css file is linked first, then the script files and that seems to have fixed the problem so far.

Hope that helps.

Try this:

function _base64ToArrayBuffer(base64) {
    var binary_string = window.atob(base64);
    var len = binary_string.length;
    var bytes = new Uint8Array(len);
    for (var i = 0; i < len; i++) {
        bytes[i] = binary_string.charCodeAt(i);
    }
    return bytes.buffer;
}

For PostgreSQL example:

UPDATE TableA AS a
SET param_from_table_a=FALSE -- param FROM TableA
FROM TableB AS b
WHERE b.id=a.param_id AND a.amount <> 0; 

Here's an answer that gives the switch-or-launch behaviour of Start, without the Command Prompt window. It does have the drawback that it can be fooled by an Explorer window that has a folder of the same name elsewhere opened. I might fix that by diving into the child windows and looking for the actual path, I need to figure out how to navigate that.

Usage (requires "Windows Script Host Object Model" in your project's References):

Dim mShell As wshShell

mDocPath = whatever_path & "\" & lastfoldername
mExplorerPath = mShell.ExpandEnvironmentStrings("%SystemRoot%") & "\Explorer.exe"

If Not SwitchToFolder(lastfoldername) Then
    Shell PathName:=mExplorerPath & " """ & mDocPath & """", WindowStyle:=vbNormalFocus
End If

Module:

Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" _
(ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Private Declare Function GetClassName Lib "user32" Alias "GetClassNameA" _
(ByVal hWnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
Private Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" _
(ByVal hWnd As Long, ByVal lpString As String, ByVal cch As Long) As Long
Private Declare Function BringWindowToTop Lib "user32" _
(ByVal lngHWnd As Long) As Long

Function SwitchToFolder(pFolder As String) As Boolean

Dim hWnd As Long
Dim mRet As Long
Dim mText As String
Dim mWinClass As String
Dim mWinTitle As String

    SwitchToFolder = False

    hWnd = FindWindowEx(0, 0&, vbNullString, vbNullString)
    While hWnd <> 0 And SwitchToFolder = False
        mText = String(100, Chr(0))
        mRet = GetClassName(hWnd, mText, 100)
        mWinClass = Left(mText, mRet)
        If mWinClass = "CabinetWClass" Then
            mText = String(100, Chr(0))
            mRet = GetWindowText(hWnd, mText, 100)
            If mRet > 0 Then
                mWinTitle = Left(mText, mRet)
                If UCase(mWinTitle) = UCase(pFolder) Or _
                   UCase(Right(mWinTitle, Len(pFolder) + 1)) = "\" & UCase(pFolder) Then
                    BringWindowToTop hWnd
                    SwitchToFolder = True
                End If
            End If
        End If
        hWnd = FindWindowEx(0, hWnd, vbNullString, vbNullString)
    Wend

End Function

update @tymeJV 's answer eg:

 <div style="display: none">
    <input type="text" name='price' ng-model="price" ng-init="price = <%= @product.price.to_s %>" >
 </div>

You declare a function pointer variable for the given signature of your functions like this:

bool (* fnptr)();

you can assign it one of your functions:

fnptr = A;

and you can call it:

bool result = fnptr();

You might consider using typedefs to define a type for every distinct function signature you need. This will make the code easier to read and to maintain. i.e. for the signature of functions returning bool with no arguments this could be:

typdef bool (* BoolFn)();

and then you can use like this to declare the function pointer variable for this type:

BoolFn fnptr;

If you were using Theme.AppCompat.Light, a better equivalent would be Theme.AppCompat.Light.NoActionBar.

I found that using Theme.AppCompat.NoTitleBar caused my button text to be invisible so I am using Theme.AppCompat.Light.NoActionBar.

<activity android:name=".Activity"
    android:label="@string/app_name"
    android:theme="@android:style/Theme.AppCompat.Light.NoActionBar">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>

You can use the built in OnSelecting parameter of asp:SqlDataSource

Example: [.aspx file]

<asp:SqlDataSource ID="SqldsExample" runat="server"
SelectCommand="SELECT [SomeColumn], [AnotherColumn] 
               FROM [SomeTable]
               WHERE [Dynamic_Variable_Column] = @DynamicVariable"
OnSelecting="SqldsExample_Selecting">
<SelectParameters>
    <asp:Parameter Name="DynamicVariable" Type="String"/>
</SelectParameters>

Then in your code behind implement your OnSelecting method: [.aspx.cs]

protected void SqldsExample_Selecting(object sender, SqlDataSourceCommandEventArgs e)
{
     e.Command.Parameters["@DynamicVariable"].Value = (whatever value you want);
}

You can also use this for the other types of DB operations just implement your own methods:

OnInserting="SqldsExample_Inserting"
OnUpdating="SqldsExample_Updating"
OnDeleting="SqldsExample_Deleting"

If you call getcwd it should give you the path:

<?php
  echo getcwd();
?>

All you need to do to get the event is the following:

console.log(angular.element(event.which));

A directive can do it, but that is not how you do it.

Here is a easy method.

First parse the JSON from url -

public String readJSONFeed(String URL) {
    StringBuilder stringBuilder = new StringBuilder();
    HttpClient httpClient = new DefaultHttpClient();
    HttpGet httpGet = new HttpGet(URL);

    try {

        HttpResponse response = httpClient.execute(httpGet);
        StatusLine statusLine = response.getStatusLine();
        int statusCode = statusLine.getStatusCode();

        if (statusCode == 200) {

            HttpEntity entity = response.getEntity();
            InputStream inputStream = entity.getContent();
            BufferedReader reader = new BufferedReader(
                    new InputStreamReader(inputStream));
            String line;
            while ((line = reader.readLine()) != null) {
                stringBuilder.append(line);
            }

            inputStream.close();

        } else {
            Log.d("JSON", "Failed to download file");
        }
    } catch (Exception e) {
        Log.d("readJSONFeed", e.getLocalizedMessage());
    }
    return stringBuilder.toString();
}

Then place a task and then read the desired value from JSON -

private class ReadPlacesFeedTask extends AsyncTask<String, Void, String> {
    protected String doInBackground(String... urls) {

        return readJSONFeed(urls[0]);
    }

    protected void onPostExecute(String result) {

        JSONObject json;
        try {
            json = new JSONObject(result);

        ////CREATE A JSON OBJECT////

        JSONObject data = json.getJSONObject("JSON OBJECT NAME");

        ////GET A STRING////

        String title = data.getString("");

        //Similarly you can get other types of data
        //Replace String to the desired data type like int or boolean etc.

        } catch (JSONException e1) {
            e1.printStackTrace();

        }

        //GETTINGS DATA FROM JSON ARRAY//

        try {

            JSONObject jsonObject = new JSONObject(result);
            JSONArray postalCodesItems = new JSONArray(
                    jsonObject.getString("postalCodes"));

                JSONObject postalCodesItem = postalCodesItems
                        .getJSONObject(1);

        } catch (Exception e) {
            Log.d("ReadPlacesFeedTask", e.getLocalizedMessage());
        }
    }
}

You can then place a task like this -

new ReadPlacesFeedTask()
    .execute("JSON URL");

Here's the solution to getting the 1045 Access denied for user 'root'@'localhost' (using password: NO) in phpMyAdmin.

First here's what happens:

The problem occurs when you change over from using phpMyAdmin with no password and mysql with no root password. You change root in mysql to having a root password. You dutifully change phpMyAdmin's config.ini.php file's $cfg['Servers'][$i]['password']='' line to include your password and restart everything you can find, but phpMyAdmin still can't get through.

The reason is that your browser still contains cookies for phpMyAdmin and those cookies reflect not needing a password to access mysql.

The solution:

Clear out the cookies relating to phpMyAdmin. Its browser specific, but in my Firefox, its under Tools > Page Info > Cookies.

You might need to relog in with phpMyAdmin or use the signon.php script (under /examples in my WAMP install).

Extend the LayoutManager and override canScrollHorizontally()and canScrollVertically() to disable scrolling.

Be aware that inserting items at the beginning will not automatically scroll back to the beginning, to get around this do something like:

  private void clampRecyclerViewScroll(final RecyclerView recyclerView)
  {
    recyclerView.getAdapter().registerAdapterDataObserver(new RecyclerView.AdapterDataObserver()
    {
      @Override
      public void onItemRangeInserted(int positionStart, int itemCount)
      {
        super.onItemRangeInserted(positionStart, itemCount);
        // maintain scroll position at top
        if (positionStart == 0)
        {
          RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
          if (layoutManager instanceof GridLayoutManager)
          {
            ((GridLayoutManager) layoutManager).scrollToPositionWithOffset(0, 0);
          }else if(layoutManager instanceof LinearLayoutManager)
          {
            ((LinearLayoutManager) layoutManager).scrollToPositionWithOffset(0, 0);
          }
        }
      }
    });
  }

From the MySQL prompt:

mysql> drop database <db_name>;

Java 8 added a new API for working with dates and times. With Java 8 you can use

import java.time.Instant
...
long unixTimestamp = Instant.now().getEpochSecond();

Instant.now() returns an Instant that represents the current system time. With getEpochSecond() you get the epoch seconds (unix time) from the Instant.

This works like charm!

So I edited the code as per my requirement. And here are the changes: It will save the id number from the response into the environment variable.

var jsonData = JSON.parse(responseBody);
for (var i = 0; i < jsonData.data.length; i++)
{
    var counter = jsonData.data[i];
    postman.setEnvironmentVariable("schID", counter.id);
}

The Question is not private or public, the question is: How is it invoked and which AOP implementation you use!

If you use (default) Spring Proxy AOP, then all AOP functionality provided by Spring (like @Transactional) will only be taken into account if the call goes through the proxy. -- This is normally the case if the annotated method is invoked from another bean.

This has two implications:

• Because private methods must not be invoked from another bean (the exception is reflection), their @Transactional Annotation is not taken into account.
• If the method is public, but it is invoked from the same bean, it will not be taken into account either (this statement is only correct if (default) Spring Proxy AOP is used).

@See Spring Reference: Chapter 9.6 9.6 Proxying mechanisms

IMHO you should use the aspectJ mode, instead of the Spring Proxies, that will overcome the problem. And the AspectJ Transactional Aspects are woven even into private methods (checked for Spring 3.0).

There is a quick method to set the syntax: Ctrl+Shift+P,then type in the input box

ss + (which type you want set)

eg: ss html +Enter

and ss means "set syntax"

it is really quicker than check in the menu's checkbox.

