I had this when build my application with "All cpu" target while it referenced a 3rd party x64-only (managed) dll.

Ended up writing this today and seems to be ok. Your usage could be:

await TaskEx.WaitUntil(isExcelInteractive);

code (including the inverse operation)

public static class TaskEx
{
    /// <summary>
    /// Blocks while condition is true or timeout occurs.
    /// </summary>
    /// <param name="condition">The condition that will perpetuate the block.</param>
    /// <param name="frequency">The frequency at which the condition will be check, in milliseconds.</param>
    /// <param name="timeout">Timeout in milliseconds.</param>
    /// <exception cref="TimeoutException"></exception>
    /// <returns></returns>
    public static async Task WaitWhile(Func<bool> condition, int frequency = 25, int timeout = -1)
    {
        var waitTask = Task.Run(async () =>
        {
            while (condition()) await Task.Delay(frequency);
        });

        if(waitTask != await Task.WhenAny(waitTask, Task.Delay(timeout)))
            throw new TimeoutException();
    }

    /// <summary>
    /// Blocks until condition is true or timeout occurs.
    /// </summary>
    /// <param name="condition">The break condition.</param>
    /// <param name="frequency">The frequency at which the condition will be checked.</param>
    /// <param name="timeout">The timeout in milliseconds.</param>
    /// <returns></returns>
    public static async Task WaitUntil(Func<bool> condition, int frequency = 25, int timeout = -1)
    {
        var waitTask = Task.Run(async () =>
        {
            while (!condition()) await Task.Delay(frequency);
        });

        if (waitTask != await Task.WhenAny(waitTask, 
                Task.Delay(timeout))) 
            throw new TimeoutException();
    }
}

Example usage: https://dotnetfiddle.net/Vy8GbV

Until version 4.6

The dash type of a linestyle is given by the linetype, which does also select the line color unless you explicitely set an other one with linecolor.

However, the support for dashed lines depends on the selected terminal:

1. Some terminals don't support dashed lines, like png (uses libgd)
2. Other terminals, like pngcairo, support dashed lines, but it is disables by default. To enable it, use set termoption dashed, or set terminal pngcairo dashed ....
3. The exact dash patterns differ between terminals. To see the defined linetype, use the test command:

Running

set terminal pngcairo dashed
set output 'test.png'
test
set output

gives:

whereas, the postscript terminal shows different dash patterns:

set terminal postscript eps color colortext
set output 'test.eps'
test
set output

Version 5.0

Starting with version 5.0 the following changes related to linetypes, dash patterns and line colors are introduced:

• A new dashtype parameter was introduced:

  To get the predefined dash patterns, use e.g.

  plot x dashtype 2
  

  You can also specify custom dash patterns like

  plot x dashtype (3,5,10,5),\
       2*x dashtype '.-_'
  

• The terminal options dashed and solid are ignored. By default all lines are solid. To change them to dashed, use e.g.

  set for [i=1:8] linetype i dashtype i
  

• The default set of line colors was changed. You can select between three different color sets with set colorsequence default|podo|classic:

I've use this :

except (socket.timeout, KeyboardInterrupt) as e:
    logging.debug("Exception : {}".format(str(e.__str__).split(" ")[3]))
    break

Let me know if it does not work for you !!

To add to @luke-west 's excellent answer:

When using CocoaPods

After step 2:

1. Quit XCode.
2. In the master folder, rename OLD.xcworkspace to NEW.xcworkspace.

After step 4:

1. In XCode: choose and edit Podfile from the project navigator. You should see a target clause with the OLD name. Change it to NEW.
2. Quit XCode.
3. In the project folder, delete the OLD.podspec file.
4. rm -rf Pods/
5. Run pod install.
6. Open XCode.
7. Click on your project name in the project navigator.
8. In the main pane, switch to the Build Phases tab.
9. Under Link Binary With Libraries, look for libPods-OLD.a and delete it.
10. If you have an objective-c Bridging header go to Build settings and change the location of the header from OLD/OLD-Bridging-Header.h to NEW/NEW-Bridging-Header.h
11. Clean and run.

I'd recommend that you take a look at: A Practical Guide to Writing Clients and Servers

What you have to implement in incremental steps is:

1. Get your basic TCP sockets layer running (listen on port/ports, accept client connections and send/receive data).
2. Implement a buffered reader so that you can read requests one line (delimited by CRLF) at a time.
3. Read the very first line. Parse out the method, the request version and the path.
4. Implement header parsing for the "Header: value" syntax. Don't forget unfolding folded headers.
5. Check the request method, content type and content size to determine how/if the body will be read.
6. Implement decoding of content based on content type.
7. If you're going to support HTTP 1.1, implement things like "100 Continue", keep-alive, chunked transfer.
8. Add robustness/security measures like detecting incomplete requests, limiting max number of clients etc.
9. Shrink wrap your code and open-source it :)

Check out my answer here: Git submodules: Specify a branch/tag

If you want, you can add the "branch = master" line into your .gitmodules file manually. Read the link to see what I mean.

EDIT: To track an existing submodule project at a branch, follow VonC's instructions here instead:

Git submodules: Specify a branch/tag

If you have an iframe in your modal, you can remove its content by the following code:

$('#myModal').on('hidden.bs.modal', function(){
   $(this).find('iframe').html("");
   $(this).find('iframe').attr("src", "");
});

Simple is better, one variable, one function :)

const counts = arr.reduce((acc, value) => ({
   ...acc,
   [value]: (acc[value] || 0) + 1
}), {});

You can use the history methods outside of your components. Try by the following way.

First, create a history object used the history package:

// src/history.js

import { createBrowserHistory } from 'history';

export default createBrowserHistory();

Then wrap it in <Router> (please note, you should use import { Router } instead of import { BrowserRouter as Router }):

// src/index.jsx

// ...
import { Router, Route, Link } from 'react-router-dom';
import history from './history';

ReactDOM.render(
  <Provider store={store}>
    <Router history={history}>
      <div>
        <ul>
          <li><Link to="/">Home</Link></li>
          <li><Link to="/login">Login</Link></li>
        </ul>
        <Route exact path="/" component={HomePage} />
        <Route path="/login" component={LoginPage} />
      </div>
    </Router>
  </Provider>,
  document.getElementById('root'),
);

Change your current location from any place, for example:

// src/actions/userActionCreators.js

// ...
import history from '../history';

export function login(credentials) {
  return function (dispatch) {
    return loginRemotely(credentials)
      .then((response) => {
        // ...
        history.push('/');
      });
  };
}

UPD: You can also see a slightly different example in React Router FAQ.

c# code:

public Bitmap MakeElemScreenshot( IWebDriver driver, WebElement elem)
{
    Screenshot myScreenShot = ((ITakesScreenshot)driver).GetScreenshot();

    Bitmap screen = new Bitmap(new MemoryStream(myScreenShot.AsByteArray));
    Bitmap elemScreenshot = screen.Clone(new Rectangle(elem.Location, elem.Size), screen.PixelFormat);

    screen.Dispose();

    return elemScreenshot;
}

import datetime
mydate = datetime.datetime.now()
mydate.strftime("%B") # 'December'
mydate.strftime("%b") # 'dec'

To keep the accordion nature intact when wanting to also use 'hide' and 'show' functions like .collapse( 'hide' ), you must initialize the collapsible panels with the parent property set in the object with toggle: false before making any calls to 'hide' or 'show'

// initialize collapsible panels
$('#accordion .collapse').collapse({
  toggle: false,
  parent: '#accordion'
});

// show panel one (will collapse others in accordion)
$( '#collapseOne' ).collapse( 'show' );

// show panel two (will collapse others in accordion)
$( '#collapseTwo' ).collapse( 'show' );

// hide panel two (will not collapse/expand others in accordion)
$( '#collapseTwo' ).collapse( 'hide' );

I would recommend using an actual anchor element, and set it as block.

<div class="divBox">
    <a href="#">Link</a>
</div>

.divBox
{
    width: 300px;
    height: 100px;
}
.divBox a
{
    width: 100%;
    height: 100%;
    display: block;
}

This will set the anchor to the same dimensions of the parent div.

std::string::compare() returns an int:

• equal to zero if s and t are equal,
• less than zero if s is less than t,
• greater than zero if s is greater than t.

If you want your first code snippet to be equivalent to the second one, it should actually read:

if (!s.compare(t)) {
    // 's' and 't' are equal.
}

The equality operator only tests for equality (hence its name) and returns a bool.

To elaborate on the use cases, compare() can be useful if you're interested in how the two strings relate to one another (less or greater) when they happen to be different. PlasmaHH rightfully mentions trees, and it could also be, say, a string insertion algorithm that aims to keep the container sorted, a dichotomic search algorithm for the aforementioned container, and so on.

EDIT: As Steve Jessop points out in the comments, compare() is most useful for quick sort and binary search algorithms. Natural sorts and dichotomic searches can be implemented with only std::less.

Use an AppDomain

It is safer and more flexible to load the assembly into its own AppDomain first.

So instead of the answer given previously:

var asm = Assembly.LoadFile(@"C:\myDll.dll");
var type = asm.GetType("TestRunner");
var runnable = Activator.CreateInstance(type) as IRunnable;
if (runnable == null) throw new Exception("broke");
runnable.Run();

I would suggest the following (adapted from this answer to a related question):

var domain = AppDomain.CreateDomain("NewDomainName");
var t = typeof(TypeIWantToLoad);
var runnable = domain.CreateInstanceFromAndUnwrap(@"C:\myDll.dll", t.Name) as IRunnable;
if (runnable == null) throw new Exception("broke");
runnable.Run();

Now you can unload the assembly and have different security settings.

If you want even more flexibility and power for dynamic loading and unloading of assemblies, you should look at the Managed Add-ins Framework (i.e. the System.AddIn namespace). For more information, see this article on Add-ins and Extensibility on MSDN.

That's now how PHP works. test() will execute when the page is loaded, not when the submit button is clicked.

To do this sort of thing, you have to have the onclick attribute do an AJAX call to a PHP file.

in HTML:

<a class="main-item" (click)="onNavigate()">Go to URL</a>

OR

<button class="main-item" (click)="onNavigate()">Go to URL</button>

in TS file:

onNavigate(){
    // your logic here.... like set the url 
    const url = 'https://www.google.com';
    window.open(url, '_blank');
}

Why for? What do you want to iterate? Try this.

call :cpy pc-name-1
call :cpy pc-name-2
...

:cpy
net use \\%1\{destfolder} {password} /user:{username}
copy {file} \\%1\{destfolder}
goto :EOF

Type in:

Arrays.asList(TYPES).indexOf("Sedan");

I like Zakaria's answer, but if you're in a project where your team doesn't want to use that approach, and you're stuck trying to construct something with a String, integer, float, or primative type from a property file into the constructor, then you can use Spring's @Value annotation on the parameter in the constructor.

For example, I had an issue where I was trying to pull a string property into my constructor for a class annotated with @Service. My approach works for @Service, but I think this approach should work with any spring java class, if it has an annotation (such as @Service, @Component, etc.) which indicate that Spring will be the one constructing instances of the class.

Let's say in some yaml file (or whatever configuration you're using), you have something like this:

some:
    custom:
        envProperty: "property-for-dev-environment"

and you've got a constructor:

@Service // I think this should work for @Component, or any annotation saying Spring is the one calling the constructor.
class MyClass {
...
    MyClass(String property){
    ...
    }
...
}

This won't run as Spring won't be able to find the string envProperty. So, this is one way you can get that value:

class MyDynamoTable
import org.springframework.beans.factory.annotation.Value;
...
    MyDynamoTable(@Value("${some.custom.envProperty}) String property){
    ...
    }
...

In the above constructor, Spring will call the class and know to use the String "property-for-dev-environment" pulled from my yaml configuration when calling it.

NOTE: this I believe @Value annotation is for strings, intergers, and I believe primative types. If you're trying to pass custom classes (beans), then approaches in answers defined above work.

From oracle documentation page on Joins

The join method allows one thread to wait for the completion of another.

If t1 is a Thread object whose thread is currently executing,

t1.join() : causes the current thread to pause execution until t1's thread terminates.

If t2 is a Thread object whose thread is currently executing,

t2.join(); causes the current thread to pause execution until t2's thread terminates.

join API is low level API, which has been introduced in earlier versions of java. Lot of things have been changed over a period of time (especially with jdk 1.5 release) on concurrency front.

You can achieve the same with java.util.concurrent API. Some of the examples are

1. Using invokeAll on ExecutorService
2. Using CountDownLatch
3. Using ForkJoinPool or newWorkStealingPool of Executors(since java 8)

Refer to related SE questions:

wait until all threads finish their work in java

For short delays (say, some microseconds) on Linux OS, you can use "usleep":

// C Program to perform short delays
#include <unistd.h>
#include <stdio.h>

int main(){
    printf("Hello!\n");
    usleep(1000000); // For a 1-second delay
    printf("Bye!\n);
    return 0;

If you're on OSX you can also find it your keychain. Your developer and distribution certificates have your Team ID in them.

