As we recently posted on the React blog, in the vast majority of cases you don't need getDerivedStateFromProps at all.

If you just want to compute some derived data, either:

1. Do it right inside render
2. Or, if re-calculating it is expensive, use a memoization helper like memoize-one.

Here's the simplest "after" example:

import memoize from "memoize-one";

class ExampleComponent extends React.Component {
  getDerivedData = memoize(computeDerivedState);

  render() {
    const derivedData = this.getDerivedData(this.props.someValue);
    // ...
  }
}

Check out this section of the blog post to learn more.

As of iOS 6 and onward. The new diagram is as follows:

onNewIntent() is meant as entry point for singleTop activities which already run somewhere else in the stack and therefore can't call onCreate(). From activities lifecycle point of view it's therefore needed to call onPause() before onNewIntent(). I suggest you to rewrite your activity to not use these listeners inside of onNewIntent(). For example most of the time my onNewIntent() methods simply looks like this:

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    // getIntent() should always return the most recent
    setIntent(intent);
}

With all setup logic happening in onResume() by utilizing getIntent().

Are you trying to get sizes in a constructor, or any other method that is run BEFORE you get the actual picture?

You won't be getting any dimensions before all components are actually measured (since your xml doesn't know about your display size, parents positions and whatever)

Try getting values after onSizeChanged() (though it can be called with zero), or just simply waiting when you'll get an actual image.

See it in Activity Lifecycle (at Android Developers).

onCreate():

Called when the activity is first created. This is where you should do all of your normal static set up: create views, bind data to lists, etc. This method also provides you with a Bundle containing the activity's previously frozen state, if there was one. Always followed by onStart().

onRestart():

Called after your activity has been stopped, prior to it being started again. Always followed by onStart()

onStart():

Called when the activity is becoming visible to the user. Followed by onResume() if the activity comes to the foreground.

onResume():

Called when the activity will start interacting with the user. At this point your activity is at the top of the activity stack, with user input going to it. Always followed by onPause().

onPause ():

Called as part of the activity lifecycle when an activity is going into the background, but has not (yet) been killed. The counterpart to onResume(). When activity B is launched in front of activity A, this callback will be invoked on A. B will not be created until A's onPause() returns, so be sure to not do anything lengthy here.

onStop():

Called when you are no longer visible to the user. You will next receive either onRestart(), onDestroy(), or nothing, depending on later user activity. Note that this method may never be called, in low memory situations where the system does not have enough memory to keep your activity's process running after its onPause() method is called.

onDestroy():

The final call you receive before your activity is destroyed. This can happen either because the activity is finishing (someone called finish() on it, or because the system is temporarily destroying this instance of the activity to save space. You can distinguish between> these two scenarios with the isFinishing() method.

When the Activity first time loads the events are called as below:

onCreate()
onStart()
onResume()

When you click on Phone button the Activity goes to the background and the below events are called:

onPause()
onStop()

Exit the phone dialer and the below events will be called:

onRestart()
onStart()
onResume()

When you click the back button OR try to finish() the activity the events are called as below:

onPause()
onStop()
onDestroy()

Activity States

The Android OS uses a priority queue to assist in managing activities running on the device. Based on the state a particular Android activity is in, it will be assigned a certain priority within the OS. This priority system helps Android identify activities that are no longer in use, allowing the OS to reclaim memory and resources. The following diagram illustrates the states an activity can go through, during its lifetime:

These states can be broken into three main groups as follows:

Active or Running - Activities are considered active or running if they are in the foreground, also known as the top of the activity stack. This is considered the highest priority activity in the Android Activity stack, and as such will only be killed by the OS in extreme situations, such as if the activity tries to use more memory than is available on the device as this could cause the UI to become unresponsive.

Paused - When the device goes to sleep, or an activity is still visible but partially hidden by a new, non-full-sized or transparent activity, the activity is considered paused. Paused activities are still alive, that is, they maintain all state and member information, and remain attached to the window manager. This is considered to be the second highest priority activity in the Android Activity stack and, as such, will only be killed by the OS if killing this activity will satisfy the resource requirements needed to keep the Active/Running Activity stable and responsive.

Stopped - Activities that are completely obscured by another activity are considered stopped or in the background. Stopped activities still try to retain their state and member information for as long as possible, but stopped activities are considered to be the lowest priority of the three states and, as such, the OS will kill activities in this state first to satisfy the resource requirements of higher priority activities.

*Sample activity to understand the life cycle**

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
public class MainActivity extends Activity {
    String tag = "LifeCycleEvents";
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.main);
       Log.d(tag, "In the onCreate() event");
    }
    public void onStart()
    {
       super.onStart();
       Log.d(tag, "In the onStart() event");
    }
    public void onRestart()
    {
       super.onRestart();
       Log.d(tag, "In the onRestart() event");
    }
    public void onResume()
    {
       super.onResume();
       Log.d(tag, "In the onResume() event");
    }
    public void onPause()
    {
       super.onPause();
       Log.d(tag, "In the onPause() event");
    }
    public void onStop()
    {
       super.onStop();
       Log.d(tag, "In the onStop() event");
    }
    public void onDestroy()
    {
       super.onDestroy();
       Log.d(tag, "In the onDestroy() event");
    }
}

For any T object you can do:

return Request.CreateResponse<T>(HttpStatusCode.OK, Tobject);

A simple work around on this issue. As "delete" command only removes the user record in "user" table of "mysql" database, we could add it back and then drop the user completely. Then you could create user with same name.

Step 1. find the record format of user table in mysql database

use mysql;
select * from user;

Step 2. According to the columns showed in step1, create a dummy record with the user name. Insert it into the table, for example, be reminded to replace the "username" with your username.

Insert into user value ('%','username','N','N','N','N','N',
'N','N','N','N','N','N','N','N','N','N','N','N','N','N','N',
'N','N','N','N','N','N','N','N','N','','','','','0','0','0',
'0','mysql_native_password',
'*52C5E3AC6BC5E2E0BFF86978BF62A1481AC79D58','N',
'2016-12-10 23:59:12',null,'N');

Note: sometimes you may encounter issues in inserting, just change the data to make it work.

Step 3. Drop the user.

drop user username;

Now you are able to create user with same name.

Type the below command in terminal:

nano .bash_profile

And add the following lines (replace USERNAME with your own user name).

export ANDROID_HOME=/Users/USERNAME/Library/Android/sdk 
export PATH=${PATH}:${ANDROID_HOME}/tools 
export PATH=${PATH}:${ANDROID_HOME}/platform-tools

Close the text editor, and then enter the command below:

source .bash_profile

Try running the following query:

repair table <table_name>;

I had the same issue and it solved me the problem.

I actually ended up building my own Component. <Redirect> It takes info from the react-router element so I can keep it in my routes. Such as:

<Route
  path="/privacy-policy"
  component={ Redirect }
  loc="https://meetflo.zendesk.com/hc/en-us/articles/230425728-Privacy-Policies"
  />

Here is my component incase-anyone is curious:

import React, { Component } from "react";

export class Redirect extends Component {
  constructor( props ){
    super();
    this.state = { ...props };
  }
  componentWillMount(){
    window.location = this.state.route.loc;
  }
  render(){
    return (<section>Redirecting...</section>);
  }
}

export default Redirect;

EDIT -- NOTE: This is with react-router: 3.0.5, it is not so simple in 4.x

requests

https://github.com/kennethreitz/requests/

Here's a few common ways to use it:

import requests
url = 'https://...'
payload = {'key1': 'value1', 'key2': 'value2'}

# GET
r = requests.get(url)

# GET with params in URL
r = requests.get(url, params=payload)

# POST with form-encoded data
r = requests.post(url, data=payload)

# POST with JSON 
import json
r = requests.post(url, data=json.dumps(payload))

# Response, status etc
r.text
r.status_code

httplib2

https://github.com/jcgregorio/httplib2

>>> from httplib2 import Http
>>> from urllib import urlencode
>>> h = Http()
>>> data = dict(name="Joe", comment="A test comment")
>>> resp, content = h.request("http://bitworking.org/news/223/Meet-Ares", "POST", urlencode(data))
>>> resp
{'status': '200', 'transfer-encoding': 'chunked', 'vary': 'Accept-Encoding,User-Agent',
 'server': 'Apache', 'connection': 'close', 'date': 'Tue, 31 Jul 2007 15:29:52 GMT', 
 'content-type': 'text/html'}

In "References", import DAO 3.6 object reference.

private sub showTableData

dim db as dao.database
dim rs as dao.recordset

set db = currentDb
set rs = db.OpenRecordSet("myTable") 'myTable is a MS-Access table created previously

'populate the table
rs.movelast
rs.movefirst

do while not rs.EOF
   debug.print(rs!myField) 'myField is a field name in table myTable
   rs.movenext             'press Ctrl+G to see debuG window beneath
loop

msgbox("End of Table")

end sub

You can interate data objects like queries and filtered tables in different ways:

Trhough query:

private sub showQueryData

dim db as dao.database
dim rs as dao.recordset
dim sqlStr as string

sqlStr = "SELECT * FROM customers as c WHERE c.country='Brazil'"

set db = currentDb
set rs = db.openRecordset(sqlStr)

rs.movefirst

do while not rs.EOF
  debug.print("cust ID: " & rs!id & " cust name: " & rs!name)
  rs.movenext
loop

msgbox("End of customers from Brazil")

end sub

You should also look for "Filter" property of the recordset object to filter only the desired records and then interact with them in the same way (see VB6 Help in MS-Access code window), or create a "QueryDef" object to run a query and use it as a recordset too (a little bit more tricky). Tell me if you want another aproach.

I hope I've helped.

Starting from Java 7 you can use try-with-resources Statement

try (BufferedReader br = new BufferedReader(new FileReader(path))) {
    return br.readLine();
}

Because the BufferedReader instance is declared in a try-with-resource statement, it will be closed regardless of whether the try statement completes normally or abruptly. So you don't need to close it yourself in the finally statement. (This is also the case with nested resource statements)

This is the recomanded way to work with resources, see the documentation for more detailed information

filename specifies the name of file into which all your bundled code is going to get accumulated after going through build step.

path specifies the output directory where the app.js(filename) is going to get saved in the disk. If there is no output directory, webpack is going to create that directory for you. for example:

module.exports = {
  output: {
    path: path.resolve("./examples/dist"),
    filename: "app.js"
  } 
}

This will create a directory myproject/examples/dist and under that directory it creates app.js, /myproject/examples/dist/app.js. After building, you can browse to myproject/examples/dist/app.js to see the bundled code

publicPath: "What should I put here?"

publicPath specifies the virtual directory in web server from where bundled file, app.js is going to get served up from. Keep in mind, the word server when using publicPath can be either webpack-dev-server or express server or other server that you can use with webpack.

for example

module.exports = {
  output: {
    path: path.resolve("./examples/dist"),
    filename: "app.js",
    publicPath: path.resolve("/public/assets/js")   
  } 
}

this configuration tells webpack to bundle all your js files into examples/dist/app.js and write into that file.

publicPath tells webpack-dev-server or express server to serve this bundled file ie examples/dist/app.js from specified virtual location in server ie /public/assets/js. So in your html file, you have to reference this file as

<script src="public/assets/js/app.js"></script>

So in summary, publicPath is like mapping between virtual directory in your server and output directory specified by output.path configuration, Whenever request for file public/assets/js/app.js comes, /examples/dist/app.js file will be served

You must create your own SSLSocketFactory based on Bouncy Castle. After to use it, pass to the common HttpsConnextion for using this customized SocketFactory.

1. First : Create a TLSConnectionFactory

Here one tips:

1.1 Extend SSLConnectionFactory

1.2 Override this method :

@Override 
public Socket createSocket(Socket socket, final String host, int port, boolean arg3)

This method will call the next internal method,

1.3 Implement an internal method _createSSLSocket(host, tlsClientProtocol);

Here you must create a Socket using TlsClientProtocol . The trick is override ...startHandshake() method calling TlsClientProtocol

 private SSLSocket _createSSLSocket(final String host , final TlsClientProtocol tlsClientProtocol) {
     return new SSLSocket() {    
       .... Override and implement SSLSocket methods,  particulary: 
            startHandshake() {
             }    
     }

     

Important : The full sample how to use TLS Client Protocol is well explained here: Using BouncyCastle for a simple HTTPS query

2. Second : Use this Customized SSLConnextionFactory on common HTTPSConnection.

This is important ! In other samples you can see into the web , u see hard-coded HTTP Commands....so with a customized SSLConnectionFactory u don't need nothing more...

  URL myurl = new URL( "http:// ...URL tha only Works in TLS 1.2);
  HttpsURLConnection  con = (HttpsURLConnection )myurl.openConnection();
  con.setSSLSocketFactory(new TSLSocketConnectionFactory());

I know this is old, but i stumbled on it with Google.

If you have a return value in your stored procedure say "Return 1" - not using output parameters.

You can do the following - "@RETURN_VALUE" is silently added to every command object. NO NEED TO EXPLICITLY ADD

    cmd.ExecuteNonQuery();
    rtn = (int)cmd.Parameters["@RETURN_VALUE"].Value;

Here is a solution that works with only the standard packages. matplotlib has a PDF backend to save figures to PDF. You can create a figures with subplots, where each subplot is one of your images. You have full freedom to mess with the figure: Adding titles, play with position, etc. Once your figure is done, save to PDF. Each call to savefig will create another page of PDF.

Example below plots 2 images side-by-side, on page 1 and page 2.

from matplotlib.backends.backend_pdf import PdfPages
import matplotlib.pyplot as plt
from scipy.misc import imread
import os
import numpy as np

files = [ "Column0_Line16.jpg", "Column0_Line47.jpg" ]
def plotImage(f):
    folder = "C:/temp/"
    im = imread(os.path.join(folder, f)).astype(np.float32) / 255
    plt.imshow(im)
    a = plt.gca()
    a.get_xaxis().set_visible(False) # We don't need axis ticks
    a.get_yaxis().set_visible(False)

pp = PdfPages("c:/temp/page1.pdf")
plt.subplot(121)
plotImage(files[0])
plt.subplot(122)
plotImage(files[1])
pp.savefig(plt.gcf()) # This generates page 1
pp.savefig(plt.gcf()) # This generates page 2
pp.close()

I was able to connect Robomongo to a remote instance of MongoDB running on Mongo Labs using the connection string as follows:

1. Download the latest version of Robomongo. I downloaded 0.9 RC6 from here.

2. From the connection string, populate the server address and port numbers as follows.

   

3. Populate DB name and username and password as follows under the authentication tab.

   

4. Test the connection.

   

   

Response is already parsed, you don't need to parse it again. if you parse it again it will give you "unexpected token o". if you need to get it as string, you could use JSON.stringify()

Do configure --help and see what other options are available.

It is very common to provide different options to override different locations. By standard, --prefix overrides all of them, so you need to override config location after specifying the prefix. This course of actions usually works for every automake-based project.

The worse case scenario is when you need to modify the configure script, or even worse, generated makefiles and config.h headers. But yeah, for Xfce you can try something like this:

./configure --prefix=/home/me/somefolder/mybuild/output/target --sysconfdir=/etc 

I believe that should do it.

A little convenience script expanding on previous answers.