For .htaccess rewrite: http://learn.iis.net/page.aspx/557/translate-htaccess-content-to-iis-webconfig/

Or try aping .htaccess: http://www.helicontech.com/ape/

Looping through all the files in the folder is relatively easy:

files = dir('*.csv');
for file = files'
    csv = load(file.name);
    % Do some stuff
end

A static nested class interacts with the instance members of its outer class (and other classes) just like any other top-level class. In effect, a static nested class is behaviorally a top-level class that has been nested in another top-level class for packaging convenience.

Use System.currentTimeMillis() or System.nanoTime().

Here is an up-to-date approach as of October 2020, with Android X. This comes from Android's documentation, "Enable multidex for apps with over 64K methods."

For minSdk >= 21

You do not need to do anything. All of these devices use the Android RunTime (ART) VM, which supports multidex natively.

For minSdk < 21

In your module-level build.gradle, ensure that the following configurations are populated:

android {
    defaultConfig {
        multiDexEnabled true
    }
}

dependencies {
    implementation 'androidx.multidex:multidex:2.0.1'
}

You need to install explicit multidex support. The documentation includes three methods to do so, and you have to pick one.

For example, in your src/main/AndroidManifest.xml, you can declare MultiDexApplication as the application:name:

<manifest package="com.your.package"
          xmlns:android="http://schemas.android.com/apk/res/android">
    <application android:name="androidx.multidex.MultiDexApplication" />
</manifest>

Check the mozilla documentation on window.open. The window features ("directory=...,...,height=350") etc. arguments should be a string:

window.open('/pageaddress.html','winname',"directories=0,titlebar=0,toolbar=0,location=0,status=0,menubar=0,scrollbars=no,resizable=no,width=400,height=350");

Try if that works in your browsers. Note that some of the features might be overridden by user preferences, such as "location" (see doc.)

I had two related but not identical guava libraries in the /libs directory, after I removed one, the problem went away.

Removes the HORIZONTAL scrollbar while ALLOWING for scroll and NOTHING more.

&::-webkit-scrollbar:horizontal {
  height: 0;
  width: 0;
  display: none;
}

&::-webkit-scrollbar-thumb:horizontal {
  display: none;
}

You may fill the column by double-clicking on the bottom right hand corner of the cell which you want to copy from (the point on the box that you would otherwise drag) and it will be applied to whole column.

NB: This doesn't work if you have the filter applied, nor if there is already something already in the cells below.

If you want to redirect a whole subfolder, the url argument in RedirectView is actually interpolated, so you can do something like this in urls.py:

from django.conf.urls.defaults import url
from django.views.generic import RedirectView

urlpatterns = [
    url(r'^old/(?P<path>.*)$', RedirectView.as_view(url='/new_path/%(path)s')),
]

The ?P<path> you capture will be fed into RedirectView. This captured variable will then be replaced in the url argument you gave, giving us /new_path/yay/mypath if your original path was /old/yay/mypath.

You can also do ….as_view(url='…', query_string=True) if you want to copy the query string over as well.

Most of it is explained in the GC Tuning Guide (which you would do well to read anyway).

The command line option -verbose:gc causes information about the heap and garbage collection to be printed at each collection. For example, here is output from a large server application:

[GC 325407K->83000K(776768K), 0.2300771 secs]
[GC 325816K->83372K(776768K), 0.2454258 secs]
[Full GC 267628K->83769K(776768K), 1.8479984 secs]

Here we see two minor collections followed by one major collection. The numbers before and after the arrow (e.g., 325407K->83000K from the first line) indicate the combined size of live objects before and after garbage collection, respectively. After minor collections the size includes some objects that are garbage (no longer alive) but that cannot be reclaimed. These objects are either contained in the tenured generation, or referenced from the tenured or permanent generations.

The next number in parentheses (e.g., (776768K) again from the first line) is the committed size of the heap: the amount of space usable for java objects without requesting more memory from the operating system. Note that this number does not include one of the survivor spaces, since only one can be used at any given time, and also does not include the permanent generation, which holds metadata used by the virtual machine.

The last item on the line (e.g., 0.2300771 secs) indicates the time taken to perform the collection; in this case approximately a quarter of a second.

The format for the major collection in the third line is similar.

The format of the output produced by -verbose:gc is subject to change in future releases.

I'm not certain why there's a PSYoungGen in yours; did you change the garbage collector?

I have dozens of installations of my app with different clients which all worked fine and then this one just always returned 404 on all api calls. It turns out that when I created the application pool in IIS for this client it defaulted to .net framework 2.0 instead of 4.0 and I missed it. This caused the 404 error. Seems to me this should have been a 500 error. Very misleading Microsoft!

Hmmm you can find lot of examples for configuring spring framework. Anyways here is a sample

@Configuration
@Import({PersistenceConfig.class})
@ComponentScan(basePackageClasses = { 
    ServiceMarker.class,
    RepositoryMarker.class }
)
public class AppConfig {

}

PersistenceConfig

@Configuration
@PropertySource(value = { "classpath:database/jdbc.properties" })
@EnableTransactionManagement
public class PersistenceConfig {

    private static final String PROPERTY_NAME_HIBERNATE_DIALECT = "hibernate.dialect";
    private static final String PROPERTY_NAME_HIBERNATE_MAX_FETCH_DEPTH = "hibernate.max_fetch_depth";
    private static final String PROPERTY_NAME_HIBERNATE_JDBC_FETCH_SIZE = "hibernate.jdbc.fetch_size";
    private static final String PROPERTY_NAME_HIBERNATE_JDBC_BATCH_SIZE = "hibernate.jdbc.batch_size";
    private static final String PROPERTY_NAME_HIBERNATE_SHOW_SQL = "hibernate.show_sql";
    private static final String[] ENTITYMANAGER_PACKAGES_TO_SCAN = {"a.b.c.entities", "a.b.c.converters"};

    @Autowired
    private Environment env;

     @Bean(destroyMethod = "close")
     public DataSource dataSource() {
         BasicDataSource dataSource = new BasicDataSource();
         dataSource.setDriverClassName(env.getProperty("jdbc.driverClassName"));
         dataSource.setUrl(env.getProperty("jdbc.url"));
         dataSource.setUsername(env.getProperty("jdbc.username"));
         dataSource.setPassword(env.getProperty("jdbc.password"));
         return dataSource;
     }

     @Bean
     public JpaTransactionManager jpaTransactionManager() {
         JpaTransactionManager transactionManager = new JpaTransactionManager();
         transactionManager.setEntityManagerFactory(entityManagerFactoryBean().getObject());
         return transactionManager;
     }

    private HibernateJpaVendorAdapter vendorAdaptor() {
         HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
         vendorAdapter.setShowSql(true);
         return vendorAdapter;
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean() {

         LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
         entityManagerFactoryBean.setJpaVendorAdapter(vendorAdaptor());
         entityManagerFactoryBean.setDataSource(dataSource());
         entityManagerFactoryBean.setPersistenceProviderClass(HibernatePersistenceProvider.class);
         entityManagerFactoryBean.setPackagesToScan(ENTITYMANAGER_PACKAGES_TO_SCAN);             
         entityManagerFactoryBean.setJpaProperties(jpaHibernateProperties());

         return entityManagerFactoryBean;
     }

     private Properties jpaHibernateProperties() {

         Properties properties = new Properties();

         properties.put(PROPERTY_NAME_HIBERNATE_MAX_FETCH_DEPTH, env.getProperty(PROPERTY_NAME_HIBERNATE_MAX_FETCH_DEPTH));
         properties.put(PROPERTY_NAME_HIBERNATE_JDBC_FETCH_SIZE, env.getProperty(PROPERTY_NAME_HIBERNATE_JDBC_FETCH_SIZE));
         properties.put(PROPERTY_NAME_HIBERNATE_JDBC_BATCH_SIZE, env.getProperty(PROPERTY_NAME_HIBERNATE_JDBC_BATCH_SIZE));
         properties.put(PROPERTY_NAME_HIBERNATE_SHOW_SQL, env.getProperty(PROPERTY_NAME_HIBERNATE_SHOW_SQL));

         properties.put(AvailableSettings.SCHEMA_GEN_DATABASE_ACTION, "none");
         properties.put(AvailableSettings.USE_CLASS_ENHANCER, "false");      
         return properties;       
     }

}

Main

public static void main(String[] args) { 
    try (GenericApplicationContext springContext = new AnnotationConfigApplicationContext(AppConfig.class)) {
        MyService myService = springContext.getBean(MyServiceImpl.class);
        try {
            myService.handleProcess(fromDate, toDate);
        } catch (Exception e) {
            logger.error("Exception occurs", e);
            myService.handleException(fromDate, toDate, e);
        }
    } catch (Exception e) {
        logger.error("Exception occurs in loading Spring context: ", e);
    }
}

MyService

@Service
public class MyServiceImpl implements MyService {

    @Inject
    private MyDao myDao;

    @Override
    public void handleProcess(String fromDate, String toDate) {
        List<Student> myList = myDao.select(fromDate, toDate);
    }
}

MyDaoImpl

@Repository
@Transactional
public class MyDaoImpl implements MyDao {

    @PersistenceContext
    private EntityManager entityManager;

    public Student select(String fromDate, String toDate){

        TypedQuery<Student> query = entityManager.createNamedQuery("Student.findByKey", Student.class);
        query.setParameter("fromDate", fromDate);
        query.setParameter("toDate", toDate);
        List<Student> list = query.getResultList();
        return CollectionUtils.isEmpty(list) ? null : list;
    }

}

Assuming maven project: Properties file should be in src/main/resources/database folder

jdbc.properties file

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=your db url
jdbc.username=your Username
jdbc.password=Your password

hibernate.max_fetch_depth = 3
hibernate.jdbc.fetch_size = 50
hibernate.jdbc.batch_size = 10
hibernate.show_sql = true

ServiceMarker and RepositoryMarker are just empty interfaces in your service or repository impl package.