Applications -> Utilities -> Keychain Access.

Under the 'login' Keychain, go into the 'Certificates' category.

Scroll to find your development or distribution certificate. They will read:

iPhone Distribution: Team Name (certificate id)

or

iPhone Developer: Team Name (certificate id)

Simply double-click on the item, and the

"Organizational Unit"

is the "Team ID"

Note that this is the only way to find your

"Personal team" ID

You can not find the "Personal team" ID on the Apple web interface.

For example, if you are automating a build from say Unity, during development you'll want it to appear in Xcode as your "Personal team" - this is the only way to get that value.

Simple way:

public IDictionary<T, V> toDictionary<T, V>(Object objAttached)
{
    var dicCurrent = new Dictionary<T, V>();
    foreach (DictionaryEntry dicData in (objAttached as IDictionary))
    {
        dicCurrent.Add((T)dicData.Key, (V)dicData.Value);
    }
    return dicCurrent;
}

In /data/app but for copy protection I don't think you can access it.

Yes. Instead of passing in the instance attribute at class definition time, check it at runtime:

def check_authorization(f):
    def wrapper(*args):
        print args[0].url
        return f(*args)
    return wrapper

class Client(object):
    def __init__(self, url):
        self.url = url

    @check_authorization
    def get(self):
        print 'get'

>>> Client('http://www.google.com').get()
http://www.google.com
get

The decorator intercepts the method arguments; the first argument is the instance, so it reads the attribute off of that. You can pass in the attribute name as a string to the decorator and use getattr if you don't want to hardcode the attribute name:

def check_authorization(attribute):
    def _check_authorization(f):
        def wrapper(self, *args):
            print getattr(self, attribute)
            return f(self, *args)
        return wrapper
    return _check_authorization

This is an answer I've already given some time ago:

It depends entirely on the domain-specific application needs. A lot of times direct text file/binary files access can be extremely fast, efficient, as well as providing you all the file access capabilities of your OS's file system.

Furthermore, your programming language most likely already has a built-in module (or is easy to make one) for specific parsing.

If what you need is many appends (INSERTS?) and sequential/few access little/no concurrency, files are the way to go.

On the other hand, when your requirements for concurrency, non-sequential reading/writing, atomicity, atomic permissions, your data is relational by the nature etc., you will be better off with a relational or OO database.

There is a lot that can be accomplished with SQLite3, which is extremely light (under 300kb), ACID compliant, written in C/C++, and highly ubiquitous (if it isn't already included in your programming language -for example Python-, there is surely one available). It can be useful even on db files as big as 140 terabytes, or 128 tebibytes (Link to Database Size), possible more.

If your requirements where bigger, there wouldn't even be a discussion, go for a full-blown RDBMS.

As you say in a comment that "the system" is merely a bunch of scripts, then you should take a look at pgbash.

Use ALTER TABLE with DROP COLUMN to drop a column from a table, and CHANGE or MODIFY to change a column.

ALTER TABLE tbl_Country DROP COLUMN IsDeleted;
ALTER TABLE tbl_Country MODIFY IsDeleted tinyint(1) NOT NULL;
ALTER TABLE tbl_Country CHANGE IsDeleted IsDeleted tinyint(1) NOT NULL;

The first thing that comes to mind for me is:

verts = [None]*1000

But do you really need to preinitialize it?

In pre Sql 2008 By taking out the date part:

GROUP BY CONVERT(CHAR(8),DateTimeColumn,10)

This task can be accomplished using one of the android's main building block named as Intents and One of the methods public void startActivity (Intent intent) which belongs to your Activity class.

An intent is an abstract description of an operation to be performed. It can be used with startActivity to launch an Activity, broadcastIntent to send it to any interested BroadcastReceiver components, and startService(Intent) or bindService(Intent, ServiceConnection, int) to communicate with a background Service.

An Intent provides a facility for performing late runtime binding between the code in different applications. Its most significant use is in the launching of activities, where it can be thought of as the glue between activities. It is basically a passive data structure holding an abstract description of an action to be performed.

Refer the official docs -- http://developer.android.com/reference/android/content/Intent.html

public void startActivity (Intent intent) -- Used to launch a new activity.

So suppose you have two Activity class and on a button click's OnClickListener() you wanna move from one Activity to another then --

1. PresentActivity -- This is your current activity from which you want to go the second activity.

2. NextActivity -- This is your next Activity on which you want to move (It may contain anything like you are saying dialog box).

So the Intent would be like this

Intent(PresentActivity.this, NextActivity.class)

Finally this will be the complete code

  public class PresentActivity extends Activity {
        protected void onCreate(Bundle icicle) {
            super.onCreate(icicle);

            setContentView(R.layout.content_layout_id);

            final Button button = (Button) findViewById(R.id.button_id);
            button.setOnClickListener(new View.OnClickListener() {
                public void onClick(View v) {
                    // Perform action on click   

                    Intent activityChangeIntent = new Intent(PresentActivity.this, NextActivity.class);

                    // currentContext.startActivity(activityChangeIntent);

                    PresentActivity.this.startActivity(activityChangeIntent);
                }
            });
        }
    }

This exmple is related to button click you can use the code anywhere which is written inside button click's OnClickListener() at any place where you want to switch between your activities.

<input type="button" /> buttons will not submit a form - they don't do anything by default. They're generally used in conjunction with JavaScript as part of an AJAX application.

<input type="submit"> buttons will submit the form they are in when the user clicks on them, unless you specify otherwise with JavaScript.

import com.google.common.base.Joiner;

Joiner.on(",").join(ids);

or you can use StringUtils:

   public static String join(Object[] array,
                              char separator)

   public static String join(Iterable<?> iterator,
                              char separator)

Joins the elements of the provided array/iterable into a single String containing the provided list of elements.

http://commons.apache.org/proper/commons-lang/javadocs/api-3.3.2/org/apache/commons/lang3/StringUtils.html

1. Copy the code you want somewhere outside your workspace folder
2. Create a new project using existing code from that folder
3. Once the project is created, right click on it and Refactor > Move it into the Workspace folder. (use default location)

Problem: Wamp Won't Turn Green & VCRUNTIME140.dll error

Solved:)

You need C++ Redistributable for Visual Studio 2015 RC. Try to download the file, vc_redist.x64.exe from here, https://www.microsoft.com/en-us/download/details.aspx?id=48145

if you already installed then uninstalled it first

1. I installed the vc_redist.x64.exe (if you OS is 32 bit then you should download vc_redist.x86.exe)
2. then installed the wampserver (if you already installed then unsintalled it first)

If you create a java class with public static void main(String[] args), Eclipse will run that main method for you by right clicking on the file itself, or on the file in the project explorer, then choosing:

"Run As" -> "Java Application."

Once you do this, Eclipse stores information about your class, so you can easily run the class again from the Run As menu (Green Play Button on the toolbar) or from the Run Configurations dialog.

If you subsequently MOVE the java class (manually, or however), then again choose

"Run As" -> "Java Application,"

from the new location, Eclipse will run the original stored configuration, attempt to invoke this class from its original location, which causes this error.

"Run As" -> "Java Application"

Eclipse will write a new configuration for the moved class, and the error will go away.

simple 2 line jquery to strip the html.

 var content = "<p>checking the html source&nbsp;</p><p>&nbsp;
  </p><p>with&nbsp;</p><p>all</p><p>the html&nbsp;</p><p>content</p>";

 var text = $(content).text();//It gets you the plain text
 console.log(text);//check the data in your console

 cj("#text_area_id").val(text);//set your content to text area using text_area_id

The best way is to use menu mnemonics, i.e. to have menu entries in your main form that get assigned the keyboard shortcut you want. Then everything else is handled internally and all you have to do is to implement the appropriate action that gets executed in the Click event handler of that menu entry.

If you need to remove the HTML but does not know if it actually contains any HTML tags, you can't use the jQuery method directly because it returns empty wrapper for non-HTML text.

$('<div>Hello world</div>').text(); //returns "Hello world"
$('Hello world').text(); //returns empty string ""

You must either wrap the text in valid HTML:

$('<div>' + 'Hello world' + '</div>').text();

Or use method $.parseHTML() (since jQuery 1.8) that can handle both HTML and non-HTML text:

var html = $.parseHTML('Hello world'); //parseHTML return HTMLCollection
var text = $(html).text(); //use $() to get .text() method

Plus parseHTML removes script tags completely which is useful as anti-hacking protection for user inputs.

$('<p>Hello world</p><script>console.log(document.cookie)</script>').text();
//returns "Hello worldconsole.log(document.cookie)"

$($.parseHTML('<p>Hello world</p><script>console.log(document.cookie)</script>')).text();
//returns "Hello world"

Single liner works

df['Name'] = 'abc'

Creates a Name column and sets all rows to abc value

bool? a = null;
bool b = Convert.toBoolean(a); 

Update:

Django 2.2 version now has a bulk_update.

Old answer:

Refer to the following django documentation section

Updating multiple objects at once

In short you should be able to use:

ModelClass.objects.filter(name='bar').update(name="foo")

You can also use F objects to do things like incrementing rows:

from django.db.models import F
Entry.objects.all().update(n_pingbacks=F('n_pingbacks') + 1)

See the documentation.

However, note that:

• This won't use ModelClass.save method (so if you have some logic inside it won't be triggered).
• No django signals will be emitted.
• You can't perform an .update() on a sliced QuerySet, it must be on an original QuerySet so you'll need to lean on the .filter() and .exclude() methods.

Had the same problem. My solution is next:

$("#element").droppable({
    drop: function( event, ui ) {

        // position of the draggable minus position of the droppable
        // relative to the document
        var $newPosX = ui.offset.left - $(this).offset().left;
        var $newPosY = ui.offset.top - $(this).offset().top;

    }
});

As I felt similarly confused with .transform operation vs. .apply I found a few answers shedding some light on the issue. This answer for example was very helpful.

My takeout so far is that .transform will work (or deal) with Series (columns) in isolation from each other. What this means is that in your last two calls:

df.groupby('A').transform(lambda x: (x['C'] - x['D']))
df.groupby('A').transform(lambda x: (x['C'] - x['D']).mean())

You asked .transform to take values from two columns and 'it' actually does not 'see' both of them at the same time (so to speak). transform will look at the dataframe columns one by one and return back a series (or group of series) 'made' of scalars which are repeated len(input_column) times.

So this scalar, that should be used by .transform to make the Series is a result of some reduction function applied on an input Series (and only on ONE series/column at a time).

Consider this example (on your dataframe):

zscore = lambda x: (x - x.mean()) / x.std() # Note that it does not reference anything outside of 'x' and for transform 'x' is one column.
df.groupby('A').transform(zscore)

will yield:

       C      D
0  0.989  0.128
1 -0.478  0.489
2  0.889 -0.589
3 -0.671 -1.150
4  0.034 -0.285
5  1.149  0.662
6 -1.404 -0.907
7 -0.509  1.653

Which is exactly the same as if you would use it on only on one column at a time:

df.groupby('A')['C'].transform(zscore)

yielding:

0    0.989
1   -0.478
2    0.889
3   -0.671
4    0.034
5    1.149
6   -1.404
7   -0.509

Note that .apply in the last example (df.groupby('A')['C'].apply(zscore)) would work in exactly the same way, but it would fail if you tried using it on a dataframe:

df.groupby('A').apply(zscore)

gives error:

ValueError: operands could not be broadcast together with shapes (6,) (2,)

So where else is .transform useful? The simplest case is trying to assign results of reduction function back to original dataframe.

df['sum_C'] = df.groupby('A')['C'].transform(sum)
df.sort('A') # to clearly see the scalar ('sum') applies to the whole column of the group

yielding:

     A      B      C      D  sum_C
1  bar    one  1.998  0.593  3.973
3  bar  three  1.287 -0.639  3.973
5  bar    two  0.687 -1.027  3.973
4  foo    two  0.205  1.274  4.373
2  foo    two  0.128  0.924  4.373
6  foo    one  2.113 -0.516  4.373
7  foo  three  0.657 -1.179  4.373
0  foo    one  1.270  0.201  4.373

Trying the same with .apply would give NaNs in sum_C. Because .apply would return a reduced Series, which it does not know how to broadcast back:

df.groupby('A')['C'].apply(sum)

giving:

A
bar    3.973
foo    4.373

There are also cases when .transform is used to filter the data:

df[df.groupby(['B'])['D'].transform(sum) < -1]

     A      B      C      D
3  bar  three  1.287 -0.639
7  foo  three  0.657 -1.179

I hope this adds a bit more clarity.

There are few mistakes you are doing:

1. You need to add proper object in the array in addRow method
2. You can use splice method to remove an element from an array at particular index.
3. You need to pass the current row as prop to my-item component, where this can be modified.

You can see working code here.

addRow(){
   this.rows.push({description: '', unitprice: '' , code: ''}); // what to push unto the rows array?
},
removeRow(index){
   this. itemList.splice(index, 1)
}

Have you included the System.Web assembly in the application?

using System.Web;

If not, try specifying the System.Web namespace, for example:

 System.Web.HttpContext.Current

The accepted answer explains already well why the warning occurs. If you simply want to control the warnings, one could use precision_recall_fscore_support. It offers a (semi-official) argument warn_for that could be used to mute the warnings.