#!/bin/bash

# Uninstall node.js
# 
# Options:
#
# -d Actually delete files, otherwise the script just _prints_ a command to delete.
# -p Installation prefix. Default /usr/local
# -f BOM file. Default /var/db/receipts/org.nodejs.pkg.bom

CMD="echo sudo rm -fr"
BOM_FILE="/var/db/receipts/org.nodejs.pkg.bom"
PREFIX="/usr/local"

while getopts "dp:f:" arg; do
    case $arg in
        d)
            CMD="sudo rm -fr"
            ;;
        p)
            PREFIX=$arg
            ;;
        f)
            BOM_FILE=$arg
            ;;
    esac
done

lsbom -f -l -s -pf ${BOM_FILE} \
    | while read i; do
          $CMD ${PREFIX}/${i}
      done

$CMD ${PREFIX}/lib/node \
     ${PREFIX}/lib/node_modules \
     ${BOM_FILE}

Save it to file and run with:

# bash filename.sh

When you want start a new activity and finish the current activity you can do this:

API 11 or greater

Intent intent = new Intent(OldActivity.this, NewActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);

API 10 or lower

Intent intent = new Intent(OldActivity.this, NewActivity.class);
intent.setFlags(IntentCompat.FLAG_ACTIVITY_NEW_TASK | IntentCompat.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);

I hope this can help somebody =)

You can use following formulas.

For Excel 2007 or later:

=IFERROR(VLOOKUP(D3,List!A:C,3,FALSE),"No Match")

For Excel 2003:

=IF(ISERROR(MATCH(D3,List!A:A, 0)), "No Match", VLOOKUP(D3,List!A:C,3,FALSE))

Note, that

• I'm using List!A:C in VLOOKUP and returns value from column ? 3
• I'm using 4th argument for VLOOKUP equals to FALSE, in that case VLOOKUP will only find an exact match, and the values in the first column of List!A:C do not need to be sorted (opposite to case when you're using TRUE).

Well, to answer the immediate question:

>>> s = "http://www.domain.com/?s=some&two=20"

The rfind method returns the index of right-most substring:

>>> s.rfind("&")
29

You can take all elements up to a given index with the slicing operator:

>>> "foobar"[:4]
'foob'

Putting the two together:

>>> s[:s.rfind("&")]
'http://www.domain.com/?s=some'

If you are dealing with URLs in particular, you might want to use built-in libraries that deal with URLs. If, for example, you wanted to remove two from the above query string:

First, parse the URL as a whole:

>>> import urlparse, urllib
>>> parse_result = urlparse.urlsplit("http://www.domain.com/?s=some&two=20")
>>> parse_result
SplitResult(scheme='http', netloc='www.domain.com', path='/', query='s=some&two=20', fragment='')

Take out just the query string:

>>> query_s = parse_result.query
>>> query_s
's=some&two=20'

Turn it into a dict:

>>> query_d = urlparse.parse_qs(parse_result.query)
>>> query_d
{'s': ['some'], 'two': ['20']}
>>> query_d['s']
['some']
>>> query_d['two']
['20']

Remove the 'two' key from the dict:

>>> del query_d['two']
>>> query_d
{'s': ['some']}

Put it back into a query string:

>>> new_query_s = urllib.urlencode(query_d, True)
>>> new_query_s
's=some'

And now stitch the URL back together:

>>> result = urlparse.urlunsplit((
    parse_result.scheme, parse_result.netloc,
    parse_result.path, new_query_s, parse_result.fragment))
>>> result
'http://www.domain.com/?s=some'

The benefit of this is that you have more control over the URL. Like, if you always wanted to remove the two argument, even if it was put earlier in the query string ("two=20&s=some"), this would still do the right thing. It might be overkill depending on what you want to do.

The logic applies to many other objectives. And how to read .sh_history of each user from /home/ filesystem? What if there are thousand of them?

#!/bin/ksh
last |head -10|awk '{print $1}'|
 while IFS= read -r line
 do
su - "$line" -c 'tail .sh_history'
 done

Here is the script https://github.com/imvieira/SysAdmin_DevOps_Scripts/blob/master/get_and_run.sh

Recognizing only numbers is actually answered on the tesseract FAQ page. See that page for more info, but if you have the version 3 package, the config files are already set up. You just specify on the commandline:

tesseract image.tif outputbase nobatch digits

As for the threshold value, I'm not sure which you mean. If your input is an unusual font, perhaps you might retrain with a sample of your input. An alternative is to change tesseract's pruning threshold. Both options are also mentioned in the FAQ.

There are lots of way, some:

• XmlSerializer. use a class with the target schema you want to read - use XmlSerializer to get the data in an Xml loaded into an instance of the class.
• Linq 2 xml
• XmlTextReader.
• XmlDocument
• XPathDocument (read-only access)

One major difference that no one has pointed out so far and that might be important to some people is that (at least on Windows) Atom doesn't fully support other keyboard layouts than US. There is an bug report on that with a few hundred posts that has been open for more than a year now (https://github.com/atom/atom-keymap/issues/35).

Might be relevant when choosing an editor.

Try this single line solution :

import java.util.Date;
String timestamp = 
    new java.text.SimpleDateFormat("MM/dd/yyyy h:mm:ss a").format(new Date());

Try this:

sudo chmod +x program_name
./program_name 

Websockets and SSE (Server Sent Events) are both capable of pushing data to browsers, however they are not competing technologies.

Websockets connections can both send data to the browser and receive data from the browser. A good example of an application that could use websockets is a chat application.

SSE connections can only push data to the browser. Online stock quotes, or twitters updating timeline or feed are good examples of an application that could benefit from SSE.

In practice since everything that can be done with SSE can also be done with Websockets, Websockets is getting a lot more attention and love, and many more browsers support Websockets than SSE.

However, it can be overkill for some types of application, and the backend could be easier to implement with a protocol such as SSE.

Furthermore SSE can be polyfilled into older browsers that do not support it natively using just JavaScript. Some implementations of SSE polyfills can be found on the Modernizr github page.

Gotchas:

• SSE suffers from a limitation to the maximum number of open connections, which can be specially painful when opening various tabs as the limit is per browser and set to a very low number (6). The issue has been marked as "Won't fix" in Chrome and Firefox. This limit is per browser + domain, so that means that you can open 6 SSE connections across all of the tabs to www.example1.com and another 6 SSE connections to www.example2.com (thanks Phate).
• Only WS can transmit both binary data and UTF-8, SSE is limited to UTF-8. (Thanks to Chado Nihi).
• Some enterprise firewalls with packet inspection have trouble dealing with WebSockets (Sophos XG Firewall, WatchGuard, McAfee Web Gateway).

HTML5Rocks has some good information on SSE. From that page:

Server-Sent Events vs. WebSockets

Why would you choose Server-Sent Events over WebSockets? Good question.

One reason SSEs have been kept in the shadow is because later APIs like WebSockets provide a richer protocol to perform bi-directional, full-duplex communication. Having a two-way channel is more attractive for things like games, messaging apps, and for cases where you need near real-time updates in both directions. However, in some scenarios data doesn't need to be sent from the client. You simply need updates from some server action. A few examples would be friends' status updates, stock tickers, news feeds, or other automated data push mechanisms (e.g. updating a client-side Web SQL Database or IndexedDB object store). If you'll need to send data to a server, XMLHttpRequest is always a friend.

SSEs are sent over traditional HTTP. That means they do not require a special protocol or server implementation to get working. WebSockets on the other hand, require full-duplex connections and new Web Socket servers to handle the protocol. In addition, Server-Sent Events have a variety of features that WebSockets lack by design such as automatic reconnection, event IDs, and the ability to send arbitrary events.

TLDR summary:

Advantages of SSE over Websockets:

• Transported over simple HTTP instead of a custom protocol
• Can be poly-filled with javascript to "backport" SSE to browsers that do not support it yet.
• Built in support for re-connection and event-id
• Simpler protocol
• No trouble with corporate firewalls doing packet inspection

Advantages of Websockets over SSE:

• Real time, two directional communication.
• Native support in more browsers

Ideal use cases of SSE:

• Stock ticker streaming
• twitter feed updating
• Notifications to browser

SSE gotchas:

• No binary support
• Maximum open connections limit

There's a super() in Python too. It's a bit wonky, because of Python's old- and new-style classes, but is quite commonly used e.g. in constructors:

class Foo(Bar):
    def __init__(self):
        super(Foo, self).__init__()
        self.baz = 5

sudo ./scriptname

You don't have JSON. You have a JavaScript data structure consisting of objects, an array, some strings and some numbers.

Use JSON.stringify(object) to turn it into (a string of) JSON text.

Something like this lets you test your procedure on almost any client:

DECLARE 
  v_cur SYS_REFCURSOR;
  v_a   VARCHAR2(10);
  v_b   VARCHAR2(10);
BEGIN
  your_proc(v_cur);

  LOOP
    FETCH v_cur INTO v_a, v_b;
    EXIT WHEN v_cur%NOTFOUND;
    dbms_output.put_line(v_a || ' ' || v_b);
  END LOOP;
  CLOSE v_cur;
END;

Basically, your test harness needs to support the definition of a SYS_REFCURSOR variable and the ability to call your procedure while passing in the variable you defined, then loop through the cursor result set. PL/SQL does all that, and anonymous blocks are easy to set up and maintain, fairly adaptable, and quite readable to anyone who works with PL/SQL.

Another, albeit similar way would be to build a named procedure that does the same thing, and assuming the client has a debugger (like SQL Developer, PL/SQL Developer, TOAD, etc.) you could then step through the execution.

Needed this answer myself and from the link provided by David Moye, decided on this and thought it might be of use to others with the same question:

CREATE PROCEDURE ...
AS
BEGIN
  BEGIN TRANSACTION

  -- lock table "a" till end of transaction
  SELECT ...
  FROM a
  WITH (TABLOCK, HOLDLOCK)
  WHERE ...

  -- do some other stuff (including inserting/updating table "a")



  -- release lock
  COMMIT TRANSACTION
END

Try this:

<input type="text" placeholder="some text" class="search" onkeydown="search(this)"/>  
<input type="text" placeholder="some text" class="search" onkeydown="search(this)"/>

JS Code

function search(ele) {
    if(event.key === 'Enter') {
        alert(ele.value);        
    }
}

DEMO Link

Here's a compact way to do something different in all four cases:

if(empty($youtube)) {
    if(empty($link)) {
        # both empty
    } else {
        # only $youtube not empty
    }
} else {
    if(empty($link)) {
        # only $link empty
    } else {
        # both not empty
    }
}

If you want to use an expression instead, you can use ?: instead:

echo empty($youtube) ? ( empty($link) ? 'both empty' : 'only $youtube not empty' )
                     : ( empty($link) ? 'only $link empty' : 'both not empty' );

I think these could be helpful for you .

Using a SELECT statement with a simple CASE expression

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

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

Using a SELECT statement with a searched CASE expression

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

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

Using CASE in an ORDER BY clause

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

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


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

Using CASE in an UPDATE statement

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

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

Using CASE in a HAVING clause

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

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

For more details description of these example visit the source.

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

what about a one-liner using String.split()?

String s = "foo,bar,c;qual=\"baz,blurb\",d;junk=\"quux,syzygy\"";
String[] split = s.split( "(?<!\".{0,255}[^\"]),|,(?![^\"].*\")" );

Using [Authorize] attributes can help prevent security holes in your application. The way that MVC handles URL's (i.e. routing them to a controller rather than to an actual file) makes it difficult to actually secure everything via the web.config file.

Read more here: http://blogs.msdn.com/b/rickandy/archive/2012/03/23/securing-your-asp-net-mvc-4-app-and-the-new-allowanonymous-attribute.aspx (via archive.org)

You can use multiprocessing.Pool:

from multiprocessing import Pool
class Engine(object):
    def __init__(self, parameters):
        self.parameters = parameters
    def __call__(self, filename):
        sci = fits.open(filename + '.fits')
        manipulated = manipulate_image(sci, self.parameters)
        return manipulated

try:
    pool = Pool(8) # on 8 processors
    engine = Engine(my_parameters)
    data_outputs = pool.map(engine, data_inputs)
finally: # To make sure processes are closed in the end, even if errors happen
    pool.close()
    pool.join()

The problem with the solution suggested is that it can break some performance features built into the SessionState if you are using an out-of-process session storage. (either "State Server Mode" or "SQL Server Mode"). In oop modes the session data needs to be serialized at the end of the page request and deserialized at the beginning of the page request, which can be costly. To improve the performance the SessionState attempts to only deserialize what is needed by only deserialize variable when it is accessed the first time, and it only re-serializes and replaces variable which were changed. If you have alot of session variable and shove them all into one class essentially everything in your session will be deserialized on every page request that uses session and everything will need to be serialized again even if only 1 property changed becuase the class changed. Just something to consider if your using alot of session and an oop mode.

There is no WPF equivalent. System.Windows.Forms.Screen is still part of the .NET framework and can be used from WPF though.

See this question for more details, but you can use the calls relating to screens by using the WindowInteropHelper class to wrap your WPF control.

My Answer might be coming late, but I think it can help newbie. You shall not see logs executed unless the changes are made as below.

2 Files have to be changes when you implement Log4net.

1. Add Reference of log4net.dll in the project.
2. app.config
3. Class file where you will implement Logs.

Inside [app.config] :

First, under 'configSections', you need to add below piece of code;

<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />

Then, under 'configuration' block, you need to write below piece of code.(This piece of code is customised as per my need , but it works like charm.)

<log4net debug="true">
    <logger name="log">
      <level value="All"></level>
      <appender-ref ref="RollingLogFileAppender" />
    </logger>

    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
      <file value="log.txt" />
      <appendToFile value="true" />
      <rollingStyle value="Composite" />
      <maxSizeRollBackups value="1" />
      <maximumFileSize value="1MB" />
      <staticLogFileName value="true" />

      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date %C.%M [%line] %-5level - %message %newline %exception %newline" />
      </layout>
    </appender>
</log4net>

Inside Calling Class :

Inside the class where you are going to use this log4net, you need to declare below piece of code.

 ILog log = LogManager.GetLogger("log");

Now, you are ready call log wherever you want in that same class. Below is one of the method you can call while doing operations.

log.Error("message");

Keeping it simple :

a = 0

The code above gives a global scope variable

var a = 0;

This code will give a variable to be used in the current scope, and under it

window.a = 0;

This generally is same as the global variable.

In Visual Studio 2017, unchecked the ContextSwitchDeadlock option by:

Debug > Windows > Exception Settings

In Exception Setting Windows: Uncheck the ContextSwitchDeadlock option

Generally it means that you are providing an index for which a list element does not exist.

E.g, if your list was [1, 3, 5, 7], and you asked for the element at index 10, you would be well out of bounds and receive an error, as only elements 0 through 3 exist.

You can do get id value by using

test_alert = $('#myDiv').val();_x000D_
alert(test_alert);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="myDiv"><p>Some Text</p></div>

In order to parse a java.util.Date object you have to convert it to String first using your own format.

inActiveDate = format1.parse(  format1.format(date)  );

But I believe you are being redundant here.

Most of the methods works, but the excel process always stay until close the appliation.

When kill excel process once it can't be executed once again in the same thread - don't know why.

