<run your last command on this line>
a=${?}
if [ ${a} -ne 0 ]; then echo "do something"; fi

use whatever command you want to use instead of the echo "do something" command

I came here looking for making an input that's actually multiple lines. Turns out I didn't want an input, I wanted a textarea. You can set height or line-height as other answers specify, but it'll still just be one line of a textbox. If you want actual multiple lines, use a textarea instead. The following is an example of a 3-row textarea with a width of 500px (should be a good part of the page, not necessary to set this and will have to change it based on your requirements).

<textarea name="roleExplanation" style="width: 500px" rows="3">This role is for facility managers and holds the highest permissions in the application.</textarea>

In my case, I wanted a Tab delimited row.

from pyspark.sql import functions as F
df.select(F.concat_ws('|','_c1','_c2','_c3','_c4')).show()

This worked well like a hot knife over butter.

With the excellent matplotlib and numpy packages

from matplotlib import pyplot as mp
import numpy as np

def gaussian(x, mu, sig):
    return np.exp(-np.power(x - mu, 2.) / (2 * np.power(sig, 2.)))

x_values = np.linspace(-3, 3, 120)
for mu, sig in [(-1, 1), (0, 2), (2, 3)]:
    mp.plot(x_values, gaussian(x_values, mu, sig))

mp.show()

will produce something like

you can try

position: relative;
bottom: 20px;

but I don't see a problem on my browser (Google Chrome)

Here is how I resolved it.

It is not the most secure way however it solved my problem as security was not an issue on internal servers.

Create a new file say password.txt and store the password for the server where the file will be pasted. Save this to a location on the host server.

scp -W location/password.txt copy_file_location paste_file_location

Cheers!

This will convert a time to seconds in a double format, which is more precise than an integer value:

double elapsedTimeInSeconds = TimeUnit.MILLISECONDS.convert(elapsedTime, TimeUnit.NANOSECONDS) / 1000.0;

Try this (i use background and background-color in this example):

var ClickEventType = ((document.ontouchstart !== null) ? 'click' : 'touchstart');

if (ClickEventType == 'touchstart') {
            $('a').each(function() { // save original..
                var back_color = $(this).css('background-color');
                var background = $(this).css('background');
                $(this).attr('data-back_color', back_color);
                $(this).attr('data-background', background);
            });

            $('a').on('touchend', function(e) { // overwrite with original style..
                var background = $(this).attr('data-background');
                var back_color = $(this).attr('data-back_color');
                if (back_color != undefined) {
                    $(this).css({'background-color': back_color});
                }
                if (background != undefined) {
                    $(this).css({'background': background});
                }
            }).on('touchstart', function(e) { // clear added stlye="" elements..
                $(this).css({'background': '', 'background-color': ''});
            });
}

css:

a {
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

Strings are immutable i.e if you change their value, the old value will be discarded and a new value is created on the heap, whereas in string builder we can modify the existing value without the new value being created.

So performance-wise String Builder is beneficial as we are needlessly not occupying more memory space.

Example with Unix-style file name:

COPY (SELECT * FROM tbl) TO '/var/lib/postgres/myfile1.csv' format csv;

Read the manual about COPY (link to version 8.2).
You have to use an absolute path for the target file. Be sure to double quote file names with spaces. Example for MS Windows:

COPY (SELECT * FROM tbl)
TO E'"C:\\Documents and Settings\\Tech\Desktop\\myfile1.csv"' format csv;

In PostgreSQL 8.2, with standard_conforming_strings = off per default, you need to double backslashes, because \ is a special character and interpreted by PostgreSQL. Works in any version. It's all in the fine manual:

filename

 The absolute path name of the input or output file. Windows users might need to use an E'' string and double backslashes used as path separators.

Or the modern syntax with standard_conforming_strings = on (default since Postgres 9.1):

COPY tbl  -- short for (SELECT * FROM tbl)
TO '"C:\Documents and Settings\Tech\Desktop\myfile1.csv"' (format csv);

Or you can also use forward slashes for filenames under Windows.

An alternative is to use the meta-command \copy of the default terminal client psql.

You can also use a GUI like pgadmin and copy / paste from the result grid to Excel for small queries.

Closely related answer:

• Copy results from a PostgreSQL view in one DB to a table in another

Similar solution for MySQL:

• Exporting MYSQL data into Excel/CSV via php

I kinda come up with this code :

import React from 'react';
import { render } from 'react-dom';

// import componentns
import Main from './components/Main';
import PhotoGrid from './components/PhotoGrid';
import Single from './components/Single';

// import react router
import { Router, Route, IndexRoute, BrowserRouter, browserHistory} from 'react-router-dom'

class MainComponent extends React.Component {
  render() {
    return (
      <div>
        <BrowserRouter history={browserHistory}>
          <Route path="/" component={Main} >
            <IndexRoute component={PhotoGrid}></IndexRoute>
            <Route path="/view/:postId" component={Single}></Route>
          </Route>
        </BrowserRouter>
      </div>
    );
  }
}

render(<MainComponent />, document.getElementById('root'));

I think the error was because you were rendering the Main component, and the Main component didn't know anything about Router, so you have to render its father component.

Environment.ProcessorCount should give you the number of cores on the local machine.

One way to do this with MS Access is with a subquery but it does not have anything like the same functionality:

SELECT a.ID, 
       a.AText, 
       (SELECT Count(ID) 
        FROM table1 b WHERE b.ID <= a.ID 
        AND b.AText Like "*a*") AS RowNo
FROM Table1 AS a
WHERE a.AText Like "*a*"
ORDER BY a.ID;

The easiest solution is to use UIStackView (horizontal). Add to stack view: first view and second view with labels. Then set isHidden property of first view to false. All constrains will be calculated and updates automatically.

The SQL used in a PreparedStatement is precompiled on the driver. From that point on, the parameters are sent to the driver as literal values and not executable portions of SQL; thus no SQL can be injected using a parameter. Another beneficial side effect of PreparedStatements (precompilation + sending only parameters) is improved performance when running the statement multiple times even with different values for the parameters (assuming that the driver supports PreparedStatements) as the driver does not have to perform SQL parsing and compilation each time the parameters change.

In PySpark, I have found an additional useful way to parse files. Perhaps there is an equivalent in Scala, but I am not comfortable enough coming up with a working translation. It is, in effect, a textFile call with the addition of labels (in the below example the key = filename, value = 1 line from file).

"Labeled" textFile

input:

import glob
from pyspark import SparkContext
SparkContext.stop(sc)
sc = SparkContext("local","example") # if running locally
sqlContext = SQLContext(sc)

for filename in glob.glob(Data_File + "/*"):
    Spark_Full += sc.textFile(filename).keyBy(lambda x: filename)

output: array with each entry containing a tuple using filename-as-key and with value = each line of file. (Technically, using this method you can also use a different key besides the actual filepath name- perhaps a hashing representation to save on memory). ie.

[('/home/folder_with_text_files/file1.txt', 'file1_contents_line1'),
 ('/home/folder_with_text_files/file1.txt', 'file1_contents_line2'),
 ('/home/folder_with_text_files/file1.txt', 'file1_contents_line3'),
 ('/home/folder_with_text_files/file2.txt', 'file2_contents_line1'),
  ...]

You can also recombine either as a list of lines:

Spark_Full.groupByKey().map(lambda x: (x[0], list(x[1]))).collect()

[('/home/folder_with_text_files/file1.txt', ['file1_contents_line1', 'file1_contents_line2','file1_contents_line3']),
 ('/home/folder_with_text_files/file2.txt', ['file2_contents_line1'])]

Or recombine entire files back to single strings (in this example the result is the same as what you get from wholeTextFiles, but with the string "file:" stripped from the filepathing.):

Spark_Full.groupByKey().map(lambda x: (x[0], ' '.join(list(x[1])))).collect()

This should do when your date is in this format (dd/mm/yyyy).

  sortByDate(arr) {
    arr.sort(function(a,b){
      return Number(new Date(a.readableDate)) - Number(new Date(b.readableDate));
    });

    return arr;
  }

Then call sortByDate(myArr);

Non-blocking, multi-threaded example:

As blocking on keyboard input (since the input() function blocks) is frequently not what we want to do (we'd frequently like to keep doing other stuff), here's a very-stripped-down multi-threaded example to demonstrate how to keep running your main application while still reading in keyboard inputs whenever they arrive.

This works by creating one thread to run in the background, continually calling input() and then passing any data it receives to a queue.

In this way, your main thread is left to do anything it wants, receiving the keyboard input data from the first thread whenever there is something in the queue.

1. Bare Python 3 code example (no comments):

import threading
import queue
import time

def read_kbd_input(inputQueue):
    print('Ready for keyboard input:')
    while (True):
        input_str = input()
        inputQueue.put(input_str)

def main():
    EXIT_COMMAND = "exit"
    inputQueue = queue.Queue()

    inputThread = threading.Thread(target=read_kbd_input, args=(inputQueue,), daemon=True)
    inputThread.start()

    while (True):
        if (inputQueue.qsize() > 0):
            input_str = inputQueue.get()
            print("input_str = {}".format(input_str))

            if (input_str == EXIT_COMMAND):
                print("Exiting serial terminal.")
                break
            
            # Insert your code here to do whatever you want with the input_str.

        # The rest of your program goes here.

        time.sleep(0.01) 
    print("End.")

if (__name__ == '__main__'): 
    main()

2. Same Python 3 code as above, but with extensive explanatory comments:

"""
read_keyboard_input.py

Gabriel Staples
www.ElectricRCAircraftGuy.com
14 Nov. 2018

References:
- https://pyserial.readthedocs.io/en/latest/pyserial_api.html
- *****https://www.tutorialspoint.com/python/python_multithreading.htm
- *****https://en.wikibooks.org/wiki/Python_Programming/Threading
- https://stackoverflow.com/questions/1607612/python-how-do-i-make-a-subclass-from-a-superclass
- https://docs.python.org/3/library/queue.html
- https://docs.python.org/3.7/library/threading.html

To install PySerial: `sudo python3 -m pip install pyserial`

To run this program: `python3 this_filename.py`

"""

import threading
import queue
import time

def read_kbd_input(inputQueue):
    print('Ready for keyboard input:')
    while (True):
        # Receive keyboard input from user.
        input_str = input()
        
        # Enqueue this input string.
        # Note: Lock not required here since we are only calling a single Queue method, not a sequence of them 
        # which would otherwise need to be treated as one atomic operation.
        inputQueue.put(input_str)

def main():

    EXIT_COMMAND = "exit" # Command to exit this program

    # The following threading lock is required only if you need to enforce atomic access to a chunk of multiple queue
    # method calls in a row.  Use this if you have such a need, as follows:
    # 1. Pass queueLock as an input parameter to whichever function requires it.
    # 2. Call queueLock.acquire() to obtain the lock.
    # 3. Do your series of queue calls which need to be treated as one big atomic operation, such as calling
    # inputQueue.qsize(), followed by inputQueue.put(), for example.
    # 4. Call queueLock.release() to release the lock.
    # queueLock = threading.Lock() 

    #Keyboard input queue to pass data from the thread reading the keyboard inputs to the main thread.
    inputQueue = queue.Queue()

    # Create & start a thread to read keyboard inputs.
    # Set daemon to True to auto-kill this thread when all other non-daemonic threads are exited. This is desired since
    # this thread has no cleanup to do, which would otherwise require a more graceful approach to clean up then exit.
    inputThread = threading.Thread(target=read_kbd_input, args=(inputQueue,), daemon=True)
    inputThread.start()

    # Main loop
    while (True):

        # Read keyboard inputs
        # Note: if this queue were being read in multiple places we would need to use the queueLock above to ensure
        # multi-method-call atomic access. Since this is the only place we are removing from the queue, however, in this
        # example program, no locks are required.
        if (inputQueue.qsize() > 0):
            input_str = inputQueue.get()
            print("input_str = {}".format(input_str))

            if (input_str == EXIT_COMMAND):
                print("Exiting serial terminal.")
                break # exit the while loop
            
            # Insert your code here to do whatever you want with the input_str.

        # The rest of your program goes here.

        # Sleep for a short time to prevent this thread from sucking up all of your CPU resources on your PC.
        time.sleep(0.01) 
    
    print("End.")

# If you run this Python file directly (ex: via `python3 this_filename.py`), do the following:
if (__name__ == '__main__'): 
    main()

Sample output:

$ python3 read_keyboard_input.py
Ready for keyboard input:
hey
input_str = hey
hello
input_str = hello
7000
input_str = 7000
exit
input_str = exit
Exiting serial terminal.
End.

The Python Queue library is thread-safe:

Note that Queue.put() and Queue.get() and other Queue class methods are thread-safe! That means they implement all the internal locking semantics required for inter-thread operations, so each function call in the queue class can be considered as a single, atomic operation. See the notes at the top of the documentation: https://docs.python.org/3/library/queue.html (emphasis added):

The queue module implements multi-producer, multi-consumer queues. It is especially useful in threaded programming when information must be exchanged safely between multiple threads. The Queue class in this module implements all the required locking semantics.

References:

1. https://pyserial.readthedocs.io/en/latest/pyserial_api.html
2. *****https://www.tutorialspoint.com/python/python_multithreading.htm
3. *****https://en.wikibooks.org/wiki/Python_Programming/Threading
4. Python: How do I make a subclass from a superclass?
5. https://docs.python.org/3/library/queue.html
6. https://docs.python.org/3.7/library/threading.html

Related/Cross-Linked:

1. PySerial non-blocking read loop

Size detects duplicates, it will return the number of unique values

const set1 = new Set([1, 2, 3, 4, 5, 5, 5, 6]);
console.log(set1.size);
// expected output: 6

Toolbar customization can done by following ways

write button and textViews code inside toolbar as shown below

<android.support.v7.widget.Toolbar
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/app_bar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    >

    <Button
      android:layout_width="wrap_content"
        android:layout_height="@dimen/btn_height_small"
        android:text="Departure"
        android:layout_gravity="right"
        />
</android.support.v7.widget.Toolbar>

Other way is to use item menu as shown below

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

How can I validate if a String is null or empty using the c tags of JSTL?

You can use the empty keyword in a <c:if> for this:

<c:if test="${empty var1}">
    var1 is empty or null.
</c:if>
<c:if test="${not empty var1}">
    var1 is NOT empty or null.
</c:if>

Or the <c:choose>:

<c:choose>
    <c:when test="${empty var1}">
        var1 is empty or null.
    </c:when>
    <c:otherwise>
        var1 is NOT empty or null.
    </c:otherwise>
</c:choose>

Or if you don't need to conditionally render a bunch of tags and thus you could only check it inside a tag attribute, then you can use the EL conditional operator ${condition? valueIfTrue : valueIfFalse}:

<c:out value="${empty var1 ? 'var1 is empty or null' : 'var1 is NOT empty or null'}" />

To learn more about those ${} things (the Expression Language, which is a separate subject from JSTL), check here.