(_, _, f1, _) = metrics.precision_recall_fscore_support(y_test, y_pred,
                                                        average='weighted', 
                                                        warn_for=tuple())

As mentioned already in some comments, use this with care.

You have to run the development server such that it listens on the interface to your network.

E.g.

python manage.py runserver 0.0.0.0:8000

listens on every interface on port 8000.

It doesn't matter whether you access the webserver with the IP or the hostname. I guess you are still in your own LAN.
If you really want to access the server from outside, you also have to configure your router to forward port e.g. 8000 to your server.

Check your firewall on your server whether incoming connections to the port in use are allowed!

Assuming you can access your Apache server from the outside successfully, you can also try this:

• Stop the Apache server, so that port 80 is free.
• Start the development server with sudo python manage.py runserver 0.0.0.0:80

For Java 1.8 and higher you must set

-Djdk.http.auth.tunneling.disabledSchemes=

to make proxies with Basic Authorization working with https along with Authenticator as mentioned in accepted answer

AFAIK there isn't a standard "reverse_iterator" sort of thing in the standard library that supports the for-each syntax which is already a syntactic sugar they brought late into the language.

You could do something like for(Item element: myList.clone().reverse()) and pay the associated price.

This also seems fairly consistent with the apparent phenomenon of not giving you convenient ways to do expensive operations - since a list, by definition, could have O(N) random access complexity (you could implement the interface with a single-link), reverse iteration could end up being O(N^2). Of course, if you have an ArrayList, you don't pay that price.

In Very simple words,

Blank is different than null.

null is purely database-related, whereas blank is validation-related(required in form).

If null=True, Django will store empty values as NULL in the database. If a field has blank=True, form validation will allow entry of an empty value. If a field has blank=False, the field will be required.

Open ssh and execute the command manually?

php /path/to/your/file.php

For HashMap DEFAULT_INITIAL_CAPACITY = 16 and DEFAULT_LOAD_FACTOR = 0.75f it means that MAX number of ALL Entries in the HashMap = 16 * 0.75 = 12. When the thirteenth element will be added capacity (array size) of HashMap will be doubled! Perfect illustration answered this question: image is taken from here:

https://javabypatel.blogspot.com/2015/10/what-is-load-factor-and-rehashing-in-hashmap.html

Use attribute binding syntax instead

<ol class="viewer-nav"><li *ngFor="let section of sections" 
    [attr.data-sectionvalue]="section.value">{{ section.text }}</li>  
</ol>

or

<ol class="viewer-nav"><li *ngFor="let section of sections" 
    attr.data-sectionvalue="{{section.value}}">{{ section.text }}</li>  
</ol>

See also :

• How to add conditional attribute in Angular 2?

# -*- coding: utf-8 -*- is a Python 2 thing. In Python 3+, the default encoding of source files is already UTF-8 and that line is useless.

See: Should I use encoding declaration in Python 3?

pyupgrade is a tool you can run on your code to remove those comments and other no-longer-useful leftovers from Python 2, like having all your classes inherit from object.

There is a new way using transforms. Apply this to the element to centre. It nudges down by half the container height and then 'corrects' by half the element height.

position: relative;
top: 50%;
transform: translateY(-50%);
-webkit-transform: translateY(-50%);
-ms-transform: translateY(-50%);

It works most of the time. I did have a problem where a div was in a div in a li. The list item had a height set and the outer divs made up 3 columns (Foundation). The 2nd and 3rd column divs contained images, and they centered just fine with this technique, however the heading in the first column needed a wrapping div with an explicit height set.

Now, does anyone know if the CSS people are working on a way to align stuff, like, easily? Seeing that its 2014 and even some of my friends are regularly using the internet, I wondered if anyone had considered that centering would be a useful styling feature yet. Just us then?

@echo off
for %%f in (*.txt) do (
    ren "%%~nf%%~xf" "%%~nf 1.1%%~xf"
)

Try position:sticky on parent div of the element you want to be fixed.

More info here: http://html5-demos.appspot.com/static/css/sticky.html. Caution: Check for browser version compatibility.

Laravel Collection implements the PHP ArrayAccess interface (which is why using foreach is possible in the first place).

If you have the key already you can just use PHP unset.

I prefer this, because it clearly modifies the collection in place, and is easy to remember.

foreach ($collection as $key => $value) {
    unset($collection[$key]);
}

Here the steps I used to fix the warning:

• Unload project in VS
• Edit .csproj file
• Search for all references to Newtonsoft.Json assembly
  • Found two, one to v6 and one to v5
  • Replace the reference to v5 with v6
• Reload project
• Build and notice assembly reference failure
• View References and see that there are now two to Newtonsoft.Json. Remove the one that's failing to resolve.
• Rebuild - no warnings

I am a newbie to Python. But this code worked for me which converts the specified input I provide to datetime. Here's the code. Correct me if I'm wrong.

import sys
from datetime import datetime
from time import mktime, strptime

user_date = '02/15/1989'
if user_date is not None:
     user_date = datetime.strptime(user_date,"%m/%d/%Y")
else:
     user_date = datetime.now()
print user_date

Use this:

static int RandomNumber(int min, int max)
{
    Random random = new Random(); return random.Next(min, max);

}

This is example for you to modify and use in your application.

To show vertical scroll bar in your div you need to add

height: 100px;   
overflow-y : scroll;

or

height: 100px; 
overflow-y : auto;

Not gonna happen with CSS only

Inline javascript

<a href='index.html' 
    onmouseover='this.style.textDecoration="none"' 
    onmouseout='this.style.textDecoration="underline"'>
    Click Me
</a>

In a working draft of the CSS2 spec it was declared that you could use pseudo-classes inline like this:

<a href="http://www.w3.org/Style/CSS"
   style="{color: blue; background: white}  /* a+=0 b+=0 c+=0 */
      :visited {color: green}           /* a+=0 b+=1 c+=0 */
      :hover {background: yellow}       /* a+=0 b+=1 c+=0 */
      :visited:hover {color: purple}    /* a+=0 b+=2 c+=0 */
     ">
</a>

but it was never implemented in the release of the spec as far as I know.

http://www.w3.org/TR/2002/WD-css-style-attr-20020515#pseudo-rules

.nav ul li a#nav-ask{
    display:none;
}

I had the exact same problem. The problem was that Anaconda had not registered Python in the windows registry.

1) pip install pywin
2) execute this script to register Python in the windows registry
3) download the appropriate package form Corey Goldberg's answer and python will be detected

I solved this problem through the following:

1. In C # I built a String variable.

string userId="";

2. I put my list's item in this variable. I separated the ','.

for example: in C#

userId= "5,44,72,81,126";

and Send to SQL-Server

 SqlParameter param = cmd.Parameters.AddWithValue("@user_id_list",userId);

3. I Create Separated Function in SQL-server For Convert my Received List (that it's type is NVARCHAR(Max)) to Table.

CREATE FUNCTION dbo.SplitInts  
(  
   @List      VARCHAR(MAX),  
   @Delimiter VARCHAR(255)  
)  
RETURNS TABLE  
AS  
  RETURN ( SELECT Item = CONVERT(INT, Item) FROM  
      ( SELECT Item = x.i.value('(./text())[1]', 'varchar(max)')  
        FROM ( SELECT [XML] = CONVERT(XML, '<i>'  
        + REPLACE(@List, @Delimiter, '</i><i>') + '</i>').query('.')  
          ) AS a CROSS APPLY [XML].nodes('i') AS x(i) ) AS y  
      WHERE Item IS NOT NULL  
  );

4. In the main Store Procedure, using the command below, I use the entry list.

SELECT user_id = Item FROM dbo.SplitInts(@user_id_list, ',');

Don't forget that there is a difference between bash's builtin time (which should be called by default when you do time command) and /usr/bin/time (which should require you to call it by its full path).

The builtin time always prints to stderr, but /usr/bin/time will allow you to send time's output to a specific file, so you do not interfere with the executed command's stderr stream. Also, /usr/bin/time's format is configurable on the command line or by the environment variable TIME, whereas bash's builtin time format is only configured by the TIMEFORMAT environment variable.

$ time factor 1234567889234567891 # builtin
1234567889234567891: 142662263 8653780357

real    0m3.194s
user    0m1.596s
sys 0m0.004s
$ /usr/bin/time factor 1234567889234567891
1234567889234567891: 142662263 8653780357
1.54user 0.00system 0:02.69elapsed 57%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+215minor)pagefaults 0swaps
$ /usr/bin/time -o timed factor 1234567889234567891 # log to file `timed`
1234567889234567891: 142662263 8653780357
$ cat timed
1.56user 0.02system 0:02.49elapsed 63%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+217minor)pagefaults 0swaps

Check if your image data contains some header information at the beginning:

imageCode = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMgAAABkC...

This will cause the above error.

Just remove everything in front of and including the first comma, and you good to go.

imageCode = "iVBORw0KGgoAAAANSUhEUgAAAMgAAABkC...

This is a mistake:

m.check(side);

That code has to go inside a function. Your class definition can only contain declarations and functions.

Classes don't "run", they provide a blueprint for how to make an object.

The line Message m; means that an Orderbook will contain Message called m, if you later create an Orderbook.

MKMapView extension based on this answer (+ floating-point zoom level accuracy):

import Foundation
import MapKit

extension MKMapView {
    var zoomLevel: Double {
        get {
            return log2(360 * (Double(self.frame.size.width / 256) / self.region.span.longitudeDelta)) + 1
        }

        set (newZoomLevel){
            setCenterCoordinate(coordinate:self.centerCoordinate, zoomLevel: newZoomLevel, animated: false)
        }
    }

    private func setCenterCoordinate(coordinate: CLLocationCoordinate2D, zoomLevel: Double, animated: Bool) {
        let span = MKCoordinateSpan(latitudeDelta: 0, longitudeDelta: 360 / pow(2, zoomLevel) * Double(self.frame.size.width) / 256)
        setRegion(MKCoordinateRegion(center: coordinate, span: span), animated: animated)
    }
}

Static fields and methods are connected to the class itself and not its instances. If you have a class A, a 'normal' method b, and a static method c, and you make an instance a of your class A, the calls to A.c() and a.b() are valid. Method c() has no idea which instance is connected, so it cannot use non-static fields.

The solution for you is that you either make your fields static or your methods non-static. You main could look like this then:

class Programm {

    public static void main(String[] args) {
        Programm programm = new Programm();
        programm.start();
    }

    public void start() {
        // can now access non-static fields
    }
}

This error also occurs when you try to log in in your test version of the Facebook app and you have not added the user you are trying to test the log in with in the Roles -> Testers section.

To fix it, just add the email address of the Facebook account you are trying to log in with in the section above.

Finally, make sure the user you added accepts the request sent before you try to test otherwise the log in process will fail in the second screen just after the user accept the conditions.

Default user for MySQL is "root", and server "localhost".

The correct answer is as @JaKu pointed out. Tomcat is confining the access to localhost to make it secure. This is as it should be. Port forwarding to tomcat is the correct thing to do, preferably under something secure like SSH.

In my first encounter with this error my user had rights to "write" to the file but not the containing directory. Check the permissions of the directory containing the file.

This problem occurs in the Response.Redirect and Server.Transfer methods, because both methods call Response.End internally.

The solution for this problem is as follows.

For Server.Transfer, use the Server.Execute method instead.

Visit this link for download an example.

You're doing an extra copy if you use ByteArrayOutputStream. If you know the length of the stream before you start reading it (e.g. the InputStream is actually a FileInputStream, and you can call file.length() on the file, or the InputStream is a zipfile entry InputStream, and you can call zipEntry.length()), then it's far better to write directly into the byte[] array -- it uses half the memory, and saves time.

// Read the file contents into a byte[] array
byte[] buf = new byte[inputStreamLength];
int bytesRead = Math.max(0, inputStream.read(buf));

// If needed: for safety, truncate the array if the file may somehow get
// truncated during the read operation
byte[] contents = bytesRead == inputStreamLength ? buf
                  : Arrays.copyOf(buf, bytesRead);

N.B. the last line above deals with files getting truncated while the stream is being read, if you need to handle that possibility, but if the file gets longer while the stream is being read, the contents in the byte[] array will not be lengthened to include the new file content, the array will simply be truncated to the old length inputStreamLength.

A return in the middle of the method is not necessarily bad. It might be better to return immediately if it makes the intent of the code clearer. For example:

double getPayAmount() {
    double result;
    if (_isDead) result = deadAmount();
    else {
        if (_isSeparated) result = separatedAmount();
        else {
            if (_isRetired) result = retiredAmount();
            else result = normalPayAmount();
        };
    }
     return result;
};

In this case, if _isDead is true, we can immediately get out of the method. It might be better to structure it this way instead:

double getPayAmount() {
    if (_isDead)      return deadAmount();
    if (_isSeparated) return separatedAmount();
    if (_isRetired)   return retiredAmount();

    return normalPayAmount();
};   

I've picked this code from the refactoring catalog. This specific refactoring is called: Replace Nested Conditional with Guard Clauses.

