An application that I've found indispensible as an alternative is DTerm, which actually opens a mini terminal right in your application. Plus it works with just about everything out there - Finder, XCode, PhotoShop, etc.

UPDATING BENCHMARKS FOR 2016 (pg9.5+)

And using "pure SQL" benchmarks (without any external script)

1. use any string_generator with UTF8

2. main benchmarks:

   2.1. INSERT

   2.2. SELECT comparing and counting

CREATE FUNCTION string_generator(int DEFAULT 20,int DEFAULT 10) RETURNS text AS $f$
  SELECT array_to_string( array_agg(
    substring(md5(random()::text),1,$1)||chr( 9824 + (random()*10)::int )
  ), ' ' ) as s
  FROM generate_series(1, $2) i(x);
$f$ LANGUAGE SQL IMMUTABLE;

Prepare specific test (examples)

DROP TABLE IF EXISTS test;
-- CREATE TABLE test ( f varchar(500));
-- CREATE TABLE test ( f text); 
CREATE TABLE test ( f text  CHECK(char_length(f)<=500) );

Perform a basic test:

INSERT INTO test  
   SELECT string_generator(20+(random()*(i%11))::int)
   FROM generate_series(1, 99000) t(i);

And other tests,

CREATE INDEX q on test (f);

SELECT count(*) FROM (
  SELECT substring(f,1,1) || f FROM test WHERE f<'a0' ORDER BY 1 LIMIT 80000
) t;

... And use EXPLAIN ANALYZE.

UPDATED AGAIN 2018 (pg10)

little edit to add 2018's results and reinforce recommendations.

Results in 2016 and 2018

My results, after average, in many machines and many tests: all the same
(statistically less tham standard deviation).

Recommendation

• Use text datatype,
  avoid old varchar(x) because sometimes it is not a standard, e.g. in CREATE FUNCTION clauses varchar(x)?varchar(y).

• express limits (with same varchar performance!) by with CHECK clause in the CREATE TABLE
  e.g. CHECK(char_length(x)<=10).
  With a negligible loss of performance in INSERT/UPDATE you can also to control ranges and string structure
  e.g. CHECK(char_length(x)>5 AND char_length(x)<=20 AND x LIKE 'Hello%')

Here is working example in BDD style which is pretty simple and clear

given(carRepository.findByName(any(String.class))).willReturn(Optional.empty()).willReturn(Optional.of(MockData.createCarEntity()));

Solution is to change Delimiter.

Content of the csv file -> Note .. Also space and , in value

Values are 6 Dutch word aap,noot,mies,Piet, Gijs, Jan

Col1;Col2;Col3

a,ap;noo,t;mi es

P,iet;G ,ijs;Ja ,n



$csv = Import-Csv C:\TejaCopy.csv -Delimiter ';' 

Answer:

Write-Host $csv
@{Col1=a,ap; Col2=noo,t; Col3=mi es} @{Col1=P,iet; Col2=G ,ijs; Col3=Ja ,n}

It is possible to read a CSV file and use other Delimiter to separate each column.

It worked for my script :-)

Expanding on StanleyH's answer, and trying to find the minimum required, here is what I implemented:

JavaScript (called once from somewhere like $(document).ready()):

function doubleScroll(){
        $(".topScrollVisible").scroll(function(){
            $(".tableWrapper")
                .scrollLeft($(".topScrollVisible").scrollLeft());
        });
        $(".tableWrapper").scroll(function(){
            $(".topScrollVisible")
                .scrollLeft($(".tableWrapper").scrollLeft());
        });
}

HTML (note that the widths will change the scroll bar length):

<div class="topScrollVisible" style="overflow-x:scroll">
    <div class="topScrollTableLength" style="width:1520px; height:20px">
    </div>
</div>
<div class="tableWrapper" style="overflow:auto; height:100%;">
    <table id="myTable" style="width:1470px" class="myTableClass">
...
    </table>

That's it.

The nature and even existence of file extensions is platform-dependent (some obscure platforms don't even have them, remember) -- in other systems they're only conventional (UNIX and its ilk), while in still others they have definite semantics and in some cases specific limits on length or character content (Windows, etc.).

Since the maintainers have asked that you use ".yaml", that's as close to an "official" ruling as you can get, but the habit of 8.3 is hard to get out of (and, appallingly, still occasionally relevant in 2013).

See example.

/**
 * nv_get_plaintext()
 *
 * @param mixed $string
 * @return
 */
function nv_get_plaintext( $string, $keep_image = false, $keep_link = false )
{
    // Get image tags
    if( $keep_image )
    {
        if( preg_match_all( "/\<img[^\>]*src=\"([^\"]*)\"[^\>]*\>/is", $string, $match ) )
        {
            foreach( $match[0] as $key => $_m )
            {
                $textimg = '';
                if( strpos( $match[1][$key], 'data:image/png;base64' ) === false )
                {
                    $textimg = " " . $match[1][$key];
                }
                if( preg_match_all( "/\<img[^\>]*alt=\"([^\"]+)\"[^\>]*\>/is", $_m, $m_alt ) )
                {
                    $textimg .= " " . $m_alt[1][0];
                }
                $string = str_replace( $_m, $textimg, $string );
            }
        }
    }

    // Get link tags
    if( $keep_link )
    {
        if( preg_match_all( "/\<a[^\>]*href=\"([^\"]+)\"[^\>]*\>(.*)\<\/a\>/isU", $string, $match ) )
        {
            foreach( $match[0] as $key => $_m )
            {
                $string = str_replace( $_m, $match[1][$key] . " " . $match[2][$key], $string );
            }
        }
    }

    $string = str_replace( ' ', ' ', strip_tags( $string ) );
    return preg_replace( '/[ ]+/', ' ', $string );
}

Pure JS

you can attach a listener to keyUp event for the document.

Also, if you want to make sure, any other key is not pressed along with Esc key, you can use values of ctrlKey, altKey, and shifkey.

 document.addEventListener('keydown', (event) => {
        
        if (event.key === 'Escape') {
         //if esc key was not pressed in combination with ctrl or alt or shift
            const isNotCombinedKey = !(event.ctrlKey || event.altKey || event.shiftKey);
            if (isNotCombinedKey) {
                console.log('Escape key was pressed with out any group keys')
              
            }
        }
    });

import ast 
answer = subprocess.check_output(PYTHON_ + command, shell=True).strip()
    print(ast.literal_eval(answer.decode(UTF_)))

Works for me

If you are using Debian style virtual host configuration (sites-available/sites-enabled), one way to set a Default VirtualHost is to include the specific configuration file first in httpd.conf or apache.conf (or what ever is your main configuration file).

# To set default VirtualHost, include it before anything else.
IncludeOptional sites-enabled/my.site.com.conf

# Load config files in the "/etc/httpd/conf.d" directory, if any.
IncludeOptional conf.d/*.conf

# Load virtual host config files from "/etc/httpd/sites-enabled/".
IncludeOptional sites-enabled/*.conf

@Mayur "4.2 [Using query with complex JOIN]" with Common Table Expressions (CTEs) did the trick for me.

WITH cte AS (
SELECT e.id, e.postcode
FROM employees e
LEFT JOIN locations lc ON lc.postcode=cte.postcode
WHERE e.id=1
)
UPDATE employee_location SET lat=lc.lat, longitude=lc.longi
FROM cte
WHERE employee_location.id=cte.id;

Hope this helps... :D

You will not be able to find out the password he chose. However, you may create a new user or set a new password to the existing user.

Usually, you can login as the postgres user:

Open a Terminal and do sudo su postgres. Now, after entering your admin password, you are able to launch psql and do

CREATE USER yourname WITH SUPERUSER PASSWORD 'yourpassword';

This creates a new admin user. If you want to list the existing users, you could also do

\du

to list all users and then

ALTER USER yourusername WITH PASSWORD 'yournewpass';

There is a rule in Python programming called "it is Easier to Ask for Forgiveness than for Permission" (in short: EAFP). It means that you should catch exceptions instead of checking values for validity.

Thus, try the following:

try:
    qByUser = byUsrUrlObj.read()
    qUserData = json.loads(qByUser).decode('utf-8')
    questionSubjs = qUserData["all"]["questions"]
except ValueError:  # includes simplejson.decoder.JSONDecodeError
    print 'Decoding JSON has failed'

EDIT: Since simplejson.decoder.JSONDecodeError actually inherits from ValueError (proof here), I simplified the catch statement by just using ValueError.

I was looking for a different answer for the question title, so maybe other people will be too.

To set type as an ObjectId (so you may reference author as the author of book, for example), you may do like:

const Book = mongoose.model('Book', {
  author: {
    type: mongoose.Schema.Types.ObjectId, // here you set the author ID
                                          // from the Author colection, 
                                          // so you can reference it
    required: true
  },
  title: {
    type: String,
    required: true
  }
});

I prefer Verification and Permissions to Authentication and Authorization.

It is easier in my head and in my code to think of "verification" and "permissions" because the two words

• don't sound alike
• don't have the same abbreviation

Authentication is verification and Authorization is checking permission(s). Auth can mean either, but is used more often as "User Auth" i.e. "User Authentication"

Move pod members to a base class to shorten your initializer list:

struct foo_pod
{
    int x;
    int y;
    int z;
};

struct foo : foo_pod
{
    std::string name;
    foo(std::string name)
        : foo_pod()
        , name(name)
    {
    }
};

int main()
{
    foo f("bar");
    printf("%d %d %d %s\n", f.x, f.y, f.z, f.name.c_str());
}

If you cannot install aditional applications, then you can telnet (you will need to install this feature for your windows 7 by following this) the remote server:

TELNET server_name 80

followed by:

HEAD /virtual/directory/file.ext

or

GET /virtual/directory/file.ext

depending on if you want just the header (HEAD) or the full contents (GET)

Following the documentation of fopen:

``a'' Open for writing. The file is created if it does not exist. The stream is positioned at the end of the file. Subsequent writes to the file will always end up at the then cur- rent end of file, irrespective of any intervening fseek(3) or similar.

So if you pFile2=fopen("myfile2.txt", "a"); the stream is positioned at the end to append automatically. just do:

FILE *pFile;
FILE *pFile2;
char buffer[256];

pFile=fopen("myfile.txt", "r");
pFile2=fopen("myfile2.txt", "a");
if(pFile==NULL) {
    perror("Error opening file.");
}
else {
    while(fgets(buffer, sizeof(buffer), pFile)) {
        fprintf(pFile2, "%s", buffer);
    }
}
fclose(pFile);
fclose(pFile2);

This Worked for me.

$('#newpassword_field').attr("type", 'text');

There is one way to react to a kill -9: that is to have a separate process that monitors the process being killed and cleans up after it if necessary. This would probably involve IPC and would be quite a bit of work, and you can still override it by killing both processes at the same time. I assume it will not be worth the trouble in most cases.

Whoever kills a process with -9 should theoretically know what he/she is doing and that it may leave things in an inconsistent state.

This explains better: Postman docs

Request body

While constructing requests, you would be dealing with the request body editor a lot. Postman lets you send almost any kind of HTTP request (If you can't send something, let us know!). The body editor is divided into 4 areas and has different controls depending on the body type.

form-data

multipart/form-data is the default encoding a web form uses to transfer data. This simulates filling a form on a website, and submitting it. The form-data editor lets you set key/value pairs (using the key-value editor) for your data. You can attach files to a key as well. Do note that due to restrictions of the HTML5 spec, files are not stored in history or collections. You would have to select the file again at the time of sending a request.

urlencoded

This encoding is the same as the one used in URL parameters. You just need to enter key/value pairs and Postman will encode the keys and values properly. Note that you can not upload files through this encoding mode. There might be some confusion between form-data and urlencoded so make sure to check with your API first.

raw

A raw request can contain anything. Postman doesn't touch the string entered in the raw editor except replacing environment variables. Whatever you put in the text area gets sent with the request. The raw editor lets you set the formatting type along with the correct header that you should send with the raw body. You can set the Content-Type header manually as well. Normally, you would be sending XML or JSON data here.

binary

binary data allows you to send things which you can not enter in Postman. For example, image, audio or video files. You can send text files as well. As mentioned earlier in the form-data section, you would have to reattach a file if you are loading a request through the history or the collection.

UPDATE

As pointed out by VKK, the WHATWG spec say urlencoded is the default encoding type for forms.

The invalid value default for these attributes is the application/x-www-form-urlencoded state. The missing value default for the enctype attribute is also the application/x-www-form-urlencoded state.

OK - I had the same problem. I didn't want to use "config.assets.compile = true" - I had to add all of my .css files to the list in config/environments/production.rb:

config.assets.precompile += %w( carts.css )

Then I had to create (and later delete) tmp/restart.txt

I consistently used the stylesheet_link_tag helper, so I found all the extra css files I needed to add with:

find . \( -type f -o -type l \) -exec grep stylesheet_link_tag {} /dev/null \;

First you compile the regex, then you have to use it with match, find, or some other method to actually run it against some input.

import os
import re
import shutil

def test():
    os.chdir("C:/Users/David/Desktop/Test/MyFiles")
    files = os.listdir(".")
    os.mkdir("C:/Users/David/Desktop/Test/MyFiles2")
    pattern = re.compile(regex_txt, re.IGNORECASE)
    for x in (files):
        with open((x), 'r') as input_file:
            for line in input_file:
                if pattern.search(line):
                    shutil.copy(x, "C:/Users/David/Desktop/Test/MyFiles2")
                    break

Use compareTo(BigDecimal.ZERO) instead of equals():

if (price.compareTo(BigDecimal.ZERO) == 0) // see below

Comparing with the BigDecimal constant BigDecimal.ZERO avoids having to construct a new BigDecimal(0) every execution.

FYI, BigDecimal also has constants BigDecimal.ONE and BigDecimal.TEN for your convenience.

Note!

The reason you can't use BigDecimal#equals() is that it takes scale into consideration:

new BigDecimal("0").equals(BigDecimal.ZERO) // true
new BigDecimal("0.00").equals(BigDecimal.ZERO) // false!

so it's unsuitable for a purely numeric comparison. However, BigDecimal.compareTo() doesn't consider scale when comparing:

new BigDecimal("0").compareTo(BigDecimal.ZERO) == 0 // true
new BigDecimal("0.00").compareTo(BigDecimal.ZERO) == 0 // true

PROTIP:

The RMI port are opened at arbitrary portnr's. If you have a firewall and don't want to open ports 1024-65535 (or use vpn) then you need to do the following.

You need to fix (as in having a known number) the RMI Registry and JMX/RMI Server ports. You do this by putting a jar-file (catalina-jmx-remote.jar it's in the extra's) in the lib-dir and configuring a special listener under server:

<Listener className="org.apache.catalina.mbeans.JmxRemoteLifecycleListener"
      rmiRegistryPortPlatform="10001" rmiServerPortPlatform="10002" />

(And ofcourse the usual flags for activating JMX

    -Dcom.sun.management.jmxremote  \
    -Dcom.sun.management.jmxremote.ssl=false \
    -Dcom.sun.management.jmxremote.authenticate=false \
    -Djava.rmi.server.hostname=<HOSTNAME> \

See: JMX Remote Lifecycle Listener at http://tomcat.apache.org/tomcat-6.0-doc/config/listeners.html

Then you can connect using this horrific URL:

service:jmx:rmi://<hostname>:10002/jndi/rmi://<hostname>:10001/jmxrmi

In Visual Studio, go to the Tools menu, select Options, expand Source Control, (In a TFS environment, click Visual Studio Team Foundation Server), and click on the Configure User Tools button.

Click the Add button.