See also:

• How does EL empty operator work in JSF?

You need to use the target selector.

Here is a fiddle with another example: http://jsfiddle.net/YYPKM/3/

I have placed here complete bins for above query. you can check demo link too.

Demo: http://codebins.com/bin/4ldqp78/2/How%20to%20make%20a%20simple%20modal%20pop

HTML

<div id="panel">
  <input type="button" class="button" value="1" id="btn1">
  <input type="button" class="button" value="2" id="btn2">
  <input type="button" class="button" value="3" id="btn3">
  <br>
  <input type="text" id="valueFromMyModal">
  <!-- Dialog Box-->
  <div class="dialog" id="myform">
    <form>
      <label id="valueFromMyButton">
      </label>
      <input type="text" id="name">
      <div align="center">
        <input type="button" value="Ok" id="btnOK">
      </div>
    </form>
  </div>
</div>

JQuery

$(function() {
    $(".button").click(function() {
        $("#myform #valueFromMyButton").text($(this).val().trim());
        $("#myform input[type=text]").val('');
        $("#myform").show(500);
    });
    $("#btnOK").click(function() {
        $("#valueFromMyModal").val($("#myform input[type=text]").val().trim());
        $("#myform").hide(400);
    });
});

CSS

.button{
  border:1px solid #333;
  background:#6479fd;
}
.button:hover{
  background:#a4a9fd;
}
.dialog{
  border:5px solid #666;
  padding:10px;
  background:#3A3A3A;
  position:absolute;
  display:none;
}
.dialog label{
  display:inline-block;
  color:#cecece;
}
input[type=text]{
  border:1px solid #333;
  display:inline-block;
  margin:5px;
}
#btnOK{
  border:1px solid #000;
  background:#ff9999;
  margin:5px;
}

#btnOK:hover{
  border:1px solid #000;
  background:#ffacac;
}

Demo: http://codebins.com/bin/4ldqp78/2/How%20to%20make%20a%20simple%20modal%20pop

mapStateToProps, mapDispatchToProps and connect from react-redux library provides a convenient way to access your state and dispatch function of your store. So basically connect is a higher order component, you can also think as a wrapper if this make sense for you. So every time your state is changed mapStateToProps will be called with your new state and subsequently as you props update component will run render function to render your component in browser. mapDispatchToProps also stores key-values on the props of your component, usually they take a form of a function. In such way you can trigger state change from your component onClick, onChange events.

From docs:

const TodoListComponent = ({ todos, onTodoClick }) => (
  <ul>
    {todos.map(todo =>
      <Todo
        key={todo.id}
        {...todo}
        onClick={() => onTodoClick(todo.id)}
      />
    )}
  </ul>
)

const mapStateToProps = (state) => {
  return {
    todos: getVisibleTodos(state.todos, state.visibilityFilter)
  }
}

const mapDispatchToProps = (dispatch) => {
  return {
    onTodoClick: (id) => {
      dispatch(toggleTodo(id))
    }
  }
}

function toggleTodo(index) {
  return { type: TOGGLE_TODO, index }
}

const TodoList = connect(
  mapStateToProps,
  mapDispatchToProps
)(TodoList) 

Also make sure that you are familiar with React stateless functions and Higher-Order Components

You can try solving it with this:

TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);

TabLayout.Tab tab = tabLayout.getTabAt(pos);
if (tab != null) {
    tab.select();
}

This can also happen if your package name is invalid.

For example, if your "package" is com.my-company (which is not a valid Java package name due to the dash), IntelliJ will prevent you from creating a Java Class in that package.

I know this has been answered with a very high-quality answer. But, in short, you cant have spaces.

#!/bin/bash
STR = "Hello World"
echo $STR

Didn't work because of the spaces around the equal sign. If you were to run...

#!/bin/bash
STR="Hello World"
echo $STR

It would work

Using HashMap it is walk in the park.

main(){
    String[] array ={"a","ab","a","abc","abc","a","ab","ab","a"};
    Map<String,Integer> hm = new HashMap();

    for(String x:array){

        if(!hm.containsKey(x)){
            hm.put(x,1);
        }else{
            hm.put(x, hm.get(x)+1);
        }
    }
    System.out.println(hm);
}

You can use this for header: Important: Put the following on your PHP pages that you want to include the content.

<?php
//at top:
require('header.php'); 
 ?>
 <?php
// at bottom:
require('footer.php');
?>

You can also include a navbar globaly just use this instead:

 <?php
 // At top:
require('header.php'); 
 ?>
  <?php
// At bottom:
require('footer.php');
 ?>
 <?php
 //Wherever navbar goes:
require('navbar.php'); 
?>

In header.php:

 <!DOCTYPE html>
 <html lang="en">
 <head>
    <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 </head>
 <body> 

Do Not close Body or Html tags!
Include html here:

 <?php
 //Or more global php here:

 ?>

Footer.php:

Code here:

<?php
//code

?>

Navbar.php:

<p> Include html code here</p>
<?php
 //Include Navbar PHP code here
 
?>

Benifits:

• Cleaner main php file (index.php) script.
• Change the header or footer. etc to change it on all pages with the include— Good for alerts on all pages etc...
• Time Saving!
• Faster page loads!
• you can have as many files to include as needed!
• server sided!

The Updated code is :

 private class SMSReceiver extends BroadcastReceiver {
                private Bundle bundle;
                private SmsMessage currentSMS;
                private String message;

                @Override
                public void onReceive(Context context, Intent intent) {

                    if (intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")) {
                        bundle = intent.getExtras();
                        if (bundle != null) {
                            Object[] pdu_Objects = (Object[]) bundle.get("pdus");
                            if (pdu_Objects != null) {

                                for (Object aObject : pdu_Objects) {

                                    currentSMS = getIncomingMessage(aObject, bundle);

                                    String senderNo = currentSMS.getDisplayOriginatingAddress();

                                    message = currentSMS.getDisplayMessageBody();
                                    Toast.makeText(OtpActivity.this, "senderNum: " + senderNo + " :\n message: " + message, Toast.LENGTH_LONG).show();
                                }
                                this.abortBroadcast();
                                // End of loop
                            }
                        }
                    } // bundle null
                }
            }

        private SmsMessage getIncomingMessage(Object aObject, Bundle bundle) {
            SmsMessage currentSMS;
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                String format = bundle.getString("format");
                currentSMS = SmsMessage.createFromPdu((byte[]) aObject, format);
            } else {
                currentSMS = SmsMessage.createFromPdu((byte[]) aObject);
            }
    return currentSMS;
}

older code was :

Object [] pdus = (Object[]) myBundle.get("pdus");

    messages = new SmsMessage[pdus.length];

    for (int i = 0; i < messages.length; i++)
    {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            String format = myBundle.getString("format");
            messages[i] = SmsMessage.createFromPdu((byte[]) pdus[i], format);
        }
        else {
            messages[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
        }
        strMessage += "SMS From: " + messages[i].getOriginatingAddress();
        strMessage += " : ";
        strMessage += messages[i].getMessageBody();
        strMessage += "\n";
    } 

The simple SYntax of code is :

private class SMSReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals(Telephony.Sms.Intents.SMS_RECEIVED_ACTION)) {
            SmsMessage[] smsMessages = Telephony.Sms.Intents.getMessagesFromIntent(intent);
            for (SmsMessage message : smsMessages) {
                // Do whatever you want to do with SMS.
            }
        }
    }
}

you can pull it out of the flow by setting position:absolute on it, but you'll have different display issues to deal with. Or you can explicitly set the width to > 960.

Simple JAVA code to calculate cosine similarity

/**
   * Method to calculate cosine similarity of vectors
   * 1 - exactly similar (angle between them is 0)
   * 0 - orthogonal vectors (angle between them is 90)
   * @param vector1 - vector in the form [a1, a2, a3, ..... an]
   * @param vector2 - vector in the form [b1, b2, b3, ..... bn]
   * @return - the cosine similarity of vectors (ranges from 0 to 1)
   */
  private double cosineSimilarity(List<Double> vector1, List<Double> vector2) {

    double dotProduct = 0.0;
    double normA = 0.0;
    double normB = 0.0;
    for (int i = 0; i < vector1.size(); i++) {
      dotProduct += vector1.get(i) * vector2.get(i);
      normA += Math.pow(vector1.get(i), 2);
      normB += Math.pow(vector2.get(i), 2);
    }
    return dotProduct / (Math.sqrt(normA) * Math.sqrt(normB));
  }

I'm developing with android studio 2+.

to create class diagrams I did the following: - install "ObjectAid UML Explorer" as plugin for eclipse(in my case luna with android sdk but works with younger versions as well) ... go to eclipse marketplace and search for "ObjectAid UML Explorer". it's further down in the search results. after installation and restart of eclipse ...

open an empty android or what-ever-java-project in eclipse. then right click on the empty eclipse project in the project explorer -> select 'build path' then I link my ANDROID STUDIO SRC PATH into my eclipse android project. doesn't matter if there are errors. again right click on the eclipse-android project and select: New in the filter type 'class' then you should see among others an option 'class diagram' ... select it and confgure it ... png stuff, visibility, etc. drag/drop your ANDROID STUDIO project classes into the open diagram -> voila :)

hth

I open eclipse(luna, but that doesn't matter). I got the "ObjectAid UML Explorer"
that installed I open an empty android project oin eclipse, right

I solve this problem with the line below:

cordova plugin add cordova-android-support-gradle-release --save

After that the compile was succesful.

I had to come up with my own solution since everything I've tested so far failed at some point.

>>> import re
>>> def split_words(text):
...     rgx = re.compile(r"((?:(?<!'|\w)(?:\w-?'?)+(?<!-))|(?:(?<='|\w)(?:\w-?'?)+(?=')))")
...     return rgx.findall(text)

It seems to be working fine, at least for the examples below.

>>> split_words("The hill-tops gleam in morning's spring.")
['The', 'hill-tops', 'gleam', 'in', "morning's", 'spring']
>>> split_words("I'd say it's James' 'time'.")
["I'd", 'say', "it's", "James'", 'time']
>>> split_words("tic-tac-toe's tic-tac-toe'll tic-tac'tic-tac we'll--if tic-tac")
["tic-tac-toe's", "tic-tac-toe'll", "tic-tac'tic-tac", "we'll", 'if', 'tic-tac']
>>> split_words("google.com [email protected] split_words")
['google', 'com', 'email', 'google', 'com', 'split_words']
>>> split_words("Kurt Friedrich Gödel (/'g??rd?l/;[2] German: ['k???t 'gø?dl?] (listen);")
['Kurt', 'Friedrich', 'Gödel', ''g??rd?l', '2', 'German', ''k??', 't', ''gø?dl', 'listen']
>>> split_words("April 28, 1906 – January 14, 1978) was an Austro-Hungarian-born Austrian...")
['April', '28', '1906', 'January', '14', '1978', 'was', 'an', 'Austro-Hungarian-born', 'Austrian']

Convert.ToInt32

has 19 overloads or 19 different ways that you can call it. Maybe more in 2010 versions.

It will attempt to convert from the following TYPES;

Object, Boolean, Char, SByte, Byte, Int16, UInt16, Int32, UInt32, Int64, UInt64, Single, Double, Decimal, String, Date

and it also has a number of other methods; one to do with a number base and 2 methods involve a System.IFormatProvider

Parse on the other hand only has 4 overloads or 4 different ways you can call the method.

Integer.Parse( s As String)

Integer.Parse( s As String,  style As System.Globalization.NumberStyles )

Integer.Parse( s As String, provider As System.IFormatProvider )

Integer.Parse( s As String,  style As System.Globalization.NumberStyles, provider As System.IFormatProvider )

To Completely Remove Android Studio from Windows:

Step 1: Run the Android Studio uninstaller

The first step is to run the uninstaller. Open the Control Panel and under Programs, select Uninstall a Program. After that, click on "Android Studio" and press Uninstall. If you have multiple versions, uninstall them as well.

Step 2: Remove the Android Studio files

To delete any remains of Android Studio setting files, in File Explorer, go to your user folder (%USERPROFILE%), and delete .android, .AndroidStudio and any analogous directories with versions on the end, i.e. .AndroidStudio1.2, as well as .gradle and .m2 if they exist.

Then go to %APPDATA% and delete the JetBrains directory.

Finally, go to C:\Program Files and delete the Android directory.

Step 3: Remove SDK

To delete any remains of the SDK, go to %LOCALAPPDATA% and delete the Android directory.

Step 4: Delete Android Studio projects

Android Studio creates projects in a folder %USERPROFILE%\AndroidStudioProjects, which you may want to delete.

I have been using [attr.disabled] because I still like this template driven than programmatic enable()/disable() as it is superior IMO.

Change

<md-input formControlName="id" placeholder="ID" [disabled]="true"></md-input>

to

<md-input formControlName="id" placeholder="ID" [attr.disabled]="true"></md-input>

If you are on newer material change md-input to mat-input.

To capture several parameters using the same name, I modified the while loop in Tomalak's method like this:

  while (match = re.exec(url)) {
    var pName = decode(match[1]);
    var pValue = decode(match[2]);
    params[pName] ? params[pName].push(pValue) : params[pName] = [pValue];
  }

input: ?firstname=george&lastname=bush&firstname=bill&lastname=clinton

returns: {firstname : ["george", "bill"], lastname : ["bush", "clinton"]}

I solved this problem by deleting the empty users creating by MySQL. I only have root user and my own user. I deleted the rest.

HTML event handler code behaves like the body of a JavaScript function. Many languages such as C or Perl implicitly return the value of the last expression evaluated in the function body. JavaScript doesn't, it discards it and returns undefined unless you write an explicit returnEXPR.

The problem could be in Flex's SOAP encoder. Try extending the SOAP encoder in your Flex application and debug the program to see how the null value is handled.

My guess is, it's passed as NaN (Not a Number). This will mess up the SOAP message unmarshalling process sometime (most notably in the JBoss 5 server...). I remember extending the SOAP encoder and performing an explicit check on how NaN is handled.

I found meliae to be much more functional than Heapy or PySizer. If you happen to be running a wsgi webapp, then Dozer is a nice middleware wrapper of Dowser

The code block with the static modifier signifies a class initializer; without the static modifier the code block is an instance initializer.

