from bs4 import BeautifulSoup
from bs4.element import Comment
import urllib.request
import re
import ssl

def tag_visible(element):
    if element.parent.name in ['style', 'script', 'head', 'title', 'meta', '[document]']:
        return False
    if isinstance(element, Comment):
        return False
    if re.match(r"[\n]+",str(element)): return False
    return True
def text_from_html(url):
    body = urllib.request.urlopen(url,context=ssl._create_unverified_context()).read()
    soup = BeautifulSoup(body ,"lxml")
    texts = soup.findAll(text=True)
    visible_texts = filter(tag_visible, texts)  
    text = u",".join(t.strip() for t in visible_texts)
    text = text.lstrip().rstrip()
    text = text.split(',')
    clean_text = ''
    for sen in text:
        if sen:
            sen = sen.rstrip().lstrip()
            clean_text += sen+','
    return clean_text
url = 'http://www.nytimes.com/2009/12/21/us/21storm.html'
print(text_from_html(url))

Try this script.

http://www.biterscripting.com/SS_URLs.html

When I use it with this url,

script SS_URLs.txt URL("http://stackoverflow.com/questions/56107/what-is-the-best-way-to-parse-html-in-c")

It shows me all the links on the page for this thread.

http://sstatic.net/so/all.css
http://sstatic.net/so/favicon.ico
http://sstatic.net/so/apple-touch-icon.png
.
.
.

You can modify that script to check for images, variables, whatever.

Here's A PHP Function I hobbled together from all of the above info for a similar purpose, namely adjusting image tag width and length properties on the fly ... a bit clunky, perhaps, but seems to work dependably:

function ReSizeImagesInHTML($HTMLContent,$MaximumWidth,$MaximumHeight) {

// find image tags
preg_match_all('/<img[^>]+>/i',$HTMLContent, $rawimagearray,PREG_SET_ORDER); 

// put image tags in a simpler array
$imagearray = array();
for ($i = 0; $i < count($rawimagearray); $i++) {
    array_push($imagearray, $rawimagearray[$i][0]);
}

// put image attributes in another array
$imageinfo = array();
foreach($imagearray as $img_tag) {

    preg_match_all('/(src|width|height)=("[^"]*")/i',$img_tag, $imageinfo[$img_tag]);
}

// combine everything into one array
$AllImageInfo = array();
foreach($imagearray as $img_tag) {

    $ImageSource = str_replace('"', '', $imageinfo[$img_tag][2][0]);
    $OrignialWidth = str_replace('"', '', $imageinfo[$img_tag][2][1]);
    $OrignialHeight = str_replace('"', '', $imageinfo[$img_tag][2][2]);

    $NewWidth = $OrignialWidth; 
    $NewHeight = $OrignialHeight;
    $AdjustDimensions = "F";

    if($OrignialWidth > $MaximumWidth) { 
        $diff = $OrignialWidth-$MaximumHeight; 
        $percnt_reduced = (($diff/$OrignialWidth)*100); 
        $NewHeight = floor($OrignialHeight-(($percnt_reduced*$OrignialHeight)/100)); 
        $NewWidth = floor($OrignialWidth-$diff); 
        $AdjustDimensions = "T";
    }

    if($OrignialHeight > $MaximumHeight) { 
        $diff = $OrignialHeight-$MaximumWidth; 
        $percnt_reduced = (($diff/$OrignialHeight)*100); 
        $NewWidth = floor($OrignialWidth-(($percnt_reduced*$OrignialWidth)/100)); 
        $NewHeight= floor($OrignialHeight-$diff); 
        $AdjustDimensions = "T";
    } 

    $thisImageInfo = array('OriginalImageTag' => $img_tag , 'ImageSource' => $ImageSource , 'OrignialWidth' => $OrignialWidth , 'OrignialHeight' => $OrignialHeight , 'NewWidth' => $NewWidth , 'NewHeight' => $NewHeight, 'AdjustDimensions' => $AdjustDimensions);
    array_push($AllImageInfo, $thisImageInfo);
}

// build array of before and after tags
$ImageBeforeAndAfter = array();
for ($i = 0; $i < count($AllImageInfo); $i++) {

    if($AllImageInfo[$i]['AdjustDimensions'] == "T") {
        $NewImageTag = str_ireplace('width="' . $AllImageInfo[$i]['OrignialWidth'] . '"', 'width="' . $AllImageInfo[$i]['NewWidth'] . '"', $AllImageInfo[$i]['OriginalImageTag']);
        $NewImageTag = str_ireplace('height="' . $AllImageInfo[$i]['OrignialHeight'] . '"', 'height="' . $AllImageInfo[$i]['NewHeight'] . '"', $NewImageTag);

        $thisImageBeforeAndAfter = array('OriginalImageTag' => $AllImageInfo[$i]['OriginalImageTag'] , 'NewImageTag' => $NewImageTag);
        array_push($ImageBeforeAndAfter, $thisImageBeforeAndAfter);
    }
}

// execute search and replace
for ($i = 0; $i < count($ImageBeforeAndAfter); $i++) {
    $HTMLContent = str_ireplace($ImageBeforeAndAfter[$i]['OriginalImageTag'],$ImageBeforeAndAfter[$i]['NewImageTag'], $HTMLContent);
}

return $HTMLContent;

}

For those that would prefer a graphical workflow tool, RapidMiner (FOSS) has a nice web crawling and scraping facility.

Here's a series of videos:

http://vancouverdata.blogspot.com/2011/04/rapidminer-web-crawling-rapid-miner-web.html

Note that starting Python 3.8, and the introduction of assignment expressions (PEP 572) (:= operator), it's possible to improve a bit on Krzysztof Krason's solution by capturing the match result directly within the if condition as a variable and re-use it in the condition's body:

# pattern = '<title>(.*)</title>'
# text = '<title>hello</title>'
if match := re.search(pattern, text, re.IGNORECASE):
  title = match.group(1)
# hello

There is Pattern library for data mining.

http://www.clips.ua.ac.be/pages/pattern-web

You can even decide what tags to keep:

s = URL('http://www.clips.ua.ac.be').download()
s = plaintext(s, keep={'h1':[], 'h2':[], 'strong':[], 'a':['href']})
print s

Here is another solution you could have used. It is working in my app.

      @Override
      public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        android.support.v7.app.ActionBar actionBar =getSupportActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);            
        setContentView(R.layout.activity_main)

Then you can get rid of that import for the one line ActionBar use.

You need to use data: {title: title} to POST it correctly.

In the PHP code you need to echo the value instead of returning it.

To decode json, you have to pass the json string. Currently you're trying to pass an object:

>>> response = urlopen(url)
>>> response
<addinfourl at 2146100812 whose fp = <socket._fileobject object at 0x7fe8cc2c>>

You can fetch the data with response.read().

Inspired from this post and that post, I use this code to generate and verify hashed salted passwords. It only uses JDK provided classes, no external dependency.

The process is:

• you create a salt with getNextSalt
• you ask the user his password and use the hash method to generate a salted and hashed password. The method returns a byte[] which you can save as is in a database with the salt
• to authenticate a user, you ask his password, retrieve the salt and hashed password from the database and use the isExpectedPassword method to check that the details match

/**
 * A utility class to hash passwords and check passwords vs hashed values. It uses a combination of hashing and unique
 * salt. The algorithm used is PBKDF2WithHmacSHA1 which, although not the best for hashing password (vs. bcrypt) is
 * still considered robust and <a href="https://security.stackexchange.com/a/6415/12614"> recommended by NIST </a>.
 * The hashed value has 256 bits.
 */
public class Passwords {

  private static final Random RANDOM = new SecureRandom();
  private static final int ITERATIONS = 10000;
  private static final int KEY_LENGTH = 256;

  /**
   * static utility class
   */
  private Passwords() { }

  /**
   * Returns a random salt to be used to hash a password.
   *
   * @return a 16 bytes random salt
   */
  public static byte[] getNextSalt() {
    byte[] salt = new byte[16];
    RANDOM.nextBytes(salt);
    return salt;
  }

  /**
   * Returns a salted and hashed password using the provided hash.<br>
   * Note - side effect: the password is destroyed (the char[] is filled with zeros)
   *
   * @param password the password to be hashed
   * @param salt     a 16 bytes salt, ideally obtained with the getNextSalt method
   *
   * @return the hashed password with a pinch of salt
   */
  public static byte[] hash(char[] password, byte[] salt) {
    PBEKeySpec spec = new PBEKeySpec(password, salt, ITERATIONS, KEY_LENGTH);
    Arrays.fill(password, Character.MIN_VALUE);
    try {
      SecretKeyFactory skf = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
      return skf.generateSecret(spec).getEncoded();
    } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
      throw new AssertionError("Error while hashing a password: " + e.getMessage(), e);
    } finally {
      spec.clearPassword();
    }
  }

  /**
   * Returns true if the given password and salt match the hashed value, false otherwise.<br>
   * Note - side effect: the password is destroyed (the char[] is filled with zeros)
   *
   * @param password     the password to check
   * @param salt         the salt used to hash the password
   * @param expectedHash the expected hashed value of the password
   *
   * @return true if the given password and salt match the hashed value, false otherwise
   */
  public static boolean isExpectedPassword(char[] password, byte[] salt, byte[] expectedHash) {
    byte[] pwdHash = hash(password, salt);
    Arrays.fill(password, Character.MIN_VALUE);
    if (pwdHash.length != expectedHash.length) return false;
    for (int i = 0; i < pwdHash.length; i++) {
      if (pwdHash[i] != expectedHash[i]) return false;
    }
    return true;
  }

  /**
   * Generates a random password of a given length, using letters and digits.
   *
   * @param length the length of the password
   *
   * @return a random password
   */
  public static String generateRandomPassword(int length) {
    StringBuilder sb = new StringBuilder(length);
    for (int i = 0; i < length; i++) {
      int c = RANDOM.nextInt(62);
      if (c <= 9) {
        sb.append(String.valueOf(c));
      } else if (c < 36) {
        sb.append((char) ('a' + c - 10));
      } else {
        sb.append((char) ('A' + c - 36));
      }
    }
    return sb.toString();
  }
}

You could use the fileinput module:

import fileinput

for line in fileinput.input():
    pass

fileinput will loop through all the lines in the input specified as file names given in command-line arguments, or the standard input if no arguments are provided.

Note: line will contain a trailing newline; to remove it use line.rstrip()

1. Don't write a toString() method. This is not Java. Implement the stream operator for your class.

2. Prefer using the standard algorithms over writing your own loop. In this situation, std::for_each() provides a nice interface to what you want to do.

3. If you must use a loop, but don't intend to change the data, prefer const_iterator over iterator. That way, if you accidently try and change the values, the compiler will warn you.

Then:

std::ostream& operator<<(std::ostream& str,something const& data)
{
    data.print(str)
    return str;
}

void something::print(std::ostream& str) const
{
    std::for_each(table.begin(),table.end(),PrintData(str));
}

Then when you want to print it, just stream the object:

int main()
{
    something    bob;
    std::cout << bob;
}

If you actually need a string representation of the object, you can then use lexical_cast.

int main()
{
    something    bob;

    std::string  rope = boost::lexical_cast<std::string>(bob);
}

The details that need to be filled in.

class somthing
{
    typedef std::map<std::string,std::string>    DataMap;
    struct PrintData
    {
         PrintData(std::ostream& str): m_str(str) {}
         void operator()(DataMap::value_type const& data) const
         {
             m_str << data.first << "=" << data.second << "\n";
         }
         private:  std::ostream& m_str;
    };
    DataMap    table;
    public:
        void something::print(std::ostream& str);
};

myvariable=$(mysql database -u $user -p$password | SELECT A, B, C FROM table_a)

without the blank space after -p. Its trivial, but without don't work.

This specifies the default collation for the database. Every text field that you create in tables in the database will use that collation, unless you specify a different one.

A database always has a default collation. If you don't specify any, the default collation of the SQL Server instance is used.

The name of the collation that you use shows that it uses the Latin1 code page 1, is case insensitive (CI) and accent sensitive (AS). This collation is used in the USA, so it will contain sorting rules that are used in the USA.

The collation decides how text values are compared for equality and likeness, and how they are compared when sorting. The code page is used when storing non-unicode data, e.g. varchar fields.

#!/usr/bin/env bash

# Redirect stdout ( > ) into a named pipe ( >() ) running "tee"
exec > >(tee -i logfile.txt)

# Without this, only stdout would be captured - i.e. your
# log file would not contain any error messages.
# SEE (and upvote) the answer by Adam Spiers, which keeps STDERR
# as a separate stream - I did not want to steal from him by simply
# adding his answer to mine.
exec 2>&1

echo "foo"
echo "bar" >&2

Note that this is bash, not sh. If you invoke the script with sh myscript.sh, you will get an error along the lines of syntax error near unexpected token '>'.

If you are working with signal traps, you might want to use the tee -i option to avoid disruption of the output if a signal occurs. (Thanks to JamesThomasMoon1979 for the comment.)

Tools that change their output depending on whether they write to a pipe or a terminal (ls using colors and columnized output, for example) will detect the above construct as meaning that they output to a pipe.

There are options to enforce the colorizing / columnizing (e.g. ls -C --color=always). Note that this will result in the color codes being written to the logfile as well, making it less readable.

