argc is the number of arguments being passed into your program from the command line and argv is the array of arguments.

You can loop through the arguments knowing the number of them like:

for(int i = 0; i < argc; i++)
{
    // argv[i] is the argument at index i
}

argc is the number of command line arguments given to the program at runtime, and argv is an array of arrays of characters (rather, an array of C-strings) containing these arguments. If you know you're not going to need the command line arguments, you can declare your main at taking a void argument, instead:

int main(void) {
    /* ... */ 
}

Those are the only two prototypes defined for main as per the standards, but some compilers allow a return type of void as well. More on this on Wikipedia.

I have used this command to check the logs and 10000 is used to show the number of lines

sudo tail  -10000f catalina.out

The simplest way to convert from the old style to the new (Express 3.x) style is like this:

var server = app.listen(8080);
console.log('Listening on port: ' + server.address().port);

Pre 3.x it works like this:

/* This no longer works */
app.listen(8080);
console.log('Listening on port: ' + app.address().port);

I got stumped here a bit. Wanted to package some resource files into a wheel file and access them. Did the packaging using manifest file, but pip install was not installing it unless it was a sub directory. Hoping these sceen shots will help

+-- cnn_client
¦   +-- image_preprocessor.py
¦   +-- __init__.py
¦   +-- resources
¦   ¦   +-- mscoco_complete_label_map.pbtxt
¦   ¦   +-- retinanet_complete_label_map.pbtxt
¦   ¦   +-- retinanet_label_map.py
¦   +-- tf_client.py

MANIFEST.in

recursive-include cnn_client/resources *

Created a weel using standard setup.py . pip installed the wheel file. After installation checked if resources are installed. They are

ls /usr/local/lib/python2.7/dist-packages/cnn_client/resources

mscoco_complete_label_map.pbtxt
retinanet_complete_label_map.pbtxt 
 retinanet_label_map.py  

In tfclient.py to access these files. from

templates_dir = os.path.join(os.path.dirname(__file__), 'resources')
 file_path = os.path.join(templates_dir, \
            'mscoco_complete_label_map.pbtxt')
        s = open(file_path, 'r').read()

And it works.

Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.

Details: To enable the details of this specific error message to be viewable on remote machines, please create a tag within a "web.config" configuration file located in the root directory of the current web application. This tag should then have its "mode" attribute set to "Off".

The package fBasics has a function colStdevs

 require('fBasics')
 set.seed(123)
 colStdevs(matrix(rnorm(1000, mean=10, sd=1), ncol=5))
[1] 0.9431599 0.9959210 0.9648052 1.0246366 1.0351268

Try this:

Function UserNameWindows() As String
     UserName = Environ("USERNAME")
End Function

I've found the issue happens when you have multiple projects building in parallel and one or more of the projects are attempting to copy the same files, creating race conditions that will result in occasional errors. So how to solve it?

There's a lot of options, as above just changing things around could solve the issue for some people. More robust solutions would be...

• Restrict the files being copied i.e. instead of xcopy $(TargetDir)*.*"... instead do xcopy "$(TargetDir)$(TargetName).*"...

• Catch the error and retry i.e:

    :loop
    xcopy /Y /R /S /J /Q  "$(TargetDir)$(TargetName).*" "somewhere"
    if ErrorLevel 1 goto loop

• Use robocopy instead of xcopy

• You probably won't want to do this as it will increase your build times, but you could reduce the maximum number of parallel project builds to 1 ...

On which point does HTTPURLConnection try to establish a connection to the given URL?

It's worth clarifying, there's the 'UrlConnection' instance and then there's the underlying Tcp/Ip/SSL socket connection, 2 different concepts. The 'UrlConnection' or 'HttpUrlConnection' instance is synonymous with a single HTTP page request, and is created when you call url.openConnection(). But if you do multiple url.openConnection()'s from the one 'url' instance then if you're lucky, they'll reuse the same Tcp/Ip socket and SSL handshaking stuff...which is good if you're doing lots of page requests to the same server, especially good if you're using SSL where the overhead of establishing the socket is very high.

See: HttpURLConnection implementation

join(',', array_map(function (array $tag) { return $tag['tag_name']; }, $array))

You can use an async result and a delegate for this. If you read up on the documentation it should make it pretty clear what to do. I can write up some sample code if you like and attach it to this answer.

Action isExcelInteractive = IsExcelInteractive;

private async void btnOk_Click(object sender, EventArgs e)
{
    IAsyncResult result = isExcelInteractive.BeginInvoke(ItIsDone, null);
    result.AsyncWaitHandle.WaitOne();
    Console.WriteLine("YAY");
} 

static void IsExcelInteractive(){
   while (something_is_false) // do your check here
   {
       if(something_is_true)
          return true;
   }
   Thread.Sleep(1);
}

void ItIsDone(IAsyncResult result)
{
   this.isExcelInteractive.EndInvoke(result);
}

Apologies if this code isn't 100% complete, I don't have Visual Studio on this computer, but hopefully it gets you where you need to get to.

For a Swift implementation, you can add this as a UIView extension.

extension UIView {

    struct Constants {
        static let ExternalBorderName = "externalBorder"
    }

    func addExternalBorder(borderWidth: CGFloat = 2.0, borderColor: UIColor = UIColor.whiteColor()) -> CALayer {
        let externalBorder = CALayer()
        externalBorder.frame = CGRectMake(-borderWidth, -borderWidth, frame.size.width + 2 * borderWidth, frame.size.height + 2 * borderWidth)
        externalBorder.borderColor = borderColor.CGColor
        externalBorder.borderWidth = borderWidth
        externalBorder.name = Constants.ExternalBorderName

        layer.insertSublayer(externalBorder, atIndex: 0)
        layer.masksToBounds = false

        return externalBorder
    }

    func removeExternalBorders() {
        layer.sublayers?.filter() { $0.name == Constants.ExternalBorderName }.forEach() {
            $0.removeFromSuperlayer()
        }
    }

    func removeExternalBorder(externalBorder: CALayer) {
        guard externalBorder.name == Constants.ExternalBorderName else { return }
        externalBorder.removeFromSuperlayer()
    }

}

In MySQL you could try:

SELECT * FROM A INNER JOIN B ON B.MYCOL LIKE CONCAT('%', A.MYCOL, '%');

Of course this would be a massively inefficient query because it would do a full table scan.

Update: Here's a proof

create table A (MYCOL varchar(255));
create table B (MYCOL varchar(255));
insert into A (MYCOL) values ('foo'), ('bar'), ('baz');
insert into B (MYCOL) values ('fooblah'), ('somethingfooblah'), ('foo');
insert into B (MYCOL) values ('barblah'), ('somethingbarblah'), ('bar');
SELECT * FROM A INNER JOIN B ON B.MYCOL LIKE CONCAT('%', A.MYCOL, '%');
+-------+------------------+
| MYCOL | MYCOL            |
+-------+------------------+
| foo   | fooblah          |
| foo   | somethingfooblah |
| foo   | foo              |
| bar   | barblah          |
| bar   | somethingbarblah |
| bar   | bar              |
+-------+------------------+
6 rows in set (0.38 sec)

In addition to AIXroot's answer, there is also a logout function that can be used to write a utmp logout record. So if you don't have any processes for user xxxx, but userdel says "userdel: account xxxx is currently in use", you can add a logout record manually. Create a file logout.c like this:

#include <stdio.h>
#include <utmp.h>

int main(int argc, char *argv[])
{
  if (argc == 2) {
    return logout(argv[1]);
  }
  else {
    fprintf(stderr, "Usage: logout device\n");
    return 1;
  }
}

Compile it:

gcc -lutil -o logout logout.c

And then run it for whatever it says in the output of finger's "On since" line(s) as a parameter:

# finger xxxx
Login: xxxx                             Name:
Directory: /home/xxxx                   Shell: /bin/bash
On since Sun Feb 26 11:06 (GMT) on 127.0.0.1:6 (messages off) from 127.0.0.1
On since Fri Feb 24 16:53 (GMT) on pts/6, idle 3 days 17:16, from 127.0.0.1
Last login Mon Feb 10 14:45 (GMT) on pts/11 from somehost.example.com
Mail last read Sun Feb 27 08:44 2014 (GMT)
No Plan.

# userdel xxxx
userdel: account `xxxx' is currently in use.
# ./logout 127.0.0.1:6
# ./logout pts/6
# userdel xxxx
no crontab for xxxx

For some reason I couldn't get multiple folders to work (well it did for a while but as soon as I needed more dlls and added more folders, none with white spaces in the path). I then copied all needed dlls to one folder and had that as my java.library.path and it worked. I don't have an explanation - if anyone does, it would be great.

I tried experimenting with the answers given. My personal finding came out to be:

git rm -r --cached .

And then

git add .

This seemed to make my working directory nice and clean. You can put your fileName in place of the dot.

Executing PHP functions by the onclick event is a cumbersome task and near impossible.

Instead you can redirect to another PHP page.

Say you are currently on a page one.php and you want to fetch some data from this php script process the data and show it in another page i.e. two.php you can do it by writing the following code <button onclick="window.location.href='two.php'">Click me</button>

Try to use redoc-cli.

I was using bootprint-openapi by which I was generating a bunch of files (bundle.js, bundle.js.map, index.html, main.css and main.css.map) and then you can convert it into a single .html file using html-inline to generate a simple index.html file.

Then I found redoc-cli very easy to to use and output is really-2 awesome, a single and beautiful index.html file.

Installation:

npm install -g redoc-cli

Usage:

redoc-cli bundle -o index.html swagger.json

Here is a PHP solution ready for use with a n:m (many-to-many relationship) table :

// get data
$table_1 = get_table_1_rows();
$table_2_fk_id = 123;

// prepare first part of the query (before values)
$query = "INSERT INTO `table` (
   `table_1_fk_id`,
   `table_2_fk_id`,
   `insert_date`
) VALUES ";

//loop the table 1 to get all foreign keys and put it in array
foreach($table_1 as $row) {
    $query_values[] = "(".$row["table_1_pk_id"].", $table_2_fk_id, NOW())";
}

// Implode the query values array with a coma and execute the query.
$db->query($query . implode(',',$query_values));

// ##### IN SUMMARY #####

$xmlFilepath = 'test.xml';
echoFormattedXML($xmlFilepath);

/*
 * echo xml in source format
 */
function echoFormattedXML($xmlFilepath) {
    header('Content-Type: text/xml'); // to show source, not execute the xml
    echo formatXML($xmlFilepath); // format the xml to make it readable
} // echoFormattedXML

/*
 * format xml so it can be easily read but will use more disk space
 */
function formatXML($xmlFilepath) {
    $loadxml = simplexml_load_file($xmlFilepath);

    $dom = new DOMDocument('1.0');
    $dom->preserveWhiteSpace = false;
    $dom->formatOutput = true;
    $dom->loadXML($loadxml->asXML());
    $formatxml = new SimpleXMLElement($dom->saveXML());
    //$formatxml->saveXML("testF.xml"); // save as file

    return $formatxml->saveXML();
} // formatXML

I am new in Swift 3, but looking the String (index) syntax for analogy I think that index is like a "pointer" constrained to string and Int can help as an independent object. Using the base + offset syntax , then we can get the i-th character from string with the code bellow:

let s = "abcdefghi"
let i = 2
print (s[s.index(s.startIndex, offsetBy:i)])
// print c

For a range of characters ( indexes) from string using String (range) syntax we can get from i-th to f-th characters with the code bellow:

let f = 6
print (s[s.index(s.startIndex, offsetBy:i )..<s.index(s.startIndex, offsetBy:f+1 )])
//print cdefg

For a substring (range) from a string using String.substring (range) we can get the substring using the code bellow:

print (s.substring (with:s.index(s.startIndex, offsetBy:i )..<s.index(s.startIndex, offsetBy:f+1 ) ) )
//print cdefg

Notes:

1. The i-th and f-th begin with 0.

2. To f-th, I use offsetBY: f + 1, because the range of subscription use ..< (half-open operator), not include the f-th position.

3. Of course must include validate errors like invalid index.

Let's get one thing out of the way first. The explanation that yield from g is equivalent to for v in g: yield v does not even begin to do justice to what yield from is all about. Because, let's face it, if all yield from does is expand the for loop, then it does not warrant adding yield from to the language and preclude a whole bunch of new features from being implemented in Python 2.x.

What yield from does is it establishes a transparent bidirectional connection between the caller and the sub-generator:

• The connection is "transparent" in the sense that it will propagate everything correctly too, not just the elements being generated (e.g. exceptions are propagated).

• The connection is "bidirectional" in the sense that data can be both sent from and to a generator.

(If we were talking about TCP, yield from g might mean "now temporarily disconnect my client's socket and reconnect it to this other server socket".)

BTW, if you are not sure what sending data to a generator even means, you need to drop everything and read about coroutines first—they're very useful (contrast them with subroutines), but unfortunately lesser-known in Python. Dave Beazley's Curious Course on Coroutines is an excellent start. Read slides 24-33 for a quick primer.

Reading data from a generator using yield from

def reader():
    """A generator that fakes a read from a file, socket, etc."""
    for i in range(4):
        yield '<< %s' % i

def reader_wrapper(g):
    # Manually iterate over data produced by reader
    for v in g:
        yield v

wrap = reader_wrapper(reader())
for i in wrap:
    print(i)

# Result
<< 0
<< 1
<< 2
<< 3

Instead of manually iterating over reader(), we can just yield from it.

def reader_wrapper(g):
    yield from g

That works, and we eliminated one line of code. And probably the intent is a little bit clearer (or not). But nothing life changing.

Sending data to a generator (coroutine) using yield from - Part 1

Now let's do something more interesting. Let's create a coroutine called writer that accepts data sent to it and writes to a socket, fd, etc.

def writer():
    """A coroutine that writes data *sent* to it to fd, socket, etc."""
    while True:
        w = (yield)
        print('>> ', w)

Now the question is, how should the wrapper function handle sending data to the writer, so that any data that is sent to the wrapper is transparently sent to the writer()?

def writer_wrapper(coro):
    # TBD
    pass

w = writer()
wrap = writer_wrapper(w)
wrap.send(None)  # "prime" the coroutine
for i in range(4):
    wrap.send(i)

# Expected result
>>  0
>>  1
>>  2
>>  3

The wrapper needs to accept the data that is sent to it (obviously) and should also handle the StopIteration when the for loop is exhausted. Evidently just doing for x in coro: yield x won't do. Here is a version that works.

def writer_wrapper(coro):
    coro.send(None)  # prime the coro
    while True:
        try:
            x = (yield)  # Capture the value that's sent
            coro.send(x)  # and pass it to the writer
        except StopIteration:
            pass

Or, we could do this.

def writer_wrapper(coro):
    yield from coro

That saves 6 lines of code, make it much much more readable and it just works. Magic!