Class initializers are executed in the order they are defined (top down, just like simple variable initializers) when the class is loaded (actually, when it's resolved, but that's a technicality).

Instance initializers are executed in the order defined when the class is instantiated, immediately before the constructor code is executed, immediately after the invocation of the super constructor.

If you remove static from int a, it becomes an instance variable, which you are not able to access from the static initializer block. This will fail to compile with the error "non-static variable a cannot be referenced from a static context".

If you also remove static from the initializer block, it then becomes an instance initializer and so int a is initialized at construction.

INSERT INTO preliminary_image (style_id,pre_image_status,file_extension,reviewer_id,
uploader_id,is_deleted,last_updated) 

SELECT '4827499',pre_image_status,file_extension,reviewer_id,
uploader_id,'0',last_updated FROM preliminary_image WHERE style_id=4827488

Analysis

We can use above query if we want to copy data from one table to another table in mysql

1. Here source and destination table are same, we can use different tables also.
2. Few columns we are not copying like style_id and is_deleted so we selected them hard coded from another table
3. Table we used in source also contains auto increment field so we left that column and it get inserted automatically with execution of query.

Execution results

1 queries executed, 1 success, 0 errors, 0 warnings

Query: insert into preliminary_image (style_id,pre_image_status,file_extension,reviewer_id,uploader_id,is_deleted,last_updated) select ...

5 row(s) affected

Execution Time : 0.385 sec Transfer Time : 0 sec Total Time : 0.386 sec

If you are happy to run a batch file along with a couple of tiny helper programs, a complete solution is posted here:
How can a batch file run a program and set the position and size of the window? - Stack Overflow (asked: May 1, 2012)

When you call test with &nKByte, the address-of operator creates a temporary value, and you can't normally have references to temporary values because they are, well, temporary.

Either do not use a reference for the argument, or better yet don't use a pointer.

This kind of logic could be implemented using EXISTS:

CREATE TABLE tab(a INT, b VARCHAR(10));
INSERT INTO tab(a,b) VALUES(1,'a'),(1, NULL),(NULL, 'a'),(2,'b');

Query:

DECLARE @a INT;

--SET @a = 1;    -- specific NOT NULL value
--SET @a = NULL; -- NULL value
--SET @a = -1;   -- all values

SELECT *
FROM tab t
WHERE EXISTS(SELECT t.a INTERSECT SELECT @a UNION SELECT @a WHERE @a = '-1');

db<>fiddle demo

It could be extended to contain multiple params:

SELECT *
FROM tab t
WHERE EXISTS(SELECT t.a INTERSECT SELECT @a UNION SELECT @a WHERE @a = '-1')
  AND EXISTS(SELECT t.b INTERSECT SELECT @b UNION SELECT @a WHERE @b = '-1');

Get it inside controller as an object via call Get<YourType>():

public IActionResult Index([FromServices] IConfiguration config)
{
    BillModel model = config.GetSection("Yst.Requisites").Get<BillModel>();
    return View(model);
}

MSDN seems to indicate that the Cxxx casts for specific types can improve performance in VB .NET because they are converted to inline code. For some reason, it also suggests DirectCast as opposed to CType in certain cases (the documentations states it's when there's an inheritance relationship; I believe this means the sanity of the cast is checked at compile time and optimizations can be applied whereas CType always uses the VB runtime.)

When I'm writing VB .NET code, what I use depends on what I'm doing. If it's prototype code I'm going to throw away, I use whatever I happen to type. If it's code I'm serious about, I try to use a Cxxx cast. If one doesn't exist, I use DirectCast if I have a reasonable belief that there's an inheritance relationship. If it's a situation where I have no idea if the cast should succeed (user input -> integers, for example), then I use TryCast so as to do something more friendly than toss an exception at the user.

One thing I can't shake is I tend to use ToString instead of CStr but supposedly Cstr is faster.

Encode string as unicode.

>>> special = u"\u2022"
>>> abc = u'ABC•def'
>>> abc.replace(special,'X')
u'ABCXdef'

Your lastIndex += findStr.length(); was placed outside the brackets, causing an infinite loop (when no occurence was found, lastIndex was always to findStr.length()).

Here is the fixed version :

String str = "helloslkhellodjladfjhello";
String findStr = "hello";
int lastIndex = 0;
int count = 0;

while (lastIndex != -1) {

    lastIndex = str.indexOf(findStr, lastIndex);

    if (lastIndex != -1) {
        count++;
        lastIndex += findStr.length();
    }
}
System.out.println(count);

There are some problems implementing this which the original accepted answer does not answer:

1. The onscroll event of the window is firing very often. This implies that you either have to use a very performant listener, or you have to delay the listener somehow. jQuery Creator John Resig states here how a delayed mechanism can be implemented, and the reasons why you should do it. In my opinion, given todays browsers and environments, a performant listener will do as well. Here is an implementation of the pattern suggested by John Resig
2. The way position:fixed works in css, if you scroll down the page and move an element from position:static to position: fixed, the page will "jump" a little because the document "looses" the height of the element. You can get rid of that by adding the height to the scrollTop and replace the lost height in the document body with another object. You can also use that object to determine if the sticky item has already been moved to position: fixed and reduce the calls to the code reverting position: fixed to the original state: Look at the fiddle here
3. Now, the only expensive thing in terms of performance the handler is really doing is calling scrollTop on every call. Since the interval bound handler has also its drawbacks, I'll go as far as to argue here that you can reattach the event listener to the original scroll Event to make it feel snappier without many worries. You'll have to profile it though, on every browser you target / support. See it working here

Here's the code:

JS

/* Initialize sticky outside the event listener as a cached selector.
 * Also, initialize any needed variables outside the listener for 
 * performance reasons - no variable instantiation is happening inside the listener.
 */
var sticky = $('#sticky'),
    stickyClone,
    stickyTop = sticky.offset().top,
    scrollTop,
    scrolled = false,
    $window = $(window);

/* Bind the scroll Event */
$window.on('scroll', function (e) {
    scrollTop = $window.scrollTop();

    if (scrollTop >= stickyTop && !stickyClone) {
        /* Attach a clone to replace the "missing" body height */
        stickyClone = sticky.clone().prop('id', sticky.prop('id') + '-clone')
        stickyClone = stickyClone.insertBefore(sticky);
        sticky.addClass('fixed');
    } else if (scrollTop < stickyTop && stickyClone) {
        /* Since sticky is in the viewport again, we can remove the clone and the class */
        stickyClone.remove();
        stickyClone = null;
        sticky.removeClass('fixed');
    }
});

CSS

body {
    margin: 0
}
.sticky {
    padding: 1em;
    background: black;
    color: white;
    width: 100%
}
.sticky.fixed {
    position: fixed;
    top: 0;
    left: 0;
}
.content {
    padding: 1em
}

HTML

<div class="container">
  <div id="page-above" class="content">
    <h2>Some Content above sticky</h2>
    ...some long text...
  </div>
  <div id="sticky" class="sticky">This is sticky</div>
  <div id="page-content" class="content">
    <h2>Some Random Page Content</h2>...some really long text...
  </div>
</div>

Use Object.keys():

var myObject = { a: 'c', b: 'a', c: 'b' };_x000D_
var keyNames = Object.keys(myObject);_x000D_
console.log(keyNames); // Outputs ["a","b","c"]

Object.keys() gives you an array of property names belonging to the input object.

Not sure if this would be helpful. I am using a similar Amazon Linux AMI, which has tomcat7 living under /usr/share/tomcat7.

If tomcat is already running on your machine you can try:

ps -ef | grep tomcat

or

ps -ef | grep java

to check where it's running from.

A solution that works:

Wrap the part of the document that needs this modified behavior with the code provided below. In my case the portion to wrap is a \part{} and some text following it.

\makeatletter\@openrightfalse
\part{Whatever}

Some text

\chapter{Foo}
\@openrighttrue\makeatother 

The wrapped portion should also include the chapter at the beginning of which this behavior needs to stop. Otherwise LaTeX may generate an empty page before this chapter.

Source: folks at the #latex IRC channel on irc.freenode.net

This comes in useful when you have global variables. You declare the existence of global variables in a header, so that each source file that includes the header knows about it, but you only need to “define” it once in one of your source files.

To clarify, using extern int x; tells the compiler that an object of type int called x exists somewhere. It's not the compilers job to know where it exists, it just needs to know the type and name so it knows how to use it. Once all of the source files have been compiled, the linker will resolve all of the references of x to the one definition that it finds in one of the compiled source files. For it to work, the definition of the x variable needs to have what's called “external linkage”, which basically means that it needs to be declared outside of a function (at what's usually called “the file scope”) and without the static keyword.

header:

#ifndef HEADER_H
#define HEADER_H

// any source file that includes this will be able to use "global_x"
extern int global_x;

void print_global_x();

#endif

source 1:

#include "header.h"

// since global_x still needs to be defined somewhere,
// we define it (for example) in this source file
int global_x;

int main()
{
    //set global_x here:
    global_x = 5;

    print_global_x();
}

source 2:

#include <iostream>
#include "header.h"

void print_global_x()
{
    //print global_x here:
    std::cout << global_x << std::endl;
}

You can use the | operator to combine querysets directly without needing Q objects:

result = Item.objects.filter(item.creator = owner) | Item.objects.filter(item.moderated = False)

(edit - I was initially unsure if this caused an extra query but @spookylukey pointed out that lazy queryset evaluation takes care of that)

We can update the First Season column in df with the following syntax:

df['First Season'] = expression_for_new_values

To map the values in First Season we can use pandas‘ .map() method with the below syntax:

data_frame(['column']).map({'initial_value_1':'updated_value_1','initial_value_2':'updated_value_2'})

If using sqlplus you can define a variable thus:

define <varname>=<varvalue>

And you can display the value by:

define <varname>

And then use it in a query as, for example:

select *
from tab1
where col1 = '&varname';

First of all you don't use width=300px that's an attribute setting for the tag not CSS, use width: 300px; instead.

I would suggest applying the clearfix technique on the #outerdiv. Clearfix is a general solution to clear 2 floating divs so the parent div will expand to accommodate the 2 floating divs.

<div id='outerdiv' class='clearfix' style='width:600px; background-color: black;'>
    <div style='width:300px; float: left;'>
        <p>xxxxxxxxxxxxxxxxxxxxxxxxxxxxx</p>
    </div>

    <div style='width:300px; float: left;'>
        <p>zzzzzzzzzzzzzzzzzzzzzzzzzzzzz</p>
    </div>
</div>

Here is an example of your situation and what Clearfix does to resolve it.

The dollar sign is treated just like a normal letter or underscore (_). It has no special significance to the interpreter.

Unlike many similar languages, identifiers (such as functional and variable names) in Javascript can contain not only letters, numbers and underscores, but can also contain dollar signs. They are even allowed to start with a dollar sign, or consist only of a dollar sign and nothing else.

Thus, $ is a valid function or variable name in Javascript.

Why would you want a dollar sign in an identifier?

The syntax doesn't really enforce any particular usage of the dollar sign in an identifier, so it's up to you how you wish to use it. In the past, it has often been recommended to start an identifier with a dollar sign only in generated code - that is, code created not by hand but by a code generator.

In your example, however, this doesn't appear to be the case. It looks like someone just put a dollar sign at the start for fun - perhaps they were a PHP programmer who did it out of habit, or something. In PHP, all variable names must have a dollar sign in front of them.

There is another common meaning for a dollar sign in an interpreter nowadays: the jQuery object, whose name only consists of a single dollar sign ($). This is a convention borrowed from earlier Javascript frameworks like Prototype, and if jQuery is used with other such frameworks, there will be a name clash because they will both use the name $ (jQuery can be configured to use a different name for its global object). There is nothing special in Javascript that allows jQuery to use the single dollar sign as its object name; as mentioned above, it's simply just another valid identifier name.

You cannot access a local directory from pl/sql. If you use bfile, you will setup a directory (create directory) on the server where Oracle is running where you will need to put your images.

If you want to insert a handful of images from your local machine, you'll need a client side app to do this. You can write your own, but I typically use Toad for this. In schema browser, click onto the table. Click the data tab, and hit + sign to add a row. Double click the BLOB column, and a wizard opens. The far left icon will load an image into the blob:

SQL Developer has a similar feature. See the "Load" link below:

If you need to pull images over the wire, you can do it using pl/sql, but its not straight forward. First, you'll need to setup ACL list access (for security reasons) to allow a user to pull over the wire. See this article for more on ACL setup.

Assuming ACL is complete, you'd pull the image like this:

declare
    l_url varchar2(4000) := 'http://www.oracleimg.com/us/assets/12_c_navbnr.jpg';
    l_http_request   UTL_HTTP.req;
    l_http_response  UTL_HTTP.resp;
    l_raw RAW(2000);
    l_blob BLOB;
begin
   -- Important: setup ACL access list first!

    DBMS_LOB.createtemporary(l_blob, FALSE);

    l_http_request  := UTL_HTTP.begin_request(l_url);
    l_http_response := UTL_HTTP.get_response(l_http_request);

  -- Copy the response into the BLOB.
  BEGIN
    LOOP
      UTL_HTTP.read_raw(l_http_response, l_raw, 2000);
      DBMS_LOB.writeappend (l_blob, UTL_RAW.length(l_raw), l_raw);
    END LOOP;
  EXCEPTION
    WHEN UTL_HTTP.end_of_body THEN
      UTL_HTTP.end_response(l_http_response);
  END;

  insert into my_pics (pic_id, pic) values (102, l_blob);
  commit;

  DBMS_LOB.freetemporary(l_blob); 
end;

Hope that helps.

You can use EXCEPT in mssql or MINUS in oracle, they are identical according to :

http://blog.sqlauthority.com/2008/08/07/sql-server-except-clause-in-sql-server-is-similar-to-minus-clause-in-oracle/

Should work.