Enter/select the following options for Compare:

• Extension: .*
• Operation: Compare
• Command: C:\Program Files\Beyond Compare 3\BComp.exe (replace with the proper path for your machine, including version number)
• Arguments: %1 %2 /title1=%6 /title2=%7

If using Beyond Compare Professional (3-way Merge):

• Extension: .*
• Operation: Merge
• Command: C:\Program Files\Beyond Compare 3\BComp.exe (replace with the proper path for your machine, including version number)
• Arguments: %1 %2 %3 %4 /title1=%6 /title2=%7 /title3=%8 /title4=%9

If using Beyond Compare v3/v4 Standard or Beyond Compare v2 (2-way Merge):

• Extension: .*
• Operation: Merge
• Command: C:\Program Files\Beyond Compare 3\BComp.exe (replace with the proper path for your machine, including version number)
• Arguments: %1 %2 /savetarget=%4 /title1=%6 /title2=%7

If you use tabs in Beyond Compare

If you run Beyond Compare in tabbed mode, it can get confused when you diff or merge more than one set of files at a time from Visual Studio. To fix this, you can add the argument /solo to the end of the arguments; this ensures each comparison opens in a new window, working around the issue with tabs.

This might be extremely convoluted and I might be missing the obvious, but without OpenPyXL filling in the column_dimensions in Iterable Worksheets (see my comment above), the only way I can see of finding the column size without loading everything is to parse the xml directly:

from xml.etree.ElementTree import iterparse
from openpyxl import load_workbook
wb=load_workbook("/path/to/workbook.xlsx", use_iterators=True)
ws=wb.worksheets[0]
xml = ws._xml_source
xml.seek(0)

for _,x in iterparse(xml):

    name= x.tag.split("}")[-1]
    if name=="col":
        print "Column %(max)s: Width: %(width)s"%x.attrib # width = x.attrib["width"]

    if name=="cols":
        print "break before reading the rest of the file"
        break

Most of the answers are correct above. Just consolidating 3 which I found easy and super quick. Also #1 is not possible now in VS2019.

1. Visual Studio: Project > Properties > Build > Advanced
   This option is disabled now, and the default language is decided by VS itself. The detailed reason is available here.

2. Type "#error version" in the code(.cs) anywhere, mousehover it.

3. Go to 'Developer Command Prompt for Visual Studio' and run following command. csc -langversion:?

Read more tips: here.

Sub TestSave()
Application.Quit
ThisWorkBook.Close SaveChanges = False
End Sub

This seems to work for me, Even though looks like am quitting app before saving, but it saves...

The only solution that worked for me was this command :

docker-compose build --no-cache

This will automatically pull fresh image from repo and won't use the cache version that is prebuild with any parameters you've been using before.

It's already answered here -> Is my virtual environment (python) causing my PYTHONPATH to break?

UNIX/LINUX

Add "export PYTHONPATH=/usr/local/lib/python2.0" this to ~/.bashrc file and source it by typing "source ~/.bashrc" OR ". ~/.bashrc".

WINDOWS XP

1) Go to the Control panel 2) Double click System 3) Go to the Advanced tab 4) Click on Environment Variables

In the System Variables window, check if you have a variable named PYTHONPATH. If you have one already, check that it points to the right directories. If you don't have one already, click the New button and create it.

PYTHON CODE

Alternatively, you can also do below your code:-

import sys
sys.path.append("/home/me/mypy") 

If you get your dates from a database and do a for loop for each row and append it to a string to use in javascript to automagically populate datatables, it will need to look like this. Note that when using the hidden span trick, you need to account for the single digit numbers of the date like if its the 6th hour, you need to add a zero before it otherwise the span trick doesn't work in the sorting.. Example of code:

 DateTime getDate2 = Convert.ToDateTime(row["date"]);
 var hour = getDate2.Hour.ToString();
 if (hour.Length == 1)
 {
 hour = "0" + hour;
 }
 var minutes = getDate2.Minute.ToString();
 if (minutes.Length == 1)
 {
 minutes = "0" + minutes;
 }
 var year = getDate2.Year.ToString();
 var month = getDate2.Month.ToString();
 if (month.Length == 1)
 {
 month = "0" + month;
 }
 var day = getDate2.Day.ToString();
 if (day.Length == 1)
 {
 day = "0" + day;
 }
 var dateForSorting = year + month + day + hour + minutes; 
 dataFromDatabase.Append("<span style=\u0022display:none;\u0022>" + dateForSorting +
 </span>");

I could get solution for such a similar problem with addition of a simple line

HttpURLConnection hConn = (HttpURLConnection) url.openConnection();
hConn.setRequestMethod("HEAD");

My requirement was to know the response code and for that just getting the meta-information was sufficient, instead of getting the complete response body.

Default request method is GET and that was taking lot of time to return, finally throwing me SocketTimeoutException. The response was pretty fast when I set the Request Method to HEAD.

In short, it's because of the IE8 parsing engine.

Guess why Microsoft has trouble working with the new HTML5 tags (like "section") too? It's because MS decided that they will not use regular XML parsing, like the rest of the world. Yes, that's right - they did a ton of propaganda on XML but in the end, they fall back on a "stupid" parsing engine looking for "known tags" and messing stuff up when something new comes around.

Same goes for IE8 and the jquery issue with "load", "get" and "post". Again, Microsoft decided to "walk their own path" with version 8. Hoping that they solve(d) this in IE9, the only current option is to fall back on IE7 parsing with <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />.

Oh well... what a surprise that Microsoft made us post stuff on forums again. ;)

It seems that you want to use step parameter of range function. From documentation:

range(start, stop[, step]) This is a versatile function to create lists containing arithmetic progressions. It is most often used in for loops. The arguments must be plain integers. If the step argument is omitted, it defaults to 1. If the start argument is omitted, it defaults to 0. The full form returns a list of plain integers [start, start + step, start + 2 * step, ...]. If step is positive, the last element is the largest start + i * step less than stop; if step is negative, the last element is the smallest start + i * step greater than stop. step must not be zero (or else ValueError is raised). Example:

 >>> range(10) [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
 >>> range(1, 11) [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
 >>> range(0, 30, 5) [0, 5, 10, 15, 20, 25]
 >>> range(0, 10, 3) [0, 3, 6, 9]
 >>> range(0, -10, -1) [0, -1, -2, -3, -4, -5, -6, -7, -8, -9]
 >>> range(0) []
 >>> range(1, 0) []

In your case to get [0,2,4] you can use:

range(0,6,2)

OR in your case when is a var:

idx = None
for i in range(len(str1)):
    if idx and i < idx:
        continue
    for j in range(len(str2)):
        if str1[i+j] != str2[j]:
            break
    else:
        idx = i+j

This way you can handle the both cases - if the page is already loaded or not:

document.onreadystatechange = function(){
    if (document.readyState === "complete") {
       myFunction();
    }
    else {
       window.onload = function () {
          myFunction();
       };
    };
}

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Cnt extends CI_Controller {


 public function insert_view()
 {
  $this->load->view('insert');
 }
 public function insert_data(){
  $name=$this->input->post('emp_name');
  $salary=$this->input->post('emp_salary');
  $arr=array(
   'emp_name'=>$name,
   'emp_salary'=>$salary
   );
  $resp=$this->Model->insert_data('emp1',$arr);
  echo "<script>alert('$resp')</script>";
  $this->insert_view();  
 }
}

for more detail visit: http://wheretodownloadcodeigniter.blogspot.com/2018/04/insert-using-codeigniter.html

A unit test is a test written by the programmer to verify that a relatively small piece of code is doing what it is intended to do. They are narrow in scope, they should be easy to write and execute, and their effectiveness depends on what the programmer considers to be useful. The tests are intended for the use of the programmer, they are not directly useful to anybody else, though, if they do their job, testers and users downstream should benefit from seeing fewer bugs.

Part of being a unit test is the implication that things outside the code under test are mocked or stubbed out. Unit tests shouldn't have dependencies on outside systems. They test internal consistency as opposed to proving that they play nicely with some outside system.

An integration test is done to demonstrate that different pieces of the system work together. Integration tests can cover whole applications, and they require much more effort to put together. They usually require resources like database instances and hardware to be allocated for them. The integration tests do a more convincing job of demonstrating the system works (especially to non-programmers) than a set of unit tests can, at least to the extent the integration test environment resembles production.

Actually "integration test" gets used for a wide variety of things, from full-on system tests against an environment made to resemble production to any test that uses a resource (like a database or queue) that isn't mocked out. At the lower end of the spectrum an integration test could be a junit test where a repository is exercised against an in-memory database, toward the upper end it could be a system test verifying applications can exchange messages.

If your post keys have to be parsed and the keys are sequences with data, you can try this:

Post data example: Storeitem|14=data14

foreach($_POST as $key => $value){
    $key=Filterdata($key); $value=Filterdata($value);
    echo($key."=".$value."<br>");
}

then you can use strpos to isolate the end of the key separating the number from the key.

use this URL : "https://twitter.com/(userName)/profile_image?size=original"

If you are using TWitter SDK you can get the user name when logged in, with TWTRAPIClient, using TWTRAuthSession.

This is the code snipe for iOS:

if let twitterId = session.userID{
   let twitterClient = TWTRAPIClient(userID: twitterId)
   twitterClient.loadUser(withID: twitterId) {(user, error) in
       if let userName = user?.screenName{
          let url = "https://twitter.com/\(userName)/profile_image?size=original")
       }
   }
}

Erm, can you not just use Settings.Default.Reset() to restore your default settings?

I see that you've tagged this question with the google-spreadsheet-api tag. So by "drop-down" do you mean Google App Script's ListBox? If so, you may toggle a user's ability to select multiple items from the ListBox with a simple true/false value.
Here's an example:

`var lb = app.createListBox(true).setId('myId').setName('myLbName');` 

Notice that multiselect is enabled because of the word true.

They are completely different. is checks for object identity, while == checks for equality (a notion that depends on the two operands' types).

It is only a lucky coincidence that "is" seems to work correctly with small integers (e.g. 5 == 4+1). That is because CPython optimizes the storage of integers in the range (-5 to 256) by making them singletons. This behavior is totally implementation-dependent and not guaranteed to be preserved under all manner of minor transformative operations.

For example, Python 3.5 also makes short strings singletons, but slicing them disrupts this behavior:

>>> "foo" + "bar" == "foobar"
True
>>> "foo" + "bar" is "foobar"
True
>>> "foo"[:] + "bar" == "foobar"
True
>>> "foo"[:] + "bar" is "foobar"
False

would take time to route through TeamViewer's servers (TeamViewer bypasses corporate Symmetric NATs by simply proxying traffic through their servers)

You'll find that TeamViewer rarely needs to relay traffic through their own servers. TeamViewer penetrates NAT and networks complicated by NAT using NAT traversal (I think it is UDP hole-punching, like Google's libjingle).

They do use their own servers to middle-man in order to do the handshake and connection set-up, but most of the time the relationship between client and server will be P2P (best case, when the hand-shake is successful). If NAT traversal fails, then TeamViewer will indeed relay traffic through its own servers.

I've only ever seen it do this when a client has been behind double-NAT, though.

This view is visible.

button.setVisibility(View.VISIBLE);

This view is invisible, and it doesn't take any space for layout purposes.

button.setVisibility(View.GONE); 

But if you just want to make it invisible:

button.setVisibility(View.INVISIBLE);

...4 years later...

Here is an original solution with the framework Danf (you don't need any code for this kind of things, only some config):

// config/common/config/sequences.js

'use strict';

module.exports = {
    executeMySyncQueries: {
        operations: [
            {
                order: 0,
                service: 'danf:http.router',
                method: 'follow',
                arguments: [
                    'www.example.com/api_1.php',
                    'GET'
                ],
                scope: 'response1'
            },
            {
                order: 1,
                service: 'danf:http.router',
                method: 'follow',
                arguments: [
                    'www.example.com/api_2.php',
                    'GET'
                ],
                scope: 'response2'
            },
            {
                order: 2,
                service: 'danf:http.router',
                method: 'follow',
                arguments: [
                    'www.example.com/api_3.php',
                    'GET'
                ],
                scope: 'response3'
            }
        ]
    }
};

Use the same order value for operations you want to be executed in parallel.

If you want to be even shorter, you can use a collection process:

// config/common/config/sequences.js

'use strict';

module.exports = {
    executeMySyncQueries: {
        operations: [
            {
                service: 'danf:http.router',
                method: 'follow',
                // Process the operation on each item
                // of the following collection.
                collection: {
                    // Define the input collection.
                    input: [
                        'www.example.com/api_1.php',
                        'www.example.com/api_2.php',
                        'www.example.com/api_3.php'
                    ],
                    // Define the async method used.
                    // You can specify any collection method
                    // of the async lib.
                    // '--' is a shorcut for 'forEachOfSeries'
                    // which is an execution in series.
                    method: '--'
                },
                arguments: [
                    // Resolve reference '@@.@@' in the context
                    // of the input item.
                    '@@.@@',
                    'GET'
                ],
                // Set the responses in the property 'responses'
                // of the stream.
                scope: 'responses'
            }
        ]
    }
};

Take a look at the overview of the framework for more informations.

Make Rectangle a template and pass the typename on to Area:

template <typename T>
class Rectangle : public Area<T>
{

};

Take the case of two tables, Books and Orders. In case, we increase the number of books in a particular order with Order.ID = 1002 in Orders table then we also need to reduce that the total number of books available in our stock by the same number in Books table.

UPDATE Books, Orders
SET Orders.Quantity = Orders.Quantity + 2,
    Books.InStock = Books.InStock - 2
WHERE
    Books.BookID = Orders.BookID
    AND Orders.OrderID = 1002;

I just bumped into the same problem and I used the following solution (all from Package Manager Console)

PM> Enable-Migrations -MigrationsDirectory "Migrations\ContextA" -ContextTypeName MyProject.Models.ContextA
PM> Enable-Migrations -MigrationsDirectory "Migrations\ContextB" -ContextTypeName MyProject.Models.ContextB

This will create 2 separate folders in the Migrations folder. Each will contain the generated Configuration.cs file. Unfortunately you still have to rename those Configuration.cs files otherwise there will be complaints about having two of them. I renamed my files to ConfigA.cs and ConfigB.cs

EDIT: (courtesy Kevin McPheat) Remember when renaming the Configuration.cs files, also rename the class names and constructors /EDIT

With this structure you can simply do

PM> Add-Migration -ConfigurationTypeName ConfigA
PM> Add-Migration -ConfigurationTypeName ConfigB

Which will create the code files for the migration inside the folder next to the config files (this is nice to keep those files together)

PM> Update-Database -ConfigurationTypeName ConfigA
PM> Update-Database -ConfigurationTypeName ConfigB

And last but not least those two commands will apply the correct migrations to their corrseponding databases.

EDIT 08 Feb, 2016: I have done a little testing with EF7 version 7.0.0-rc1-16348

I could not get the -o|--outputDir option to work. It kept on giving Microsoft.Dnx.Runtime.Common.Commandline.CommandParsingException: Unrecognized command or argument

However it looks like the first time an migration is added it is added into the Migrations folder, and a subsequent migration for another context is automatically put into a subdolder of migrations.

The original names ContextA seems to violate some naming conventions so I now use ContextAContext and ContextBContext. Using these names you could use the following commands: (note that my dnx still works from the package manager console and I do not like to open a separate CMD window to do migrations)

PM> dnx ef migrations add Initial -c "ContextAContext"
PM> dnx ef migrations add Initial -c "ContextBContext"

This will create a model snapshot and a initial migration in the Migrations folder for ContextAContext. It will create a folder named ContextB containing these files for ContextBContext

I manually added a ContextA folder and moved the migration files from ContextAContext into that folder. Then I renamed the namespace inside those files (snapshot file, initial migration and note that there is a third file under the initial migration file ... designer.cs). I had to add .ContextA to the namespace, and from there the framework handles it automatically again.