Sending data to a generator yield from - Part 2 - Exception handling

Let's make it more complicated. What if our writer needs to handle exceptions? Let's say the writer handles a SpamException and it prints *** if it encounters one.

class SpamException(Exception):
    pass

def writer():
    while True:
        try:
            w = (yield)
        except SpamException:
            print('***')
        else:
            print('>> ', w)

What if we don't change writer_wrapper? Does it work? Let's try

# writer_wrapper same as above

w = writer()
wrap = writer_wrapper(w)
wrap.send(None)  # "prime" the coroutine
for i in [0, 1, 2, 'spam', 4]:
    if i == 'spam':
        wrap.throw(SpamException)
    else:
        wrap.send(i)

# Expected Result
>>  0
>>  1
>>  2
***
>>  4

# Actual Result
>>  0
>>  1
>>  2
Traceback (most recent call last):
  ... redacted ...
  File ... in writer_wrapper
    x = (yield)
__main__.SpamException

Um, it's not working because x = (yield) just raises the exception and everything comes to a crashing halt. Let's make it work, but manually handling exceptions and sending them or throwing them into the sub-generator (writer)

def writer_wrapper(coro):
    """Works. Manually catches exceptions and throws them"""
    coro.send(None)  # prime the coro
    while True:
        try:
            try:
                x = (yield)
            except Exception as e:   # This catches the SpamException
                coro.throw(e)
            else:
                coro.send(x)
        except StopIteration:
            pass

This works.

# Result
>>  0
>>  1
>>  2
***
>>  4

But so does this!

def writer_wrapper(coro):
    yield from coro

The yield from transparently handles sending the values or throwing values into the sub-generator.

This still does not cover all the corner cases though. What happens if the outer generator is closed? What about the case when the sub-generator returns a value (yes, in Python 3.3+, generators can return values), how should the return value be propagated? That yield from transparently handles all the corner cases is really impressive. yield from just magically works and handles all those cases.

I personally feel yield from is a poor keyword choice because it does not make the two-way nature apparent. There were other keywords proposed (like delegate but were rejected because adding a new keyword to the language is much more difficult than combining existing ones.

In summary, it's best to think of yield from as a transparent two way channel between the caller and the sub-generator.

References:

1. PEP 380 - Syntax for delegating to a sub-generator (Ewing) [v3.3, 2009-02-13]
2. PEP 342 - Coroutines via Enhanced Generators (GvR, Eby) [v2.5, 2005-05-10]

Look before you leap (LBYL):

if idx < len(array):
    array[idx]
else:
    # handle this

Easier to ask forgiveness than permission (EAFP):

try:
    array[idx]
except IndexError:
    # handle this

In Python, EAFP seems to be the popular and preferred style. It is generally more reliable, and avoids an entire class of bugs (time of check vs. time of use). All other things being equal, the try/except version is recommended - don't see it as a "last resort".

This excerpt is from the official docs linked above, endorsing using try/except for flow control:

This common Python coding style assumes the existence of valid keys or attributes and catches exceptions if the assumption proves false. This clean and fast style is characterized by the presence of many try and except statements.

For your first method change ws.Range("A") to ws.Range("A:A") which will search the entirety of column a, like so:

Sub Find_Bingo()

        Dim wb As Workbook
        Dim ws As Worksheet
        Dim FoundCell As Range
        Set wb = ActiveWorkbook
        Set ws = ActiveSheet

            Const WHAT_TO_FIND As String = "Bingo"

            Set FoundCell = ws.Range("A:A").Find(What:=WHAT_TO_FIND)
            If Not FoundCell Is Nothing Then
                MsgBox (WHAT_TO_FIND & " found in row: " & FoundCell.Row)
            Else
                MsgBox (WHAT_TO_FIND & " not found")
            End If
End Sub

For your second method, you are using Bingo as a variable instead of a string literal. This is a good example of why I add Option Explicit to the top of all of my code modules, as when you try to run the code it will direct you to this "variable" which is undefined and not intended to be a variable at all.

Additionally, when you are using With...End With you need a period . before you reference Cells, so Cells should be .Cells. This mimics the normal qualifying behavior (i.e. Sheet1.Cells.Find..)

Change Bingo to "Bingo" and change Cells to .Cells

With Sheet1
        Set FoundCell = .Cells.Find(What:="Bingo", After:=.Cells(1, 1), _
        LookIn:=xlValues, lookat:=xlPart, SearchOrder:=xlByRows, _
        SearchDirection:=xlNext, MatchCase:=False, SearchFormat:=False)
    End With

If Not FoundCell Is Nothing Then
        MsgBox ("""Bingo"" found in row " & FoundCell.Row)
Else
        MsgBox ("Bingo not found")
End If

Update

In my

With Sheet1
    .....
End With

The Sheet1 refers to a worksheet's code name, not the name of the worksheet itself. For example, say I open a new blank Excel workbook. The default worksheet is just Sheet1. I can refer to that in code either with the code name of Sheet1 or I can refer to it with the index of Sheets("Sheet1"). The advantage to using a codename is that it does not change if you change the name of the worksheet.

Continuing this example, let's say I renamed Sheet1 to Data. Using Sheet1 would continue to work, as the code name doesn't change, but now using Sheets("Sheet1") would return an error and that syntax must be updated to the new name of the sheet, so it would need to be Sheets("Data").

In the VB Editor you would see something like this:

Notice how, even though I changed the name to Data, there is still a Sheet1 to the left. That is what I mean by codename.

The Data worksheet can be referenced in two ways:

Debug.Print Sheet1.Name
Debug.Print Sheets("Data").Name

Both should return Data

More discussion on worksheet code names can be found here.

If you are using C# you should use Environment.NewLine, which accordingly to MSDN it is:

A string containing "\r\n" for non-Unix platforms, or a string containing "\n" for Unix platforms.

Something along the lines of (using JSTL):

<p>Selected Values:
<ul>
  <c:forEach items="${paramValues['select2']}" var="selectedValue">
    <li><c:out value="${selectedValue}" /></li>
  </c:forEach>
</ul>
</p>

instead of doing it like that, why not just make the flyout position:fixed, top:0; left:0; once your window has scrolled pass a certain height:

jQuery

  $(window).scroll(function(){
      if ($(this).scrollTop() > 135) {
          $('#task_flyout').addClass('fixed');
      } else {
          $('#task_flyout').removeClass('fixed');
      }
  });

css

.fixed {position:fixed; top:0; left:0;}

Example

Found an easy solution for Spring-Boot, Spring-Security and Java-based config:

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.cors().configurationSource(new CorsConfigurationSource() {
            @Override
            public CorsConfiguration getCorsConfiguration(HttpServletRequest request) {
                return new CorsConfiguration().applyPermitDefaultValues();
            }
        });
    }
}

I think the current answers are neglecting to highlight the actual important and significant differences and what that means for the intended usage. While they might both work in certain situations because the implementer built in support for both, they have different usage scenarios. Both can annotate properties and methods but here are some important differences:

DisplayAttribute

• defined in the System.ComponentModel.DataAnnotations namespace in the System.ComponentModel.DataAnnotations.dll assembly
• can be used on parameters and fields
• lets you set additional properties like Description or ShortName
• can be localized with resources

DisplayNameAttribute

• DisplayName is in the System.ComponentModel namespace in System.dll
• can be used on classes and events
• cannot be localized with resources

The assembly and namespace speaks to the intended usage and localization support is the big kicker. DisplayNameAttribute has been around since .NET 2 and seems to have been intended more for naming of developer components and properties in the legacy property grid, not so much for things visible to end users that may need localization and such.

DisplayAttribute was introduced later in .NET 4 and seems to be designed specifically for labeling members of data classes that will be end-user visible, so it is more suitable for DTOs, entities, and other things of that sort. I find it rather unfortunate that they limited it so it can't be used on classes though.

EDIT: Looks like latest .NET Core source allows DisplayAttribute to be used on classes now as well.

Basically if you want to set size and make it change then set it to state on layout like this:

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

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: 'yellow',
  },
  View1: {
    flex: 2,
    margin: 10,
    backgroundColor: 'red',
    elevation: 1,
  },
  View2: {
    position: 'absolute',
    backgroundColor: 'orange',
    zIndex: 3,
    elevation: 3,
  },
  View3: {
    flex: 3,
    backgroundColor: 'green',
    elevation: 2,
  },
  Text: {
    fontSize: 25,
    margin: 20,
    color: 'white',
  },
});

class Example extends Component {

  constructor(props) {
    super(props);

    this.state = {
      view2LayoutProps: {
        left: 0,
        top: 0,
        width: 50,
        height: 50,
      }
    };
  }

  onLayout(event) {
    const {x, y, height, width} = event.nativeEvent.layout;
    const newHeight = this.state.view2LayoutProps.height + 1;
    const newLayout = {
        height: newHeight ,
        width: width,
        left: x,
        top: y,
      };

    this.setState({ view2LayoutProps: newLayout });
  }

  render() {
    return (
      <View style={styles.container}>
        <View style={styles.View1}>
          <Text>{this.state.view2LayoutProps.height}</Text>
        </View>
        <View onLayout={(event) => this.onLayout(event)} 
              style={[styles.View2, this.state.view2LayoutProps]} />
        <View style={styles.View3} />
      </View>
    );
  }

}


AppRegistry.registerComponent(Example);

You can create many more variation of how it should be modified, by using this in another component which has Another view as wrapper and create an onResponderRelease callback, which could pass the touch event location into the state, which could be then passed to child component as property, which could override onLayout updated state, by placing {[styles.View2, this.state.view2LayoutProps, this.props.touchEventTopLeft]} and so on.

Consider your REST API returns:

{"Intent":{"Command":"search","SubIntent":null}}

Then you can do the following to print it in a nice format:

<pre id="ciResponseText">Output will de displayed here.</pre>   

var ciResponseText = document.getElementById('ciResponseText');
var obj = JSON.parse(http.response);
ciResponseText.innerHTML = JSON.stringify(obj, undefined, 2);   

Using numpy:

In [1]: import numpy as np

In [2]: np.log2?
Type:           function
Base Class:     <type 'function'>
String Form:    <function log2 at 0x03049030>
Namespace:      Interactive
File:           c:\python26\lib\site-packages\numpy\lib\ufunclike.py
Definition:     np.log2(x, y=None)
Docstring:
    Return the base 2 logarithm of the input array, element-wise.

Parameters
----------
x : array_like
  Input array.
y : array_like
  Optional output array with the same shape as `x`.

Returns
-------
y : ndarray
  The logarithm to the base 2 of `x` element-wise.
  NaNs are returned where `x` is negative.

See Also
--------
log, log1p, log10

Examples
--------
>>> np.log2([-1, 2, 4])
array([ NaN,   1.,   2.])

In [3]: np.log2(8)
Out[3]: 3.0

meteor add thelohoadmin:bootstrap@=3.3.7 solves the issue. You get the latest bootstrap and no warning messages.

First thing to understand is that the RequestMapping#produces() element in

@RequestMapping(value = "/json", method = RequestMethod.GET, produces = "application/json")

serves only to restrict the mapping for your request handlers. It does nothing else.

Then, given that your method has a return type of String and is annotated with @ResponseBody, the return value will be handled by StringHttpMessageConverter which sets the Content-type header to text/plain. If you want to return a JSON string yourself and set the header to application/json, use a return type of ResponseEntity (get rid of @ResponseBody) and add appropriate headers to it.

@RequestMapping(value = "/json", method = RequestMethod.GET, produces = "application/json")
public ResponseEntity<String> bar() {
    final HttpHeaders httpHeaders= new HttpHeaders();
    httpHeaders.setContentType(MediaType.APPLICATION_JSON);
    return new ResponseEntity<String>("{\"test\": \"jsonResponseExample\"}", httpHeaders, HttpStatus.OK);
}

Note that you should probably have

<mvc:annotation-driven /> 

in your servlet context configuration to set up your MVC configuration with the most suitable defaults.

Your code is in the <head> => runs before the elements are rendered, so document.getElementById('compute'); returns null, as MDN promise...

element = document.getElementById(id);
element is a reference to an Element object, or null if an element with the specified ID is not in the document.

MDN

Solutions:

1. Put the scripts in the bottom of the page.
2. Call the attach code in the load event.
3. Use jQuery library and it's DOM ready event.

What is the jQuery ready event and why is it needed?
(why no just JavaScript's load event):

While JavaScript provides the load event for executing code when a page is rendered, this event does not get triggered until all assets such as images have been completely received. In most cases, the script can be run as soon as the DOM hierarchy has been fully constructed. The handler passed to .ready() is guaranteed to be executed after the DOM is ready, so this is usually the best place to attach all other event handlers...
...

ready docs

While we are up to setting JAVA_HOME, let me share some benefits of setting JAVA_HOME or any other environment variable:

1) It's easy to upgrade JDK without affecting your application startup and config file which points to JAVA_HOME. you just need to download new version and make sure your JAVA_HOME points to new version of Java. This is best benefit of using environment variable or links.

2) JAVA_HOME variable is short and concise instead of full path to JDK installation directory.

3) JAVA_HOME variable is platform independence i.e. if your startup script uses JAVA_HOME then it can run on Windows and UNIX without any modification, you just need to set JAVA_HOME on respective operating system.

Read more: http://javarevisited.blogspot.com/2012/02/how-to-set-javahome-environment-in.html#ixzz4BWmaYIjH

Don't define variables in headers. Put declarations in header and definitions in one of the .c files.

In config.h

extern const char *names[];

In some .c file:

const char *names[] =
    {
        "brian", "stefan", "steve"
    };

If you put a definition of a global variable in a header file, then this definition will go to every .c file that includes this header, and you will get multiple definition error because a varible may be declared multiple times but can be defined only once.

As you should know by now, purists say it's forbiden to run ordered tests. That might be true for unit tests. MSTest and other Unit Test frameworks are used to run pure unit test but also UI tests, full integration tests, you name it. Maybe we shouldn't call them Unit Test frameworks, or maybe we should and use them according to our needs. That's what most people do anyway.

I'm running VS2015 and I MUST run tests in a given order because I'm running UI tests (Selenium).

Priority - Doesn't do anything at all This attribute is not used by the test system. It is provided to the user for custom purposes.

orderedtest - it works but I don't recommend it because:

1. An orderedtest a text file that lists your tests in the order they should be executed. If you change a method name, you must fix the file.
2. The test execution order is respected inside a class. You can't order which class executes its tests first.
3. An orderedtest file is bound to a configuration, either Debug or Release
4. You can have several orderedtest files but a given method can not be repeated in different orderedtest files. So you can't have one orderedtest file for Debug and another for Release.

Other suggestions in this thread are interesting but you loose the ability to follow the test progress on Test Explorer.

You are left with the solution that purist will advise against, but in fact is the solution that works: sort by declaration order.

The MSTest executor uses an interop that manages to get the declaration order and this trick will work until Microsoft changes the test executor code.

This means the test method that is declared in the first place executes before the one that is declared in second place, etc.

To make your life easier, the declaration order should match the alphabetical order that is is shown in the Test Explorer.

• A010_FirstTest
• A020_SecondTest
• etc
• A100_TenthTest

I strongly suggest some old and tested rules:

• use a step of 10 because you will need to insert a test method later on
• avoid the need to renumber your tests by using a generous step between test numbers
• use 3 digits to number your tests if you are running more than 10 tests
• use 4 digits to number your tests if you are running more than 100 tests

VERY IMPORTANT

In order to execute the tests by the declaration order, you must use Run All in the Test Explorer.

Say you have 3 test classes (in my case tests for Chrome, Firefox and Edge). If you select a given class and right click Run Selected Tests it usually starts by executing the method declared in the last place.

Again, as I said before, declared order and listed order should match or else you'll in big trouble in no time.