Here's a working example:

http://jsfiddle.net/rhpNc/

Excerpt:

function loadIframe(iframeName, url) {
    var $iframe = $('#' + iframeName);
    if ($iframe.length) {
        $iframe.attr('src',url);
        return false;
    }
    return true;
}

After a lot of searching this worked for me:

public static IEnumerable<TEntity> OrderBy<TEntity>(this IEnumerable<TEntity> source, 
                                                    string orderByProperty, bool desc)
{
    string command = desc ? "OrderByDescending" : "OrderBy";
    var type = typeof(TEntity);
    var property = type.GetProperty(orderByProperty);
    var parameter = Expression.Parameter(type, "p");
    var propertyAccess = Expression.MakeMemberAccess(parameter, property);
    var orderByExpression = Expression.Lambda(propertyAccess, parameter);
    var resultExpression = Expression.Call(typeof(Queryable), command, 
                                           new[] { type, property.PropertyType },
                                           source.AsQueryable().Expression, 
                                           Expression.Quote(orderByExpression));
    return source.AsQueryable().Provider.CreateQuery<TEntity>(resultExpression);
}

Write this code from where you want to Intent into next activity.

    yourimageView.setDrawingCacheEnabled(true); 
    Drawable drawable = ((ImageView)view).getDrawable(); 
    Bitmap bitmap = imageView.getDrawingCache();
    Intent intent = new Intent(getBaseContext(), NextActivity.class);
    intent.putExtra("Image", imageBitmap);

In onCreate Function of NextActivity.class

Bitmap hotel_image;
Intent intent = getIntent();
hotel_image= intent.getParcelableExtra("Image");

EDITED: This guy really brought it home and has a good little tutorial http://instantiatorgratification.blogspot.com/2013/05/google-play-services-with-android-studio.html

one side note: I had played around so much that I needed to do a gradlew clean to get it to run succesfully

If you have imported your project or are working from the Sample Maps application located in \extras\google\google_play_services\samples\maps check out this tutorial.

https://stackoverflow.com/a/16598478/2414698

If you are creating a new project from scratch then note Xav's comments on that same post. He describes that Android Studio uses a different compiler and that you have to modify the build.gradle file manually. I did this with success. I copied

• google-play-services.jar
• google-play-services.jar.properties

into my lib directory and added the following to my build.gradle file

dependencies {
    compile files('libs/android-support-v4.jar')
    compile files('libs/google-play-services.jar')
}

Also, if this is a new project check out this post, too.

https://stackoverflow.com/a/16671865/2414698

Here is the simplest solution

select m_id,v_id,max(timestamp) from table group by m_id;

Group by m_id but get max of timestamp for each m_id.

Regular expressions with character classes (e.g. [[:digit:]]) are not supported in the default regular expression syntax used by find. You need to specify a different regex type such as posix-extended in order to use them.

Take a look at GNU Find's Regular Expression documentation which shows you all the regex types and what they support.

From this thread, there are different ways to do this:

double r = 5.1234;
System.out.println(r); // r is 5.1234

int decimalPlaces = 2;
BigDecimal bd = new BigDecimal(r);

// setScale is immutable
bd = bd.setScale(decimalPlaces, BigDecimal.ROUND_HALF_UP);
r = bd.doubleValue();

System.out.println(r); // r is 5.12

f = (float) (Math.round(n*100.0f)/100.0f);

DecimalFormat df2 = new DecimalFormat( "#,###,###,##0.00" );
double dd = 100.2397;
double dd2dec = new Double(df2.format(dd)).doubleValue();

// The value of dd2dec will be 100.24

The DecimalFormat() seems to be the most dynamic way to do it, and it is also very easy to understand when reading others code.

AppDelegate.swift

func createDatabase()
{
    var path:Array=NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true)
    let directory:String=path[0]
    let DBpath=(directory as NSString).appendingPathComponent("Food.sqlite")

    print(DBpath)

    if (FileManager.default.fileExists(atPath: DBpath))
    {
        print("Successfull database create")
    }
    else
    {
        let pathfrom:String=(Bundle.main.resourcePath! as NSString).appendingPathComponent("Food.sqlite")

        var success:Bool
        do {
            try FileManager.default.copyItem(atPath: pathfrom, toPath: DBpath)
            success = true
        } catch _ {
            success = false
        }

        if !success
        {
            print("database not create ")
        }
        else
        {
            print("Successfull database new create")
        }
    }
}

Database.swift

import UIKit

class database: NSObject
{
func databasePath() -> NSString
{
    var path:Array=NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true)
    let directory:String=path[0] 
    let DBpath=(directory as NSString).appendingPathComponent("Food.sqlite")

    if (FileManager.default.fileExists(atPath: DBpath))
    {
        return DBpath as NSString
    }
    return DBpath as NSString
}

func ExecuteQuery(_ str:String) -> Bool
{
    var result:Bool=false
    let DBpath:String=self.databasePath() as String

    var db: OpaquePointer? = nil
    var stmt:OpaquePointer? = nil

    let strExec=str.cString(using: String.Encoding.utf8)

    if (sqlite3_open(DBpath, &db)==SQLITE_OK)
    {
        if (sqlite3_prepare_v2(db, strExec! , -1, &stmt, nil) == SQLITE_OK)
        {
            if (sqlite3_step(stmt) == SQLITE_DONE)
            {
                result=true
            } 
        }
        sqlite3_finalize(stmt)
    }
    sqlite3_close(db)

    return result
}

func SelectQuery(_ str:String) -> Array<Dictionary<String,String>>
{
    var result:Array<Dictionary<String,String>>=[]
    let DBpath:String=self.databasePath() as String

    var db: OpaquePointer? = nil
    var stmt:OpaquePointer? = nil

    let strExec=str.cString(using: String.Encoding.utf8)

    if ( sqlite3_open(DBpath,&db) == SQLITE_OK)
    {
        if (sqlite3_prepare_v2(db, strExec! , -1, &stmt, nil) == SQLITE_OK)
        {
            while (sqlite3_step(stmt) == SQLITE_ROW)
            {
                var i:Int32=0
                let icount:Int32=sqlite3_column_count(stmt)

                var dict=Dictionary<String, String>()

                while i < icount
                {
                    let strF=sqlite3_column_name(stmt, i)
                    let strV = sqlite3_column_text(stmt, i)

                    let rFiled:String=String(cString: strF!)
                    let rValue:String=String(cString: strV!)
                    //let rValue=String(cString: UnsafePointer<Int8>(strV!))

                    dict[rFiled] = rValue

                    i += 1
                }
                result.insert(dict, at: result.count)
            }
        sqlite3_finalize(stmt)
        }

    sqlite3_close(db)
    }
    return result
}

func AllSelectQuery(_ str:String) -> Array<Model>
{
    var result:Array<Model>=[]
    let DBpath:String=self.databasePath() as String

    var db: OpaquePointer? = nil
    var stmt:OpaquePointer? = nil

    let strExec=str.cString(using: String.Encoding.utf8)

    if ( sqlite3_open(DBpath,&db) == SQLITE_OK)
    {
        if (sqlite3_prepare_v2(db, strExec! , -1, &stmt, nil) == SQLITE_OK)
        {
            while (sqlite3_step(stmt) == SQLITE_ROW)
            {
                let mod=Model()

                mod.id=String(cString: sqlite3_column_text(stmt, 0))
                mod.image=String(cString: sqlite3_column_text(stmt, 1))
                mod.name=String(cString: sqlite3_column_text(stmt, 2))
                mod.foodtype=String(cString: sqlite3_column_text(stmt, 3))
                mod.vegtype=String(cString: sqlite3_column_text(stmt, 4))
                mod.details=String(cString: sqlite3_column_text(stmt, 5))

                result.insert(mod, at: result.count)
            }
            sqlite3_finalize(stmt)
        }
        sqlite3_close(db)
    }
    return result
}

}

Model.swift

import UIKit


class Model: NSObject
{
var uid:Int = 0
var id:String = ""
var image:String = ""
var name:String = ""
var foodtype:String = ""
var vegtype:String = ""
var details:String = ""
var mealtype:String = ""
var date:String = ""
}

Access database :

let DB=database()
var mod=Model()

database Query fire :

var DailyResult:Array<Model> = DB.AllSelectQuery("select * from food where foodtype == 'Sea Food' ORDER BY name ASC")

I had the same problem and I fixed by setting transparent png image as background for the parent tag.

This is the 1px x 1px PNG Image that I have created with 60% Opacity of black background !

Could anyone help explain why

In Python 2 a python "int" was equivalent to a C long. In Python 3 an "int" is an arbitrary precision type but numpy still uses "int" it to represent the C type "long" when creating arrays.

The size of a C long is platform dependent. On windows it is always 32-bit. On unix-like systems it is normally 32 bit on 32 bit systems and 64 bit on 64 bit systems.

or give a solution for the code on windows? Thanks so much!

Choose a data type whose size is not platform dependent. You can find the list at https://docs.scipy.org/doc/numpy/reference/arrays.scalars.html#arrays-scalars-built-in the most sensible choice would probably be np.int64

Can't you implement your own timeout system?

Keep a sorted list, or better yet a priority heap as Heath suggests, of timeout events. In your select or poll calls use the timeout value from the top of the timeout list. When that timeout arrives, do that action attached to that timeout.

That action could be closing a socket that hasn't connected yet.

,Another aproach using common table expression:

with firstOnly as (
    select Orders.OrderNumber, LineItems.Quantity, LineItems.Description, ROW_NUMBER() over (partiton by Orders.OrderID order by Orders.OrderID) lp
    FROM Orders
        join LineItems on Orders.OrderID = LineItems.OrderID
) select *
  from firstOnly
  where lp = 1

or, in the end maybe you would like to show all rows joined?

comma separated version here:

  select *
  from Orders o
    cross apply (
        select CAST((select l.Description + ','
        from LineItems l
        where l.OrderID = s.OrderID
        for xml path('')) as nvarchar(max)) l
    ) lines

Playing with the tsconfig.json You can also targeting es5 like this :

{
    "compilerOptions": {
        "experimentalDecorators": true,
        "module": "commonjs", 
        "target": "es5"
    }
    ...

I like Keith Hill's answer except it has a bug that prevents it from recursing past two levels. These commands manifest the bug:

New-Item level1/level2/level3/level4/foobar.txt -Force -ItemType file
cd level1
GetFiles . xyz | % { $_.fullname }

With Hill's original code you get this:

...\level1\level2
...\level1\level2\level3

Here is a corrected, and slightly refactored, version:

function GetFiles($path = $pwd, [string[]]$exclude)
{
    foreach ($item in Get-ChildItem $path)
    {
        if ($exclude | Where {$item -like $_}) { continue }

        $item
        if (Test-Path $item.FullName -PathType Container)
        {
            GetFiles $item.FullName $exclude
        }
    }
} 

With that bug fix in place you get this corrected output:

...\level1\level2
...\level1\level2\level3
...\level1\level2\level3\level4
...\level1\level2\level3\level4\foobar.txt

I also like ajk's answer for conciseness though, as he points out, it is less efficient. The reason it is less efficient, by the way, is because Hill's algorithm stops traversing a subtree when it finds a prune target while ajk's continues. But ajk's answer also suffers from a flaw, one I call the ancestor trap. Consider a path such as this that includes the same path component (i.e. subdir2) twice:

\usr\testdir\subdir2\child\grandchild\subdir2\doc

Set your location somewhere in between, e.g. cd \usr\testdir\subdir2\child, then run ajk's algorithm to filter out the lower subdir2 and you will get no output at all, i.e. it filters out everything because of the presence of subdir2 higher in the path. This is a corner case, though, and not likely to be hit often, so I would not rule out ajk's solution due to this one issue.

Nonetheless, I offer here a third alternative, one that does not have either of the above two bugs. Here is the basic algorithm, complete with a convenience definition for the path or paths to prune--you need only modify $excludeList to your own set of targets to use it:

$excludeList = @("stuff","bin","obj*")
Get-ChildItem -Recurse | % {
    $pathParts = $_.FullName.substring($pwd.path.Length + 1).split("\");
    if ( ! ($excludeList | where { $pathParts -like $_ } ) ) { $_ }
}

My algorithm is reasonably concise but, like ajk's, it is less efficient than Hill's (for the same reason: it does not stop traversing subtrees at prune targets). However, my code has an important advantage over Hill's--it can pipeline! It is therefore amenable to fit into a filter chain to make a custom version of Get-ChildItem while Hill's recursive algorithm, through no fault of its own, cannot. ajk's algorithm can be adapted to pipeline use as well, but specifying the item or items to exclude is not as clean, being embedded in a regular expression rather than a simple list of items that I have used.

I have packaged my tree pruning code into an enhanced version of Get-ChildItem. Aside from my rather unimaginative name--Get-EnhancedChildItem--I am excited about it and have included it in my open source Powershell library. It includes several other new capabilities besides tree pruning. Furthermore, the code is designed to be extensible: if you want to add a new filtering capability, it is straightforward to do. Essentially, Get-ChildItem is called first, and pipelined into each successive filter that you activate via command parameters. Thus something like this...

Get-EnhancedChildItem –Recurse –Force –Svn
    –Exclude *.txt –ExcludeTree doc*,man -FullName -Verbose 

... is converted internally into this:

Get-ChildItem | FilterExcludeTree | FilterSvn | FilterFullName

Each filter must conform to certain rules: accepting FileInfo and DirectoryInfo objects as inputs, generating the same as outputs, and using stdin and stdout so it may be inserted in a pipeline. Here is the same code refactored to fit these rules:

filter FilterExcludeTree()
{
  $target = $_
  Coalesce-Args $Path "." | % {
    $canonicalPath = (Get-Item $_).FullName
    if ($target.FullName.StartsWith($canonicalPath)) {
      $pathParts = $target.FullName.substring($canonicalPath.Length + 1).split("\");
      if ( ! ($excludeList | where { $pathParts -like $_ } ) ) { $target }
    }
  }
} 

The only additional piece here is the Coalesce-Args function (found in this post by Keith Dahlby), which merely sends the current directory down the pipe in the event that the invocation did not specify any paths.

Because this answer is getting somewhat lengthy, rather than go into further detail about this filter, I refer the interested reader to my recently published article on Simple-Talk.com entitled Practical PowerShell: Pruning File Trees and Extending Cmdlets where I discuss Get-EnhancedChildItem at even greater length. One last thing I will mention, though, is another function in my open source library, New-FileTree, that lets you generate a dummy file tree for testing purposes so you can exercise any of the above algorithms. And when you are experimenting with any of these, I recommend piping to % { $_.fullname } as I did in the very first code fragment for more useful output to examine.

In pure Javascript, use: e.preventDefault()

e.preventDefault() is used in jquery but works in javascript.

document.querySelector(".buttonclick").addEventListener("click", 
function(e){

  //some code

  e.preventDefault();
})

This is a slight variation of the above theme but I'm putting here in case others hit this and cannot make sense of it ...as I did.

When using saveXML(), preserveWhiteSpace in the target DOMdocument does not apply to imported nodes (as at PHP 5.6).