I prefer doing a "PAD" to the data. MySql calls it LPAD, but you can work your way around to doing the same thing in SQL Server.

ORDER BY  REPLACE(STR(ColName, 3), SPACE(1), '0') 

This formula will provide leading zeroes based on the Column's length of 3. This functionality is very useful in other situations outside of ORDER BY, so that is why I wanted to provide this option.

Results: 1 becomes 001, and 10 becomes 010, while 100 remains the same.

I wanted to add that if you are using a shared drive, enclose the path in double quotes and keep the backslashes. This is what worked for me:

$cd /path/to/"\\\share\users\username\My Documents\mydirectory\"

I was experiencing the same problem, and after a bit of experimentation I found a solution. In my click handler, I needed to stop the event from bubbling up, like so:

$("a.close").on("click", function(e){
  $("#modal").modal("hide");
  e.stopPropagation();
});

Late to the party as since 2015, Log4J 1.x has reached EOL.

Log4J 2.x onwards the JVM option should be -Dlog4j.configurationFile=<filename>

P.S. <filename> could be a file relative to the class path without the file: as suggested in the other answers.

Note that usage of a SerialPort.DataReceived event is optional. You can set proper timeout using SerialPort.ReadTimeout and continuously call SerialPort.Read() after you wrote something to a port until you get a full response.

Moreover you can use SerialPort.BaseStream property to extract an underlying Stream instance. The benefit of using a Stream is that you can easily utilize various decorators with it:

var port = new SerialPort();
// LoggingStream inherits Stream, implements IDisposable, needen abstract methods and 
// overrides needen virtual methods. 
Stream portStream = new LoggingStream(port.BaseStream);
portStream.Write(...); // Logs write buffer.
portStream.Read(...); // Logs read buffer.

For more information check:

• Top 5 SerialPort Tips article by Kim Hamilton, BCL Team Blog
• C# await event and timeout in serial port communication discussion on StackOverflow

The profiler trace puts it into perspective.

• Query A: 1.3 secs CPU, 1.4 secs duration
• Query B: 2.3 secs CPU, 1.2 secs duration

Query B is using parallelism: CPU > duration eg the query uses 2 CPUs, average 1.15 secs each

Query A is probably not: CPU < duration

This explains cost relative to batch: 17% of the for the simpler, non-parallel query plan.

The optimiser works out that query B is more expensive and will benefit from parallelism, even though it takes extra effort to do so.

Remember though, that query B uses 100% of 2 CPUS (so 50% for 4 CPUs) for one second or so. Query A uses 100% of a single CPU for 1.5 seconds.

The peak for query A is lower, at the expense of increased duration. With one user, who cares? With 100, perhaps it makes a difference...

using System.Web;

var encoded = HttpUtility.HtmlEncode(unencoded);

You can iterate DataTable like this:

private void button1_Click(object sender, EventArgs e)
{
    for(int i = 0; i< dt.Rows.Count;i++)
        for (int j = 0; j <dt.Columns.Count ; j++)
        {
            object o = dt.Rows[i].ItemArray[j];
            //if you want to get the string
            //string s = o = dt.Rows[i].ItemArray[j].ToString();
        }
}

Depending on the type of the data in the DataTable cell, you can cast the object to whatever you want.

For App Engine in 2019, googles has made it easier to set up a custom domain.

1. Google App Engine -> Settings -> Custom Domains

2. Verify your domain

3. Select Your Domain Name Registra

Reminder: Use TXT Record with the value Google provides without a existing CNAME record, otherwise TXT Record will be override

4. Follow the steps on the page, which includes the configuration of your subdomain, CNAME Record, A Record, AAAA Record, and you'll be good to go.

The GUI way in Android Studio

• Have the Android app part of the React Native app open in Android Studio (this just means opening the android folder of your react-native project with Android Studio)
• Go to the "Build" tab at the top
• Go down to "Build Bundle(s) / APK(s)"
• Then select "Build APK(s)"
• This will walk you through a process of locating your keys to sign the APK or creating your keys if you don't have them already which is all very straightforward. If you're just practicing, you can generate these keys and save them to your desktop.
• Once that process is complete and if the build was successful, there will be a popup down below in Android Studio. Click the link within it that says "locate" (the APK)
• That will take you to the apk file, move that over to your android device. Then navigate to that file on the Android device and install it.

Python boolean keywords are True and False, notice the capital letters. So like this:

a = True;
b = True;
match_var = True if a == b else False
print match_var;

When compiled and run, this prints:

True

I don't understand what the meaning of ordering with the same column ASC and DESC in the same ORDER BY, but this how you can do it: naam DESC, naam ASC like so:

ORDER BY `product_category_id` DESC,`naam` DESC, `naam` ASC

There are three ways

1) This runs the GUI editor for the user environment variables. It does exactly what the OP wanted to do and does not prompt for administrative credentials.

rundll32.exe sysdm.cpl,EditEnvironmentVariables

(bonus: This works on Windows Vista to Windows 10 for desktops and Windows Server 2008 through Server 2016. It does not work on Windows NT, 2000, XP, and 2003. However, on the older systems you can use sysdm.cpl without the ",EditEnvironmentVariables" parameter and then navigate to the Advanced tab and then Environment Variables button.)

2) Use the SETX command from the command prompt. This is like the set command but updates the environment that's stored in the registry. Unfortunately, SETX is not as easy to use as the built in SET command. There's no way to list the variables for example. Thus it's impossible to do something such as appending a folder to the user's PATH variable. While SET will display the variables you don't know which ones are user vs. system variables and the PATH that's shown is a combination of both.

3) Use regedit and navigate to HKEY_CURRENT_USER\Environment

Keep in mind that changes to the user's environment does not immediately propagate to all processes currently running for that user. You can see this in a command prompt where your changes will not be visible if you use SET. For example

rem Add a user environment variable named stackoverflow that's set to "test"
setx stackoverflow test
set st

This should show all variables whose names start with the letters "st". If there are none then it displays "Environment variable st not defined". Exit the command prompt and start another. Try set st again and you'll see

stackoverflow=test

To delete the stackoverflow variable use

setx stackoverflow ""

It will respond with "SUCCESS: Specified value was saved." which looks strange given you want to delete the variable. However, if you start a new command prompt then set st will show that there are no variables starting with the letters "st"

(correction - I discovered that setx stackoverflow "" did not delete the variable. It's in the registry as an empty string. The SET command though interprets it as though there is no variable. if not defined stackoverflow echo Not defined says it's not defined.)

There is indentation problem. The code below will work:

import textwrap

def sendMail(FROM,TO,SUBJECT,TEXT,SERVER):
    import smtplib
    """this is some test documentation in the function"""
    message = textwrap.dedent("""\
        From: %s
        To: %s
        Subject: %s
        %s
        """ % (FROM, ", ".join(TO), SUBJECT, TEXT))
    # Send the mail
    server = smtplib.SMTP(SERVER)
    server.sendmail(FROM, TO, message)
    server.quit()

I really don't know how but the bug gone after I done all this:

1

delete implementation 'com.google.android.gms:play-services:12.0.1'

And add

implementation 'com.google.android.gms:play-services-location:12.0.1'
implementation 'com.google.android.gms:play-services-maps:12.0.1'
implementation 'com.google.android.gms:play-services-places:12.0.1'

2

Update git, jdk, change JDK location in Project structure

3

Delete the build folder in my Project

4

Clean and rebuild the Project

If you are getting the following error while connecting the mysql (either local or mysql container running the mysql):

java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed

Solution: Add the following line in your database service:

command: --default-authentication-plugin=mysql_native_password

command to remove cordova and ionic

sudo npm uninstall -g ionic

Html.DisplayFor() will render the DisplayTemplate that matches the property's type.

If it can't find any, I suppose it invokes .ToString().

If you don't know about display templates, they're partial views that can be put in a DisplayTemplates folder inside the view folder associated to a controller.

Example:

If you create a view named String.cshtml inside the DisplayTemplates folder of your views folder (e.g Home, or Shared) with the following code:

@model string

@if (string.IsNullOrEmpty(Model)) {
   <strong>Null string</strong>
}
else {
   @Model
}

Then @Html.DisplayFor(model => model.Title) (assuming that Title is a string) will use the template and display <strong>Null string</strong> if the string is null, or empty.

The extensions methods also provide a ToDictionary extension. It is fairly simple to use, the general usage is passing a lambda selector for the key and getting the object as the value, but you can pass a lambda selector for both key and value.

class SomeObject
{
    public int ID { get; set; }
    public string Name { get; set; }
}

SomeObject[] objects = new SomeObject[]
{
    new SomeObject { ID = 1, Name = "Hello" },
    new SomeObject { ID = 2, Name = "World" }
};

Dictionary<int, string> objectDictionary = objects.ToDictionary(o => o.ID, o => o.Name);

Then objectDictionary[1] Would contain the value "Hello"

1) Locate server.xml in {Tomcat installation folder}\ conf \ 2) Find following similar statement

       <!-- Define a non-SSL HTTP/1.1 Connector on port 8180 -->
      <Connector port="8080" maxHttpHeaderSize="8192"
           maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
           enableLookups="false" redirectPort="8443" acceptCount="100"
           connectionTimeout="20000" disableUploadTimeout="true" />

For example

<Connector port="8181" protocol="HTTP/1.1" 
           connectionTimeout="20000" 
           redirectPort="8443" />

Edit and save the server.xml file. Restart Tomcat. Done

Further reference: http://www.mkyong.com/tomcat/how-to-change-tomcat-default-port/

I had a similar issue where I was receiving NoSuchBeanDefinitionException in Spring Boot (basically while working on CRUD repository), I had to put the below annotations on the main class:

@SpringBootApplication   
@EnableAutoConfiguration
@ComponentScan(basePackages={"<base package name>"})
@EnableJpaRepositories(basePackages="<repository package name>")
@EnableTransactionManagement
@EntityScan(basePackages="<entity package name>")

Also, make sure you have the @Component annotations in place on the implementations.

there's a bootstrap function to change the color of table header called thead-dark for dark background of table header and thead-light for light background of table header. Your code will look like this after using this function.

<table class="table">
    <tr class="thead-danger">
        <!-- here I used dark table headre -->
        <th>
            @Html.DisplayNameFor(model => model.name)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.checkBox1)
        </th>
        <th></th>
    </tr>

In python you must always pass in at least one argument to class methods, the argument is self and it is not meaningless its a reference to the instance itself

Can't change the default browser, but try this (found online a while ago). Add a bookmark in Safari called "Open in Chrome" with the following.

javascript:location.href=%22googlechrome%22+location.href.substring(4);

Will open the current page in Chrome. Not as convenient, but maybe someone will find it useful.

Source

Works for me.

The appropriate LC would be

[entry for tag in tags for entry in entries if tag in entry]

The order of the loops in the LC is similar to the ones in nested loops, the if statements go to the end and the conditional expressions go in the beginning, something like

[a if a else b for a in sequence]

See the Demo -

>>> tags = [u'man', u'you', u'are', u'awesome']
>>> entries = [[u'man', u'thats'],[ u'right',u'awesome']]
>>> [entry for tag in tags for entry in entries if tag in entry]
[[u'man', u'thats'], [u'right', u'awesome']]
>>> result = []
    for tag in tags:
        for entry in entries:
            if tag in entry:
                result.append(entry)


>>> result
[[u'man', u'thats'], [u'right', u'awesome']]

EDIT - Since, you need the result to be flattened, you could use a similar list comprehension and then flatten the results.

>>> result = [entry for tag in tags for entry in entries if tag in entry]
>>> from itertools import chain
>>> list(chain.from_iterable(result))
[u'man', u'thats', u'right', u'awesome']

Adding this together, you could just do

>>> list(chain.from_iterable(entry for tag in tags for entry in entries if tag in entry))
[u'man', u'thats', u'right', u'awesome']

You use a generator expression here instead of a list comprehension. (Perfectly matches the 79 character limit too (without the list call))

There are two ways to do it.

1. In the method that opens the dialog, pass in the following configuration option disableClose as the second parameter in MatDialog#open() and set it to true:

   export class AppComponent {
     constructor(private dialog: MatDialog){}
     openDialog() {
       this.dialog.open(DialogComponent, { disableClose: true });
     }
   }
   

2. Alternatively, do it in the dialog component itself.

   export class DialogComponent {
     constructor(private dialogRef: MatDialogRef<DialogComponent>){
       dialogRef.disableClose = true;
     }
   }
   

Here's what you're looking for:

And here's a Stackblitz demo

Other use cases

Here's some other use cases and code snippets of how to implement them.