The accepted answer doesn't quite work when you have foreign key relationships. In that case you have to drop the constraints and recreate them. Below is a stored proc for doing that based on the answer here

CREATE PROCEDURE [dbo].[deleteAllDataFromAllTables] AS
SET NOCOUNT ON

    DECLARE @dropAndCreateConstraintsTable TABLE ( DropStmt varchar(max) , CreateStmt varchar(max) )

    insert @dropAndCreateConstraintsTable select
      DropStmt = 'ALTER TABLE [' + ForeignKeys.ForeignTableSchema + 
          '].[' + ForeignKeys.ForeignTableName + 
          '] DROP CONSTRAINT [' + ForeignKeys.ForeignKeyName + ']; '
    ,  CreateStmt = 'ALTER TABLE [' + ForeignKeys.ForeignTableSchema + 
          '].[' + ForeignKeys.ForeignTableName + 
          '] WITH CHECK ADD CONSTRAINT [' +  ForeignKeys.ForeignKeyName + 
          '] FOREIGN KEY([' + ForeignKeys.ForeignTableColumn + 
          ']) REFERENCES [' + schema_name(sys.objects.schema_id) + '].[' +
      sys.objects.[name] + ']([' +
      sys.columns.[name] + ']); '
     from sys.objects
      inner join sys.columns
        on (sys.columns.[object_id] = sys.objects.[object_id])
      inner join (
        select sys.foreign_keys.[name] as ForeignKeyName
         ,schema_name(sys.objects.schema_id) as ForeignTableSchema
         ,sys.objects.[name] as ForeignTableName
         ,sys.columns.[name]  as ForeignTableColumn
         ,sys.foreign_keys.referenced_object_id as referenced_object_id
         ,sys.foreign_key_columns.referenced_column_id as referenced_column_id
         from sys.foreign_keys
          inner join sys.foreign_key_columns
            on (sys.foreign_key_columns.constraint_object_id
              = sys.foreign_keys.[object_id])
          inner join sys.objects
            on (sys.objects.[object_id]
              = sys.foreign_keys.parent_object_id)
            inner join sys.columns
              on (sys.columns.[object_id]
                = sys.objects.[object_id])
               and (sys.columns.column_id
                = sys.foreign_key_columns.parent_column_id)
        ) ForeignKeys
        on (ForeignKeys.referenced_object_id = sys.objects.[object_id])
         and (ForeignKeys.referenced_column_id = sys.columns.column_id)
     where (sys.objects.[type] = 'U')
      and (sys.objects.[name] not in ('sysdiagrams'))


    DECLARE @DropStatement nvarchar(max)
    DECLARE @RecreateStatement nvarchar(max)

    DECLARE C1 CURSOR READ_ONLY
    FOR
    SELECT DropStmt from @dropAndCreateConstraintsTable
    OPEN C1

    FETCH NEXT FROM C1 INTO @DropStatement

    WHILE @@FETCH_STATUS = 0
    BEGIN
        PRINT 'Executing ' + @DropStatement
        execute sp_executesql @DropStatement
        FETCH NEXT FROM C1 INTO @DropStatement
    END
    CLOSE C1
    DEALLOCATE C1

    DECLARE @DeleteTableStatement nvarchar(max)
    DECLARE C2 CURSOR READ_ONLY
    FOR
    SELECT 'Delete From [dbo].[' + TABLE_NAME + ']' from INFORMATION_SCHEMA.TABLES 
        WHERE TABLE_SCHEMA = 'dbo' -- Change your schema appropriately.
    OPEN C2

    FETCH NEXT FROM C2 INTO @DeleteTableStatement

    WHILE @@FETCH_STATUS = 0
    BEGIN
        PRINT 'Executing ' + @DeleteTableStatement
        execute sp_executesql @DeleteTableStatement
        FETCH NEXT FROM C2 INTO  @DeleteTableStatement
    END
    CLOSE C2
    DEALLOCATE C2

    DECLARE C3 CURSOR READ_ONLY
    FOR
    SELECT CreateStmt from @dropAndCreateConstraintsTable
    OPEN C3

    FETCH NEXT FROM C3 INTO @RecreateStatement

    WHILE @@FETCH_STATUS = 0
    BEGIN
        PRINT 'Executing ' + @RecreateStatement
        execute sp_executesql @RecreateStatement
        FETCH NEXT FROM C3 INTO  @RecreateStatement
    END
    CLOSE C3
    DEALLOCATE C3

GO

Close any open projects which are not in current use.

Try to switch off the auto publish mode during development.

Another difference is when async function returns just Task instead of Task<T> then you cannot use

GetFooAsync(...).Result;

Whereas

GetFooAsync(...).GetAwaiter().GetResult();

still works.

I know the example code in the question is for the case Task<T>, however the question is asked generally.

Actually for some reason wireshark uses two different kind of filter syntax one on display filter and other on capture filter. Display filter is only useful to find certain traffic just for display purpose only. its like you are interested in all trafic but for now you just want to see specific.

but if you are interested only in certian traffic and does not care about other at all then you use the capture filter.

The Syntax for display filter is (as mentioned earlier)

ip.addr = x.x.x.x or ip.src = x.x.x.x or ip.dst = x.x.x.x

but above syntax won't work in capture filters, following are the filters

host x.x.x.x

see more example on wireshark wiki page

Try this, it will surely work:

driver.findElement(By.xpath("//label[text()='User Name:']/following::div/input")).sendKeys("UserName" + Keys.TAB);

5000 lines isn't big (well, depends on how long the lines are...)

Anyway: assuming the string will be a word and will be seperated by whitespace...

lines=open(file_path,'r').readlines()
str_wanted="whatever_youre_looking_for"


    for i in range(len(lines)):
        l1=lines.split()
        for p in range(len(l1)):
            if l1[p]==str_wanted:
                #found
                # i is the file line, lines[i] is the full line, etc.

You don't have permission to the Python folder.

sudo chown -R $USER /usr/local/lib/python2.7

For Bootstrap 5

here I share what worked for me

<button data-bs-toggle="modal" data-tagVideo="https://www.youtube.com/embed/zcX7OJ-L8XQ" data-bs-target="#videoModal">Video</button>

<div class="modal fade" id="videoModal" data-bs-backdrop="static" data-bs-keyboard="false" tabindex="-1" aria-labelledby="videoModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
      </div>
      <div class="modal-body">
        <div class="ratio ratio-16x9">
          <iframe src="" allow="autoplay;" allowfullscreen></iframe>
        </div>
      </div>
    </div>
  </div>
</div>

function autoPlayYouTubeModal() {
  var triggerOpen = $("body").find('[data-tagVideo]');
  triggerOpen.click(function() {
    var theModal = $(this).data("bs-target"),
      videoSRC = $(this).attr("data-tagVideo"),
      videoSRCauto = videoSRC + "?autoplay=1";
    $(theModal + ' iframe').attr('src', videoSRCauto);
    $(theModal + ' button.btn-close').click(function() {
      $(theModal + ' iframe').attr('src', videoSRC);
    });
  });
}

<script>
  $(document).ready(function() {
    autoPlayYouTubeModal();
  });
</script>

• https://jsfiddle.net/alemens/f19kct0v/

One liner

touch bob; test -d bob && echo 'dir' || (test -f bob && echo 'file')

result is true (0)(dir) or true (0)(file) or false (1)(neither)

Here is an IIF version with NULL handling (based on of Xin's answer):

IIF(a IS NULL OR b IS NULL, ISNULL(a,b), IIF(a > b, a, b))

The logic is as follows, if either of the values is NULL, return the one that isn't NULL (if both are NULL, a NULL is returned). Otherwise return the greater one.

Same can be done for MIN.

IIF(a IS NULL OR b IS NULL, ISNULL(a,b), IIF(a < b, a, b))

The next version of dplyr will support an improved version of select that also incorporates renaming:

> mtcars2 <- select( mtcars, disp2 = disp )
> head( mtcars2 )
                  disp2
Mazda RX4         160
Mazda RX4 Wag     160
Datsun 710        108
Hornet 4 Drive    258
Hornet Sportabout 360
Valiant           225
> changes( mtcars, mtcars2 )
Changed variables:
      old         new
disp  0x105500400
disp2             0x105500400

Changed attributes:
      old         new
names 0x106d2cf50 0x106d28a98

import sys.process._
"echo hello world" #> new java.io.File("/tmp/example.txt") !

Are you sure you aren't pushing over SSH? Maybe check the email associated with your SSH key in bitbucket if you have one.

RewriteEngine, DirectoryIndex in .htaccess file of CodeIgniter apps

I just changed the .htaccess file contents and as shown in the following links answer. And tried refreshing the page (which didn't work, and couldn't find the request to my controller) it worked.

Then just because of my doubt I undone the changes I did to my .htaccess inside my public_html folder back to original .htaccess content. So it's now as follows (which is originally it was):

DirectoryIndex index.php
RewriteEngine on
RewriteCond $1 !^(index\.php|images|css|js|robots\.txt|favicon\.ico)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ ./index.php?/$1 [L,QSA]

And now also it works.

Hint: Seems like before the Rewrite Rules haven't been clearly setup within the Server context.

My file structure is as follows:

/
|- gheapp
|    |- application
|    L- system
|
|- public_html
|    |- .htaccess
|    L- index.php

And in the index.php I have set up the following paths to the system and the application:

$system_path = '../gheapp/system';
$application_folder = '../gheapp/application';

Note: by doing so, our application source code becomes hidden to the public at first.

Please, if you guys find anything wrong with my answer, comment and re-correct me!
Hope beginners would find this answer helpful.

Thanks!

Define in msdn: https://msdn.microsoft.com/en-us/library/yd5xkb5c.aspx

int atoi(
   const char *str 
);
int _wtoi(
   const wchar_t *str 
);
int _atoi_l(
   const char *str,
   _locale_t locale
);
int _wtoi_l(
   const wchar_t *str,
   _locale_t locale
);

CString is wchar_t string. So, if you want convert Cstring to int, you can use:

 CString s;  
int test = _wtoi(s)

if "ABCD" in "xxxxABCDyyyy":
    # whatever

To Create SQL server Store procedure in SQL server management studio

• Expand your database
• Expand programmatically
• Right-click on Stored-procedure and Select "new Stored Procedure"

Now, Write your Store procedure, for example, it can be something like below

USE DatabaseName;  
GO  
CREATE PROCEDURE ProcedureName 
 @LastName nvarchar(50),   
 @FirstName nvarchar(50)   
AS   

SET NOCOUNT ON;  
 
//Your SQL query here, like
Select  FirstName, LastName, Department  
FROM HumanResources.vEmployeeDepartmentHistory  
WHERE FirstName = @FirstName AND LastName = @LastName  
GO  

Where, DatabaseName = name of your database
ProcedureName = name of SP
InputValue = your input parameter value (@LastName and @FirstName) and type = parameter type example nvarchar(50) etc.

Source: Stored procedure in sql server (With Example)

To Execute the above stored procedure you can use sample query as below

EXECUTE ProcedureName @FirstName = N'Pilar', @LastName = N'Ackerman';  

Had the same problem in my IntelliJ 17 after adding fresh glassfish 4.1.

I had set my JAVA_HOME environment variable as follow:

echo %JAVA_HOME%
C:\Java\jdk1.8.0_121\

Then opened %GLASSFISH_HOME%\glassfish\config\asenv.bat

And just added and the end of the file:

set AS_JAVA=%JAVA_HOME%

Then Glassfish started without problems.

CHAR takes up less storage space than VARCHAR if all your data values in that field are the same length. Now perhaps in 2009 a 800GB database is the same for all intents and purposes as a 810GB if you converted the VARCHARs to CHARs, but for short strings (1 or 2 characters), CHAR is still a industry "best practice" I would say.

Now if you look at the wide variety of data types most databases provide even for integers alone (bit, tiny, int, bigint), there ARE reasons to choose one over the other. Simply choosing bigint every time is actually being a bit ignorant of the purposes and uses of the field. If a field simply represents a persons age in years, a bigint is overkill. Now it's not necessarily "wrong", but it's not efficient.

But its an interesting argument, and as databases improve over time, it could be argued CHAR vs VARCHAR does get less relevant.

You're resetting the margin on all elements in the second css block. Default margin is 40px - this should solve the problem:

.my_container ul {list-style:disc outside none; margin-left:40px;}

Another spin on this topic. The below script displays a few days around the current, with day-of-week prefix.

At the core is the standalone :dpack routine that encodes the date into a value whose modulo 7 reveals the day-of-week per ISO 8601 standards (Mon == 0). Also provided is :dunpk which is the inverse function:

@echo off& setlocal enabledelayedexpansion
rem 10/23/2018 daydate.bat: Most recent version at paulhoule.com/daydate
rem Example of date manipulation within a .BAT file.
rem This is accomplished by first packing the date into a single number.
rem This demo .bat displays dates surrounding the current date, prefixed
rem with the day-of-week.

set days=0Mon1Tue2Wed3Thu4Fri5Sat6Sun
call :dgetl y m d
call :dpack p %y% %m% %d%
for /l %%o in (-3,1,3) do (
  set /a od=p+%%o
  call :dunpk y m d !od!
  set /a dow=od%%7
  for %%d in (!dow!) do set day=!days:*%%d=!& set day=!day:~,3!
  echo !day! !y! !m! !d!
)
exit /b


rem gets local date returning year month day as separate variables
rem in: %1 %2 %3=var names for returned year month day
:dgetl
setlocal& set "z="
for /f "skip=1" %%a in ('wmic os get localdatetime') do set z=!z!%%a
set /a y=%z:~0,4%, m=1%z:~4,2% %%100, d=1%z:~6,2% %%100
endlocal& set /a %1=%y%, %2=%m%, %3=%d%& exit /b


rem packs date (y,m,d) into count of days since 1/1/1 (0..n)
rem in: %1=return var name, %2= y (1..n), %3=m (1..12), %4=d (1..31)
rem out: set %1= days since 1/1/1 (modulo 7 is weekday, Mon= 0)
:dpack
setlocal enabledelayedexpansion
set mtb=xxx  0 31 59 90120151181212243273304334& set /a r=%3*3
set /a t=%2-(12-%3)/10, r=365*(%2-1)+%4+!mtb:~%r%,3!+t/4-(t/100-t/400)-1
endlocal& set %1=%r%& exit /b


rem inverse of date packer
rem in: %1 %2 %3=var names for returned year month day
rem %4= packed date (large decimal number, eg 736989)
:dunpk
setlocal& set /a y=%4+366, y+=y/146097*3+(y%%146097-60)/36524
set /a y+=y/1461*3+(y%%1461-60)/365, d=y%%366+1, y/=366
set e=31 60 91 121 152 182 213 244 274 305 335
set m=1& for %%x in (%e%) do if %d% gtr %%x set /a m+=1, d=%d%-%%x
endlocal& set /a %1=%y%, %2=%m%, %3=%d%& exit /b

Dir.foreach("/home/mydir") do |fname|
  puts fname
end

ES6 Update - ES6 (ES2015 specification) allows for default parameters

The following will work just fine in an ES6 (ES015) environment...

function(nodeBox, str="hai")
{
  // ...
}

download jre1.7.0_45 and then extract it into the Eclipse folder and rename folder of jre1.7.0_45 to jre and Eclipse will run

In my understanding searching distinctive colors is related to search efficiently from an unit cube, where 3 dimensions of the cube are three vectors along red, green and blue axes. This can be simplified to search in a cylinder (HSV analogy), where you fix Saturation (S) and Value (V) and find random Hue values. It works in many cases, and see this here :

https://martin.ankerl.com/2009/12/09/how-to-create-random-colors-programmatically/

In R,

get_distinct_hues <- function(ncolor,s=0.5,v=0.95,seed=40) {
  golden_ratio_conjugate <- 0.618033988749895
  set.seed(seed)
  h <- runif(1)
  H <- vector("numeric",ncolor)
  for(i in seq_len(ncolor)) {
    h <- (h + golden_ratio_conjugate) %% 1
    H[i] <- h
  }
  hsv(H,s=s,v=v)
}

An alternative way, is to use R package "uniformly" https://cran.r-project.org/web/packages/uniformly/index.html

and this simple function can generate distinctive colors:

get_random_distinct_colors <- function(ncolor,seed = 100) {
  require(uniformly)
  set.seed(seed)
  rgb_mat <- runif_in_cube(n=ncolor,d=3,O=rep(0.5,3),r=0.5)
  rgb(r=rgb_mat[,1],g=rgb_mat[,2],b=rgb_mat[,3])
}

One can think of a little bit more involved function by grid-search:

get_random_grid_colors <- function(ncolor,seed = 100) {
  require(uniformly)
  set.seed(seed)
  ngrid <- ceiling(ncolor^(1/3))
  x <- seq(0,1,length=ngrid+1)[1:ngrid]
  dx <- (x[2] - x[1])/2
  x <- x + dx
  origins <- expand.grid(x,x,x)
  nbox <- nrow(origins) 
  RGB <- vector("numeric",nbox)
  for(i in seq_len(nbox)) {
    rgb <- runif_in_cube(n=1,d=3,O=as.numeric(origins[i,]),r=dx)
    RGB[i] <- rgb(rgb[1,1],rgb[1,2],rgb[1,3])
  }
  index <- sample(seq(1,nbox),ncolor)
  RGB[index]
} 

check this functions by:

ncolor <- 20
barplot(rep(1,ncolor),col=get_distinct_hues(ncolor))          # approach 1
barplot(rep(1,ncolor),col=get_random_distinct_colors(ncolor)) # approach 2
barplot(rep(1,ncolor),col=get_random_grid_colors(ncolor))     # approach 3

However, note that, defining a distinct palette with human perceptible colors is not simple. Which of the above approach generates diverse color set is yet to be tested.