Short Answer: Invoke draggable on the legend and interactively move it wherever you want:

ax.legend().draggable()

Long Answer: If you rather prefer to place the legend interactively/manually rather than programmatically, you can toggle the draggable mode of the legend so that you can drag it to wherever you want. Check the example below:

import matplotlib.pylab as plt
import numpy as np
#define the figure and get an axes instance
fig = plt.figure()
ax = fig.add_subplot(111)
#plot the data
x = np.arange(-5, 6)
ax.plot(x, x*x, label='y = x^2')
ax.plot(x, x*x*x, label='y = x^3')
ax.legend().draggable()
plt.show()

Windows batch file for installing TensorFlow and Python 3.5 on Windows. The issue is that as of this date, TensorFlow is not updated to support Python 3.6+ and will not install. Additionally, many systems have an incompatible version of Python. This batch file should create a compatible environment without effecting other Python installs. See REM comments for assumptions.

REM download Anaconda3-4.2.0-Windows-x86_64.exe (contains python 3.5) from https://repo.continuum.io/archive/index.html
REM Assumes download is in %USERPROFILE%\Downloads
%USERPROFILE%\Downloads\Anaconda3-4.2.0-Windows-x86_64.exe

REM change path to use Anaconda3 (python 3.5).
PATH %USERPROFILE%\Anaconda3;%USERPROFILE%\Anaconda3\Scripts;%USERPROFILE%\Anaconda3\Library\bin;%PATH%

REM update pip to 9.0 or later (mandatory)
python -m pip install --upgrade pip

REM tell conda where to load tensorflow
conda config --add channels conda-forge

REM elevate command (mandatory) and install tensorflow - use explicit path to conda %USERPROFILE%\Anaconda3\scripts\conda
powershell.exe -Command start-process -verb runas cmd {/K "%USERPROFILE%\Anaconda3\scripts\conda install tensorflow"}

Be sure the above PATH is used when invoking TensorFlow.

I resolved this issue in my linux enviroment updating the IP of my machine in /etc/hosts file.

You can verify your network IP (inet end.) with:

$ifconfig

See if your IP matches with /etc/hosts file:

$cat /etc/hosts

Edit your /etc/hosts file, if nedded:

$sudo gedit /etc/hosts

Bye.

Call "setWarningMsg()" Method and pass the text that you want to show.

exm:- setWarningMsg("thank you for using java");


public static void setWarningMsg(String text){
    Toolkit.getDefaultToolkit().beep();
    JOptionPane optionPane = new JOptionPane(text,JOptionPane.WARNING_MESSAGE);
    JDialog dialog = optionPane.createDialog("Warning!");
    dialog.setAlwaysOnTop(true);
    dialog.setVisible(true);
}

Or Just use

JOptionPane optionPane = new JOptionPane("thank you for using java",JOptionPane.WARNING_MESSAGE);
JDialog dialog = optionPane.createDialog("Warning!");
dialog.setAlwaysOnTop(true); // to show top of all other application
dialog.setVisible(true); // to visible the dialog

You can use JOptionPane. (WARNING_MESSAGE or INFORMATION_MESSAGE or ERROR_MESSAGE)

Matt Zeunert's version with use arraw function (ES6)

const nums = a.split(',').map(x => parseInt(x, 10));

I found problems with the two common ways of doing this:

1. Doing this with custom headers (<customHeaders>) in web.config allows different deployments of the same application to have this set differently. I see this as one more thing that can go wrong, so I think it's better if the application specifies this in code. Also, IIS6 doesn't support this.

2. Including an HTML <meta> tag in a Web Forms Master Page or MVC Layout Page seems better than the above. However, if some pages don't inherit from these then the tag needs to be duplicated, so there's a potential maintainability and reliability problem.

3. Network traffic could be reduced by only sending the X-UA-Compatible header to Internet Explorer clients.

Well-Structured Applications

If your application is structured in a way that causes all pages to ultimately inherit from a single root page, include the <meta> tag as shown in the other answers.

Legacy Applications

Otherwise, I think the best way to do this is to automatically add the HTTP header to all HTML responses. One way to do this is using an IHttpModule:

public class IeCompatibilityModeDisabler : IHttpModule
{
    public void Init(HttpApplication context)
    {
        context.PreSendRequestHeaders += (sender, e) => DisableCompatibilityModeIfApplicable();
    }

    private void DisableCompatibilityModeIfApplicable()
    {
        if (IsIe && IsPage)
            DisableCompatibilityMode();
    }

    private void DisableCompatibilityMode()
    {
        var response = Context.Response;
        response.AddHeader("X-UA-Compatible", "IE=edge");
    }

    private bool IsIe { get { return Context.Request.Browser.IsBrowser("IE"); } }

    private bool IsPage { get { return Context.Handler is Page; } }

    private HttpContext Context { get { return HttpContext.Current; } }

    public void Dispose() { }
}

IE=edge indicates that IE should use its latest rendering engine (rather than compatibility mode) to render the page.

It seems that HTTP modules are often registered in the web.config file, but this brings us back to the first problem. However, you can register them programmatically in Global.asax like this:

public class Global : HttpApplication
{
    private static IeCompatibilityModeDisabler module;

    void Application_Start(object sender, EventArgs e)
    {
        module = new IeCompatibilityModeDisabler();
    }

    public override void Init()
    {
        base.Init();
        module.Init(this);
    }
}

Note that it is important that the module is static and not instantiated in Init so that there is only one instance per application. Of course, in a real-world application an IoC container should probably be managing this.

Advantages

• Overcomes the problems outlined at the start of this answer.

Disadvantages

• Website admins don't have control over the header value. This could be a problem if a new version of Internet Explorer comes out and adversely affects the rendering of the website. However, this could be overcome by having the module read the header value from the application's configuration file instead of using a hard-coded value.
• This may require modification to work with ASP.NET MVC.
• This doesn't work for static HTML pages.
• The PreSendRequestHeaders event in the above code doesn't seem to fire in IIS6. I haven't figured out how to resolve this bug yet.

If you want only those commits which are done by you in a particular branch, use the below command.

git log branch_name --author='Dyaniyal'

The key here is to visualise the call tree. Once done that, the complexity is:

nodes of the call tree * complexity of other code in the function

the latter term can be computed the same way we do for a normal iterative function.

Instead, the total nodes of a complete tree are computed as

                  C^L - 1
                  -------  , when C>1
               /   C - 1
              /
 # of nodes =
              \    
               \ 
                  L        , when C=1

Where C is number of children of each node and L is the number of levels of the tree (root included).

It is easy to visualise the tree. Start from the first call (root node) then draw a number of children same as the number of recursive calls in the function. It is also useful to write the parameter passed to the sub-call as "value of the node".

So, in the examples above:

1. the call tree here is C = 1, L = n+1. Complexity of the rest of function is O(1). Therefore total complexity is L * O(1) = (n+1) * O(1) = O(n)

n     level 1
n-1   level 2
n-2   level 3
n-3   level 4
... ~ n levels -> L = n

2. call tree here is C = 1, L = n/5. Complexity of the rest of function is O(1). Therefore total complexity is L * O(1) = (n/5) * O(1) = O(n)

n
n-5
n-10
n-15
... ~ n/5 levels -> L = n/5

3. call tree here is C = 1, L = log(n). Complexity of the rest of function is O(1). Therefore total complexity is L * O(1) = log5(n) * O(1) = O(log(n))

n
n/5
n/5^2
n/5^3
... ~ log5(n) levels -> L = log5(n)

4. call tree here is C = 2, L = n. Complexity of the rest of function is O(1). This time we use the full formula for the number of nodes in the call tree because C > 1. Therefore total complexity is (C^L-1)/(C-1) * O(1) = (2^n - 1) * O(1) = O(2^n).

               n                   level 1
      n-1             n-1          level 2
  n-2     n-2     n-2     n-2      ...
n-3 n-3 n-3 n-3 n-3 n-3 n-3 n-3    ...     
              ...                ~ n levels -> L = n

5. call tree here is C = 1, L = n/5. Complexity of the rest of function is O(n). Therefore total complexity is L * O(1) = (n/5) * O(n) = O(n^2)

n
n-5
n-10
n-15
... ~ n/5 levels -> L = n/5

If you will apply security="none" then no csrf token will be generated. The page will not pass through security filter. Use role ANONYMOUS.

I have not gone in details, but it is working for me.

 <http auto-config="true" use-expressions="true">
   <intercept-url pattern="/login.jsp" access="hasRole('ANONYMOUS')" />
   <!-- you configuration -->
   </http>

After digging around a bit, i found this. It seems to be the answer:

Updated (11/April/2018)

• The token will expire after about 60 days.
• The token will be refreshed once per day, for up to 90 days, when the person using your app makes a request to Facebook's servers.
• All access tokens need to be renewed every 90 days with the consent of the person using your app.

Facebook change announce (10/04/2018)

Facebook updated token expiration page (10/04/2018)

offline_access: Enables your application to perform authorized requests on behalf of the user at any time. By default, most access tokens expire after a short time period to ensure applications only make requests on behalf of the user when the are actively using the application. This permission makes the access token returned by our OAuth endpoint long-lived.

Its a permission value requested.

http://developers.facebook.com/docs/authentication/permissions

UPDATE

offline_access permission has been removed a while ago.

https://developers.facebook.com/docs/roadmap/completed-changes/offline-access-removal/

Here is another non-regexp, non-super-awesome, non-super-optimized, however very easy to understand non-external-lib solution:

public static String trimStringByString(String text, String trimBy) {
    int beginIndex = 0;
    int endIndex = text.length();

    while (text.substring(beginIndex, endIndex).startsWith(trimBy)) {
        beginIndex += trimBy.length();
    } 

    while (text.substring(beginIndex, endIndex).endsWith(trimBy)) {
        endIndex -= trimBy.length();
    }

    return text.substring(beginIndex, endIndex);
}

Usage:

String trimmedString = trimStringByString(stringToTrim, "/");

Try the following:

MemoryStream stream = new MemoryStream();
Bitmap bitmap = new Bitmap();
bitmap.Save(stream, ImageFormat.Jpeg);

byte[] byteArray = stream.GetBuffer();

Make sure you are using:

System.Drawing & using System.Drawing.Imaging;

You can use ymd from lubridate

lubridate::ymd(v)
#[1] "2008-11-01"

Or anytime::anydate

anytime::anydate(v)
#[1] "2008-11-01"

Of cause it's possible to create dynamic classes using very cool ExpandoObject class. But recently I worked on project and faced that Expando Object is serealized in not the same format on xml as an simple Anonymous class, it was pity =( , that is why I decided to create my own class and share it with you. It's using reflection and dynamic directive , builds Assembly, Class and Instance truly dynamicly. You can add, remove and change properties that is included in your class on fly Here it is :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Reflection.Emit;
using static YourNamespace.DynamicTypeBuilderTest;

namespace YourNamespace
{

    /// This class builds Dynamic Anonymous Classes

    public class DynamicTypeBuilderTest
    {    
        ///   
        /// Create instance based on any Source class as example based on PersonalData
        ///
        public static object CreateAnonymousDynamicInstance(PersonalData personalData, Type dynamicType, List<ClassDescriptorKeyValue> classDescriptionList)
        {
            var obj = Activator.CreateInstance(dynamicType);

            var propInfos = dynamicType.GetProperties();

            classDescriptionList.ForEach(x => SetValueToProperty(obj, propInfos, personalData, x));

            return obj;
        }

        private static void SetValueToProperty(object obj, PropertyInfo[] propInfos, PersonalData aisMessage, ClassDescriptorKeyValue description)
        {
            propInfos.SingleOrDefault(x => x.Name == description.Name)?.SetValue(obj, description.ValueGetter(aisMessage), null);
        }

        public static dynamic CreateAnonymousDynamicType(string entityName, List<ClassDescriptorKeyValue> classDescriptionList)
        {
            AssemblyName asmName = new AssemblyName();
            asmName.Name = $"{entityName}Assembly";
            AssemblyBuilder assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(asmName, AssemblyBuilderAccess.RunAndCollect);

            ModuleBuilder moduleBuilder = assemblyBuilder.DefineDynamicModule($"{asmName.Name}Module");

            TypeBuilder typeBuilder = moduleBuilder.DefineType($"{entityName}Dynamic", TypeAttributes.Public);

            classDescriptionList.ForEach(x => CreateDynamicProperty(typeBuilder, x));

            return typeBuilder.CreateTypeInfo().AsType();
        }

        private static void CreateDynamicProperty(TypeBuilder typeBuilder, ClassDescriptorKeyValue description)
        {
            CreateDynamicProperty(typeBuilder, description.Name, description.Type);
        }

        ///
        ///Creation Dynamic property (from MSDN) with some Magic
        ///
        public static void CreateDynamicProperty(TypeBuilder typeBuilder, string name, Type propType)
        {
            FieldBuilder fieldBuider = typeBuilder.DefineField($"{name.ToLower()}Field",
                                                            propType,
                                                            FieldAttributes.Private);

            PropertyBuilder propertyBuilder = typeBuilder.DefineProperty(name,
                                                             PropertyAttributes.HasDefault,
                                                             propType,
                                                             null);

            MethodAttributes getSetAttr =
                MethodAttributes.Public | MethodAttributes.SpecialName |
                    MethodAttributes.HideBySig;

            MethodBuilder methodGetBuilder =
                typeBuilder.DefineMethod($"get_{name}",
                                           getSetAttr,
                                           propType,
                                           Type.EmptyTypes);

            ILGenerator methodGetIL = methodGetBuilder.GetILGenerator();

            methodGetIL.Emit(OpCodes.Ldarg_0);
            methodGetIL.Emit(OpCodes.Ldfld, fieldBuider);
            methodGetIL.Emit(OpCodes.Ret);

            MethodBuilder methodSetBuilder =
                typeBuilder.DefineMethod($"set_{name}",
                                           getSetAttr,
                                           null,
                                           new Type[] { propType });

            ILGenerator methodSetIL = methodSetBuilder.GetILGenerator();

            methodSetIL.Emit(OpCodes.Ldarg_0);
            methodSetIL.Emit(OpCodes.Ldarg_1);
            methodSetIL.Emit(OpCodes.Stfld, fieldBuider);
            methodSetIL.Emit(OpCodes.Ret);

            propertyBuilder.SetGetMethod(methodGetBuilder);
            propertyBuilder.SetSetMethod(methodSetBuilder);

        }

        public class ClassDescriptorKeyValue
        {
            public ClassDescriptorKeyValue(string name, Type type, Func<PersonalData, object> valueGetter)
            {
                Name = name;
                ValueGetter = valueGetter;
                Type = type;
            }

            public string Name;
            public Type Type;
            public Func<PersonalData, object> ValueGetter;
        }

        ///
        ///Your Custom class description based on any source class for example
        /// PersonalData
        public static IEnumerable<ClassDescriptorKeyValue> GetAnonymousClassDescription(bool includeAddress, bool includeFacebook)
        {
            yield return new ClassDescriptorKeyValue("Id", typeof(string), x => x.Id);
            yield return new ClassDescriptorKeyValue("Name", typeof(string), x => x.FirstName);
            yield return new ClassDescriptorKeyValue("Surname", typeof(string), x => x.LastName);
            yield return new ClassDescriptorKeyValue("Country", typeof(string), x => x.Country);
            yield return new ClassDescriptorKeyValue("Age", typeof(int?), x => x.Age);
            yield return new ClassDescriptorKeyValue("IsChild", typeof(bool), x => x.Age < 21);

            if (includeAddress)
                yield return new ClassDescriptorKeyValue("Address", typeof(string), x => x?.Contacts["Address"]);
            if (includeFacebook)
                yield return new ClassDescriptorKeyValue("Facebook", typeof(string), x => x?.Contacts["Facebook"]);
        }

        ///
        ///Source Data Class for example
        /// of cause you can use any other class
        public class PersonalData
        { 
            public int Id { get; set; }
            public string FirstName { get; set; }
            public string LastName { get; set; }
            public string Country { get; set; }
            public int Age { get; set; }

            public Dictionary<string, string> Contacts { get; set; }
        }

    }
}

It is also very simple to use DynamicTypeBuilder, you just need put few lines like this:

    public class ExampleOfUse
    {
        private readonly bool includeAddress;
        private readonly bool includeFacebook;
        private readonly dynamic dynamicType;
        private readonly List<ClassDescriptorKeyValue> classDiscriptionList;
        public ExampleOfUse(bool includeAddress = false, bool includeFacebook = false)
        {
            this.includeAddress = includeAddress;
            this.includeFacebook = includeFacebook;
            this.classDiscriptionList = DynamicTypeBuilderTest.GetAnonymousClassDescription(includeAddress, includeFacebook).ToList();
            this.dynamicType = DynamicTypeBuilderTest.CreateAnonymousDynamicType("VeryPrivateData", this.classDiscriptionList);
        }

        public object Map(PersonalData privateInfo)
        {
            object dynamicObject = DynamicTypeBuilderTest.CreateAnonymousDynamicInstance(privateInfo, this.dynamicType, classDiscriptionList);

            return dynamicObject;
        }

    }

I hope that this code snippet help somebody =) Enjoy!