Allow esc to close the dialog but disallow clicking on the backdrop to close the dialog

As what @MarcBrazeau said in the comment below my answer, you can allow the esc key to close the modal but still disallow clicking outside the modal. Use this code on your dialog component:

import { Component, OnInit, HostListener } from '@angular/core';
import { MatDialogRef } from '@angular/material';
@Component({
  selector: 'app-third-dialog',
  templateUrl: './third-dialog.component.html'
})
export class ThirdDialogComponent {
  constructor(private dialogRef: MatDialogRef<ThirdDialogComponent>) {      
}
  @HostListener('window:keyup.esc') onKeyUp() {
    this.dialogRef.close();
  }

}

Prevent esc from closing the dialog but allow clicking on the backdrop to close

P.S. This is an answer which originated from this answer, where the demo was based on this answer.

To prevent the esc key from closing the dialog but allow clicking on the backdrop to close, I've adapted Marc's answer, as well as using MatDialogRef#backdropClick to listen for click events to the backdrop.

Initially, the dialog will have the configuration option disableClose set as true. This ensures that the esc keypress, as well as clicking on the backdrop will not cause the dialog to close.

Afterwards, subscribe to the MatDialogRef#backdropClick method (which emits when the backdrop gets clicked and returns as a MouseEvent).

Anyways, enough technical talk. Here's the code:

openDialog() {
  let dialogRef = this.dialog.open(DialogComponent, { disableClose: true });
  /*
     Subscribe to events emitted when the backdrop is clicked
     NOTE: Since we won't actually be using the `MouseEvent` event, we'll just use an underscore here
     See https://stackoverflow.com/a/41086381 for more info
  */
  dialogRef.backdropClick().subscribe(() => {
    // Close the dialog
    dialogRef.close();
  })

  // ...
}

Alternatively, this can be done in the dialog component:

export class DialogComponent {
  constructor(private dialogRef: MatDialogRef<DialogComponent>) {
    dialogRef.disableClose = true;
    /*
      Subscribe to events emitted when the backdrop is clicked
      NOTE: Since we won't actually be using the `MouseEvent` event, we'll just use an underscore here
      See https://stackoverflow.com/a/41086381 for more info
    */
    dialogRef.backdropClick().subscribe(() => {
      // Close the dialog
      dialogRef.close();
    })
  }
}

I was annoyed that you had to always include the namespace and the folder in the string. I wanted to simplify the access to the embedded resources. This is why I wrote this little class. Feel free to use and improve!

Usage:

using(Stream stream = EmbeddedResources.ExecutingResources.GetStream("filename.txt"))
{
 //...
}

Class:

public class EmbeddedResources
{
    private static readonly Lazy<EmbeddedResources> _callingResources = new Lazy<EmbeddedResources>(() => new EmbeddedResources(Assembly.GetCallingAssembly()));

    private static readonly Lazy<EmbeddedResources> _entryResources = new Lazy<EmbeddedResources>(() => new EmbeddedResources(Assembly.GetEntryAssembly()));

    private static readonly Lazy<EmbeddedResources> _executingResources = new Lazy<EmbeddedResources>(() => new EmbeddedResources(Assembly.GetExecutingAssembly()));

    private readonly Assembly _assembly;

    private readonly string[] _resources;

    public EmbeddedResources(Assembly assembly)
    {
        _assembly = assembly;
        _resources = assembly.GetManifestResourceNames();
    }

    public static EmbeddedResources CallingResources => _callingResources.Value;

    public static EmbeddedResources EntryResources => _entryResources.Value;

    public static EmbeddedResources ExecutingResources => _executingResources.Value;

    public Stream GetStream(string resName) => _assembly.GetManifestResourceStream(_resources.Single(s => s.Contains(resName)));

}

$time = 30 * 60; //30 minutes
$start_time = date('Y-m-d h:i:s', time() - $time);
$end_time = date('Y-m-d h:i:s', time() + $time);

If your elements are somehow Comparable (the fact that the order has any real meaning is indifferent -- it just needs to be consistent with your definition of equality), the fastest duplicate removal solution is going to sort the list ( 0(n log(n)) ) then to do a single pass and look for repeated elements (that is, equal elements that follow each other) (this is O(n)).

The overall complexity is going to be O(n log(n)), which is roughly the same as what you would get with a Set (n times long(n)), but with a much smaller constant. This is because the constant in sort/dedup results from the cost of comparing elements, whereas the cost from the set is most likely to result from a hash computation, plus one (possibly several) hash comparisons. If you are using a hash-based Set implementation, that is, because a Tree based is going to give you a O( n log²(n) ), which is even worse.

As I understand it, however, you do not need to remove duplicates, but merely test for their existence. So you should hand-code a merge or heap sort algorithm on your array, that simply exits returning true (i.e. "there is a dup") if your comparator returns 0, and otherwise completes the sort, and traverse the sorted array testing for repeats. In a merge or heap sort, indeed, when the sort is completed, you will have compared every duplicate pair unless both elements were already in their final positions (which is unlikely). Thus, a tweaked sort algorithm should yield a huge performance improvement (I would have to prove that, but I guess the tweaked algorithm should be in the O(log(n)) on uniformly random data)

I had trouble with the most popular answer (overthinking). It put AFolder in the \Server\MyFolder\AFolder and I wanted the contents of AFolder and below in MyFolder. This didn't work.

Copy-Item -Verbose -Path C:\MyFolder\AFolder -Destination \\Server\MyFolder -recurse -Force

Plus I needed to Filter and only copy *.config files.

This didn't work, with "\*" because it did not recurse

Copy-Item -Verbose -Path C:\MyFolder\AFolder\* -Filter *.config -Destination \\Server\MyFolder -recurse -Force

I ended up lopping off the beginning of the path string, to get the childPath relative to where I was recursing from. This works for the use-case in question and went down many subdirectories, which some other solutions do not.

Get-Childitem -Path "$($sourcePath)/**/*.config" -Recurse | 
ForEach-Object {
  $childPath = "$_".substring($sourcePath.length+1)
  $dest = "$($destPath)\$($childPath)" #this puts a \ between dest and child path
  Copy-Item -Verbose -Path $_ -Destination $dest -Force   
}

If you override a parent method in its child, child objects will always use the overridden version. But; you can use the keyword super to call the parent method, inside the body of the child method.

public class PolyTest{
    public static void main(String args[]){
        new Child().foo();
    }

}
class Parent{
    public void foo(){
        System.out.println("I'm the parent.");
    }
}

class Child extends Parent{
    @Override
    public void foo(){
        //super.foo();
        System.out.println("I'm the child.");
    }
}

This would print:

I'm the child.

Uncomment the commented line and it would print:

I'm the parent.

I'm the child.

You should look for the concept of Polymorphism.

from the sourcecode at http://mozilla.github.com/pdf.js/build/pdf.js

/**
 * This is the main entry point for loading a PDF and interacting with it.
 * NOTE: If a URL is used to fetch the PDF data a standard XMLHttpRequest(XHR)
 * is used, which means it must follow the same origin rules that any XHR does
 * e.g. No cross domain requests without CORS.
 *
 * @param {string|TypedAray|object} source Can be an url to where a PDF is
 * located, a typed array (Uint8Array) already populated with data or
 * and parameter object with the following possible fields:
 *  - url   - The URL of the PDF.
 *  - data  - A typed array with PDF data.
 *  - httpHeaders - Basic authentication headers.
 *  - password - For decrypting password-protected PDFs.
 *
 * @return {Promise} A promise that is resolved with {PDFDocumentProxy} object.
 */

So a standard XMLHttpRequest(XHR) is used for retrieving the document. The Problem with this is that XMLHttpRequests do not support data: uris (eg. data:application/pdf;base64,JVBERi0xLjUK...).

But there is the possibility of passing a typed Javascript Array to the function. The only thing you need to do is to convert the base64 string to a Uint8Array. You can use this function found at https://gist.github.com/1032746

var BASE64_MARKER = ';base64,';

function convertDataURIToBinary(dataURI) {
  var base64Index = dataURI.indexOf(BASE64_MARKER) + BASE64_MARKER.length;
  var base64 = dataURI.substring(base64Index);
  var raw = window.atob(base64);
  var rawLength = raw.length;
  var array = new Uint8Array(new ArrayBuffer(rawLength));

  for(var i = 0; i < rawLength; i++) {
    array[i] = raw.charCodeAt(i);
  }
  return array;
}

tl;dr

var pdfAsDataUri = "data:application/pdf;base64,JVBERi0xLjUK..."; // shortened
var pdfAsArray = convertDataURIToBinary(pdfAsDataUri);
PDFJS.getDocument(pdfAsArray)

Had similar issue but with .swiftdoc files.

I have extensions and unit test targets in project. And they had same "Product Module Name" (PRODUCT_MODULE_NAME in Build Settings) as application. After making names unique issue gone.

If you paste

A.do() {
  if (condition1) {
   X.doSomething
  } else if (condition2) {
   Y.doSomethingElse
  } else {
   donotDoAnything
  }
}

onto https://www.zenuml.com. It will generate a diagram for you.

/*
    korzhao
*/

package rand

import (
    crand "crypto/rand"
    "math/rand"
    "sync"
    "time"
    "unsafe"
)

// Doesn't share the rand library globally, reducing lock contention
type Rand struct {
    Seed int64
    Pool *sync.Pool
}

var (
    MRand    = NewRand()
    randlist = []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890")
)

// init random number generator
func NewRand() *Rand {
    p := &sync.Pool{New: func() interface{} {
        return rand.New(rand.NewSource(getSeed()))
    },
    }
    mrand := &Rand{
        Pool: p,
    }
    return mrand
}

// get the seed
func getSeed() int64 {
    return time.Now().UnixNano()
}

func (s *Rand) getrand() *rand.Rand {
    return s.Pool.Get().(*rand.Rand)
}
func (s *Rand) putrand(r *rand.Rand) {
    s.Pool.Put(r)
}

// get a random number
func (s *Rand) Intn(n int) int {
    r := s.getrand()
    defer s.putrand(r)

    return r.Intn(n)
}

//  bulk get random numbers
func (s *Rand) Read(p []byte) (int, error) {
    r := s.getrand()
    defer s.putrand(r)

    return r.Read(p)
}

func CreateRandomString(len int) string {
    b := make([]byte, len)
    _, err := MRand.Read(b)
    if err != nil {
        return ""
    }
    for i := 0; i < len; i++ {
        b[i] = randlist[b[i]%(62)]
    }
    return *(*string)(unsafe.Pointer(&b))
}

24.0 ns/op 16 B/op 1 allocs/

Juan, I made a slight improvement to your method to allow for changing each rectangle corner radius individually:

/** 
 * Draws a rounded rectangle using the current state of the canvas.  
 * If you omit the last three params, it will draw a rectangle  
 * outline with a 5 pixel border radius  
 * @param {Number} x The top left x coordinate 
 * @param {Number} y The top left y coordinate  
 * @param {Number} width The width of the rectangle  
 * @param {Number} height The height of the rectangle 
 * @param {Object} radius All corner radii. Defaults to 0,0,0,0; 
 * @param {Boolean} fill Whether to fill the rectangle. Defaults to false. 
 * @param {Boolean} stroke Whether to stroke the rectangle. Defaults to true. 
 */
CanvasRenderingContext2D.prototype.roundRect = function (x, y, width, height, radius, fill, stroke) {
    var cornerRadius = { upperLeft: 0, upperRight: 0, lowerLeft: 0, lowerRight: 0 };
    if (typeof stroke == "undefined") {
        stroke = true;
    }
    if (typeof radius === "object") {
        for (var side in radius) {
            cornerRadius[side] = radius[side];
        }
    }

    this.beginPath();
    this.moveTo(x + cornerRadius.upperLeft, y);
    this.lineTo(x + width - cornerRadius.upperRight, y);
    this.quadraticCurveTo(x + width, y, x + width, y + cornerRadius.upperRight);
    this.lineTo(x + width, y + height - cornerRadius.lowerRight);
    this.quadraticCurveTo(x + width, y + height, x + width - cornerRadius.lowerRight, y + height);
    this.lineTo(x + cornerRadius.lowerLeft, y + height);
    this.quadraticCurveTo(x, y + height, x, y + height - cornerRadius.lowerLeft);
    this.lineTo(x, y + cornerRadius.upperLeft);
    this.quadraticCurveTo(x, y, x + cornerRadius.upperLeft, y);
    this.closePath();
    if (stroke) {
        this.stroke();
    }
    if (fill) {
        this.fill();
    }
} 

Use it like this:

var canvas = document.getElementById("canvas");
var c = canvas.getContext("2d");
c.fillStyle = "blue";
c.roundRect(50, 100, 50, 100, {upperLeft:10,upperRight:10}, true, true);

Mine is similar to your solution but I got it to work. Only difference is my model. I have the following models in my html input:

ng-model="new.Participant.email"
ng-model="new.Participant.confirmEmail"

and in my controller, I have this in $scope:

 $scope.new = {
        Participant: {}
    };

and this validation line worked:

<label class="help-block" ng-show="new.Participant.email !== new.Participant.confirmEmail">Emails must match! </label>

Recommendation from JAVA is to assign to null

From https://docs.oracle.com/cd/E19159-01/819-3681/abebi/index.html

Explicitly assigning a null value to variables that are no longer needed helps the garbage collector to identify the parts of memory that can be safely reclaimed. Although Java provides memory management, it does not prevent memory leaks or using excessive amounts of memory.