Using the following commands would create a new migration for each context

PM>  dnx ef migrations add Update1 -c "ContextAContext"
PM>  dnx ef migrations add Update1 -c "ContextBContext"

and the generated files are put in the correct folders.

Try this regex

/(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/

It works best for me.

I am using Spring 3.2.4 and Jackson FasterXML 2.1.1.

I have created a custom JacksonObjectMapper that works with explicit annotations for each attribute of the Objects mapped:

package com.test;
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;

public class MyJaxbJacksonObjectMapper extends ObjectMapper {

public MyJaxbJacksonObjectMapper() {

    this.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY)
            .setVisibility(PropertyAccessor.CREATOR, JsonAutoDetect.Visibility.ANY)
            .setVisibility(PropertyAccessor.SETTER, JsonAutoDetect.Visibility.NONE)
            .setVisibility(PropertyAccessor.GETTER, JsonAutoDetect.Visibility.NONE)
            .setVisibility(PropertyAccessor.IS_GETTER, JsonAutoDetect.Visibility.NONE);

    this.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    }
}

Then this is instantiated in the context-configuration (servlet-context.xml):

<mvc:annotation-driven>
    <mvc:message-converters>

        <beans:bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
            <beans:property name="objectMapper">
                <beans:bean class="com.test.MyJaxbJacksonObjectMapper" />
            </beans:property>
        </beans:bean>

    </mvc:message-converters>
</mvc:annotation-driven>

This works fine!

I had the same in IIS 10.

I fixed it by importing the .pfx file using IIS manager.

Select server root (above the sites-node), click 'Server Certificates' in the right hand pane and import pfx there. Then I could select it from the dropdown when creating ssl binding for a website under sites

@echo off

rem Get start time:
for /F "tokens=1-4 delims=:.," %%a in ("%time%") do (
   set /A "start=(((%%a*60)+1%%b %% 100)*60+1%%c %% 100)*100+1%%d %% 100"
)

rem Any process here...

rem Get end time:
for /F "tokens=1-4 delims=:.," %%a in ("%time%") do (
   set /A "end=(((%%a*60)+1%%b %% 100)*60+1%%c %% 100)*100+1%%d %% 100"
)

rem Get elapsed time:
set /A elapsed=end-start

rem Show elapsed time:
set /A hh=elapsed/(60*60*100), rest=elapsed%%(60*60*100), mm=rest/(60*100), rest%%=60*100, ss=rest/100, cc=rest%%100
if %mm% lss 10 set mm=0%mm%
if %ss% lss 10 set ss=0%ss%
if %cc% lss 10 set cc=0%cc%
echo %hh%:%mm%:%ss%,%cc%

EDIT 2017-05-09: Shorter method added

I developed a shorter method to get the same result, so I couldn't resist to post it here. The two for commands used to separate time parts and the three if commands used to insert leading zeros in the result are replaced by two long arithmetic expressions, that could even be combined into a single longer line.

The method consists in directly convert a variable with a time in "HH:MM:SS.CC" format into the formula needed to convert the time to centiseconds, accordingly to the mapping scheme given below:

       HH        :      MM        :      SS        .       CC

(((10  HH  %%100)*60+1  MM  %%100)*60+1  SS  %%100)*100+1  CC  %%100

That is, insert (((10 at beginning, replace the colons by %%100)*60+1, replace the point by %%100)*100+1 and insert %%100 at end; finally, evaluate the resulting string as an arithmetic expression. In the time variable there are two different substrings that needs to be replaced, so the conversion must be completed in two lines. To get an elapsed time, use (endTime)-(startTime) expression and replace both time strings in the same line.

EDIT 2017/06/14: Locale independent adjustment added

EDIT 2020/06/05: Pass-over-midnight adjustment added

@echo off
setlocal EnableDelayedExpansion

set "startTime=%time: =0%"

set /P "=Any process here..."

set "endTime=%time: =0%"



rem Get elapsed time:
set "end=!endTime:%time:~8,1%=%%100)*100+1!"  &  set "start=!startTime:%time:~8,1%=%%100)*100+1!"
set /A "elap=((((10!end:%time:~2,1%=%%100)*60+1!%%100)-((((10!start:%time:~2,1%=%%100)*60+1!%%100), elap-=(elap>>31)*24*60*60*100"

rem Convert elapsed time to HH:MM:SS:CC format:
set /A "cc=elap%%100+100,elap/=100,ss=elap%%60+100,elap/=60,mm=elap%%60+100,hh=elap/60+100"

echo Start:    %startTime%
echo End:      %endTime%
echo Elapsed:  %hh:~1%%time:~2,1%%mm:~1%%time:~2,1%%ss:~1%%time:~8,1%%cc:~1%

You may review a detailed explanation of this method at this answer.

If you want n bits specific then you could first create a bitmask and then AND it with your number to take the desired bits.

Simple function to create mask from bit a to bit b.

unsigned createMask(unsigned a, unsigned b)
{
   unsigned r = 0;
   for (unsigned i=a; i<=b; i++)
       r |= 1 << i;

   return r;
}

You should check that a<=b.

If you want bits 12 to 16 call the function and then simply & (logical AND) r with your number N

r = createMask(12,16);
unsigned result = r & N;

If you want you can shift the result. Hope this helps

I got the above error message while trying to access a file from Internal Storage using openFileInput("/Dir/data.txt") method with subdirectory Dir.

You cannot access sub-directories using the above method.

Try something like:

FileInputStream fIS = new FileInputStream (new File("/Dir/data.txt"));

Use FUNCTION:

CREATE OR REPLACE FUNCTION test_function
RETURN VARCHAR2 IS

BEGIN
  RETURN 'This is being returned from a function';
END test_function;

try

var result = (35.8 / 100) * 10;

Thanks

log in as root user:

sudo su

password:

then go and do what you want to do in var/www

Since the question I asked has been seen many times I will provide a detailed answer of it. Feel free to modify it if you want to add more correct content.

First a recap on the question: frame, bounds and center and theirs relationships.

Frame A view's frame (CGRect) is the position of its rectangle in the superview's coordinate system. By default it starts at the top left.

Bounds A view's bounds (CGRect) expresses a view rectangle in its own coordinate system.

Center A center is a CGPoint expressed in terms of the superview's coordinate system and it determines the position of the exact center point of the view.

Taken from UIView + position these are the relationships (they don't work in code since they are informal equations) among the previous properties:

• frame.origin = center - (bounds.size / 2.0)

• center = frame.origin + (bounds.size / 2.0)

• frame.size = bounds.size

NOTE: These relationships do not apply if views are rotated. For further info, I will suggest you take a look at the following image taken from The Kitchen Drawer based on Stanford CS193p course. Credits goes to @Rhubarb.

Using the frame allows you to reposition and/or resize a view within its superview. Usually can be used from a superview, for example, when you create a specific subview. For example:

// view1 will be positioned at x = 30, y = 20 starting the top left corner of [self view]
// [self view] could be the view managed by a UIViewController
UIView* view1 = [[UIView alloc] initWithFrame:CGRectMake(30.0f, 20.0f, 400.0f, 400.0f)];    
view1.backgroundColor = [UIColor redColor];

[[self view] addSubview:view1];

When you need the coordinates to drawing inside a view you usually refer to bounds. A typical example could be to draw within a view a subview as an inset of the first. Drawing the subview requires to know the bounds of the superview. For example:

UIView* view1 = [[UIView alloc] initWithFrame:CGRectMake(50.0f, 50.0f, 400.0f, 400.0f)];    
view1.backgroundColor = [UIColor redColor];

UIView* view2 = [[UIView alloc] initWithFrame:CGRectInset(view1.bounds, 20.0f, 20.0f)];    
view2.backgroundColor = [UIColor yellowColor];

[view1 addSubview:view2];

Different behaviours happen when you change the bounds of a view. For example, if you change the bounds size, the frame changes (and vice versa). The change happens around the center of the view. Use the code below and see what happens:

NSLog(@"Old Frame %@", NSStringFromCGRect(view2.frame));
NSLog(@"Old Center %@", NSStringFromCGPoint(view2.center));    

CGRect frame = view2.bounds;
frame.size.height += 20.0f;
frame.size.width += 20.0f;
view2.bounds = frame;

NSLog(@"New Frame %@", NSStringFromCGRect(view2.frame));
NSLog(@"New Center %@", NSStringFromCGPoint(view2.center));

Furthermore, if you change bounds origin you change the origin of its internal coordinate system. By default the origin is at (0.0, 0.0) (top left corner). For example, if you change the origin for view1 you can see (comment the previous code if you want) that now the top left corner for view2 touches the view1 one. The motivation is quite simple. You say to view1 that its top left corner now is at the position (20.0, 20.0) but since view2's frame origin starts from (20.0, 20.0), they will coincide.

CGRect frame = view1.bounds;
frame.origin.x += 20.0f;
frame.origin.y += 20.0f;
view1.bounds = frame; 

The origin represents the view's position within its superview but describes the position of the bounds center.

Finally, bounds and origin are not related concepts. Both allow to derive the frame of a view (See previous equations).

View1's case study

Here is what happens when using the following snippet.

UIView* view1 = [[UIView alloc] initWithFrame:CGRectMake(30.0f, 20.0f, 400.0f, 400.0f)];
view1.backgroundColor = [UIColor redColor];

[[self view] addSubview:view1];

NSLog(@"view1's frame is: %@", NSStringFromCGRect([view1 frame]));
NSLog(@"view1's bounds is: %@", NSStringFromCGRect([view1 bounds]));
NSLog(@"view1's center is: %@", NSStringFromCGPoint([view1 center]));

The relative image.

This instead what happens if I change [self view] bounds like the following.

// previous code here...
CGRect rect = [[self view] bounds];
rect.origin.x += 30.0f;
rect.origin.y += 20.0f;
[[self view] setBounds:rect];

The relative image.

Here you say to [self view] that its top left corner now is at the position (30.0, 20.0) but since view1's frame origin starts from (30.0, 20.0), they will coincide.

Additional references (to update with other references if you want)

• UIView Geometry
• UIView Frames and Bounds

About clipsToBounds (source Apple doc)

Setting this value to YES causes subviews to be clipped to the bounds of the receiver. If set to NO, subviews whose frames extend beyond the visible bounds of the receiver are not clipped. The default value is NO.

In other words, if a view's frame is (0, 0, 100, 100) and its subview is (90, 90, 30, 30), you will see only a part of that subview. The latter won't exceed the bounds of the parent view.

masksToBounds is equivalent to clipsToBounds. Instead to a UIView, this property is applied to a CALayer. Under the hood, clipsToBounds calls masksToBounds. For further references take a look to How is the relation between UIView's clipsToBounds and CALayer's masksToBounds?.

Working Example to Put Your File on Root ...........see its very simple

#!/bin/sh
HOST='ftp.users.qwest.net'
USER='yourid'
PASSWD='yourpw'
FILE='file.txt'

ftp -n $HOST <<END_SCRIPT
quote USER $USER
quote PASS $PASSWD
put $FILE
quit
END_SCRIPT
exit 0

In regards to testing if a module you are utilizing is secure or not there are several routes you can take. I will touch on the pros/cons of each so you can make a more informed decision.

Currently, there aren't any vulnerabilities for the module you are utilizing, however, this can often lead to a false sense of security as there very well could be a vulnerability currently exploiting the module/software package you are using and you wouldn't be alerted to a problem until the vendor applies a fix/patch.

1. To keep abreast of vulnerabilities you will need to follow mailing lists, forums, IRC & other hacking related discussions. PRO: You can often times you will become aware of potential problems within a library before a vendor has been alerted or has issued a fix/patch to remedy the potential avenue of attack on their software. CON: This can be very time consuming and resource intensive. If you do go this route a bot using RSS feeds, log parsing (IRC chat logs) and or a web scrapper using key phrases (in this case node-mysql-native) and notifications can help reduce time spent trolling these resources.

2. Create a fuzzer, use a fuzzer or other vulnerability framework such as metasploit, sqlMap etc. to help test for problems that the vendor may not have looked for. PRO: This can prove to be a sure fire method of ensuring to an acceptable level whether or not the module/software you are implementing is safe for public access. CON: This also becomes time consuming and costly. The other problem will stem from false positives as well as uneducated review of the results where a problem resides but is not noticed.

Really security, and application security in general can be very time consuming and resource intensive. One thing managers will always use is a formula to determine the cost effectiveness (manpower, resources, time, pay etc) of performing the above two options.

Anyways, I realize this is not a 'yes' or 'no' answer that may have been hoping for but I don't think anyone can give that to you until they perform an analysis of the software in question.

I'm doing something like this

$url = https://en.example.com

$splitedBySlash = explode('/', $url);
$splitedByDot = explode('.', $splitedBySlash[2]);

$subdomain = $splitedByDot[0];

Using this shell command it will work:

SPRING_PROFILES_ACTIVE=test gradle clean bootRun

Sadly this is the simplest way I have found. It sets environment property for that call and then runs the app.

In my case with Eclipse IDE, I had the same problem and the solution was:
1- Install the latest available API (SDK Platform & Google APIs)
2- Create the project with the following settings:

• Compile With: use the latest API version available at the time
• the other values can receive values according at your requirements (look at the meaning of each one in previous comments)

I liked @AshOoO's answer but like @Rajan Rawal I needed to preserve selected item state, if any. So I added my customization to his method AddFirstItem()

public static SelectList AddFirstItem(SelectList origList, SelectListItem firstItem)
{
    List<SelectListItem> newList = origList.ToList();
    newList.Insert(0, firstItem);

    var selectedItem = newList.FirstOrDefault(item => item.Selected);
    var selectedItemValue = String.Empty;
    if (selectedItem != null)
    {
        selectedItemValue = selectedItem.Value;
    }

    return new SelectList(newList, "Value", "Text", selectedItemValue);
}

I suggest, you use the MaskedTextBox: http://msdn.microsoft.com/en-us/library/system.windows.forms.maskedtextbox.aspx

i wrote a simple function for this:

Function (stringVar param)
(
    Local stringVar oneChar := '0';
    Local numberVar strLen := Length(param);
    Local numberVar index := strLen;

    oneChar = param[strLen];

    while index > 0 and oneChar = '0' do
    (
        oneChar := param[index];
        index := index - 1;
    );

    Left(param , index + 1);
)

Using Linq to xml

Add a reference to System.Xml.Linq

and use

XDocument.Parse(string xmlString)

Edit: Sample follows, xml data (TestConfig.xml)..

<?xml version="1.0"?>
<Tests>
  <Test TestId="0001" TestType="CMD">
    <Name>Convert number to string</Name>
    <CommandLine>Examp1.EXE</CommandLine>
    <Input>1</Input>
    <Output>One</Output>
  </Test>
  <Test TestId="0002" TestType="CMD">
    <Name>Find succeeding characters</Name>
    <CommandLine>Examp2.EXE</CommandLine>
    <Input>abc</Input>
    <Output>def</Output>
  </Test>
  <Test TestId="0003" TestType="GUI">
    <Name>Convert multiple numbers to strings</Name>
    <CommandLine>Examp2.EXE /Verbose</CommandLine>
    <Input>123</Input>
    <Output>One Two Three</Output>
  </Test>
  <Test TestId="0004" TestType="GUI">
    <Name>Find correlated key</Name>
    <CommandLine>Examp3.EXE</CommandLine>
    <Input>a1</Input>
    <Output>b1</Output>
  </Test>
  <Test TestId="0005" TestType="GUI">
    <Name>Count characters</Name>
    <CommandLine>FinalExamp.EXE</CommandLine>
    <Input>This is a test</Input>
    <Output>14</Output>
  </Test>
  <Test TestId="0006" TestType="GUI">
    <Name>Another Test</Name>
    <CommandLine>Examp2.EXE</CommandLine>
    <Input>Test Input</Input>
    <Output>10</Output>
  </Test>
</Tests>

C# usage...