@{
   List<SelectListItem> listItems= new List<SelectListItem>();
   listItems.Add(new SelectListItem
        {
          Text = "Exemplo1",
          Value = "Exemplo1"
        });
   listItems.Add(new SelectListItem
        {
            Text = "Exemplo2",
            Value = "Exemplo2",
            Selected = true
        });
   listItems.Add(new SelectListItem
        {
            Text = "Exemplo3",
            Value = "Exemplo3"
        });
}

@Html.DropDownListFor(model => model.tipo, listItems, "-- Select Status --")

It is sometimes worth using an enum to name the bits:

enum ThingFlags = {
  ThingMask  = 0x0000,
  ThingFlag0 = 1 << 0,
  ThingFlag1 = 1 << 1,
  ThingError = 1 << 8,
}

Then use the names later on. I.e. write

thingstate |= ThingFlag1;
thingstate &= ~ThingFlag0;
if (thing & ThingError) {...}

to set, clear and test. This way you hide the magic numbers from the rest of your code.

Other than that I endorse Jeremy's solution.

First you don't need a transaction since you are just querying select statements and since they are both select statement you can just combine them into one query separated by space and use Dataset to get the all the tables retrieved. Its better this way since you made only one transaction to the database because database transactions are expensive hence your code is faster. Second of you really have to use a transaction, just assign the transaction to the SqlCommand like

sqlCommand.Transaction = transaction;

And also just use one SqlCommand don't declare more than one, since variables consume space and we are also on the topic of making your code more efficient, do that by assigning commandText to different query string and executing them like

sqlCommand.CommandText = "select * from table1";
sqlCommand.ExecuteNonQuery();
sqlCommand.CommandText = "select * from table2";
sqlCommand.ExecuteNonQuery();

i'm impressed of the deep discussion.

my 2 cents:

from datetime import datetime import time

the timestamp in utc is:

timestamp = \
(datetime.utcnow() - datetime(1970,1,1)).total_seconds()

or,

timestamp = time.time()

if now results from datetime.now(), in the same DST

utcoffset = (datetime.now() - datetime.utcnow()).total_seconds()
timestamp = \
(now - datetime(1970,1,1)).total_seconds() - utcoffset

If the destination table does exist but you don't want to specify column names:

DECLARE @COLUMN_LIST NVARCHAR(MAX);
DECLARE @SQL_INSERT NVARCHAR(MAX);

SET @COLUMN_LIST = (SELECT DISTINCT
    SUBSTRING(
        (
            SELECT ', table1.' + SYSCOL1.name  AS [text()]
            FROM sys.columns SYSCOL1
            WHERE SYSCOL1.object_id = SYSCOL2.object_id and SYSCOL1.is_identity <> 1
            ORDER BY SYSCOL1.object_id
            FOR XML PATH ('')
        ), 2, 1000)
FROM
    sys.columns SYSCOL2
WHERE
    SYSCOL2.object_id = object_id('dbo.TableOne') )

SET @SQL_INSERT =  'INSERT INTO dbo.TableTwo SELECT ' + @COLUMN_LIST + ' FROM dbo.TableOne table1 WHERE col3 LIKE ' + @search_key
EXEC sp_executesql @SQL_INSERT

Permanent:

UPDATE
  MyTable
SET
  MyColumn = UPPER(MyColumn)

Temporary:

SELECT
  UPPER(MyColumn) AS MyColumn
FROM
  MyTable

Eclipse 3.6 allows you to turn off formatting by placing a special comment, like

// @formatter:off
...
// @formatter:on

The on/off features have to be turned "on" in Eclipse preferences: Java > Code Style > Formatter. Click on Edit, Off/On Tags, enable Enable Off/On tags.

It's also possible to change the magic strings in the preferences — check out the Eclipse 3.6 docs here.

More Information

Java > Code Style > Formatter > Edit > Off/On Tags

This preference allows you to define one tag to disable and one tag to enable the formatter (see the Off/On Tags tab in your formatter profile):

You also need to enable the flags from Java Formatting

I am just providing another case where you can get this error message. The solution will be the same as Adam has mentioned above. This is from a real code and I renamed the class name.

class FooReader {
  public:
     /** Constructor */
     FooReader() : d(new FooReaderPrivate(this)) { }  // will not compile here
     .......
  private:
     FooReaderPrivate* d;
};

====== In a separate file =====
class FooReaderPrivate {
  public:
     FooReaderPrivate(FooReader*) : parent(p) { }
  private:
     FooReader* parent;
};

The above will no pass the compiler and get error: invalid use of incomplete type FooReaderPrivate. You basically have to put the inline portion into the *.cpp implementation file. This is OK. What I am trying to say here is that you may have a design issue. Cross reference of two classes may be necessary some cases, but I would say it is better to avoid them at the start of the design. I would be wrong, but please comment then I will update my posting.

For starters, memory_get_peak_usage() will not be helpful here. It will only return the amount of memory which was allocated, and that is the same number which caused the error.

memory_get_usage will return the active amount of memory which is being allocated when it is called.

ini_set('memory_limit', '256M'); will set the maximum allowance of PHP's footprint on your systems Memory. If you are getting OOM at 768K, upping it will not fix the problem.

There is no indication as to what version of PHP you are using, but I would suggest an upgrade immediately. There are several bugs where Zend's Memory Manager fails to deallocate memory, which would lead you exactly to the same problem.

Are both your local server and your production server running the same version of OS, the same long bit and the same version of PHP? The answer will be no.

If it is unrelated to the windows malloc() issue, being it is a sub domain and probably within a VirtualHost, and allocating only 768k, it almost sounds like an OS issue.

Run tasklist from the command prompt when you access your script. Do you see an additional Apache thread, or Memory usage across the processes spike?

One last idea is, run flush() and/or ob_flush(); after each loop for the table row/column. This should clear your buffer and save you some memory in the event this is where the issue is occurring.

I know that the question is too old, anyway:

select a, b from mytable group by a, b

will give your all the combinations.

Whats about:

$string = trim( str_replace( PHP_EOL, ' ', $string ) );

This should be a pretty robust solution because \n doesn't work correctly in all systems if i'm not wrong ...

TL;DR) See this table: https://www.tensorflow.org/install/source#gpu

Generally:

Check the CUDA version:

cat /usr/local/cuda/version.txt

and cuDNN version:

grep CUDNN_MAJOR -A 2 /usr/local/cuda/include/cudnn.h

and install a combination as given below in the images or here.

The following images and the link provide an overview of the officially supported/tested combinations of CUDA and TensorFlow on Linux, macOS and Windows:

Minor configurations:

Since the given specifications below in some cases might be too broad, here is one specific configuration that works:

• tensorflow-gpu==1.12.0
• cuda==9.0
• cuDNN==7.1.4

The corresponding cudnn can be downloaded here.

Tested build configurations

Please refer to https://www.tensorflow.org/install/source#gpu for a up-to-date compatibility chart (for official TF wheels).

(figures updated May 20, 2020)

Linux GPU

Linux CPU

macOS GPU

macOS CPU

Windows GPU

Windows CPU

Updated as of Dec 5 2020: For the updated information please refer Link for Linux and Link for Windows.

Solution With Less XAML and More C#

If you define the ListView in XAML:

<ListView x:Name="listView"/>

Then you can add columns and populate it in C#:

public Window()
{
    // Initialize
    this.InitializeComponent();

    // Add columns
    var gridView = new GridView();
    this.listView.View = gridView;
    gridView.Columns.Add(new GridViewColumn { 
        Header = "Id", DisplayMemberBinding = new Binding("Id") });
    gridView.Columns.Add(new GridViewColumn { 
        Header = "Name", DisplayMemberBinding = new Binding("Name") });

    // Populate list
    this.listView.Items.Add(new MyItem { Id = 1, Name = "David" });
}

See definition of MyItem below.

Solution With More XAML and less C#

However, it's easier to define the columns in XAML (inside the ListView definition):

<ListView x:Name="listView">
    <ListView.View>
        <GridView>
            <GridViewColumn Header="Id" DisplayMemberBinding="{Binding Id}"/>
            <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}"/>
        </GridView>
    </ListView.View>
</ListView>

And then just populate the list in C#:

public Window()
{
    // Initialize
    this.InitializeComponent();

    // Populate list
    this.listView.Items.Add(new MyItem { Id = 1, Name = "David" });
}

See definition of MyItem below.

MyItem Definition

MyItem is defined like this:

public class MyItem
{
    public int Id { get; set; }

    public string Name { get; set; }
}

If you are inside a blade template

{{ URL::to('/') }}/images/stackoverflow.png

You have to validate the connection.

If you use Oracle it is likely that you use Oracle´s Universal Connection Pool. The following assumes that you do so.

The easiest way to validate the connection is to tell Oracle that the connection must be validated while borrowing it. This can be done with

pool.setValidateConnectionOnBorrow(true);

But it works only if you hold the connection for a short period. If you borrow the connection for a longer time, it is likely that the connection gets broken while you hold it. In that case you have to validate the connection explicitly with

if (connection == null || !((ValidConnection) connection).isValid())

See the Oracle documentation for further details.

It works for me when I set the delegate

self.navigationController.interactivePopGestureRecognizer.delegate = self;

and then implement

Swift

extension MyViewController:UIGestureRecognizerDelegate {
    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldBeRequiredToFailBy otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }
}

Objective-C

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    return YES;
}

The motivation is to write code that doesn't depend explicitly on Spring. That way, if you choose to switch containers, you don't have to rewrite any code.

Think of the container as something is invisible to your code, magically providing for its needs, without being asked.

Dependency injection is a counterpoint to the "service locator" pattern. If you are going to lookup dependencies by name, you might as well get rid of the DI container and use something like JNDI.

Knowing the differences between SVG and Canvas would be helpful in selecting the right one.

Canvas

• Resolution dependent
• No support for event handlers
• Poor text rendering capabilities
• You can save the resulting image as .png or .jpg
• Well suited for graphic-intensive games

SVG

• Resolution independent
• Support for event handlers
• Best suited for applications with large rendering areas (Google Maps)
• Slow rendering if complex (anything that uses the DOM a lot will be slow)
• Not suited for game application

Instead of using 2 separate queries, you can use aggregate() in a single query:

Aggregate "$facet" can be fetch more quickly, the Total Count and the Data with skip & limit

    db.collection.aggregate([

      //{$sort: {...}}

      //{$match:{...}}

      {$facet:{

        "stage1" : [ {"$group": {_id:null, count:{$sum:1}}} ],

        "stage2" : [ { "$skip": 0}, {"$limit": 2} ]
  
      }},
     
     {$unwind: "$stage1"},
  
      //output projection
     {$project:{
        count: "$stage1.count",
        data: "$stage2"
     }}

 ]);

output as follows:-

[{
     count: 50,
     data: [
        {...},
        {...}
      ]
 }]

Also, have a look at https://docs.mongodb.com/manual/reference/operator/aggregation/facet/

There is a nice library available for this

    implementation 'uk.co.chrisjenx:calligraphy:2.3.0'

copy will do this. Please check the php-manual. Simple Google search should answer your last two questions ;)

You can also load the context while defining the servlet itself (WebApplicationContext)

  <servlet>
    <servlet-name>admin</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>
                /WEB-INF/spring/*.xml
            </param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>admin</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

rather than (ApplicationContext)

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/applicationContext*.xml</param-value>
</context-param>

<listener>
   <listener-class>
        org.springframework.web.context.ContextLoaderListener
   </listener-class>
</listener> 

or can do both together.

Drawback of just using WebApplicationContext is that it will load context only for this particular Spring entry point (DispatcherServlet) where as with above mentioned methods context will be loaded for multiple entry points (Eg. Webservice Servlet, REST servlet etc)

Context loaded by ContextLoaderListener will infact be a parent context to that loaded specifically for DisplacherServlet . So basically you can load all your business service, data access or repository beans in application context and separate out your controller, view resolver beans to WebApplicationContext.

The very first alias I made once I started customizing my profile in PowerShell was 'which'.

New-Alias which get-command

To add this to your profile, type this:

"`nNew-Alias which get-command" | add-content $profile

The `n at the start of the last line is to ensure it will start as a new line.

This won't be the answer for everyone, since it is not supported in IE7-, but you could use it and then use an alternate answer for IE7-. It is display: table, display: table-row and display: table-cell. Note that this is not using tables for layout, but styling divs so that things line up nicely with out all the hassle from above. Mine is an html5 app, so it works great.

This article shows an example: http://www.sitepoint.com/table-based-layout-is-the-next-big-thing/

Here is what your stylesheet will look like:

 .container {
    display: table;
    width:100%;
 }

 .left-column {
    display: table-cell;
 }

 .right-column {
    display: table-cell;
    width: 200px;
 }

Hazar is right with his \t. Here's the full list of escape characters for C#:

\' for a single quote.

\" for a double quote.

\\ for a backslash.

\0 for a null character.

\a for an alert character.

\b for a backspace.

\f for a form feed.

\n for a new line.

\r for a carriage return.

\t for a horizontal tab.

\v for a vertical tab.

\uxxxx for a unicode character hex value (e.g. \u0020).

\x is the same as \u, but you don't need leading zeroes (e.g. \x20).

\Uxxxxxxxx for a unicode character hex value (longer form needed for generating surrogates).

Note that you can use the Polynomial class directly to do the fitting and return a Polynomial instance.

from numpy.polynomial import Polynomial

p = Polynomial.fit(x, y, 4)
plt.plot(*p.linspace())

p uses scaled and shifted x values for numerical stability. If you need the usual form of the coefficients, you will need to follow with

pnormal = p.convert(domain=(-1, 1))

If you just want to tack something on by hand, then the sed answer will work for you. If instead the text is in file(s) (say file1.txt and file2.txt):

Using Perl:

perl -e 'open(OUT, ">>", "outfile.txt"); print OUT while (<>);' file*.txt

N.B. while the >> may look like an indication of redirection, it is just the file open mode, in this case "append".