Try this connection string.

Data Source=HARIHARAN-PC\\SQLEXPRESS;Initial Catalog=yourDataBaseName;Integrated Security=True

See this link for more details http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.connectionstring%28v=vs.110%29.aspx

To answer Prasanna's question below:

How do you replace multiple spaces by single space in Javascript ?

You would use the same function replace with a different regular expression. The expression for whitespace is \s and the expression for "1 or more times" is + the plus sign, so you'd just replace Adam's answer with the following:

key=key.replace(/\s+/g,"_");

The colClasses vector must have length equal to the number of imported columns. Supposing the rest of your dataset columns are 5:

colClasses=c("character",rep("numeric",5))

If one of the inserts fail, or any part of the command fails, does SQL server roll back the transaction?

No, it does not.

If it does not rollback, do I have to send a second command to roll it back?

Sure, you should issue ROLLBACK instead of COMMIT.

If you want to decide whether to commit or rollback the transaction, you should remove the COMMIT sentence out of the statement, check the results of the inserts and then issue either COMMIT or ROLLBACK depending on the results of the check.

export is a Bash builtin, echo is an executable in your $PATH. So export is interpreted by Bash as is, without spawning a new process.

You need to get Bash to interpret your command, which you can pass as a string with the -c option:

bash -c "export foo=bar; echo \$foo"

ALSO:

Each invocation of bash -c starts with a fresh environment. So something like:

bash -c "export foo=bar"
bash -c "echo \$foo"

will not work. The second invocation does not remember foo.

Instead, you need to chain commands separated by ; in a single invocation of bash -c:

bash -c "export foo=bar; echo \$foo"

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

Expand your one liner into multiple lines. Then it becomes easy:

f.write(re.split("Tech ID:|Name:|Account #:",line)[-1])

parts = re.split("Tech ID:|Name:|Account #:",line)
wanted_part = parts[-1]
wanted_part_stripped = wanted_part.strip()
f.write(wanted_part_stripped)

You don't need jQuery, just a regular expression.

This will remove the last underscore:

var str = 'a_b_c';_x000D_
console.log(  str.replace(/_([^_]*)$/, '$1')  ) //a_bc

This will replace it with the contents of the variable replacement:

var str = 'a_b_c',_x000D_
    replacement = '!';_x000D_
_x000D_
console.log(  str.replace(/_([^_]*)$/, replacement + '$1')  ) //a_b!c

Consider making your route:

_files_manage:
    pattern: /files/management/{project}/{user}
    defaults: { _controller: AcmeTestBundle:File:manage }

since they are required fields. It will make your url's prettier, and be a bit easier to manage.

Your Controller would then look like

 public function projectAction($project, $user)

You can forget about using JavaScript because the browser controls whether or not it opens in a new tab. Your best option is to do something like the following instead:

<form action="http://www.yoursite.com/dosomething" method="get" target="_blank">
    <input name="dynamicParam1" type="text"/>
    <input name="dynamicParam2" type="text" />
    <input type="submit" value="submit" />
</form>

This will always open in a new tab regardless of which browser a client uses due to the target="_blank" attribute.

If all you need is to redirect with no dynamic parameters you can use a link with the target="_blank" attribute as Tim Büthe suggests.

try this:

Sub test()

With Application.WorksheetFunction
    Cells(.CountA(Columns("A:A")) + 1, 1).Select
End With

End Sub

Hope this works for you.

To put it roughly, you're dealing with node.js which is asynchronous in nature.

When we talk about async, we're talking about doing or processing info or data while dealing with something else. It is not synonymous to parallel, please be reminded.

Your code:

var content;
fs.readFile('./Index.html', function read(err, data) {
    if (err) {
        throw err;
    }
    content = data;
});
console.log(content);

With your sample, it basically does the console.log part first, thus the variable 'content' being undefined.

If you really want the output, do something like this instead:

var content;
fs.readFile('./Index.html', function read(err, data) {
    if (err) {
        throw err;
    }
    content = data;
    console.log(content);
});

This is asynchronous. It will be hard to get used to but, it is what it is. Again, this is a rough but fast explanation of what async is.

#include<stdio.h>
#include<time.h>

void main()
{
    time_t t;
    time(&t);
    printf("\n current time is : %s",ctime(&t));
}

@firedrawndagger: to list field names/column headers iterate through the recordset Fields collection and insert the name:

Dim myRS as ADODB.Recordset
Dim fld as Field
Dim strFieldName as String 

For Each fld in myRS.Fields
    Activesheet.Selection = fld.Name
    [Some code that moves to next column]
Next

HTML

<div class='square-box'>
    <div class='square-content'>
        <h3>test</h3>
    </div>
</div>

CSS

.square-box{
    position: relative;
    width: 50%;
    overflow: hidden;
    background: #4679BD;
}
.square-box:before{
    content: "";
    display: block;
    padding-top: 100%;
}
.square-content{
    position:  absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    color: white;
    text-align: center;
}

http://jsfiddle.net/38Tnx/1425/

cast(value as int) will always work if string is a number

It's Never late. This error shows that you have After Installation of OS in Virtual Box you Remove the ISO file from Virtual Box Setting or you change your OS ISO file location. Thus you can Solve your Problem bY following given steps or you can watch video at Link

1. Open Virtual Box and Select you OS from List in Left side.
2. Then Select Setting. (setting Windows will open)
3. The Select on "Storage" From Left side Panel.
4. Then select on "empty" disk Icon on Right side panel.
5. Under "Attribute" Section you can See another Disk icon. select o it.
6. Then Select on "Choose Virtual Optical Disk file" and Select your OS ISO file.
7. Restart VirtualBox and Start you OS.

To watch Video click on Below link: Link

I expanded the code, because it's not told me the 'record number', and I must to refind it.

CREATE PROC SearchAllTables
(
@SearchStr nvarchar(100)
)
AS
BEGIN

-- Copyright © 2002 Narayana Vyas Kondreddi. All rights reserved.
-- Purpose: To search all columns of all tables for a given search string
-- Written by: Narayana Vyas Kondreddi
-- Site: http://vyaskn.tripod.com
-- Tested on: SQL Server 7.0 and SQL Server 2000
-- Date modified: 28th July 2002 22:50 GMT

-- Copyright @ 2012 Gyula Kulifai. All rights reserved.
-- Extended By: Gyula Kulifai
-- Purpose: To put key values, to exactly determine the position of search
-- Resources: Anatoly Lubarsky
-- Date extension: 19th October 2012 12:24 GMT
-- Tested on: SQL Server 10.0.5500 (SQL Server 2008 SP3)

CREATE TABLE #Results (TableName nvarchar(370), KeyValues nvarchar(3630), ColumnName nvarchar(370), ColumnValue nvarchar(3630))

SET NOCOUNT ON

DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128), @SearchStr2 nvarchar(110)
    ,@TableShortName nvarchar(256)
    ,@TableKeys nvarchar(512)
    ,@SQL nvarchar(3830)

SET  @TableName = ''
SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%','''')

WHILE @TableName IS NOT NULL
BEGIN
    SET @ColumnName = ''

    -- Scan Tables
    SET @TableName = 
    (
        SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME))
        FROM    INFORMATION_SCHEMA.TABLES
        WHERE       TABLE_TYPE = 'BASE TABLE'
            AND QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) > @TableName
            AND OBJECTPROPERTY(
                    OBJECT_ID(
                        QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)
                         ), 'IsMSShipped'
                           ) = 0
    )
    Set @TableShortName=PARSENAME(@TableName, 1)
    -- print @TableName + ';' + @TableShortName +'!' -- *** DEBUG LINE ***

        -- LOOK Key Fields, Set Key Columns
        SET @TableKeys=''
        SELECT @TableKeys = @TableKeys + '''' + QUOTENAME([name]) + ': '' + CONVERT(nvarchar(250),' + [name] + ') + ''' + ',' + ''' + '
         FROM syscolumns 
         WHERE [id] IN (
            SELECT [id] 
             FROM sysobjects 
             WHERE [name] = @TableShortName)
           AND colid IN (
            SELECT SIK.colid 
             FROM sysindexkeys SIK 
             JOIN sysobjects SO ON 
                SIK.[id] = SO.[id]  
             WHERE 
                SIK.indid = 1
                AND SO.[name] = @TableShortName)
        If @TableKeys<>''
            SET @TableKeys=SUBSTRING(@TableKeys,1,Len(@TableKeys)-8)
        -- Print @TableName + ';' + @TableKeys + '!' -- *** DEBUG LINE ***

    -- Search in Columns
    WHILE (@TableName IS NOT NULL) AND (@ColumnName IS NOT NULL)
    BEGIN
        SET @ColumnName =
        (
            SELECT MIN(QUOTENAME(COLUMN_NAME))
            FROM    INFORMATION_SCHEMA.COLUMNS
            WHERE       TABLE_SCHEMA    = PARSENAME(@TableName, 2)
                AND TABLE_NAME  = PARSENAME(@TableName, 1)
                AND DATA_TYPE IN ('char', 'varchar', 'nchar', 'nvarchar')
                AND QUOTENAME(COLUMN_NAME) > @ColumnName
        ) -- Set ColumnName

        IF @ColumnName IS NOT NULL
        BEGIN
            SET @SQL='
                SELECT 
                    ''' + @TableName + '''
                    ,'+@TableKeys+'
                    ,''' + @ColumnName + '''
                ,LEFT(' + @ColumnName + ', 3630) 
                FROM ' + @TableName + ' (NOLOCK) ' +
                ' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
            --Print @SQL -- *** DEBUG LINE ***
            INSERT INTO #Results
                Exec (@SQL)
        END -- IF ColumnName
    END -- While Table and Column
END --While Table

SELECT TableName, KeyValues, ColumnName, ColumnValue FROM #Results
END

If it was me - I would do with the table something like this:

<style type="text/css" media="screen">_x000D_
  table {_x000D_
    border: 1px solid black;_x000D_
    float: left;_x000D_
    width: 148px;_x000D_
  }_x000D_
  _x000D_
  #table_container {_x000D_
    width: 300px;_x000D_
    margin: 0 auto;_x000D_
  }_x000D_
</style>_x000D_
_x000D_
<div id="table_container">_x000D_
  <table>_x000D_
    <tr>_x000D_
      <th>a</th>_x000D_
      <th>b</th>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>1</td>_x000D_
      <td>2</td>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>4</td>_x000D_
      <td>9</td>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>16</td>_x000D_
      <td>25</td>_x000D_
    </tr>_x000D_
  </table>_x000D_
  <table>_x000D_
    <tr>_x000D_
      <th>a</th>_x000D_
      <th>b</th>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>1</td>_x000D_
      <td>2</td>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>4</td>_x000D_
      <td>9</td>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>16</td>_x000D_
      <td>25</td>_x000D_
    </tr>_x000D_
  </table>_x000D_
</div>

I know you didn't want to use floats and the question was just theory but in case anyone finds this useful, here's a solution using floats.

Add a class of left to your li elements that you want to float:

<li class="left"><img src="http://phrogz.net/tmp/alphaball.png">Smells Good</li>

and amend your CSS as follows:

li { text-align:center; float: left; clear: left; padding:0.1em 1em }
.left {float: left; clear: none;}

http://jsfiddle.net/chut319/xJ3pe/

You don't need to specify widths or inline-blocks and works as far back as IE6.

This is what I did to get the woff2 files I wanted for static deployment without having to use a CDN

TEMPORARILY add the cdn for the css to load the roboto fonts into index.html and let the page load. from google dev tools look at sources and expand the fonts.googleapis.com node and view the content of the css?family=Roboto:300,400,500&display=swap file and copy the content. Put this content in a css file in your assets directory.

In the css file, remove all the greek, cryllic and vietnamese stuff.

Look at the lines in this css file that are similar to:

    src: local('Roboto Light'), local('Roboto-Light'), url(https://fonts.gstatic.com/s/roboto/v20/KFOlCnqEu92Fr1MmSU5fBBc4.woff2) format('woff2');

copy the link address and paste it in your browser, it will download the font. Put this font into your assets folder and rename it here, as well as in the css file. Do this to the other links, I had 6 unique woff2 files.

I followed the same steps for material icons.

Now go back and comment the line where you call the cdn and instead use use the new css file you created.

Thanks to all, for me this solution worked: Magento 404 page in backoffice after login

overflow: auto

Using overflow: auto on the <body> tag is a cleaner solution and will work a charm.

2.51 * 100 = 250.999999999997

The int() function simply truncates the number at the decimal point, giving 250. Use

int(round(2.51*100)) 

to get 251 as an integer. In general, floating point numbers cannot be represented exactly. One should therefore be careful of round-off errors. As mentioned, this is not a Python-specific problem. It's a recurring problem in all computer languages.

There are two problems with your xpath - first you need to remove the child selector from after Data like phihag mentioned. Also you forgot to include root in your xpath. Here is what you want to do:

select="/root/DataSet/Data[@Value1='2']/@Value2"

-F is an argument to awk itself:

$echo "1: " | awk -F":" '/1/ {print $1}'
1

it's how I implemented it , the reason behind is if the class that you want to get the name from it's member is not static then you need to create an instanse of that and then get the member's name. so generic here comes to help

public static string GetName<TClass>(Expression<Func<TClass, object>> exp)
{
    MemberExpression body = exp.Body as MemberExpression;

    if (body == null)
    {
         UnaryExpression ubody = (UnaryExpression)exp.Body;
         body = ubody.Operand as MemberExpression;
    }

     return body.Member.Name;
}

the usage is like this

var label = ClassExtension.GetName<SomeClass>(x => x.Label); //x is refering to 'SomeClass'

You could also flip your if test:

foreach ( int number in numbers )
{
     if ( number >= 0 )
     {
        //process number
     }
 }

The ? operand makes match non-greedy. E.g. .* is greedy while .*? isn't. So you can use something like <img.*?> to match the whole tag. Or <img[^>]*>.