Ps 2: As pointed out by Justin, check out Facebook's new Share Dialog. Will leave the answer as is for posterity. This answer is obsolete

Short answer, yes there's a similar option for Facebook, that doesn't require javascript (well, there's some minimal inline JS that is not compulsory, see note).

Ps: The onclick part only helps you customise the popup a little bit but is not required for the code to work ... it will work just fine without it.

Facebook

<a href="https://www.facebook.com/sharer/sharer.php?u=URLENCODED_URL&t=TITLE"
   onclick="javascript:window.open(this.href, '', 'menubar=no,toolbar=no,resizable=yes,scrollbars=yes,height=300,width=600');return false;"
   target="_blank" title="Share on Facebook">
</a>

Twitter

<a href="https://twitter.com/share?url=URLENCODED_URL&via=TWITTER_HANDLE&text=TEXT"
   onclick="javascript:window.open(this.href, '', 'menubar=no,toolbar=no,resizable=yes,scrollbars=yes,height=300,width=600');return false;"
   target="_blank" title="Share on Twitter">
</a>

This is what you should do. It should work in that you have a 1 second animation, then a 4 second delay between iterations:

@keyframes barshine {
  0% {
  background-image:linear-gradient(120deg,rgba(255,255,255,0) 0%,rgba(255,255,255,0.25) -5%,rgba(255,255,255,0) 0%);
  }
  20% {
    background-image:linear-gradient(120deg,rgba(255,255,255,0) 10%,rgba(255,255,255,0.25) 105%,rgba(255,255,255,0) 110%);
  }
}
.progbar {
  animation: barshine 5s 0s linear infinite;
}

So I've been messing around with this a lot and you can do it without being very hacky. This is the simplest way to put in a delay between animation iterations that's 1. SUPER EASY and 2. just takes a little logic. Check out this dance animation I've made:

.dance{
  animation-name: dance;
  -webkit-animation-name: dance;

  animation-iteration-count: infinite;
  -webkit-animation-iteration-count: infinite;
  animation-duration: 2.5s;
  -webkit-animation-duration: 2.5s;

  -webkit-animation-delay: 2.5s;
  animation-delay: 2.5s;
  animation-timing-function: ease-in;
  -webkit-animation-timing-function: ease-in;

}
@keyframes dance {
  0% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  25% {
    -webkit-transform: rotate(-120deg);
    -moz-transform: rotate(-120deg);
    -o-transform: rotate(-120deg);
    -ms-transform: rotate(-120deg);
    transform: rotate(-120deg);
  }
  50% {
    -webkit-transform: rotate(20deg);
    -moz-transform: rotate(20deg);
    -o-transform: rotate(20deg);
    -ms-transform: rotate(20deg);
    transform: rotate(20deg);
  }
  100% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}

@-webkit-keyframes dance {
  0% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  20% {
    -webkit-transform: rotate(20deg);
    -moz-transform: rotate(20deg);
    -o-transform: rotate(20deg);
    -ms-transform: rotate(20deg);
    transform: rotate(20deg);
  }
  40% {
    -webkit-transform: rotate(-120deg);
    -moz-transform: rotate(-120deg);
    -o-transform: rotate(-120deg);
    -ms-transform: rotate(-120deg);
    transform: rotate(-120deg);
  }
  60% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  80% {
    -webkit-transform: rotate(-120deg);
    -moz-transform: rotate(-120deg);
    -o-transform: rotate(-120deg);
    -ms-transform: rotate(-120deg);
    transform: rotate(-120deg);
  }
  95% {
    -webkit-transform: rotate(20deg);
    -moz-transform: rotate(20deg);
    -o-transform: rotate(20deg);
    -ms-transform: rotate(20deg);
    transform: rotate(20deg);
  }
}

I actually came here trying to figure out how to put a delay in the animation, when I realized that you just 1. extend the duration of the animation and shirt the proportion of time for each animation. Beore I had them each lasting .5 seconds for the total duration of 2.5 seconds. Now lets say i wanted to add a delay equal to the total duration, so a 2.5 second delay.

You animation time is 2.5 seconds and delay is 2.5, so you change duration to 5 seconds. However, because you doubled the total duration, you'll want to halve the animations proportion. Check the final below. This worked perfectly for me.

@-webkit-keyframes dance {
  0% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  10% {
    -webkit-transform: rotate(20deg);
    -moz-transform: rotate(20deg);
    -o-transform: rotate(20deg);
    -ms-transform: rotate(20deg);
    transform: rotate(20deg);
  }
  20% {
    -webkit-transform: rotate(-120deg);
    -moz-transform: rotate(-120deg);
    -o-transform: rotate(-120deg);
    -ms-transform: rotate(-120deg);
    transform: rotate(-120deg);
  }
  30% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  40% {
    -webkit-transform: rotate(-120deg);
    -moz-transform: rotate(-120deg);
    -o-transform: rotate(-120deg);
    -ms-transform: rotate(-120deg);
    transform: rotate(-120deg);
  }
  50% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}

In sum:

These are the calcultions you'd probably use to figure out how to change you animation's duration and the % of each part.

desired_duration = x

desired_duration = animation_part_duration1 + animation_part_duration2 + ... (and so on)

desired_delay = y

total duration = x + y

animation_part_duration1_actual = animation_part_duration1 * desired_duration / total_duration

This is as pythonic as you can get:

for lat, long in zip(Latitudes, Longitudes):
    print(lat, long)

Using a filter works for me in C#.

string s = "searchTerm";
    var filter = Builders<Model>.Filter.Where(p => p.Title.ToLower().Contains(s.ToLower()));
                var listSorted = collection.Find(filter).ToList();
                var list = collection.Find(filter).ToList();

It may even use the index because I believe the methods are called after the return happens but I haven't tested this out yet.

This also avoids a problem of

var filter = Builders<Model>.Filter.Eq(p => p.Title.ToLower(), s.ToLower());

that mongodb will think p.Title.ToLower() is a property and won't map properly.

<script src="myjs.js"></script>
</body>

script tag should be use always before body close or Bottom in HTML file.

Page will load with html and css and later js will load.

check this if require : http://stevesouders.com/hpws/rule-js-bottom.php

Instead of using HTML entities like   and   (as others have suggested), you can use the Unicode em space (8195 in UTF-8) directly. Try copy-pasting the following into your README.md. The spaces at the start of the lines are em spaces.

The action of every agent <br />
  into the world <br />
starts <br />
  from their physical selves. <br />

The parameters: ustring: the superset string countChar: the substring

A function to count substring occurrence in JavaScript:

function subStringCount(ustring, countChar){
  var correspCount = 0;
  var corresp = false;
  var amount = 0;
  var prevChar = null;
  
 for(var i=0; i!=ustring.length; i++){

     if(ustring.charAt(i) == countChar.charAt(0) && corresp == false){
       corresp = true;
       correspCount += 1;
       if(correspCount == countChar.length){
         amount+=1;
         corresp = false;
         correspCount = 0;
       }
       prevChar = 1;
     }
     else if(ustring.charAt(i) == countChar.charAt(prevChar) && corresp == true){
       correspCount += 1;
       if(correspCount == countChar.length){
         amount+=1;
         corresp = false;
         correspCount = 0;
         prevChar = null;
       }else{
         prevChar += 1 ;
       }
     }else{
       corresp = false;
       correspCount = 0;
     }
 } 
 return amount;
}

console.log(subStringCount('Hello World, Hello World', 'll'));

Your .htaccess should run just fine; it depends on four different Apache modules (one per each <IfModule> directive). I guess one of the following:

• your Apache server doesn't have either mod_filter, mod_deflate, mod_headers and/or mod_setenvif modules installed and running. If you can access the server config, please check /etc/apache2/httpd.conf (and the related Apache config files); otherwise, you can see which modules are loaded via phpinfo(), under the apache2handler section (see attached image); (EDIT) OR, you can open a terminal window and issue the command sudo apachectl -M that will list the loaded modules;

• if you get an http 500 internal server error, your server may not be allowed to use .htaccess files;

• you are trying to load a PHP file that sends its own headers (overwriting Apache'sheaders), thus "confusing" the browser.

In any case, you should double-check your server config and error logs to see what's going wrong. Just to be sure, try to use the fastest way suggested here in Apache docs:

AddOutputFilterByType DEFLATE text/html text/plain text/xml

and then try to load a large textfile (preferably, clean your cache first).

(EDIT) If the needed modules are there (in the Apache modules dir) but aren't loaded, just edit /etc/apache2/httpd.conf and add a LoadModule directive for each one of them.

If the needed modules aren't there (neither loaded, nor in the Apache modules directory), I fear that the only option is reinstalling Apache (a complete version).

The solution is very simple, but took me about 2 hours and half the hair on my head to find it.

Simply wrap your content with a (redundant) div that has display: none and Bob is your uncle.

<div style="display: none">
    <div id="content-div">Some content here</div>
</div>

Voila

So you can just revert the file that you deleted but remember, If you are working on any type of project with a set project file (like iOS), reverting the file will add it to your system folder structure but not your project file structure. additional steps may be required if you are in this case

I have had the same issue in Ubuntu 14.04.01 when I tried to install JDK 8 and Netbeans if I launch the script inside a Byobu terminal (maybe with Screens happens the same).

Just exit Byobu and (in a graphical terminal) run the script.

$_SERVER['SERVER_NAME'] is based on your web servers configuration. $_SERVER['HTTP_HOST'] is based on the request from the client.

To declare a global variable you need do use global object. Like global.yourVariableName. But it is not a true way. To share variables between modules try to use injection style like

someModule.js:

module.exports = function(injectedVariable) {
    return {
        somePublicMethod: function() {
        },
        anotherPublicMethod: function() {
        },
    };
};

app.js

var someModule = require('./someModule')(someSharedVariable);

Or you may use surrogate object to do that. Like hub.

someModule.js:

var hub = require('hub');

module.somePublicMethod = function() {
    // We can use hub.db here
};

module.anotherPublicMethod = function() {
};

app.js

var hub = require('hub');
hub.db = dbConnection;
var someModule = require('./someModule');

To control the background-color of the scrollbar, you need to target the primary element, instead of -track.

::-webkit-scrollbar {
    background-color: blue;
}

::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
}

I haven't succeeded in rendering it transparent, but I did manage to set its color.

Since this is limited to webkit, it is still preferable to use JS with a polyfill: CSS customized scroll bar in div

All above answers perfectly gives the solution to center the form using Bootstrap 4. However, if someone wants to use out of the box Bootstrap 4 css classes without help of any additional styles and also not wanting to use flex, we can do like this.

A sample form

HTML

<div class="container-fluid h-100 bg-light text-dark">
  <div class="row justify-content-center align-items-center">
    <h1>Form</h1>    
  </div>
  <hr/>
  <div class="row justify-content-center align-items-center h-100">
    <div class="col col-sm-6 col-md-6 col-lg-4 col-xl-3">
      <form action="">
        <div class="form-group">
          <select class="form-control">
                    <option>Option 1</option>
                    <option>Option 2</option>
                  </select>
        </div>
        <div class="form-group">
          <input type="text" class="form-control" />
        </div>
        <div class="form-group text-center">
          <div class="form-check-inline">
            <label class="form-check-label">
    <input type="radio" class="form-check-input" name="optradio">Option 1
  </label>
          </div>
          <div class="form-check-inline">
            <label class="form-check-label">
    <input type="radio" class="form-check-input" name="optradio">Option 2
  </label>
          </div>
          <div class="form-check-inline">
            <label class="form-check-label">
    <input type="radio" class="form-check-input" name="optradio" disabled>Option 3
  </label>
          </div>
        </div>
        <div class="form-group">
          <div class="container">
            <div class="row">
              <div class="col"><button class="col-6 btn btn-secondary btn-sm float-left">Reset</button></div>
              <div class="col"><button class="col-6 btn btn-primary btn-sm float-right">Submit</button></div>
            </div>
          </div>
        </div>

      </form>
    </div>
  </div>
</div>

Link to CodePen

https://codepen.io/anjanasilva/pen/WgLaGZ

I hope this helps someone. Thank you.

Here's my solution using URL and try with resources phrase to catch the exceptions.

/**
 * Created by mona on 5/27/16.
 */
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
public class ReadFromWeb {
    public static void readFromWeb(String webURL) throws IOException {
        URL url = new URL(webURL);
        InputStream is =  url.openStream();
        try( BufferedReader br = new BufferedReader(new InputStreamReader(is))) {
            String line;
            while ((line = br.readLine()) != null) {
                System.out.println(line);
            }
        }
        catch (MalformedURLException e) {
            e.printStackTrace();
            throw new MalformedURLException("URL is malformed!!");
        }
        catch (IOException e) {
            e.printStackTrace();
            throw new IOException();
        }

    }
    public static void main(String[] args) throws IOException {
        String url = "https://madison.craigslist.org/search/sub";
        readFromWeb(url);
    }

}

You could additionally save it to file based on your needs or parse it using XML or HTML libraries.