In my case it was trying to call JSON.parse() on an AJAX variable before the XHRResponse came back. EG:

var response = $.get(URL that returns a valid JSON string);
var data = JSON.parse(response.responseText);

I replaced that with an example out of the jQuery site for $.get:

<script type="text/javascript"> 
    var jqxhr = $.get( "https://jira.atlassian.com/rest/api/2/project", function() {
          alert( "success" );
        })
          .done(function() {
//insert code to assign the projects from Jira to a div.
                jqxhr = jqxhr.responseJSON;
                console.log(jqxhr);
                var div = document.getElementById("products");
                for (i = 0; i < jqxhr.length; i++) {
                    console.log(jqxhr[i].name);
                    div.innerHTML += "<b>Product: " + jqxhr[i].name + "</b><BR/>Key: " + jqxhr[i].key + "<BR/>";
                }
                console.log(div);
            alert( "second success" );
          })
          .fail(function() {
            alert( "error" );
          })
          .always(function() {
            alert( "finished" );
          });

        // Perform other work here ...

        // Set another completion function for the request above
        jqxhr.always(function() {
          alert( "second finished" );
        });
</script>

I'm creating html5 mobile apps and I noticed that the idle, bounds_changed and tilesloaded events fire when the map object is created and rendered (even if it is not visible).

To make my map run code when it is shown for the first time I did the following:

google.maps.event.addListenerOnce(map, 'tilesloaded', function(){
    //this part runs when the mapobject is created and rendered
    google.maps.event.addListenerOnce(map, 'tilesloaded', function(){
        //this part runs when the mapobject shown for the first time
    });
});

You should use a StringBuilder:

StringBuilder contentBuilder = new StringBuilder();
try {
    BufferedReader in = new BufferedReader(new FileReader("mypage.html"));
    String str;
    while ((str = in.readLine()) != null) {
        contentBuilder.append(str);
    }
    in.close();
} catch (IOException e) {
}
String content = contentBuilder.toString();

In the Latest Xcode version 12+ Follow the below steps, I found here https://handyopinion.com/solution-failed-to-load-info-plist-from-bundle-at-path-in-xcode/

1.

2.

It will navigate to the Derived Data folder then you can remove the content of the folder.

Some Theory

$ is the name of a function like any other name you give to a function. Anyone can create a function in JavaScript and name it $ as shown below:

$ = function() { 
        alert('I am in the $ function');
    }

JQuery is a very famous JavaScript library and they have decided to put their entire framework inside a function named jQuery. To make it easier for people to use the framework and reduce typing the whole word jQuery every single time they want to call the function, they have also created an alias for it. That alias is $. Therefore $ is the name of a function. Within the jQuery source code, you can see this yourself:

window.jQuery = window.$ = jQuery;

Answer To Your Question

So what is $(function() { });?

Now that you know that $ is the name of the function, if you are using the jQuery library, then you are calling the function named $ and passing the argument function() {} into it. The jQuery library will call the function at the appropriate time. When is the appropriate time? According to jQuery documentation, the appropriate time is once all the DOM elements of the page are ready to be used.

The other way to accomplish this is like this:

$(document).ready(function() { });

As you can see this is more verbose so people prefer $(function() { })

So the reason why some functions cannot be called, as you have noticed, is because those functions do not exist yet. In other words the DOM has not loaded yet. But if you put them inside the function you pass to $ as an argument, the DOM is loaded by then. And thus the function has been created and ready to be used.

Another way to interpret $(function() { }) is like this:

Hey $ or jQuery, can you please call this function I am passing as an argument once the DOM has loaded?

Acording with the documentation, the method getEntity in Jax rs 2.0 return a InputStream. If you need to convert to InputStream to String with JSON format, you need to cast the two formats. For example in my case, I implemented the next method:

    private String processResponse(Response response) {
    if (response.getEntity() != null) {
        try {
            InputStream salida = (InputStream) response.getEntity();
            StringWriter writer = new StringWriter();
            IOUtils.copy(salida, writer, "UTF-8");
            return writer.toString();
        } catch (IOException ex) {
            LOG.log(Level.SEVERE, null, ex);
        }
    }
    return null;
}

why I implemented this method. Because a read in differets blogs that many developers they have the same problem whit the version in jaxrs using the next methods

String output = response.readEntity(String.class)

and

String output = response.getEntity(String.class)

The first works using jersey-client from com.sun.jersey library and the second found using the jersey-client from org.glassfish.jersey.core.

This is the error that was being presented to me: org.glassfish.jersey.client.internal.HttpUrlConnector$2 cannot be cast to java.lang.String

I use the following maven dependency:

<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>2.28</version>

What I do not know is why the readEntity method does not work.I hope you can use the solution.

Carlos Cepeda

// Difference in days, hours, and minutes.

TimeSpan ts = EndDate - StartDate;

// Difference in days.

int differenceInDays = ts.Days; // This is in int
double differenceInDays= ts.TotalDays; // This is in double

// Difference in Hours.
int differenceInHours = ts.Hours; // This is in int
double differenceInHours= ts.TotalHours; // This is in double

// Difference in Minutes.
int differenceInMinutes = ts.Minutes; // This is in int
double differenceInMinutes= ts.TotalMinutes; // This is in double

You can also get the difference in seconds, milliseconds and ticks.

create a global temp table with a GUID in the name dynamically. Then you can work with it in your code, via dyn sql, without worry that another process calling same sproc will use it. This is useful when you dont know what to expect from the underlying selected table each time it runs so you cannot created a temp table explicitly beforehand. ie - you need to use SELECT * INTO syntax

DECLARE @TmpGlobalTable varchar(255) = 'SomeText_' + convert(varchar(36),NEWID())

-- select @TmpGlobalTable 

-- build query
    SET @Sql = 
        'SELECT * INTO [##' + @TmpGlobalTable + '] FROM SomeTable'
EXEC (@Sql)
EXEC ('SELECT * FROM [##' + @TmpGlobalTable + '] ')
EXEC ('DROP TABLE [##' + @TmpGlobalTable + ']')
PRINT 'Dropped Table ' + @TmpGlobalTable 

html code 

file name  : view.html


    <!DOCTYPE html>
    <html>
    <head>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
    <script>
    $(document).ready(function(){
        $("#mySelect").change(function(){
            selected = $("#mySelect option:selected").text()
            $.ajax({
                type: 'POST',
                dataType: 'json',
                contentType: 'application/json; charset=utf-8',
                url: '/view/',
                data: {
                       'fruit': selected
                      },
                success: function(result) {
                        document.write(result)
                        }
        });
      });
    });
    </script>
    </head>
    <body>

    <form>
        <br>
    Select your favorite fruit:
    <select id="mySelect">
      <option value="apple" selected >Select fruit</option>
      <option value="apple">Apple</option>
      <option value="orange">Orange</option>
      <option value="pineapple">Pineapple</option>
      <option value="banana">Banana</option>
    </select>
    </form>
    </body>
    </html>

Django code:


Inside views.py


def view(request):

    if request.method == 'POST':
        print request.body
        data = request.body
        return HttpResponse(json.dumps(data))

Check out the language reference:

http://msdn.microsoft.com/en-us/library/aa195811(office.11).aspx

expression.Open(FileName, UpdateLinks, ReadOnly, Format, Password, WriteResPassword, IgnoreReadOnlyRecommended, Origin, Delimiter, Editable, Notify, Converter, AddToMru, Local, CorruptLoad)

Bottom line is that you'll have to write a new css rule for that.

Depending on which bundle of Twitter Bootstrap you're using, you should have variables for the various colours.

Try something like:

.table tbody tr > td {
  &.success { background-color: $green; }
  &.info { background-color: $blue; }
  ...
}

Surely there's a way to use extend or the LESS equivalent to avoid repeating the same styling.

As the previous comment mentioned you can't do this in Postman. however, I found this Chrome app in the web store. It is very simple, but it's working really well with my local web socket connections.

Smart Websocket Client

ES6 with Async / Await ,

let meaningOfLife = false;
async function waitForMeaningOfLife(){
   while (true){
        if (meaningOfLife) { console.log(42); return };
        await null; // prevents app from hanging
   }
}
waitForMeaningOfLife();
setTimeout(()=>meaningOfLife=true,420)

The task can be solved using the following piece of code, [0:28] being interval where the name is being held, while [29:34] contains the actual pid.

import os

program_pid = 0
program_name = "notepad.exe"

task_manager_lines = os.popen("tasklist").readlines()
for line in task_manager_lines:
    try:
        if str(line[0:28]) == program_name + (28 - len(program_name) * ' ': #so it includes the whitespaces
            program_pid = int(line[29:34])
            break
    except:
        pass

print(program_pid)

I know this is rather old, but I was looking for the same answer and found that the chosen solution did not obey the tabIndex. I have hence modified it to the following which works for me. Please note that maxTabNumber is a global variable that holds the maximum number of tabbable input fields

  $('input').on("keypress", function (e) {_x000D_
                if (e.keyCode == 13) {_x000D_
                    var inputs = $(this).parents("form").eq(0).find(":input");_x000D_
                    var idx = inputs.index(this);_x000D_
_x000D_
                    var tabIndex = parseInt($(this).attr("tabindex"));_x000D_
                    tabIndex = (tabIndex + 1) % (maxTabNumber + 1);_x000D_
                    if (tabIndex == 0) { tabIndex = 1; }_x000D_
                    $('[tabindex=' + tabIndex + ']').focus();_x000D_
                    $('[tabindex=' + tabIndex + ']').select();_x000D_
          _x000D_
                    return false;_x000D_
                }_x000D_
    });

if you are windows user, then it's in C:\Users\your_user_name\Envs. You can delete it from there.

Also try in command prompt rmvirtualenv environment name.

I tried with command prompt so it said deleted but it was still existed. So i manually delete it.

I had to do the same thing that @Luxspes did above..and I am using Spring 4.2.6. Spent quite some time figuring why is ByteArrayResource getting transferred from client to server, but the server is not recognizing it.

ByteArrayResource contentsAsResource = new ByteArrayResource(byteArr){
            @Override
            public String getFilename(){
                return filename;
            }
        };

I want to offer an alternate solution for perhaps a slightly different case, since many of my searches for answers kept leading me to this thread.

My case - I'm creating/adding pages dynamically and sliding them into a ViewPager, but when rotated (onConfigurationChange) I end up with a new page because of course OnCreate is called again. But I want to keep reference to all the pages that were created prior to the rotation.

Problem - I don't have unique identifiers for each fragment I create, so the only way to reference was to somehow store references in an Array to be restored after the rotation/configuration change.

Workaround - The key concept was to have the Activity (which displays the Fragments) also manage the array of references to existing Fragments, since this activity can utilize Bundles in onSaveInstanceState

public class MainActivity extends FragmentActivity

So within this Activity, I declare a private member to track the open pages

private List<Fragment> retainedPages = new ArrayList<Fragment>();

This is updated everytime onSaveInstanceState is called and restored in onCreate

@Override
protected void onSaveInstanceState(Bundle outState) {
    retainedPages = _adapter.exportList();
    outState.putSerializable("retainedPages", (Serializable) retainedPages);
    super.onSaveInstanceState(outState);
}

...so once it's stored, it can be retrieved...

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

    if (savedInstanceState != null) {
        retainedPages = (List<Fragment>) savedInstanceState.getSerializable("retainedPages");
    }
    _mViewPager = (CustomViewPager) findViewById(R.id.viewPager);
    _adapter = new ViewPagerAdapter(getApplicationContext(), getSupportFragmentManager());
    if (retainedPages.size() > 0) {
        _adapter.importList(retainedPages);
    }
    _mViewPager.setAdapter(_adapter);
    _mViewPager.setCurrentItem(_adapter.getCount()-1);
}

These were the necessary changes to the main activity, and so I needed the members and methods within my FragmentPagerAdapter for this to work, so within

public class ViewPagerAdapter extends FragmentPagerAdapter

an identical construct (as shown above in MainActivity )

private List<Fragment> _pages = new ArrayList<Fragment>();

and this syncing (as used above in onSaveInstanceState) is supported specifically by the methods

public List<Fragment> exportList() {
    return _pages;
}

public void importList(List<Fragment> savedPages) {
    _pages = savedPages;
}

And then finally, in the fragment class

public class CustomFragment extends Fragment

in order for all this to work, there were two changes, first

public class CustomFragment extends Fragment implements Serializable

and then adding this to onCreate so Fragments aren't destroyed

setRetainInstance(true);

I'm still in the process of wrapping my head around Fragments and Android life cycle, so caveat here is there may be redundancies/inefficiencies in this method. But it works for me and I hope might be helpful for others with cases similar to mine.

Dot notation is always preferable. If you are using some "smarter" IDE or text editor, it will show undefined names from that object. Use brackets notation only when you have the name with like dashes or something similar invalid. And also if the name is stored in a variable.

is it possible to export without looping through all records

For a range in Excel with a large number of rows you may see some performance improvement if you create an Access.Application object in Excel and then use it to import the Excel data into Access. The code below is in a VBA module in the same Excel document that contains the following test data

Option Explicit

Sub AccImport()
    Dim acc As New Access.Application
    acc.OpenCurrentDatabase "C:\Users\Public\Database1.accdb"
    acc.DoCmd.TransferSpreadsheet _
            TransferType:=acImport, _
            SpreadSheetType:=acSpreadsheetTypeExcel12Xml, _
            TableName:="tblExcelImport", _
            Filename:=Application.ActiveWorkbook.FullName, _
            HasFieldNames:=True, _
            Range:="Folio_Data_original$A1:B10"
    acc.CloseCurrentDatabase
    acc.Quit
    Set acc = Nothing
End Sub

Give each input a name attribute. Only the clicked input's name attribute will be sent to the server.

<input type="submit" name="publish" value="Publish">
<input type="submit" name="save" value="Save">

And then

<?php
    if (isset($_POST['publish'])) {
        # Publish-button was clicked
    }
    elseif (isset($_POST['save'])) {
        # Save-button was clicked
    }
?>

Edit: Changed value attributes to alt. Not sure this is the best approach for image buttons though, any particular reason you don't want to use input[type=image]?