But remember that the whole set of HTML can't be actually parsed with regular expressions.

With pandas version 0.16.1 and up, there is now a DataFrame.sample method built-in:

import pandas

df = pandas.DataFrame(pandas.np.random.random(100))

# Randomly sample 70% of your dataframe
df_percent = df.sample(frac=0.7)

# Randomly sample 7 elements from your dataframe
df_elements = df.sample(n=7)

For either approach above, you can get the rest of the rows by doing:

df_rest = df.loc[~df.index.isin(df_percent.index)]

grep "pattern" <(head -n 10 filename)

Calling toDate will create a copy (the documentation is down-right wrong about it not being a copy), of the underlying JS Date object. JS Date object is stored in UTC and will always print to eastern time. Without getting into whether .utc() modifies the underlying object that moment wraps use the code below.

You don't need moment for this.

new Date().getTime()

This works, because JS Date at its core is in UTC from the Unix Epoch. It's extraordinarily confusing and I believe a big flaw in the interface to mix local and UTC times like this with no descriptions in the methods.

If you want to have images about same topic, you ca use subfigure package and construction:

\begin{figure}
 \subfigure[first image]{\includegraphics{image}\label{first}}
 \subfigure[second image]{\includegraphics{image}\label{second}}
 \caption{main caption}\label{main_label}
\end{figure}

If you want to have, for example two, different images next to each other you can use:

\begin{figure}
 \begin{minipage}{.5\textwidth}
  \includegraphics{image}
  \caption{first}
 \end{minipage}
 \begin{minipage}{.5\textwidth}
  \includegraphics{image}
  \caption{second}
 \end{minipage}
\end{figure}

For images in columns you will have [1] [2] [3] [4] in the source, but it will look like

[1] [3]

[2] [4].

A lot of the answers on this page only apply to a single cell, and OP asked for all the selected cells.

If all you want is the cell contents, and you don't care about references to the actual cells that are selected, you can just do this:

Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim SelectedThings As String = DataGridView1.GetClipboardContent().GetText().Replace(ChrW(9), ",")
    TextBox1.Text = SelectedThings
End Sub

When Button1 is clicked, this will fill TextBox1 with the comma-separated values of the selected cells.

pattern="foo"
for _dir in *"${pattern}"*; do
    [ -d "${_dir}" ] && dir="${_dir}" && break
done
echo "${dir}"

This is better than the other shell solution provided because

• it will be faster for huge directories as the pattern is part of the glob and not checked inside the loop
• actually works as expected when there is no directory matching your pattern (then ${dir} will be empty)
• it will work in any POSIX-compliant shell since it does not rely on the =~ operator (if you need this depends on your pattern)
• it will work for directories containing newlines in their name (vs. find)

for animate in jquery (version > 2.0)

var d = $('#div1');
d.animate({ scrollTop: d.prop('scrollHeight') }, 1000);

In HTML5, this is per-spec behaviour.

See http://www.w3.org/TR/2011/WD-html5-20110525/association-of-controls-and-forms.html#form-submission-algorithm

Look at "4.10.22.3 Form submission algorithm", step 17. In the case of a GET form to an http/s URI with a query string:

Let destination be a new URL that is equal to the action except that its <query> component is replaced by query (adding a U+003F QUESTION MARK character (?) if appropriate).

So, your browser will trash the existing "?..." part of your URI and replace it with a new one based on your form.

In HTML 4.01, the spec produces invalid URIs - most browsers didn't actually do this though..

See http://www.w3.org/TR/html401/interact/forms.html#h-17.13.3, step four - the URI will have a ? appended, even if it already contains one.

using just the shell,

while read -r col1 col2
do
  echo $col2 $col1
done <"file"

since you mentioned you are quite new to access, i had to invite you to first remove the errors in the code (the incomplete for loop and the SQL statement). Otherwise, you surely need the for loop to insert dates in a certain range.

Now, please use the code below to insert the date values into your table. I have tested the code and it works. You can try it too. After that, add your for loop to suit your scenario

Dim StrSQL As String
Dim InDate As Date
Dim DatDiff As Integer

InDate = Me.FromDateTxt

StrSQL = "INSERT INTO Test (Start_Date) VALUES ('" & InDate & "' );"

DoCmd.SetWarnings False
DoCmd.RunSQL StrSQL
DoCmd.SetWarnings True

Well, if you are writing to a CSV file, then why do you use space as a delimiter? CSV files use commas or semicolons (in Excel) as cell delimiters, so if you use delimiter=' ', you are not really producing a CSV file. You should simply construct csv.writer with the default delimiter and dialect. If you want to read the CSV file later into Excel, you could specify the Excel dialect explicitly just to make your intention clear (although this dialect is the default anyway):

example = csv.writer(open("test.csv", "wb"), dialect="excel")

I use this , its working cool.

//set timezone
date_default_timezone_set('GMT');

//set an date and time to work with
$start = '2014-06-01 14:00:00';

//display the converted time
echo date('Y-m-d H:i',strtotime('+1 hour +20 minutes',strtotime($start)));

select project navigator > select Target > Identity > Display Name > Name

Following code will generate a random sample of size 4:

import random

sample_size = 4
sorted_sample = [
    mylist[i] for i in sorted(random.sample(range(len(mylist)), sample_size))
]

(note: with Python 2, better use xrange instead of range)

Explanation

random.sample(range(len(mylist)), sample_size)

generates a random sample of the indices of the original list.

These indices then get sorted to preserve the ordering of elements in the original list.

Finally, the list comprehension pulls out the actual elements from the original list, given the sampled indices.

Guid guidId = Guid.Parse("xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx");
string guidValue = guidId.ToString("D"); //return with hyphens

Problem behind the error: If you are trying to access Oracle database you will not able to access inserted data until the transaction has been successful and to complete the transaction you have to fire a commit query after inserting the data into the table. Because Oracle database is not on auto commit mode by default.

Solution:

Go to SQL PLUS and follow the following queries..

SQL*Plus: Release 11.2.0.1.0 Production on Tue Nov 28 15:29:43 2017

Copyright (c) 1982, 2010, Oracle.  All rights reserved.

Enter user-name: scott
Enter password:

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> desc empdetails;
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 ENO                                                NUMBER(38)
 ENAME                                              VARCHAR2(20)
 SAL                                                FLOAT(126)

SQL> insert into empdetails values(1010,'John',45000.00);

1 row created.

SQL> commit;

Commit complete.

1. Create an array of 100 numbers, then randomize their order.
2. Devise a pseudo-random number generator that has a range of 100.
3. Create a boolean array of 100 elements, then set an element true when you pick that number. When you pick the next number check against the array and try again if the array element is set. (You can make an easy-to-clear boolean array with an array of long where you shift and mask to access individual bits.)

Just my two cents for future visitors who have this problem.

This is the correct syntax for PHP 5.3, for example if you call static method from the class name:

MyClassName::getConfig($key);

If you previously assign the ClassName to the $cnf variable, you can call the static method from it (we are talking about PHP 5.3):

$cnf = MyClassName;
$cnf::getConfig($key);

However, this sintax doesn't work on PHP 5.2 or lower, and you need to use the following:

$cnf = MyClassName;
call_user_func(array($cnf, "getConfig", $key, ...otherposibleadditionalparameters... ));

Hope this helps people having this error in 5.2 version (don't know if this was openfrog's version).

Given this data:

Col1  Col2  Col3
 A     X     1
 A     Y     2
 A     Y     3
 B     X     0
 B     Y     3
 B     Z     1

This query:

SELECT Col1, Col2, Col3 FROM data GROUP BY Col1, Col2, Col3

Would result in exactly the same table.

However, this query:

SELECT Col1, Col2 FROM data GROUP BY Col1, Col2

Would result in:

Col1  Col2
 A     X  
 A     Y  
 B     X  
 B     Y  
 B     Z  

Now, a query:

SELECT Col1, Col2, Col3 FROM data GROUP BY Col1, Col2

Would create a problem: the line with A, Y is the result of grouping the two lines

 A     Y     2
 A     Y     3

So, which value should be in Col3, '2' or '3'?

Normally you would use a GROUP BY to calculate e.g. a sum:

SELECT Col1, Col2, SUM(Col3) FROM data GROUP BY Col1, Col2

So in the line, we had a problem with we now get (2+3) = 5.

Grouping by all your columns in your select is effectively the same as using DISTINCT, and it is preferable to use the DISTINCT keyword word readability in this case.

So instead of

SELECT Col1, Col2, Col3 FROM data GROUP BY Col1, Col2, Col3

use

SELECT DISTINCT Col1, Col2, Col3 FROM data

Same solution suggested by Tres without using jQuery

<form onsubmit="document.getElementById('mysel').disabled = false;" action="..." method="GET">

   <select id="mysel" disabled="disabled">....</select>

   <input name="submit" id="submit" type="submit" value="SEND FORM">
</form>

This might help someone understand more, but obviously is less flexible than the jQuery one.

[![Change the build variant then you can see the run the application which will lead to error

You have to find SHA1 code for Release Key & enter it on your Developer Console. ( for me developer console is firebase some people might use different services) To find SHA1 Code . easy way is

Go to Build --- Select Build Variant -- On the left Side Select "Release" as build variant -- now go to module settings ( or try to run project , android studio will tell you about a error and click fix error button) --- Select Signing tab --- add your release key and passwords -- now goto build types -- select release -- on signing config select your release key config -- now run your project -- now run your signing report --- you can find SHA1 under release build -- enter that sha1 code on your developer console

<sup> and <sub> tags work and are your only good solution for arbitrary text. Other solutions include:

Unicode

If the superscript (or subscript) you need is of a mathematical nature, Unicode may well have you covered.

I've compiled a list of all the Unicode super and subscript characters I could identify in this gist. Some of the more common/useful ones are:

• ° SUPERSCRIPT ZERO (U+2070)
• ¹ SUPERSCRIPT ONE (U+00B9)
• ² SUPERSCRIPT TWO (U+00B2)
• ³ SUPERSCRIPT THREE (U+00B3)
• n SUPERSCRIPT LATIN SMALL LETTER N (U+207F)

People also often reach for <sup> and <sub> tags in an attempt to render specific symbols like these:

• ™ TRADE MARK SIGN (U+2122)
• ® REGISTERED SIGN (U+00AE)
• ? SERVICE MARK (U+2120)

Assuming your editor supports Unicode, you can copy and paste the characters above directly into your document.

Alternatively, you could use the hex values above in an HTML character escape. Eg, ² instead of ². This works with GitHub (and should work anywhere else your Markdown is rendered to HTML) but is less readable when presented as raw text/Markdown.

Images

If your requirements are especially unusual, you can always just inline an image. The GitHub supported syntax is:

![Alt text goes here, if you'd like](path/to/image.png) 

You can use a full path (eg. starting with https:// or http://) but it's often easier to use a relative path, which will load the image from the repo, relative to the Markdown document.

If you happen to know LaTeX (or want to learn it) you could do just about any text manipulation imaginable and render it to an image. Sites like Quicklatex make this quite easy.

You can directly set the content type like below:

res.writeHead(200, {'Content-Type': 'text/plain'});

For reference go through the nodejs Docs link.

what led me to this question is the padding and white-spaces

check my case

 if (title === "LastName")
      doSomething();

and title was " LastName"

so maybe you have to use trim function like this

var title = $(this).text().trim();

If you are using pandas and have lots of RAM (enough to read the whole file into memory) try using pd.read_csv with low_memory=False, e.g.:

import pandas as pd
data = pd.read_csv('file.csv', low_memory=False)

When cloning, by default it will not clone the events. The added rows do not have an event handler attached to them. If you call clone(true) then it should handle them as well.

http://api.jquery.com/clone/

I solved that simply by entering sudo mongo after mongod command.

The answers to these questions vary depending on whether you are using a stream socket (SOCK_STREAM) or a datagram socket (SOCK_DGRAM) - within TCP/IP, the former corresponds to TCP and the latter to UDP.

How do you know how big to make the buffer passed to recv()?

• SOCK_STREAM: It doesn't really matter too much. If your protocol is a transactional / interactive one just pick a size that can hold the largest individual message / command you would reasonably expect (3000 is likely fine). If your protocol is transferring bulk data, then larger buffers can be more efficient - a good rule of thumb is around the same as the kernel receive buffer size of the socket (often something around 256kB).

• SOCK_DGRAM: Use a buffer large enough to hold the biggest packet that your application-level protocol ever sends. If you're using UDP, then in general your application-level protocol shouldn't be sending packets larger than about 1400 bytes, because they'll certainly need to be fragmented and reassembled.

What happens if recv gets a packet larger than the buffer?

• SOCK_STREAM: The question doesn't really make sense as put, because stream sockets don't have a concept of packets - they're just a continuous stream of bytes. If there's more bytes available to read than your buffer has room for, then they'll be queued by the OS and available for your next call to recv.

• SOCK_DGRAM: The excess bytes are discarded.

How can I know if I have received the entire message?

• SOCK_STREAM: You need to build some way of determining the end-of-message into your application-level protocol. Commonly this is either a length prefix (starting each message with the length of the message) or an end-of-message delimiter (which might just be a newline in a text-based protocol, for example). A third, lesser-used, option is to mandate a fixed size for each message. Combinations of these options are also possible - for example, a fixed-size header that includes a length value.

• SOCK_DGRAM: An single recv call always returns a single datagram.

Is there a way I can make a buffer not have a fixed amount of space, so that I can keep adding to it without fear of running out of space?

No. However, you can try to resize the buffer using realloc() (if it was originally allocated with malloc() or calloc(), that is).

You might be needing a cleanup:

git gc --prune=now

or you might be needing a prune:

git remote prune public

prune

Deletes all stale tracking branches under <name>. These stale branches have already been removed from the remote repository referenced by <name>, but are still locally available in "remotes/<name>".

With --dry-run option, report what branches will be pruned, but do no actually prune them.

However, it appears these should have been cleaned up earlier with

git remote rm public 

rm

Remove the remote named <name>. All remote tracking branches and configuration settings for the remote are removed.

So it might be you hand-edited your config file and this did not occur, or you have privilege problems.

Maybe run that again and see what happens.

Advice Context

If you take a look in the revision logs, you'll note I suggested more "correct" techniques, which for whatever reason didn't want to work on their repository.

I suspected the OP had done something that left their tree in an inconsistent state that caused it to behave a bit strangely, and git gc was required to fix up the left behind cruft.

Usually git branch -rd origin/badbranch is sufficient for nuking a local tracking branch , or git push origin :badbranch for nuking a remote branch, and usually you will never need to call git gc

The text 'dasda' will never not be within a tag, right? Semantically and to be valid HTML it as to be, just add the clear class to that:

http://jsfiddle.net/EyNnk/2/

As of Bootstrap 4, you can use the spacing utilities.

Add for instance px-2 in the classes of the nav-item to increase the padding.

You want border-spacing:

<table style="border-spacing: 10px;">

Or in a CSS block somewhere:

table {
  border-spacing: 10px;
}

See quirksmode on border-spacing. Be aware that border-spacing does not work on IE7 and below.