You should've kept that DOM ready function

$(function() {
    $("#projectKey").change(function() {
        alert( $('option:selected', this).text() );
    });
});

The document isn't ready if you added the javascript before the elements in the DOM, you have to either use a DOM ready function or add the javascript after the elements, the usual place is right before the </body> tag

Another option using Xpath.

library(RCurl)
library(XML)

theurl <- "http://en.wikipedia.org/wiki/Brazil_national_football_team"
webpage <- getURL(theurl)
webpage <- readLines(tc <- textConnection(webpage)); close(tc)

pagetree <- htmlTreeParse(webpage, error=function(...){}, useInternalNodes = TRUE)

# Extract table header and contents
tablehead <- xpathSApply(pagetree, "//*/table[@class='wikitable sortable']/tr/th", xmlValue)
results <- xpathSApply(pagetree, "//*/table[@class='wikitable sortable']/tr/td", xmlValue)

# Convert character vector to dataframe
content <- as.data.frame(matrix(results, ncol = 8, byrow = TRUE))

# Clean up the results
content[,1] <- gsub(" ", "", content[,1])
tablehead <- gsub(" ", "", tablehead)
names(content) <- tablehead

Produces this result

> head(content)
   Opponent Played Won Drawn Lost Goals for Goals against % Won
1 Argentina     94  36    24   34       148           150 38.3%
2  Paraguay     72  44    17   11       160            61 61.1%
3   Uruguay     72  33    19   20       127            93 45.8%
4     Chile     64  45    12    7       147            53 70.3%
5      Peru     39  27     9    3        83            27 69.2%
6    Mexico     36  21     6    9        69            34 58.3%

What I do is something just a little bit different from @Chase answer:

var employees = {};

// ...and then:
employees.accounting = new Array();

for (var i = 0; i < someArray.length; i++) {
    var temp_item = someArray[i];

    // Maybe, here make something like:
    // temp_item.name = 'some value'

    employees.accounting.push({
        "firstName" : temp_item.firstName,
        "lastName"  : temp_item.lastName,
        "age"       : temp_item.age
    });
}

And that work form me!

I hope it could be useful for some body else!

1. Try to check it once more according to this tutorial: http://vietpad.sourceforge.net/javaonwindows.html

2. Try to reboot your system.

3. If nothing, try to run "cmd" and type there "java", does it print anything?

The previous answers did not work for me, so I decided to improve this.

You should work with url(''), and not with value.

<li *ngFor="let item of items">
  <div
    class="img-wrapper"
    [ngStyle]="{'background-image': !item.featured ? 'url(\'images/img1.png\')' : 'url(\'images/img2.png\')'}">
  </div>
</li>

I will do something like this:

List<String> order = List.of("Red", "Green", "Magenta", "Silver");

Comparator.comparing(Car::getColor(), Comparator.comparingInt(c -> order.indexOf(c)))

All credits go to @Sean Patrick Floyd :)

In C++ you can overload operator<< for ostream and your custom class:

class A {
public:
  int i;
};

std::ostream& operator<<(std::ostream &strm, const A &a) {
  return strm << "A(" << a.i << ")";
}

This way you can output instances of your class on streams:

A x = ...;
std::cout << x << std::endl;

In case your operator<< wants to print out internals of class A and really needs access to its private and protected members you could also declare it as a friend function:

class A {
private:
  friend std::ostream& operator<<(std::ostream&, const A&);
  int j;
};

std::ostream& operator<<(std::ostream &strm, const A &a) {
  return strm << "A(" << a.j << ")";
}

^(?!filename).+\.js works for me

tested against:

• test.js match
• blabla.js match
• filename.js no match

A proper explanation for this regex can be found at Regular expression to match string not containing a word?

Look ahead is available since version 1.5 of javascript and is supported by all major browsers

Updated to match filename2.js and 2filename.js but not filename.js

(^(?!filename\.js$).).+\.js

One case is when you are trying to unit test code that uses WeakReference.

You append a newline to both the username and the password, i.e. the output would be something like

Sebastian
password
John
hfsjaijn

use fwrite($fh,$user." ".$password."\n"); instead to have them both on one line.
Or use fputcsv() to write the data and fgetcsv() to fetch it. This way you would at least avoid encoding problems like e.g. with $username='Charles, III';

...i.e. setting aside all the things that are wrong about storing plain passwords in plain files and using _GET for this type of operation (use _POST instead) ;-)

Array elements value should be less than the array length for this one:

public void findCounts(int[] arr, int n) {
    int i = 0;

    while (i < n) {
        if (arr[i] <= 0) {
            i++;
            continue;
        }

        int elementIndex = arr[i] - 1;

        if (arr[elementIndex] > 0) {
            arr[i] = arr[elementIndex];
            arr[elementIndex] = -1;
        }
        else {
            arr[elementIndex]--;
            arr[i] = 0;
            i++;
        }
    }

    Console.WriteLine("Below are counts of all elements");

    for (int j = 0; j < n; j++) {
        Console.WriteLine(j + 1 + "->" + Math.Abs(arr[j]));
    }
}

Time complexity of this will be O(N) and space complexity will be O(1).

There's no NotifyIcon for WPF.

A colleague of mine used this freely available library to good effect:

• http://www.hardcodet.net/wpf-notifyicon (blog post)
• https://bitbucket.org/hardcodet/notifyicon-wpf/src (source code)
• https://www.nuget.org/packages/Hardcodet.NotifyIcon.Wpf/ (NuGet package)
• http://visualstudiogallery.msdn.microsoft.com/aacbc77c-4ef6-456f-80b7-1f157c2909f7/

netstat -p -l | grep $PORT and lsof -i :$PORT solutions are good but I prefer fuser $PORT/tcp extension syntax to POSIX (which work for coreutils) as with pipe:

pid=`fuser $PORT/tcp`

it prints pure pid so you can drop sed magic out.

One thing that makes fuser my lover tools is ability to send signal to that process directly (this syntax is also extension to POSIX):

$ fuser -k $port/tcp       # with SIGKILL
$ fuser -k -15 $port/tcp   # with SIGTERM
$ fuser -k -TERM $port/tcp # with SIGTERM

Also -k is supported by FreeBSD: http://www.freebsd.org/cgi/man.cgi?query=fuser

You can use a shortcur, like this one:

noremap <F6> :%y+<CR>

It means, when you push F6 in normald mode, it will copy the whole file, and add it to the clipboard. Or you just can type in normal mode :%y+ and then push Enter.

import { combineReducers } from '../../store/reducers';

should be

import combineReducers from '../../store/reducers';

since it's a default export, and not a named export.

There's a good breakdown of the differences between the two here.

Whitespace just means characters which are used for spacing, and have an "empty" representation. In the context of python, it means tabs and spaces (it probably also includes exotic unicode spaces, but don't use them). The definitive reference is here: http://docs.python.org/2/reference/lexical_analysis.html#indentation

I'm not sure exactly how to use it.

Put it at the front of the line you want to indent. If you mix spaces and tabs, you'll likely see funky results, so stick with one or the other. (The python community usually follows PEP8 style, which prescribes indentation of four spaces).

You need to create a new indent level after each colon:

for x in range(0, 50):
    print x
    print 2*x

print x

In this code, the first two print statements are "inside" the body of the for statement because they are indented more than the line containing the for. The third print is outside because it is indented less than the previous (nonblank) line.

If you don't indent/unindent consistently, you will get indentation errors. In addition, all compound statements (i.e. those with a colon) can have the body supplied on the same line, so no indentation is required, but the body must be composed of a single statement.

Finally, certain statements, like lambda feature a colon, but cannot have a multiline block as the body.

For my part, and without any plug-in, simply saving the file either from the File menu or with keyboards shortcuts

CTRL + S (Windows, Linux) or CMD + S (Mac OS)

briefly displays the current encoding - between parentheses - in the status bar, at the bottom of the editor's window. This suggestion works in Sublime Text 2 and 3.

Note that the displayed encoding to the right in the status bar of Sublime Text 3, may display the wrong encoding of the file if you have attempted to save the file with an encoding that can't represent all the characters in your file. In this case you would have seen an informational dialog and Sublime telling you it's falling back to UTF-8. This may not be the case, so be careful.

A more concise, elegant, and secure answer: add “?enablejsapi=1” to the end of the video URL, then construct and stringify an ordinary object representing the pause command:

const YouTube_pause_video_command_JSON = JSON.stringify(Object.create(null, {
    "event": {
        "value": "command",
        "enumerable": true
    },
    "func": {
        "value": "pauseVideo",
        "enumerable": true
    }
}));

Use the Window.postMessage method to send the resulting JSON string to the embedded video document:

// |iframe_element| is defined elsewhere.
const video_URL = iframe_element.getAttributeNS(null, "src");
iframe_element.contentWindow.postMessage(YouTube_pause_video_command_JSON, video_URL);

Make sure you specify the video URL for the Window.postMessage method’s targetOrigin argument to ensure that your messages won’t be sent to any unintended recipient.

To remove all child elements from your div:

$('#mysweetdiv').empty();

.removeData() and the corresponding .data() function are used to attach data behind an element, say if you wanted to note that a specific list element referred to user ID 25 in your database:

var $li = $('<li>Joe</li>').data('id', 25);

cq.select(cb.construct(entityClazz.class, root.get("ID"), root.get("VERSION")));  // HERE IS NO ERROR

https://wiki.eclipse.org/EclipseLink/UserGuide/JPA/Basic_JPA_Development/Querying/Criteria#Constructors

First get the pid:

ps ax | grep [process name]

And then:

top -p PID

You can watch various processes in the same time:

top -p PID1 -p PID2 

Here is an answer proposal:

http://www.greenvilleweb.us/how-to-web-design/problem-with-ie-9-caching-ajax-get-request/

The idea is to add a parameter to your ajax query containing for example the current date an time, so the browser will not be able to cache it.

Have a look on the link, it is well explained.

Or like this:

Code::whereNotIn('to_be_used_by_user_id', [2])->get();

The only effective mechanism for passing parameters into a build is to use Java properties:

ant -Done=1 -Dtwo=2

The following example demonstrates how you can check and ensure the expected parameters have been passed into the script

<project name="check" default="build">

    <condition property="params.set">
        <and>
            <isset property="one"/>
            <isset property="two"/>
        </and>
    </condition>

    <target name="check">
        <fail unless="params.set">
        Must specify the parameters: one, two
        </fail>
    </target>

    <target name="build" depends="check">
        <echo>
        one = ${one}
        two = ${two}
        </echo>
    </target>

</project>

Simplest solution. For both Radio and Checkboxes.

$('body').on('click', 'input[type="checkbox"]', function(){
    if ($(this).attr('checked')){
        $( this ).attr( 'checked', false);
    } else {
        $( this ).attr( 'checked', true);
    }
});
$('body').on('click', 'input[type="radio"]', function(){
    var name = $(this).attr('name');
    $("input[name="+name+"]:radio").attr('checked', false);
    $( this ).attr( 'checked', true);
});

I case of tomcat 7 the role has changed from manager to manager-gui so set it as below in the tomcat-user.xml file.

For anybody else having issues with storyboard crashes after copying your project, head over to Main.storyboard under Identity Inspector.

Next, check that your current module is the correct renamed module and not the old one.

In python, A dynamic array is an 'array' from the array module. E.g.

from array import array
x = array('d')          #'d' denotes an array of type double
x.append(1.1)
x.append(2.2)
x.pop()                 # returns 2.2

This datatype is essentially a cross between the built-in 'list' type and the numpy 'ndarray' type. Like an ndarray, elements in arrays are C types, specified at initialization. They are not pointers to python objects; this may help avoid some misuse and semantic errors, and modestly improves performance.

However, this datatype has essentially the same methods as a python list, barring a few string & file conversion methods. It lacks all the extra numerical functionality of an ndarray.

See https://docs.python.org/2/library/array.html for details.

Use the rand function:

http://www.cplusplus.com/reference/clibrary/cstdlib/rand/

Quote:

A typical way to generate pseudo-random numbers in a determined range using rand is to use the modulo of the returned value by the range span and add the initial value of the range:

( value % 100 ) is in the range 0 to 99
( value % 100 + 1 ) is in the range 1 to 100
( value % 30 + 1985 ) is in the range 1985 to 2014

\d is a digit (a character in the range 0-9), and + means 1 or more times. So, \d+ is 1 or more digits.

This is about as simple as regular expressions get. You should try reading up on regular expressions a little bit more. Google has a lot of results for regular expression tutorial, for instance. Or you could try using a tool like the free Regex Coach that will let you enter a regular expression and sample text, then indicate what (if anything) matches the regex.

This isn't a direct answer but may provide a more efficient alternative for your consideration. Which is that Google Sheets has several built in Regex Functions these can be very convenient and help circumvent some of the technical procedures in Excel. Obviously there are some advantages to using Excel on your PC but for the large majority of users Google Sheets will offer an identical experience and may offer some benefits in portability and sharing of documents.

They offer

REGEXEXTRACT: Extracts matching substrings according to a regular expression.

REGEXREPLACE: Replaces part of a text string with a different text string using regular expressions.

SUBSTITUTE: Replaces existing text with new text in a string.

REPLACE: Replaces part of a text string with a different text string.

You can type these directly into a cell like so and will produce whatever you'd like

=REGEXMATCH(A2, "[0-9]+")

They also work quite well in combinations with other functions such as IF statements like so:

=IF(REGEXMATCH(E8,"MiB"),REGEXEXTRACT(E8,"\d*\.\d*|\d*")/1000,IF(REGEXMATCH(E8,"GiB"),REGEXEXTRACT(E8,"\d*\.\d*|\d*"),"")

Hopefully this provides a simple workaround for users who feel taunted by the VBS component of Excel.

A today extension would be the most fitting solution.

Also you could do something on the lock screen with local notifications queued up to fire at regular intervals showing the latest countdown value.

Updating lines in place in a file is not supported on most file system (a line in a file is just some data that ends with newline, the next line start just after that).

As I see it you have two options:

1. Have your data generating loops be generators, this way they won't consume a lot of memory - you'll get data for each row "just in time"
2. Use a database (sqlite?) and update the rows there. When you're done - export to CSV

Small example for the first method:

from itertools import islice, izip, count
print list(islice(izip(count(1), count(2), count(3)), 10))

This will print

[(1, 2, 3), (2, 3, 4), (3, 4, 5), (4, 5, 6), (5, 6, 7), (6, 7, 8), (7, 8, 9), (8, 9, 10), (9, 10, 11), (10, 11, 12)]

even though count generate an infinite sequence of numbers

Personally:

for _ in range(50):
    print "Some thing"

if you don't need i. If you use Python < 3 and you want to repeat the loop a lot of times, use xrange as there is no need to generate the whole list beforehand.

You can also use this approach in case you want to pass some http parameters and send a json request:

(note: I have added in some extra code just incase it helps any other future readers)

public void postJsonWithHttpParams() throws URISyntaxException, UnsupportedEncodingException, IOException {

    //add the http parameters you wish to pass
    List<NameValuePair> postParameters = new ArrayList<>();
    postParameters.add(new BasicNameValuePair("param1", "param1_value"));
    postParameters.add(new BasicNameValuePair("param2", "param2_value"));

    //Build the server URI together with the parameters you wish to pass
    URIBuilder uriBuilder = new URIBuilder("http://google.ug");
    uriBuilder.addParameters(postParameters);

    HttpPost postRequest = new HttpPost(uriBuilder.build());
    postRequest.setHeader("Content-Type", "application/json");

    //this is your JSON string you are sending as a request
    String yourJsonString = "{\"str1\":\"a value\",\"str2\":\"another value\"} ";

    //pass the json string request in the entity
    HttpEntity entity = new ByteArrayEntity(yourJsonString.getBytes("UTF-8"));
    postRequest.setEntity(entity);

    //create a socketfactory in order to use an http connection manager
    PlainConnectionSocketFactory plainSocketFactory = PlainConnectionSocketFactory.getSocketFactory();
    Registry<ConnectionSocketFactory> connSocketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
            .register("http", plainSocketFactory)
            .build();

    PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager(connSocketFactoryRegistry);

    connManager.setMaxTotal(20);
    connManager.setDefaultMaxPerRoute(20);

    RequestConfig defaultRequestConfig = RequestConfig.custom()
            .setSocketTimeout(HttpClientPool.connTimeout)
            .setConnectTimeout(HttpClientPool.connTimeout)
            .setConnectionRequestTimeout(HttpClientPool.readTimeout)
            .build();

    // Build the http client.
    CloseableHttpClient httpclient = HttpClients.custom()
            .setConnectionManager(connManager)
            .setDefaultRequestConfig(defaultRequestConfig)
            .build();

    CloseableHttpResponse response = httpclient.execute(postRequest);

    //Read the response
    String responseString = "";

    int statusCode = response.getStatusLine().getStatusCode();
    String message = response.getStatusLine().getReasonPhrase();

    HttpEntity responseHttpEntity = response.getEntity();

    InputStream content = responseHttpEntity.getContent();

    BufferedReader buffer = new BufferedReader(new InputStreamReader(content));
    String line;

    while ((line = buffer.readLine()) != null) {
        responseString += line;
    }

    //release all resources held by the responseHttpEntity
    EntityUtils.consume(responseHttpEntity);

    //close the stream
    response.close();

    // Close the connection manager.
    connManager.close();
}

If you need to conditionally apply inline styles (apply all or nothing) then this notation also works:

style={ someCondition ? { textAlign:'center', paddingTop: '50%'} : {}}

In case 'someCondition' not fulfilled then you pass empty object.