Consider the following code:

$dom = new DOMDocument();                               //create a document
$dom->preserveWhiteSpace = false;                       //disable whitespace preservation
$dom->formatOutput = true;                              //pretty print output
$documentElement = $dom->createElement("Entry");        //create a node
$dom->appendChild ($documentElement);                   //append it 
$message = new DOMDocument();                           //create another document
$message->loadXML($messageXMLtext);                     //populate the new document from XML text
$node=$dom->importNode($message->documentElement,true); //import the new document content to a new node in the original document
$documentElement->appendChild($node);                   //append the new node to the document Element
$dom->saveXML($dom->documentElement);                   //print the original document

In this context, the $dom->saveXML(); statement will NOT pretty print the content imported from $message, but content originally in $dom will be pretty printed.

In order to achieve pretty printing for the entire $dom document, the line:

$message->preserveWhiteSpace = false; 

must be included after the $message = new DOMDocument(); line - ie. the document/s from which the nodes are imported must also have preserveWhiteSpace = false.

Maybe your JSON Object is right,but the response that you received is not your valid data.Just like when you connect the invalid WiFi,you may received a strange response < html>.....< /html> that GSON can not parse.

you may need to do some try..catch.. for this strange response to avoid crash.

I faced the same problem when I wanted to run a Rake Task but without running the callbacks for every record I was saving. This worked for me (Rails 5), and it must work for almost every version of Rails:

class MyModel < ApplicationRecord
  attr_accessor :skip_callbacks
  before_create :callback1
  before_update :callback2
  before_destroy :callback3

  private
  def callback1
    return true if @skip_callbacks
    puts "Runs callback1"
    # Your code
  end
  def callback2
    return true if @skip_callbacks
    puts "Runs callback2"
    # Your code
  end
  # Same for callback3 and so on....
end

The way it works is that it just returns true in the first line of the method it skip_callbacks is true, so it doesn't run the rest of the code in the method. To skip callbacks you just need to set skip_callbacks to true before saving, creating, destroying:

rec = MyModel.new() # Or Mymodel.find()
rec.skip_callbacks = true
rec.save

if (isset($_POST['Register']))
    {
        $ErrorArrays = array (); //Empty array for input errors 

        $Input_Username = $_POST['Username'];
        $Input_Password = $_POST['Password'];
        $Input_Confirm = $_POST['ConfirmPass'];
        $Input_Email = $_POST['Email'];

        if (empty($Input_Username))
        {
            $ErrorArrays[] = "Username Is Empty";
        }
        if (empty($Input_Password))
        {
            $ErrorArrays[] = "Password Is Empty";
        }
        if ($Input_Password !== $Input_Confirm)
        {
            $ErrorArrays[] = "Passwords Do Not Match!";
        }
        if (!filter_var($Input_Email, FILTER_VALIDATE_EMAIL))
        {
            $ErrorArrays[] = "Incorrect Email Formatting";
        }

        if (count($ErrorArrays) == 0)
        {
            // No Errors
        }
        else
        {
            foreach ($ErrorArrays AS $Errors)
            {
                echo "<font color='red'><b>".$Errors."</font></b><br>";
            }
        }
    }

?>

    <form method="POST"> 
        Username: <input type='text' name='Username'> <br>
        Password: <input type='password' name='Password'><br>
        Confirm Password: <input type='password' name='ConfirmPass'><br>
        Email: <input type='text' name='Email'> <br><br>

        <input type='submit' name='Register' value='Register'>


    </form> 

This is a very basic PHP Form validation. This could be put in a try block, but for basic reference, I see this fit following our conversation in the comment box.

What this script will do, is process each of the post elements, and act accordingly, for example:

    if (!filter_var($Input_Email, FILTER_VALIDATE_EMAIL))
        {
            $ErrorArrays[] = "Incorrect Email Formatting";
        }

This will check:

if $Input_Email is not a valid email. If this is not a valid E-mail, then a message will get added to a empty array.

Further down the script, you will see:

    if (count($ErrorArrays) == 0)
    {
        // No Errors
    }
    else
    {
        foreach ($ErrorArrays AS $Errors)
        {
            echo "<font color='red'><b>".$Errors."</font></b><br>";
        }
    }

Basically. if the array count is not 0, errors have been found. Then the script will print out the errors.

Remember, this is a reference based on our conversation in the comment box, and should be used as such.

To expand on @Dmitiri Algazin 's answer: settings for individual languages are overridden by the general setting

Preferences -> Code Style -> Detect and use existing file indents for editing

So if you are wondering why your new settings are being ignored after changing your settings for a specific language, there is a chance this checkbox is ticked.

As a side note; changing any default settings automamagically creates a settings profile clone (i.e. Default(1)) which I assume is in place so that the default IDE settings are never overwritten.

It is a little confusing at first, really, whether editing Default settings or Project Settings is going to have any effect on your project, since you can select Default from the drop down menu and then edit from there.

If you don't want to keep seeing random clones of Default populating your settings profiles, edit the Project Settings directly.

I ran into this when checking on a null or empty string

if (x == NULL || x == '') {

changed it to

if (is.null(x) || x == '') {

In RedHat 7, we need to allow the specific port before running the Jupiter command. Say the port is 8080.

iptables -I INPUT 1 -p tcp --dport 8080 -j ACCEPT

Then we can run it normally. For instance, using:

jupyter notebook --ip 0.0.0.0 --no-browser --port=8080 --allow-root

or whatever you like.

To setup GruntJS build here is the steps:

1. Make sure you have setup your package.json or setup new one:

   npm init
   

2. Install Grunt CLI as global:

   npm install -g grunt-cli
   

3. Install Grunt in your local project:

   npm install grunt --save-dev
   

4. Install any Grunt Module you may need in your build process. Just for sake of this sample I will add Concat module for combining files together:

   npm install grunt-contrib-concat --save-dev
   

5. Now you need to setup your Gruntfile.js which will describe your build process. For this sample I just combine two JS files file1.js and file2.js in the js folder and generate app.js:

   module.exports = function(grunt) {
   
       // Project configuration.
       grunt.initConfig({
           concat: {
               "options": { "separator": ";" },
               "build": {
                   "src": ["js/file1.js", "js/file2.js"],
                   "dest": "js/app.js"
               }
           }
       });
   
       // Load required modules
       grunt.loadNpmTasks('grunt-contrib-concat');
   
       // Task definitions
       grunt.registerTask('default', ['concat']);
   };
   

6. Now you'll be ready to run your build process by following command:

   grunt
   

I hope this give you an idea how to work with GruntJS build.

NOTE:

You can use grunt-init for creating Gruntfile.js if you want wizard-based creation instead of raw coding for step 5.

To do so, please follow these steps:

npm install -g grunt-init
git clone https://github.com/gruntjs/grunt-init-gruntfile.git ~/.grunt-init/gruntfile
grunt-init gruntfile

For Windows users: If you are using cmd.exe you need to change ~/.grunt-init/gruntfile to %USERPROFILE%\.grunt-init\. PowerShell will recognize the ~ correctly.

If you have got frustrated by setting the path for the python just download the new version of python uninstall the older version of the python and while installing the new version it will ask whether to set path mark that and install

its the best way

Try this code:

Dim lastrow As Long
lastrow = Cells(Rows.Count, 2).End(xlUp).Row
Range("A3:D" & lastrow).Sort key1:=Range("B3:B" & lastrow), _
   order1:=xlAscending, Header:=xlNo

if you are run this command

 debian@debian:~$  /usr/share/tomcat7/bin/shutdown.sh
 then your server will not stop and you will get o/p like that you provided if you use in 
 super user mode then effect will appear o/p will come like this

 debian@debian:~$ sudo /usr/share/tomcat7/bin/shutdown.sh
 [sudo] password for debian: 
 Using CATALINA_BASE:   /var/lib/tomcat
 Using CATALINA_HOME:   /var/lib/tomcat
 Using CATALINA_TMPDIR: /var/lib/tomcat/temp
 Using JRE_HOME:        /usr/lib/jvm/java-1.6.0-openjdk
 Using CLASSPATH:   /var/lib/tomcat/bin/bootstrap.jar:/var/lib/tomcat/bin/tomcat-juli.jar

# . /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh  

#  sqlplus /nolog  

SQL> connect sys/password as sysdba                                           

SQL>  EXEC DBMS_XDB.SETLISTENERLOCALACCESS(FALSE);  

SQL> CONNECT sys/password@hostname:1521 as sysdba

In my experience, Oracle is very good at pushing simple predicates around. The following test was made on Oracle 11.2. I'm fairly certain it produces the same execution plan on all releases of 10g as well.

(Please people, feel free to leave a comment if you run an earlier version and tried the following)

create table table1(a number, b number);
create table table2(a number, b number);

explain plan for
select *
  from (select a,b from table1
        union 
        select a,b from table2
       )
 where a > 1;

select * 
  from table(dbms_xplan.display(format=>'basic +predicate'));

PLAN_TABLE_OUTPUT
---------------------------------------
| Id  | Operation            | Name   |
---------------------------------------
|   0 | SELECT STATEMENT     |        |
|   1 |  VIEW                |        |
|   2 |   SORT UNIQUE        |        |
|   3 |    UNION-ALL         |        |
|*  4 |     TABLE ACCESS FULL| TABLE1 |
|*  5 |     TABLE ACCESS FULL| TABLE2 |
---------------------------------------

Predicate Information (identified by operation id):
---------------------------------------------------    
   4 - filter("A">1)
   5 - filter("A">1)

As you can see at steps (4,5), the predicate is pushed down and applied before the sort (union).

I couldn't get the optimizer to push down an entire sub query such as

 where a = (select max(a) from empty_table)

or a join. With proper PK/FK constraints in place it might be possible, but clearly there are limitations :)

// let timeObject = new Date();
// let milliseconds= 10 * 1000; // 10 seconds = 10000 milliseconds
timeObject = new Date(timeObject.getTime() + milliseconds);

Here is what needs to go in D1: =VLOOKUP(C1, $A$1:$B$4, 2, FALSE)

You should then be able to copy this down to the rest of column D.

Try with this

->groupBy('state_id','locality')
  ->havingRaw('count > 1 ')
  ->having('items.name','LIKE',"%$keyword%")
  ->orHavingRaw('brand LIKE ?',array("%$keyword%"))

You can use Nodist for this purpose. Download it from here.

Usage:

nodist                         List all installed node versions.
nodist list
nodist ls

nodist <version>               Use the specified node version globally (downloads the executable, if necessary).
nodist latest                  Use the latest available node version globally (downloads the executable, if necessary).

nodist add <version>           Download the specified node version.

More Nodist commands here

This does the job without any library. Used recursion and it is Indian style. -- Ravi.

def spellNumber(no):
    # str(no) will result in  56.9 for 56.90 so we used the method which is given below.
    strNo = "%.2f" %no
    n = strNo.split(".")
    rs = numberToText(int(n[0])).strip()
    ps =""
    if(len(n)>=2):
        ps = numberToText(int(n[1])).strip()
        rs = "" + ps+ " paise"  if(rs.strip()=="") else  (rs + " and " + ps+ " paise").strip()
    return rs
print(spellNumber(0.67))
print(spellNumber(5858.099))
print(spellNumber(5083754857380.50))    

def numberToText(no):
    ones = " ,one,two,three,four,five,six,seven,eight,nine,ten,eleven,tweleve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,twenty".split(',')
    tens = "ten,twenty,thirty,fourty,fifty,sixty,seventy,eighty,ninety".split(',')
    text = ""
    if len(str(no))<=2:
        if(no<20):
            text = ones[no]
        else:
            text = tens[no//10-1] +" " + ones[(no %10)]
    elif len(str(no))==3:
        text = ones[no//100] +" hundred " + numberToText(no- ((no//100)* 100))
    elif len(str(no))<=5:
        text = numberToText(no//1000) +" thousand " + numberToText(no- ((no//1000)* 1000))
    elif len(str(no))<=7:
        text = numberToText(no//100000) +" lakh " + numberToText(no- ((no//100000)* 100000))
    else:
        text = numberToText(no//10000000) +" crores " + numberToText(no- ((no//10000000)* 10000000))
    return text

The Swifty way is to use the new UIAlertController and closures:

    // Create the alert controller
    let alertController = UIAlertController(title: "Title", message: "Message", preferredStyle: .Alert)

    // Create the actions
    let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.Default) {
        UIAlertAction in
        NSLog("OK Pressed")
    }
    let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) {
        UIAlertAction in
        NSLog("Cancel Pressed")
    }

    // Add the actions
    alertController.addAction(okAction)
    alertController.addAction(cancelAction)

    // Present the controller
    self.presentViewController(alertController, animated: true, completion: nil)

Swift 3:

    // Create the alert controller
    let alertController = UIAlertController(title: "Title", message: "Message", preferredStyle: .alert)

    // Create the actions
    let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.default) {
        UIAlertAction in
        NSLog("OK Pressed")
    }
    let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel) {
        UIAlertAction in
        NSLog("Cancel Pressed")
    }

    // Add the actions
    alertController.addAction(okAction)
    alertController.addAction(cancelAction)

    // Present the controller
    self.present(alertController, animated: true, completion: nil)

An index is used to speed up the performance of queries. It does this by reducing the number of database data pages that have to be visited/scanned.

In SQL Server, a clustered index determines the physical order of data in a table. There can be only one clustered index per table (the clustered index IS the table). All other indexes on a table are termed non-clustered.

• SQL Server Index Basics

• SQL Server Indexes: The Basics

• SQL Server Indexes

• Index Basics

• Index (wiki)

I tried:

ps aux | grep -w Z   # returns the zombies pid
ps o ppid {returned pid from previous command}   # returns the parent
kill -1 {the parent id from previous command}

this will work :)

https://developer.mozilla.org/en/CSS/vertical-align

<table style="height: 275px; width: 188px">
    <tr>
        <td style="width: 259px; vertical-align:top">
            main page
        </td>
    </tr>
</table>

?

This issue arises due to updates, You can resolve this by downgrading the gradle used from com.android.tools.build:gradle:3.2.1 to a previous gradle like com.android.tools.build:gradle:3.0.0 or anything older than the current one

For more information about .scrollHeight property refer to the docs:

The Element.scrollHeight read-only attribute is a measurement of the height of an element's content, including content not visible on the screen due to overflow. The scrollHeight value is equal to the minimum clientHeight the element would require in order to fit all the content in the viewpoint without using a vertical scrollbar. It includes the element padding but not its margin.

Personally I feel that the query string method is more reliable than trying to set headers on the server - there's no guarantee that a proxy or browser won't just cache it anyway (some browsers are worse than others - naming no names).