Edit: Since this keeps getting upvotes I went ahead and changed the weird alt/value code to real submit inputs. I believe the original question asked for some sort of image buttons but there are so much better ways to achieve that nowadays instead of using input[type=image].

Key input is a predefined event. You can catch events by attaching event_sequence(s) to event_handle(s) by using one or multiple of the existing binding methods(bind, bind_class, tag_bind, bind_all). In order to do that:

1. define an event_handle method
2. pick an event(event_sequence) that fits your case from an events list

When an event happens, all of those binding methods implicitly calls the event_handle method while passing an Event object, which includes information about specifics of the event that happened, as the argument.

In order to detect the key input, one could first catch all the '<KeyPress>' or '<KeyRelease>' events and then find out the particular key used by making use of event.keysym attribute.

Below is an example using bind to catch both '<KeyPress>' and '<KeyRelease>' events on a particular widget(root):

try:                        # In order to be able to import tkinter for
    import tkinter as tk    # either in python 2 or in python 3
except ImportError:
    import Tkinter as tk


def event_handle(event):
    # Replace the window's title with event.type: input key
    root.title("{}: {}".format(str(event.type), event.keysym))


if __name__ == '__main__':
    root = tk.Tk()
    event_sequence = '<KeyPress>'
    root.bind(event_sequence, event_handle)
    root.bind('<KeyRelease>', event_handle)
    root.mainloop()

I read about an experiment here: http://webreflection.blogspot.com/2010/12/100-client-side-image-resizing.html

The theory is that you can use canvas to resize the images on the client before uploading. The prototype example seems to work only in recent browsers, interesting idea though...

However, I’m not sure about using canvas to compress images, but you can certainly resize them.

rsync is fast and easy:

rsync -av --progress sourcefolder /destinationfolder --exclude thefoldertoexclude

You can use --exclude multiples times.

rsync -av --progress sourcefolder /destinationfolder --exclude thefoldertoexclude --exclude anotherfoldertoexclude

Note that the dir thefoldertoexclude after --exclude option is relative to the sourcefolder, i.e., sourcefolder/thefoldertoexclude.

Also you can add -n for dry run to see what will be copied before performing real operation, and if everything is ok, remove -n from command line.

You can use react-native-image-picker and axios (form-data)

uploadS3 = (path) => {
    var data = new FormData();

    data.append('files',
        { uri: path, name: 'image.jpg', type: 'image/jpeg' }
    );

    var config = {
        method: 'post',
        url: YOUR_URL,
        headers: {
            Accept: "application/json",
            "Content-Type": "multipart/form-data",
        },
        data: data,
    };

    axios(config)
        .then((response) => {
            console.log(JSON.stringify(response.data));
        })
        .catch((error) => {
            console.log(error);
        });
}

react-native-image-picker

selectPhotoTapped() {
    const options = {
        quality: 1.0,
        maxWidth: 500,
        maxHeight: 500,
        storageOptions: {
            skipBackup: true,
        },
    };

    ImagePicker.showImagePicker(options, response => {
        //console.log('Response = ', response);

        if (response.didCancel) {
            //console.log('User cancelled photo picker');
        } else if (response.error) {
            //console.log('ImagePicker Error: ', response.error);
        } else if (response.customButton) {
            //console.log('User tapped custom button: ', response.customButton);
        } else {
            let source = { uri: response.uri };
             
            // Call Upload Function
            this.uploadS3(source.uri)

            // You can also display the image using data:
            // let source = { uri: 'data:image/jpeg;base64,' + response.data };
            this.setState({
                avatarSource: source,
            });
            // this.imageUpload(source);
        }
    });
}

For a realistic approach that emulates the most human behavior, you may want to add a referer in your curl options. You may also want to add a follow_location to your curl options. Trust me, whoever said that cURLING Google results is impossible, is a complete dolt and should throw his/her computer against the wall in hopes of never returning to the internetz again. Everything that you can do "IRL" with your own browser can all be emulated using PHP cURL or libCURL in Python. You just need to do more cURLS to get buff. Then you will see what I mean. :)

  $url = "http://www.google.com/search?q=".$strSearch."&hl=en&start=0&sa=N";
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_REFERER, 'http://www.example.com/1');
  curl_setopt($ch, CURLOPT_HEADER, 0);
  curl_setopt($ch, CURLOPT_VERBOSE, 0);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible;)");
  curl_setopt($ch, CURLOPT_URL, urlencode($url));
  $response = curl_exec($ch);
  curl_close($ch);

Today I was checking some resources about the same question and I got an example very interesting.

It is possible to call the same method by GET and POST protocol, but you need to overload the parameters like that:

@using (Ajax.BeginForm("Index", "MyController", ajaxOptions, new { @id = "form-consulta" }))
{
//code
}

The action:

[ActionName("Index")]
public async Task<ActionResult> IndexAsync(MyModel model)
{
//code
}

By default a method without explicit protocol is GET, but in that case there is a declared parameter which allows the method works like a POST.

When GET is executed the parameter does not matter, but when POST is executed the parameter is required on your request.

with thanks to Vlad's answer for inspiration; tested & working on IE11, FF49, Opera40, Chrome53

li > a {
  height: 100px;
  width: 300px;
  display: table-cell;
  text-align: center; /* H align */
  vertical-align: middle;
}

centers in all directions nicely even with text wrapping, line breaks, images, etc.

I got fancy and made a snippet

li > a {_x000D_
  height: 100px;_x000D_
  width: 300px;_x000D_
  display: table-cell;_x000D_
  /*H align*/_x000D_
  text-align: center;_x000D_
  /*V align*/_x000D_
  vertical-align: middle;_x000D_
}_x000D_
a.thin {_x000D_
  width: 40px;_x000D_
}_x000D_
a.break {_x000D_
  /*force text wrap, otherwise `width` is treated as `min-width` when encountering a long word*/_x000D_
  word-break: break-all;_x000D_
}_x000D_
/*more css so you can see this easier*/_x000D_
_x000D_
li {_x000D_
  display: inline-block;_x000D_
}_x000D_
li > a {_x000D_
  padding: 10px;_x000D_
  margin: 30px;_x000D_
  background: aliceblue;_x000D_
}_x000D_
li > a:hover {_x000D_
  padding: 10px;_x000D_
  margin: 30px;_x000D_
  background: aqua;_x000D_
}

<li><a href="">My menu item</a>_x000D_
</li>_x000D_
<li><a href="">My menu <br> break item</a>_x000D_
</li>_x000D_
<li><a href="">My menu item that is really long and unweildly</a>_x000D_
</li>_x000D_
<li><a href="" class="thin">Good<br>Menu<br>Item</a>_x000D_
</li>_x000D_
<li><a href="" class="thin">Fantastically Menu Item</a>_x000D_
</li>_x000D_
<li><a href="" class="thin break">Fantastically Menu Item</a>_x000D_
</li>_x000D_
<br>_x000D_
note: if using "break-all" need to also use "&lt;br>" or suffer the consequences

Bluetooth 4.0 Allows you in a Bluetooth piconet one master can communicate up to 7 active slaves, there can be some other devices up to 248 devices which sleeping.

Also you can use some slaves as bridge to participate with more devices.

I faced the same problem when a liquibase was executed from jenkins. Sporadically this error was thrown to the output and the liquibase change logs were not executed at all.

Solution provided: In the jenkin's maven project, the jdk was updated from jdk8-131 to any newer version (eg java8-162).

 (you have cv::Mat old)
 IplImage copy = old;
 IplImage* new_image = ©

you work with new as an originally declared IplImage*.

Same with something more complex...getting the ec2 instance region from within the instance.

INSTANCE_REGION=$(curl -s 'http://169.254.169.254/latest/dynamic/instance-identity/document' | python -c "import sys, json; print json.load(sys.stdin)['region']")

echo $INSTANCE_REGION

Unordered lists are often created with the intent of using them as a menu, but an li list item is text. Because the list li item is text, the mouse pointer will not be an arrow, but an "I cursor". Users are accustomed to seeing a pointing finger for a mouse pointer when something is clickable. Using an anchor tag a inside of the li tag causes the mouse pointer to change to a pointing finger. The pointing finger is a lot better for using the list as a menu.

<ul id="menu">
   <li><a href="#">Menu Item 1</a></li>
   <li><a href="#">Menu Item 2</a></li>
   <li><a href="#">Menu Item 3</a></li>
   <li><a href="#">Menu Item 4</a></li>
</ul>

If the list is being used for a menu, and doesn't need a link, then a URL doesn't need to be designated. But the problem is that if you leave out the href attribute, text in the <a> tag is seen as text, and therefore the mouse pointer is back to an I-cursor. The I-cursor might make the user think that the menu item is not clickable. Therefore, you still need an href, but you don't need a link to anywhere.

You could use lots of div or p tags for a menu list, but the mouse pointer would be an I-cursor for them also.

You could use lots of buttons stacked on top of each other for a menu list, but the list seems to be preferable. And that's probably why the href="#" that points to nowhere is used in anchor tags inside of list tags.

You can set the pointer style in CSS, so that is another option. The href="#" to nowhere might just be the lazy way to set some styling.

I just found this :

 private static bool TrySetSuppressScriptErrors(WebBrowser webBrowser, bool value)
    {
        FieldInfo field = typeof(WebBrowser).GetField("_axIWebBrowser2", BindingFlags.Instance | BindingFlags.NonPublic);
        if (field != null)
        {
            object axIWebBrowser2 = field.GetValue(webBrowser);
            if (axIWebBrowser2 != null)
            {
                axIWebBrowser2.GetType().InvokeMember("Silent", BindingFlags.SetProperty, null, axIWebBrowser2, new object[] { value });
                return true;
            }
        }

        return false;
    }

usage example to set webBrowser to silent : TrySetSuppressScriptErrors(webBrowser,true)

We can do this using several ways.

Using template comparator parameter

    int main() 
    {
      priority_queue<int, vector<int>, greater<int> > pq;

      pq.push(40);
      pq.push(320);
      pq.push(42);
      pq.push(65);
      pq.push(12);

      cout<<pq.top()<<endl;
      return 0;
    }

Using used defined compartor class

     struct comp
     {
        bool operator () (int lhs, int rhs)
        {
           return lhs > rhs;
        }
     };

    int main()
    {
       priority_queue<int, vector<int>, comp> pq;

       pq.push(40);
       pq.push(320);
       pq.push(42);
       pq.push(65);
       pq.push(12);

       cout<<pq.top()<<endl;

       return 0;
    }

Try this?

$scope.$on('$viewContentLoaded', function() {
    //call it here
});

Make sure Your TableView Delegate are working as well. if not then in your story board or in .xib press and hold Control + right click on tableView drag and Drop to your Current ViewController. swift 2.0

func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    return 60.0;
}

Its defined in RFC 2045 as a special padding character if fewer than 24 bits are available at the end of the encoded data.

@JoinColumn(name="reference_column_name") annotation can be used above that property or field of class that is being referenced from some other entity.

I have tried all the suggested solutions but nothing worked.

I am using macOS Catalina 10.15.3

Go to /usr/local/

Select bin folder > Get Info

Add your user to Sharing & Permissions. Read & Write Permissions.

And go to terminal and run npm install -g @ionic/cli

It has helped me.

git stash 

did the job, It restored the files that I had deleted using rm instead of git rm.

I did first a checkout of the last hash, but I do not believe it is required.

If you change your program slightly:

#include <iostream>
using namespace std;
int main()
{
    int array[2];
    INT NOTHING;
    CHAR FOO[4];
    STRCPY(FOO, "BAR");
    array[0] = 1;
    array[1] = 2;
    array[3] = 3;
    array[4] = 4;
    cout << array[3] << endl;
    cout << array[4] << endl;
    COUT << FOO << ENDL;
    return 0;
}

(Changes in capitals -- put those in lower case if you're going to try this.)

You will see that the variable foo has been trashed. Your code will store values into the nonexistent array[3] and array[4], and be able to properly retrieve them, but the actual storage used will be from foo.

So you can "get away" with exceeding the bounds of the array in your original example, but at the cost of causing damage elsewhere -- damage which may prove to be very hard to diagnose.

As to why there is no automatic bounds checking -- a correctly written program does not need it. Once that has been done, there is no reason to do run-time bounds checking and doing so would just slow down the program. Best to get that all figured out during design and coding.

C++ is based on C, which was designed to be as close to assembly language as possible.

If you have a class that you use in an activity and you want to have access the ressource in that class, I recommend you to define a context as a private variable in class and initial it in constructor:

public class MyClass (){
    private Context context;

    public MyClass(Context context){
       this.context=context;
    }

    public testResource(){
       String s=context.getString(R.string.testString).toString();
    }
}

Making an instant of class in your activity:

MyClass m=new MyClass(this);

One way to solve this problem is by turning the warnings off.