Personally I love this new way in Spring 3.0 from the docs:

private @Value("${propertyName}") String propertyField;

No getters or setters!

With the properties being loaded via the config:

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
      p:location="classpath:propertyFile.properties" name="propertiesBean"/>

To further my glee I can even control click on the EL expression in IntelliJ and it brings me to the property definition!

There's also the totally non xml version:

@PropertySource("classpath:propertyFile.properties")
public class AppConfig {

    @Bean
    public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
        return new PropertySourcesPlaceholderConfigurer();
    }

Just in case you are able to utilize a scripting language to prepare your SQL queries, you could reuse field=value pairs by using SET instead of (a,b,c) VALUES(a,b,c).

An example with PHP:

$pairs = "a=$a,b=$b,c=$c";
$query = "INSERT INTO $table SET $pairs ON DUPLICATE KEY UPDATE $pairs";

Example table:

CREATE TABLE IF NOT EXISTS `tester` (
  `a` int(11) NOT NULL,
  `b` varchar(50) NOT NULL,
  `c` text NOT NULL,
  UNIQUE KEY `a` (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

if you want to have your port as a variable, you can write php like this:

$username = user;
$password = pw;
$host = 127.0.0.1;
$database = dbname;
$port = 3308; 

$conn = mysql_connect($host.':'.$port, $username, $password);
$db=mysql_select_db($database,$conn);

Working with predicate for pretty long time. Here is my conclusion (SWIFT)

//Customizable! (for me was just important if at least one)
request.fetchLimit = 1


//IF IS EQUAL

//1 OBJECT
request.predicate = NSPredicate(format: "name = %@", txtFieldName.text)

//ARRAY
request.predicate = NSPredicate(format: "name = %@ AND nickName = %@", argumentArray: [name, nickname])


// IF CONTAINS

//1 OBJECT
request.predicate = NSPredicate(format: "name contains[c] %@", txtFieldName.text)

//ARRAY
request.predicate = NSPredicate(format: "name contains[c] %@ AND nickName contains[c] %@", argumentArray: [name, nickname])

I'm guessing

x= data[:,0]
y= data[:,1]

You can't: It's a security feature in all modern browsers.

For IE8, it's off by default, but can be reactivated using a security setting:

When a file is selected by using the input type=file object, the value of the value property depends on the value of the "Include local directory path when uploading files to a server" security setting for the security zone used to display the Web page containing the input object.

The fully qualified filename of the selected file is returned only when this setting is enabled. When the setting is disabled, Internet Explorer 8 replaces the local drive and directory path with the string C:\fakepath\ in order to prevent inappropriate information disclosure.

In all other current mainstream browsers I know of, it is also turned off. The file name is the best you can get.

More detailed info and good links in this question. It refers to getting the value server-side, but the issue is the same in JavaScript before the form's submission.

"Ambiguous column" usually means that the same column name appears in at least two tables; the database engine can't tell which one you want. Use full table names or table aliases to remove the ambiguity.

Here's an example I happened to have in my editor. It's from someone else's problem, but should make sense anyway.

select P.* 
from product_has_image P
inner join highest_priority_images H 
        on (H.id_product = P.id_product and H.priority = p.priority)

Try Winhttrack

...offline browser utility.

It allows you to download a World Wide Web site from the Internet to a local directory, building recursively all directories, getting HTML, images, and other files from the server to your computer. HTTrack arranges the original site's relative link-structure. Simply open a page of the "mirrored" website in your browser, and you can browse the site from link to link, as if you were viewing it online. HTTrack can also update an existing mirrored site, and resume interrupted downloads. HTTrack is fully configurable, and has an integrated help system.

WinHTTrack is the Windows 2000/XP/Vista/Seven release of HTTrack, and WebHTTrack the Linux/Unix/BSD release...

Here you have an example styling checkboxes and radios using Font Awesome 5 free[

  /*General style*/_x000D_
  .custom-checkbox label, .custom-radio label {_x000D_
    position: relative;_x000D_
    cursor: pointer;_x000D_
    color: #666;_x000D_
    font-size: 30px;_x000D_
  }_x000D_
 .custom-checkbox input[type="checkbox"] ,.custom-radio input[type="radio"] {_x000D_
    position: absolute;_x000D_
    right: 9000px;_x000D_
  }_x000D_
   /*Custom checkboxes style*/_x000D_
  .custom-checkbox input[type="checkbox"]+.label-text:before {_x000D_
    content: "\f0c8";_x000D_
    font-family: "Font Awesome 5 Pro";_x000D_
    speak: none;_x000D_
    font-style: normal;_x000D_
    font-weight: normal;_x000D_
    font-variant: normal;_x000D_
    text-transform: none;_x000D_
    line-height: 1;_x000D_
    -webkit-font-smoothing: antialiased;_x000D_
    width: 1em;_x000D_
    display: inline-block;_x000D_
    margin-right: 5px;_x000D_
  }_x000D_
  .custom-checkbox input[type="checkbox"]:checked+.label-text:before {_x000D_
    content: "\f14a";_x000D_
    color: #2980b9;_x000D_
    animation: effect 250ms ease-in;_x000D_
  }_x000D_
  .custom-checkbox input[type="checkbox"]:disabled+.label-text {_x000D_
    color: #aaa;_x000D_
  }_x000D_
  .custom-checkbox input[type="checkbox"]:disabled+.label-text:before {_x000D_
    content: "\f0c8";_x000D_
    color: #ccc;_x000D_
  }_x000D_
_x000D_
   /*Custom checkboxes style*/_x000D_
  .custom-radio input[type="radio"]+.label-text:before {_x000D_
    content: "\f111";_x000D_
    font-family: "Font Awesome 5 Pro";_x000D_
    speak: none;_x000D_
    font-style: normal;_x000D_
    font-weight: normal;_x000D_
    font-variant: normal;_x000D_
    text-transform: none;_x000D_
    line-height: 1;_x000D_
    -webkit-font-smoothing: antialiased;_x000D_
    width: 1em;_x000D_
    display: inline-block;_x000D_
    margin-right: 5px;_x000D_
  }_x000D_
_x000D_
  .custom-radio input[type="radio"]:checked+.label-text:before {_x000D_
    content: "\f192";_x000D_
    color: #8e44ad;_x000D_
    animation: effect 250ms ease-in;_x000D_
  }_x000D_
_x000D_
  .custom-radio input[type="radio"]:disabled+.label-text {_x000D_
    color: #aaa;_x000D_
  }_x000D_
_x000D_
  .custom-radio input[type="radio"]:disabled+.label-text:before {_x000D_
    content: "\f111";_x000D_
    color: #ccc;_x000D_
  }_x000D_
_x000D_
  @keyframes effect {_x000D_
    0% {_x000D_
      transform: scale(0);_x000D_
    }_x000D_
    25% {_x000D_
      transform: scale(1.3);_x000D_
    }_x000D_
    75% {_x000D_
      transform: scale(1.4);_x000D_
    }_x000D_
    100% {_x000D_
      transform: scale(1);_x000D_
    }_x000D_
  }

<script src="https://kit.fontawesome.com/2a10ab39d6.js"></script>_x000D_
<div class="col-md-4">_x000D_
  <form>_x000D_
    <h2>1. Customs Checkboxes</h2>_x000D_
    <div class="custom-checkbox">_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="checkbox" name="check" checked> <span class="label-text">Option 01</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="checkbox" name="check"> <span class="label-text">Option 02</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="checkbox" name="check"> <span class="label-text">Option 03</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="checkbox" name="check" disabled> <span class="label-text">Option 04</span>_x000D_
                </label>_x000D_
      </div>_x000D_
    </div>_x000D_
  </form>_x000D_
</div>_x000D_
<div class="col-md-4">_x000D_
  <form>_x000D_
    <h2>2. Customs Radios</h2>_x000D_
    <div class="custom-radio">_x000D_
_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="radio" name="radio" checked> <span class="label-text">Option 01</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="radio" name="radio"> <span class="label-text">Option 02</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="radio" name="radio"> <span class="label-text">Option 03</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="radio" name="radio" disabled> <span class="label-text">Option 04</span>_x000D_
                </label>_x000D_
      </div>_x000D_
    </div>_x000D_
  </form>_x000D_
</div>

db.collection("collection_name").deleteOne({_id:ObjectId("4d513345cc9374271b02ec6c")})

They all need to have the same name attribute.

The radio buttons are grouped by the name attribute. Here's an example:

<fieldset>
    <legend>Please select one of the following</legend>
    <input type="radio" name="action" id="track" value="track" /><label for="track">Track Submission</label><br />
    <input type="radio" name="action" id="event" value="event"  /><label for="event">Events and Artist booking</label><br />
    <input type="radio" name="action" id="message" value="message" /><label for="message">Message us</label><br />
</fieldset>

Here is one that I have been using: -

[<1000000]0.00," KB";[<1000000000]0.00,," MB";0.00,,," GB"

Seems to work fine.

Basically you need following things to make location detector android app

• Location Listener, which detect current location
• Marker to add and animate when person moves
• Polyline to add path on person's movement
• Services for sending and receiving location
• Rest API / Firebase Realtime Database to store and fetch locations

Now if you write each of these module yourself then it needs much time and efforts. So it would be better to use ready resources that are being maintained already.

Using all these resources, you will be able to create an flawless android location detection app.

1. Location Listening

You will first need to listen for current location of user. You can use any of below libraries to quick start.

Google Play Location Samples

This library provide last known location, location updates

Location Manager

With this library you just need to provide a Configuration object with your requirements, and you will receive a location or a fail reason with all the stuff are described above handled.

Live Location Sharing

Use this open source repo of the Hypertrack Live app to build live location sharing experience within your app within a few hours. HyperTrack Live app helps you share your Live Location with friends and family through your favorite messaging app when you are on the way to meet up. HyperTrack Live uses HyperTrack APIs and SDKs.

2. Markers Library

Google Maps Android API utility library

• Marker clustering — handles the display of a large number of points
• Heat maps — display a large number of points as a heat map
• IconGenerator — display text on your Markers
• Poly decoding and encoding — compact encoding for paths, interoperability with Maps API web services
• Spherical geometry — for example: computeDistance, computeHeading, computeArea
• KML — displays KML data
• GeoJSON — displays and styles GeoJSON data

3. Polyline Libraries

DrawRouteMaps

If you want to add route maps feature in your apps you can use DrawRouteMaps to make you work more easier. This is lib will help you to draw route maps between two point LatLng.

trail-android

Simple, smooth animation for route / polylines on google maps using projections. (WIP)

Google-Directions-Android

This project allows you to calculate the direction between two locations and display the route on a Google Map using the Google Directions API.

A map demo app for quick start with maps

To add to Pratik's answer, here is a modified version where user can enter min 2 digits also , for example, 15 to 100:

 import android.text.InputFilter;
 import android.text.Spanned;

public class InputFilterMinMax implements InputFilter {

    private int min, max;

    public InputFilterMinMax(int min, int max) {
        this.min = min;
        this.max = max;
    }

    public InputFilterMinMax(String min, String max) {
        this.min = Integer.parseInt(min);
        this.max = Integer.parseInt(max);
    }

    @Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

        try {
            if(end==1)
                min=Integer.parseInt(source.toString());
            int input = Integer.parseInt(dest.toString() + source.toString());
            if (isInRange(min, max, input))
                return null;
        } catch (NumberFormatException nfe) {
        }
        return "";
    }

    private boolean isInRange(int a, int b, int c) {

        return b > a ? c >= a && c <= b : c >= b && c <= a;
    }}

added: if(end==1) min=Integer.parseInt(source.toString());

Hope this helps. kindly dont downvote without reasons.

This does it:

public static void main(String[] args) {
    final String uuid = UUID.randomUUID().toString().replace("-", "");
    System.out.println("uuid = " + uuid);
}

You cannot put primitive types into collections. However, you can declare them using their corresponding object wrappers and still add the primitive values, as long as the boxing allows you.

If the src is already set then the event is firing in the cached case before you even get the event handler bound. So, you should trigger the event based off .complete also.

code sample:

$("img").one("load", function() {
   //do stuff
}).each(function() {
   if(this.complete || /*for IE 10-*/ $(this).height() > 0)
     $(this).load();
});

Don't ever use the setInterval or setTimeout functions for time measuring! They are unreliable, and it is very likely that the JS execution scheduling during a documents parsing and displaying is delayed.

Instead, use the Date object to create a timestamp when you page began loading, and calculate the difference to the time when the page has been fully loaded:

<doctype html>
<html>
    <head>
        <script type="text/javascript">
            var timerStart = Date.now();
        </script>
        <!-- do all the stuff you need to do -->
    </head>
    <body>
        <!-- put everything you need in here -->

        <script type="text/javascript">
             $(document).ready(function() {
                 console.log("Time until DOMready: ", Date.now()-timerStart);
             });
             $(window).load(function() {
                 console.log("Time until everything loaded: ", Date.now()-timerStart);
             });
        </script>
    </body>
</html>

Generally, I agree with @kgrittn's advice. Go for it.

But to address your basic question about concat(): The new function concat() is useful if you need to deal with null values - and null has neither been ruled out in your question nor in the one you refer to.

If you can rule out null values, the good old (SQL standard) concatenation operator || is still the best choice, and @luis' answer is just fine:

SELECT col_a || col_b;

If either of your columns can be null, the result would be null in that case. You could defend with COALESCE:

SELECT COALESCE(col_a, '') || COALESCE(col_b, '');

But that get tedious quickly with more arguments. That's where concat() comes in, which never returns null, not even if all arguments are null. Per documentation:

NULL arguments are ignored.

SELECT concat(col_a, col_b);

The remaining corner case for both alternatives is where all input columns are null in which case we still get an empty string '', but one might want null instead (at least I would). One possible way:

SELECT CASE
          WHEN col_a IS NULL THEN col_b
          WHEN col_b IS NULL THEN col_a
          ELSE col_a || col_b
       END;

This gets more complex with more columns quickly. Again, use concat() but add a check for the special condition:

SELECT CASE WHEN (col_a, col_b) IS NULL THEN NULL
            ELSE concat(col_a, col_b) END;

How does this work?
(col_a, col_b) is shorthand notation for a row type expression ROW (col_a, col_b). And a row type is only null if all columns are null. Detailed explanation:

• NOT NULL constraint over a set of columns

Also, use concat_ws() to add separators between elements (ws for "with separator").