Let's say you have package name a.b.c.service.impl. MyServiceImpl is in this package and so is ServiceMarker.

public interface ServiceMarker {

}

Same for repository marker. Let's say you have a.b.c.repository.impl or a.b.c.dao.impl package name. Then MyDaoImpl is in this this package and also Repositorymarker

public interface RepositoryMarker {

}

a.b.c.entities.Student

//dummy class and dummy query
@Entity
@NamedQueries({
@NamedQuery(name="Student.findByKey", query="select s from Student s where s.fromDate=:fromDate" and s.toDate = :toDate)
})
public class Student implements Serializable {

    private LocalDateTime fromDate;
    private LocalDateTime toDate;

    //getters setters

}

a.b.c.converters

@Converter(autoApply = true)
public class LocalDateTimeConverter implements AttributeConverter<LocalDateTime, Timestamp> {

    @Override
    public Timestamp convertToDatabaseColumn(LocalDateTime dateTime) {

        if (dateTime == null) {
            return null;
        }
        return Timestamp.valueOf(dateTime);
    }

    @Override
    public LocalDateTime convertToEntityAttribute(Timestamp timestamp) {

        if (timestamp == null) {
            return null;
        }    
        return timestamp.toLocalDateTime();
    }
}

pom.xml

<properties>
    <java-version>1.8</java-version>
    <org.springframework-version>4.2.1.RELEASE</org.springframework-version>
    <hibernate-entitymanager.version>5.0.2.Final</hibernate-entitymanager.version>
    <commons-dbcp2.version>2.1.1</commons-dbcp2.version>
    <mysql-connector-java.version>5.1.36</mysql-connector-java.version>
     <junit.version>4.12</junit.version> 
</properties>

<dependencies>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>${junit.version}</version>
        <scope>test</scope>
    </dependency>

    <!-- Spring -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${org.springframework.version}</version>
    </dependency>

    <dependency>
        <groupId>javax.inject</groupId>
        <artifactId>javax.inject</artifactId>
        <version>1</version>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${org.springframework-version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${org.springframework-version}</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>${hibernate-entitymanager.version}</version>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>${mysql-connector-java.version}</version>
    </dependency>

    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-dbcp2</artifactId>
        <version>${commons-dbcp2.version}</version>
    </dependency>
</dependencies>

<build>
     <finalName>${project.artifactId}</finalName>
     <plugins>
         <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.3</version>
            <configuration>
                <source>${java-version}</source>
                <target>${java-version}</target>
                <compilerArgument>-Xlint:all</compilerArgument>
                <showWarnings>true</showWarnings>
                <showDeprecation>true</showDeprecation>
            </configuration>
        </plugin>
     </plugins>
</build>

Hope it helps. Thanks

Heres the code that creates a Dialog which allows the user of your application to change the Look And Feel based on the user's systems. Alternatively, if you can store the wanted Look And Feel's on your application, then they could be "portable", which is the desired result.

   public void changeLookAndFeel() {

        List<String> lookAndFeelsDisplay = new ArrayList<>();
        List<String> lookAndFeelsRealNames = new ArrayList<>();

        for (LookAndFeelInfo each : UIManager.getInstalledLookAndFeels()) {
            lookAndFeelsDisplay.add(each.getName());
            lookAndFeelsRealNames.add(each.getClassName());
        }

        String changeLook = (String) JOptionPane.showInputDialog(this, "Choose Look and Feel Here:", "Select Look and Feel", JOptionPane.QUESTION_MESSAGE, null, lookAndFeelsDisplay.toArray(), null);

        if (changeLook != null) {
            for (int i = 0; i < lookAndFeelsDisplay.size(); i++) {
                if (changeLook.equals(lookAndFeelsDisplay.get(i))) {
                    try {
                        UIManager.setLookAndFeel(lookAndFeelsRealNames.get(i));
                        break;
                    }
                    catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                        err.println(ex);
                        ex.printStackTrace(System.err);
                    }
                }
            }
        }
    }

Use this StreamWriter constructor with 2nd parameter - true.

To do this in any ES5-compatible environment

Object.keys(obj).length

(Browser support from here)
(Doc on Object.keys here, includes method you can add to non-ECMA5 browsers)

I thought my laptop was the origin…

That’s kind of nonsensical: origin refers to the default remote repository – the one you usually fetch/pull other people’s changes from.

How can I:

1. git remote -v will show you what origin is; origin/master is your “bookmark” for the last known state of the master branch of the origin repository, and your own master is a tracking branch for origin/master. This is all as it should be.

2. You don’t. At least it makes no sense for a repository to be the default remote repository for itself.

3. It isn’t. It’s merely telling you that you have made so-and-so many commits locally which aren’t in the remote repository (according to the last known state of that repository).

I have today similar problem. But weirder.

• host - works host pl.archive.ubuntu.com
• dig - works on default and on all other DNS's dig pl.archive.ubuntu.com, dig @127.0.1.1 pl.archive.ubuntu.com
• curl - doesn't work! but for some addresses it does. WEIRD! Same in Ruby, APT and many more.

$ curl -v http://google.com/
*   Trying 172.217.18.78...
* Connected to google.com (172.217.18.78) port 80 (#0)
> GET / HTTP/1.1
> Host: google.com
> User-Agent: curl/7.47.0
> Accept: */*
>
< HTTP/1.1 302 Found
< Cache-Control: private
< Content-Type: text/html; charset=UTF-8
< Referrer-Policy: no-referrer
< Location: http://www.google.pl/?gfe_rd=cr&ei=pt9UWfqXL4uBX_W5n8gB
< Content-Length: 256
< Date: Thu, 29 Jun 2017 11:08:22 GMT
<
<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">
<TITLE>302 Moved</TITLE></HEAD><BODY>
<H1>302 Moved</H1>
The document has moved
<A HREF="http://www.google.pl/?gfe_rd=cr&ei=pt9UWfqXL4uBX_W5n8gB">here</A>.
</BODY></HTML>
* Connection #0 to host google.com left intact

$ curl -v http://pl.archive.ubuntu.com/
* Could not resolve host: pl.archive.ubuntu.com
* Closing connection 0
curl: (6) Could not resolve host: pl.archive.ubuntu.com

Revelation

Eventually I used strace on curl and found that it was connection to nscd deamon.

connect(4, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) = 0

Solution

I've restarted the nscd service (Name Service Cache Daemon) and it helped to solve this issue!

systemctl restart nscd.service

I know this has already been highly voted in here by now, but I'd rather go for a custom directive approach and rely on the ClipboardEvent as @jockeisorby suggested, while also making sure the listener is correctly removed (same function needs to be provided for both the add and remove event listeners)

stackblitz demo

import { Directive, Input, Output, EventEmitter, HostListener } from "@angular/core";

@Directive({ selector: '[copy-clipboard]' })
export class CopyClipboardDirective {

  @Input("copy-clipboard")
  public payload: string;

  @Output("copied")
  public copied: EventEmitter<string> = new EventEmitter<string>();

  @HostListener("click", ["$event"])
  public onClick(event: MouseEvent): void {

    event.preventDefault();
    if (!this.payload)
      return;

    let listener = (e: ClipboardEvent) => {
      let clipboard = e.clipboardData || window["clipboardData"];
      clipboard.setData("text", this.payload.toString());
      e.preventDefault();

      this.copied.emit(this.payload);
    };

    document.addEventListener("copy", listener, false)
    document.execCommand("copy");
    document.removeEventListener("copy", listener, false);
  }
}

and then use it as such

<a role="button" [copy-clipboard]="'some stuff'" (copied)="notify($event)">
  <i class="fa fa-clipboard"></i>
  Copy
</a>

public notify(payload: string) {
   // Might want to notify the user that something has been pushed to the clipboard
   console.info(`'${payload}' has been copied to clipboard`);
}

Note: notice the window["clipboardData"] is needed for IE as it does not understand e.clipboardData

You just need to toggle the value of "isReplyFormOpen" on ng-click event

<a ng-click="isReplyFormOpen = !isReplyFormOpen">Reply</a>
 <div ng-show="isReplyFormOpen" id="replyForm">
   </div>

In your onTestClick function, pass in the event argument and call preventDefault() on it.

function onTestClick(e) {
    e.preventDefault();
}

I think these could be helpful for you .

Using a SELECT statement with a simple CASE expression

Within a SELECT statement, a simple CASE expression allows for only an equality check; no other comparisons are made. The following example uses the CASE expression to change the display of product line categories to make them more understandable.

USE AdventureWorks2012;
GO
SELECT   ProductNumber, Category =
      CASE ProductLine
         WHEN 'R' THEN 'Road'
         WHEN 'M' THEN 'Mountain'
         WHEN 'T' THEN 'Touring'
         WHEN 'S' THEN 'Other sale items'
         ELSE 'Not for sale'
      END,
   Name
FROM Production.Product
ORDER BY ProductNumber;
GO

Using a SELECT statement with a searched CASE expression

Within a SELECT statement, the searched CASE expression allows for values to be replaced in the result set based on comparison values. The following example displays the list price as a text comment based on the price range for a product.

USE AdventureWorks2012;
GO
SELECT   ProductNumber, Name, "Price Range" = 
      CASE 
         WHEN ListPrice =  0 THEN 'Mfg item - not for resale'
         WHEN ListPrice < 50 THEN 'Under $50'
         WHEN ListPrice >= 50 and ListPrice < 250 THEN 'Under $250'
         WHEN ListPrice >= 250 and ListPrice < 1000 THEN 'Under $1000'
         ELSE 'Over $1000'
      END
FROM Production.Product
ORDER BY ProductNumber ;
GO

Using CASE in an ORDER BY clause

The following examples uses the CASE expression in an ORDER BY clause to determine the sort order of the rows based on a given column value. In the first example, the value in the SalariedFlag column of the HumanResources.Employee table is evaluated. Employees that have the SalariedFlag set to 1 are returned in order by the BusinessEntityID in descending order. Employees that have the SalariedFlag set to 0 are returned in order by the BusinessEntityID in ascending order. In the second example, the result set is ordered by the column TerritoryName when the column CountryRegionName is equal to 'United States' and by CountryRegionName for all other rows.

SELECT BusinessEntityID, SalariedFlag
FROM HumanResources.Employee
ORDER BY CASE SalariedFlag WHEN 1 THEN BusinessEntityID END DESC
        ,CASE WHEN SalariedFlag = 0 THEN BusinessEntityID END;
GO


SELECT BusinessEntityID, LastName, TerritoryName, CountryRegionName
FROM Sales.vSalesPerson
WHERE TerritoryName IS NOT NULL
ORDER BY CASE CountryRegionName WHEN 'United States' THEN TerritoryName
         ELSE CountryRegionName END;

Using CASE in an UPDATE statement

The following example uses the CASE expression in an UPDATE statement to determine the value that is set for the column VacationHours for employees with SalariedFlag set to 0. When subtracting 10 hours from VacationHours results in a negative value, VacationHours is increased by 40 hours; otherwise, VacationHours is increased by 20 hours. The OUTPUT clause is used to display the before and after vacation values.

USE AdventureWorks2012;
GO
UPDATE HumanResources.Employee
SET VacationHours = 
    ( CASE
         WHEN ((VacationHours - 10.00) < 0) THEN VacationHours + 40
         ELSE (VacationHours + 20.00)
       END
    )
OUTPUT Deleted.BusinessEntityID, Deleted.VacationHours AS BeforeValue, 
       Inserted.VacationHours AS AfterValue
WHERE SalariedFlag = 0; 

Using CASE in a HAVING clause

The following example uses the CASE expression in a HAVING clause to restrict the rows returned by the SELECT statement. The statement returns the the maximum hourly rate for each job title in the HumanResources.Employee table. The HAVING clause restricts the titles to those that are held by men with a maximum pay rate greater than 40 dollars or women with a maximum pay rate greater than 42 dollars.