I usually use Math.random() but I don't see anything wrong with using the date (you shouldn't be doing AJAX requests fast enough to get the same value twice).

If the library is included in the VS project, you can check .cproj file, e.g.:

<ItemGroup>
    <Reference Include="Microsoft.Dynamic, Version=1.1.0.20, Culture=neutral, PublicKeyToken=7f709c5b713576e1, processorArchitecture=MSIL">
...

if you are adding multiple items to the list use this:

mAdapter.notifyItemRangeInserted(startPosition, itemcount);

This notify any registered observers that the currently reflected itemCount items starting at positionStart have been newly inserted. The item previously located at positionStart and beyond can now be found starting at position positinStart+itemCount

existing item in the dataset still considered up to date.

I also had this problem first time.

In the Connect to Server dialog box, verify the default settings, and then click Connect. To connect, the Server name box must contain the name of the computer where SQL Server is installed. If the Database Engine is a named instance, the Server name box should also contain the instance name in the format: computer_name\instance_name.

So for example i solved the problem like this: I typed in the server name: Alex-PC\SQLEXPRESS

Then it should work. for more see http://technet.microsoft.com/en-us/library/25ffaea6-0eee-4169-8dd0-1da417c28fc6

Assuming the simplest option (installing rsync on the remote host) isn't feasible, you can use sshfs to mount the remote locally, and rsync from the mount directory. That way you can use all the options rsync offers, for example --exclude.

Something like this should do:

sshfs user@server: sshfsdir
rsync --recursive --exclude=whatever sshfsdir/path/on/server /where/to/store

Note that the effectiveness of rsync (only transferring changes, not everything) doesn't apply here. This is because for that to work, rsync must read every file's contents to see what has changed. However, as rsync runs only on one host, the whole file must be transferred there (by sshfs). Excluded files should not be transferred, however.

Here's a good one:

Set line-height equal to whatever the height is; works like a charm!

E.g:

li {
    height: 30px;
    line-height: 30px;
}

Old question, but I had this issue as well, so after assigning the Text property, calling Refresh() will update the text.

Label1.Text = "Du har nu lånat filmen:" + test;
Refresh();

Convert file format to png

string newfilename , 
 string filename = "~/Photo/"  + lbl_ImgPath.Text.ToString();/*get filename from specific path where we store image*/
 string newfilename = Path.ChangeExtension(filename, ".png");/*Convert file format from jpg to png*/

put this line in parent construct : $this->load->database();

function  __construct() {
    parent::__construct();
    $this->load->library('lib_name');
    $model=array('model_name');
    $this->load->model($model);
    $this->load->database();
}

this way.. it should work..

With pure JavaScript:

console.log(window.location.href)

Using Angular:

this.router.url

import { Component } from '@angular/core';
import { Router } from '@angular/router';

@Component({
    template: 'The href is: {{href}}'
    /*
    Other component settings
    */
})
export class Component {
    public href: string = "";

    constructor(private router: Router) {}

    ngOnInit() {
        this.href = this.router.url;
        console.log(this.router.url);
    }
}

The plunkr is here: https://plnkr.co/edit/0x3pCOKwFjAGRxC4hZMy?p=preview

pkill is the easiest command line utility

pkill -f node

or

pkill -f nodejs

whatever name the process runs as for your os

The correct way of getting computed style is waiting till page is rendered. It can be done in the following manner. Pay attention to timeout on getting auto values.

function getStyleInfo() {
    setTimeout(function() {
        const style = window.getComputedStyle(document.getElementById('__root__'));
        if (style.height == 'auto') {
            getStyleInfo();
        }
        // IF we got here we can do actual business logic staff
        console.log(style.height, style.width);
    }, 100);
};

window.onload=function() { getStyleInfo(); };

If you use just

window.onload=function() {
    var computedStyle = window.getComputedStyle(document.getElementById('__root__'));
}

you can get auto values for width and height because browsers does not render till full load is performed.

I don't have enough rep to comment here, so I'm submitting a new answer to improve on dogbane's answer. The dot . in the regexp

[[ sed-4.2.2.tar.bz2 =~ tar.bz2$ ]] && echo matched

will actually match any character, not only the literal dot between 'tar.bz2', for example

[[ sed-4.2.2.tar4bz2 =~ tar.bz2$ ]] && echo matched
[[ sed-4.2.2.tar§bz2 =~ tar.bz2$ ]] && echo matched

or anything that doesn't require escaping with '\'. The strict syntax should then be

[[ sed-4.2.2.tar.bz2 =~ tar\.bz2$ ]] && echo matched

or you can go even stricter and also include the previous dot in the regex:

[[ sed-4.2.2.tar.bz2 =~ \.tar\.bz2$ ]] && echo matched

or_() function can be useful in case of unknown number of OR query components.

For example, let's assume that we are creating a REST service with few optional filters, that should return record if any of filters return true. On the other side, if parameter was not defined in a request, our query shouldn't change. Without or_() function we must do something like this:

query = Book.query
if filter.title and filter.author:
    query = query.filter((Book.title.ilike(filter.title))|(Book.author.ilike(filter.author)))
else if filter.title:
    query = query.filter(Book.title.ilike(filter.title))
else if filter.author:
    query = query.filter(Book.author.ilike(filter.author))

With or_() function it can be rewritten to:

query = Book.query
not_null_filters = []
if filter.title:
    not_null_filters.append(Book.title.ilike(filter.title))
if filter.author:
    not_null_filters.append(Book.author.ilike(filter.author))

if len(not_null_filters) > 0:
    query = query.filter(or_(*not_null_filters))

Read these:

1. Return result to onActivityResult()
2. Fetching Result from a called activity - Android Tutorial for Beginners

These articles will help you understand how to pass data between two activities in Android.

<!DOCTYPE html>_x000D_
<html>_x000D_
  <head>_x000D_
    <title>Center</title>_x000D_
  </head>_x000D_
  <body>_x000D_
_x000D_
    <div style="text-align: center;">_x000D_
      <div style="width: 500px; margin: 0 auto; background: #000; color: #fff;">This DIV is centered</div>_x000D_
    </div>_x000D_
_x000D_
  </body>_x000D_
</html>

Tested and worked in IE, Firefox, Chrome, Safari and Opera. I did not test IE6. The outer text-align is needed for IE. Other browsers (and IE9?) will work when you give the DIV margin (left and right) value of auto. Margin "0 auto" is a shorthand for margin "0 auto 0 auto" (top right bottom left).

Note: the text is also centered inside the inner DIV, if you want it to remain on the left side just specify text-align: left; for the inner DIV.

Edit: IE 6, 7, 8 and 9 running on the Standards Mode will work with margins set to auto.

I found this larger function in the Chyrp code:

/**
 * Function: sanitize
 * Returns a sanitized string, typically for URLs.
 *
 * Parameters:
 *     $string - The string to sanitize.
 *     $force_lowercase - Force the string to lowercase?
 *     $anal - If set to *true*, will remove all non-alphanumeric characters.
 */
function sanitize($string, $force_lowercase = true, $anal = false) {
    $strip = array("~", "`", "!", "@", "#", "$", "%", "^", "&", "*", "(", ")", "_", "=", "+", "[", "{", "]",
                   "}", "\\", "|", ";", ":", "\"", "'", "‘", "’", "“", "”", "–", "—",
                   "—", "–", ",", "<", ".", ">", "/", "?");
    $clean = trim(str_replace($strip, "", strip_tags($string)));
    $clean = preg_replace('/\s+/', "-", $clean);
    $clean = ($anal) ? preg_replace("/[^a-zA-Z0-9]/", "", $clean) : $clean ;
    return ($force_lowercase) ?
        (function_exists('mb_strtolower')) ?
            mb_strtolower($clean, 'UTF-8') :
            strtolower($clean) :
        $clean;
}

and this one in the wordpress code

/**
 * Sanitizes a filename replacing whitespace with dashes
 *
 * Removes special characters that are illegal in filenames on certain
 * operating systems and special characters requiring special escaping
 * to manipulate at the command line. Replaces spaces and consecutive
 * dashes with a single dash. Trim period, dash and underscore from beginning
 * and end of filename.
 *
 * @since 2.1.0
 *
 * @param string $filename The filename to be sanitized
 * @return string The sanitized filename
 */
function sanitize_file_name( $filename ) {
    $filename_raw = $filename;
    $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}");
    $special_chars = apply_filters('sanitize_file_name_chars', $special_chars, $filename_raw);
    $filename = str_replace($special_chars, '', $filename);
    $filename = preg_replace('/[\s-]+/', '-', $filename);
    $filename = trim($filename, '.-_');
    return apply_filters('sanitize_file_name', $filename, $filename_raw);
}

Update Sept 2012

Alix Axel has done some incredible work in this area. His phunction framework includes several great text filters and transformations.

• Unaccent
• Slug
• Filter

My own working solution:

Calendar c = Calendar.getInstance();

String sDate = c.get(Calendar.YEAR) + "-" 
+ c.get(Calendar.MONTH)
+ "-" + c.get(Calendar.DAY_OF_MONTH) 
+ " at " + c.get(Calendar.HOUR_OF_DAY) 
+ ":" + c.get(Calendar.MINUTE);

Hope this helps!

Using width/height on inline elements is not always a good idea. You can use display: inline-block instead

If you are using functional component please use this as below.

const [chatHistory, setChatHistory] = useState([]); // define the state

const chatHistoryList = [...chatHistory, {'from':'me', 'message':e.target.value}]; // new array need to update
setChatHistory(chatHistoryList); // update the state

You can use a combination of other LINQ methods to handle not matching condition:

var res = dictionary.Where(x => x.Value.ID == someID)
                    .Select(x => x.Value.DisplayName)
                    .DefaultIfEmpty("Unknown")
                    .First();

You want to use sections when you want a bit of code/content to render in a placeholder that has been defined in a layout page.

In the specific example you linked, he has defined the RenderSection in the _Layout.cshtml. Any view that uses that layout can define an @section of the same name as defined in Layout, and it will replace the RenderSection call in the layout.

Perhaps you're wondering how we know Index.cshtml uses that layout? This is due to a bit of MVC/Razor convention. If you look at the dialog where he is adding the view, the box "Use layout or master page" is checked, and just below that it says "Leave empty if it is set in a Razor _viewstart file". It isn't shown, but inside that _ViewStart.cshtml file is code like:

@{
    Layout = "~/Views/Shared/_Layout.cshtml";
}

The way viewstarts work is that any cshtml file within the same directory or child directories will run the ViewStart before it runs itself.

Which is what tells us that Index.cshtml uses Shared/_Layout.cshtml.

In Rails 4.1.0, I have faced problem with saving latitude and longitude to MySql database. It can't save large fraction number with float data type. And I change the data type to decimal and working for me.

  def change
    change_column :cities, :latitude, :decimal, :precision => 15, :scale => 13
    change_column :cities, :longitude, :decimal, :precision => 15, :scale => 13
  end

There is a easy solution in CSS. For example:

HTML

<p class="parent">
    <span class="children"> Foo </span>
    <span class="children"> Bar </span>
</p>

CSS

.parent {
    letter-spacing: -.31em;
    *letter-spacing: normal;
    *word-spacing: -.43em;
}
.children {
    display: inline-block;
    *display: inline;
    zoom: 1;
    letter-spacing: normal;
    word-spacing: normal;
}

In my opinion writing font-size: 0 is not safe when you use it in a project like em, so I prefer purecss' solution.

You can check this framework in this link purecss. Enjoy :)

.row {_x000D_
    letter-spacing: -.31em;_x000D_
    *letter-spacing: normal;_x000D_
    *word-spacing: -.43em;_x000D_
_x000D_
    /* For better view */_x000D_
    background: #f9f9f9;_x000D_
    padding: 1em .5em;_x000D_
}_x000D_
_x000D_
.col {_x000D_
    display: inline-block;_x000D_
    *display: inline;_x000D_
    zoom: 1;_x000D_
    letter-spacing: normal;_x000D_
    word-spacing: normal;_x000D_
_x000D_
    /* For better view */_x000D_
    padding: 16px;_x000D_
    background: #dbdbdb;_x000D_
    border: 3px #bdbdbd solid;_x000D_
    box-sizing: border-box;_x000D_
    width: 25%;_x000D_
}

<div class="row">_x000D_
_x000D_
    <div class="col">1</div>_x000D_
    <div class="col">2</div>_x000D_
    <div class="col">3</div>_x000D_
    <div class="col">4</div>_x000D_
_x000D_
</div>

I was facing same issue. I did not put @ResponseBody since I was using @RestController. But still I was getting error because I did not put the getter/setter method for the Company class. So after putting the getter/setter my problem was resolved.

To get the details about the error I had to add ASPNETCORE_ENVIRONMENT environment variable for the corresponding Application Pool system.applicationHost/applicationPools.

Note: the web application in my case was ASP.NET Core 2 web application hosted on IIS 10. It can be done via Configuration Editor in IIS Manager (see Editing Collections with Configuration Editor to figure out where to find this editor in IIS Manager).

There is bug in MySQL 5.6 version. Even mysqld show as :

    Default options are read from the following files in the given order:
C:\Windows\my.ini C:\Windows\my.cnf C:\my.ini C:\my.cnf c:\Program Files (x86)\MySQL\MySQL Server 5.6\my.ini c:\Program Files (x86)\MySQL\MySQL Server 5.6\my.cnf 

Realy settings are reading in following order :

    Default options are read from the following files in the given order:
C:\ProgramData\MySQL\MySQL Server 5.6\my.ini C:\Windows\my.ini C:\Windows\my.cnf C:\my.ini C:\my.cnf c:\Program Files (x86)\MySQL\MySQL Server 5.6\my.ini c:\Program Files (x86)\MySQL\MySQL Server 5.6\my.cnf

Check file: "C:\ProgramData\MySQL\MySQL Server 5.6\my.ini"

Hope it help somebody.

I was facing similar issue when i created a new workspace in STS. Project => right click => Maven option was also missing. I tried this below steps and it worked.. hope it helps someone else. Project => right click => configure => convert to maven project and then the option to run on server appeared.

Thanks to chikka.anddev and Alex Cohn in Kotlin it is:

text.setOnEditorActionListener { v, actionId, event ->
    if (actionId == EditorInfo.IME_ACTION_DONE ||
        event?.action == KeyEvent.ACTION_DOWN && event.keyCode == KeyEvent.KEYCODE_ENTER) {
        doSomething()
        true
    } else {
        false
    }
}

Here I check for Enter key, because it returns EditorInfo.IME_NULL instead of IME_ACTION_DONE.