An expression like the one in Kevin's answer:

SELECT $1.zipcode || ' - ' || $1.city || ', ' || $1.state;

is tedious to prepare for null values in PostgreSQL 8.3 (without concat()). One way (of many):

SELECT COALESCE(
         CASE
            WHEN $1.zipcode IS NULL THEN $1.city
            WHEN $1.city    IS NULL THEN $1.zipcode
            ELSE $1.zipcode || ' - ' || $1.city
         END, '')
       || COALESCE(', ' || $1.state, '');

Function volatility is only STABLE

concat() and concat_ws() are STABLE functions, not IMMUTABLE because they can invoke datatype output functions (like timestamptz_out) that depend on locale settings.
Explanation by Tom Lane.

This prohibits their direct use in index expressions. If you know that the result is actually immutable in your case, you can work around this with an IMMUTABLE function wrapper. Example here:

• Does PostgreSQL support "accent insensitive" collations?

This is exactly the same as

while (x--)
{
   printf("%d ", x);
}

for non-negative numbers

setSize will resize the component to the specified size.

setPreferredSize sets the preferred size. The component may not actually be this size depending on the size of the container it's in, or if the user re-sized the component manually.

This could be an error in the web.config file.

Open up your URL in your browser, example:

http://localhost:61277/Email.svc

Check if you have a 500 Error.

HTTP Error 500.19 - Internal Server Error

Look for the error in these sections:

Config Error

Config File

The accurate way is to use the __FUNCTION__ predefined magic constant.

Example:

class Test {
    function MethodA(){
        echo __FUNCTION__;
    }
}

Result: MethodA.

You had a mistake on the statement below. Use . not ,

echo '<img src="', $dir, '/', $file, '" alt="', $file, $

to

echo '<img src="'. $dir. '/'. $file. '" alt="'. $file. $

and

echo 'Directory \'', $dir, '\' not found!';

to

echo 'Directory \''. $dir. '\' not found!';

You can't have optional arguments that default to a certain value in Java. The nearest thing to what you are talking about is java varargs whereby you can pass an arbitrary number of arguments (of the same type) to a method.

Nowadays, Alpine images will boot directly into /bin/sh by default, without having to specify a shell to execute:

$ sudo docker run -it --rm alpine  
/ # echo $0  
/bin/sh  

This is since the alpine image Dockerfiles now contain a CMD command, that specifies the shell to execute when the container starts: CMD ["/bin/sh"].

In older Alpine image versions (pre-2017), the CMD command was not used, since Docker used to create an additional layer for CMD which caused the image size to increase. This is something that the Alpine image developers wanted to avoid. In recent Docker versions (1.10+), CMD no longer occupies a layer, and so it was added to alpine images. Therefore, as long as CMD is not overridden, recent Alpine images will boot into /bin/sh.

For reference, see the following commit to the official Alpine Dockerfiles by Glider Labs:
https://github.com/gliderlabs/docker-alpine/commit/ddc19dd95ceb3584ced58be0b8d7e9169d04c7a3#diff-db3dfdee92c17cf53a96578d4900cb5b

Try the below:

myNewFunction = function(id, index) {
    var selection = document.getElementById(id);
    alert(selection.options[index].innerHTML);
};

See here jsfiddle sample

You can also use OpenCV's inbuilt functions cv2.hconcat and cv2.vconcat which like their names suggest are used to join images horizontally and vertically respectively.

import cv2

img1 = cv2.imread('opencv/lena.jpg')
img2 = cv2.imread('opencv/baboon.jpg')

v_img = cv2.vconcat([img1, img2])
h_img = cv2.hconcat([img1, img2])

cv2.imshow('Horizontal', h_img)
cv2.imshow('Vertical', v_img)
cv2.waitKey(0)
cv2.destroyAllWindows()

Horizontal Concatenation

Vertical Concatenation

Using bookmarks is great way to keep your sanity if you're working with or troubleshooting a really long procedure. Let's say you're working with a derived field in an outer query and it's definition is another 200 lines down inside the inner query. You can bookmark both locations and then quickly go back and forth between the two.

Might be a little late but for new issues like this I use this code:

moment(timestamp, 'X').format('lll');

You can change the format to match your needs and also add timezone like this:

moment(timestamp, 'X').tz(timezone).format('lll');

I think you conclusions are correct but not accurate.

As the docs indicates, socket.recv is majorly focused on the network buffers.

When socket is blocking, socket.recv will return as long as the network buffers have bytes. If bytes in the network buffers are more than socket.recv can handle, it will return the maximum number of bytes it can handle. If bytes in the network buffers are less than socket.recv can handle, it will return all the bytes in the network buffers.

PsSuspend command line utility from SysInternals suite. It suspends / resumes a process by its id.

Using Jquery you can do something like this:

$(document).ready(function() {_x000D_
  $('#btnSubmit').click(function() {_x000D_
    $('#deleteFrm').submit();_x000D_
  });_x000D_
_x000D_
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<form action="" id="deleteFrm" method="POST">_x000D_
  <a id="btnSubmit">Submit</a>_x000D_
</form>

This is the bit of code you need at the top of your JavaScript file:

<?php
    header('Content-Type: text/javascript; charset=UTF-8');
?>

(function() {
    alert("hello world");
}) ();

Have a look at the examples below for a clearer understanding of the differences between the different operators:

> # Floating Division:
> 5/2
[1] 2.5
> 
> # Integer Division:
> 5%/%2
[1] 2
> 
> # Remainder:
> 5%%2
[1] 1

mylist[c(5,7,9)] should do it.

You want the sublists returned as sublists of the result list; you don't use [[]] (or rather, the function is [[) for that -- as Dason mentions in comments, [[ grabs the element.

With serialize the data as JSON and Base64, dependency jquery.cookie.js :

var putCookieObj = function(key, value) {
    $.cookie(key, btoa(JSON.stringify(value)));
}

var getCookieObj = function (key) {
    var cookie = $.cookie(key);
    if (typeof cookie === "undefined") return null;
    return JSON.parse(atob(cookie));
}

:)

The link of accepted answer is old and can cause warnings with generics use,

You should download latest jar from JSON-java github site

Add jar to Java build Path

In existing project in Order and Export tab move the new jar, as json-20180813.jar, as the first (or above other dependencies with JSONObject)

I think below explanation will help to you.. differentiation between those: Correlated subquery is an inner query referenced by main query (outer query) such that inner query considered as being excuted repeatedly.

non-correlated subquery is a sub query that is an independent of the outer query and it can executed on it's own without relying on main outer query.

plain subquery is not dependent on the outer query,

It's not possible with CSS3. There is a proposed CSS4 selector, $, to do just that, which could look like this (Selecting the li element):

ul $li ul.sub { ... }

See the list of CSS4 Selectors here.

As an alternative, with jQuery, a one-liner you could make use of would be this:

$('ul li:has(ul.sub)').addClass('has_sub');

You could then go ahead and style the li.has_sub in your CSS.

As you set application/x-www-form-urlencoded as content type so data sent must be like this format.

String urlParameters  = "param1=data1&param2=data2&param3=data3";

Sending part now is quite straightforward.

byte[] postData = urlParameters.getBytes( StandardCharsets.UTF_8 );
int postDataLength = postData.length;
String request = "<Url here>";
URL url = new URL( request );
HttpURLConnection conn= (HttpURLConnection) url.openConnection();           
conn.setDoOutput(true);
conn.setInstanceFollowRedirects(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); 
conn.setRequestProperty("charset", "utf-8");
conn.setRequestProperty("Content-Length", Integer.toString(postDataLength ));
conn.setUseCaches(false);
try(DataOutputStream wr = new DataOutputStream(conn.getOutputStream())) {
   wr.write( postData );
}

Or you can create a generic method to build key value pattern which is required for application/x-www-form-urlencoded.

private String getDataString(HashMap<String, String> params) throws UnsupportedEncodingException{
    StringBuilder result = new StringBuilder();
    boolean first = true;
    for(Map.Entry<String, String> entry : params.entrySet()){
        if (first)
            first = false;
        else
            result.append("&");    
        result.append(URLEncoder.encode(entry.getKey(), "UTF-8"));
        result.append("=");
        result.append(URLEncoder.encode(entry.getValue(), "UTF-8"));
    }    
    return result.toString();
}

If we want to rename a specific key in hash then we can do it as follows:
Suppose my hash is my_hash = {'test' => 'ruby hash demo'}
Now I want to replace 'test' by 'message', then:
my_hash['message'] = my_hash.delete('test')

xcopy  "C:\Documents and Settings\user\Desktop\?????????" "D:\Backup" /s /e /y /i

Probably the problem is the space.Try with quotes.

How about using recursion?

def multiply(lst):
    if len(lst) > 1:
        return multiply(lst[:-1])* lst[-1]
    else:
        return lst[0]

This can be done using httpPostedFileBase class returns the HttpInputStreamObject as per specified here

You should convert the stream into byte array and then you can read file content

Please refer following link

http://msdn.microsoft.com/en-us/library/system.web.httprequest.inputstream.aspx]

Hope this helps

UPDATE :

The stream that you get from your HTTP call is read-only sequential (non-seekable) and the FileStream is read/write seekable. You will need first to read the entire stream from the HTTP call into a byte array, then create the FileStream from that array.

Taken from here

// Read bytes from http input stream
BinaryReader b = new BinaryReader(file.InputStream);
byte[] binData = b.ReadBytes(file.ContentLength);

string result = System.Text.Encoding.UTF8.GetString(binData);

Use:

Get-Service BITS | Select StartType

Or use:

(Get-Service -Name BITS).StartType

Then

Set-Service BITS -StartupType xxx

[PowerShell 5.1]

Python iterable can be summed like so - [sum(range(10)[1:])] . This sums all elements from the list except the first element.

>>> atuple = (1,2,3,4,5)
>>> sum(atuple)
15
>>> alist = [1,2,3,4,5]
>>> sum(alist)
15

You can do this using pure CSS; no JavaScript needed. This utilizes the (somewhat counterintuitive) fact that padding-top percentages are relative to the containing block's width. Here's an example:

.wrapper {_x000D_
  width: 50%;_x000D_
  /* whatever width you want */_x000D_
  display: inline-block;_x000D_
  position: relative;_x000D_
}_x000D_
.wrapper:after {_x000D_
  padding-top: 56.25%;_x000D_
  /* 16:9 ratio */_x000D_
  display: block;_x000D_
  content: '';_x000D_
}_x000D_
.main {_x000D_
  position: absolute;_x000D_
  top: 0;_x000D_
  bottom: 0;_x000D_
  right: 0;_x000D_
  left: 0;_x000D_
  /* fill parent */_x000D_
  background-color: deepskyblue;_x000D_
  /* let's see it! */_x000D_
  color: white;_x000D_
}

<div class="wrapper">_x000D_
  <div class="main">_x000D_
    This is your div with the specified aspect ratio._x000D_
  </div>_x000D_
</div>

If you really need to send the full path of the uploded file, then you'd probably have to use something like a signed java applet as there isn't any way to get this information if the browser doesn't send it.

Your issue is that you have re-defined list as a variable previously in your code. This means that when you do type(tmpDict[key])==list if will return False because they aren't equal.

That being said, you should instead use isinstance(tmpDict[key], list) when testing the type of something, this won't avoid the problem of overwriting list but is a more Pythonic way of checking the type.

For accessibility reason, I could not pull it off with multiple type=submit buttons. The only way to work natively with a form with multiple buttons but ONLY one can submit the form when hitting the Enter key is to ensure that only one of them is of type=submit while others are in other type such as type=button. By this way, you can benefit from the better user experience in dealing with a form on a browser in terms of keyboard support.

Mutations expect two arguments: state and payload, where the current state of the store is passed by Vuex itself as the first argument and the second argument holds any parameters you need to pass.

The easiest way to pass a number of parameters is to destruct them:

mutations: {
    authenticate(state, { token, expiration }) {
        localStorage.setItem('token', token);
        localStorage.setItem('expiration', expiration);
    }
}

Then later on in your actions you can simply

store.commit('authenticate', {
    token,
    expiration,
});

It only worked for me in Firefox when accessing it from the window object.

Example...

window.onload = function()
{
 window.localStorage.clear();
}

You can't. This is an open issue in TypeScript: https://github.com/Microsoft/TypeScript/issues/19573

Follow these steps to create CSR (Code Signing Identity):

1. On your Mac, go to the folder 'Applications' ? 'Utilities' and open 'Keychain Access.'

   

2. Go to 'Keychain Access' ? Certificate Assistant ? Request a Certificate from a Certificate Authority. ?

   

3. Fill out the information in the Certificate Information window as specified below and click "Continue."
   • In the User Email Address field, enter the email address to identify with this certificate
   • In the Common Name field, enter your name
   • In the Request group, click the "Saved to disk" option ?

   

4. Save the file to your hard drive.

   

Use this CSR (.certSigningRequest) file to create project/application certificates and profiles, in Apple developer account.

I've just been playing with this and discovered a rather odd result. Say you have public properties on your class in C# like this:

public class Customer
{
    public string contact_name;
    public string company_name;
}

then you must do the JSON.stringify trick as suggested by Shyju and call it like this:

var customer = {contact_name :"Scott",company_name:"HP"};
$.ajax({
    type: "POST",
    data :JSON.stringify(customer),
    url: "api/Customer",
    contentType: "application/json"
});

However, if you define getters and setters on your class like this:

public class Customer
{
    public string contact_name { get; set; }
    public string company_name { get; set; }
}

then you can call it much more simply:

$.ajax({
    type: "POST",
    data :customer,
    url: "api/Customer"
});

This uses the HTTP header:

Content-Type:application/x-www-form-urlencoded

I'm not quite sure what's happening here but it looks like a bug (feature?) in the framework. Presumably the different binding methods are calling different "adapters", and while the adapter for application/json one works with public properties, the one for form encoded data doesn't.

I have no idea which would be considered best practice though.

Guzzle implements PSR-7. That means that it will by default store the body of a message in a Stream that uses PHP temp streams. To retrieve all the data, you can use casting operator:

$contents = (string) $response->getBody();

You can also do it with

$contents = $response->getBody()->getContents();

The difference between the two approaches is that getContents returns the remaining contents, so that a second call returns nothing unless you seek the position of the stream with rewind or seek .

$stream = $response->getBody();
$contents = $stream->getContents(); // returns all the contents
$contents = $stream->getContents(); // empty string
$stream->rewind(); // Seek to the beginning
$contents = $stream->getContents(); // returns all the contents

Instead, usings PHP's string casting operations, it will reads all the data from the stream from the beginning until the end is reached.

$contents = (string) $response->getBody(); // returns all the contents
$contents = (string) $response->getBody(); // returns all the contents

Documentation: http://docs.guzzlephp.org/en/latest/psr7.html#responses

You can use truncate one-liner below:

const text = "The string that I want to truncate!";_x000D_
_x000D_
const truncate = (str, len) => str.substring(0, (str + ' ').lastIndexOf(' ', len));_x000D_
_x000D_
console.log(truncate(text, 14));

To add to Jefromi's answer, if you don't want to place a meaningless merge in the history of the source branch, you can create a temporary branch for the ours merge, then throw it away:

git checkout <source>
git checkout -b temp            # temporary branch for merge
git merge -s ours <target>      # create merge commit with contents of <source>
git checkout <target>           # fast forward <target> to merge commit
git merge temp                  # ...
git branch -d temp              # throw temporary branch away

That way the merge commit will only exist in the history of the target branch.