USE AdventureWorks2012;
GO
SELECT JobTitle, MAX(ph1.Rate)AS MaximumRate
FROM HumanResources.Employee AS e
JOIN HumanResources.EmployeePayHistory AS ph1 ON e.BusinessEntityID = ph1.BusinessEntityID
GROUP BY JobTitle
HAVING (MAX(CASE WHEN Gender = 'M' 
        THEN ph1.Rate 
        ELSE NULL END) > 40.00
     OR MAX(CASE WHEN Gender  = 'F' 
        THEN ph1.Rate  
        ELSE NULL END) > 42.00)
ORDER BY MaximumRate DESC;

For more details description of these example visit the source.

Also visit here and here for some examples with great details.

You should use this:

<Link to={this.props.myroute} onClick={hello}>Here</Link>

Or (if method hello lays at this class):

<Link to={this.props.myroute} onClick={this.hello}>Here</Link>

Update: For ES6 and latest if you want to bind some param with click method, you can use this:

    const someValue = 'some';  
....  
    <Link to={this.props.myroute} onClick={() => hello(someValue)}>Here</Link>

Build from the output directory

Instead of building from the top-level directory, build from the output directory. You can access the source directories by setting the vpath. This option has the advantage that the built-in rules can be used.

build.sh

#!/bin/bash
mkdir -p obj
cp Makefile.template obj/Makefile
cd obj
make "$*"

Makefile

.SUFFIXES:
.SUFFIXES: .c .o

CC=gcc 
CPPFLAGS=-Wall
LDLIBS=-lhpdf
VPATH=%.c ../src
VPATH=%.h ../src

objects=kumain.o kudlx.o kusolvesk.o kugetpuz.o kuutils.o \
  kurand.o kuASCboard.o kuPDFs.o kupuzstrings.o kugensud.o \
  kushapes.o

ku : $(objects)

$(objects) : ku.h kudefines.h kuglobals.h kufns.h

.PHONY: clean
clean :
  rm $(objects)

The disadvantage is that error messages do not match the CWD. This can be solved by skipping build.sh and directly building from the obj directory.

Another advantage of this approach is that it's somewhat popular. cmake works in a similar fashion.

Create Rule based on output option

The following solution isn't nice in my opinion, as I really love the built-in rules. However, GNU make doesn't support something like vpath for output directories. And the built-in rules cannot match, as the % in %.o would match obj/foo of obj/foo.o, leaving make with a search in vpath %.c src/ for stuff like src/obj/foo.c, but not src/foo.c.

But this is as close to the built-in rules as you can get, and therefore to my best knowledge the nicest solution that's available.

$(OBJDIR)/%.o: %.c
        $(COMPILE.c) $(OUTPUT_OPTION) $<

Explanation: $(COMPILE.c) $(OUTPUT_OPTION) $< actually is how .c.o is implemented, see http://git.savannah.gnu.org/cgit/make.git/tree/default.c (and it's even mentioned in the manual)

Besides, if $(OBJDIR) would only ever contain auto-gererated files, you could create it on-the-fly with an order-only prerequisite, making the clean rule slightly simpler:

$(OBJDIR):
        mkdir -p $(OBJDIR)

$(OBJDIR)/%.o: %.c | $(OBJDIR)
        $(COMPILE.c) $(OUTPUT_OPTION) $<

.PHONY: clean
clean:
        $(RM) -r $(OBJDIR)

This requires that the feature order-only is available, which you can check using $(filter order-only, $(.FETAURES)). I've checked on Kubuntu 14.04 GNU make 3.81 and OpenSUSE 13.1 GNU make 3.82. Both were built with order-only enabled, and am now left puzzled why Kubuntu 14.04 comes with an older version of GNU make than OpenSUSE 13.1. Anyways, gonna download make 4.1 now :)

Some code examples for simple GET request. Maybe this helps understanding the difference. Using then:

$http.get('/someURL').then(function(response) {
    var data = response.data,
        status = response.status,
        header = response.header,
        config = response.config;
    // success handler
}, function(response) {
    var data = response.data,
        status = response.status,
        header = response.header,
        config = response.config;
    // error handler
});

Using success/error:

$http.get('/someURL').success(function(data, status, header, config) {
    // success handler
}).error(function(data, status, header, config) {
    // error handler
});

The delimiter can be a regular expression.

awk -F'[/=]' '{print $3 "\t" $5 "\t" $8}' file

Produces:

tc0001   tomcat7.1    demo.example.com  
tc0001   tomcat7.2    quest.example.com  
tc0001   tomcat7.5    www.example.com

If source code is on Github, you can use their comparing tool: https://help.github.com/articles/comparing-commits-across-time/

If you want to take some shortcuts you can use Apache Commons IO:

import org.apache.commons.io.FileUtils;

String data = FileUtils.readFileToString(new File("..."), "UTF-8");
System.out.println(data);

:-)

Short answer: Command >filename 2>&1 or Command &>filename

Explanation:

Consider the following code which prints the word "stdout" to stdout and the word "stderror" to stderror.

$ (echo "stdout"; echo "stderror" >&2)
stdout
stderror

Note that the '&' operator tells bash that 2 is a file descriptor (which points to the stderr) and not a file name. If we left out the '&', this command would print stdout to stdout, and create a file named "2" and write stderror there.

By experimenting with the code above, you can see for yourself exactly how redirection operators work. For instance, by changing which file which of the two descriptors 1,2, is redirected to /dev/null the following two lines of code delete everything from the stdout, and everything from stderror respectively (printing what remains).

$ (echo "stdout"; echo "stderror" >&2) 1>/dev/null
stderror
$ (echo "stdout"; echo "stderror" >&2) 2>/dev/null
stdout

Now, we can explain why the solution why the following code produces no output:

(echo "stdout"; echo "stderror" >&2) >/dev/null 2>&1

To truly understand this, I highly recommend you read this webpage on file descriptor tables. Assuming you have done that reading, we can proceed. Note that Bash processes left to right; thus Bash sees >/dev/null first (which is the same as 1>/dev/null), and sets the file descriptor 1 to point to /dev/null instead of the stdout. Having done this, Bash then moves rightwards and sees 2>&1. This sets the file descriptor 2 to point to the same file as file descriptor 1 (and not to file descriptor 1 itself!!!! (see this resource on pointers for more info)) . Since file descriptor 1 points to /dev/null, and file descriptor 2 points to the same file as file descriptor 1, file descriptor 2 now also points to /dev/null. Thus both file descriptors point to /dev/null, and this is why no output is rendered.

To test if you really understand the concept, try to guess the output when we switch the redirection order:

(echo "stdout"; echo "stderror" >&2)  2>&1 >/dev/null

stderror

The reasoning here is that evaluating from left to right, Bash sees 2>&1, and thus sets the file descriptor 2 to point to the same place as file descriptor 1, ie stdout. It then sets file descriptor 1 (remember that >/dev/null = 1>/dev/null) to point to >/dev/null, thus deleting everything which would usually be send to to the standard out. Thus all we are left with was that which was not send to stdout in the subshell (the code in the parentheses)- i.e. "stderror". The interesting thing to note there is that even though 1 is just a pointer to the stdout, redirecting pointer 2 to 1 via 2>&1 does NOT form a chain of pointers 2 -> 1 -> stdout. If it did, as a result of redirecting 1 to /dev/null, the code 2>&1 >/dev/null would give the pointer chain 2 -> 1 -> /dev/null, and thus the code would generate nothing, in contrast to what we saw above.

Finally, I'd note that there is a simpler way to do this:

From section 3.6.4 here, we see that we can use the operator &> to redirect both stdout and stderr. Thus, to redirect both the stderr and stdout output of any command to \dev\null (which deletes the output), we simply type $ command &> /dev/null or in case of my example:

$ (echo "stdout"; echo "stderror" >&2) &>/dev/null

Key takeaways:

• File descriptors behave like pointers (although file descriptors are not the same as file pointers)
• Redirecting a file descriptor "a" to a file descriptor "b" which points to file "f", causes file descriptor "a" to point to the same place as file descriptor b - file "f". It DOES NOT form a chain of pointers a -> b -> f
• Because of the above, order matters, 2>&1 >/dev/null is != >/dev/null 2>&1. One generates output and the other does not!

Finally have a look at these great resources:

Bash Documentation on Redirection, An Explanation of File Descriptor Tables, Introduction to Pointers

I have tried different kinds of maps and the Conversion Box worked. I have used your map and have pasted an example below with some inner maps. Hope it is helpful to you ....

import java.util.HashMap;
import java.util.Map;

import cjm.component.cb.map.ToMap;
import cjm.component.cb.xml.ToXML;

public class Testing
{
public static void main(String[] args)
{
    try
    {
        Map<String, Object> map = new HashMap<String, Object>(); // ORIGINAL MAP

        map.put("name", "chris");
        map.put("island", "faranga");

        Map<String, String> mapInner = new HashMap<String, String>(); // SAMPLE INNER MAP

        mapInner.put("a", "A");
        mapInner.put("b", "B");
        mapInner.put("c", "C");

        map.put("innerMap", mapInner);

        Map<String, Object> mapRoot = new HashMap<String, Object>(); // ROOT MAP

        mapRoot.put("ROOT", map);

        System.out.println("Map: " + mapRoot);

        System.out.println();

        ToXML toXML = new ToXML();

        String convertedXML = String.valueOf(toXML.convertToXML(mapRoot, true)); // CONVERTING ROOT MAP TO XML

        System.out.println("Converted XML: " + convertedXML);

        System.out.println();

        ToMap toMap = new ToMap();

        Map<String, Object> convertedMap = toMap.convertToMap(convertedXML); // CONVERTING CONVERTED XML BACK TO MAP

        System.out.println("Converted Map: " + convertedMap);
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
}
}

Output:

Map: {ROOT={name=chris, innerMap={b=B, c=C, a=A}, island=faranga}}

 -------- Map Detected -------- 
 -------- XML created Successfully -------- 
Converted XML: <ROOT><name>chris</name><innerMap><b>B</b><c>C</c><a>A</a></innerMap><island>faranga</island></ROOT>

 -------- XML Detected -------- 
 -------- Map created Successfully -------- 
Converted Map: {ROOT={name=chris, innerMap={b=B, c=C, a=A}, island=faranga}}

You are using Python 2 methodology instead of Python 3.