An application may induce memory leaks by not releasing object references. Doing so prevents the Java garbage collector from reclaiming those objects, and results in increasing amounts of memory being used. Explicitly nullifying references to variables after their use allows the garbage collector to reclaim memory.

One way to detect memory leaks is to employ profiling tools and take memory snapshots after each transaction. A leak-free application in steady state will show a steady active heap memory after garbage collections.

<div class="at-counter-box-content">

  <div class="at-counter-content">

      <span>40%</span>

  </div><!--at-counter-content-->

</div><!--at-counter-box-content-->

Try CSS3 Textshadow.

.box_textshadow {
     text-shadow: 2px 2px 0px #FF0000; /* FF3.5+, Opera 9+, Saf1+, Chrome, IE10 */
}

Try it yourself on css3please.com.

I use this peace of code and I have successeful

<div class="row  center-block">
<div style="margin: 0 auto;width: 90%;"> 
    <div class="col-md-12" style="top:10px;">
    </div>
    <div class="col-md-12" style="top:10px;">
    </div>
 </div>

The former method is fine. The only problem I can see is that you might end up with an old version of setuptools (if the apt repository hasn't been kept up-to-date..

In Python self is the conventional name given to the first argument of instance methods of classes, which is always the instance the method was called on:

class A(object):
  def f(self):
    print self

a = A()
a.f()

Will give you something like

<__main__.A object at 0x02A9ACF0>

The simple form:

std::string  data[] = {"ram","mohan","sita"};
std::for_each(data,data+3,std::bind1st(std::mem_fun(&Y::add), &(listbox.items)));

An example in action:

#include <algorithm>
#include <string>
#include <iostream>
#include <functional>

class Y
{
    public:
      void add(std::string value)
      {
          std::cout << "Got(" << value << ")\n";
      }
};
class X
{
    public:
      Y  items;
};

int main()
{
    X listbox;

    std::string  data[] = {"ram","mohan","sita"};
    std::for_each(data,data+3,std::bind1st(std::mem_fun(&Y::add), &(listbox.items)));
}

I found output option in window Menu.

To import database from dump file (in this case called filename.sql)

    use: mysql -u username -p password database_name < filename.sql 

you are on Windows you will need to open CMD and go to directory where mysql.exe is installed. you are using WAMP server then this is usually located in: C:\wamp\bin\mysql\mysql5.5.8\bin (*note the version of mysql might be different)

So you will: cd C:\wamp\bin\mysql\mysql5.5.8\bin

and then execute one of the above commands. Final command like this

    C:\wamp\bin\mysql\mysql5.5.8\bin>mysql -u rootss -p pwdroot testdatabasename < D:\test\Projects\test_demo_db.sql

None of these worked for me.

I was experiencing this issue in only once particular class. What finally worked for me was to delete the offending class and recreate it. Problem solved... mystery not so much!

In easy language, both versions are absolutely the same. Only difference is:

• min.js is for websites (online)

• .js is for developers, guys who needs to read, learn about or/and understand jquery codes, for ie plugin development (offline, local work).

If you needed to add a lot of integers it'd proabbly be easiest to use a for loop. For example, adding 28 days to a daysInFebruary array.

ArrayList<Integer> daysInFebruary = new ArrayList<>();

for(int i = 1; i <= 28; i++) {
    daysInFebruary.add(i);
}

you cannot set this in javascript, you have to do this with html/css:

<style type="text/css" media="print">
  @page { size: landscape; }
</style>

EDIT: See this Question and the accepted answer for more information on browser support: Is @Page { size:landscape} obsolete?

??Device Orientation != Interface Orientation??

Swift 5.* iOS14 and below

You should really make a difference between:

• Device Orientation => Indicates the orientation of the physical device
• Interface Orientation => Indicates the orientation of the interface displayed on the screen

There are many scenarios where those 2 values are mismatching such as:

• When you lock your screen orientation
• When you have your device flat

In most cases you would want to use the interface orientation and you can get it via the window:

private var windowInterfaceOrientation: UIInterfaceOrientation? {
    return UIApplication.shared.windows.first?.windowScene?.interfaceOrientation
}

In case you also want to support < iOS 13 (such as iOS 12) you would do the following:

private var windowInterfaceOrientation: UIInterfaceOrientation? {
    if #available(iOS 13.0, *) {
        return UIApplication.shared.windows.first?.windowScene?.interfaceOrientation
    } else {
        return UIApplication.shared.statusBarOrientation
    }
}

Now you need to define where to react to the window interface orientation change. There are multiple ways to do that but the optimal solution is to do it within willTransition(to newCollection: UITraitCollection.

This inherited UIViewController method which can be overridden will be trigger every time the interface orientation will be change. Consequently you can do all your modifications in the latter.

Here is a solution example:

class ViewController: UIViewController {
    override func willTransition(to newCollection: UITraitCollection, with coordinator: UIViewControllerTransitionCoordinator) {
        super.willTransition(to: newCollection, with: coordinator)
        
        coordinator.animate(alongsideTransition: { (context) in
            guard let windowInterfaceOrientation = self.windowInterfaceOrientation else { return }
            
            if windowInterfaceOrientation.isLandscape {
                // activate landscape changes
            } else {
                // activate portrait changes
            }
        })
    }
    
    private var windowInterfaceOrientation: UIInterfaceOrientation? {
        return UIApplication.shared.windows.first?.windowScene?.interfaceOrientation
    }
}

By implementing this method you'll then be able to react to any change of orientation to your interface. But keep in mind that it won't be triggered at the opening of the app so you will also have to manually update your interface in viewWillAppear().

I've created a sample project which underlines the difference between device orientation and interface orientation. Additionally it will help you to understand the different behavior depending on which lifecycle step you decide to update your UI.

Feel free to clone and run the following repository: https://github.com/wjosset/ReactToOrientation

A few caveats not covered in most answers:

• Check against multiple items (some should be deleted, some should remain)
• Skip the first option (-Select-) on some option lists

A take on these:

const eligibleOptions = ['800000002', '800000001'];
let optionsList = document.querySelector("select#edit-salutation");
for (let i = 1; i<optionsList.length; i++) {
    if(eligibleOptions.indexOf(optionsList.options[i].value) === -1) {
        cbxSal.remove(i);
        i--;
    }
}

This is a working example.

HTML Form :

<form enctype="multipart/form-data" action="upload.php" method="POST">
    <input type="hidden" name="MAX_FILE_SIZE" value="512000" />
    Send this file: <input name="userfile" type="file" />
    <input type="submit" value="Send File" />
</form>

PHP Code :

<?php        
    $uploaddir = '/var/www/uploads/';
    $uploadfile = $uploaddir . basename($_FILES['userfile']['name']);

    echo "<p>";

    if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
        echo "File is valid, and was successfully uploaded.\n";
    } else {
        echo "Upload failed";
    }

    echo "</p>";
    echo '<pre>';
    echo 'Here is some more debugging info:';
    print_r($_FILES);
    print "</pre>";
?>

The jQuery answer was pretty useful to me. With a little refactory it fitted my needs well. I hope it helps anybody else.

function onReady ( callback ){
    var addListener = document.addEventListener || document.attachEvent,
        removeListener =  document.removeEventListener || document.detachEvent
        eventName = document.addEventListener ? "DOMContentLoaded" : "onreadystatechange"

    addListener.call(document, eventName, function(){
        removeListener( eventName, arguments.callee, false )
        callback()
    }, false )
}

You can define different cookies for every user with CURLOPT_COOKIEFILE and CURLOPT_COOKIEJAR. Make different file for every user so each one would have it's own cookie-based session on remote server.

Add grid with defined height and width for columns and rows. Then add ScrollViewer and inside it add the dataGrid.

You can add a random (or datetime string) as query string to the url that points to your script. Like so:

<script type="text/javascript" src="test.js?q=123"></script> 

Every time you refresh the page you need to make sure the value of 'q' is changed.

Summary

To fix this issue encountered while running local app vs remote database, use SQL Server Configuration Manager to add an alias for the remote database.

Details

I had run into this problem recently when transitioning from a Windows 7 to a Windows 10 laptop. I was running a local development and runtime environment accessing our Dev database on a remote server. We access the Dev database through a server alias setup through SQL Server Client Network Utility (cliconfg.exe). After confirming that the alias was correctly setup in both the 64 and 32 bit versions of the utility and that the database server was accessible from the new laptop via SSMS, I still got the error seen by the OP (not the OP's IP address, of course).

It was necessary to use SQL Server Configuration Manager to add an alias for the remote Dev database server. Fixed things right up.

followers_df.reset_index()
followers_df.reindex(index=range(0,20))

$(document).ready(function(){_x000D_
$("#left").on('click', function (e) {_x000D_
        e.stopPropagation();_x000D_
        e.preventDefault();_x000D_
        $('#left').hide("slide", { direction: "left" }, 500, function () {_x000D_
            $('#right').show("slide", { direction: "right" }, 500);_x000D_
        });_x000D_
    });_x000D_
    $("#right").on('click', function (e) {_x000D_
        e.stopPropagation();_x000D_
        e.preventDefault();_x000D_
        $('#right').hide("slide", { direction: "right" }, 500, function () {_x000D_
            $('#left').show("slide", { direction: "left" }, 500);_x000D_
        });_x000D_
    });_x000D_
_x000D_
})

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>_x000D_
_x000D_
<div style="height:100%;width:100%;background:cyan" id="left">_x000D_
<h1>Hello im going left to hide and will comeback from left to show</h1>_x000D_
</div>_x000D_
<div style="height:100%;width:100%;background:blue;display:none" id="right">_x000D_
<h1>Hello im coming from right to sho and will go back to right to hide</h1>_x000D_
</div>

$("#btnOpenEditing").off('click');
$("#btnOpenEditing").on('click', function (e) {
    e.stopPropagation();
    e.preventDefault();
    $('#mappingModel').hide("slide", { direction: "right" }, 500, function () {
        $('#fsEditWindow').show("slide", { direction: "left" }, 500);
    });
});

It will work like charm take a look at the demo.

class foo(object):
    def __str__(self):
        return "representation"
    def __unicode__(self):
        return u"representation"

Did you set proper charset in the HTML Head section?

<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">

or you can set content type in your php script using -

   header( 'Content-Type: text/html; charset=utf-8' ); 

There are already some discussions here on StackOverflow - please have a look

How to make MySQL handle UTF-8 properly setting utf8 with mysql through php

PHP/MySQL with encoding problems

So what i want to know is how can i directly store ???????? into my database and fetch it and display in my webpage using PHP.

I am not sure what you mean by "directly storing in the database" .. did you mean entering data using PhpMyAdmin or any other similar tool? If yes, I have tried using PhpMyAdmin to input unicode data, so it has worked fine for me - You could try inputting data using phpmyadmin and retrieve it using a php script to confirm. If you need to submit data via a Php script just set the NAMES and CHARACTER SET when you create mysql connection, before execute insert queries, and when you select data. Have a look at the above posts to find the syntax. Hope it helps.

** UPDATE ** Just fixed some typos etc

Take a look at this recipe on GitHub: https://help.github.com/articles/importing-an-external-git-repository

I tried a number of methods before discovering git push --mirror.

Worked like a charm!

Be sure to stringify before sending. I leaned on the libraries too much and thought they would encode properly based on the contentType I was posting, but they do not seem to.

Works:

$.ajax({
    url: _saveAllDevicesUrl
,   type: 'POST'
,   contentType: 'application/json'
,   data: JSON.stringify(postData) //stringify is important
,   success: _madeSave.bind(this)
});

I prefer this method to using a plugin like $.toJSON, although that does accomplish the same thing.

For Linux Mint

I had the same issue whilst using PhpBrew ( 5.5.9 / 7.0.14 ) and trying to create a PDO connection.

After I had tried most of the solutions on this post I did the following:

1. Powered off PhpBrew

2. Executed sudo apt-get install php7.0 (Linux Mint 17.2 / PHP7.0.16) - installed fresh php version

It's a little on the cumbersome side, but I believe this should work (without the extra join). This assumes that you can choose a character that will never appear in the field in question, to act as a separator.

You can do it without nesting the select, but I find this a little cleaner that having four references to SYS_CONNECT_BY_PATH.

select id, 
       parent_id, 
       case 
         when lvl <> 1 
         then substr(name_path,
                     instr(name_path,'|',1,lvl-1)+1,
                     instr(name_path,'|',1,lvl)
                      -instr(name_path,'|',1,lvl-1)-1) 
         end as name 
from (
  SELECT id, parent_id, sys_connect_by_path(name,'|') as name_path, level as lvl
  FROM tbl 
  START WITH id = 1 
  CONNECT BY PRIOR id = parent_id)

Based on Steven Fisher's answer I wrote this piece of code:

- (void)setTitle:(NSString *)title
{
    [super setTitle:title];
    UILabel *titleView = (UILabel *)self.navigationItem.titleView;
    if (!titleView) {
        titleView = [[UILabel alloc] initWithFrame:CGRectZero];
        titleView.backgroundColor = [UIColor clearColor];
        titleView.font = [UIFont boldSystemFontOfSize:20.0];
        titleView.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5];

        titleView.textColor = [UIColor yellowColor]; // Change to desired color

        self.navigationItem.titleView = titleView;
        [titleView release];
    }
    titleView.text = title;
    [titleView sizeToFit];
}

The advantage of this code, besides dealing with the frame properly, is that if you change the title of your controller the custom title view will also get updated. No need to update it manually.