XElement root = XElement.Load("TestConfig.xml");
IEnumerable<XElement> tests =
    from el in root.Elements("Test")
    where (string)el.Element("CommandLine") == "Examp2.EXE"
    select el;
foreach (XElement el in tests)
    Console.WriteLine((string)el.Attribute("TestId"));

This code produces the following output: 0002 0006

gbk's solution in swift 3

PlayerView

import AVFoundation
import UIKit

class PlayerView: UIView {

override class var layerClass: AnyClass {
    return AVPlayerLayer.self
}

var player:AVPlayer? {
    set {
        if let layer = layer as? AVPlayerLayer {
            layer.player = player
        }
    }
    get {
        if let layer = layer as? AVPlayerLayer {
            return layer.player
        } else {
            return nil
        }
    }
}
}

VideoPlayer

import AVFoundation
import Foundation

protocol VideoPlayerDelegate {
    func downloadedProgress(progress:Double)
    func readyToPlay()
    func didUpdateProgress(progress:Double)
    func didFinishPlayItem()
    func didFailPlayToEnd()
}

let videoContext:UnsafeMutableRawPointer? = nil

class VideoPlayer : NSObject {



private var assetPlayer:AVPlayer?
private var playerItem:AVPlayerItem?
private var urlAsset:AVURLAsset?
private var videoOutput:AVPlayerItemVideoOutput?

private var assetDuration:Double = 0
private var playerView:PlayerView?

private var autoRepeatPlay:Bool = true
private var autoPlay:Bool = true

var delegate:VideoPlayerDelegate?

var playerRate:Float = 1 {
    didSet {
        if let player = assetPlayer {
            player.rate = playerRate > 0 ? playerRate : 0.0
        }
    }
}

var volume:Float = 1.0 {
    didSet {
        if let player = assetPlayer {
            player.volume = volume > 0 ? volume : 0.0
        }
    }
}

// MARK: - Init

convenience init(urlAsset: URL, view:PlayerView, startAutoPlay:Bool = true, repeatAfterEnd:Bool = true) {
    self.init()

    playerView = view
    autoPlay = startAutoPlay
    autoRepeatPlay = repeatAfterEnd

    if let playView = playerView, let playerLayer = playView.layer as? AVPlayerLayer {
        playerLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
    }
    initialSetupWithURL(url: urlAsset)
    prepareToPlay()
}

override init() {
    super.init()
}

// MARK: - Public

func isPlaying() -> Bool {
    if let player = assetPlayer {
        return player.rate > 0
    } else {
        return false
    }
}

func seekToPosition(seconds:Float64) {
    if let player = assetPlayer {
        pause()
        if let timeScale = player.currentItem?.asset.duration.timescale {
            player.seek(to: CMTimeMakeWithSeconds(seconds, timeScale), completionHandler: { (complete) in
                self.play()
            })
        }
    }
}

func pause() {
    if let player = assetPlayer {
        player.pause()
    }
}

func play() {
    if let player = assetPlayer {
        if (player.currentItem?.status == .readyToPlay) {
            player.play()
            player.rate = playerRate
        }
    }
}

func cleanUp() {
    if let item = playerItem {
        item.removeObserver(self, forKeyPath: "status")
        item.removeObserver(self, forKeyPath: "loadedTimeRanges")
    }
    NotificationCenter.default.removeObserver(self)
    assetPlayer = nil
    playerItem = nil
    urlAsset = nil
}

// MARK: - Private

private func prepareToPlay() {
    let keys = ["tracks"]
    if let asset = urlAsset {
        asset.loadValuesAsynchronously(forKeys: keys, completionHandler: {
            DispatchQueue.main.async {
                self.startLoading()
            }
        })
    }
}

private func startLoading(){
    var error:NSError?
    guard let asset = urlAsset else {return}
    let status:AVKeyValueStatus = asset.statusOfValue(forKey: "tracks", error: &error)

    if status == AVKeyValueStatus.loaded {
        assetDuration = CMTimeGetSeconds(asset.duration)

        let videoOutputOptions = [kCVPixelBufferPixelFormatTypeKey as String : Int(kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange)]
        videoOutput = AVPlayerItemVideoOutput(pixelBufferAttributes: videoOutputOptions)
        playerItem = AVPlayerItem(asset: asset)

        if let item = playerItem {
            item.addObserver(self, forKeyPath: "status", options: .initial, context: videoContext)
            item.addObserver(self, forKeyPath: "loadedTimeRanges", options: [.new, .old], context: videoContext)

            NotificationCenter.default.addObserver(self, selector: #selector(playerItemDidReachEnd), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: nil)
            NotificationCenter.default.addObserver(self, selector: #selector(didFailedToPlayToEnd), name: NSNotification.Name.AVPlayerItemFailedToPlayToEndTime, object: nil)

            if let output = videoOutput {
                item.add(output)

                item.audioTimePitchAlgorithm = AVAudioTimePitchAlgorithmVarispeed
                assetPlayer = AVPlayer(playerItem: item)

                if let player = assetPlayer {
                    player.rate = playerRate
                }

                addPeriodicalObserver()
                if let playView = playerView, let layer = playView.layer as? AVPlayerLayer {
                    layer.player = assetPlayer
                    print("player created")
                }
            }
        }
    }
}

private func addPeriodicalObserver() {
    let timeInterval = CMTimeMake(1, 1)

    if let player = assetPlayer {
        player.addPeriodicTimeObserver(forInterval: timeInterval, queue: DispatchQueue.main, using: { (time) in
            self.playerDidChangeTime(time: time)
        })
    }
}

private func playerDidChangeTime(time:CMTime) {
    if let player = assetPlayer {
        let timeNow = CMTimeGetSeconds(player.currentTime())
        let progress = timeNow / assetDuration

        delegate?.didUpdateProgress(progress: progress)
    }
}

@objc private func playerItemDidReachEnd() {
    delegate?.didFinishPlayItem()

    if let player = assetPlayer {
        player.seek(to: kCMTimeZero)
        if autoRepeatPlay == true {
            play()
        }
    }
}

@objc private func didFailedToPlayToEnd() {
    delegate?.didFailPlayToEnd()
}

private func playerDidChangeStatus(status:AVPlayerStatus) {
    if status == .failed {
        print("Failed to load video")
    } else if status == .readyToPlay, let player = assetPlayer {
        volume = player.volume
        delegate?.readyToPlay()

        if autoPlay == true && player.rate == 0.0 {
            play()
        }
    }
}

private func moviewPlayerLoadedTimeRangeDidUpdated(ranges:Array<NSValue>) {
    var maximum:TimeInterval = 0
    for value in ranges {
        let range:CMTimeRange = value.timeRangeValue
        let currentLoadedTimeRange = CMTimeGetSeconds(range.start) + CMTimeGetSeconds(range.duration)
        if currentLoadedTimeRange > maximum {
            maximum = currentLoadedTimeRange
        }
    }
    let progress:Double = assetDuration == 0 ? 0.0 : Double(maximum) / assetDuration

    delegate?.downloadedProgress(progress: progress)
}

deinit {
    cleanUp()
}

private func initialSetupWithURL(url: URL) {
    let options = [AVURLAssetPreferPreciseDurationAndTimingKey : true]
    urlAsset = AVURLAsset(url: url, options: options)
}

// MARK: - Observations

override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
    if context == videoContext {
        if let key = keyPath {
            if key == "status", let player = assetPlayer {
                playerDidChangeStatus(status: player.status)
            } else if key == "loadedTimeRanges", let item = playerItem {
                moviewPlayerLoadedTimeRangeDidUpdated(ranges: item.loadedTimeRanges)
            }
        }
    }
}
}

There isn't any in printf - the two are synonyms.

Generating a random string of characters is easy - just use java.util.Random and a string containing all the characters you want to be available, e.g.

public static String generateString(Random rng, String characters, int length)
{
    char[] text = new char[length];
    for (int i = 0; i < length; i++)
    {
        text[i] = characters.charAt(rng.nextInt(characters.length()));
    }
    return new String(text);
}

Now, for uniqueness you'll need to store the generated strings somewhere. How you do that will really depend on the rest of your application.

You could just try the scandir(Path) function. it is fast and easy to implement

Syntax:

$files = scandir("somePath");

This Function returns a list of file into an Array.

to view the result, you can try

var_dump($files);

Or

foreach($files as $file)
{ 
echo $file."< br>";
} 

SELECT *
FROM permlog
WHERE id = ( SELECT MAX(id) FROM permlog ) ;

This would return all rows with highest id, in case id column is not constrained to be unique.

There's also the online viewers:
http://www.webgraphviz.com/
http://sandbox.kidstrythisathome.com/erdos/
http://viz-js.com/

I just got the same error after I upgraded to 10.14 Mojave and had to reinstall command line tools (I don't use the full Xcode IDE and wanted command line tools a la carte).

My xcode-select -p path was right, per Basav's answer, so that wasn't the issue.

I also ran sudo softwareupdate --clear-catalog per Lambda W's answer and that reset to Apple Production, but did not make a difference.

What worked was User 92's answer to visit https://developer.apple.com/download/more/.

From there I was able to download a .dmg file that had a GUI installer wizard for command line tools :)

I installed that, then I restarted terminal and everything was back to normal.

I had the same problem today and it costed me all day :-( I tried all of the suggestions above, but none of them did the work.

At the end, I uninstalled Comodo Firewall, and everything worked fine. Before uninstalling, I tried to add the all relevant files as trusted application in the comodo firewall, but it didn't work

I do understand, that your question was about files stored in MEDIA_ROOT, but sometimes it can be possible to store content in static, when you are not planning to create content of that type anymore.
May be this is a rare case, but anyway - if you have a huge amount of "pictures of the day" for your site - and all these files are on your hard drive?

In that case I see no contra to store such a content in STATIC.
And all becomes really simple:

static

To link to static files that are saved in STATIC_ROOT Django ships with a static template tag. You can use this regardless if you're using RequestContext or not.

{% load static %} <img src="{% static "images/hi.jpg" %}" alt="Hi!" />

copied from Official django 1.4 documentation / Built-in template tags and filters

A fast-forward update is where the only changes one one side are after the most recent commit on the other side, so there doesn't need to be any merging. This is saying that you need to merge your changes before you can push.

//Runs function after x seconds

public static func runThisAfterDelay(seconds: Double, after: @escaping () -> Void) {
    runThisAfterDelay(seconds: seconds, queue: DispatchQueue.main, after: after)
}

public static func runThisAfterDelay(seconds: Double, queue: DispatchQueue, after: @escaping () -> Void) {
    let time = DispatchTime.now() + Double(Int64(seconds * Double(NSEC_PER_SEC))) / Double(NSEC_PER_SEC)
    queue.asyncAfter(deadline: time, execute: after)
}

//Use:-

runThisAfterDelay(seconds: x){
  //write your code here
}

For example String.Format("{0:0,0}", 1); returns 01, for me is not valid

This works for me

19950000.ToString("#,#", CultureInfo.InvariantCulture));

output 19,950,000

this is a bit late.. but i have seen this problem occurs when you want to insert or delete one line from/to DB but u put/pull more than one line or more than one value ,

E.g:

you want to delete one line from DB with a specific value such as id of an item but you've queried a list of ids then you will encounter the same exception message.

regards.

According to the documentation NUM_ROWS is the "Number of rows in the table", so I can see how this might be confusing. There, however, is a major difference between these two methods.

This query selects the number of rows in MY_TABLE from a system view. This is data that Oracle has previously collected and stored.

select num_rows from all_tables where table_name = 'MY_TABLE'

This query counts the current number of rows in MY_TABLE

select count(*) from my_table

By definition they are difference pieces of data. There are two additional pieces of information you need about NUM_ROWS.

1. In the documentation there's an asterisk by the column name, which leads to this note:

   Columns marked with an asterisk (*) are populated only if you collect statistics on the table with the ANALYZE statement or the DBMS_STATS package.

   This means that unless you have gathered statistics on the table then this column will not have any data.

2. Statistics gathered in 11g+ with the default estimate_percent, or with a 100% estimate, will return an accurate number for that point in time. But statistics gathered before 11g, or with a custom estimate_percent less than 100%, uses dynamic sampling and may be incorrect. If you gather 99.999% a single row may be missed, which in turn means that the answer you get is incorrect.

If your table is never updated then it is certainly possible to use ALL_TABLES.NUM_ROWS to find out the number of rows in a table. However, and it's a big however, if any process inserts or deletes rows from your table it will be at best a good approximation and depending on whether your database gathers statistics automatically could be horribly wrong.

Generally speaking, it is always better to actually count the number of rows in the table rather then relying on the system tables.

I would do it like this:

my $file = "index.html";
my $document = do {
    local $/ = undef;
    open my $fh, "<", $file
        or die "could not open $file: $!";
    <$fh>;
};

Note the use of the three-argument version of open. It is much safer than the old two- (or one-) argument versions. Also note the use of a lexical filehandle. Lexical filehandles are nicer than the old bareword variants, for many reasons. We are taking advantage of one of them here: they close when they go out of scope.

Use the following instead:

boost::function<void (int)> f2( boost::bind( &myclass::fun2, this, _1 ) );

This forwards the first parameter passed to the function object to the function using place-holders - you have to tell Boost.Bind how to handle the parameters. With your expression it would try to interpret it as a member function taking no arguments.
See e.g. here or here for common usage patterns.

Note that VC8s cl.exe regularly crashes on Boost.Bind misuses - if in doubt use a test-case with gcc and you will probably get good hints like the template parameters Bind-internals were instantiated with if you read through the output.

Another approach

=CONCATENATE("Age as of ", TEXT(TODAY(),"dd-mmm-yyyy"))

This will return Age as of 06-Aug-2013

window.location = appurl;// fb://method/call..
!window.document.webkitHidden && setTimeout(function () {
    setTimeout(function () {
    window.location = weburl; // http://itunes.apple.com/..
    }, 100);
}, 600);

document.webkitHidden is to detect if your app is already invoked and current safari tab to going to the background, this code is from www.baidu.com

I have resolved it by deleting android-support-v4.jar from my Project. Because appcompat_v7 already have a copy of it.

If you have already import appcompat_v7 but still the problem doesn't solve. then try it.

Select count(created_date) total
     , created_dt
  from table
group by created_date
order by created_date desc

Get the current URL including the query string.

echo url()->full();

Assuming you're using winforms, default panel components does not offer you a way to disable the horizontal scrolling components. A workaround of this is to disable the auto scrolling and add a scrollbar yourself:

ScrollBar vScrollBar1 = new VScrollBar();
vScrollBar1.Dock = DockStyle.Right;
vScrollBar1.Scroll += (sender, e) => { panel1.VerticalScroll.Value = vScrollBar1.Value; };
panel1.Controls.Add(vScrollBar1);

Detailed discussion here.

//an easy way:
str := fmt.Sprint(data)

In FF also CSS filter works fine. E.g. hue-rotate:

option {
    filter: hue-rotate(90deg);
}

https://jsfiddle.net/w3a740jq/4/

you have to tell git where to pull from, in this case from the current directory/repository:

git pull . master

but when working locally, you usually just call merge (pull internally calls merge):

git merge master

1) If you are limited to the double precision, one reason to use BigDecimals is to realize operations with the BigDecimals created from the doubles.