Expanding on Jaime Cham's answer I created a NSObject+Blocks category as below. I felt these methods better matched the existing performSelector: NSObject methods

NSObject+Blocks.h

#import <Foundation/Foundation.h>

@interface NSObject (Blocks)

- (void)performBlock:(void (^)())block afterDelay:(NSTimeInterval)delay;

@end

NSObject+Blocks.m

#import "NSObject+Blocks.h"

@implementation NSObject (Blocks)

- (void)performBlock:(void (^)())block
{
    block();
}

- (void)performBlock:(void (^)())block afterDelay:(NSTimeInterval)delay
{
    void (^block_)() = [block copy]; // autorelease this if you're not using ARC
    [self performSelector:@selector(performBlock:) withObject:block_ afterDelay:delay];
}

@end

and use like so:

[anyObject performBlock:^{
    [anotherObject doYourThings:stuff];
} afterDelay:0.15];

First Google hit says:

this is usually a mismatch in the client/server bindings, where the message version in the service uses SOAP 1.2 (which expects application/soap+xml) and the version in the client uses SOAP 1.1 (which sends text/xml). WSHttpBinding uses SOAP 1.2, BasicHttpBinding uses SOAP 1.1.

It usually seems to be a wsHttpBinding on one side and a basicHttpBinding on the other.

If you will change the order of operations, you will avoid the strange behavior: First insert the value to the right place in the list, and then delete it from his first position. Make sure you delete it by his index, because if you will delete it by reference, you might delete them both...

There is an Oracle article I found regarding Java 9 module system

By default, a type in a module is not accessible to other modules unless it’s a public type and you export its package. You expose only the packages you want to expose. With Java 9, this also applies to reflection.

As pointed out in https://stackoverflow.com/a/50251958/134894, the differences between the AccessibleObject#setAccessible for JDK8 and JDK9 are instructive. Specifically, JDK9 added

This method may be used by a caller in class C to enable access to a member of declaring class D if any of the following hold:

• C and D are in the same module.
• The member is public and D is public in a package that the module containing D exports to at least the module containing C.
• The member is protected static, D is public in a package that the module containing D exports to at least the module containing C, and C is a subclass of D.
• D is in a package that the module containing D opens to at least the module containing C. All packages in unnamed and open modules are open to all modules and so this method always succeeds when D is in an unnamed or open module.

which highlights the significance of modules and their exports (in Java 9)

An example might help a little here. If I have an instance model of class Model with attributes name and state I can observe those attributes with:

let options = NSKeyValueObservingOptions([.New, .Old, .Initial, .Prior])

model.addObserver(self, forKeyPath: "name", options: options, context: nil)
model.addObserver(self, forKeyPath: "state", options: options, context: nil)

Changes to these properties will trigger a call to:

override func observeValueForKeyPath(keyPath: String!,
    ofObject object: AnyObject!,
    change: NSDictionary!,
    context: CMutableVoidPointer) {

        println("CHANGE OBSERVED: \(change)")
}

Run this:

init = tf.global_variables_initializer()
sess.run(init)

Or (depending on the version of TF that you have):

init = tf.initialize_all_variables()
sess.run(init)

Updated Version (Version 5.0 & Later):

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class Post extends Model {

    use SoftDeletes;

    protected $table = 'posts';

    // ...
}

When soft deleting a model, it is not actually removed from your database. Instead, a deleted_at timestamp is set on the record. To enable soft deletes for a model, specify the softDelete property on the model (Documentation).

For (Version 4.2):

use Illuminate\Database\Eloquent\SoftDeletingTrait; // <-- This is required

class Post extends Eloquent {

    use SoftDeletingTrait;

    protected $table = 'posts';

    // ...
}

Prior to Version 4.2 (But not 4.2 & Later)

For example (Using a posts table and Post model):

class Post extends Eloquent {

    protected $table = 'posts';
    protected $softDelete = true;
    
    // ...
}

To add a deleted_at column to your table, you may use the softDeletes method from a migration:

For example (Migration class' up method for posts table) :

/**
 * Run the migrations.
 *
 * @return void
 */
public function up()
{
    Schema::create('posts', function(Blueprint $table)
    {
        $table->increments('id');
        // more fields
        $table->softDeletes(); // <-- This will add a deleted_at field
        $table->timeStamps();
    });
}

Now, when you call the delete method on the model, the deleted_at column will be set to the current timestamp. When querying a model that uses soft deletes, the "deleted" models will not be included in query results. To soft delete a model you may use:

$model = Contents::find( $id );
$model->delete();

Deleted (soft) models are identified by the timestamp and if deleted_at field is NULL then it's not deleted and using the restore method actually makes the deleted_at field NULL. To permanently delete a model you may use forceDelete method.

the function

find ~/ -name '.DS_Store' -delete

, removed the .DS store files temporarily. But am not sure , whether the files will came back on the Mac. Also i noticed something peculiar, the "DS_Store" start coming to the Mac after installing 'ATOM'. So guys please make it sure to scan properly your third party software before installing them. Best

I have just compile it and it compiles fine without the implicit import, probably you're seeing a stale cache or something of your IDE.

Have you tried compiling from the command line?

I have the exact same version:

Probably you're thinking the warning is an error.

UPDATE

It looks like you have a Arrays.class file in the directory where you're trying to compile ( probably created before ). That's why the explicit import solves the problem. Try copying your source code to a clean new directory and try again. You'll see there is no error this time. Or, clean up your working directory and remove the Arrays.class

If you have still problems, try deactivating ("Clear") SOCKS

see: https://bugs.eclipse.org/bugs/show_bug.cgi?id=281384 "I believe the reason for this is because it uses the SOCKS proxy instead of the HTTP proxy if SOCKS is configured."

$("input:checkbox:not(:checked)") Will get you the unchecked boxes.

If you are using PHP >= 5.1.0 Just do something like this with the ErrorException class:

<?php
    // Define an error handler
    function exception_error_handler($errno, $errstr, $errfile, $errline ) {
        throw new ErrorException($errstr, $errno, 0, $errfile, $errline);
    }

    // Set your error handler
    set_error_handler("exception_error_handler");

    /* Trigger exception */
    try
    {
        // Try to do something like finding the end of the internet
    }
    catch(ErrorException $e)
    {
        // Anything you want to do with $e
    }
?>

One solution is to put them inside <center>, like this:

<center>
<a href="http//www.google.com">Search</a>
<a href="Contact Us">Contact Us</a>
</center>

I've also created a jsfiddle for you: https://jsfiddle.net/9acgLf8e/

Oracle normally requires double-quotes to delimit the name of identifiers in SQL statements, e.g.

SELECT "MyColumn" AS "MyColAlias"
FROM "MyTable" "Alias"
WHERE "ThisCol" = 'That Value';

However, it graciously allows omitting the double-quotes, in which case it quietly converts the identifier to uppercase:

SELECT MyColumn AS MyColAlias
FROM MyTable Alias
WHERE ThisCol = 'That Value';

gets internally converted to something like:

SELECT "ALIAS" . "MYCOLUMN" AS "MYCOLALIAS"
FROM "THEUSER" . "MYTABLE" "ALIAS"
WHERE "ALIAS" . "THISCOL" = 'That Value';

In Swift you can do something like this. Following condition will be true every time you reach end of the tableView

func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath) {
        if indexPath.row+1 == postArray.count {
            println("came to last row")
        }
}

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

Post data example: Storeitem|14=data14

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

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

Try to use edithidden: true and also do

editoptions: { dataInit: function(element) { $(element).attr("readonly", "readonly"); } }

Or see jqGrid wiki for custom editing, you can setup any input type, even label I think.

Here's stored procedure, which will generate the table based on data from one table and column and data from other table and column.

The function 'sum(if(col = value, 1,0)) as value ' is used. You can choose from different functions like MAX(if()) etc.

delimiter //

  create procedure myPivot(
    in tableA varchar(255),
    in columnA varchar(255),
    in tableB varchar(255),
    in columnB varchar(255)
)
begin
  set @sql = NULL;
    set @sql = CONCAT('select group_concat(distinct concat(
            \'SUM(IF(', 
        columnA, 
        ' = \'\'\',',
        columnA,
        ',\'\'\', 1, 0)) AS \'\'\',',
        columnA, 
            ',\'\'\'\') separator \', \') from ',
        tableA, ' into @sql');
    -- select @sql;

    PREPARE stmt FROM @sql;
    EXECUTE stmt;

    DEALLOCATE PREPARE stmt;
    -- select @sql;

    SET @sql = CONCAT('SELECT p.', 
        columnB, 
        ', ', 
        @sql, 
        ' FROM ', tableB, ' p GROUP BY p.',
        columnB,'');

    -- select @sql;

    /* */
    PREPARE stmt FROM @sql;
    EXECUTE stmt;
    /* */
    DEALLOCATE PREPARE stmt;
end//

delimiter ;

You're looking for the continue; statement.

Are you missing putting in your application name into the settings file? The myAppNameConfig is the default class generated at apps.py by the .manage.py createapp myAppName command. Where myAppName is the name of your app.

settings.py

INSTALLED_APPS = [
'myAppName.apps.myAppNameConfig',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
]

This way, the settings file finds out what you want to call your application. You can change how it looks later in the apps.py file by adding the following code in

myAppName/apps.py

class myAppNameConfig(AppConfig):
    name = 'myAppName'
    verbose_name = 'A Much Better Name'

You can use the list length. The last index will be the length of the list minus one.

len(list1)-1 == 3

In our case, deletion was not possible due to already having an app that we were in pre-release. The fix was not to delete but rather to edit each section, including version number, that needed to change for the new candidate.

If you're desperate (like i was) for tooltips on checkboxes, textboxes and the like, then here is my hackey workaround:

$('input:disabled, button:disabled').after(function (e) {
    d = $("<div>");
    i = $(this);
    d.css({
        height: i.outerHeight(),
        width: i.outerWidth(),
        position: "absolute",
    })
    d.css(i.offset());
    d.attr("title", i.attr("title"));
    d.tooltip();
    return d;
});

Working examples: http://jsfiddle.net/WB6bM/11/

For what its worth, I believe tooltips on disabled form elements is very important to the UX. If you're preventing somebody from doing something, you should tell them why.

In Case of not considering '0' or 'NULL' in average function. Simply use

AVG(NULLIF(your_column_name,0))

suppose below is the html paragraph tag:

<p style="background-color:#ff0000">This is a paragraph.</p>

and we want to change the paragraph color in jquery.

The client side code will be:

<script>
$(document).ready(function(){
    $("p").css("background-color", "yellow");
});
</script> 

import datetime

def check_if_old_enough(years_needed, old_date):

    limit_date = datetime.date(old_date.year + years_needed,  old_date.month, old_date.day)

    today = datetime.datetime.now().date()

    old_enough = False

    if limit_date <= today:
        old_enough = True

    return old_enough



def test_ages():

    years_needed = 30

    born_date_Logan = datetime.datetime(1988, 3, 5)

    if check_if_old_enough(years_needed, born_date_Logan):
        print("Logan is old enough")
    else:
        print("Logan is not old enough")


    born_date_Jessica = datetime.datetime(1997, 3, 6)

    if check_if_old_enough(years_needed, born_date_Jessica):
        print("Jessica is old enough")
    else:
        print("Jessica is not old enough")


test_ages()

This is the code that the Carrousel operator was running in Logan's Run film ;)

https://en.wikipedia.org/wiki/Logan%27s_Run_(film)

I am not clear exactly what your situation requires but the following may get you started. The key here is using ThisWorkbook.Path to get a relative file path:

Sub SaveToRelativePath()
    Dim relativePath As String
    relativePath = ThisWorkbook.Path & Application.PathSeparator & ActiveWorkbook.Name
    ActiveWorkbook.SaveAs Filename:=relativePath
End Sub

Use this overload of select:

Obj[] myArray = objects.Select(new Func<Obj,Obj>( o =>
{
    var someLocalVar = o.someVar;

    return new Obj() 
    { 
       Var1 = someLocalVar,
       Var2 = o.var2 
    };
})).ToArray();

From what i understand, you can just manage windows using microsoft. hold control and select multiple windows in the taskbar, then right click it and tile whatever way you want. what i've been looking for is a way to actually split a physical monitor into two. so you can run not just windowed prgrams (explorer, firefox, whatever) but full screen programs like games or movies or whatever else you want. this is super useful to fix bugs in full screen programs. im tired of these "windows mangagers" its easier just to click and drag it where you want. and im not OCD about it lining up just right. i just want to split a monitor into two. is that so hard to ask?

I like to use Textwrangler to pinpoint errors in an original app upload binary rejection. (The crash data will be found in your itunesConnect account.) Using Sachin's method above I copy the original.crash to TextWrangler, then copy the symbolicatecrash file I've created to another TextWrangler file. Comparing the two files pinpoints differences. The symbolicatecrash file will have differences which point out the file and line number of problems.

There are two different ways to use delay in selenium one which is most commonly in use. Please try this:

driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);

second one which you can use that is simply try catch method by using that method you can get your desire result.if you want example code feel free to contact me defiantly I will provide related code

I finally managed to create a query that does exactly what i wanted to have:

A filtered nested boolean query. I am not sure why this is not documented. Maybe someone here can tell me?

Here is the query:

GET /test/object/_search
{
  "from": 0,
  "size": 20,
  "sort": {
    "_score": "desc"
  },
  "query": {
    "filtered": {
      "filter": {
        "bool": {
          "must": [
            {
              "term": {
                "state": 1
              }
            }
          ]
        }
      },
      "query": {
        "bool": {
          "should": [
            {
              "bool": {
                "must": [
                  {
                    "match": {
                      "name": "foo"
                    }
                  },
                  {
                    "match": {
                      "name": "bar"
                    }
                  }
                ],
                "should": [
                  {
                    "match": {
                      "has_image": {
                        "query": 1,
                        "boost": 100
                      }
                    }
                  }
                ]
              }
            },
            {
              "bool": {
                "must": [
                  {
                    "match": {
                      "info": "foo"
                    }
                  },
                  {
                    "match": {
                      "info": "bar"
                    }
                  }
                ],
                "should": [
                  {
                    "match": {
                      "has_image": {
                        "query": 1,
                        "boost": 100
                      }
                    }
                  }
                ]
              }
            }
          ],
          "minimum_should_match": 1
        }
      }    
    }
  }
}

In pseudo-SQL:

SELECT * FROM /test/object
WHERE 
    ((name=foo AND name=bar) OR (info=foo AND info=bar))
AND state=1

Please keep in mind that it depends on your document field analysis and mappings how name=foo is internally handled. This can vary from a fuzzy to strict behavior.

"minimum_should_match": 1 says, that at least one of the should statements must be true.

This statements means that whenever there is a document in the resultset that contains has_image:1 it is boosted by factor 100. This changes result ordering.

"should": [
  {
    "match": {
      "has_image": {
        "query": 1,
        "boost": 100
      }
    }
   }
 ]

Have fun guys :)

Just generalizing it down to aspect ratios and sizes, image stuff can be done outside of this function

public static d.RectangleF ScaleRect(d.RectangleF dest, d.RectangleF src, 
  bool keepWidth, bool keepHeight)  
{
    d.RectangleF destRect = new d.RectangleF();

    float sourceAspect = src.Width / src.Height;
    float destAspect = dest.Width / dest.Height;

    if (sourceAspect > destAspect)
    {
        // wider than high keep the width and scale the height
        destRect.Width = dest.Width;
        destRect.Height = dest.Width / sourceAspect;

        if (keepHeight)
        {
            float resizePerc = dest.Height / destRect.Height;
            destRect.Width = dest.Width * resizePerc;
            destRect.Height = dest.Height;
        }
    }
    else
    {
        // higher than wide – keep the height and scale the width
        destRect.Height = dest.Height;
        destRect.Width = dest.Height * sourceAspect;

        if (keepWidth)
        {
            float resizePerc = dest.Width / destRect.Width;
            destRect.Width = dest.Width;
            destRect.Height = dest.Height * resizePerc;
        }

    }

    return destRect;
}

This just print before exit.