See also Android imeOptions="actionDone" not working. Add android:singleLine="true" in the EditText.

The short form(a += 1) has the option to modify a in-place , instead of creating a new object representing the sum and rebinding it back to the same name(a = a + 1).So,The short form(a += 1) is much efficient as it doesn't necessarily need to make a copy of a unlike a = a + 1.

Also even if they are outputting the same result, notice they are different because they are separate operators: + and +=

You are going to have some problems (what if you have this string: "vs @ apples" for instance) using this method of sepparating, but if we start by stating that you have thought about that and have fixed all of those possible collisions, you could just replace all occurences of $delimiter[1] to $delimiter[n] with $delimiter[0], and then split on that first one?

If you have simple dropdown like:

<select name="status" id="status">
    <option value="1">Active</option>
    <option value="0">Inactive</option>
</select>

Then you can use this code for getting value:

$(function(){

 $("#status").change(function(){
     var status = this.value;
     alert(status);
   if(status=="1")
     $("#icon_class, #background_class").hide();// hide multiple sections
  });

});

You can find those maven properties in the super pom.

You find the jar here:

${M2_HOME}/lib/maven-model-builder-3.0.3.jar

Open the jar with 7-zip or some other archiver (or use the jar tool).

Navigate to

org/apache/maven/model

There you'll find the pom-4.0.0.xml.

It contains all those "short cuts":

<project>
    ...
    <build>
        <directory>${project.basedir}/target</directory>
        <outputDirectory>${project.build.directory}/classes</outputDirectory>
        <finalName>${project.artifactId}-${project.version}</finalName>
        <testOutputDirectory>${project.build.directory}/test-classes</testOutputDirectory>
        <sourceDirectory>${project.basedir}/src/main/java</sourceDirectory>
        <scriptSourceDirectory>src/main/scripts</scriptSourceDirectory>
        <testSourceDirectory>${project.basedir}/src/test/java</testSourceDirectory>
        <resources>
            <resource>
                <directory>${project.basedir}/src/main/resources</directory>
            </resource>
        </resources>
        <testResources>
            <testResource>
                <directory>${project.basedir}/src/test/resources</directory>
            </testResource>
        </testResources>
        ...
    </build>
    ...
</project>

Update

After some lobbying I am adding a link to the pom-4.0.0.xml. This allows you to see the properties without opening up the local jar file.

python 3 https://docs.python.org/3.5/howto/sorting.html#the-old-way-using-the-cmp-parameter

from functools import cmp_to_key

def custom_compare(x, y):
    # custom comparsion of x[0], x[1] with y[0], y[1]
    return 0

sorted(entries, key=lambda e: (cmp_to_key(custom_compare)(e[0]), e[1]))

Short explanation:

If an algorithm is of T(g(n)), it means that the running time of the algorithm as n (input size) gets larger is proportional to g(n).

If an algorithm is of O(g(n)), it means that the running time of the algorithm as n gets larger is at most proportional to g(n).

Normally, even when people talk about O(g(n)) they actually mean T(g(n)) but technically, there is a difference.

More technically:

O(n) represents upper bound. T(n) means tight bound. O(n) represents lower bound.

f(x) = T(g(x)) iff f(x) = O(g(x)) and f(x) = O(g(x))

Basically when we say an algorithm is of O(n), it's also O(n²), O(n^1000000), O(2ⁿ), ... but a T(n) algorithm is not T(n²).

In fact, since f(n) = T(g(n)) means for sufficiently large values of n, f(n) can be bound within c₁g(n) and c₂g(n) for some values of c₁ and c₂, i.e. the growth rate of f is asymptotically equal to g: g can be a lower bound and and an upper bound of f. This directly implies f can be a lower bound and an upper bound of g as well. Consequently,

f(x) = T(g(x)) iff g(x) = T(f(x))

Similarly, to show f(n) = T(g(n)), it's enough to show g is an upper bound of f (i.e. f(n) = O(g(n))) and f is a lower bound of g (i.e. f(n) = O(g(n)) which is the exact same thing as g(n) = O(f(n))). Concisely,

f(x) = T(g(x)) iff f(x) = O(g(x)) and g(x) = O(f(x))

There are also little-oh and little-omega (?) notations representing loose upper and loose lower bounds of a function.

To summarize:

f(x) = O(g(x)) (big-oh) means that the growth rate of f(x) is asymptotically less than or equal to to the growth rate of g(x).

f(x) = O(g(x)) (big-omega) means that the growth rate of f(x) is asymptotically greater than or equal to the growth rate of g(x)

f(x) = o(g(x)) (little-oh) means that the growth rate of f(x) is asymptotically less than the growth rate of g(x).

f(x) = ?(g(x)) (little-omega) means that the growth rate of f(x) is asymptotically greater than the growth rate of g(x)

f(x) = T(g(x)) (theta) means that the growth rate of f(x) is asymptotically equal to the growth rate of g(x)

For a more detailed discussion, you can read the definition on Wikipedia or consult a classic textbook like Introduction to Algorithms by Cormen et al.

For SQL 2005,

EXEC sp_MSForEachTable 'TRUNCATE TABLE ?'

Couple more links for 2000 and 2005/2008..

You can of course format the result of current_timestamp(). Please have a look at the various formatting functions in the official documentation.

Here is how it works for me with no Servlet use.

Let's say I am trying to access web.xml in project/WebContent/WEB-INF/web.xml

1. In project property Source-tab add source folder by pointing to the parent container for WEB-INF folder (in my case WebContent )

2. Now let's use class loader:

   InputStream inStream = class.getClass().getClassLoader().getResourceAsStream("Web-INF/web.xml")
   

If you change the format of the cells to General then this will show the date value of a cell as behind the scenes Excel saves a date as the number of days since 01/01/1900

If your date is text and you need to convert it then DATEVALUE will do this:

TCP keepalive and HTTP keepalive are very different concepts. In TCP, the keepalive is the administrative packet sent to detect stale connection. In HTTP, keepalive means the persistent connection state.

This is from TCP specification,

Keep-alive packets MUST only be sent when no data or acknowledgement packets have been received for the connection within an interval. This interval MUST be configurable and MUST default to no less than two hours.

As you can see, the default TCP keepalive interval is too long for most applications. You might have to add keepalive in your application protocol.

I encountered this error when I had a row.names="id" (per the tutorial) with a column named "id".

During loop, return nothing when certain properties/keys are encountered and continue with the rest:

const loop = product =>
Object.keys(product).map(key => {
    if (key === "_id" || key === "__v") {
        return; 
    }
    return (
        <ul className="list-group">
            <li>
                {product[key]}
                <span>
                    {key}
                </span>
            </li>
        </ul>
    );
});

Classic mode (the only mode in IIS6 and below) is a mode where IIS only works with ISAPI extensions and ISAPI filters directly. In fact, in this mode, ASP.NET is just an ISAPI extension (aspnet_isapi.dll) and an ISAPI filter (aspnet_filter.dll). IIS just treats ASP.NET as an external plugin implemented in ISAPI and works with it like a black box (and only when it's needs to give out the request to ASP.NET). In this mode, ASP.NET is not much different from PHP or other technologies for IIS.

Integrated mode, on the other hand, is a new mode in IIS7 where IIS pipeline is tightly integrated (i.e. is just the same) as ASP.NET request pipeline. ASP.NET can see every request it wants to and manipulate things along the way. ASP.NET is no longer treated as an external plugin. It's completely blended and integrated in IIS. In this mode, ASP.NET HttpModules basically have nearly as much power as an ISAPI filter would have had and ASP.NET HttpHandlers can have nearly equivalent capability as an ISAPI extension could have. In this mode, ASP.NET is basically a part of IIS.

I use the CellContentClick event, which makes sure the user clicked the checkbox. It DOES fire multiple times even if the user stays in the same cell. The one issue is that the Value does not get updated, and always returns "false" for unchecked. The trick is to use the .EditedFormattedValue property of the cell instead of the Value property. The EditedFormattedValue will track with the check mark and is what one wishes the Value had in it when the CellContentClick is fired.

No need for a timer, no need for any fancy stuff, just use CellContentClick event and inspect the EditedFormattedValue to tell what state the checkbox is going into / just went into. If EditedFormattedValue = true, the checkbox is getting checked.

This is a bit circuitous because touch doesn't take a raw time_t value, but it should do the job pretty safely in a script. (The -r option to date is present in MacOS X; I've not double-checked GNU.) The 'time' variable could be avoided by writing the command substitution directly in the touch command line.

time=$(date -r 1312603983 '+%Y%m%d%H%M.%S')
marker=/tmp/marker.$$
trap "rm -f $marker; exit 1" 0 1 2 3 13 15
touch -t $time $marker
find . -type f -newer $marker
rm -f $marker
trap 0

Code Snippet to convert SQL PreparedStaments with the list of arguments. It works for me

  /**
         * 
         * formatQuery Utility function which will convert SQL
         * 
         * @param sql
         * @param arguments
         * @return
         */
        public static String formatQuery(final String sql, Object... arguments) {
            if (arguments != null && arguments.length <= 0) {
                return sql;
            }
            String query = sql;
            int count = 0;
            while (query.matches("(.*)\\?(.*)")) {
                query = query.replaceFirst("\\?", "{" + count + "}");
                count++;
            }
            String formatedString = java.text.MessageFormat.format(query, arguments);
            return formatedString;
        }

<input style="font-size:25px;" type="text"/>

The above code changes the font size to 25 pixels.

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.

Add a margin to your li tags. That will create space between the li and you can use line-height to set the spacing to the text within the li tags.

Please Search Google given to the world by Larry Page and Sergey Brin.

BufferedWriter out = null;

try {
    FileWriter fstream = new FileWriter("out.txt", true); //true tells to append data.
    out = new BufferedWriter(fstream);
    out.write("\nsue");
}

catch (IOException e) {
    System.err.println("Error: " + e.getMessage());
}

finally {
    if(out != null) {
        out.close();
    }
}

Remove NodeJs and npm in your system and reinstall it by following commands

Uninlstallation

sudo apt remove nodejs
sudo apt remove npm

Fresh Installation

sudo apt install nodejs
sudo apt install npm

Configuration optional, in some cases users may face permission errors.

1. user defined directory where npm will install packages

   mkdir ~/.npm-global

2. configure npm

   npm config set prefix '~/.npm-global'

3. add directory to path

   echo 'export PATH=~/.npm-global/bin:$PATH' >> ~/.profile

4. refresh path for the current session

   source ~/.profile

5. cross-check npm and node modules installed successfully in our system

   node -v
npm -v

Installation of npx

sudo npm i -g npx
npx -v

Well-done we are ready to go... now you can easily use npx anywhere in your system.

I'm a bit late it seems to be, but...

a='hello'
print list(a)
# ['h','e','l','l', 'o']

The only way to remove the ADT plugin from Eclipse is to go to Help > About Eclipse/About ADT > Installation Details.

Select a plug-in you want to uninstall, then click Uninstall... button at the bottom.

If you cannot remove ADT from this location, then your best option is probably to start fresh with a clean Eclipse install.

You have to initialize the datepicker before calling a datepicker method

Here is a

Working JSFiddle.

$("#mydate").datepicker().datepicker("setDate", new Date());_x000D_
//-initialization--^          ^-- method invokation

<link href="https://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" rel="stylesheet" />_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://code.jquery.com/ui/1.9.2/jquery-ui.js"></script>_x000D_
<input type="text" id="mydate" />

_{P.S: This assumes that you have the correct date set in your computer}

AWS EC2 install running python34:

sudo yum install python34-devel

I hit this question looking for how to run batch scripts during user logon on a standalone windows server (workgroup not in domain). I found the answer in using group policy.

1. gpedit.msc
2. user configuration->administrative templates->system->logon->run these programs at user logon
3. add batch scripts.
4. you can add them using cmd /k mybatchfile.cmd if you want the command window to stay (on desktop) after batch script have finished.
5. gpupdate - to update the group policy.

The ideal way is not to use ioutil.ReadAll, but rather use a decoder on the reader directly. Here's a nice function that gets a url and decodes its response onto a target structure.

var myClient = &http.Client{Timeout: 10 * time.Second}

func getJson(url string, target interface{}) error {
    r, err := myClient.Get(url)
    if err != nil {
        return err
    }
    defer r.Body.Close()

    return json.NewDecoder(r.Body).Decode(target)
}

Example use:

type Foo struct {
    Bar string
}

func main() {
    foo1 := new(Foo) // or &Foo{}
    getJson("http://example.com", foo1)
    println(foo1.Bar)

    // alternately:

    foo2 := Foo{}
    getJson("http://example.com", &foo2)
    println(foo2.Bar)
}

You should not be using the default *http.Client structure in production as this answer originally demonstrated! (Which is what http.Get/etc call to). The reason is that the default client has no timeout set; if the remote server is unresponsive, you're going to have a bad day.

If you want to pass the Dictionary keys collection into one method argument.

List<string> lstKeys = Dict.Keys;
Methodname(lstKeys);
-------------------
void MethodName(List<String> lstkeys)
{
    `enter code here`
    //Do ur task
}

If we use tMOdel.setRowCount(0); we can get Empty table.

DefaultTableModel tMOdel = (DefaultTableModel) jtableName.getModel();
tMOdel.setRowCount(0);

Multiline comment in django templates use as follows ex: for .html etc.

{% comment %} All inside this tags are treated as comment {% endcomment %}

If you're in Rails, .blank? should be the method you are looking for:

a = nil
b = []
c = ""

a.blank? #=> true
b.blank? #=> true
c.blank? #=> true

d = "1"
e = ["1"]

d.blank? #=> false
e.blank? #=> false

So the answer would be:

variable = id if variable.blank?

I know this is a little old, but for anyone stumbling across this page should know there is a difference between \n and \r\n.

The \r\n gives a CRLF end of line and the \n gives an LF end of line character. There is very little difference to the eye in general.

Create a .txt from the string and then try and open in notepad (normal not notepad++) and you will notice the difference

SHA,PCT,PRACTICE,BNF CODE,BNF NAME,ITEMS,NIC,ACT COST,QUANTITY,PERIOD
Q44,01C,N81002,0101021B0AAALAL,Sod Algin/Pot Bicarb_Susp S/F,3,20.48,19.05,2000,201901
Q44,01C,N81002,0101021B0AAAPAP,Sod Alginate/Pot Bicarb_Tab Chble 500mg,1,3.07,2.86,60,201901

The above is using 'CRLF' and the below is what 'LF only' would look like (There is a character that cant be seen where the LF shows).