2) The BigDecimal consists of an arbitrary precision integer unscaled value and a non-negative 32-bit integer scale, while the double wraps a value of the primitive type double in an object. An object of type Double contains a single field whose type is double

3) It should make no difference

You should have no difficulties with the $ and precision. One way to do it is using System.out.printf

string input = "America.USA"
string output = input.Substring(input.IndexOf('.') + 1);

There is a Hidden helper alongside HiddenFor which lets you set the value.

@Html.Hidden("RequiredProperty", "default")

EDIT Based on the edit you've made to the question, you could do this, but I believe you're moving into territory where it will be cheaper and more effective, in the long run, to fight for making the code change. As has been said, even by yourself, the controller or view model should be setting the default.

This code:

<ul>
@{
        var stacks = new System.Diagnostics.StackTrace().GetFrames();
        foreach (var frame in stacks)
        {
            <li>@frame.GetMethod().Name - @frame.GetMethod().DeclaringType</li>
        }
}
</ul>

Will give output like this:

Execute - ASP._Page_Views_ViewDirectoryX__SubView_cshtml
ExecutePageHierarchy - System.Web.WebPages.WebPageBase
ExecutePageHierarchy - System.Web.Mvc.WebViewPage
ExecutePageHierarchy - System.Web.WebPages.WebPageBase
RenderView - System.Web.Mvc.RazorView
Render - System.Web.Mvc.BuildManagerCompiledView
RenderPartialInternal - System.Web.Mvc.HtmlHelper
RenderPartial - System.Web.Mvc.Html.RenderPartialExtensions
Execute - ASP._Page_Views_ViewDirectoryY__MainView_cshtml

So assuming the MVC framework will always go through the same stack, you can grab var frame = stacks[8]; and use the declaring type to determine who your parent view is, and then use that determination to set (or not) the default value. You could also walk the stack instead of directly grabbing [8] which would be safer but even less efficient.

If you have GNU extensions, you can use sed's \L (lower entire match, or until \L [lower] or \E [end - toggle casing off] is reached), like so:

sed 's/.*/\L&/' <input >output

Note: '&' means the full match pattern.

As a side note, GNU extensions include \U (upper), \u (upper next character of match), \l (lower next character of match). For example, if you wanted to camelcase a sentence:

$ sed -r 's/\w+/\u&/g' <<< "Now is the time for all good men..." # Camel Case
Now Is The Time For All Good Men...

Note: Since the assumption is we have GNU extensions, we can also use the dash-r (extended regular expressions) option, which allows \w (word character) and relieves you of having to escape the capturing parenthesis and one-or-more quantifier (+). (Aside: \W [non-word], \s [whitespace], \S [non-whitespace] are also supported with dash-r, but \d [digit] and \D [non-digit] are not.)

I had the same problem and fixed it by adding "mousedown touchstart"

$(document).on("mousedown touchstart", ".className", function() { // your code here });

inested of others

You may be able to query this from the ALL_CONSTRAINTS view:

SELECT table_name
FROM ALL_CONSTRAINTS
WHERE constraint_type = 'R' -- "Referential integrity"
  AND r_constraint_name IN
    ( SELECT constraint_name
      FROM ALL_CONSTRAINTS
      WHERE table_name = 'EMP'
        AND constraint_type IN ('U', 'P') -- "Unique" or "Primary key"
    );

I will hijack this thread to point out that this error may also happen when target of Popen is not executable. Learnt it hard way when by accident I have had override a perfectly executable binary file with zip file.

jQuery(document).ready(function(){
   jQuery(".head h3").html('Public Offers');
});

I need to do the same thing for a project I am currently working on. Here is how I solved things:

/* Prompt user for input */
printf("Enter a number: ");

/* Read user input */
char input[255]; //Of course, you can choose a different input size
fgets(input, sizeof(input), stdin);

/* Strip trailing newline */
size_t ln = strlen(input) - 1;
if( input[ln] == '\n' ) input[ln] = '\0';

/* Ensure that input is a number */
for( size_t i = 0; i < ln; i++){
    if( !isdigit(input[i]) ){
        fprintf(stderr, "%c is not a number. Try again.\n", input[i]);
        getInput(); //Assuming this is the name of the function you are using
        return;
    }
}

You can also create a new jsp file sayng that form is submited and in your main action file just write its file name

Eg. Your form is submited is in a file succes.jsp Then your action file will have

Request.sendRedirect("success.jsp")

Try my favorite: put in

~/.zshrc

this line:

PROMPT='%F{240}%n%F{red}@%F{green}%m:%F{141}%d$ %F{reset}'

don't forget

source ~/.zshrc

to test the changes

you can change the colors/color codes, of course :-)

Complete the following steps in Eclipse to get plugins for JavaScript files:

1. Open Eclipse -> Go to "Help" -> "Install New Software"
2. Select the repository for your version of Eclipse. I have Juno so I selected http://download.eclipse.org/releases/juno
3. Expand "Programming Languages" -> Check the box next to "JavaScript Development Tools"
4. Click "Next" -> "Next" -> Accept the Terms of the License Agreement -> "Finish"
5. Wait for the software to install, then restart Eclipse (by clicking "Yes" button at pop up window)
6. Once Eclipse has restarted, open "Window" -> "Preferences" -> Expand "General" and "Editors" -> Click "File Associations" -> Add ".js" to the "File types:" list, if it is not already there
7. In the same "File Associations" dialog, click "Add" in the "Associated editors:" section
8. Select "Internal editors" radio at the top
9. Select "JavaScript Viewer". Click "OK" -> "OK"

To add JavaScript Perspective: (Optional)
10. Go to "Window" -> "Open Perspective" -> "Other..."
11. Select "JavaScript". Click "OK"

To open .html or .js file with highlighted JavaScript syntax:
12. (Optional) Select JavaScript Perspective
13. Browse and Select .html or .js file in Script Explorer in [JavaScript Perspective] (Or Package Explorer [Java Perspective] Or PyDev Package Explorer [PyDev Perspective] Don't matter.)
14. Right-click on .html or .js file -> "Open With" -> "Other..."
15. Select "Internal editors"
16. Select "Java Script Editor". Click "OK" (see JavaScript syntax is now highlighted )

After installation/upgrading node via brew I ran into this issue exactly: the node command worked but not the npm command.

I used these commands to fix it.

brew uninstall node
brew update
brew upgrade
brew cleanup
brew install node
sudo chown -R $(whoami) /usr/local
brew link --overwrite node
brew postinstall node

I pieced together this solution after trial and error using...

• a github thread: https://github.com/npm/npm/issues/3125

• this site: http://developpeers.com/blogs/fix-for-homebrew-permission-denied-issues

In my case, along with Mekanik's suggestions, I was receiving this error in Windows Server 2012 and I had to tick "HTTP Activation" in "Add Role Services".

The problem is that your PATH does not include the location of the node executable.

You can likely run node as "/usr/local/bin/node".

You can add that location to your path by running the following command to add a single line to your bashrc file:

echo 'export PATH=$PATH:/usr/local/bin' >> $HOME/.bashrc

Have you tried actually adding the Access-Control-Allow-Origin header to the response sent from your server? Like, Access-Control-Allow-Origin: *?

Since this is a pretty old question, and this method hasn't been added (aside from the system() call function) I guess it would be useful to include creating the shell script with the C binary itself. The shell code will be housed inside the file.c source file. Here is an example of code:

#include <stdio.h>
#include <stdlib.h>

#define SHELLSCRIPT "\
#/bin/bash \n\
echo -e \"\" \n\
echo -e \"This is a test shell script inside C code!!\" \n\
read -p \"press <enter> to continue\" \n\
clear\
"

int main() {

system(SHELLSCRIPT);
return 0;
}

Basically, in a nutshell (pun intended), we are defining the script name, fleshing out the script, enclosing them in double quotes (while inserting proper escapes to ignore double quotes in the shell code), and then calling that script's name, which in this example is SHELLSCRIPT using the system() function in main().

If you are Working On Oracle Then:

SELECT column1 || column2 AS column3
FROM table;

OR

If You Are Working On MySql Then:

SELECT Concat(column1 ,column2) AS column3
FROM table;

Quite a busy one-liner, but here it is:

1. First ensure your NumPy array, myarray, is normalised with the max value at 1.0.
2. Apply the colormap directly to myarray.
3. Rescale to the 0-255 range.
4. Convert to integers, using np.uint8().
5. Use Image.fromarray().

And you're done:

from PIL import Image
from matplotlib import cm
im = Image.fromarray(np.uint8(cm.gist_earth(myarray)*255))

with plt.savefig():

with im.save():

Try this:

@echo off
set run=
tasklist /fi "imagename eq notepad.exe" | find ":" > nul
if errorlevel 1 set run=yes
if "%run%"=="yes" echo notepad is running
if "%run%"=="" echo notepad is not running
pause

Below one works when you get,

java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()

final Handler handler = new Handler(Looper.getMainLooper());
handler.postDelayed(new Runnable() {
  @Override
  public void run() {
    //Do something after 100ms
  }
}, 100);

Have a look here, this has a proof-of-concept page and demo you can use to get anything from the drop-down: asp:DropDownList Control Tutorial Page

You need add href property and check indexOf instead of contains

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<script type="text/javascript">_x000D_
  $(document).ready(function() {_x000D_
    if (window.location.href.indexOf("franky") > -1) {_x000D_
      alert("your url contains the name franky");_x000D_
    }_x000D_
  });_x000D_
</script>

You can do this:

a = np.array([])
for x in y:
    a = np.append(a, x)

After browsing search engines for a few hours I came across a site with a great ERD example here: http://www.exploredatabase.com/2016/07/description-about-weak-entity-sets-in-DBMS.html

I've recreated the ERD. Unfortunately they did not specify the primary key of the weak entity.

If the building could only have one and only one apartment, then it seems the partial discriminator room number would not be created (i.e. discarded).

i use colname(train) = paste("A", colname(train)) and it turns out to the same problem as yours.

I finally figure out that randomForest is more stingy than rpart, it can't recognize the colname with space, comma or other specific punctuation.

paste function will prepend "A" and " " as seperator with each colname. so we need to avert the space and use this sentence instead:

colname(train) = paste("A", colname(train), sep = "")

this will prepend string without space.

I know the question is about getting the day of week as string (e.g. the short name), but for anybody who is looking for the numeric day of week (as I was), you can use the new "u" format string, supported since Java 7. For example:

new SimpleDateFormat("u").format(new Date());

returns today's day-of-week index, namely: 1 = Monday, 2 = Tuesday, ..., 7 = Sunday.

If you want to get values in Javascript on frontend, you can use the native way to do it by using :

document.getElementsByName("movie")[0].value;

Where "movie" is the name of your input <input type="text" name="movie">

If you want to get it on angular.js controller, you can use;

$scope.movie

Here is an overview of the many ways that can be done, for my own reference as well as yours :) The functions return a hash of attribute names and their values.

Vanilla JS:

function getAttributes ( node ) {
    var i,
        attributeNodes = node.attributes,
        length = attributeNodes.length,
        attrs = {};

    for ( i = 0; i < length; i++ ) attrs[attributeNodes[i].name] = attributeNodes[i].value;
    return attrs;
}

Vanilla JS with Array.reduce

Works for browsers supporting ES 5.1 (2011). Requires IE9+, does not work in IE8.

function getAttributes ( node ) {
    var attributeNodeArray = Array.prototype.slice.call( node.attributes );

    return attributeNodeArray.reduce( function ( attrs, attribute ) {
        attrs[attribute.name] = attribute.value;
        return attrs;
    }, {} );
}

jQuery

This function expects a jQuery object, not a DOM element.

function getAttributes ( $node ) {
    var attrs = {};
    $.each( $node[0].attributes, function ( index, attribute ) {
        attrs[attribute.name] = attribute.value;
    } );

    return attrs;
}

Underscore

Also works for lodash.

function getAttributes ( node ) {
    return _.reduce( node.attributes, function ( attrs, attribute ) {
        attrs[attribute.name] = attribute.value;
        return attrs;
    }, {} );
}

lodash

Is even more concise than the Underscore version, but only works for lodash, not for Underscore. Requires IE9+, is buggy in IE8. Kudos to @AlJey for that one.

function getAttributes ( node ) {
    return _.transform( node.attributes, function ( attrs, attribute ) {
        attrs[attribute.name] = attribute.value;
    }, {} );
}

Test page

At JS Bin, there is a live test page covering all these functions. The test includes boolean attributes (hidden) and enumerated attributes (contenteditable="").

If you're going to watch only one array, you can simply use this bit of code:

$scope.$watch('columns', function() {
  // some value in the array has changed 
}, true); // watching properties

example

But this will not work with multiple arrays:

$scope.$watch('columns + ANOTHER_ARRAY', function() {
  // will never be called when things change in columns or ANOTHER_ARRAY
}, true);

example

To handle this situation, I usually convert the multiple arrays I want to watch into JSON:

$scope.$watch(function() { 
  return angular.toJson([$scope.columns, $scope.ANOTHER_ARRAY, ... ]); 
},
function() {
  // some value in some array has changed
}

example

As @jssebastian pointed out in the comments, JSON.stringify may be preferable to angular.toJson as it can handle members that start with '$' and possible other cases as well.

I wrote the following class to get YouTube video duration using the YouTube API v3 (it returns thumbnails as well):

class Youtube
{
    static $api_key = '<API_KEY>';
    static $api_base = 'https://www.googleapis.com/youtube/v3/videos';
    static $thumbnail_base = 'https://i.ytimg.com/vi/';

    // $vid - video id in youtube
    // returns - video info
    public static function getVideoInfo($vid)
    {
        $params = array(
            'part' => 'contentDetails',
            'id' => $vid,
            'key' => self::$api_key,
        );

        $api_url = Youtube::$api_base . '?' . http_build_query($params);
        $result = json_decode(@file_get_contents($api_url), true);

        if(empty($result['items'][0]['contentDetails']))
            return null;
        $vinfo = $result['items'][0]['contentDetails'];

        $interval = new DateInterval($vinfo['duration']);
        $vinfo['duration_sec'] = $interval->h * 3600 + $interval->i * 60 + $interval->s;

        $vinfo['thumbnail']['default']       = self::$thumbnail_base . $vid . '/default.jpg';
        $vinfo['thumbnail']['mqDefault']     = self::$thumbnail_base . $vid . '/mqdefault.jpg';
        $vinfo['thumbnail']['hqDefault']     = self::$thumbnail_base . $vid . '/hqdefault.jpg';
        $vinfo['thumbnail']['sdDefault']     = self::$thumbnail_base . $vid . '/sddefault.jpg';
        $vinfo['thumbnail']['maxresDefault'] = self::$thumbnail_base . $vid . '/maxresdefault.jpg';

        return $vinfo;
    }
}

Please note that you'll need API_KEY to use the YouTube API:

1. Create a new project here: https://console.developers.google.com/project
2. Enable "YouTube Data API" under "APIs & auth" -> APIs
3. Create a new server key under "APIs & auth" -> Credentials

Try trimming the string to make sure there is no extra white space:

Cursor c = db.rawQuery("SELECT * FROM tbl1 WHERE TRIM(name) = '"+name.trim()+"'", null);

Also use c.moveToFirst() like @thinksteep mentioned.

This is a complete code for select statements.