Alternatively, if you don't want to create a merge at all, you can simply grab the contents of source and use them for a new commit on target:

git checkout <source>                          # fill index with contents of <source>
git symbolic-ref HEAD <target>                 # tell git we're committing on <target>
git commit -m "Setting contents to <source>"   # make an ordinary commit with the contents of <source>

Probably the simplest way is to use curl for this, there is no need to install any additional packages and it can be configured directly in a request.

Here is an example using gmail smtp server:

curl --url 'smtps://smtp.gmail.com:465' --ssl-reqd \
  --mail-from '[email protected]' \
  --mail-rcpt '[email protected]' \
  --user '[email protected]:YourPassword' \
  -T <(echo -e 'From: [email protected]\nTo: [email protected]\nSubject: Curl Test\n\nHello')

The C and C++ declaration syntax has repeatedly been described as a failed experiment, by the original designers.

Instead, let's name the type “pointer to Type”; I’ll call it Ptr_:

template< class Type >
using Ptr_ = Type*;

Now Ptr_<char> is a pointer to char.

Ptr_<const char> is a pointer to const char.

And const Ptr_<const char> is a const pointer to const char.

There.

For those who don't want elegant solutions, just a quick and dirty way to stop those messages, here is a solution that worked for me (I use Hibernate 4.3.6 and Eclipse and no answers provided above (or found on the internet) worked; neither log4j config files nor setting the logging level programatically)

public static void main(String[] args) {
    //magical - do not touch
    @SuppressWarnings("unused")
    org.jboss.logging.Logger logger = org.jboss.logging.Logger.getLogger("org.hibernate");
    java.util.logging.Logger.getLogger("org.hibernate").setLevel(java.util.logging.Level.WARNING); //or whatever level you need

    ...
}

I used it in a tutorial program downloaded from this site

How about keeping all .php-files except for index.php above the web root? No need for any rewrite rules or programmatic kludges.

Adding the includes-folder to your include path will then help to keep things simple, no need to use absolute paths etc.

I've used this:

RewriteEngine On

# Unless directory, remove trailing slash
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^/]+)/$ http://example.com/folder/$1 [R=301,L]

# Redirect external .php requests to extensionless URL
RewriteCond %{THE_REQUEST} ^(.+)\.php([#?][^\ ]*)?\ HTTP/
RewriteRule ^(.+)\.php$ http://example.com/folder/$1 [R=301,L]

# Resolve .php file for extensionless PHP URLs
RewriteRule ^([^/.]+)$ $1.php [L]

See also: this question

You could use the https://ipinfo.io API for this (it's my service). It's free for up to 1,000 req/day (with or without SSL support). It gives you coordinates, name and more. Here's an example:

curl ipinfo.io
{
  "ip": "172.56.39.47",
  "hostname": "No Hostname",
  "city": "Oakland",
  "region": "California",
  "country": "US",
  "loc": "37.7350,-122.2088",
  "org": "AS21928 T-Mobile USA, Inc.",
  "postal": "94621"
}

Here's an example which constructs a coords object with the API response that matches what you get from getCurrentPosition():

$.getJSON('https://ipinfo.io/geo', function(response) { 
    var loc = response.loc.split(',');
    var coords = {
        latitude: loc[0],
        longitude: loc[1]
    };
});

And here's a detailed example that shows how you can use it as a fallback for getCurrentPosition():

function do_something(coords) {
    // Do something with the coords here
}

navigator.geolocation.getCurrentPosition(function(position) { 
    do_something(position.coords);
    },
    function(failure) {
        $.getJSON('https://ipinfo.io/geo', function(response) { 
        var loc = response.loc.split(',');
        var coords = {
            latitude: loc[0],
            longitude: loc[1]
        };
        do_something(coords);
        });  
    };
});

See http://ipinfo.io/developers/replacing-navigator-geolocation-getcurrentposition for more details.

this worked for me:

var blobToBase64 = function(blob, callback) {
    var reader = new FileReader();
    reader.onload = function() {
        var dataUrl = reader.result;
        var base64 = dataUrl.split(',')[1];
        callback(base64);
    };
    reader.readAsDataURL(blob);
};

You need to instantiate the class it is contained within, or make the method static.

So if it is contained within class Foo:

Foo x = new Foo();
List<Integer> stuff = x.myNumbers();

or alternatively shorthand:

List<Integer> stuff = new Foo().myNumbers();

or if you make it static like so:

public static List<Integer> myNumbers()    {
    List<Integer> numbers = new ArrayList<Integer>();
    numbers.add(5);
    numbers.add(11);
    numbers.add(3);
    return(numbers);
}

you can call it like so:

List<Integer> stuff = Foo.myNumbers();

Just the same way as you would do in normal Java code.

for (Map.Entry<String, String> entry : countries.entrySet()) {
    String key = entry.getKey();
    String value = entry.getValue();
    // ...
}

However, scriptlets (raw Java code in JSP files, those <% %> things) are considered a poor practice. I recommend to install JSTL (just drop the JAR file in /WEB-INF/lib and declare the needed taglibs in top of JSP). It has a <c:forEach> tag which can iterate over among others Maps. Every iteration will give you a Map.Entry back which in turn has getKey() and getValue() methods.

Here's a basic example:

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<c:forEach items="${map}" var="entry">
    Key = ${entry.key}, value = ${entry.value}<br>
</c:forEach>

Thus your particular issue can be solved as follows:

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<select name="country">
    <c:forEach items="${countries}" var="country">
        <option value="${country.key}">${country.value}</option>
    </c:forEach>
</select>

You need a Servlet or a ServletContextListener to place the ${countries} in the desired scope. If this list is supposed to be request-based, then use the Servlet's doGet():

protected void doGet(HttpServletRequest request, HttpServletResponse response) {
    Map<String, String> countries = MainUtils.getCountries();
    request.setAttribute("countries", countries);
    request.getRequestDispatcher("/WEB-INF/page.jsp").forward(request, response);
}

Or if this list is supposed to be an application-wide constant, then use ServletContextListener's contextInitialized() so that it will be loaded only once and kept in memory:

public void contextInitialized(ServletContextEvent event) {
    Map<String, String> countries = MainUtils.getCountries();
    event.getServletContext().setAttribute("countries", countries);
}

In both cases the countries will be available in EL by ${countries}.

Hope this helps.

See also:

• Iterate over elements of List and Map using JSTL <c:forEach> tag
• How to iterate over a nested map in <c:forEach>
• How to iterate an ArrayList inside a HashMap using JSTL?
• Using special auto start servlet to initialize on startup and share application data

Use This as the solution

This worked for me perfectly..

<div align="center">
   <img src="">
</div>

try this:

ComboBox cbx = new ComboBox();
cbx.DisplayMember = "Text";
cbx.ValueMember = "Value";

EDIT (a little explanation, sory, I also didn't notice your combobox wasn't bound, I blame the lack of caffeine):

The difference between SelectedValue and SelectedItem are explained pretty well here: ComboBox SelectedItem vs SelectedValue

So, if your combobox is not bound to datasource, DisplayMember and ValueMember doesn't do anything, and SelectedValue will always be null, SelectedValueChanged won't be called. So either bind your combobox:

            comboBox1.DisplayMember = "Text";
            comboBox1.ValueMember = "Value";

            List<ComboboxItem> list = new List<ComboboxItem>();

            ComboboxItem item = new ComboboxItem();
            item.Text = "choose a server...";
            item.Value = "-1";
            list.Add(item);

            item = new ComboboxItem();
            item.Text = "S1";
            item.Value = "1";
            list.Add(item);

            item = new ComboboxItem();
            item.Text = "S2";
            item.Value = "2";
            list.Add(item);

            cbx.DataSource = list; // bind combobox to a datasource

or use SelectedItem property:

if (cbx.SelectedItem != null)
             Console.WriteLine("ITEM: "+comboBox1.SelectedItem.ToString());

The answers above are already quite great, but I really want to share the following summary article: "6 Ways to Run Shell Commands in Ruby"

Basically, it tells us:

Kernel#exec:

exec 'echo "hello $HOSTNAME"'

system and $?:

system 'false' 
puts $?

Backticks (`):

today = `date`

IO#popen:

IO.popen("date") { |f| puts f.gets }

Open3#popen3 -- stdlib:

require "open3"
stdin, stdout, stderr = Open3.popen3('dc') 

Open4#popen4 -- a gem:

require "open4" 
pid, stdin, stdout, stderr = Open4::popen4 "false" # => [26327, #<IO:0x6dff24>, #<IO:0x6dfee8>, #<IO:0x6dfe84>]

In my case, I was missing to set the header:

"Content-Type: application/json"

If you can organize the values in the array in sorted order, then you can use Arrays.binarySearch(). Otherwise you'll have to write a loop and to a linear search. If you plan to have a large (more than a few dozen) strings in the array, consider using a Set instead.

I also faced problem like this and i set this.

@XmlRootElement(name="yourRootElementName")
@XmlAccessorType(XmlAccessType.FIELD)

This will work 100%

do this: 1. run CMD (WIN+R then type in CMD) 2. Type this:

set PATH=%PATH%; java installation path\bin

Replace "java installation path" with the directory JDK is installed in, such as C:\Program Files (x86)\Java. Be sure to add the \bin after the JDK directory, because this points to "javac" and "java" (BIN stands for "binaries")

This way, you can run the Java compiler from anywhere. It is impossible to CD to the JDK directory because it has a space in Program Files, and DOS will not let you CD to these directories.

Use the in keyword without is.

if "x" in dog:
    print "Yes!"

If you'd like to check for the non-existence of a character, use not in:

if "x" not in dog:
    print "No!"

You can use Load function

Load TableName fullfilepath; 

In your test, you are comparing the two TestParent beans, not the single TestedChild bean.

Also, Spring proxies your @Configuration class so that when you call one of the @Bean annotated methods, it caches the result and always returns the same object on future calls.

See here:

• How does Spring @Configuration cache references to beans

Abstract Class
1. Contains an abstract method
2. Cannot be directly initialized
3. Cannot create an object of abstract class
4. Only used for inheritance purposes

Abstract Method
1. Cannot contain a body
2. Cannot be defined as private
3. Child classes must define the methods declared in abstract class

Example Code:

abstract class A {
    public function test1() {
        echo 'Hello World';
    }
    abstract protected function f1();
    abstract public function f2();
    protected function test2(){
        echo 'Hello World test';
    }
}

class B extends A {
    public $a = 'India';
    public function f1() {
        echo "F1 Method Call";
    }
    public function f2() {
        echo "F2 Method Call";
    }
}

$b = new B();
echo $b->test1() . "<br/>";
echo $b->a . "<br/>";
echo $b->test2() . "<br/>";
echo $b->f1() . "<br/>";
echo $b->f2() . "<br/>";

Output:

Hello World
India
Hello World test
F1 Method Call
F2 Method Call

You can alias the column names one by one, like so

SELECT col1 as `MyNameForCol1`, col2 as `MyNameForCol2` 
FROM `foobar`

Edit You can access INFORMATION_SCHEMA.COLUMNS directly to mangle a new alias like so. However, how you fit this into a query is beyond my MySql skills :(

select CONCAT('Foobar_', COLUMN_NAME)
from INFORMATION_SCHEMA.COLUMNS 
where TABLE_NAME = 'Foobar'

You need to understand the difference between the visible address of an email, and the delivery.

msg["To"] is essentially what is printed on the letter. It doesn't actually have any effect. Except that your email client, just like the regular post officer, will assume that this is who you want to send the email to.

The actual delivery however can work quite different. So you can drop the email (or a copy) into the post box of someone completely different.

There are various reasons for this. For example forwarding. The To: header field doesn't change on forwarding, however the email is dropped into a different mailbox.

The smtp.sendmail command now takes care of the actual delivery. email.Message is the contents of the letter only, not the delivery.

In low-level SMTP, you need to give the receipients one-by-one, which is why a list of adresses (not including names!) is the sensible API.

For the header, it can also contain for example the name, e.g. To: First Last <[email protected]>, Other User <[email protected]>. Your code example therefore is not recommended, as it will fail delivering this mail, since just by splitting it on , you still not not have the valid adresses!

Here is a more comprehensive method that can also accept full month names

def month_string_to_number(string):
    m = {
        'jan': 1,
        'feb': 2,
        'mar': 3,
        'apr':4,
         'may':5,
         'jun':6,
         'jul':7,
         'aug':8,
         'sep':9,
         'oct':10,
         'nov':11,
         'dec':12
        }
    s = string.strip()[:3].lower()

    try:
        out = m[s]
        return out
    except:
        raise ValueError('Not a month')

example:

>>> month_string_to_number("October")
10 
>>> month_string_to_number("oct")
10

I'm probably a bit late to the party, but I wrote the junitcategorizer for my thesis project at TOPdesk. Earlier versions indeed used a company internal Parent POM. So your problems are caused by the Parent POM not being resolvable, since it is not available to the outside world.

You can either:

• Remove the <parent> block, but then have to configure the Surefire, Compiler and other plugins yourself
• (Only applicable to this specific case!) Change it to point to our Open Source Parent POM by setting:

<parent>
    <groupId>com.topdesk</groupId>
    <artifactId>open-source-parent</artifactId>
    <version>1.2.0</version>
</parent>

It's a reserved keyword (like return, filter, function, break).

Reference

Also, as per Section 7.6.4 of Bruce Payette's Powershell in Action:

But what happens when you want a script to exit from within a function defined in that script? ... To make this easier, Powershell has the exit keyword.

Of course, as other have pointed out, it's not hard to do what you want by wrapping exit in a function:

PS C:\> function ex{exit}
PS C:\> new-alias ^D ex

Sonatype Nexus and Apache Maven are two pieces of software that often work together but they do very different parts of the job. Nexus provides a repository while Maven uses a repository to build software.

Here's a quote from "What is Nexus?":

Nexus manages software "artifacts" required for development. If you develop software, your builds can download dependencies from Nexus and can publish artifacts to Nexus creating a new way to share artifacts within an organization. While Central repository has always served as a great convenience for developers you shouldn't be hitting it directly. You should be proxying Central with Nexus and maintaining your own repositories to ensure stability within your organization. With Nexus you can completely control access to, and deployment of, every artifact in your organization from a single location.

And here is a quote from "Maven and Nexus Pro, Made for Each Other" explaining how Maven uses repositories:

Maven leverages the concept of a repository by retrieving the artifacts necessary to build an application and deploying the result of the build process into a repository. Maven uses the concept of structured repositories so components can be retrieved to support the build. These components or dependencies include libraries, frameworks, containers, etc. Maven can identify components in repositories, understand their dependencies, retrieve all that are needed for a successful build, and deploy its output back to repositories when the build is complete.

So, when you want to use both you will have a repository managed by Nexus and Maven will access this repository.

You don't need to install sqlite3 module. It is included in the standard library (since Python 2.5).

Is EmailHandler really the full name of your servlet class, i.e. it's not in a package like com.something.EmailHandler? It has to be fully-qualified in web.xml.

I recently conducted a poll "What UML Tools do you use?" in my blog. NetBeans UML was was the top opensource choice and Enterprise Architect was the top commercial choice.