Change:

outfile=open('./immates.csv','wb')

To:

outfile=open('./immates.csv','w')

and you will get a file with the following output:

SNo,States,Dist,Population
1,Andhra Pradesh,13,49378776
2,Arunachal Pradesh,16,1382611
3,Assam,27,31169272
4,Bihar,38,103804637
5,Chhattisgarh,19,25540196
6,Goa,2,1457723
7,Gujarat,26,60383628
.....

In Python 3 csv takes the input in text mode, whereas in Python 2 it took it in binary mode.

Edited to Add

Here is the code I ran:

url='http://www.mapsofindia.com/districts-india/'
html = urllib.request.urlopen(url).read()
soup = BeautifulSoup(html)
table=soup.find('table', attrs={'class':'tableizer-table'})
list_of_rows=[]
for row in table.findAll('tr')[1:]:
    list_of_cells=[]
    for cell in row.findAll('td'):
        list_of_cells.append(cell.text)
    list_of_rows.append(list_of_cells)
outfile = open('./immates.csv','w')
writer=csv.writer(outfile)
writer.writerow(['SNo', 'States', 'Dist', 'Population'])
writer.writerows(list_of_rows)

Using a lambda you could do this (compiles in jdk lambda):

public static void main(String ars[]) {
        TransformService transformService = (inputs) -> {
            int[] ints = new int[inputs.size()];
            int i = 0;
            for (Integer element : inputs) {
                ints[ i++ ] = element;
            }
            return ints;
        };

        List<Integer> inputs = new ArrayList<Integer>(5) { {add(10); add(10);} };

        int[] results = transformService.transform(inputs);
    }

    public interface TransformService {
        int[] transform(List<Integer> inputs);
    }

Per the documentation from GitHub regarding GFM syntax highlighted code blocks

We use Linguist to perform language detection and syntax highlighting. You can find out which keywords are valid in the languages YAML file.

Rendered on GitHub, console makes the lines after the console blue. bash, sh, or shell don't seem to "highlight" much ...and you can use posh for PowerShell or CMD.

currentDay = '2019-12-06';
currentDay = new Date(currentDay).add(Date.DAY, +1).format('Y-m-d');

Just do:

Stream.of(stream1, stream2, Stream.of(element)).flatMap(identity());

where identity() is a static import of Function.identity().

Concatenating multiple streams into one stream is the same as flattening a stream.

However, unfortunately, for some reason there is no flatten() method on Stream, so you have to use flatMap() with the identity function.

If you try set a value in datetime-local

date("Y-m-d\TH:i",strtotime('2010-12-30 23:21:46'));

//output : 2010-12-30T23:21

I would recommend to use ampersand to have an access to named blocks within a function. Following the recommendations given in this article you can write something like this (this is a real scrap from my working program):

  # Returns a valid hash for html form select element, combined of all entities
  # for the given +model+, where only id and name attributes are taken as
  # values and keys correspondingly. Provide block returning boolean if you
  # need to select only specific entities.
  #
  # * *Args*    :
  #   - +model+ -> ORM interface for specific entities'
  #   - +&cond+ -> block {|x| boolean}, filtering entities upon iterations
  # * *Returns* :
  #   - hash of {entity.id => entity.name}
  #
  def make_select_list( model, &cond )
    cond ||= proc { true } # cond defaults to proc { true }
    # Entities filtered by cond, followed by filtration by (id, name)
    model.all.map do |x|
      cond.( x ) ? { x.id => x.name } : {}
    end.reduce Hash.new do |memo, e| memo.merge( e ) end
  end

Afterwerds, you can call this function like this:

@contests = make_select_list Contest do |contest|
  logged_admin? or contest.organizer == @current_user
end

If you don't need to filter your selection, you simply omit the block:

@categories = make_select_list( Category ) # selects all categories

So much for the power of Ruby blocks.

Virtual base classes, used in virtual inheritance, is a way of preventing multiple "instances" of a given class appearing in an inheritance hierarchy when using multiple inheritance.

Consider the following scenario:

class A { public: void Foo() {} };
class B : public A {};
class C : public A {};
class D : public B, public C {};

The above class hierarchy results in the "dreaded diamond" which looks like this:

  A
 / \
B   C
 \ /
  D

An instance of D will be made up of B, which includes A, and C which also includes A. So you have two "instances" (for want of a better expression) of A.

When you have this scenario, you have the possibility of ambiguity. What happens when you do this:

D d;
d.Foo(); // is this B's Foo() or C's Foo() ??

Virtual inheritance is there to solve this problem. When you specify virtual when inheriting your classes, you're telling the compiler that you only want a single instance.

class A { public: void Foo() {} };
class B : public virtual A {};
class C : public virtual A {};
class D : public B, public C {};

This means that there is only one "instance" of A included in the hierarchy. Hence

D d;
d.Foo(); // no longer ambiguous

This is a mini summary. For more information, have a read of this and this. A good example is also available here.

SQLAlchemy upsert for Postgres >=9.5

Since the large post above covers many different SQL approaches for Postgres versions (not only non-9.5 as in the question), I would like to add how to do it in SQLAlchemy if you are using Postgres 9.5. Instead of implementing your own upsert, you can also use SQLAlchemy's functions (which were added in SQLAlchemy 1.1). Personally, I would recommend using these, if possible. Not only because of convenience, but also because it lets PostgreSQL handle any race conditions that might occur.

Cross-posting from another answer I gave yesterday (https://stackoverflow.com/a/44395983/2156909)

SQLAlchemy supports ON CONFLICT now with two methods on_conflict_do_update() and on_conflict_do_nothing():

Copying from the documentation:

from sqlalchemy.dialects.postgresql import insert

stmt = insert(my_table).values(user_email='[email protected]', data='inserted data')
stmt = stmt.on_conflict_do_update(
    index_elements=[my_table.c.user_email],
    index_where=my_table.c.user_email.like('%@gmail.com'),
    set_=dict(data=stmt.excluded.data)
    )
conn.execute(stmt)

http://docs.sqlalchemy.org/en/latest/dialects/postgresql.html?highlight=conflict#insert-on-conflict-upsert

If you would like to add vector to itself both popular solutions will fail:

std::vector<std::string> v, orig;

orig.push_back("first");
orig.push_back("second");

// BAD:
v = orig;
v.insert(v.end(), v.begin(), v.end());
// Now v contains: { "first", "second", "", "" }

// BAD:
v = orig;
std::copy(v.begin(), v.end(), std::back_inserter(v));
// std::bad_alloc exception is generated

// GOOD, but I can't guarantee it will work with any STL:
v = orig;
v.reserve(v.size()*2);
v.insert(v.end(), v.begin(), v.end());
// Now v contains: { "first", "second", "first", "second" }

// GOOD, but I can't guarantee it will work with any STL:
v = orig;
v.reserve(v.size()*2);
std::copy(v.begin(), v.end(), std::back_inserter(v));
// Now v contains: { "first", "second", "first", "second" }

// GOOD (best):
v = orig;
v.insert(v.end(), orig.begin(), orig.end()); // note: we use different vectors here
// Now v contains: { "first", "second", "first", "second" }

Summary of answers and other data: (please add yours)

Do:

• Whenever you are referring to an exact moment in time, persist the time according to a unified standard that is not affected by daylight savings. (GMT and UTC are equivalent with this regard, but it is preferred to use the term UTC. Notice that UTC is also known as Zulu or Z time.)
• If instead you choose to persist a time using a local time value, include the local time offset for this particular time from UTC (this offset may change throughout the year), such that the timestamp can later be interpreted unambiguously.
• In some cases, you may need to store both the UTC time and the equivalent local time. Often this is done with two separate fields, but some platforms support a datetimeoffset type that can store both in a single field.
• When storing timestamps as a numeric value, use Unix time - which is the number of whole seconds since 1970-01-01T00:00:00Z (excluding leap seconds). If you require higher precision, use milliseconds instead. This value should always be based on UTC, without any time zone adjustment.
• If you might later need to modify the timestamp, include the original time zone ID so you can determine if the offset may have changed from the original value recorded.
• When scheduling future events, usually local time is preferred instead of UTC, as it is common for the offset to change. See answer, and blog post.
• When storing whole dates, such as birthdays and anniversaries, do not convert to UTC or any other time zone.
  • When possible, store in a date-only data type that does not include a time of day.
  • If such a type is not available, be sure to always ignore the time-of-day when interpreting the value. If you cannot be assured that the time-of-day will be ignored, choose 12:00 Noon, rather than 00:00 Midnight as a more safe representative time on that day.
• Remember that time zone offsets are not always an integer number of hours (for example, Indian Standard Time is UTC+05:30, and Nepal uses UTC+05:45).
• If using Java, use java.time for Java 8 and later.
  • Much of that java.time functionality is back-ported to Java 6 & 7 in the ThreeTen-Backport library.
  • Further adapted for early Android (< 26) in the ThreeTenABP library.
  • These projects officially supplant the venerable Joda-Time, now in maintenance-mode. Joda-Time, ThreeTen-Backport, ThreeTen-Extra, java.time classes, and JSR 310 are led by the same man, Stephen Colebourne.
• If using .NET, consider using Noda Time.
• If using .NET without Noda Time, consider that DateTimeOffset is often a better choice than DateTime.
• If using Perl, use DateTime.
• If using Python, use pytz or dateutil.
• If using JavaScript, use moment.js with the moment-timezone extension.
• If using PHP > 5.2, use the native time zones conversions provided by DateTime, and DateTimeZone classes. Be careful when using DateTimeZone::listAbbreviations() - see answer. To keep PHP with up to date Olson data, install periodically the timezonedb PECL package; see answer.
• If using C++, be sure to use a library that uses the properly implements the IANA timezone database. These include cctz, ICU, and Howard Hinnant's "tz" library.
  • Do not use Boost for time zone conversions. While its API claims to support standard IANA (aka "zoneinfo") identifiers, it crudely maps them to POSIX-style data, without considering the rich history of changes each zone may have had. (Also, the file has fallen out of maintenance.)
• If using Rust, use chrono.
• Most business rules use civil time, rather than UTC or GMT. Therefore, plan to convert UTC timestamps to a local time zone before applying application logic.
• Remember that time zones and offsets are not fixed and may change. For instance, historically US and UK used the same dates to 'spring forward' and 'fall back'. However, in 2007 the US changed the dates that the clocks get changed on. This now means that for 48 weeks of the year the difference between London time and New York time is 5 hours and for 4 weeks (3 in the spring, 1 in the autumn) it is 4 hours. Be aware of items like this in any calculations that involve multiple zones.
• Consider the type of time (actual event time, broadcast time, relative time, historical time, recurring time) what elements (timestamp, time zone offset and time zone name) you need to store for correct retrieval - see "Types of Time" in this answer.
• Keep your OS, database and application tzdata files in sync, between themselves and the rest of the world.
• On servers, set hardware clocks and OS clocks to UTC rather than a local time zone.
• Regardless of the previous bullet point, server-side code, including web sites, should never expect the local time zone of the server to be anything in particular. see answer.
• Prefer working with time zones on a case-by-case basis in your application code, rather than globally through config file settings or defaults.
• Use NTP services on all servers.
• If using FAT32, remember that timestamps are stored in local time, not UTC.
• When dealing with recurring events (weekly TV show, for example), remember that the time changes with DST and will be different across time zones.
• Always query date-time values as lower-bound inclusive, upper-bound exclusive (>=, <).