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

void sigint_handler(int);

int  main(void)
{
    signal(SIGINT, sigint_handler);

     while (1){
         pause();   
     }         
    return 0;
}

 void sigint_handler(int sig)
{
    /*do something*/
    printf("killing process %d\n",getpid());
    exit(0);
}

How to resize root partition online :  

1)  [root@oel7 ~]# df -h  
Filesystem                         Size  Used Avail Use% Mounted on  
/dev/mapper/root_vg-root           5.0G  4.5G  548M  90% /

2)   

PV /dev/sda2   VG root_vg     lvm2 [6.00 GiB / 0    free]

as here it shows that there is no space left on root_vg volume group, so first i need to extend VG 

3)  
[root@oel7 ~]# vgextend root_vg /dev/sdb5  

  Volume group "root_vg" successfully extended

4)  

[root@oel7 ~]# pvscan  
    PV /dev/sda2   VG root_vg     lvm2 [6.00 GiB / 0    free]  
    PV /dev/sdb5   VG root_vg     lvm2 [2.00 GiB / 2.00 GiB free]

5)  Now extend the logical volume   

[root@oel7 ~]# lvextend -L +1G /dev/root_vg/root  

  Size of logical volume root_vg/root changed from 5.00 GiB (1280 extents) to 6.00 GiB (1536 extents).
  Logical volume root successfully resized  

3)  [root@oel7 ~]# resize2fs /dev/root_vg/root  

resize2fs 1.42.9 (28-Dec-2013)  
resize2fs: Bad magic number in super-block while trying to open /dev/root_vg  /root  
Couldn't find valid filesystem superblock.  

as root partition is not a ext* partiton so , you resize2fs will not work for you.  

4)  to check the filesystem type of a partition 
[root@oel7 ~]# df -Th  
Filesystem                        Type      Size  Used Avail Use% Mounted on  
/dev/mapper/root_vg-root          xfs       6.0G  4.5G  1.6G  75% /  
devtmpfs                          devtmpfs  481M     0  481M   0% /dev  
tmpfs                             tmpfs     491M   80K  491M   1% /dev/shm  
tmpfs                             tmpfs     491M  7.1M  484M   2% /run  
tmpfs                             tmpfs     491M     0  491M   0% /sys/fs  /cgroup
/dev/mapper/data_vg-home          xfs       3.5G  2.9G  620M  83% /home  
/dev/sda1                         xfs       497M  132M  365M  27% /boot  
/dev/mapper/data_vg01-data_lv001  ext3      4.0G  2.4G  1.5G  62% /sybase  
/dev/mapper/data_vg02-backup_lv01 ext3      4.0G  806M  3.0G  22% /backup  

above command shows that root is an xfs filesystem , so we are sure that we need to use xfs_growfs command to resize the partition.

6)  [root@oel7 ~]# xfs_growfs /dev/root_vg/root  
meta-data=/dev/mapper/root_vg-root isize=256    agcount=4, agsize=327680 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=0        finobt=0
data     =                       bsize=4096   blocks=1310720, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=0
log      =internal               bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data blocks changed from 1310720 to 1572864  

[root@oel7 ~]# df -Th  

Filesystem                        Type      Size  Used Avail Use% Mounted on
/dev/mapper/root_vg-root          xfs       6.0G  4.5G  1.6G  75% /  

It's already 2019, I can't believe still no easiest and conveniencest way to convert the most popular Micro$oft Word document to Adobe PDF format in Java world.

I almost tried every method the above answers mentioned, and I found the best and the only way can satisfy my requirement is by using OpenOffice or LibreOffice. Actually I am not exactly know the difference between them, seems both of them provide soffice command line.

My requirement is:

1. It must run on Linux, more specifically CentOS, not on Windows, thus we cannot install Microsoft Office on it;
2. It must support Chinese character, so ISO-8859-1 character encoding is not a choice, it must support Unicode.

First thing came in mind is doc-to-pdf-converter, but it lacks of maintenance, last update happened 4 years ago, I will not use a nobody-maintain-solution. Xdocreport seems a promising choice, but it can only convert docx, but not doc binary file which is mandatory for me. Using Java to call OpenOffice API seems good, but too complicated for such a simple requirement.

Finally I found the best solution: use OpenOffice command line to finish the job:

Runtime.getRuntime().exec("soffice --convert-to pdf -outdir . /path/some.doc");

I always believe the shortest code is the best code (of course it should be understandable), that's it.

The easiest way is to hard code the columns yourself to better control the output file:

SELECT 'ColName1', 'ColName2', 'ColName3'
UNION ALL
SELECT ColName1, ColName2, ColName3
    FROM YourTable
    INTO OUTFILE '/path/outfile'

I tried all the options here but they didnt work for me. Eventually I got it working using

{{ site.url }}

Hope this helps someone who is still struggling.

As stats on iOS usage, indicating that iOS 9.0-9.2.x usage is currently at 0.17%. If these numbers are truly indicative of global use of these versions, then it’s even more likely to be safe to remove shrink-to-fit from your viewport meta tag.

After 9.2.x. IOS remove this tag check on its' browser.

You can check this page https://www.scottohara.me/blog/2018/12/11/shrink-to-fit.html

If you simply want to know if the sets are equal, the equals method on AbstractSet is implemented roughly as below:

    public boolean equals(Object o) {
        if (o == this)
            return true;
        if (!(o instanceof Set))
            return false;
        Collection c = (Collection) o;
        if (c.size() != size())
            return false;
        return containsAll(c);
    }

Note how it optimizes the common cases where:

• the two objects are the same
• the other object is not a set at all, and
• the two sets' sizes are different.

After that, containsAll(...) will return false as soon as it finds an element in the other set that is not also in this set. But if all elements are present in both sets, it will need to test all of them.

The worst case performance therefore occurs when the two sets are equal but not the same objects. That cost is typically O(N) or O(NlogN) depending on the implementation of this.containsAll(c).

And you get close-to-worst case performance if the sets are large and only differ in a tiny percentage of the elements.

UPDATE

If you are willing to invest time in a custom set implementation, there is an approach that can improve the "almost the same" case.

The idea is that you need to pre-calculate and cache a hash for the entire set so that you could get the set's current hashcode value in O(1). Then you can compare the hashcode for the two sets as an acceleration.

How could you implement a hashcode like that? Well if the set hashcode was:

• zero for an empty set, and
• the XOR of all of the element hashcodes for a non-empty set,

then you could cheaply update the set's cached hashcode each time you added or removed an element. In both cases, you simply XOR the element's hashcode with the current set hashcode.

Of course, this assumes that element hashcodes are stable while the elements are members of sets. It also assumes that the element classes hashcode function gives a good spread. That is because when the two set hashcodes are the same you still have to fall back to the O(N) comparison of all elements.

You could take this idea a bit further ... at least in theory.

WARNING - This is highly speculative. A "thought experiment" if you like.

Suppose that your set element class has a method to return a crypto checksums for the element. Now implement the set's checksums by XORing the checksums returned for the elements.

What does this buy us?

Well, if we assume that nothing underhand is going on, the probability that any two unequal set elements have the same N-bit checksums is 2^-N. And the probability 2 unequal sets have the same N-bit checksums is also 2^-N. So my idea is that you can implement equals as:

    public boolean equals(Object o) {
        if (o == this)
            return true;
        if (!(o instanceof Set))
            return false;
        Collection c = (Collection) o;
        if (c.size() != size())
            return false;
        return checksums.equals(c.checksums);
    }

Under the assumptions above, this will only give you the wrong answer once in 2^-N time. If you make N large enough (e.g. 512 bits) the probability of a wrong answer becomes negligible (e.g. roughly 10^-150).

The downside is that computing the crypto checksums for elements is very expensive, especially as the number of bits increases. So you really need an effective mechanism for memoizing the checksums. And that could be problematic.

And the other downside is that a non-zero probability of error may be unacceptable no matter how small the probability is. (But if that is the case ... how do you deal with the case where a cosmic ray flips a critical bit? Or if it simultaneously flips the same bit in two instances of a redundant system?)

Use CSS:

<html>
<head>
<style>
.Large
{
    font-size: 16pt;
    height: 50px;
}
</style>
<body>
<input type="text" class="Large">
</body>
</html>

Nothing helps me but this:

transparent_drawable.xml:

<?xml version="1.0" encoding="utf-8"?>    
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#00000000"/>
</shape>

layout.xml:

android:listSelector="@drawable/transparent_drawable"

It usually works when you change the directory name, where the file is. It worked for me when I moved it from "js/" to "../js"

My current BKM for this is

... | xargs -n1 -I % perl -e 'system("echo 1 %"); system("echo 2 %");'

It is unfortunate that this uses perl, which is less likely to be installed than bash; but it handles more input that the accepted answer. (I welcome a ubiquitous version that does not rely on perl.)

@KeithThompson's suggestion of

 ... | xargs -I % sh -c 'command1; command2; ...'

is great - unless you have the shell comment character # in your input, in which case part of the first command and all of the second command will be truncated.

Hashes # can be quite common, if the input is derived from a filesystem listing, such as ls or find, and your editor creates temporary files with # in their name.

Example of the problem:

$ bash 1366 $>  /bin/ls | cat
#Makefile#
#README#
Makefile
README

Oops, here is the problem:

$ bash 1367 $>  ls | xargs -n1 -I % sh -i -c 'echo 1 %; echo 2 %'
1
1
1
1 Makefile
2 Makefile
1 README
2 README

Ahh, that's better:

$ bash 1368 $>  ls | xargs -n1 -I % perl -e 'system("echo 1 %"); system("echo 2 %");'
1 #Makefile#
2 #Makefile#
1 #README#
2 #README#
1 Makefile
2 Makefile
1 README
2 README
$ bash 1369 $>  

You can reach each separate container using .parent() API.

Like,

var highestBox = 0;
        $('.container .column').each(function(){  
                if($(this).parent().height() > highestBox){  
                highestBox = $(this).height();  
        }
    }); 

You could add in your code a call system with the new definition:

sprintf(newdef,"export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:%s:%s",ld1,ld2);
system(newdef);

But, I don't know it that is the rigth solution but it works.

Regards

clientWidth and clientHeight are DOM properties that show the current in-browser size of the inner dimensions of a DOM element (excluding margin and border). So in the case of an IMG element, this will get the actual dimensions of the visible image.

var img = document.getElementById('imageid'); 
//or however you get a handle to the IMG
var width = img.clientWidth;
var height = img.clientHeight;

String.split uses Regular Expressions, also you don't need to allocate an extra array for your split.

The split-method will give you a list., the problem is that you try to pre-define how many occurrences you have of a tab, but how would you Really know that? Try using the Scanner or StringTokenizer and just learn how splitting strings work.

Let me explain Why \t does not work and why you need \\\\ to escape \\.

Okay, so when you use Split, it actually takes a regex ( Regular Expression ) and in regular expression you want to define what Character to split by, and if you write \t that actually doesn't mean \t and what you WANT to split by is \t, right? So, by just writing \t you tell your regex-processor that "Hey split by the character that is escaped t" NOT "Hey split by all characters looking like \t". Notice the difference? Using \ means to escape something. And \ in regex means something Totally different than what you think.

So this is why you need to use this Solution:

\\t

To tell the regex processor to look for \t. Okay, so why would you need two of em? Well, the first \ escapes the second, which means it will look like this: \t when you are processing the text!

Now let's say that you are looking to split \

Well then you would be left with \\ but see, that doesn't Work! because \ will try to escape the previous char! That is why you want the Output to be \\ and therefore you need to have \\\\.

I really hope the examples above helps you understand why your solution doesn't work and how to conquer other ones!

Now, I've given you this answer before, maybe you should start looking at them now.

OTHER METHODS

StringTokenizer

You should look into the StringTokenizer, it's a very handy tool for this type of work.

Example

 StringTokenizer st = new StringTokenizer("this is a test");
 while (st.hasMoreTokens()) {
     System.out.println(st.nextToken());
 }

This will output

 this
 is
 a
 test

You use the Second Constructor for StringTokenizer to set the delimiter:

StringTokenizer(String str, String delim)

Scanner

You could also use a Scanner as one of the commentators said this could look somewhat like this

Example

 String input = "1 fish 2 fish red fish blue fish";

 Scanner s = new Scanner(input).useDelimiter("\\s*fish\\s*");

 System.out.println(s.nextInt());
 System.out.println(s.nextInt());
 System.out.println(s.next());
 System.out.println(s.next());

 s.close(); 

The output would be

 1
 2
 red
 blue 

Meaning that it will cut out the word "fish" and give you the rest, using "fish" as the delimiter.

examples taken from the Java API

I started to get the issue today only on chrome and not safari for the same project/url for my goormide container (node.js)

After trying several suggestions above which didn't appear to work and backtracking on some code changes I made from yesterday to today which also made no difference I ended up in the chrome settings clicking:

1.Settings;

2.scroll down to bottom, select: "Advanced";

3.scroll down to bottom, select: "Restore settings to their original defaults";

That appears to have fixed the problem as I no longer get the warning/error in the console and the page displays as it should. Reading the posts above it appears the issue can occur from any number of sources so the settings reset is a potential generic fix. Cheers

Everybody jumped on this one!!! I too made a fiddle:

http://jsfiddle.net/audetwebdesign/kh4aR/

RobAgar gets a point for pointing out white-space:nowrap first.

Couple of things here, you need overflow: hidden if you don't want to see the extra characters poking out into your layout.

Also, as mentioned, you could use white-space: pre (see EnderMB) keeping in mind that pre will not collapse white space whereas white-space: nowrap will.

I've been debuging, and refactoring code to solve this error for the last four hours. A post above led me to see the problem:

Property before: startPoint = [[DataPoint alloc] init] ; startPoint= [DataPointList objectAtIndex: 0];
. . . x = startPoint.x - 10; // EXC_BAD_ACCESS

Property after: startPoint = [[DataPoint alloc] init] ; startPoint = [[DataPointList objectAtIndex: 0] retain];

Goodbye EXC_BAD_ACCESS

You have to find the right user that needs to use temp folder. In my computer I follow the above link and find the special folder c:\inetpub, that iis use to execute her web services. I check what users could use these folder and find something like these: computername\iis_isusrs

The main issue comes when you try to add it to all permit on temp folder I was going to properties, security tab, edit button, add user button then i put iis_isusrs

and "check names" button

It doesn´t find anything The reason is the in my case it looks ( windows 2008 r2 iis 7 ) on pdgs.local location You have to go to "Select Users or Groups" form, click on Advanced button, click on Locations button and will see a specific hierarchy

• computername
• Entire Directory
• • pdgs.local

So when you try to add an user, its search name on pdgs.local. You have to select computername and click ok, Click on "Find Now"

Look for IIS_IUSRS on Name(RDN) column, click ok. So we go back to "Select Users or Groups" form with new and right user underline

click ok, allow full control, and click ok again.

That´s all folks, Hope it helps,

Jose from Moralzarzal ( Madrid )

You can setup _JAVA_OPTIONS instead of JAVA_OPTS. This should work without $_JAVA_OPTIONS.