SET ANSI_WARNINGS OFF;
GO

Here is my button with shadow cw_button_shadow.xml inside drawable folder

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="false">
        <layer-list>
            <!-- SHADOW -->
            <item>
                <shape>
                    <solid android:color="@color/red_400"/>
                    <!-- alttan gölge -->
                    <corners android:radius="19dp"/>
                </shape>
            </item>
            <!-- BUTTON alttan gölge
              android:right="5px" to make it round-->
            <item
                android:bottom="5px"
                >
                <shape>
                    <padding android:bottom="5dp"/>
                    <gradient
                        android:startColor="#1c4985"
                        android:endColor="#163969"
                        android:angle="270" />
                    <corners
                        android:radius="19dp"/>
                    <padding
                        android:left="10dp"
                        android:top="10dp"
                        android:right="5dp"
                        android:bottom="10dp"/>
                </shape>
            </item>
        </layer-list>
    </item>

    <item android:state_pressed="true">
        <layer-list>
            <!-- SHADOW -->
            <item>
                <shape>
                    <solid android:color="#102746"/>
                    <corners android:radius="19dp"/>

                </shape>
            </item>
            <!-- BUTTON -->
            <item android:bottom="5px">
                <shape>
                    <padding android:bottom="5dp"/>
                    <gradient
                        android:startColor="#1c4985"
                        android:endColor="#163969"
                        android:angle="270" />
                    <corners
                        android:radius="19dp"/>
                    <padding
                        android:left="10dp"
                        android:top="10dp"
                        android:right="5dp"
                        android:bottom="10dp"/>
                </shape>
            </item>
        </layer-list>
    </item>
</selector>

How to use. in Button xml, you can resize your height and weight

<Button
                android:text="+ add friends"
                android:layout_width="120dp"
                android:layout_height="40dp"
               android:background="@drawable/cw_button_shadow" />

If you are developing on Netbeans, you will not get the Third-Party add-ons. You can download the Skins directly from Samsung here: http://developer.samsung.com/android/tools-sdks

After download, unzip to ...\Android\android-sdk\add-ons[name of device]

Restart the Android SDK Manager, and the new device should be there under Extras.

It would be better to add the download site directly to the SDK...if anyone knows it, please post it.

Scott

You can do the following :-

$(document).ready(function(){
    $("#id").trigger("click");
});

Update alpha 47

As of alpha 47 the below answer (for alpha46 and below) is not longer required. Now the Http module handles automatically the errores returned. So now is as easy as follows

http
  .get('Some Url')
  .map(res => res.json())
  .subscribe(
    (data) => this.data = data,
    (err) => this.error = err); // Reach here if fails

Alpha 46 and below

You can handle the response in the map(...), before the subscribe.

http
  .get('Some Url')
  .map(res => {
    // If request fails, throw an Error that will be caught
    if(res.status < 200 || res.status >= 300) {
      throw new Error('This request has failed ' + res.status);
    } 
    // If everything went fine, return the response
    else {
      return res.json();
    }
  })
  .subscribe(
    (data) => this.data = data, // Reach here if res.status >= 200 && <= 299
    (err) => this.error = err); // Reach here if fails

Here's a plnkr with a simple example.

Note that in the next release this won't be necessary because all status codes below 200 and above 299 will throw an error automatically, so you won't have to check them by yourself. Check this commit for more info.

We can use paste0:

df$combField <- paste0(df$x, df$y)

If you do not want any padding space introduced in the concatenated field. This is more useful if you are planning to use the combined field as a unique id that represents combinations of two fields.

Thanks to modern C# 5/6 :)

public void foo()
{
    Task.Delay(1000).ContinueWith(t=> bar());
}

public void bar()
{
    // do stuff
}

With the stdbool.h defined bool type, problems arise when you need to move code from a newer compiler that supports the bool type to an older compiler. This could happen in an embedded programming environment when you move to a new architecture with a C compiler based on an older version of the spec.

In summation, I would stick with the macros when portability matters. Otherwise, do what others recommend and use the bulit in type.

I noticed that just for catching the exception using botocore.exceptions.ClientError we need to install botocore. botocore takes up 36M of disk space. This is particularly impacting if we use aws lambda functions. In place of that if we just use exception then we can skip using the extra library!

• I am validating for the file extension to be '.csv'
• This will not throw an exception if the bucket does not exist!
• This will not throw an exception if the bucket exists but object does not exist!
• This throws out an exception if the bucket is empty!
• This throws out an exception if the bucket has no permissions!

The code looks like this. Please share your thoughts:

import boto3
import traceback

def download4mS3(s3bucket, s3Path, localPath):
    s3 = boto3.resource('s3')

    print('Looking for the csv data file ending with .csv in bucket: ' + s3bucket + ' path: ' + s3Path)
    if s3Path.endswith('.csv') and s3Path != '':
        try:
            s3.Bucket(s3bucket).download_file(s3Path, localPath)
        except Exception as e:
            print(e)
            print(traceback.format_exc())
            if e.response['Error']['Code'] == "404":
                print("Downloading the file from: [", s3Path, "] failed")
                exit(12)
            else:
                raise
        print("Downloading the file from: [", s3Path, "] succeeded")
    else:
        print("csv file not found in in : [", s3Path, "]")
        exit(12)

In that case, you don't need to use angular.copy()

Explanation :

• = represents a reference whereas angular.copy() creates a new object as a deep copy.

• Using = would mean that changing a property of response.data would change the corresponding property of $scope.example or vice versa.

• Using angular.copy() the two objects would remain seperate and changes would not reflect on each other.

must means: The clause (query) must appear in matching documents. These clauses must match, like logical AND.

should means: At least one of these clauses must match, like logical OR.

Basically they are used like logical operators AND and OR. See this.

Now in a bool query:

must means: Clauses that must match for the document to be included.

should means: If these clauses match, they increase the _score; otherwise, they have no effect. They are simply used to refine the relevance score for each document.

Yes you can use multiple filters inside must.

if you want to change the only icon of radio button then you can only add android:button="@drawable/ic_launcher" to your radio button and for making sensitive on click then you have to use the selector

 <?xml version="1.0" encoding="utf-8"?>
 <selector xmlns:android="http://schemas.android.com/apk/res/android">

<item android:drawable="@drawable/image_what_you_want_on_select_state" android:state_checked="true"/>
<item android:drawable="@drawable/image_what_you_want_on_un_select_state"    android:state_checked="false"/>


 </selector>

and set to your radio android:background="@drawable/name_of_selector"

With the xhr2 library you can globally overwrite XMLHttpRequest from your JS code. This allows you to use external libraries in node, that were intended to be run from browsers / assume they are run in a browser.

global.XMLHttpRequest = require('xhr2');

In my situation, in order to include color.sh from the same directory in init.sh, I had to do something as follows.

. ./color.sh

Not sure why the ./ and not color.sh directly. The content of color.sh is as follows.

RED=`tput setaf 1`
GREEN=`tput setaf 2`
BLUE=`tput setaf 4`
BOLD=`tput bold`
RESET=`tput sgr0`

Making use of File color.sh does not error but, the color do not display. I have tested this in Ubuntu 18.04 and the Bash version is:

GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu)

I was trying do the same of making a particular file my default page, instead of directory structure. So in IIS server I had to go to Default Document, add the page that I want to make as default and at the same time, go to the Web.config file and update the defaultDocument header with "enabled=true". This worked for me. Hopefully it helps.

(untested) something like this may do the job

WITH
base AS
(
    select *                   -- get the table
    from sometable
    order by name              -- in the desired order
),
twenty AS
(
    select *                   -- get the first 30 rows
    from base
    where rownum < 30
    order by name              -- in the desired order
)
select *                       -- then get rows 21 .. 30
from twenty
where rownum > 20
order by name                  -- in the desired order

There is also the analytic function rank, that you can use to order by.

Try this:

var charArray = "this is a test".ToCharArray().Select(c=>c.ToString());

I want to add that when using Windows you can use require './1.rb' if the script is run local or from a mapped network drive but when run from an UNC \\servername\sharename\folder path you need to use require_relative './1.rb'.

I don't mingle in the discussion which to use for other reasons.

The only way to access classes in the default package is from another class in the default package. In that case, don't bother to import it, just refer to it directly.

React hooks are a new way (still being developed) to access the core features of react such as state without having to use classes, in your example if you want to increment a counter directly in the handler function without specifying it directly in the onClick prop, you could do something like:

...
const [count, setCounter] = useState(0);
const [moreStuff, setMoreStuff] = useState(...);
...

const setCount = () => {
    setCounter(count + 1);
    setMoreStuff(...);
    ...
};

and onClick:

<button onClick={setCount}>
    Click me
</button>

Let's quickly explain what is going on in this line:

const [count, setCounter] = useState(0);

useState(0) returns a tuple where the first parameter count is the current state of the counter and setCounter is the method that will allow us to update the counter's state. We can use the setCounter method to update the state of count anywhere - In this case we are using it inside of the setCount function where we can do more things; the idea with hooks is that we are able to keep our code more functional and avoid class based components if not desired/needed.

I wrote a complete article about hooks with multiple examples (including counters) such as this codepen, I made use of useState, useEffect, useContext, and custom hooks. I could get into more details about how hooks work on this answer but the documentation does a very good job explaining the state hook and other hooks in detail, hope it helps.

update: Hooks are not longer a proposal, since version 16.8 they're now available to be used, there is a section in React's site that answers some of the FAQ.

This is another way:

1.Create a BaseFragment like this:

public abstract class BaseFragment extends Fragment implements OnClickListener

2.Use

public class FragmentA extends BaseFragment 

instead of

public class FragmentA extends Fragment

3.In your activity:

public class MainActivity extends ActionBarActivity implements OnClickListener

and

BaseFragment fragment = new FragmentA;

public void onClick(View v){
    fragment.onClick(v);
}

Hope it helps.

The time function probably returns the same value during each iteration of the loop.

Try initializing the random seed before the loop.

As shown in the latest edit, the password is valid until 1970, which means it's currently invalid. This explains the error message which is the same as if the password was incorrect.

Reset the validity with:

ALTER USER postgres VALID UNTIL 'infinity';

In a recent question, another user had the same problem with user accounts and PG-9.2:

PostgreSQL - Password authentication fail after adding group roles

So apparently there is a way to unintentionally set a bogus password validity to the Unix epoch (1st Jan, 1970, the minimum possible value for the abstime type). Possibly, there's a bug in PG itself or in some client tool that would create this situation.

EDIT: it turns out to be a pgadmin bug. See https://dba.stackexchange.com/questions/36137/

In Python 3, ConfigParser has been renamed to configparser for PEP 8 compliance. It looks like the package you are installing does not support Python 3.

I use year 2000 instead of Epoch Time in my calculus. Working with smaller numbers is easy to store and transport and is JSON friendly.

Year 2000 was at second 946684800 of epoch time.

Year 2000 was at second 63082281600 from 1-st of Jan 0001.

DateTime.UtcNow Ticks starts from 1-st of Jan 0001

Seconds from year 2000:

DateTime.UtcNow.Ticks/10000000-63082281600

Seconds from Unix Time:

DateTime.UtcNow.Ticks/10000000-946684800

For example year 2020 is:

var year2020 = (new DateTime()).AddYears(2019).Ticks; // Because DateTime starts already at year 1

637134336000000000 Ticks since 1-st of Jan 0001

63713433600 Seconds since 1-st of Jan 0001

1577836800 Seconds since Epoch Time

631152000 Seconds since year 2000

References:

Epoch Time converter: https://www.epochconverter.com

Year 1 converter: https://www.epochconverter.com/seconds-days-since-y0

The latest version of Springsource STS (3.6) supports Tomcat 8. It is based on eclipse Luna 4.4 and supports Java 8. Have at it!

class PersonDB
{
  string[] list = { "John", "Sam", "Dave" };
  public void Process(ProcessPersonDelegate f)
  {
    foreach(string s in list) f(s);
  }
}

The second class is Client, which will use the storage class. It has a Main method that creates an instance of PersonDB, and it calls that object’s Process method with a method that is defined in the Client class.

class Client
{
  static void Main()
  {
    PersonDB p = new PersonDB();
    p.Process(PrintName);
  }
  static void PrintName(string name)
  {
    System.Console.WriteLine(name);
  }
}

I found this gem from Flysystem

spl_autoload_register(function($class) {
    $prefix = 'League\\Flysystem\\';

    if ( ! substr($class, 0, 17) === $prefix) {
        return;
    }

    $class = substr($class, strlen($prefix));
    $location = __DIR__ . 'path/to/flysystem/src/' . str_replace('\\', '/', $class) . '.php';

    if (is_file($location)) {
        require_once($location);
    }
});

import argparse
parser = argparse.ArgumentParser()
parser.add_argument('--example', nargs='?', const=1, type=int)
args = parser.parse_args()
print(args)

% test.py 
Namespace(example=None)
% test.py --example
Namespace(example=1)
% test.py --example 2
Namespace(example=2)

• nargs='?' means 0-or-1 arguments
• const=1 sets the default when there are 0 arguments
• type=int converts the argument to int

If you want test.py to set example to 1 even if no --example is specified, then include default=1. That is, with

parser.add_argument('--example', nargs='?', const=1, type=int, default=1)

then

% test.py 
Namespace(example=1)

fileExists() is a method of FileSystemObject, not a global scope function.

You also have an issue with the delete, DeleteFile() is also a method of FileSystemObject.

Furthermore, it seems you are moving the file and then attempting to deal with the overwrite issue, which is out of order. First you must detect the name collision, so you can choose the rename the file or delete the collision first. I am assuming for some reason you want to keep deleting the new files until you get to the last one, which seemed implied in your question.

So you could use the block:

if NOT fso.FileExists(newname) Then  

    file.move fso.buildpath(OUT_PATH, newname)           

else

    fso.DeleteFile newname
    file.move fso.buildpath(OUT_PATH, newname)  

end if 

Also be careful that your string comparison with the = sign is case sensitive. Use strCmp with vbText compare option for case insensitive string comparison.

Are you using virtualenv? If yes, deactivate the virtualenv. If you are not using, it is already installed widely (system level). Try to upgrade package.

pip install flake8 --upgrade

There is no str accessor for datetimes and you can't do dates.astype(str) either, you can call apply and use datetime.strftime:

In [73]:

dates = pd.to_datetime(pd.Series(['20010101', '20010331']), format = '%Y%m%d')
dates.apply(lambda x: x.strftime('%Y-%m-%d'))
Out[73]:
0    2001-01-01
1    2001-03-31
dtype: object

You can change the format of your date strings using whatever you like: strftime() and strptime() Behavior.