Don't:

• Do not confuse a "time zone", such as America/New_York with a "time zone offset", such as -05:00. They are two different things. See the timezone tag wiki.
• Do not use JavaScript's Date object to perform date and time calculations in older web browsers, as ECMAScript 5.1 and lower has a design flaw that may use daylight saving time incorrectly. (This was fixed in ECMAScript 6 / 2015).
• Never trust the client's clock. It may very well be incorrect.
• Don't tell people to "always use UTC everywhere". This widespread advice is shortsighted of several valid scenarios that are described earlier in this document. Instead, use the appropriate time reference for the data you are working with. (Timestamping can use UTC, but future time scheduling and date-only values should not.)

Testing:

• When testing, make sure you test countries in the Western, Eastern, Northern and Southern hemispheres (in fact in each quarter of the globe, so 4 regions), with both DST in progress and not (gives 8), and a country that does not use DST (another 4 to cover all regions, making 12 in total).
• Test transition of DST, i.e. when you are currently in summer time, select a time value from winter.
• Test boundary cases, such as a timezone that is UTC+12, with DST, making the local time UTC+13 in summer and even places that are UTC+13 in winter
• Test all third-party libraries and applications and make sure they handle time zone data correctly.
• Test half-hour time zones, at least.

Reference:

• The detailed timezone tag wiki page on Stack Overflow
• Olson database, aka Tz_database
• IETF draft procedures for maintaining the Olson database
• Sources for Time Zone and DST
• ISO format (ISO 8601)
• Mapping between Olson database and Windows Time Zone Ids, from the Unicode Consortium
• Time Zone page on Wikipedia
• StackOverflow questions tagged dst
• StackOverflow questions tagged timezone
• Dealing with DST - Microsoft DateTime best practices
• Network Time Protocol on Wikipedia

Other:

• Lobby your representative to end the abomination that is DST. We can always hope...
• Lobby for Earth Standard Time

In Python3 iteritems() is no longer supported

Use .items

for field, possible_values in fields.items():
    print(field, possible_values)

Break statement will break the whole loop and execute the code after loop and Return will not execute the code after that return statement and execute the loop with next increment.

Break

for(int i=0;i<5;i++){
    print(i)
    if(i==2)
    {
      break;
    }
}

output: 0 1

return

for(int i=0;i<5;i++)
{
   print(i)
   if(i==2)
   {
    return;
   }
}

output: 0 1 3 4

I had the exact same problem and found that Varan Sinayee's answer was the only one that actually solved the original question. That answer can be simplified though, so here's a simpler version.

The steps are:

1. Create a normal form (don't forget the method and enctype args since this is not handled by dropzone anymore).

2. Put a div inside with the class="dropzone" (that's how Dropzone attaches to it) and id="yourDropzoneName" (used to change the options).

3. Set Dropzone's options, to set the url where the form and files will be posted, deactivate autoProcessQueue (so it only happens when user presses 'submit') and allow multiple uploads (if you need it).

4. Set the init function to use Dropzone instead of the default behavior when the submit button is clicked.

5. Still in the init function, use the "sendingmultiple" event handler to send the form data along wih the files.

Voilà ! You can now retrieve the data like you would with a normal form, in $_POST and $_FILES (in the example this would happen in upload.php)

HTML

<form action="upload.php" enctype="multipart/form-data" method="POST">
    <input type="text" id ="firstname" name ="firstname" />
    <input type="text" id ="lastname" name ="lastname" />
    <div class="dropzone" id="myDropzone"></div>
    <button type="submit" id="submit-all"> upload </button>
</form>

JS

Dropzone.options.myDropzone= {
    url: 'upload.php',
    autoProcessQueue: false,
    uploadMultiple: true,
    parallelUploads: 5,
    maxFiles: 5,
    maxFilesize: 1,
    acceptedFiles: 'image/*',
    addRemoveLinks: true,
    init: function() {
        dzClosure = this; // Makes sure that 'this' is understood inside the functions below.

        // for Dropzone to process the queue (instead of default form behavior):
        document.getElementById("submit-all").addEventListener("click", function(e) {
            // Make sure that the form isn't actually being sent.
            e.preventDefault();
            e.stopPropagation();
            dzClosure.processQueue();
        });

        //send all the form data along with the files:
        this.on("sendingmultiple", function(data, xhr, formData) {
            formData.append("firstname", jQuery("#firstname").val());
            formData.append("lastname", jQuery("#lastname").val());
        });
    }
}

Try a regex with re.sub. You can search for all whitespace and replace with an empty string.

\s in your pattern will match whitespace characters - and not just a space (tabs, newlines, etc). You can read more about it in the manual.

I adapted one of the answers from the referenced question, but added the ability to define an explicit mapping for character names.

var char_names = {
    160:'nbsp',
    161:'iexcl',
    220:'Uuml',
    223:'szlig',
    196:'Auml',
    252:'uuml',
    };

function HTMLEncode(str){
     var aStr = str.split(''),
         i = aStr.length,
         aRet = [];

     while (--i >= 0) {
      var iC = aStr[i].charCodeAt();
       if (iC < 32 || (iC > 32 && iC < 65) || iC > 127 || (iC>90 && iC<97)) {
        if(char_names[iC]!=undefined) {
         aRet.push('&'+char_names[iC]+';');
        }
        else {
         aRet.push('&#'+iC+';');
        }
       } else {
        aRet.push(aStr[i]);
       }
    }
    return aRet.reverse().join('');
   }

var text = "Übergroße Äpfel mit Würmer";

alert(HTMLEncode(text));

Here's a pure jQuery solution, but it's rather messy:

var div_height = $(this).height();
var vertical_div_top_position = $(this).offset().top;
var lastchild_height = $(this).children('p:last-child').height();
var vertical_lastchild_top_position = $(this).children('p:last-child').offset().top;
var vertical_lastchild_bottom_position = lastchild_height + vertical_lastchild_top_position;
var real_height = vertical_lastchild_bottom_position - vertical_div_top_position;

if (real_height > div_height){
    //overflow div
}

If you are using Guava, you statically import newArrayList method from Lists class:

List<String> l = newArrayList(setOfAuthors);

I got the same error and couldn't solve it.

Then I noticed 3 extra files in one of my directories.

The files were named:

config, HEAD, description

I deleted the files, and the error didn't appear.

config contained:

[core]
    repositoryformatversion = 0
    filemode = true
    bare = true

HEAD contained:

ref: refs/heads/master

description contained:

Unnamed repository; edit this file 'description' to name the repository.

I opened up my Software & Updates program and switched from my country to the main servers like so:

After I done this and run the sudo apt update commando again, my problems where gone.

var matches = new Array();

var allDom = document.getElementsByTagName("*");
for(var i =0; i < allDom.length; i++){
    var d = allDom[i];
    if(d["data-foo"] !== undefined) {
         matches.push(d);
    }
}

Not sure who dinged me with a -1, but here's the proof.

http://jsfiddle.net/D798K/2/

Sometimes using row.getLastCellNum() gives you a higher value than what is actually filled in the file.
I used the method below to get the last column index that contains an actual value.

private int getLastFilledCellPosition(Row row) {
        int columnIndex = -1;

        for (int i = row.getLastCellNum() - 1; i >= 0; i--) {
            Cell cell = row.getCell(i);

            if (cell == null || CellType.BLANK.equals(cell.getCellType()) || StringUtils.isBlank(cell.getStringCellValue())) {
                continue;
            } else {
                columnIndex = cell.getColumnIndex();
                break;
            }
        }

        return columnIndex;
    }

Just for the record, I tried translating Dirk's answer into code :-P

temp <- tempfile()
download.file("http://www.newcl.org/data/zipfiles/a1.zip",temp)
con <- unz(temp, "a1.dat")
data <- matrix(scan(con),ncol=4,byrow=TRUE)
unlink(temp)

you can just do:

element.removeAttribute("style")

Try to use keyup.enter but make sure to use it inside your input tag

<input
  matInput
  placeholder="enter key word"
  [(ngModel)]="keyword"
  (keyup.enter)="addToKeywords()"
/>

To change bottom line color, you can use this in your app theme:

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>

    <item name="colorControlNormal">#c5c5c5</item>
    <item name="colorControlActivated">#ffe100</item>
    <item name="colorControlHighlight">#ffe100</item>
</style>

To change floating label color write following theme:

<style name="TextAppearence.App.TextInputLayout" parent="@android:style/TextAppearance">
<item name="android:textColor">#4ffd04[![enter image description here][1]][1]</item>
</style>

and use this theme in your layout:

 <android.support.design.widget.TextInputLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="20dp"
    app:hintTextAppearance="@style/TextAppearence.App.TextInputLayout">

    <EditText
        android:id="@+id/edtTxtFirstName_CompleteProfileOneActivity"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:capitalize="characters"
        android:hint="User Name"
        android:imeOptions="actionNext"
        android:inputType="text"
        android:singleLine="true"
        android:textColor="@android:color/white" />

</android.support.design.widget.TextInputLayout>

After entering the roles and users in tomcat-users still if does not work make sure your tomact server location point to the right server location

Using canvas to display Videos

Displaying a video is much the same as displaying an image. The minor differences are to do with onload events and the fact that you need to render the video every frame or you will only see one frame not the animated frames.

The demo below has some minor differences to the example. A mute function (under the video click mute/sound on to toggle sound) and some error checking to catch IE9+ and Edge if they don't have the correct drivers.

The previous answers by user372551 is out of date (December 2010) and has a flaw in the rendering technique used. It uses the setTimeout and a rate of 33.333..ms which setTimeout will round down to 33ms this will cause the frames to be dropped every two seconds and may drop many more if the video frame rate is any higher than 30. Using setTimeout will also introduce video shearing created because setTimeout can not be synced to the display hardware.

There is currently no reliable method that can determine a videos frame rate unless you know the video frame rate in advance you should display it at the maximum display refresh rate possible on browsers. 60fps

The given top answer was for the time (6 years ago) the best solution as requestAnimationFrame was not widely supported (if at all) but requestAnimationFrame is now standard across the Major browsers and should be used instead of setTimeout to reduce or remove dropped frames, and to prevent shearing.