Another big advantage is that it makes it really simple to enable custom title color. All you need to do is to add this method to the controller.

You can use COALESCE

SELECT COALESCE(SUM(column),0)
FROM   table

You can use docker-compose run instead of docker-compose up and tack the arguments on the end. For example:

docker-compose run dperson/samba arg1 arg2 arg3

If you need to connect to other docker containers, use can use --service-ports option:

docker-compose run --service-ports dperson/samba arg1 arg2 arg3

POSIX recognizes multiple variations on regular expressions - basic regular expressions (BRE) and extended regular expressions (ERE). And even then, there are quirks because of the historical implementations of the utilities standardized by POSIX.

There isn't a simple rule for when to use which notation, or even which notation a given command uses.

Check out Jeff Friedl's Mastering Regular Expressions book.

Use the unexpand(1) program

UNEXPAND(1)                      User Commands                     UNEXPAND(1)

NAME
       unexpand - convert spaces to tabs

SYNOPSIS
       unexpand [OPTION]... [FILE]...

DESCRIPTION
       Convert  blanks in each FILE to tabs, writing to standard output.  With
       no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are  mandatory  for  short  options
       too.

       -a, --all
              convert all blanks, instead of just initial blanks

       --first-only
              convert only leading sequences of blanks (overrides -a)

       -t, --tabs=N
              have tabs N characters apart instead of 8 (enables -a)

       -t, --tabs=LIST
              use comma separated LIST of tab positions (enables -a)

       --help display this help and exit

       --version
              output version information and exit
. . .
STANDARDS
       The expand and unexpand utilities conform to IEEE Std 1003.1-2001
       (``POSIX.1'').

I think there's a separate way to raise the heap limit of the dexing operation. Add this to your android closure in your build.gradle file:

dexOptions {
    javaMaxHeapSize "4g"
}

and see if that helps.

(idea courtesy of this answer from Scott Barta)

This will depend on the device you're using. If you're using a pdf device, you can do this:

pdf( "mygraph.pdf", width = 11, height = 8 )
plot( x, y )

You can then divide up the space in the pdf using the mfrow parameter like this:

par( mfrow = c(2,2) )

That makes a pdf with four panels available for plotting. Unfortunately, some of the devices take different units than others. For example, I think that X11 uses pixels, while I'm certain that pdf uses inches. If you'd just like to create several devices and plot different things to them, you can use dev.new(), dev.list(), and dev.next().

Other devices that might be useful include:

• X11
• postscript
• BMP, JPEG, PNG and TIFF
• quartz (OSX only)

There's a list of all of the devices here.

Using http://phrogz.net/JS/ArraySetMath.js you can:

var array1 = ["test1", "test2","test3", "test4"];
var array2 = ["test1", "test2","test3","test4", "test5", "test6"];

var array3 = array2.subtract( array1 );
// ["test5", "test6"]

var array4 = array1.exclusion( array2 );
// ["test5", "test6"]

<html>
<body>
    <video width="600" height="400" controls>
        <source src="index.m3u8" type="application/x-mpegURL">
    </video>
</body> 

Stream HLS or m3u8 files using above code. it works for desktop: ms edge browser (not working with desktop chrome) and mobile: chrome,opera mini browser.

To play on all browser use flash based media player. media player to support all browser

Officially it's Ctrl+F11 & Ctrl+F12 or KEYPAD 7 & KEYPAD 9.

In practise it's a bit quirky.

1. Specifically it's Left Ctrl+F11 and Left Ctrl+F12 to switch to previous orientation and next orientation respectively.

2. You have to release Ctrl before you can rotate again.

3. KEYPAD 7 and KEYPAD 9 only work with Num Lock OFF (so they're acting as Home & PageUp rather than 7 & 9).

4. The only orientations are vertically upright and rotated one quarter-turn anti-clockwise.

Maybe a bit too much info for such a simple question, but it drove me half-mad finding this out.

Note: This was tested on Android SDK R16 and a very old keyboard, modern keyboards may behave differently.

I believe that git add -e myfile is the easiest way (my preference at least) since it simply opens a text editor and lets you choose which line you want to stage and which line you don't. Regarding editing commands:

added content:

Added content is represented by lines beginning with "+". You can prevent staging any addition lines by deleting them.

removed content:

Removed content is represented by lines beginning with "-". You can prevent staging their removal by converting the "-" to a " " (space).

modified content:

Modified content is represented by "-" lines (removing the old content) followed by "+" lines (adding the replacement content). You can prevent staging the modification by converting "-" lines to " ", and removing "+" lines. Beware that modifying only half of the pair is likely to introduce confusing changes to the index.

Every details about git add are available on git --help add

CORS headers should be sent from the server. If you use PHP it will be like this:

header('Access-Control-Allow-Origin: your-host');
header('Access-Control-Allow-Credentials: true');
header('Access-Control-Allow-Methods: your-methods like POST,GET');
header('Access-Control-Allow-Headers: content-type or other');
header('Content-Type: application/json');

I realize this may be a bit late, but I stumbled upon this and was wondering how to handle situations with multiple identical values, but different keys (as per bigbearzhu's comment).

So I modified Stephan Muller's answer slightly:

A datalist with non-unique values:

<input list="answers" name="answer" id="answerInput">
<datalist id="answers">
  <option value="42">The answer</option>
  <option value="43">The answer</option>
  <option value="44">Another Answer</option>
</datalist>
<input type="hidden" name="answer" id="answerInput-hidden">

When the user selects an option, the browser replaces input.value with the value of the datalist option instead of the innerText.

The following code then checks for an option with that value, pushes that into the hidden field and replaces the input.value with the innerText.

document.querySelector('#answerInput').addEventListener('input', function(e) {
    var input = e.target,   
        list = input.getAttribute('list'),
        options = document.querySelectorAll('#' + list + ' option[value="'+input.value+'"]'),
        hiddenInput = document.getElementById(input.getAttribute('id') + '-hidden');

    if (options.length > 0) {
      hiddenInput.value = input.value;
      input.value = options[0].innerText;
      }

});

As a consequence the user sees whatever the option's innerText says, but the unique id from option.value is available upon form submit. Demo jsFiddle

You can use parameters like that

<jsp:include page='about.jsp'>
    <jsp:param name="articleId" value=""/>
</jsp:include>

and

in about.jsp you can take the paramter

<%String leftAds = request.getParameter("articleId");%>

For the auto-reconnect issue with DBCP, has any tried using the following 2 configuration parameters?

validationQuery="Some Query"

testOnBorrow=true

I kind of got things working by adding auto layout constraints:

But I am not happy with this. Took a lot of trial and error and couldn't understand why this worked.

Also I had to add to use titleLabel.numberOfLines = 0 in my ViewController

Before stumbling onto this post, I came up with this solution - to toggle the TopMost property:

this.TopMost = true;
this.TopMost = false;

I have this code in my form's constructor, eg:

public MyForm()
{
    //...

    // Brint-to-front hack
    this.TopMost = true;
    this.TopMost = false;

    //...
}

You cannot access elements of an empty vector by subscript.
Always check that the vector is not empty & the index is valid while using the [] operator on std::vector.
[] does not add elements if none exists, but it causes an Undefined Behavior if the index is invalid.

You should create a temporary object of your structure, fill it up and then add it to the vector, using vector::push_back()

subject subObj;
subObj.name = s1;
sub.push_back(subObj);

Something along these lines ....

   //default icon, custom title
int n = JOptionPane.showConfirmDialog(null,"Would you like green eggs and ham?","An Inane Question",JOptionPane.YES_NO_OPTION);

String result = "?";
switch (n) {
case JOptionPane.YES_OPTION:
  result = "YES";
  break;
case JOptionPane.NO_OPTION:
  result = "NO";
  break;
default:
  ;
}
System.out.println("Replace? " + result);

you may also want to look at DialogDemo

You can add a hidden input with whatever value you need to send:

$('#form').submit(function(eventObj) {
    $(this).append('<input type="hidden" name="someName" value="someValue">');
    return true;
});

You can use the below code:

1. For Single Table Structure alone Backup

-

mysqldump -d <database name> <tablename> > <filename.sql>

2. For Single Table Structure with data

-

mysqldump <database name> <tablename> > <filename.sql>

Hope it will help.

The color and window sizing are defined by the shortcut LNK file. I think I found a way that will do what you need, try this:

explorer.exe "Windows PowerShell.lnk"

The LNK file is in the all user start menu which is located in different places depending whether your on XP or Windows 7. In 7 the LNK file is here:

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell

Try this

DECLARE @xml xml, @str varchar(100), @delimiter varchar(10)
SET @str = '1,2,3,4,5,6,7,8,9,10,11,12,13,14,15'
SET @delimiter = ','
SET @xml = cast(('<X>'+replace(@str, @delimiter, '</X><X>')+'</X>') as xml)
SELECT C.value('.', 'varchar(10)') as value FROM @xml.nodes('X') as X(C)

OR

DECLARE @str varchar(100), @delimiter varchar(10)
SET @str = '1,2,3,4,5,6,7,8,9,10,11,12,13,14,15'
SET @delimiter = ','
;WITH cte AS
(
    SELECT 0 a, 1 b
    UNION ALL
    SELECT b, CHARINDEX(@delimiter, @str, b) + LEN(@delimiter)
    FROM CTE
    WHERE b > a
)
SELECT SUBSTRING(@str, a,
CASE WHEN b > LEN(@delimiter) 
    THEN b - a - LEN(@delimiter) 
    ELSE LEN(@str) - a + 1 END) value      
FROM cte WHERE a > 0

Many more ways of doing the same is here How to split comma delimited string?

There's a method that does this for you:

def show
  @city = @user.city.present?
end

The present? method tests for not-nil plus has content. Empty strings, strings consisting of spaces or tabs, are considered not present.

Since this pattern is so common there's even a shortcut in ActiveRecord:

def show
  @city = @user.city?
end

This is roughly equivalent.

As a note, testing vs nil is almost always redundant. There are only two logically false values in Ruby: nil and false. Unless it's possible for a variable to be literal false, this would be sufficient:

if (variable)
  # ...
end

This is preferable to the usual if (!variable.nil?) or if (variable != nil) stuff that shows up occasionally. Ruby tends to wards a more reductionist type of expression.

One reason you'd want to compare vs. nil is if you have a tri-state variable that can be true, false or nil and you need to distinguish between the last two states.

Please note that, you should allow "system" key as well

    $(element).keydown(function (e) {
    var code = (e.keyCode ? e.keyCode : e.which), value;
    if (isSysKey(code) || code === 8 || code === 46) {
        return true;
    }

    if (e.shiftKey || e.altKey || e.ctrlKey) {
        return ;
    }

    if (code >= 48 && code <= 57) {
        return true;
    }

    if (code >= 96 && code <= 105) {
        return true;
    }

    return false;
});

function isSysKey(code) {
    if (code === 40 || code === 38 ||
            code === 13 || code === 39 || code === 27 ||
            code === 35 ||
            code === 36 || code === 37 || code === 38 ||
            code === 16 || code === 17 || code === 18 ||
            code === 20 || code === 37 || code === 9 ||
            (code >= 112 && code <= 123)) {
        return true;
    }

    return false;
}

Another option which hasn't been mentioned is to use which:

length(which(z))

Just to actually provide some context on the "which is faster question", it's always easiest just to test yourself. I made the vector much larger for comparison:

z <- sample(c(TRUE,FALSE),1000000,rep=TRUE)
system.time(sum(z))
   user  system elapsed 
   0.03    0.00    0.03
system.time(length(z[z==TRUE]))
   user  system elapsed 
   0.75    0.07    0.83 
system.time(length(which(z)))
   user  system elapsed 
   1.34    0.28    1.64 
system.time(table(z)["TRUE"])
   user  system elapsed 
  10.62    0.52   11.19 

So clearly using sum is the best approach in this case. You may also want to check for NA values as Marek suggested.

Just to add a note regarding NA values and the which function:

> which(c(T, F, NA, NULL, T, F))
[1] 1 4
> which(!c(T, F, NA, NULL, T, F))
[1] 2 5

Note that which only checks for logical TRUE, so it essentially ignores non-logical values.

It's best if you worked with DataSets and/or DataTables. Once you have that, ideally straight from your stored procedure with proper column names for headers, you can use the following method:

ws.Cells.LoadFromDataTable(<DATATABLE HERE>, true, OfficeOpenXml.Table.TableStyles.Light8);

.. which will produce a beautiful excelsheet with a nice table!

Now to serve your file, assuming you have an ExcelPackage object as in your code above called pck..