Update

As of version 0.17.0 you can do this using dt.strftime

dates.dt.strftime('%Y-%m-%d')

will now work

The following should work, but you may need to change the format:

echo date('l F jS, Y (m-d-Y)', strtotime('+3 months', strtotime($DateToAdjust)));

$(':focus')[0] will give you the actual element.

$(':focus') will give you an array of elements, usually only one element is focused at a time so this is only better if you somehow have multiple elements focused.

I've been facing the same issue with java 8 (ubuntu 16.04), trying to compile using mvn command line.

I verified my $JAVA_HOME, java -version and mvn -version. Everything seems to be okay pointing to /usr/lib/jvm/java-8-openjdk-amd64.

It appears that java-8-openjdk-amd64 is not completly installed by default and only contains the JRE (despite its name "jdk").

Re-installing the JDK did the trick.

sudo apt-get install openjdk-8-jdk

Then some new files and new folders are added to /usr/lib/jvm/java-8-openjdk-amd64 and mvn is able to compile again.

VBA functions treat the function name itself as a sort of variable. So instead of using a "return" statement, you would just say:

test = 1

Notice, though, that this does not break out of the function. Any code after this statement will also be executed. Thus, you can have many assignment statements that assign different values to test, and whatever the value is when you reach the end of the function will be the value returned.

In the context of EF, marking a property as virtual allows EF to use lazy loading to load it. For lazy loading to work EF has to create a proxy object that overrides your virtual properties with an implementation that loads the referenced entity when it is first accessed. If you don't mark the property as virtual then lazy loading won't work with it.

As of v1.8.8 there is also the option USE_MDFILE_AS_MAINPAGE. So make sure to add your index file, e.g. README.md, to INPUT and set it as this option's value:

INPUT += README.md
USE_MDFILE_AS_MAINPAGE = README.md

For multiple lines

xposition = [0.3, 0.4, 0.45]
for xc in xposition:
    plt.axvline(x=xc, color='k', linestyle='--')

If you want to use it in JavaScript then you can use

str.replace("SP","\\SP");

But in Java

str.replaceAll("SP","\\SP");

will work perfectly.

SP: special character

Otherwise you can use Apache's EscapeUtil. It will solve your problem.

I stole the logging code from virtualenv for a project of mine. Look in main() of virtualenv.py to see how it's initialized. The code is sprinkled with logger.notify(), logger.info(), logger.warn(), and the like. Which methods actually emit output is determined by whether virtualenv was invoked with -v, -vv, -vvv, or -q.

My site configuration file is example.conf in sites-available folder So you can create a symbolic link as

ln -s /etc/nginx/sites-available/example.conf /etc/nginx/sites-enabled/

Are you using Bootstrap 3? My version of the css has -15px, not -13px. In any case, I've simply done what you've down, and overwritten the style. I believe it's because the .container class has a 15px padding on the left and right, and this negative margin on the rows will pull that content back out to the edge of the container.

I was gone through same problem & I resolved it by following steps.

1. Uninstall earlier version of wamp server, which you are trying to install.
2. Install which ever file supports to your configuration (64, 86) from en this link
3. Restart your computer.
4. Install wampserver now.

A handle is a unique identifier for an object managed by Windows. It's like a pointer, but not a pointer in the sence that it's not an address that could be dereferenced by user code to gain access to some data. Instead a handle is to be passed to a set of functions that can perform actions on the object the handle identifies.

disable the button on click, enable it after the operation completes

$(document).ready(function () {
    $("#btn").on("click", function() {
        $(this).attr("disabled", "disabled");
        doWork(); //this method contains your logic
    });
});

function doWork() {
    alert("doing work");
    //actually this function will do something and when processing is done the button is enabled by removing the 'disabled' attribute
    //I use setTimeout so you can see the button can only be clicked once, and can't be clicked again while work is being done
    setTimeout('$("#btn").removeAttr("disabled")', 1500);
}

working example

A lot of these answers won't actually work, having tried them myself. Give this a go:

string filepath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
DirectoryInfo d = new DirectoryInfo(filepath);

foreach (var file in d.GetFiles("*.txt"))
{
      Directory.Move(file.FullName, filepath + "\\TextFiles\\" + file.Name);
}

It will move all .txt files on the desktop to the folder TextFiles.

I did it! Using <intent-filter>. Put the following into your manifest file:

<intent-filter>
  <action android:name="android.intent.action.VIEW" />
  <category android:name="android.intent.category.DEFAULT" />
  <category android:name="android.intent.category.BROWSABLE" />
  <data android:host="www.youtube.com" android:scheme="http" />
</intent-filter>

This works perfectly!

if you want to get the whole period:

    from sqlalchemy import and_, func

    query = DBSession.query(User).filter(and_(func.date(User.birthday) >= '1985-01-17'),\
                                              func.date(User.birthday) <= '1988-01-17'))

That means range: 1985-01-17 00:00 - 1988-01-17 23:59

You can apply the style via javascript. This is the Js code below that applies the filter to the image with the ID theImage.

function invert(){
document.getElementById("theImage").style.filter="invert(100%)";
}

And this is the

<img id="theImage" class="img-responsive" src="http://i.imgur.com/1H91A5Y.png"></img>

Now all you need to do is call invert() We do this when the image is clicked.

function invert(){_x000D_
document.getElementById("theImage").style.filter="invert(100%)";_x000D_
}

<h4> Click image to invert </h4>_x000D_
_x000D_
<img id="theImage" class="img-responsive" src="http://i.imgur.com/1H91A5Y.png" onClick="invert()" ></img>

We use this on our website

Your code should work. Make sure static/jquery-1.9.1.min.js exists. Also, you can try reverting to static/jquery.min.js. If that fixes the problem then you've pinpointed the problem.

To create an option that needs no value, set the action ^[docs] of it to 'store_const', 'store_true' or 'store_false'.

Example:

parser.add_argument('-s', '--simulate', action='store_true')

This is a known bug under MinGW. Relevant Bugzilla. In the comments section you can get a patch to make it work with MinGW.

This issue has been fixed in MinGW-w64 distros higher than GCC 4.8.0 provided by the MinGW-w64 project. Despite the name, the project provides toolchains for 32-bit along with 64-bit. The Nuwen MinGW distro also solves this issue.

First, keep in mind that, in its precise definition, a module is an object in the memory of a Python interpreter, often created by reading one or more files from disk. While we may informally call a disk file such as a/b/c.py a "module," it doesn't actually become one until it's combined with information from several other sources (such as sys.path) to create the module object.

(Note, for example, that two modules with different names can be loaded from the same file, depending on sys.path and other settings. This is exactly what happens with python -m my.module followed by an import my.module in the interpreter; there will be two module objects, __main__ and my.module, both created from the same file on disk, my/module.py.)

A package is a module that may have submodules (including subpackages). Not all modules can do this. As an example, create a small module hierarchy:

$ mkdir -p a/b
$ touch a/b/c.py

Ensure that there are no other files under a. Start a Python 3.4 or later interpreter (e.g., with python3 -i) and examine the results of the following statements:

import a
a                ? <module 'a' (namespace)>
a.b              ? AttributeError: module 'a' has no attribute 'b'
import a.b.c
a.b              ? <module 'a.b' (namespace)>
a.b.c            ? <module 'a.b.c' from '/home/cjs/a/b/c.py'>

Modules a and a.b are packages (in fact, a certain kind of package called a "namespace package," though we wont' worry about that here). However, module a.b.c is not a package. We can demonstrate this by adding another file, a/b.py to the directory structure above and starting a fresh interpreter:

import a.b.c
? ImportError: No module named 'a.b.c'; 'a.b' is not a package
import a.b
a                ? <module 'a' (namespace)>
a.__path__       ? _NamespacePath(['/.../a'])
a.b              ? <module 'a.b' from '/home/cjs/tmp/a/b.py'>
a.b.__path__     ? AttributeError: 'module' object has no attribute '__path__'

Python ensures that all parent modules are loaded before a child module is loaded. Above it finds that a/ is a directory, and so creates a namespace package a, and that a/b.py is a Python source file which it loads and uses to create a (non-package) module a.b. At this point you cannot have a module a.b.c because a.b is not a package, and thus cannot have submodules.

You can also see here that the package module a has a __path__ attribute (packages must have this) but the non-package module a.b does not.

For me it turned out that I had a @JsonManagedReferece in one entity without a @JsonBackReference in the other referenced entity. This caused the marshaller to throw an error.

Gradle 4.9+

gradle run --args='arg1 arg2'

This assumes your build.gradle is configured with the Application plugin. Your build.gradle should look similar to this:

plugins {
  // Implicitly applies Java plugin
  id: 'application'
}

application {
  // URI of your main class/application's entry point (required)
  mainClassName = 'org.gradle.sample.Main'
}

Pre-Gradle 4.9

Include the following in your build.gradle:

run {
    if (project.hasProperty("appArgs")) {
        args Eval.me(appArgs)
    }
}

Then to run: gradle run -PappArgs="['arg1', 'args2']"

200

Ugh... (309, 400, 403, 409, 415, 422)... a lot of answers trying to guess, argue and standardize what is the best return code for a successful HTTP request but a failed REST call.

It is wrong to mix HTTP status codes and REST status codes.

However, I saw many implementations mixing them, and many developers may not agree with me.

HTTP return codes are related to the HTTP Request itself. A REST call is done using a Hypertext Transfer Protocol request and it works at a lower level than invoked REST method itself. REST is a concept/approach, and its output is a business/logical result, while HTTP result code is a transport one.

For example, returning "404 Not found" when you call /users/ is confuse, because it may mean:

• URI is wrong (HTTP)
• No users are found (REST)

"403 Forbidden/Access Denied" may mean:

• Special permission needed. Browsers can handle it by asking the user/password. (HTTP)
• Wrong access permissions configured on the server. (HTTP)
• You need to be authenticated (REST)

And the list may continue with '500 Server error" (an Apache/Nginx HTTP thrown error or a business constraint error in REST) or other HTTP errors etc...

From the code, it's hard to understand what was the failure reason, a HTTP (transport) failure or a REST (logical) failure.

If the HTTP request physically was performed successfully it should always return 200 code, regardless is the record(s) found or not. Because URI resource is found and was handled by the HTTP server. Yes, it may return an empty set. Is it possible to receive an empty web-page with 200 as HTTP result, right?

Instead of this you may return 200 HTTP code with some options:

• "error" object in JSON result if something goes wrong
• Empty JSON array/object if no record found
• A bool result/success flag in combination with previous options for a better handling.

Also, some internet providers may intercept your requests and return you a 404 HTTP code. This does not means that your data are not found, but it's something wrong at transport level.

From Wiki:

In July 2004, the UK telecom provider BT Group deployed the Cleanfeed content blocking system, which returns a 404 error to any request for content identified as potentially illegal by the Internet Watch Foundation. Other ISPs return a HTTP 403 "forbidden" error in the same circumstances. The practice of employing fake 404 errors as a means to conceal censorship has also been reported in Thailand and Tunisia. In Tunisia, where censorship was severe before the 2011 revolution, people became aware of the nature of the fake 404 errors and created an imaginary character named "Ammar 404" who represents "the invisible censor".

Why not simply answer with something like this?

{
  "result": false,
  "error": {"code": 102, "message": "Validation failed: Wrong NAME."}
}

Google always returns 200 as status code in their Geocoding API, even if the request logically fails: https://developers.google.com/maps/documentation/geocoding/intro#StatusCodes

Facebook always return 200 for successful HTTP requests, even if REST request fails: https://developers.facebook.com/docs/graph-api/using-graph-api/error-handling

It's simple, HTTP status codes are for HTTP requests. REST API is Your, define Your status codes.

In lampp as i recognize it does not identify mysql commands. try with

sudo /opt/lampp/bin/mysql

it will open the mysql terminal where you can communicate with databases..

Strings aren't value types since they can be huge, and need to be stored on the heap. Value types are (in all implementations of the CLR as of yet) stored on the stack. Stack allocating strings would break all sorts of things: the stack is only 1MB for 32-bit and 4MB for 64-bit, you'd have to box each string, incurring a copy penalty, you couldn't intern strings, and memory usage would balloon, etc...

(Edit: Added clarification about value type storage being an implementation detail, which leads to this situation where we have a type with value sematics not inheriting from System.ValueType. Thanks Ben.)

Try this:

<?php 
/*
Template Name: [contact us]

*/
get_header();
echo do_shortcode('[CONTACT-US-FORM]'); 
?>

You might be able to use the CSS 2 @page rule which allows you to set the 'size' property to landscape.