The example demo.

Loads a video and set it to loop. The video will not play until the you click on it. Clicking again will pause. There is a mute/sound on button under the video. The video is muted by default.

Note users of IE9+ and Edge. You may not be able to play the video format WebM as it needs additional drivers to play the videos. They can be found at tools.google.com Download IE9+ WebM support

// This code is from the example document on stackoverflow documentation. See HTML for link to the example._x000D_
// This code is almost identical to the example. Mute has been added and a media source. Also added some error handling in case the media load fails and a link to fix IE9+ and Edge support._x000D_
// Code by Blindman67._x000D_
_x000D_
_x000D_
// Original source has returns 404_x000D_
// var mediaSource = "http://video.webmfiles.org/big-buck-bunny_trailer.webm";_x000D_
// New source from wiki commons. Attribution in the leading credits._x000D_
var mediaSource = "http://upload.wikimedia.org/wikipedia/commons/7/79/Big_Buck_Bunny_small.ogv"_x000D_
_x000D_
var muted = true;_x000D_
var canvas = document.getElementById("myCanvas"); // get the canvas from the page_x000D_
var ctx = canvas.getContext("2d");_x000D_
var videoContainer; // object to hold video and associated info_x000D_
var video = document.createElement("video"); // create a video element_x000D_
video.src = mediaSource;_x000D_
// the video will now begin to load._x000D_
// As some additional info is needed we will place the video in a_x000D_
// containing object for convenience_x000D_
video.autoPlay = false; // ensure that the video does not auto play_x000D_
video.loop = true; // set the video to loop._x000D_
video.muted = muted;_x000D_
videoContainer = {  // we will add properties as needed_x000D_
     video : video,_x000D_
     ready : false,   _x000D_
};_x000D_
// To handle errors. This is not part of the example at the moment. Just fixing for Edge that did not like the ogv format video_x000D_
video.onerror = function(e){_x000D_
    document.body.removeChild(canvas);_x000D_
    document.body.innerHTML += "<h2>There is a problem loading the video</h2><br>";_x000D_
    document.body.innerHTML += "Users of IE9+ , the browser does not support WebM videos used by this demo";_x000D_
    document.body.innerHTML += "<br><a href='https://tools.google.com/dlpage/webmmf/'> Download IE9+ WebM support</a> from tools.google.com<br> this includes Edge and Windows 10";_x000D_
    _x000D_
 }_x000D_
video.oncanplay = readyToPlayVideo; // set the event to the play function that _x000D_
                                  // can be found below_x000D_
function readyToPlayVideo(event){ // this is a referance to the video_x000D_
    // the video may not match the canvas size so find a scale to fit_x000D_
    videoContainer.scale = Math.min(_x000D_
                         canvas.width / this.videoWidth, _x000D_
                         canvas.height / this.videoHeight); _x000D_
    videoContainer.ready = true;_x000D_
    // the video can be played so hand it off to the display function_x000D_
    requestAnimationFrame(updateCanvas);_x000D_
    // add instruction_x000D_
    document.getElementById("playPause").textContent = "Click video to play/pause.";_x000D_
    document.querySelector(".mute").textContent = "Mute";_x000D_
}_x000D_
_x000D_
function updateCanvas(){_x000D_
    ctx.clearRect(0,0,canvas.width,canvas.height); _x000D_
    // only draw if loaded and ready_x000D_
    if(videoContainer !== undefined && videoContainer.ready){ _x000D_
        // find the top left of the video on the canvas_x000D_
        video.muted = muted;_x000D_
        var scale = videoContainer.scale;_x000D_
        var vidH = videoContainer.video.videoHeight;_x000D_
        var vidW = videoContainer.video.videoWidth;_x000D_
        var top = canvas.height / 2 - (vidH /2 ) * scale;_x000D_
        var left = canvas.width / 2 - (vidW /2 ) * scale;_x000D_
        // now just draw the video the correct size_x000D_
        ctx.drawImage(videoContainer.video, left, top, vidW * scale, vidH * scale);_x000D_
        if(videoContainer.video.paused){ // if not playing show the paused screen _x000D_
            drawPayIcon();_x000D_
        }_x000D_
    }_x000D_
    // all done for display _x000D_
    // request the next frame in 1/60th of a second_x000D_
    requestAnimationFrame(updateCanvas);_x000D_
}_x000D_
_x000D_
function drawPayIcon(){_x000D_
     ctx.fillStyle = "black";  // darken display_x000D_
     ctx.globalAlpha = 0.5;_x000D_
     ctx.fillRect(0,0,canvas.width,canvas.height);_x000D_
     ctx.fillStyle = "#DDD"; // colour of play icon_x000D_
     ctx.globalAlpha = 0.75; // partly transparent_x000D_
     ctx.beginPath(); // create the path for the icon_x000D_
     var size = (canvas.height / 2) * 0.5;  // the size of the icon_x000D_
     ctx.moveTo(canvas.width/2 + size/2, canvas.height / 2); // start at the pointy end_x000D_
     ctx.lineTo(canvas.width/2 - size/2, canvas.height / 2 + size);_x000D_
     ctx.lineTo(canvas.width/2 - size/2, canvas.height / 2 - size);_x000D_
     ctx.closePath();_x000D_
     ctx.fill();_x000D_
     ctx.globalAlpha = 1; // restore alpha_x000D_
}    _x000D_
_x000D_
function playPauseClick(){_x000D_
     if(videoContainer !== undefined && videoContainer.ready){_x000D_
          if(videoContainer.video.paused){                                 _x000D_
                videoContainer.video.play();_x000D_
          }else{_x000D_
                videoContainer.video.pause();_x000D_
          }_x000D_
     }_x000D_
}_x000D_
function videoMute(){_x000D_
    muted = !muted;_x000D_
 if(muted){_x000D_
         document.querySelector(".mute").textContent = "Mute";_x000D_
    }else{_x000D_
         document.querySelector(".mute").textContent= "Sound on";_x000D_
    }_x000D_
_x000D_
_x000D_
}_x000D_
// register the event_x000D_
canvas.addEventListener("click",playPauseClick);_x000D_
document.querySelector(".mute").addEventListener("click",videoMute)

body {_x000D_
    font :14px  arial;_x000D_
    text-align : center;_x000D_
    background : #36A;_x000D_
}_x000D_
h2 {_x000D_
    color : white;_x000D_
}_x000D_
canvas {_x000D_
    border : 10px white solid;_x000D_
    cursor : pointer;_x000D_
}_x000D_
a {_x000D_
  color : #F93;_x000D_
}_x000D_
.mute {_x000D_
    cursor : pointer;_x000D_
    display: initial;   _x000D_
}

<h2>Basic Video & canvas example</h2>_x000D_
<p>Code example from Stackoverflow Documentation HTML5-Canvas<br>_x000D_
<a href="https://stackoverflow.com/documentation/html5-canvas/3689/media-types-and-the-canvas/14974/basic-loading-and-playing-a-video-on-the-canvas#t=201607271638099201116">Basic loading and playing a video on the canvas</a></p>_x000D_
<canvas id="myCanvas" width = "532" height ="300" ></canvas><br>_x000D_
<h3><div id = "playPause">Loading content.</div></h3>_x000D_
<div class="mute"></div><br>_x000D_
<div style="font-size:small">Attribution in the leading credits.</div><br>

Canvas extras

Using the canvas to render video gives you additional options in regard to displaying and mixing in fx. The following image shows some of the FX you can get using the canvas. Using the 2D API gives a huge range of creative possibilities.

Image relating to answer Fade canvas video from greyscale to color

_{See video title in above demo for attribution of content in above inmage.}

Definitely resize the image, and check it's format if you can. There have been cases of malicious files being uploaded and served by unwitting hosts- for instance, the GIFAR vulnerability allowed you to hide a malicious java applet in a GIF file, which would then be able to read cookies in the current context and send them to another site for a cross-site scripting attack. Resizing the images usually prevents this, as it munges the embedded code. While this attack has been fixed by JVM patches, naively serving up binary files without scrubbing them opens you up to a whole range of vulnerabilities.

Remember, most virus scanners can only run against the filesystem- if you store your binaries in the DB, you won't be able to run a scanner against them very easily.

When I wanted reflection in C++ I read this article and improved upon what I saw there. Sorry, no can has. I don't own the result...but you can certainly get what I had and go from there.

I am currently researching, when I feel like it, methods to use inherit_linearly to make the definition of reflectable types much easier. I've gotten fairly far in it actually but I still have a ways to go. The changes in C++0x are very likely to be a lot of help in this area.

try $conn = mysql_connect("localhost", "root") or $conn = mysql_connect("localhost", "root", "")

You can use a simple HTML element <embed src="file.txt"> it loads the external resource and displays it on the screen no js needed

You don't need to convert NumPy array to Mat because OpenCV cv2 module can accept NumPyarray. The only thing you need to care for is that {0,1} is mapped to {0,255} and any value bigger than 1 in NumPy array is equal to 255. So you should divide by 255 in your code, as shown below.

img = numpy.zeros([5,5,3])

img[:,:,0] = numpy.ones([5,5])*64/255.0
img[:,:,1] = numpy.ones([5,5])*128/255.0
img[:,:,2] = numpy.ones([5,5])*192/255.0

cv2.imwrite('color_img.jpg', img)
cv2.imshow("image", img)
cv2.waitKey()

With the header function. There is an example in the section on the first parameter it takes.

Above answer is partially correct for me, but In my scenario, I want to set the value to a state, because I have used the value to show/toggle a modal. So I have used like below. Hope it will help someone.

class Child extends React.Component {
  state = {
    visible:false
  };

  handleCancel = (e) => {
      e.preventDefault();
      this.setState({ visible: false });
  };

  componentDidMount() {
    this.props.onRef(this)
  }

  componentWillUnmount() {
    this.props.onRef(undefined)
  }

  method() {
    this.setState({ visible: true });
  }

  render() {
    return (<Modal title="My title?" visible={this.state.visible} onCancel={this.handleCancel}>
      {"Content"}
    </Modal>)
  }
}

class Parent extends React.Component {
  onClick = () => {
    this.child.method() // do stuff
  }
  render() {
    return (
      <div>
        <Child onRef={ref => (this.child = ref)} />
        <button onClick={this.onClick}>Child.method()</button>
      </div>
    );
  }
}

Reference - https://github.com/kriasoft/react-starter-kit/issues/909#issuecomment-252969542

To dismiss a keyboard after the keyboard has popped up, there are 2 cases,

1. when the UITextField is inside a UIScrollView

2. when the UITextField is outside a UIScrollView

2.when the UITextField is outside a UIScrollView override the method in your UIViewController subclass

you must also add delegate for all UITextView

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    [self.view endEditing:YES];
}

1. In a scroll view, Tapping outside will not fire any event, so in that case use a Tap Gesture Recognizer, Drag and drop a UITapGesture for the scroll view and create an IBAction for it.

to create a IBAction, press ctrl+ click the UITapGesture and drag it to the .h file of viewcontroller.