SQLiteDatabase db = this.getReadableDatabase();
Cursor c = db.rawQuery("SELECT column1,column2,column3 FROM table ", null);
if (c.moveToFirst()){
    do {
        // Passing values 
        String column1 = c.getString(0);
        String column2 = c.getString(1);
        String column3 = c.getString(2); 
        // Do something Here with values
    } while(c.moveToNext());
}
c.close();
db.close();

Try this (Make sure you use System.Net):

public bool checkWebsite(string URL) {
   try {
      WebClient wc = new WebClient();
      string HTMLSource = wc.DownloadString(URL);
      return true;
   }
   catch (Exception) {
      return false;
   }
}

When the checkWebsite() function gets called, it tries to get the source code of the URL passed into it. If it gets the source code, it returns true. If not, it returns false.

Code Example:

//The checkWebsite command will return true:
bool websiteExists = this.checkWebsite("https://www.google.com");

//The checkWebsite command will return false:
bool websiteExists = this.checkWebsite("https://www.thisisnotarealwebsite.com/fakepage.html");

Use keydown event to do it:

   input: HTMLDivElement | null = null;

   onKeyDown = (event: React.KeyboardEvent<HTMLDivElement>): void => {
      // 'keypress' event misbehaves on mobile so we track 'Enter' key via 'keydown' event
      if (event.key === 'Enter') {
        event.preventDefault();
        event.stopPropagation();
        this.onSubmit();
      }
    }

    onSubmit = (): void => {
      if (input.textContent) {
         this.props.onSubmit(input.textContent);
         input.focus();
         input.textContent = '';
      }
    }

    render() {
      return (
         <form className="commentForm">
           <input
             className="comment-input"
             aria-multiline="true"
             role="textbox"
             contentEditable={true}
             onKeyDown={this.onKeyDown}
             ref={node => this.input = node} 
           />
           <button type="button" className="btn btn-success" onClick={this.onSubmit}>Comment</button>
         </form>
      );
    }

The FileNameExtensionFilter class is intended for Swing to be used in a JFileChooser.

Try using a FilenameFilter instead. For example:

File dir = new File("/users/blah/dirname");
File[] files = dir.listFiles(new FilenameFilter() {
    public boolean accept(File dir, String name) {
        return name.toLowerCase().endsWith(".txt");
    }
});

I was able to get this working with CSS only.

The trick is to use display: flex; and flex-direction: column-reverse;

The browser treats the bottom like its the top. Assuming the browsers you're targeting support flex-box, the only caveat is that the markup has to be in reverse order.

Here is a working example. https://codepen.io/jimbol/pen/YVJzBg

Your file has syntax error, so your file was not interpreted, so settings was not changed and you have blank page.

You can separate your file to two.

index.php

<?php
ini_set("display_errors", "1");
error_reporting(E_ALL);
include 'error.php';

error.php

<?
echo('catch this -> ' ;. $thisdoesnotexist);

There are several versions of the clearfix, with Nicolas Gallagher and Thierry Koblentz as key authors.

If you want support for older browsers, it's best to use this clearfix :

.clearfix:before, .clearfix:after {
    content: "";
    display: table;
}

.clearfix:after {
    clear: both;
}

.clearfix {
    *zoom: 1;
}

In SCSS, you should use the following technique :

%clearfix {
  &:before, &:after {
    content:" ";
    display:table;
  }

  &:after {
    clear:both;
  }

  & {
    *zoom:1;
  }
}

#clearfixedelement {
    @extend %clearfix;
}

If you don't care about support for older browsers, there's a shorter version :

.clearfix:after {
    content:"";
    display:table;
    clear:both;
}

Perhaps another way to code conditional constructs in XML:

<rule>
    <if>
        <conditions>
            <condition var="something" operator="&gt;">400</condition>
            <!-- more conditions possible -->
        </conditions>
        <statements>
            <!-- do something -->
        </statements>
    </if>
    <elseif>
        <conditions></conditions>
        <statements></statements>
    </elseif>
    <else>
        <statements></statements>
    </else>
</rule>

Following should work

$d = strtotime("+1 months",strtotime("2015-05-25"));
echo   date("Y-m-d",$d); // This will print **2015-06-25** 

so you can use parent() to reach to the parent tr and then use find to gather the td with class two

var Something = $(this).parent().find(".two").html();

or

var Something = $(this).parent().parent().find(".two").html();

use as much as parent() what ever the depth of the clicked object according to the tr row

hope this works...

You should have to use DateTime.TryParseExact.

var newDate = DateTime.ParseExact("20111120", 
                                  "yyyyMMdd", 
                                   CultureInfo.InvariantCulture);

OR

string str = "20111021";
string[] format = {"yyyyMMdd"};
DateTime date;

if (DateTime.TryParseExact(str, 
                           format, 
                           System.Globalization.CultureInfo.InvariantCulture,
                           System.Globalization.DateTimeStyles.None, 
                           out date))
{
     //valid
}

I have had the same problem, and I went through the Event viewer application log where it clearly mention due to which exception this is happened. In my case exception was as below...

Exception information :

Exception type: HttpException 
Exception message: The target principal name is incorrect.  Cannot generate SSPI context.
at System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app)
at System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers)
at System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context)
at System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context)
at System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext)

The target principal name is incorrect.  Cannot generate SSPI context.

I have just updated my password in application pool and it works for me.

Take a look at section 9.2.: Maven Properties of the free online book Maven: The Complete Reference.

Add:

fastcgi_buffers 16 16k;
fastcgi_buffer_size 32k;
proxy_buffer_size   128k;
proxy_buffers   4 256k;
proxy_busy_buffers_size   256k;

To server{} in nginx.conf

Works for me.

This would select 4 in your case

SELECT ID FROM TableA WHERE ID NOT IN (SELECT ID FROM TableB)

This would delete them

DELETE FROM TableA WHERE ID NOT IN (SELECT ID FROM TableB)

Subversion does not have a built-in "do not commit" / "ignore on commit" feature, as of February 2016 / version 1.9. This answer is a non-ideal command-line workaround

As the OP states, TortoiseSVN has a built in changelist, "ignore-on-commit", which is automatically excluded from commits. The command-line client does not have this, so you need to use multiple changelists to accomplish this same behavior (with caveats):

• one for work you want to commit [work]
• one for things you want to ignore [ignore-on-commit]

Since there's precedent with TortoiseSVN, I use "ignore-on-commit" in my examples for the files I don't want to commit. I'll use "work" for the files I do, but you could pick any name you wanted.

First, add all files to a changelist named "work". This must be run from the root of your working copy:

svn cl work . -R

This will add all files in the working copy recursively to the changelist named "work". There is a disadvantage to this - as new files are added to the working copy, you'll need to specifically add the new files or they won't be included. Second, if you have to run this again you'll then need to re-add all of your "ignore-on-commit" files again. Not ideal - you could start maintaining your own 'ignore' list in a file as others have done.

Then, for the files you want to exclude:

svn cl ignore-on-commit path\to\file-to-ignore

Because files can only be in one changelist, running this addition after your previous "work" add will remove the file you want to ignore from the "work" changelist and put it in the "ignore-on-commit" changelist.

When you're ready to commit your modified files you do wish to commit, you'd then simply add "--cl work" to your commit:

svn commit --cl work -m "message"

Here's what a simple example looks like on my machine:

D:\workspace\trunk>svn cl work . -R
Skipped '.'
Skipped 'src'
Skipped 'src\conf'
A [work] src\conf\db.properties
Skipped 'src\java'
Skipped 'src\java\com'
Skipped 'src\java\com\corp'
Skipped 'src\java\com\corp\sample'
A [work] src\java\com\corp\sample\Main.java
Skipped 'src\java\com\corp\sample\controller'
A [work] src\java\com\corp\sample\controller\Controller.java
Skipped 'src\java\com\corp\sample\model'
A [work] src\java\com\corp\sample\model\Model.java
Skipped 'src\java\com\corp\sample\view'
A [work] src\java\com\corp\sample\view\View.java
Skipped 'src\resource'
A [work] src\resource\icon.ico
Skipped 'src\test'

D:\workspace\trunk>svn cl ignore-on-commit src\conf\db.properties
D [work] src\conf\db.properties
A [ignore-on-commit] src\conf\db.properties

D:\workspace\trunk>svn status

--- Changelist 'work':
        src\java\com\corp\sample\Main.java
        src\java\com\corp\sample\controller\Controller.java
        src\java\com\corp\sample\model\Model.java
M       src\java\com\corp\sample\view\View.java
        src\resource\icon.ico

--- Changelist 'ignore-on-commit':
M       src\conf\db.properties

D:\workspace\trunk>svn commit --cl work -m "fixed refresh issue"
Sending        src\java\com\corp\sample\view\View.java
Transmitting file data .done
Committing transaction...
Committed revision 9.

An alternative would be to simply add every file you wish to commit to a 'work' changelist, and not even maintain an ignore list, but this is a lot of work, too. Really, the only simple, ideal solution is if/when this gets implemented in SVN itself. There's a longstanding issue about this in the Subversion issue tracker, SVN-2858, in the event this changes in the future.

To use the IntelliJ Java decompiler from the command line for a jar package follow the instructions provided here: https://github.com/JetBrains/intellij-community/tree/master/plugins/java-decompiler/engine

A lot of the answers here were written prior to Roslyn (the open-source .NET C# and VB compilers) moving to .NET 4.6. So they won't help you if your project targets, say, 4.5.2 as mine did (inherited and can't be changed).

But you can grab a previous version of Roslyn from https://www.nuget.org/packages/Microsoft.Net.Compilers and install that instead of the latest version. I used 1.3.2. (I tried 2.0.1 - which appears to be the last version that runs on .NET 4.5 - but I couldn't get it to compile*.) Run this from the Package Manager console in VS 2013:

PM> Install-Package Microsoft.Net.Compilers -Version 1.3.2

Then restart Visual Studio. I had a couple of problems initially; you need to set the C# version back to default (C#6.0 doesn't appear in the version list but seems to have been made the default), then clean, save, restart VS and recompile.

Interestingly, I didn't have any IntelliSense errors due to the C#6.0 features used in the code (which were the reason for wanting C#6.0 in the first place).

* version 2.0.1 threw error The "Microsoft.CodeAnalysis.BuildTasks.Csc task could not be loaded from the assembly Microsoft.Build.Tasks.CodeAnalysis.dll. Could not load file or assembly 'Microsoft.Build.Utilities.Core, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask.

UPDATE One thing I've noticed since posting this answer is that if you change any code during debug ("Edit and Continue"), you'll like find that your C#6.0 code will suddenly show as errors in what seems to revert to a pre-C#6.0 environment. This requires a restart of your debug session. VERY annoying especially for web applications.

Have you seen this already? The cause seems to be a very old libpam on one of the sides, probably on that customer.

Or the links for the version might be missing : http://www.linux.org/docs/ldp/howto/Program-Library-HOWTO/shared-libraries.html

AS is state in W3: W3 Cascade CSS

the orden that different style sheet are applied is the following (quote from W3 cascading section):

1. user agent declarations

2. user normal declarations

3. author normal declarations

4. author important declarations

5. user important declarations

More information about this in the referred W3 document

Note: This answer should probably not be used in production code. It's a hack and you should know about the implications.

There is the uvrun module (updated for newer Nodejs versions here) where you can execute a single loop round of the libuv main event loop (which is the Nodejs main loop).

Your code would look like this:

function(query) {
  var r;
  myApi.exec('SomeCommand', function(response) {
    r = response;
  });
  var uvrun = require("uvrun");
  while (!r)
    uvrun.runOnce();
  return r;
}

(You might alternative use uvrun.runNoWait(). That could avoid some problems with blocking, but takes 100% CPU.)

Note that this approach kind of invalidates the whole purpose of Nodejs, i.e. to have everything async and non-blocking. Also, it could increase your callstack depth a lot, so you might end up with stack overflows. If you run such function recursively, you definitely will run into troubles.

See the other answers about how to redesign your code to do it "right".

This solution here is probably only useful when you do testing and esp. want to have synced and serial code.

What you may want to do is include a script on all pages that does the following ... 1. find the youtube-iframe : searching for it by width and height by title or by finding www.youtube.com in its source. You can do that by ... - looping through the window.frames by a for-in loop and then filter out by the properties

1. inject jscript in the iframe of the current page adding the onYoutubePlayerReady must-include-function http://shazwazza.com/post/Injecting-JavaScript-into-other-frames.aspx

2. Add the event listeners etc..

Hope this helps

Sub Results2()

    Dim rCell As Range
    Dim shSource As Worksheet
    Dim shDest As Worksheet
    Dim lCnt As Long

    Set shSource = ThisWorkbook.Sheets("Sheet1")
    Set shDest = ThisWorkbook.Sheets("Sheet2")

    For Each rCell In shSource.Range("A1", shSource.Cells(shSource.Rows.Count, 1).End(xlUp)).Cells
        lCnt = lCnt + 1
        shDest.Range("A4").Offset(0, lCnt * 4).Formula = "=" & rCell.Address(False, False, , True) & "+" & rCell.Offset(0, 1).Address(False, False, , True)
    Next rCell

End Sub

This loops through column A of sheet1 and creates a formula in sheet2 for every cell. To find the last cell in Sheet1, I start at the bottom (shSource.Rows.Count) and .End(xlUp) to get the last cell in the column that's not blank.

To create the elements of the formula, I use the Address property of the cell on Sheet. I'm using three of the arguments to Address. The first two are RowAbsolute and ColumnAbsolute, both set to false. I don't care about the third argument, but I set the fourth argument (External) to True so that it includes the sheet name.

I prefer to go from Source to Destination rather than the other way. But that's just a personal preference. If you want to work from the destination,

Sub Results3()

    Dim i As Long, lCnt As Long
    Dim sh As Worksheet

    lCnt = Application.WorksheetFunction.CountA(ThisWorkbook.Sheets("Sheet1").Columns(1))
    Set sh = ThisWorkbook.Sheets("Sheet2")

    Const sSOURCE As String = "Sheet1!"

    For i = 1 To lCnt
        sh.Range("A1").Offset(0, 4 * (i - 1)).Formula = "=" & sSOURCE & "A" & i & " + " & sSOURCE & "B" & i
    Next i

End Sub

The simplest solution to this, that also works between different Linux machines through ssh is:

1. Check whether vim supports X-11 clipboard: vim --version | grep clipboard. If it reports back -clipboard and -xterm_clipboard you should install either vim-gtk or vim-gnome (gvim on arch linux)

2. Add the following lines to your .vimrc:

set clipboard=unnamedplus
set paste

3. If you login on a different machine via ssh, use the option -Y: ssh -Y machine

Now copying and pasting should work exactly as expected on a single, and across different machines by only using y for yank and p for paste. NB modify .vimrc on all machines where you want to use this feature.

pep8 was recently added to PyPi.

• pep8 - Python style guide checker
• pep8 is a tool to check your Python code against some of the style conventions in PEP 8.

It is now super easy to check your code against pep8.

See http://pypi.python.org/pypi/pep8

If you're using .NET 4.5 and want to use async then you can use HttpClient in System.Net.Http:

using (var httpClient = new HttpClient())
{
    var json = await httpClient.GetStringAsync("url");

    // Now parse with JSON.Net
}

One more option, using meld in this case:

git difftool -d master otherbranch

This allows not only to see the differences between files, but also provides a easy way to point and click into a specific file.

I have wrapped it in my date time helper class here https://github.com/normandqq/Date-Time-Helper using $dateLastDay = Model_DTHpr::getLastDayOfTheMonth();

And it is done

Dont know whether I should put this as answer or not...