Update v8

Below answers work but exposes your application to XSS security risks!. Instead of using this.sanitizer.bypassSecurityTrustResourceUrl(url), it is recommended to use this.sanitizer.sanitize(SecurityContext.URL, url)

Update

For RC.6^ version use DomSanitizer

Plunker

And a good option is using pure pipe for that:

import { Pipe, PipeTransform } from '@angular/core';
import { DomSanitizer} from '@angular/platform-browser';

@Pipe({ name: 'safe' })
export class SafePipe implements PipeTransform {
  constructor(private sanitizer: DomSanitizer) {}
  transform(url) {
    return this.sanitizer.bypassSecurityTrustResourceUrl(url);
  }
} 

remember to add your new SafePipe to the declarations array of the AppModule. (as seen on documentation)

@NgModule({
   declarations : [
     ...
     SafePipe
   ],
})

html

<iframe width="100%" height="300" [src]="url | safe"></iframe>

Plunker

If you use embed tag this might be interesting for you:

• how with angular2 rc.6 disable sanitize on embed html tag which display pdf

Old version RC.5

You can leverage DomSanitizationService like this:

export class YourComponent {
  url: SafeResourceUrl;
  constructor(sanitizer: DomSanitizationService) {
    this.url = sanitizer.bypassSecurityTrustResourceUrl('your url');
  }
}

And then bind to url in your template:

<iframe width="100%" height="300" [src]="url"></iframe>

Don't forget to add the following imports:

import { SafeResourceUrl, DomSanitizationService } from '@angular/platform-browser';

Plunker sample

While, @jamylak's approach is the better one, here is an alternative approach

>>> N=[2,3,5]
>>> P = 5
>>> type(P) in (tuple, list)
False
>>> type(N) in (tuple, list)
True

Here is a quick and dirty version that uses the local systems settings to work out the time difference. NOTE: This will not work if you need to convert to a timezone that your current system is not running in. I have tested this with UK settings under BST timezone

from datetime import datetime
def ConvertP4DateTimeToLocal(timestampValue):
   assert isinstance(timestampValue, int)

   # get the UTC time from the timestamp integer value.
   d = datetime.utcfromtimestamp( timestampValue )

   # calculate time difference from utcnow and the local system time reported by OS
   offset = datetime.now() - datetime.utcnow()

   # Add offset to UTC time and return it
   return d + offset

If you are using wampserver 3 (recommended, works with no configuration usually)

• click wampserver icon > apache > service administration > install service
• click wampserver icon > mysql > service administration > install service
• click wampserver icon > mariadb > service administration > install service
• click wampserver icon > restart all services

if this doesnt fix it, try:

• right click wampserver icon > Tools > Check httpd.conf syntax (then fix the issue it identifies and restart all services, likely it's bad syntax in your virtual hosts file)

• right click wampserver icon > Tools > test port 80 (you likely have skype turned on or something else, turn it off and restart all services)

If this doesnt fix it, maybe have a windows conflict:

• Upgraded to Windows 10 and now WAMP won't work)

If this doesnt fix it:

• right click wampserver icon > tools
  • check all of those for clues

Use git clone with the --depth option set to 1 to create a shallow clone with a history truncated to the latest commit.

For example:

git clone --depth 1 https://github.com/user/repo.git

To also initialize and update any nested submodules, also pass --recurse-submodules and to clone them shallowly, also pass --shallow-submodules.

For example:

git clone --depth 1 --recurse-submodules --shallow-submodules https://github.com/user/repo.git

This can be achieved using awk
Below Line will display unique Values

awk file_name | uniq

You can output these unique values to a new file

awk file_name | uniq > uniq_file_name

new file uniq_file_name will contain only Unique values, no duplicates

display: is not transitionable. You'll probably need to use jQuery to do what you want to do.

Yes, if your Column annotation has the runtime retention

@Retention(RetentionPolicy.RUNTIME)
@interface Column {
    ....
}

you can do something like this

for (Field f: MyClass.class.getFields()) {
   Column column = f.getAnnotation(Column.class);
   if (column != null)
       System.out.println(column.columnName());
}

UPDATE : To get private fields use

Myclass.class.getDeclaredFields()

Use mvn dependency:purge-local-repository -DactTransitively=false -Dskip=true if you have maven plugins as one of the modules. Otherwise Maven will try to recompile them, thus downloading the dependencies again.

Code from the above answer by Dutchie432

.FixedHeightContainer {
    float:right;
    height: 250px;
    width:250px; 
    padding:3px; 
    background:#f00;
}

.Content {
    height:224px;
    overflow:auto;
    background:#fff;
}

static is a heavily overloaded word in C and C++. static variables in the context of a function are variables that hold their values between calls. They exist for the duration of the program.

local variables persist only for the lifetime of a function or whatever their enclosing scope is. For example:

void foo()
{
    int i, j, k;
    //initialize, do stuff
} //i, j, k fall out of scope, no longer exist

Sometimes this scoping is used on purpose with { } blocks:

{ 
   int i, j, k;
   //...
} //i, j, k now out of scope

global variables exist for the duration of the program.

auto is now different in C and C++. auto in C was a (superfluous) way of specifying a local variable. In C++11, auto is now used to automatically derive the type of a value/expression.

It means that servlet jar is missing .

check the libraries for your project. Configure your buildpath download **

servlet-api.jar

** and import it in your project.

RMI or Remote Method Invokation is very similar to RPC or Remote Procedure call in that the client both send proxy objects (or stubs) to the server however the subtle difference is that client side RPC invokes FUNCTIONS through the proxy function and RMI invokes METHODS through the proxy function. RMI is considered slightly superior as it is an object-oriented version of RPC.

From here.

For more information and examples, have a look here.

Here is a method that is way way faster :

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

unsigned char *     bin_to_strhex(const unsigned char *bin, unsigned int binsz,
                                  unsigned char **result)
{
  unsigned char     hex_str[]= "0123456789abcdef";
  unsigned int      i;

  if (!(*result = (unsigned char *)malloc(binsz * 2 + 1)))
    return (NULL);

  (*result)[binsz * 2] = 0;

  if (!binsz)
    return (NULL);

  for (i = 0; i < binsz; i++)
    {
      (*result)[i * 2 + 0] = hex_str[(bin[i] >> 4) & 0x0F];
      (*result)[i * 2 + 1] = hex_str[(bin[i]     ) & 0x0F];
    }
  return (*result);
}

int                 main()
{
  //the calling
  unsigned char     buf[] = {0,1,10,11};
  unsigned char *   result;

  printf("result : %s\n", bin_to_strhex((unsigned char *)buf, sizeof(buf), &result));
  free(result);

  return 0
}

You can try to clone using the HTTPS protocol. Terminal command:

git clone https://github.com/RestKit/RestKit.git

Definition:

public static string GetLast(string source, int last)
{
     return last >= source.Length ? source : source.Substring(source.Length - last);
}

Usage:

GetLast("string of", 2);

Result:

of

I had the same problem but I solved it differently. I don't know if it's a good way of doing it, but it works great for what I need.

I used @Inject on the constructor of the child component, like this:

import { Component, OnInit, Inject } from '@angular/core';
import { ParentComponent } from '../views/parent/parent.component';

export class ChildComponent{
    constructor(@Inject(ParentComponent) private parent: ParentComponent){

    }

    someMethod(){
        this.parent.aPublicProperty = 2;
    }
}

This worked for me, you only need to declare the method or property you want to call as public.

In my case, the AppComponent handles the routing, and I'm using badges in the menu items to alert the user that new unread messages are available. So everytime a user reads a message, I want that counter to refresh, so I call the refresh method so that the number at the menu nav gets updated with the new value. This is probably not the best way but I like it for its simplicity.

The data structure of shape (n,) is called a rank 1 array. It doesn't behave consistently as a row vector or a column vector which makes some of its operations and effects non intuitive. If you take the transpose of this (n,) data structure, it'll look exactly same and the dot product will give you a number and not a matrix. The vectors of shape (n,1) or (1,n) row or column vectors are much more intuitive and consistent.

the instructions for Vs2012

To Install FreeGLUT

1. Download "freeglut 2.8.1 MSVC Package" from http://www.transmissionzero.co.uk/software/freeglut-devel/

2. Extract the compressed file freeglut-MSVC.zip to a folder freeglut

3. Inside freeglut folder:

On 32bit versions of windows

copy all files in include/GL folder to C:\Program Files\Windows Kits\8.0\Include\um\gl

copy all files in lib folder to C:\Program Files\Windows Kits\8.0\Lib\win8\um\ (note: Lib\freeglut.lib in a folder goes into x86)

copy freeglut.dll to C:\windows\system32

On 64bit versions of windows:(not 100% sure but try)

copy all files in include/GL folder to C:\Program Files(x86)\Windows Kits\8.0\Include\um\gl

copy all files in lib folder to C:\Program Files(x86)\Windows Kits\8.0\Lib\win8\um\ (note: Lib\freeglut.lib in a folder goes into x86)

copy freeglut.dll to C:\windows\SysWOW64

You have to use absolute position along with your desired height. in your CSS, do the following:

#id-of-iFrame {
    position: absolute;
    height: 100%;
}

From TypeScript version 1.8 you can use simple import statements just like in ES6:

import { ZipCodeValidator } from "./ZipCodeValidator";

let myValidator = new ZipCodeValidator();

https://www.typescriptlang.org/docs/handbook/modules.html

Old answer: From TypeScript version 1.5 you can use tsconfig.json: http://www.typescriptlang.org/docs/handbook/tsconfig-json.html

It completely eliminates the need of the comment style referencing.

Older answer:

You need to reference the file on the top of the current file.

You can do this like this:

/// <reference path="../typings/jquery.d.ts"/>
/// <reference path="components/someclass.ts"/>

class Foo { }

etc.

These paths are relative to the current file.

Your example:

/// <reference path="moo.ts"/>

class bar extends moo.foo
{
}

wrap the cards inside

<div class="card-group"></div>

or

<div class="card-deck"></div>

require section This section contains the packages/dependencies which are better candidates to be installed/required in the production environment.

require-dev section: This section contains the packages/dependencies which can be used by the developer to test her code (or to experiment on her local machine and she doesn't want these packages to be installed on the production environment).

For pyftpdlib users. I found this on the pyftpdlib website. This creates anonymous ftp with write access to your filesystem so please use with due care. More features are available under the hood for better security so just go look:

sudo pip3 install pyftpdlib

python3 -m pyftpdlib -w  

## updated for python3 Feb14:2020

Might be helpful for those that tried using the deprecated method above.

sudo python -m pyftpdlib.ftpserver

I also came across this problem. In my case, I didn't know the type of the IEnumerable. So the answers given above wont work. However, I solved it like this:

public static DataTable CreateDataTable(IEnumerable source)
    {
        var table = new DataTable();
        int index = 0;
        var properties = new List<PropertyInfo>();
        foreach (var obj in source)
        {
            if (index == 0)
            {
                foreach (var property in obj.GetType().GetProperties())
                {
                    if (Nullable.GetUnderlyingType(property.PropertyType) != null)
                    {
                        continue;
                    }
                    properties.Add(property);
                    table.Columns.Add(new DataColumn(property.Name, property.PropertyType));
                }
            }
            object[] values = new object[properties.Count];
            for (int i = 0; i < properties.Count; i++)
            {
                values[i] = properties[i].GetValue(obj);
            }
            table.Rows.Add(values);
            index++;
        }
        return table;
    }

Keep in mind that using this method, requires at least one item in the IEnumerable. If that's not the case, the DataTable wont create any columns.

Is this what you are looking for?

https://maps.googleapis.com/maps/api/place/search/xml?location=49.260691,-123.137784&radius=500&sensor=false&key=*PlacesAPIKey*&types=restaurant

types is optional

In case you don't need to convert zero values, I find the methods to_i and to_f to be extremely useful since they will convert the string to either a zero value (if not convertible or zero) or the actual Integer or Float value.

"0014.56".to_i # => 14
"0014.56".to_f # => 14.56
"0.0".to_f # => 0.0
"not_an_int".to_f # 0
"not_a_float".to_f # 0.0

"0014.56".to_f ? "I'm a float" : "I'm not a float or the 0.0 float" 
# => I'm a float
"not a float" ? "I'm a float" : "I'm not a float or the 0.0 float" 
# => "I'm not a float or the 0.0 float"

EDIT2 : be careful, the 0 integer value is not falsey it's truthy (!!0 #=> true) (thanks @prettycoder)

EDIT

Ah just found out about the dark cases... seems to only happen if the number is in first position though

"12blah".to_i => 12

That is really important for example when you are writing a network analyzer. packet headers are defined by the protocol specification, not by the way a particular platform's C compiler works.

pubspec.yaml:

dependencies:
  intl:

main.dart:

import 'package:intl/intl.dart'; // for date format
import 'package:intl/date_symbol_data_local.dart'; // for other locales

void main() {
  var now = DateTime.now();
  print(DateFormat().format(now)); // This will return date using the default locale
  print(DateFormat('yyyy-MM-dd hh:mm:ss').format(now));
  print(DateFormat.yMMMMd().format(now)); // print long date 
  print(DateFormat.yMd().format(now)); // print short date 
  print(DateFormat.jms().format(now)); // print time 

  initializeDateFormatting('es'); // This will initialize Spanish locale
  print(DateFormat.yMMMMd('es').format(now)); // print long date in Spanish format
  print(DateFormat.yMd('es').format(now)); // print short date in Spanish format
  print(DateFormat.jms('es').format(now)); // print time in Spanish format
}

Result:

May 31, 2020 5:41:42 PM
2020-05-31 05:41:42
May 31, 2020
5/31/2020
5:41:42 PM
31 de mayo de 2020
31/5/2020
17:41:42

At least in python3, this works:

>>> datetime.strftime(datetime.utcnow(), "%s")
'1587503279'

You don't need to use bi-directional association instead of your code, you have just to add CascaType.Remove as a property to ManyToOne annotation, then use @OnDelete(action = OnDeleteAction.CASCADE), it's works fine for me.

I spent some time looking for the best answer, and I think I have it.

This sql will give you the number of days between two dates as integer:

SELECT
    (EXTRACT(epoch from age('2017-6-15', now())) / 86400)::int

..which, when run today (2017-3-28), provides me with:

?column?
------------
77

The misconception about the accepted answer:

select age('2010-04-01', '2012-03-05'),
   date_part('year',age('2010-04-01', '2012-03-05')),
   date_part('month',age('2010-04-01', '2012-03-05')),
   date_part('day',age('2010-04-01', '2012-03-05'));

..is that you will get the literal difference between the parts of the date strings, not the amount of time between the two dates.