SHA,PCT,PRACTICE,BNF CODE,BNF NAME,ITEMS,NIC,ACT COST,QUANTITY,PERIODQ44,01C,N81002,0101021B0AAALAL,Sod Algin/Pot Bicarb_Susp S/F,3,20.48,19.05,2000,201901Q44,01C,N81002,0101021B0AAAPAP,Sod Alginate/Pot Bicarb_Tab Chble 500mg,1,3.07,2.86,60,201901

If the Line Ends need to be corrected and the file is small enough in size, you can change the line endings in NotePad++ (or paste into word then back into Notepad - although this will make CRLF only).

This may cause some functions that read these files to potenitially no longer function (The example lines given are from GP Prescribing data - England. The file has changed from a CRLF Line end to an LF line end). This stopped an SSIS job from running and failed as couldn't read the LF line endings.

Source of Line Ending Information: https://en.wikipedia.org/wiki/Newline#Representations_in_different_character_encoding_specifications

Hope this helps someone in future :) CRLF = Windows based, LF or CF are from Unix based systems (Linux, MacOS etc.)

If you are doing in code then first check for table in database by using query SELECT table_name FROM user_tables WHERE table_name = 'XYZ'

if record found then truncate table otherwise create Table

Work like Create or Replace.

The examples above are a bit confusing, and this is probably the best way:

$.ajaxSetup({
  headers: {
    'Authorization': "Basic " + btoa(USERNAME + ":" + PASSWORD)
  }
});

I took the above from a combination of Rico and Yossi's answer.

The btoa function Base64 encodes a string.

Problem solved! I'm using Ctrl + Alt + E to open Exception Window, and I checked all throw checkbox. So the debuger can stop at the exactly the error code.

For some reason other answers are unnecessarily complex, it's easy to do it in one line in pure JavaScript:

Array.prototype.find.call(selectElement.options, o => o.value === optionValue).disabled = true;

or

selectElement.querySelector('option[value="'+optionValue.replace(/["\\]/g, '\\$&')+'"]').disabled = true;

The performance depends on the number of the options (the more the options, the slower the first one) and whether you can omit the escaping (the replace call) from the second one. Also the first one uses Array.find and arrow functions that are not available in IE11.

In my personal case the issue was fixed searching for the class id in the Windows's Registry on developer machine (because the issue was thrown in a client PC). This action will be placed into the COM component that causes the issue: an x86 library referenced in my .NET project that was not being registered as OCX/COM for the installer or updater application.

Regards

It should be Ctrl + J.

You can use this OverlayContainer. The trick is to use absolute with 100% size. Check below an example:

// @flow

import React from 'react'
import { View, StyleSheet } from 'react-native'

type Props = {
  behind: React.Component,
  front: React.Component,
  under: React.Component
}

// Show something on top of other
export default class OverlayContainer extends React.Component<Props> {
  render() {
    const { behind, front, under } = this.props

    return (
      <View style={styles.container}>
        <View style={styles.center}>
          <View style={styles.behind}>
            {behind}
          </View>
          {front}
        </View>
        {under}
      </View>
    )
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: 'center',
    height: '100%',
    justifyContent: 'center',
  },
  center: {
    width: '100%',
    height: '100%',
    alignItems: 'center',
    justifyContent: 'center',
  },
  behind: {
    alignItems: 'center',
    justifyContent: 'center',
    position: 'absolute',
    left: 0,
    top: 0,
    width: '100%',
    height: '100%'
  }
})

Using base graphics, we can use at = to control box position , combined with boxwex = for the width of the boxes. The 1st boxplot statement creates a blank plot. Then add the 2 traces in the following two statements.

Note that in the following, we use df[,-1] to exclude the 1st (id) column from the values to plot. With different data frames, it may be necessary to change this to subset for whichever columns contain the data you want to plot.

boxplot(df[,-1], boxfill = NA, border = NA) #invisible boxes - only axes and plot area
boxplot(df[df$id=="Good", -1], xaxt = "n", add = TRUE, boxfill="red", 
  boxwex=0.25, at = 1:ncol(df[,-1]) - 0.15) #shift these left by -0.15
boxplot(df[df$id=="Bad", -1], xaxt = "n", add = TRUE, boxfill="blue", 
  boxwex=0.25, at = 1:ncol(df[,-1]) + 0.15) #shift to the right by +0.15

Some dummy data:

df <- data.frame(
  id = c(rep("Good",200), rep("Bad", 200)),
  F1 = c(rnorm(200,10,2), rnorm(200,8,1)),
  F2 = c(rnorm(200,7,1),  rnorm(200,6,1)),
  F3 = c(rnorm(200,6,2),  rnorm(200,9,3)),
  F4 = c(rnorm(200,12,3), rnorm(200,8,2)))

check after the form is posted the following

$_FILES["cover_image"]["size"]==0

For CentOS 6, PHP 5.3.3 is the latest version of PHP available through the official CentOS package repository. Keep in mind, even though PHP 5.3.3 was released July 22, 2010, the official CentOS 6 PHP package was updated November 24, 2013. Why? Critical bug fixes are backported. See this question for more information: "Why are outdated packages installed by yum on CentOS? (specifically PHP 5.1) How to fix?"

If you'd like to use a more recent version of PHP, Les RPM de Remi offers CentOS PHP packages via a repository that you can add to the yum package manager. To add it as a yum repository, follow the site's instructions.

Note: Questions of this variety are probably better suited for Server Fault.

In CPython, the number of arguments is

a_method.func_code.co_argcount

and their names are in the beginning of

a_method.func_code.co_varnames

These are implementation details of CPython, so this probably does not work in other implementations of Python, such as IronPython and Jython.

One portable way to admit "pass-through" arguments is to define your function with the signature func(*args, **kwargs). This is used a lot in e.g. matplotlib, where the outer API layer passes lots of keyword arguments to the lower-level API.

I think you're conflating the use of the response object with that of the request.

The response object is for sending the HTTP response back to the calling client, whereas you are wanting to access the body of the request. See this answer which provides some guidance.

If you are using valid JSON and are POSTing it with Content-Type: application/json, then you can use the bodyParser middleware to parse the request body and place the result in request.body of your route.

For earlier versions of Express (< 4)

var express = require('express')
  , app = express.createServer();

app.use(express.bodyParser());

app.post('/', function(request, response){
  console.log(request.body);      // your JSON
  response.send(request.body);    // echo the result back
});

app.listen(3000);

Test along the lines of:

$ curl -d '{"MyKey":"My Value"}' -H "Content-Type: application/json" http://127.0.0.1:3000/
{"MyKey":"My Value"}

Updated for Express 4+

Body parser was split out into it's own npm package after v4, requires a separate install npm install body-parser

var express = require('express')
  , bodyParser = require('body-parser');

var app = express();

app.use(bodyParser.json());

app.post('/', function(request, response){
  console.log(request.body);      // your JSON
   response.send(request.body);    // echo the result back
});

app.listen(3000);

Update for Express 4.16+

Starting with release 4.16.0, a new express.json() middleware is available.

var express = require('express');

var app = express();

app.use(express.json());

app.post('/', function(request, response){
  console.log(request.body);      // your JSON
   response.send(request.body);    // echo the result back
});

app.listen(3000);

You can delete all breakpoints using

del <start_breakpoint_num> - <end_breakpoint_num>

To view the start_breakpoint_num and end_breakpoint_num use:

info break

$("#element").live('click', function(e) {
  if( (!$.browser.msie && e.button == 0) || ($.browser.msie && e.button == 1) ) {
       alert("Left Button");
    }
    else if(e.button == 2){
       alert("Right Button");
    }
});

Update for the current state of the things:

var $log = $("div.log");_x000D_
$("div.target").on("mousedown", function() {_x000D_
  $log.text("Which: " + event.which);_x000D_
  if (event.which === 1) {_x000D_
    $(this).removeClass("right middle").addClass("left");_x000D_
  } else if (event.which === 2) {_x000D_
    $(this).removeClass("left right").addClass("middle");_x000D_
  } else if (event.which === 3) {_x000D_
    $(this).removeClass("left middle").addClass("right");_x000D_
  }_x000D_
});

div.target {_x000D_
  border: 1px solid blue;_x000D_
  height: 100px;_x000D_
  width: 100px;_x000D_
}_x000D_
_x000D_
div.target.left {_x000D_
  background-color: #0faf3d;_x000D_
}_x000D_
_x000D_
div.target.right {_x000D_
  background-color: #f093df;_x000D_
}_x000D_
_x000D_
div.target.middle {_x000D_
  background-color: #00afd3;_x000D_
}_x000D_
_x000D_
div.log {_x000D_
  text-align: left;_x000D_
  color: #f00;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div class="target"></div>_x000D_
<div class="log"></div>

I had video in html string, and width of web view was larger that screen width and this is working for me.

Add these lines to HTML string.

<head>
<meta name="viewport" content="width=device-width">
</head>

Result after adding above code to HTML string:

<!DOCTYPE html>
<html>

<head>
<meta name="viewport" content="width=device-width">
</head>


</html>

You can iterate over the index values if your dataframe has already been created.

df = df.groupby('l_customer_id_i').agg(lambda x: ','.join(x))
for name in df.index:
    print name
    print df.loc[name]

It's a placeholder in the string.

For example,

string b = "world.";

Console.WriteLine("Hello {0}", b);

would produce this output:

Hello world.

Also, you can have as many placeholders as you wish. This also works on String.Format:

string b = "world.";
string a = String.Format("Hello {0}", b);

Console.WriteLine(a);

And you would still get the very same output.

Try

$ awk 'NF>1{print $NF}' file
example.
line.
file.

To get the result in one line as in your example, try:

{
    sub(/\./, ",", $NF)
    str = str$NF
}
END { print str }

output:

$ awk -f script.awk file
example, line, file, 

Pure bash:

$ while read line; do [ -z "$line" ] && continue ;echo ${line##* }; done < file
example.
line.
file.

You can use Enumeration:

Hashtable<Integer, String> table = ...

Enumeration<Integer> enumKey = table.keys();
while(enumKey.hasMoreElements()) {
    Integer key = enumKey.nextElement();
    String val = table.get(key);
    if(key==0 && val.equals("0"))
        table.remove(key);
}

Real world requirement I got recently:

Requirement A: Implement this feature after thoroughly understanding Requirement A.

According to the HTML spec, <span> is an inline element and <div> is a block element. Now that can be changed using the display CSS property but there is one issue: in terms of HTML validation, you can't put block elements inside inline elements so:

<p>...<div>foo</div>...</p>

is not strictly valid even if you change the <div> to inline or inline-block.

So, if your element is inline or inline-block use a <span>. If it's a block level element, use a <div>.

You can download JSTL 1.1 here and JSTL 1.2 here.

See also:

• JSTL wiki page

change_column is a method of ActiveRecord::Migration, so you can't call it like that in the console.

If you want to add a default value for this column, create a new migration:

rails g migration add_default_value_to_show_attribute

Then in the migration created:

# That's the more generic way to change a column
def up
  change_column :profiles, :show_attribute, :boolean, default: true
end

def down
  change_column :profiles, :show_attribute, :boolean, default: nil
end

OR a more specific option:

def up
    change_column_default :profiles, :show_attribute, true
end

def down
    change_column_default :profiles, :show_attribute, nil
end

Then run rake db:migrate.

It won't change anything to the already created records. To do that you would have to create a rake task or just go in the rails console and update all the records (which I would not recommend in production).

When you added t.boolean :show_attribute, :default => true to the create_profiles migration, it's expected that it didn't do anything. Only migrations that have not already been ran are executed. If you started with a fresh database, then it would set the default to true.

It's something they've built themselves - it's called Bigtable.

http://en.wikipedia.org/wiki/BigTable

There is a paper by Google on the database:

http://research.google.com/archive/bigtable.html

If you tried everything above and it still doesn’t work in IE, check your IIS settings if you are using a Windows Server. Make sure that the HTTP Headers > “Enable content expiration” setting, IS NOT SET to “Expire immediately”

<span class="label">My Label:</span>
<span class="text">My text</span>

Updated on 2/2021

Correct but not cross-browser solution is:

h1 {
  scroll-margin-top: 50px
}

It is part of CSS Scroll Snap spec. Currently runs on all modern browsers except for Safari. It is fixed there and released in TP, but not as a stable yet.

You should avoid having two checkboxes with the same name if you plan to reference them like document.FC.c1. If you have multiple checkboxes named c1 how will the browser know which you are referring to?

Here's a non-jQuery solution to check if any checkboxes on the page are checked.

var checkboxes = document.querySelectorAll('input[type="checkbox"]');
var checkedOne = Array.prototype.slice.call(checkboxes).some(x => x.checked);

You need the Array.prototype.slice.call part to convert the NodeList returned by document.querySelectorAll into an array that you can call some on.

To add a rounded border in any button the best way is to add the border-radius property. I belive this class is better because you can add-it at any button size. If you set the height and widht you will need to create a "rouding" class to each button size.

.btn-circle {_x000D_
  border-radius: 50%;_x000D_
}

<button class='btn-circle'>Click Me!</button>_x000D_
<button class='btn-circle'>?</button>

#include<stdio.h>
int main(void)
{  
int mat[10][10],i,j;

printf("Enter your matrix\n");  
for(i=0;i<2;i++)
  for(j=0;j<2;j++)
  {  
    scanf("%d",&mat[i][j]);  
  }  
printf("\nHere is your matrix:\n");   
for(i=0;i<2;i++)    
{  
    for(j=0;j<2;j++)  
    {  
      printf("%d ",mat[i][j]);  
    }  
    printf("\n");  
  }  

}

Steps (These apply for Linux. For other OS, visit here) -

1. Copy the apk file to platform-tools in android-sdk linux folder.
2. Open Terminal and navigate to platform-tools folder in android-sdk.
3. Then Execute this command -

   ./adb install FileName.apk

4. If the operation is successful (the result is displayed on the screen), then you will find your file in the launcher of your emulator.

For more info can check this link : android videos

Your code would be like this:

int *p = (int *)0x28ff44;

int needs to be the type of the object that you are referencing or it can be void.

But be careful so that you don't try to access something that doesn't belong to your program.

Did you try the || operator ?

Concatenation Operator Documentation from Oracle >>>

On your backEnd, you should add:

@RequestMapping(value="/blabla",  produces="text/plain" , method = RequestMethod.GET)

On the frontEnd (Service):

methodBlabla() 
{
  const headers = new HttpHeaders().set('Content-Type', 'text/plain; charset=utf-8');
  return this.http.get(this.url,{ headers, responseType: 'text'});
}

A good plugin that I have used before is DataTables.