I used @Zeeshan0026's solution to draw the path...and the problem was that if I draw path once, and then I do try to draw path once again, both two paths show and this continues...paths showing even when markers were deleted... while, ideally, old paths' shouldn't be there once new path is drawn / markers are deleted..

going through some other question over SO, I had the following solution

I add the following function in Zeeshan's class

 public void clearRoute(){

         for(Polyline line1 : polylines)
         {
             line1.remove();
         }

         polylines.clear();

     }

in my map activity, before drawing the path, I called this function.. example usage as per my app is

private Route rt;

rt.clearRoute();

            if (src == null) {
                Toast.makeText(getApplicationContext(), "Please select your Source", Toast.LENGTH_LONG).show();
            }else if (Destination == null) {
                Toast.makeText(getApplicationContext(), "Please select your Destination", Toast.LENGTH_LONG).show();
            }else if (src.equals(Destination)) {
                Toast.makeText(getApplicationContext(), "Source and Destinatin can not be the same..", Toast.LENGTH_LONG).show();
            }else{

                rt.drawRoute(mMap, MapsMainActivity.this, src,
                        Destination, false, "en");
            }

you can use rt.clearRoute(); as per your requirements.. Hoping that it will save a few minutes of someone else and will help some beginner in solving this issue..

Complete Class Code

see on github

Edit: here is part of code from mainactivity..

case R.id.mkrbtn_set_dest:
                    Destination = selmarker.getPosition();
                    destmarker = selmarker;
                    desShape = createRouteCircle(Destination, false);

                    if (src == null) {
                        Toast.makeText(getApplicationContext(),
                                "Please select your Source first...",
                                Toast.LENGTH_LONG).show();
                    } else if (src.equals(Destination)) {
                        Toast.makeText(getApplicationContext(),
                                "Source and Destinatin can not be the same..",
                                Toast.LENGTH_LONG).show();
                    } else {

                        if (isNetworkAvailable()) {
                            rt.drawRoute(mMap, MapsMainActivity.this, src,
                                    Destination, false, "en");
                            src = null;
                            Destination = null;

                        } else {
                            Toast.makeText(
                                    getApplicationContext(),
                                    "Internet Connection seems to be OFFLINE...!",
                                    Toast.LENGTH_LONG).show();

                        }

                    }

                    break;

Edit 2 as per comments

usage :

//variables as data members
GoogleMap mMap;
private Route rt;
static LatLng src;
static LatLng Destination;
//MapsMainActivity is my activity
//false for interim stops for traffic, google
// en language for html description returned

rt.drawRoute(mMap, MapsMainActivity.this, src,
                            Destination, false, "en");

I have same problem but I solve it by adding environment variable (Run --> Run Configuration --> Environment variable ) as

variable : java_ipv6
value : -Djava.net.preferIPv4Stack=true

No. This needs to be done in the HTML. You could set the value with Javascript if you need to though.

Python 3 standard library one-liner:

load(urlopen(url))

# imports (place these above the code before running it)
from json import load
from urllib.request import urlopen
url = 'https://jsonplaceholder.typicode.com/todos/1'

If you are here because your project fails to build on a build server, but builds fine "manually" on a dev machine, and you are doing xcopy only for debugging and to emulate a production environment on a dev machine, then you may want to look at this solution:

https://stackoverflow.com/a/1732478/2279059

You simply turn off post build events on the build server using

msbuild foo.sln /p:PostBuildEvent=

This is not good enough if you have other post build events that also need to run on the build server, and it is not a general solution. However, since there are so many different causes of this problem, there cannot be a general solution. One of the many answers to this question (and its duplicates) will probably help, but be careful with approaches that only somehow circumvent error handling (such as xcopy /C). Those may work for you, particularly also in the build server scenario, but I think this one is more reliable, IF it can be used.

It has also been suggested that with newer versions of Visual Studio, the problem no longer exists, so if you are using an old version, consider updating your build tools.

The term overloading refers to having multiple versions of something with the same name, usually methods with different parameter lists

public int DoSomething(int objectId) { ... }
public int DoSomething(string objectName) { ... }

So these functions might do the same thing but you have the option to call it with an ID, or a name. Has nothing to do with inheritance, abstract classes, etc.

Overriding usually refers to polymorphism, as you described in your question

Follow these steps (taken from this Youtube video).

1. Quit Skype
2. Uninstall IIS
   • Go to control panel
   • Refer to PROGRAMS AND FEATURES
   • Go to TURN WINDOWS FEATURES ON OR OFF
   • Look for INTERNET information service
   • Uninstall

Here is a Typescript implementation that supports webp. This is based on the JavaScript answer by Vitim.us.

interface Mime {
  mime: string;
  pattern: (number | undefined)[];
}

// tslint:disable number-literal-format
// tslint:disable no-magic-numbers
const imageMimes: Mime[] = [
  {
    mime: 'image/png',
    pattern: [0x89, 0x50, 0x4e, 0x47]
  },
  {
    mime: 'image/jpeg',
    pattern: [0xff, 0xd8, 0xff]
  },
  {
    mime: 'image/gif',
    pattern: [0x47, 0x49, 0x46, 0x38]
  },
  {
    mime: 'image/webp',
    pattern: [0x52, 0x49, 0x46, 0x46, undefined, undefined, undefined, undefined, 0x57, 0x45, 0x42, 0x50, 0x56, 0x50],
  }
  // You can expand this list @see https://mimesniff.spec.whatwg.org/#matching-an-image-type-pattern
];
// tslint:enable no-magic-numbers
// tslint:enable number-literal-format

function isMime(bytes: Uint8Array, mime: Mime): boolean {
  return mime.pattern.every((p, i) => !p || bytes[i] === p);
}

function validateImageMimeType(file: File, callback: (b: boolean) => void) {
  const numBytesNeeded = Math.max(...imageMimes.map(m => m.pattern.length));
  const blob = file.slice(0, numBytesNeeded); // Read the needed bytes of the file

  const fileReader = new FileReader();

  fileReader.onloadend = e => {
    if (!e || !fileReader.result) return;

    const bytes = new Uint8Array(fileReader.result as ArrayBuffer);

    const valid = imageMimes.some(mime => isMime(bytes, mime));

    callback(valid);
  };

  fileReader.readAsArrayBuffer(blob);
}

// When selecting a file on the input
fileInput.onchange = () => {
  const file = fileInput.files && fileInput.files[0];
  if (!file) return;

  validateImageMimeType(file, valid => {
    if (!valid) {
      alert('Not a valid image file.');
    }
  });
};

<input type="file" id="fileInput">

For Windows Users,

Use the Tomcat Service Installer from the Apache tomcat downloads page. You will get a .exe file. which Installs the service for windows. It will usually install Apache tomcat at "C:\Program Files\Apache Software Foundation\Tomcat 8.0" and its easily recognized in eclipse.

Yes, that's usually happens after 1440s (24 minutes)

If you need web functionality in your application (like org.springframework.web.client.RestTemplate for REST calls) but you don't want to start a TOMCAT server, just exclude it in the POM:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <exclusions>
        <exclusion>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
        </exclusion>
    </exclusions>
</dependency>

This is a slightly enhanced version of previous answers.

• In addition to Lawrence's answer, it cancels the original task when timeout occurs.
• In addtion to sjb's answer variants 2 and 3, you can provide CancellationToken for the original task, and when timeout occurs, you get TimeoutException instead of OperationCanceledException.

async Task<TResult> CancelAfterAsync<TResult>(
    Func<CancellationToken, Task<TResult>> startTask,
    TimeSpan timeout, CancellationToken cancellationToken)
{
    using (var timeoutCancellation = new CancellationTokenSource())
    using (var combinedCancellation = CancellationTokenSource
        .CreateLinkedTokenSource(cancellationToken, timeoutCancellation.Token))
    {
        var originalTask = startTask(combinedCancellation.Token);
        var delayTask = Task.Delay(timeout, timeoutCancellation.Token);
        var completedTask = await Task.WhenAny(originalTask, delayTask);
        // Cancel timeout to stop either task:
        // - Either the original task completed, so we need to cancel the delay task.
        // - Or the timeout expired, so we need to cancel the original task.
        // Canceling will not affect a task, that is already completed.
        timeoutCancellation.Cancel();
        if (completedTask == originalTask)
        {
            // original task completed
            return await originalTask;
        }
        else
        {
            // timeout
            throw new TimeoutException();
        }
    }
}

Usage

InnerCallAsync may take a long time to complete. CallAsync wraps it with a timeout.

async Task<int> CallAsync(CancellationToken cancellationToken)
{
    var timeout = TimeSpan.FromMinutes(1);
    int result = await CancelAfterAsync(ct => InnerCallAsync(ct), timeout,
        cancellationToken);
    return result;
}

async Task<int> InnerCallAsync(CancellationToken cancellationToken)
{
    return 42;
}

You already get the next line in this line of your code:

 String line = sc.nextLine();  

To get the words of a line, I would recommend to use:

String[] words = line.split(" ");

You can set it as a no title bar theme in the activity's xml in the AndroidManifest

    <activity 
        android:name=".AnActivity"
        android:label="@string/a_string"
        android:theme="@android:style/Theme.NoTitleBar">
    </activity>

For powers of 2:

var twoToThePowerOf = 1 << yourExponent;
// eg: 1 << 12 == 4096

You can specify that the data to be returned is not JSON using responseType.

In your example, you can use a responseType string value of text, like this:

return this.http.post(
    'http://10.0.1.19/login',
    {email, password},
    {responseType: 'text'})

The full list of options for responseType is:

• json (the default)
• text
• arraybuffer
• blob

See the docs for more information.

You may also pass the float value, and use:

String.format("%.2f", floatValue);

Documentation

For more performance: A simple change is observing that after n = 3n+1, n will be even, so you can divide by 2 immediately. And n won't be 1, so you don't need to test for it. So you could save a few if statements and write:

while (n % 2 == 0) n /= 2;
if (n > 1) for (;;) {
    n = (3*n + 1) / 2;
    if (n % 2 == 0) {
        do n /= 2; while (n % 2 == 0);
        if (n == 1) break;
    }
}

Here's a big win: If you look at the lowest 8 bits of n, all the steps until you divided by 2 eight times are completely determined by those eight bits. For example, if the last eight bits are 0x01, that is in binary your number is ???? 0000 0001 then the next steps are:

3n+1 -> ???? 0000 0100
/ 2  -> ???? ?000 0010
/ 2  -> ???? ??00 0001
3n+1 -> ???? ??00 0100
/ 2  -> ???? ???0 0010
/ 2  -> ???? ???? 0001
3n+1 -> ???? ???? 0100
/ 2  -> ???? ???? ?010
/ 2  -> ???? ???? ??01
3n+1 -> ???? ???? ??00
/ 2  -> ???? ???? ???0
/ 2  -> ???? ???? ????

So all these steps can be predicted, and 256k + 1 is replaced with 81k + 1. Something similar will happen for all combinations. So you can make a loop with a big switch statement:

k = n / 256;
m = n % 256;

switch (m) {
    case 0: n = 1 * k + 0; break;
    case 1: n = 81 * k + 1; break; 
    case 2: n = 81 * k + 1; break; 
    ...
    case 155: n = 729 * k + 425; break;
    ...
}

Run the loop until n = 128, because at that point n could become 1 with fewer than eight divisions by 2, and doing eight or more steps at a time would make you miss the point where you reach 1 for the first time. Then continue the "normal" loop - or have a table prepared that tells you how many more steps are need to reach 1.

PS. I strongly suspect Peter Cordes' suggestion would make it even faster. There will be no conditional branches at all except one, and that one will be predicted correctly except when the loop actually ends. So the code would be something like

static const unsigned int multipliers [256] = { ... }
static const unsigned int adders [256] = { ... }

while (n > 128) {
    size_t lastBits = n % 256;
    n = (n >> 8) * multipliers [lastBits] + adders [lastBits];
}

In practice, you would measure whether processing the last 9, 10, 11, 12 bits of n at a time would be faster. For each bit, the number of entries in the table would double, and I excect a slowdown when the tables don't fit into L1 cache anymore.

PPS. If you need the number of operations: In each iteration we do exactly eight divisions by two, and a variable number of (3n + 1) operations, so an obvious method to count the operations would be another array. But we can actually calculate the number of steps (based on number of iterations of the loop).

We could redefine the problem slightly: Replace n with (3n + 1) / 2 if odd, and replace n with n / 2 if even. Then every iteration will do exactly 8 steps, but you could consider that cheating :-) So assume there were r operations n <- 3n+1 and s operations n <- n/2. The result will be quite exactly n' = n * 3^r / 2^s, because n <- 3n+1 means n <- 3n * (1 + 1/3n). Taking the logarithm we find r = (s + log2 (n' / n)) / log2 (3).

If we do the loop until n = 1,000,000 and have a precomputed table how many iterations are needed from any start point n = 1,000,000 then calculating r as above, rounded to the nearest integer, will give the right result unless s is truly large.

For a time field, use:

import time    
time.strftime('%Y-%m-%d %H:%M:%S')

I think strftime also applies to datetime.

One thing, regardless of how you initialize the field, use of the final qualifier, if possible, will ensure the visibility of the field's value in a multi-threaded environment.

An easy and straightforward solution using the CASE function:

SELECT CASE WHEN ( a > 0 ) THEN (a*-1) ELSE (a*-1) END AS NegativeA,
       CASE WHEN ( b > 0 ) THEN (b*-1) ELSE (b*-1) END AS PositiveB
FROM YourTableName

Assuming doc is your instance of org.w3c.dom.Document:

TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
StringWriter writer = new StringWriter();
transformer.transform(new DOMSource(doc), new StreamResult(writer));
String output = writer.getBuffer().toString().replaceAll("\n|\r", "");

You could have the extension set a cookie and have your websites JavaScript check if that cookie is present and update accordingly. This and probably most other methods mentioned here could of course be cirvumvented by the user, unless you try and have the extension create custom cookies depending on timestamps etc, and have your application analyze them server side to see if it really is a user with the extension or someone pretending to have it by modifying his cookies.

The position: fixed; solution has a drawback - the page jumps to the top when this style is applied. Angular's Material Dialog has a nice solution, where they fake the scroll position by applying positioning to the html element.

Below is my revised algorithm for vertical scrolling only. Left scroll blocking is done in the exact same manner.

// This class applies the following styles:
// position: fixed;
// overflow-y: scroll;
// width: 100%;
const NO_SCROLL_CLASS = "bp-no-scroll";

const coerceCssPixelValue = value => {
  if (value == null) {
    return "";
  }

  return typeof value === "string" ? value : `${value}px`;
};

export const blockScroll = () => {
  const html = document.documentElement;
  const documentRect = html.getBoundingClientRect();
  const { body } = document;

  // Cache the current scroll position to be restored later.
  const cachedScrollPosition =
    -documentRect.top || body.scrollTop || window.scrollY || document.scrollTop || 0;

  // Cache the current inline `top` value in case the user has set it.
  const cachedHTMLTop = html.style.top || "";

  // Using `html` instead of `body`, because `body` may have a user agent margin,
  // whereas `html` is guaranteed not to have one.
  html.style.top = coerceCssPixelValue(-cachedScrollPosition);

  // Set the magic class.
  html.classList.add(NO_SCROLL_CLASS);

  // Return a function to remove the scroll block.
  return () => {
    const htmlStyle = html.style;
    const bodyStyle = body.style;

    // We will need to seamlessly restore the original scroll position using
    // `window.scroll`. To do that we will change the scroll behavior to `auto`.
    // Here we cache the current scroll behavior to restore it later.
    const previousHtmlScrollBehavior = htmlStyle.scrollBehavior || "";
    const previousBodyScrollBehavior = bodyStyle.scrollBehavior || "";

    // Restore the original inline `top` value.
    htmlStyle.top = cachedHTMLTop;

    // Remove the magic class.
    html.classList.remove(NO_SCROLL_CLASS);

    // Disable user-defined smooth scrolling temporarily while we restore the scroll position.
    htmlStyle.scrollBehavior = bodyStyle.scrollBehavior = "auto";

    // Restore the original scroll position.
    window.scroll({
      top: cachedScrollPosition.top
    });

    // Restore the original scroll behavior.
    htmlStyle.scrollBehavior = previousHtmlScrollBehavior;
    bodyStyle.scrollBehavior = previousBodyScrollBehavior;
  };
};

The logic is very simple and can be simplified even more if you don't care about certain edge cases. For example, this is what I use:

export const blockScroll = () => {
  const html = document.documentElement;
  const documentRect = html.getBoundingClientRect();
  const { body } = document;
  const screenHeight = window.innerHeight;

  // Only do the magic if document is scrollable
  if (documentRect.height > screenHeight) {
    const cachedScrollPosition =
      -documentRect.top || body.scrollTop || window.scrollY || document.scrollTop || 0;

    html.style.top = coerceCssPixelValue(-cachedScrollPosition);

    html.classList.add(NO_SCROLL_CLASS);

    return () => {
      html.classList.remove(NO_SCROLL_CLASS);

      window.scroll({
        top: cachedScrollPosition,
        behavior: "auto"
      });
    };
  }
};

Ruby can't find any root certificates to trust.