You cannot get stdout to print unbuffered to a pipe (unless you can rewrite the program that prints to stdout), so here is my solution:

Redirect stdout to sterr, which is not buffered. '<cmd> 1>&2' should do it. Open the process as follows: myproc = subprocess.Popen('<cmd> 1>&2', stderr=subprocess.PIPE)
You cannot distinguish from stdout or stderr, but you get all output immediately.

Hope this helps anyone tackling this problem.

Here is how you do it: Simple way

// Initializing a new alert dialog
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage(R.string.message);
builder.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
        doAction();
    }
});
builder.setNegativeButton(R.string.cancel, null);

// Create the alert dialog and change Buttons colour
AlertDialog dialog = builder.create();
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
    @Override
    public void onShow(DialogInterface arg0) {
        dialog.getButton(AlertDialog.BUTTON_POSITIVE).setTextColor(getResources().getColor(R.color.red));
        dialog.getButton(AlertDialog.BUTTON_NEGATIVE).setTextColor(getResources().getColor(R.color.blue));
        //dialog.getButton(AlertDialog.BUTTON_NEUTRAL).setTextColor(getResources().getColor(R.color.black));
    }
});
dialog.show();

A ReentrantLock is unstructured, unlike synchronized constructs -- i.e. you don't need to use a block structure for locking and can even hold a lock across methods. An example:

private ReentrantLock lock;

public void foo() {
  ...
  lock.lock();
  ...
}

public void bar() {
  ...
  lock.unlock();
  ...
}

Such flow is impossible to represent via a single monitor in a synchronized construct.

Aside from that, ReentrantLock supports lock polling and interruptible lock waits that support time-out. ReentrantLock also has support for configurable fairness policy, allowing more flexible thread scheduling.

The constructor for this class accepts an optional fairness parameter. When set true, under contention, locks favor granting access to the longest-waiting thread. Otherwise this lock does not guarantee any particular access order. Programs using fair locks accessed by many threads may display lower overall throughput (i.e., are slower; often much slower) than those using the default setting, but have smaller variances in times to obtain locks and guarantee lack of starvation. Note however, that fairness of locks does not guarantee fairness of thread scheduling. Thus, one of many threads using a fair lock may obtain it multiple times in succession while other active threads are not progressing and not currently holding the lock. Also note that the untimed tryLock method does not honor the fairness setting. It will succeed if the lock is available even if other threads are waiting.

ReentrantLock may also be more scalable, performing much better under higher contention. You can read more about this here.

This claim has been contested, however; see the following comment:

In the reentrant lock test, a new lock is created each time, thus there is no exclusive locking and the resulting data is invalid. Also, the IBM link offers no source code for the underlying benchmark so its impossible to characterize whether the test was even conducted correctly.

When should you use ReentrantLocks? According to that developerWorks article...

The answer is pretty simple -- use it when you actually need something it provides that synchronized doesn't, like timed lock waits, interruptible lock waits, non-block-structured locks, multiple condition variables, or lock polling. ReentrantLock also has scalability benefits, and you should use it if you actually have a situation that exhibits high contention, but remember that the vast majority of synchronized blocks hardly ever exhibit any contention, let alone high contention. I would advise developing with synchronization until synchronization has proven to be inadequate, rather than simply assuming "the performance will be better" if you use ReentrantLock. Remember, these are advanced tools for advanced users. (And truly advanced users tend to prefer the simplest tools they can find until they're convinced the simple tools are inadequate.) As always, make it right first, and then worry about whether or not you have to make it faster.

One final aspect that's gonna become more relevant in the near future has to do with Java 15 and Project Loom. In the (new) world of virtual threads, the underlying scheduler would be able to work much better with ReentrantLock than it's able to do with synchronized, that's true at least in the initial Java 15 release but may be optimized later.

In the current Loom implementation, a virtual thread can be pinned in two situations: when there is a native frame on the stack — when Java code calls into native code (JNI) that then calls back into Java — and when inside a synchronized block or method. In those cases, blocking the virtual thread will block the physical thread that carries it. Once the native call completes or the monitor released (the synchronized block/method is exited) the thread is unpinned.

If you have a common I/O operation guarded by a synchronized, replace the monitor with a ReentrantLock to let your application benefit fully from Loom’s scalability boost even before we fix pinning by monitors (or, better yet, use the higher-performance StampedLock if you can).

You can actually provide implementations of pure virtual functions in C++. The only difference is all pure virtual functions must be implemented by derived classes before the class can be instantiated.

this works for me on chrome 67, firefox 67,

if(!document.hasFocus()) {
    // do stuff
}

We could use built-in function repr() or string interpolation fr'{}' escape all backwardslashs \ in Python 3.7.*

repr('my_string') or fr'{my_string}'

Check the Link: https://docs.python.org/3/library/functions.html#repr

To check for the existence of a directory using Dir, you need to specify vbDirectory as the second argument, as in something like:

If Dir("C:\2013 Recieved Schedules" & "\" & client, vbDirectory) = "" Then

Note that, with vbDirectory, Dir will return a non-empty string if the specified path already exists as a directory or as a file (provided the file doesn't have any of the read-only, hidden, or system attributes). You could use GetAttr to be certain it's a directory and not a file.

An important point that often bites new Python programmers but the other posters haven't made explicit is that strings in Python are immutable -- you can't ever modify them in place.

You need to retrain yourself when working with strings in Python so that instead of thinking, "How can I modify this string?" instead you're thinking "how can I create a new string that has some pieces from this one I've already gotten?"

Just use ax = fig.add_axes([left, bottom, width, height]) if you want exact control of the figure layout. eg.

left = 0.05
bottom = 0.05
width = 0.9
height = 0.9
ax = fig.add_axes([left, bottom, width, height])

In Swift 5 and Xcode 10.2

Basically we have two types of buttons.

1) System type button

2) Custom type button (In custom type button we can set background image for button)

And these two types of buttons has few control states https://developer.apple.com/documentation/uikit/uicontrol/state

Important states are

1) Normal state

2) Selected state

3) Highlighted state

4) Disabled state etc...

//For system type button
let button = UIButton(type: .system)
button.frame = CGRect(x: 100, y: 250, width: 100, height: 50)
//  button.backgroundColor = .blue
button.setTitle("Button", for: .normal)
button.setTitleColor(.white, for: .normal)
button.titleLabel?.font = UIFont.boldSystemFont(ofSize: 13.0)
button.titleLabel?.textAlignment = .center//Text alighment center
button.titleLabel?.numberOfLines = 0//To display multiple lines in UIButton
button.titleLabel?.lineBreakMode = .byWordWrapping//By word wrapping
button.tag = 1//To assign tag value
button.btnProperties()//Call UIButton properties from extension function
button.addTarget(self, action:#selector(self.buttonClicked), for: .touchUpInside)
self.view.addSubview(button)

//For custom type button (add image to your button)
let button2 = UIButton(type: .custom)
button2.frame = CGRect(x: 100, y: 400, width: 100, height: 50)
//        button2.backgroundColor = .blue
button2.setImage(UIImage.init(named: "img.png"), for: .normal)
button2.tag = 2
button2.btnProperties()//Call UIButton properties from extension function
button2.addTarget(self, action:#selector(self.buttonClicked), for: .touchUpInside)
self.view.addSubview(button2)

@objc func buttonClicked(sender:UIButton) {
    print("Button \(sender.tag) clicked")
}

//You can add UIButton properties using extension
extension UIButton {
    func btnProperties() {
        layer.cornerRadius = 10//Set button corner radious
        clipsToBounds = true
        backgroundColor = .blue//Set background colour
        //titleLabel?.textAlignment = .center//add properties like this
    }
}

public static String getFileExtension(String fileName) {
        if (TextUtils.isEmpty(fileName) || !fileName.contains(".") || fileName.endsWith(".")) return null;
        return fileName.substring(fileName.lastIndexOf(".") + 1);
    }

    public static String getBaseFileName(String fileName) {
        if (TextUtils.isEmpty(fileName) || !fileName.contains(".") || fileName.endsWith(".")) return null;
        return fileName.substring(0,fileName.lastIndexOf("."));
    }

If you are working with Keras library and want to use tensorboard to print your graphs of accuracy and other variables, Then below are the steps to follow.

step 1: Initialize the keras callback library to import tensorboard by using below command

from keras.callbacks import TensorBoard

step 2: Include the below command in your program just before "model.fit()" command.

tensor_board = TensorBoard(log_dir='./Graph', histogram_freq=0, write_graph=True, write_images=True)

Note: Use "./graph". It will generate the graph folder in your current working directory, avoid using "/graph".

step 3: Include Tensorboard callback in "model.fit()".The sample is given below.

model.fit(X_train,y_train, batch_size=batch_size, epochs=nb_epoch, verbose=1, validation_split=0.2,callbacks=[tensor_board])

step 4 : Run your code and check whether your graph folder is there in your working directory. if the above codes work correctly you will have "Graph" folder in your working directory.

step 5 : Open Terminal in your working directory and type the command below.

tensorboard --logdir ./Graph

step 6: Now open your web browser and enter the address below.

http://localhost:6006

After entering, the Tensorbaord page will open where you can see your graphs of different variables.

I like Seaborn's regplot or lmplot for this:

I have the same issue. My solution was delete one of the oracle path in environment variable. I also changed the inventory.xml and point to the oracle home version which is in my environment path variable.

PlaceHolder control

Use the PlaceHolder control as a container to store server controls that are dynamically added to the Web page. The PlaceHolder control does not produce any visible output and is used only as a container for other controls on the Web page. You can use the Control.Controls collection to add, insert, or remove a control in the PlaceHolder control.

Panel control

The Panel control is a container for other controls. It is especially useful when you want to generate controls programmatically, hide/show a group of controls, or localize a group of controls.

The Direction property is useful for localizing a Panel control's content to display text for languages that are written from right to left, such as Arabic or Hebrew.

The Panel control provides several properties that allow you to customize the behavior and display of its contents. Use the BackImageUrl property to display a custom image for the Panel control. Use the ScrollBars property to specify scroll bars for the control.

Small differences when rendering HTML: a PlaceHolder control will render nothing, but Panel control will render as a <div>.

More information at ASP.NET Forums

What is SQL JOIN ?

SQL JOIN is a method to retrieve data from two or more database tables.

What are the different SQL JOINs ?

There are a total of five JOINs. They are :

  1. JOIN or INNER JOIN
  2. OUTER JOIN

     2.1 LEFT OUTER JOIN or LEFT JOIN
     2.2 RIGHT OUTER JOIN or RIGHT JOIN
     2.3 FULL OUTER JOIN or FULL JOIN

  3. NATURAL JOIN
  4. CROSS JOIN
  5. SELF JOIN

1. JOIN or INNER JOIN :

In this kind of a JOIN, we get all records that match the condition in both tables, and records in both tables that do not match are not reported.

In other words, INNER JOIN is based on the single fact that: ONLY the matching entries in BOTH the tables SHOULD be listed.

Note that a JOIN without any other JOIN keywords (like INNER, OUTER, LEFT, etc) is an INNER JOIN. In other words, JOIN is a Syntactic sugar for INNER JOIN (see: Difference between JOIN and INNER JOIN).

2. OUTER JOIN :

OUTER JOIN retrieves

Either, the matched rows from one table and all rows in the other table Or, all rows in all tables (it doesn't matter whether or not there is a match).

There are three kinds of Outer Join :

2.1 LEFT OUTER JOIN or LEFT JOIN

This join returns all the rows from the left table in conjunction with the matching rows from the right table. If there are no columns matching in the right table, it returns NULL values.

2.2 RIGHT OUTER JOIN or RIGHT JOIN

This JOIN returns all the rows from the right table in conjunction with the matching rows from the left table. If there are no columns matching in the left table, it returns NULL values.

2.3 FULL OUTER JOIN or FULL JOIN

This JOIN combines LEFT OUTER JOIN and RIGHT OUTER JOIN. It returns rows from either table when the conditions are met and returns NULL value when there is no match.

In other words, OUTER JOIN is based on the fact that: ONLY the matching entries in ONE OF the tables (RIGHT or LEFT) or BOTH of the tables(FULL) SHOULD be listed.

Note that `OUTER JOIN` is a loosened form of `INNER JOIN`.

3. NATURAL JOIN :

It is based on the two conditions :

1. the JOIN is made on all the columns with the same name for equality.
2. Removes duplicate columns from the result.

This seems to be more of theoretical in nature and as a result (probably) most DBMS don't even bother supporting this.

4. CROSS JOIN :

It is the Cartesian product of the two tables involved. The result of a CROSS JOIN will not make sense in most of the situations. Moreover, we won't need this at all (or needs the least, to be precise).

5. SELF JOIN :

It is not a different form of JOIN, rather it is a JOIN (INNER, OUTER, etc) of a table to itself.

JOINs based on Operators

Depending on the operator used for a JOIN clause, there can be two types of JOINs. They are

1. Equi JOIN
2. Theta JOIN

1. Equi JOIN :

For whatever JOIN type (INNER, OUTER, etc), if we use ONLY the equality operator (=), then we say that the JOIN is an EQUI JOIN.

2. Theta JOIN :

This is same as EQUI JOIN but it allows all other operators like >, <, >= etc.

Many consider both EQUI JOIN and Theta JOIN similar to INNER, OUTER etc JOINs. But I strongly believe that its a mistake and makes the ideas vague. Because INNER JOIN, OUTER JOIN etc are all connected with the tables and their data whereas EQUI JOIN and THETA JOIN are only connected with the operators we use in the former.

Again, there are many who consider NATURAL JOIN as some sort of "peculiar" EQUI JOIN. In fact, it is true, because of the first condition I mentioned for NATURAL JOIN. However, we don't have to restrict that simply to NATURAL JOINs alone. INNER JOINs, OUTER JOINs etc could be an EQUI JOIN too.

One thing I've learnt the hard way is being consistent

Watch out for mixing:

 import { BehaviorSubject } from "rxjs";

with

 import { BehaviorSubject } from "rxjs/BehaviorSubject";

This will probably work just fine UNTIL you try to pass the object to another class (where you did it the other way) and then this can fail

 (myBehaviorSubject instanceof Observable)

It fails because the prototype chain will be different and it will be false.

I can't pretend to understand exactly what is happening but sometimes I run into this and need to change to the longer format.

What happens when you set all of the attributes in one attr() command like so

$(this).attr({
               id : this.id + '_' + new_id,
               name: this.name + '_' + new_id,
               value: 'test' 
             });

You set the CSS to :

#elementID {
    background: black url(http://www.electrictoolbox.com/images/rangitoto-3072x200.jpg) center no-repeat;
    height: 200px;
}

It centers the image, but does not scale it.

FIDDLE

In newer browsers you can use the background-size property and do:

#elementID {
    height: 200px; 
    width: 100%;
    background: black url(http://www.electrictoolbox.com/images/rangitoto-3072x200.jpg) no-repeat;
    background-size: 100% 100%;
}

FIDDLE

Other than that, a regular image is one way to do it, but then it's not really a background image.

?

With rabbitmqadmin you can remove them with this one-liner:

rabbitmqadmin -f tsv -q list queues name | while read queue; do rabbitmqadmin -q delete queue name=${queue}; done

Even though setting a CSS height value to the select element does not work, the padding attribute works alright. Setting a top and bottom padding will make your select element look taller.

To stash a single file use git stash --patch [file].

This is going to prompt: Stash this hunk [y,n,q,a,d,j,J,g,/,e,?]? ?. Just type a (stash this hunk and all later hunks in the file) and you're fine.