I.E:

Age(interval)=-1 years -11 mons -4 days;

Years(double precision)=-1;

Months(double precision)=-11;

Days(double precision)=-4;

I suggest that you take a look at the Java docs for these methods. It appears that you are using them incorrectly. These methods will not tell you if the string is a valid boolean value, but instead they return a boolean, set to true or false, based on the string that you pass in, "true" or "false".

http://www.j2ee.me/javase/6/docs/api/java/lang/Boolean.html

To complement @gertvdijk's answer - I'm adding few screenshots in case it helps someone quick.

On my git bash shell

git branch

command without any parameters shows all my local branches. The current branch which is currently checked out is shown in different color (green) along with an asterisk (*) prefix which is really intuitive.

When you try to see all branches including the remote branches using

git branch -a

command then remote branches which aren't checked out yet are shown in red color:

Using explicit parameters, it would be:

$msbuild = 'C:\WINDOWS\Microsoft.NET\Framework\v3.5\MSBuild.exe'
start-Process -FilePath $msbuild -ArgumentList '/v:q','/nologo'

EDIT: quotes.

That is interesting subject. You can play around with two lifecycle hooks to figure out how it works: ngOnChanges and ngOnInit.

Basically when you set default value to Input that's mean it will be used only in case there will be no value coming on that component. And the interesting part it will be changed before component will be initialized.

Let's say we have such components with two lifecycle hooks and one property coming from input.

@Component({
  selector: 'cmp',
})
export class Login implements OnChanges, OnInit {
  @Input() property: string = 'default';

  ngOnChanges(changes) {
    console.log('Changed', changes.property.currentValue, changes.property.previousValue);
  }

  ngOnInit() {
    console.log('Init', this.property);
  }

}

Situation 1

Component included in html without defined property value

As result we will see in console: Init default

That's mean onChange was not triggered. Init was triggered and property value is default as expected.

Situation 2

Component included in html with setted property <cmp [property]="'new value'"></cmp>

As result we will see in console:

Changed new value Object {}

Init new value

And this one is interesting. Firstly was triggered onChange hook, which setted property to new value, and previous value was empty object! And only after that onInit hook was triggered with new value of property.

Modulus division is pretty simple. It uses the remainder instead of the quotient.

    1.0833... <-- Quotient
   __
12|13
   12
    1 <-- Remainder
    1.00 <-- Remainder can be used to find decimal values
     .96
     .040
     .036
     .0040 <-- remainder of 4 starts repeating here, so the quotient is 1.083333...

13/12 = 1R1, ergo 13%12 = 1.

It helps to think of modulus as a "cycle".

In other words, for the expression n % 12, the result will always be < 12.

That means the sequence for the set 0..100 for n % 12 is:

{0,1,2,3,4,5,6,7,8,9,10,11,0,1,2,3,4,5,6,7,8,9,10,11,0,[...],4}

In that light, the modulus, as well as its uses, becomes much clearer.

Redirect sys.stdout to an open file handle and then all printed output goes to a file:

import sys
filename  = open("outputfile",'w')
sys.stdout = filename
print "Anything printed will go to the output file"

@Component({
  selector: 'my-app',
  template: `
    <div>
      <input name="file" type="file" (change)="onChange($event)"/>
    </div>
  `,
  providers: [ UploadService ]
})
export class AppComponent {
  file: File;
  onChange(event: EventTarget) {
        let eventObj: MSInputMethodContext = <MSInputMethodContext> event;
        let target: HTMLInputElement = <HTMLInputElement> eventObj.target;
        let files: FileList = target.files;
        this.file = files[0];
        console.log(this.file);
    }

   doAnythingWithFile() {
   }

}

You can use this syntax

python_version -m pip install your_package

For example. If you're running python3.5, you named it as "python3", and want to install numpy package

python3 -m pip install numpy

Those reference pretty much answered your question. Simply put, vectors' lengths are dynamic while arrays have a fixed size. when using an array, you specify its size upon declaration:

int myArray[100];
myArray[0]=1;
myArray[1]=2;
myArray[2]=3;

for vectors, you just declare it and add elements

vector<int> myVector;
myVector.push_back(1);
myVector.push_back(2);
myVector.push_back(3);
...

at times you wont know the number of elements needed so a vector would be ideal for such a situation.

you should change cr_date(str) to datetime object then you 'll change the date to the specific format:

cr_date = '2013-10-31 18:23:29.000227'
cr_date = datetime.datetime.strptime(cr_date, '%Y-%m-%d %H:%M:%S.%f')
cr_date = cr_date.strftime("%m/%d/%Y")

The top answer doesn't scale down the video when you're at browser widths of less than your video's width. Try using this CSS (with #bgvid being your video's id):

#bgvid {
     position: fixed;
     top: 50%;
     left: 50%;
     min-width: 100%;
     min-height: 100%;
     width: auto;
     height: auto;
     transform: translateX(-50%) translateY(-50%);
     -webkit-transform: translateX(-50%) translateY(-50%);
}

Here you have another solution based on the one provided by @tarheel

function onEdit() {
    var sheetWithNestedSelectsName = "Sitemap";
    var columnWithNestedSelectsRoot = 1;
    var sheetWithOptionPossibleValuesSuffix = "TabSections";

    var activeSpreadsheet = SpreadsheetApp.getActiveSpreadsheet();
    var activeSheet = SpreadsheetApp.getActiveSheet();

    // If we're not in the sheet with nested selects, exit!
    if ( activeSheet.getName() != sheetWithNestedSelectsName ) {
        return;
    }

    var activeCell = SpreadsheetApp.getActiveRange();

    // If we're not in the root column or a content row, exit!
    if ( activeCell.getColumn() != columnWithNestedSelectsRoot || activeCell.getRow() < 2 ) {
        return;
    }

    var sheetWithActiveOptionPossibleValues = activeSpreadsheet.getSheetByName( activeCell.getValue() + sheetWithOptionPossibleValuesSuffix );

    // Get all possible values
    var activeOptionPossibleValues = sheetWithActiveOptionPossibleValues.getSheetValues( 1, 1, -1, 1 );

    var possibleValuesValidation = SpreadsheetApp.newDataValidation();
    possibleValuesValidation.setAllowInvalid( false );
    possibleValuesValidation.requireValueInList( activeOptionPossibleValues, true );

    activeSheet.getRange( activeCell.getRow(), activeCell.getColumn() + 1 ).setDataValidation( possibleValuesValidation.build() );
}

It has some benefits over the other approach:

• You don't need to edit the script every time you add a "root option". You only have to create a new sheet with the nested options of this root option.
• I've refactored the script providing more semantic names for the variables and so on. Furthermore, I've extracted some parameters to variables in order to make it easier to adapt to your specific case. You only have to set the first 3 values.
• There's no limit of nested option values (I've used the getSheetValues method with the -1 value).

So, how to use it:

1. Create the sheet where you'll have the nested selectors
2. Go to the "Tools" > "Script Editor…" and select the "Blank project" option
3. Paste the code attached to this answer
4. Modify the first 3 variables of the script setting up your values and save it
5. Create one sheet within this same document for each possible value of the "root selector". They must be named as the value + the specified suffix.

Enjoy!

I think that this will do the trick:

table{
    table-layout: fixed;
    width: 300px;
}

Actually the problem is in pubspec.yaml, I put all images to assets/images/ and

This wrong way

flutter:
  uses-material-design: true
  assets:
  - images/

Correct

flutter:
  uses-material-design: true
  assets:
  - assets/images/

Please try below code :

public T? GetParsedOrDefaultValue<T>(string valueToParse) where T : struct, IComparable
{
 if(string.EmptyOrNull(valueToParse))return null;
  try
  {
     // return parsed value
     return (T) Convert.ChangeType(valueToParse, typeof(T));
  }
  catch(Exception)
  {
   //default as null value
   return null;
  }
 return null;
}

Arrays are in fact objects, so a reference is passed (the reference itself is passed by value, confused yet?). Quick example:

// assuming you allocated the list
public void addItem(Integer[] list, int item) {
    list[1] = item;
}

You will see the changes to the list from the calling code. However you can't change the reference itself, since it's passed by value:

// assuming you allocated the list
public void changeArray(Integer[] list) {
    list = null;
}

If you pass a non-null list, it won't be null by the time the method returns.

Regarding Phil Street's post:

It may actually be installed in your 32-bit program folder instead of your default x64, if you're running 64-bit OS. Check to see where 7-zip is installed, and if it is in Program Files (x86) then try using this instead:

PATH=%PATH%;C:\Program Files (x86)\7-Zip

There is only one way to represent null; that is with null.

console.log(null === null);   // true
console.log(null === true);   // false
console.log(null === false);  // false
console.log(null === 'null'); // false
console.log(null === "null"); // false
console.log(null === "");     // false
console.log(null === []);     // false
console.log(null === 0);      // false

That is to say; if any of the clients that consume your JSON representation use the === operator; it could be a problem for them.

no value

If you want to convey that you have an object whose attribute myCount has no value:

{ "myCount": null }

no attribute / missing attribute

What if you to convey that you have an object with no attributes:

{}

Client code will try to access myCount and get undefined; it's not there.

empty collection

What if you to convey that you have an object with an attribute myCount that is an empty list:

{ "myCount": [] }

Sounds like you want to do something like this:

{{> person {another: 'attribute'} }}

Yehuda already gave you a way of doing that:

{{> person this}}

But to clarify:

To give your partial its own data, just give it its own model inside the existing model, like so:

{{> person this.childContext}}

In other words, if this is the model you're giving to your template:

var model = {
    some : 'attribute'
}

Then add a new object to be given to the partial:

var model = {
    some : 'attribute',
    childContext : {
        'another' : 'attribute' // this goes to the child partial
    }
}

childContext becomes the context of the partial like Yehuda said -- in that, it only sees the field another, but it doesn't see (or care about the field some). If you had id in the top level model, and repeat id again in the childContext, that'll work just fine as the partial only sees what's inside childContext.

If you are not wanting to use async you can add .Result to force the code to execute synchronously:

private string GetResponseString(string text)
{
    var httpClient = new HttpClient();

    var parameters = new Dictionary<string, string>();
    parameters["text"] = text;

    var response = httpClient.PostAsync(BaseUri, new FormUrlEncodedContent(parameters)).Result;
    var contents = response.Content.ReadAsStringAsync().Result;

    return contents;
 }  

You can use split() to get string array from comma separated string. If you iterate and perform mathematical operation on element of string array then that element will be treated as number by run-time cast but still you have string array. To convert comma separated string int array see the edit.

arr = strVale.split(',');

Live Demo

var strVale = "130,235,342,124";
arr = strVale.split(',');
for(i=0; i < arr.length; i++)
    console.log(arr[i] + " * 2 = " + (arr[i])*2);

Output

130 * 2 = 260
235 * 2 = 470
342 * 2 = 684
124 * 2 = 248

Edit, Comma separated string to int Array In the above example the string are casted to numbers in expression but to get the int array from string array you need to convert it to number.

var strVale = "130,235,342,124";
var strArr = strVale.split(',');
var intArr = [];
for(i=0; i < strArr.length; i++)
   intArr.push(parseInt(strArr[i]));

1. Right click on project then select new->directory. Create a new directory and name it "test".
2. Right click on "test" folder then select Mark Directory As->Test Sources Root
3. Click on Navigate->Test->Create New Test
   Select Testing library(JUnit4 or any)
   Specify Class Name
   Select Member

That's it. We can modify the directory structure as per our need. Good luck!

Since the release of HTML5 one can now simply do:

<div hidden>This div is hidden</div>

Note: This is not supported by some old browsers, most notably IE < 11.

Hidden Attribute Documentation (MDN,W3C)

In Fragment use isAdded() It will return true if the fragment is currently attached to Activity.

If you want to check inside the Activity

 Fragment fragment = new MyFragment();
   if(fragment.getActivity()!=null)
      { // your code here}
      else{
       //do something
       }

Hope it will help someone

According to Angular Doc:
Since ngBind is an element attribute, it makes the bindings invisible to the user while the page is loading... it's the main difference...

Basically until every dom elements not loaded, we can not see them and because ngBind is attribute on the element, it waits until the doms come into play... more info below

ngBind
- directive in module ng

The ngBind attribute tells AngularJS to replace the text content of the specified HTML element with the value of a given expression, and to update the text content when the value of that expression changes.

Typically, you don't use ngBind directly, but instead you use the double curly markup like {{ expression }} which is similar but less verbose.

It is preferable to use ngBind instead of {{ expression }} if a template is momentarily displayed by the browser in its raw state before AngularJS compiles it. Since ngBind is an element attribute, it makes the bindings invisible to the user while the page is loading.

An alternative solution to this problem would be using the ngCloak directive. visit here

for more info about the ngbind visit this page: https://docs.angularjs.org/api/ng/directive/ngBind

You could do something like this as attribute, ng-bind:

<div ng-bind="my.name"></div>

or do interpolation as below:

<div>{{my.name}}</div>

or this way with ng-cloak attributes in AngularJs:

<div id="my-name" ng-cloak>{{my.name}}</div>

ng-cloak avoid flashing on the dom and wait until all be ready! this is equal to ng-bind attribute...

this function worked for me

<?php

function everything_in_tags($string, $tagname)
{
    $pattern = "#<\s*?$tagname\b[^>]*>(.*?)</$tagname\b[^>]*>#s";
    preg_match($pattern, $string, $matches);
    return $matches[1];
}

?>

In my case, I was having a similar problem:

/usr/bin/ld: Bank.cpp:(.text+0x19c): undefined reference to 'Account::SetBank(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)' collect2: error: ld returned 1 exit status

After some researches, I realized that the problem was being generated by the way that Visual Studio Code was compiling the Bank.cpp file. So, to solve that, I just prompted the follow command in order to compile the c++ file sucessful:

g++ Bank.cpp Account.cpp -o Bank

With the command above, It was able to linkage correctly the Header, Implementations and Main c++ files.

OBS: My g++ version: 9.3.0 on Ubuntu 20.04