Here I have named tappedEvent as my action name

- (IBAction)tappedEvent:(id)sender {
      [self.view endEditing:YES];  }

the abouve given Information was derived from the following link, please refer for more information or contact me if you dont understand the abouve data.

http://samwize.com/2014/03/27/dismiss-keyboard-when-tap-outside-a-uitextfield-slash-uitextview/

If you're pointing the config at a domain (eg fabrikam.com), do an NSLOOKUP to ensure all the responding IPs are valid, and can be connected to on port 389:

NSLOOKUP fabrikam.com

Test-NetConnection <IP returned from NSLOOKUP> -port 389

This is the most comprehensive solution I've tried so far:

const STANDARD_HTML_ENTITIES = {
    nbsp: String.fromCharCode(160),
    amp: "&",
    quot: '"',
    lt: "<",
    gt: ">"
};

const replaceHtmlEntities = plainTextString => {
    return plainTextString
        .replace(/&#(\d+);/g, (match, dec) => String.fromCharCode(dec))
        .replace(
            /&(nbsp|amp|quot|lt|gt);/g,
            (a, b) => STANDARD_HTML_ENTITIES[b]
        );
};

I have mixed feelings about the Cocotron project. I'm glad they are releasing source code and sharing but I don't feel that they are doing things the easiest way.

Examples.
Apple has released the source code to the objective-c runtime, which includes properties and garbage collection. The Cocotron project however has their own implementation of the objective-c runtime. Why bother to duplicate the effort? There is even a Visual Studio Project file that can be used to build an objc.dll file. Or if you're really lazy, you can just copy the DLL file from an installation of Safari on Windows.

They also did not bother to leverage CoreFoundation, which is also open sourced by Apple. I posted a question about this but did not receive an answer.

I think the current best solution is to take source code from multiple sources (Apple, CocoTron, GnuStep) and merge it together to what you need. You'll have to read a lot of source but it will be worth the end result.

code () {
    if [[ $# = 0 ]]
    then
        open -a "Visual Studio Code"
    else
        echo "Opening: "$@
        "/Applications/Visual Studio Code.app/Contents/MacOS/Electron" $@
    fi
}

I put that into my .bash_profile I tested it and it works.

As recommended qTip and other projects are quite old I recommend using qTip2 as it is most up-to-date.

I would stick with the $null check since any value other than '' (empty string), 0, $false and $null will pass the check: if ($ie) {...}.

? Splitting line in Python:

Have you tried using str.splitlines() method?:

• Python 2.X documentation here.
• Python 3.X documentation here.

From the docs:

str.splitlines([keepends])

Return a list of the lines in the string, breaking at line boundaries. Line breaks are not included in the resulting list unless keepends is given and true.

For example:

>>> 'Line 1\n\nLine 3\rLine 4\r\n'.splitlines()
['Line 1', '', 'Line 3', 'Line 4']

>>> 'Line 1\n\nLine 3\rLine 4\r\n'.splitlines(True)
['Line 1\n', '\n', 'Line 3\r', 'Line 4\r\n']

Which delimiters are considered?

This method uses the universal newlines approach to splitting lines.

The main difference between Python 2.X and Python 3.X is that the former uses the universal newlines approach to splitting lines, so "\r", "\n", and "\r\n" are considered line boundaries for 8-bit strings, while the latter uses a superset of it that also includes:

• \v or \x0b: Line Tabulation (added in Python 3.2).
• \f or \x0c: Form Feed (added in Python 3.2).
• \x1c: File Separator.
• \x1d: Group Separator.
• \x1e: Record Separator.
• \x85: Next Line (C1 Control Code).
• \u2028: Line Separator.
• \u2029: Paragraph Separator.

splitlines VS split:

Unlike str.split() when a delimiter string sep is given, this method returns an empty list for the empty string, and a terminal line break does not result in an extra line:

>>> ''.splitlines()
[]

>>> 'Line 1\n'.splitlines()
['Line 1']

While str.split('\n') returns:

>>> ''.split('\n')
['']

>>> 'Line 1\n'.split('\n')
['Line 1', '']

?? Removing additional whitespace:

If you also need to remove additional leading or trailing whitespace, like spaces, that are ignored by str.splitlines(), you could use str.splitlines() together with str.strip():

>>> [str.strip() for str in 'Line 1  \n  \nLine 3 \rLine 4 \r\n'.splitlines()]
['Line 1', '', 'Line 3', 'Line 4']

? Removing empty strings (''):

Lastly, if you want to filter out the empty strings from the resulting list, you could use filter():

>>> # Python 2.X:
>>> filter(bool, 'Line 1\n\nLine 3\rLine 4\r\n'.splitlines())
['Line 1', 'Line 3', 'Line 4']

>>> # Python 3.X:
>>> list(filter(bool, 'Line 1\n\nLine 3\rLine 4\r\n'.splitlines()))
['Line 1', 'Line 3', 'Line 4']

Additional comment regarding the original question:

As the error you posted indicates and Burhan suggested, the problem is from the print. There's a related question about that could be useful to you: UnicodeEncodeError: 'charmap' codec can't encode - character maps to <undefined>, print function

This expression 12-4-2005 is a calculated int and the value is -1997. You should do like this instead '2005-04-12' with the ' before and after.

Another way would be using:

myCursor.getCount();

on a Cursor like:

Cursor myCursor = db.query(table_Name, new String[] { row_Username }, 
row_Username + " =? AND " + row_Password + " =?",
new String[] { entered_Password, entered_Password }, 
null, null, null);

If you can think of getting away from the raw query.

You can do "redundant styling" and that should fix the issue. You use the same styling you have on the but add it to a that is within the .

Example:

<td width="110" align="center" valign="top" style="color:#000000;">
    <a href="https://example.com" target="_blank"
       style="color:#000000; text-decoration:none;"><span style="color:#000000; text-decoration:none;">BOOK NOW</span></a>
</td>

In order to activate the core dump do the following:

1. In /etc/profile comment the line:

   # ulimit -S -c 0 > /dev/null 2>&1
   

2. In /etc/security/limits.conf comment out the line:

   *               soft    core            0
   

3. execute the cmd limit coredumpsize unlimited and check it with cmd limit:

   # limit coredumpsize unlimited
   # limit
   cputime      unlimited
   filesize     unlimited
   datasize     unlimited
   stacksize    10240 kbytes
   coredumpsize unlimited
   memoryuse    unlimited
   vmemoryuse   unlimited
   descriptors  1024
   memorylocked 32 kbytes
   maxproc      528383
   #
   

4. to check if the corefile gets written you can kill the relating process with cmd kill -s SEGV <PID> (should not be needed, just in case no core file gets written this can be used as a check):

   # kill -s SEGV <PID>
   

Once the corefile has been written make sure to deactivate the coredump settings again in the relating files (1./2./3.) !

I believe this is exactly what you're looking for:

http://www.highcharts.com/demo/dynamic-update

Open source (although a license is required for commercial websites), cross device/browser, fast.

You can use Ellipsis yourself, in custom slicing situations like numpy has done, but it has no usage in any builtin class.

I don't know if it was added specifically for use in numpy, but I certainly haven't seen it used elsewhere.

See also: How do you use the ellipsis slicing syntax in Python?

For Powershell scripts

I have seen this problem multiple times while scheduling Powershell scripts with parameters on multiple Windows servers. The solution has always been to use the -File parameter:

1. Under "Actions" --> "Program / Script" Type: "Powershell"
2. Under "Add arguments", instead of just typeing "C:/script/test.ps1" use -File "C:/script/test.ps1"

Happy scheduling!

Above answers all assume that the object in question is an object with behaviour. An advanced strategy in OOP is to separate data objects (that do zip, only have fields) and behaviour objects.

With data objects, it is perfectly fine to omit getters and instead have public fields. They usually don't have setters, since they most commonly are immutable - their fields are set via the constructors, and never again. Have a look at Bob Martin's Clean Code or Pryce and Freeman's Growing OO Software... for details.

Well, the easiest solution would of course be to pipe the output into mail:

vs@lambda:~$ cat test.sh
sleep 3 && echo test | mail -s test your@address
vs@lambda:~$ nohup sh test.sh
nohup: ignoring input and appending output to `nohup.out'

I guess sh test.sh & will do just as fine normally.

    python 3.2


    >>>> from itertools import chain
    >>>> eg=sorted(list(set(list(chain(*eg)))), reverse=True)
        [7, 6, 5, 4, 3, 2, 1]


   ##### eg contain 2 list within a list. so if you want to use set() function
   you should flatten the list like [1, 2, 3, 4, 4, 5, 6, 7]

   >>> res= list(chain(*eg))       # [1, 2, 3, 4, 4, 5, 6, 7]                   
   >>> res1= set(res)                    #   [1, 2, 3, 4, 5, 6, 7]
   >>> res1= sorted(res1,reverse=True)

If you are allowing anonymous users as well as those logged in with email you can use firebase.auth().currentUser.isAnonymous, which will return either true or false.

MVP

MVP stands for Model - View- Presenter. This came to a picture in early 2007 where Microsoft introduced Smart Client windows applications.

A presenter is acting as a supervisory role in MVP which binding View events and business logic from models.

View event binding will be implemented in the Presenter from a view interface.

The view is the initiator for user inputs and then delegates the events to the Presenter and the presenter handles event bindings and gets data from models.

Pros: The view is having only UI not any logics High level of testability

Cons: Bit complex and more work when implementing event bindings

MVC

MVC stands for Model-View-Controller. Controller is responsible for creating models and rendering views with binding models.

Controller is the initiator and it decides which view to render.

Pros: Emphasis on Single Responsibility Principle High level of testability

Cons: Sometimes too much workload for Controllers, if try to render multiple views in same controller.

There is also a new option now in http://vimr.org/, which looks quite promising.

https://developer.apple.com/reference/foundation/userdefaults

A default object must be a property list—that is, an instance of (or for collections, a combination of instances of): NSData, NSString, NSNumber, NSDate, NSArray, or NSDictionary.

If you want to store any other type of object, you should typically archive it to create an instance of NSData. For more details, see Preferences and Settings Programming Guide.

' is not part of the HTML 4 standard.

" is, though, so is fine to use.