Take a look at this blog post for a solution: "Ruby 1.9 and the SSL error".

The solution is to install the curl-ca-bundle port which contains the same root certificates used by Firefox:

sudo port install curl-ca-bundle

and tell your https object to use it:

https.ca_file = '/opt/local/share/curl/curl-ca-bundle.crt'

Note that if you want your code to run on Ubuntu, you need to set the ca_path attribute instead, with the default certificates location /etc/ssl/certs.

Apparently you have created an 'Empty' project type without 'Scripts' folder. My advice -create a 'Basic' project type with full 'Scripts' folder.

With respect to all developers.

Packets and Frames are the names given to Protocol data units (PDUs) at different network layers

• Segments/Datagrams are units of data in the Transport Layer.

  In the case of the internet, the term Segment typically refers to TCP, while Datagram typically refers to UDP. However Datagram can also be used in a more general sense and refer to other layers (link):

  Datagram

  A self-contained, independent entity of data carrying sufficient information to be routed from the source to the destination computer without reliance on earlier exchanges between this source and destination computer andthe transporting network.

• Packets are units of data in the Network Layer (IP in case of the Internet)

• Frames are units of data in the Link Layer (e.g. Wifi, Bluetooth, Ethernet, etc).

I don't like the above approaches. Using cherry-pick is great for picking a single change, but it is a pain if you want to bring in all the changes except for some bad ones. Here is my approach.

There is no --interactive argument you can pass to git merge.

Here is the alternative:

You have some changes in branch 'feature' and you want to bring some but not all of them over to 'master' in a not sloppy way (i.e. you don't want to cherry pick and commit each one)

git checkout feature
git checkout -b temp
git rebase -i master

# Above will drop you in an editor and pick the changes you want ala:
pick 7266df7 First change
pick 1b3f7df Another change
pick 5bbf56f Last change

# Rebase b44c147..5bbf56f onto b44c147
#
# Commands:
# pick = use commit
# edit = use commit, but stop for amending
# squash = use commit, but meld into previous commit
#
# If you remove a line here THAT COMMIT WILL BE LOST.
# However, if you remove everything, the rebase will be aborted.
#

git checkout master
git pull . temp
git branch -d temp

So just wrap that in a shell script, change master into $to and change feature into $from and you are good to go:

#!/bin/bash
# git-interactive-merge
from=$1
to=$2
git checkout $from
git checkout -b ${from}_tmp
git rebase -i $to
# Above will drop you in an editor and pick the changes you want
git checkout $to
git pull . ${from}_tmp
git branch -d ${from}_tmp

The problem with all these solutions (using the > redirector character) is that you write your dump from stdout which may break the encoding of some characters of your database.

If you have a character encoding issue. Such as :

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ...

then, you MUST use -r option to write the file.

MySQL

mysqldump -u user -pyour-password-without-space-between-letter-p-and-your-password --default-character-set=utf8 --host $HOST database-name -r dump.sql

Using Docker

docker exec --rm -v $pwd:dump -it mysql:5:7 mysqldump -u user -pyour-password-without-space-between-letter-p-and-your-password --default-character-set=utf8 --host $HOST database-name -r dump/dump.sql

Note: this mounts the current path as dump inside the instance.

We found the answer here

Conversely, don't use < to import your dump into your database, again, your non-utf8 characters may not be passed; but prefer source option.

mysql -u user -pYourPasswordYouNowKnowHow --default-character-set=utf8 your-database
mysql> SET names 'utf8'
mysql> SOURCE dump.sql

Update your

<li>
  <a href="#about">About</a>
</li>

to

<li>
  <a data-toggle="collapse" data-target=".nav-collapse" href="#about">About</a>
</li>

This simple change worked for me.

Ref: https://github.com/twbs/bootstrap/issues/9013

Check whether your code contains a namespace which the right most part matches your static class name.

Given the a static Bar class, defined on namespace Foo, implementing a method Jump or a property, chances are you are receiving compiler error because there is also another namespace ending on Bar. Yep, fishi stuff ;-)

If that's so, it means your using a Using Bar; and a Bar.Jump() call, therefore one of the following solutions should fit your needs:

• Fully qualify static class name with according namepace, which result on Foo.Bar.Jump() declaration. You will also need to remove Using Bar; statement
• Rename namespace Bar by a diffente name.

In my case, the foollowing compiler error occurred on a EF (Entity Framework) repository project on an Database.SetInitializer() call:

Member 'Database.SetInitializer<MyDatabaseContext>(IDatabaseInitializer<MyDatabaseContext>)' cannot be accessed with an instance reference; qualify it with a type name instead MyProject.ORM

This error arouse when I added a MyProject.ORM.Database namespace, which sufix (Database), as you might noticed, matches Database.SetInitializer class name.

In this, since I have no control on EF's Database static class and I would also like to preserve my custom namespace, I decided fully qualify EF's Database static class with its namepace System.Data.Entity, which resulted on using the following command, which compilation succeed:

System.Data.Entity.Database.SetInitializer<MyDatabaseContext>(MyMigrationStrategy)

Hope it helps

You can achieve this using exists:

DELETE
  FROM table1
 WHERE exists(
           SELECT 1
             FROM table2
            WHERE table2.stn = table1.stn
              and table2.jaar = year(table1.datum)
       )

if you just want to forward the log to console in realtime

Below code will work for both

 p = subprocess.Popen(cmd,
                         shell=True,
                         cwd=work_dir,
                         bufsize=1,
                         stdin=subprocess.PIPE,
                         stderr=sys.stderr,
                         stdout=sys.stdout)

Depends on what you need the implementation to do well. Insertion order usually is not interesting so there is no need to maintain it so you can rearrange to get better performance.

For Maps it is usually HashMap and TreeMap that is used. By using hash codes, the entries can be put in small groups easy to search in. The TreeMap maintains a sorted order of the inserted entries at the cost of slower search, but easier to sort than a HashMap.

Solution with timeout, prevent memory leak :

The following code is based on Brandon Tilley's answer :

var http = require('http'),
    fs = require('fs');

var request = http.get("http://example12345.com/yourfile.html", function(response) {
    if (response.statusCode === 200) {
        var file = fs.createWriteStream("copy.html");
        response.pipe(file);
    }
    // Add timeout.
    request.setTimeout(12000, function () {
        request.abort();
    });
});

Don't make file when you get an error, and prefere to use timeout to close your request after X secondes.

I finally settled on typeof(MyClass).GetTypeInfo().Assembly.GetName().Version for a netstandard1.6 app. All of the other proposed answers presented a partial solution. This is the only thing that got me exactly what I needed.

Sourced from a combination of places:

https://msdn.microsoft.com/en-us/library/x4cw969y(v=vs.110).aspx

https://msdn.microsoft.com/en-us/library/2exyydhb(v=vs.110).aspx

$('.phone').focus(function(e) {
    // add mask
    $('.phone')
        .mask("(99) 99999999?9")
        .focusin(function(event)
        {
            $(this).unmask();
            $(this).mask("(99) 99999999?9");
        })
        .focusout(function(event)
        {
            var phone, element;
            element = $(this);
            phone = element.val().replace(/\D/g, '');
            element.unmask();

            if (phone.length > 10) {
                element.mask("(99) 99999-999?9");
            } else {
                element.mask("(99) 9999-9999?9");
            }
        }
    );
});

Refer to following links:

1. http://developer.android.com/reference/android/os/AsyncTask.html
2. http://labs.makemachine.net/2010/05/android-asynctask-example/

You cannot pass more than three arguments, if you want to pass only 1 argument then use void for the other two arguments.

1. private class DownloadFilesTask extends AsyncTask<URL, Integer, Long> 


2. protected class InitTask extends AsyncTask<Context, Integer, Integer>

An asynchronous task is defined by a computation that runs on a background thread and whose result is published on the UI thread. An asynchronous task is defined by 3 generic types, called Params, Progress and Result, and 4 steps, called onPreExecute, doInBackground, onProgressUpdate and onPostExecute.

KPBird

Notice you're not dynamically allocating the variable, which pretty much means the data inside str, in your function, will be lost by the end of the function.

You should have:

char * createStr() {

    char char1= 'm';
    char char2= 'y';

    char *str = malloc(3);
    str[0] = char1;
    str[1] = char2;
    str[2] = '\0';

    return str;

}

Then, when you call the function, the type of the variable that will receive the data must match that of the function return. So, you should have:

char *returned_str = createStr();

It worths mentioning that the returned value must be freed to prevent memory leaks.

char *returned_str = createStr();

//doSomething
...

free(returned_str);

I use this code and worked, maybe useful for you:

public static void makeImageRequest(final View parentView,final int id, final String imageUrl) {

    final int defaultImageResId = R.mipmap.user;
    final ImageView imageView = (ImageView) parentView.findViewById(id);
    Picasso.with(context)
            .load(imageUrl)
            .networkPolicy(NetworkPolicy.OFFLINE)
            .into(imageView, new Callback() {
                @Override
                public void onSuccess() {
                Log.v("Picasso","fetch image success in first time.");
                }

                @Override
                public void onError() {
                    //Try again online if cache failed
                    Log.v("Picasso","Could not fetch image in first time...");
                    Picasso.with(context).load(imageUrl).networkPolicy(NetworkPolicy.NO_CACHE)
                            .memoryPolicy(MemoryPolicy.NO_CACHE, MemoryPolicy.NO_STORE).error(defaultImageResId)
                            .into(imageView, new Callback() {

                                @Override
                                public void onSuccess() {
                                    Log.v("Picasso","fetch image success in try again.");
                                }

                                @Override
                                public void onError() {
                                  Log.v("Picasso","Could not fetch image again...");
                                }

                            });
                }
            });

}

if you only want the first line of the messages (the subject):

git log --pretty=format:"%s"

and if you want all the messages on this branch going back to master:

git log --pretty=format:"%s" master..HEAD

Last but not least, if you want to add little bullets for quick markdown release notes:

git log --pretty=format:"- %s" master..HEAD

Yes. It is possible to draw text in pygame:

# initialize font; must be called after 'pygame.init()' to avoid 'Font not Initialized' error
myfont = pygame.font.SysFont("monospace", 15)

# render text
label = myfont.render("Some text!", 1, (255,255,0))
screen.blit(label, (100, 100))

Upfront, I am a bit lacking in my GIT skills.

That is going to clone a bare repository on your machine, which only contains the folders within .git which is a hidden directory. execute ls -al and you should see .git or cd .git inside your repository.

Can you add a description of your intent so that someone with more GIT skills can help? What is it you really want to do not how you plan on doing it?

What type is the seahawk.flags variable?

In standard C++, enumerations are not type-safe. They are effectively integers.

AnimalFlags should NOT be the type of your variable. Your variable should be int and the error will go away.

Putting hexadecimal values like some other people suggested is not needed. It makes no difference.

The enum values ARE of type int by default. So you can surely bitwise OR combine them and put them together and store the result in an int.

The enum type is a restricted subset of int whose value is one of its enumerated values. Hence, when you make some new value outside of that range, you can't assign it without casting to a variable of your enum type.

You can also change the enum value types if you'd like, but there is no point for this question.

EDIT: The poster said they were concerned with type safety and they don't want a value that should not exist inside the int type.

But it would be type unsafe to put a value outside of AnimalFlags's range inside a variable of type AnimalFlags.

There is a safe way to check for out of range values though inside the int type...

int iFlags = HasClaws | CanFly;
//InvalidAnimalFlagMaxValue-1 gives you a value of all the bits 
// smaller than itself set to 1
//This check makes sure that no other bits are set.
assert(iFlags & ~(InvalidAnimalFlagMaxValue-1) == 0);

enum AnimalFlags {
    HasClaws = 1,
    CanFly =2,
    EatsFish = 4,
    Endangered = 8,

    // put new enum values above here
    InvalidAnimalFlagMaxValue = 16
};

The above doesn't stop you from putting an invalid flag from a different enum that has the value 1,2,4, or 8 though.

If you want absolute type safety then you could simply create a std::set and store each flag inside there. It is not space efficient, but it is type safe and gives you the same ability as a bitflag int does.

C++0x note: Strongly typed enums

In C++0x you can finally have type safe enum values....

enum class AnimalFlags {
    CanFly = 2,
    HasClaws = 4
};

if(CanFly == 2) { }//Compiling error

Just change this line:

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

with this line:

 <input type="submit" value="Submit/Reload" class="submit" onclick="history.go(-1);">

If I understand the question, then it seems to me that the questioner is really asking "OK, so 3-tier is well understood, but it seems that there's a mix of hype, confusion, and uncertainty around what 4-tier, or to generalize, N-tier architectures mean. So...what's a definition of N-tier that is widely understood and agreed upon?"

It's actually a fairly deep question, and to explain why, I need to go a little deeper. Bear with me.

The classic 3-tier architecture: database, "business logic" and presentation, is a good way to clarify how to honor the principle of separation of concerns. Which is to say, if I want to change how "the business" wants to service customers, I should not have to look through the entire system to figure out how to do this, and in particular, decisions business issues shouldn't be scattered willy-nilly through the code.

Now, this model served well for decades, and it is the classic 'client-server' model. Fast forward to cloud offerings, where web browsers are the user interface for a broad and physically distributed set of users, and one typically ends up having to add content distribution services, which aren't a part of the classic 3-tier architecture (and which need to be managed in their own right).

The concept generalizes when it comes to services, micro-services, how data and computation are distributed and so on. Whether or not something is a 'tier' largely comes down to whether or not the tier provides an interface and deployment model to services that are behind (or beneath) the tier. So a content distribution network would be a tier, but an authentication service would not be.

Now, go and read other descriptions of examples of N-tier architectures with this concept in mind, and you will begin to understand the issue. Other perspectives include vendor-based approaches (e.g. NGINX), content-aware load balancers, data isolation and security services (e.g. IBM Datapower), all of which may or may not add value to a given architecture, deployment, and use cases.

For the iOS9, Apple made a radical decision with iOS 9, disabling all unsecured HTTP traffic from iOS apps, as a part of App Transport Security (ATS).

To simply disable ATS, you can follow this steps by open Info.plist, and add the following lines:

<key>NSAppTransportSecurity</key>
  <dict>
      <key>NSAllowsArbitraryLoads</key>
      <true/>
  </dict>