Response.Clear();

Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.AddHeader("Content-Disposition", "attachment;filename=" + sFilename);

Response.BinaryWrite(pck.GetAsByteArray());
Response.End();

Comparison of Techniques

I had a similar issue attempting to get a character count without the leading whitespace provided by wc, which led me to this page. After trying out the answers here, the following are the results from my personal testing on Mac (BSD Bash). Again, this is for character count; for line count you'd do wc -l. echo -n omits the trailing line break.

FOO="bar"
echo -n "$FOO" | wc -c                          # "       3"    (x)
echo -n "$FOO" | wc -c | bc                     # "3"           (v)
echo -n "$FOO" | wc -c | tr -d ' '              # "3"           (v)
echo -n "$FOO" | wc -c | awk '{print $1}'       # "3"           (v)
echo -n "$FOO" | wc -c | cut -d ' ' -f1         # "" for -f < 8 (x)
echo -n "$FOO" | wc -c | cut -d ' ' -f8         # "3"           (v)
echo -n "$FOO" | wc -c | perl -pe 's/^\s+//'    # "3"           (v)
echo -n "$FOO" | wc -c | grep -ch '^'           # "1"           (x)
echo $( printf '%s' "$FOO" | wc -c )            # "3"           (v)

I wouldn't rely on the cut -f* method in general since it requires that you know the exact number of leading spaces that any given output may have. And the grep one works for counting lines, but not characters.

bc is the most concise, and awk and perl seem a bit overkill, but they should all be relatively fast and portable enough.

Also note that some of these can be adapted to trim surrounding whitespace from general strings, as well (along with echo `echo $FOO`, another neat trick).

As I was researching this I thought it would be nice to modify the BETWEEN solution to show an example for a particular non-static/string date, but rather a variable date, or today's such as CURRENT_DATE(). This WILL use the index on the log_timestamp column.

SELECT *
FROM some_table
WHERE
    log_timestamp
    BETWEEN 
        timestamp(CURRENT_DATE()) 
    AND # Adds 23.9999999 HRS of seconds to the current date
        timestamp(DATE_ADD(CURRENT_DATE(), INTERVAL '86399.999999' SECOND_MICROSECOND));

I did the seconds/microseconds to avoid the 12AM case on the next day. However, you could also do `INTERVAL '1 DAY' via comparison operators for a more reader-friendly non-BETWEEN approach:

SELECT *
FROM some_table
WHERE
    log_timestamp >= timestamp(CURRENT_DATE()) AND
    log_timestamp < timestamp(DATE_ADD(CURRENT_DATE(), INTERVAL 1 DAY));

Both of these approaches will use the index and should perform MUCH faster. Both seem to be equally as fast.

As of .net3.5+ instead of using a Dictionary<IKey, List<IValue>> you can use a Lookup from the Linq namespace:

// lookup Order by payment status (1:m) 
// would need something like Dictionary<Boolean, IEnumerable<Order>> orderIdByIsPayed
ILookup<Boolean, Order> byPayment = orderList.ToLookup(o => o.IsPayed);
IEnumerable<Order> payedOrders = byPayment[false];

From msdn:

A Lookup resembles a Dictionary. The difference is that a Dictionary maps keys to single values, whereas a Lookup maps keys to collections of values.

You can create an instance of a Lookup by calling ToLookup on an object that implements IEnumerable.

You may also want to read this answer to a related question. For more info, consult msdn.

Full example:

using System;
using System.Collections.Generic;
using System.Linq;

namespace LinqLookupSpike
{
    class Program
    {
        static void Main(String[] args)
        {
            // init 
            var orderList = new List<Order>();
            orderList.Add(new Order(1, 1, 2010, true));//(orderId, customerId, year, isPayed)
            orderList.Add(new Order(2, 2, 2010, true));
            orderList.Add(new Order(3, 1, 2010, true));
            orderList.Add(new Order(4, 2, 2011, true));
            orderList.Add(new Order(5, 2, 2011, false));
            orderList.Add(new Order(6, 1, 2011, true));
            orderList.Add(new Order(7, 3, 2012, false));

            // lookup Order by its id (1:1, so usual dictionary is ok)
            Dictionary<Int32, Order> orders = orderList.ToDictionary(o => o.OrderId, o => o);

            // lookup Order by customer (1:n) 
            // would need something like Dictionary<Int32, IEnumerable<Order>> orderIdByCustomer
            ILookup<Int32, Order> byCustomerId = orderList.ToLookup(o => o.CustomerId);
            foreach (var customerOrders in byCustomerId)
            {
                Console.WriteLine("Customer {0} ordered:", customerOrders.Key);
                foreach (var order in customerOrders)
                {
                    Console.WriteLine("    Order {0} is payed: {1}", order.OrderId, order.IsPayed);
                }
            }

            // the same using old fashioned Dictionary
            Dictionary<Int32, List<Order>> orderIdByCustomer;
            orderIdByCustomer = byCustomerId.ToDictionary(g => g.Key, g => g.ToList());
            foreach (var customerOrders in orderIdByCustomer)
            {
                Console.WriteLine("Customer {0} ordered:", customerOrders.Key);
                foreach (var order in customerOrders.Value)
                {
                    Console.WriteLine("    Order {0} is payed: {1}", order.OrderId, order.IsPayed);
                }
            }

            // lookup Order by payment status (1:m) 
            // would need something like Dictionary<Boolean, IEnumerable<Order>> orderIdByIsPayed
            ILookup<Boolean, Order> byPayment = orderList.ToLookup(o => o.IsPayed);
            IEnumerable<Order> payedOrders = byPayment[false];
            foreach (var payedOrder in payedOrders)
            {
                Console.WriteLine("Order {0} from Customer {1} is not payed.", payedOrder.OrderId, payedOrder.CustomerId);
            }
        }

        class Order
        {
            // key properties
            public Int32 OrderId { get; private set; }
            public Int32 CustomerId { get; private set; }
            public Int32 Year { get; private set; }
            public Boolean IsPayed { get; private set; }

            // additional properties
            // private List<OrderItem> _items;

            public Order(Int32 orderId, Int32 customerId, Int32 year, Boolean isPayed)
            {
                OrderId = orderId;
                CustomerId = customerId;
                Year = year;
                IsPayed = isPayed;
            }
        }
    }
}

Remark on Immutability

By default, Lookups are kind of immutable and accessing the internals would involve reflection. If you need mutability and don't want to write your own wrapper, you could use MultiValueDictionary (formerly known as MultiDictionary) from corefxlab (formerly part ofMicrosoft.Experimental.Collections which isn't updated anymore).

FWIW, the following line works in windows and replaces semicolons in my path variables with a newline. I'm using the tools installed under my git bin directory.

echo %path% | sed -e $'s/;/\\n/g' | less

axios.get accepts a request config as the second parameter (not query string params).

You can use the params config option to set query string params as follows:

axios.get('/api', {
  params: {
    foo: 'bar'
  }
});

Get selected values in comma separator

var Accessids = "";
$(".multi_select .btn-group>ul>li input:checked").each(function(i,obj)
{
    Accessids=Accessids+$(obj).val()+",";
});
Accessids = Accessids.substring(0,Accessids.length - 1);
console.log(Accessids);

By using ternary operator, you we can find the odd even numbers:

var num = 2;_x000D_
result = (num % 2 == 0) ? 'even' : 'odd'_x000D_
console.log(result);

The above-mentioned responses work well but if you want to pass data between 2 sibling components, then the event bus can also be used. Check out this blog which would help you understand better.

supppose for 2 components : CompA & CompB having same parent and main.js for setting up main vue app. For passing data from CompA to CompB without involving parent component you can do the following.

in main.js file, declare a separate global Vue instance, that will be event bus.

export const bus = new Vue();

In CompA, where the event is generated : you have to emit the event to bus.

methods: {
      somethingHappened (){
          bus.$emit('changedSomething', 'new data');
      }
  }

Now the task is to listen the emitted event, so, in CompB, you can listen like.

created (){
    bus.$on('changedSomething', (newData) => {
      console.log(newData);
    })
  }

Advantages:

• Less & Clean code.
• Parent should not involve in passing down data from 1 child comp to another ( as the number of children grows, it will become hard to maintain )
• Follows pub-sub approach.

What's this "other information"? An IP address?

In PHP, you use $_SERVER['REMOTE_ADDR'] to get the IP address of the remote client, then you can use gethostbyaddr() to try and conver that IP into a hostname - but not all IPs have a reverse mapping configured.

This function will return a converted java date from SQL date object.

public static java.util.Date convertFromSQLDateToJAVADate(
            java.sql.Date sqlDate) {
        java.util.Date javaDate = null;
        if (sqlDate != null) {
            javaDate = new Date(sqlDate.getTime());
        }
        return javaDate;
    }

In addition to Chibueze Opata:

class Time
{
    public int Hours   { get; private set; }
    public int Minutes { get; private set; }
    public int Seconds { get; private set; }

    public Time(uint h, uint m, uint s)
    {
        if(h > 23 || m > 59 || s > 59)
        {
            throw new ArgumentException("Invalid time specified");
        }
        Hours = (int)h; Minutes = (int)m; Seconds = (int)s;
    }

    public Time(DateTime dt)
    {
        Hours = dt.Hour;
        Minutes = dt.Minute;
        Seconds = dt.Second;
    }

    public override string ToString()
    {  
        return String.Format(
            "{0:00}:{1:00}:{2:00}",
            this.Hours, this.Minutes, this.Seconds);
    }

    public void AddHours(uint h)
    {
        this.Hours += (int)h;
    }

    public void AddMinutes(uint m)
    {
        this.Minutes += (int)m;
        while(this.Minutes > 59)
            this.Minutes -= 60;
            this.AddHours(1);
    }

    public void AddSeconds(uint s)
    {
        this.Seconds += (int)s;
        while(this.Seconds > 59)
            this.Seconds -= 60;
            this.AddMinutes(1);
    }
}

I was looking for a way to disable my already existing DataGridView and came across several answers. Oddly enough, the first few results on google were some very old topics. This being the earliest one of them, I decide to put my answer here.

private void dgvDetails_ColumnStateChanged(object sender, DataGridViewColumnStateChangedEventArgs e)
{
    e.Column.SortMode = DataGridViewColumnSortMode.NotSortable;
}

The description when you click on ColumStateChanged in the properties window is:

"Occurs when a column changes state, such as gaining or loosing focus"

Granted there are many ways to do this but I thought I'd add this one here. Can't say I found it anywhere else but then again I only read the first 5 topics I found.

if you use the JavaScript style ISO8601 date in JSON, you could use this, from MDN

var jsonDate = (new Date()).toJSON();
var backToDate = new Date(jsonDate);
console.log(jsonDate); //2015-10-26T07:46:36.611Z

I think by using the content"."; The dot becomes too squared if made too big, thus I believe that this is a better solution, here you can decide the size of the "disc" without affecting the font size.

li {_x000D_
    list-style: none;_x000D_
   display: list-item;_x000D_
   margin-left: 50px;_x000D_
}_x000D_
_x000D_
li:before {_x000D_
    content: "";_x000D_
   border: 5px #000 solid !important;_x000D_
   border-radius: 50px;_x000D_
   margin-top: 5px;_x000D_
   margin-left: -20px;_x000D_
   position: absolute;_x000D_
}

<h2>Look at these examples!</h2>_x000D_
<li>This is an example</li>_x000D_
<li>This is another example</li>

You edit the size of the disk by editing the size of the border px. and you can adjust the distance to the text by how much - margin left you give it. As well as adjust the y position by editing the margin top.

If you have Azure CLI setup, you can run the command below,

az account list

or find it at ~/.azure/credentials

I came to this question looking to solve the "too many open files" error, but I am using requests.session() in my code. A few searches later and I came up with an answer on the Python Requests Documentation which suggests to use the with block so that the session is closed even if there are unhandled exceptions:

with requests.Session() as s:
    s.get('http://google.com')

If you're not using Session you can actually do the same thing: https://2.python-requests.org/en/master/user/advanced/#session-objects

with requests.get('http://httpbin.org/get', stream=True) as r:
    # Do something

I didn't find the above answers sufficiently explicit, and it took me some time to figure it out for myself. The most useful page I found was: http://www.lockergnome.com/web/2011/12/13/how-to-use-github-to-contribute-to-open-source-projects/

I'm on a Unix box, using the command line. I expect this will all work on a Mac command line. (Mac or Window GUI looks to be available at desktop.github.com but I haven't tested this, and don't know how transferable this will be to the GUI.)

Step 1: Create a Github account Step 2: Create a new repository, typically with a README and LICENCE file created in the process. Step 3: Install "git" software. (Links in answers above and online help at github should suffice to do these steps, so I don't provide detailed instructions.) Step 4: Tell git who you are:

git config --global user.name "<NAME>"
git config --global user.email "<email>"

I think the e-mail must be one of the addresses you have associated with the github account. I used the same name as I used in github, but I think (not sure) that this is not required. Optionally you can add caching of credentials, so you don't need to type in your github account name and password so often. https://help.github.com/articles/caching-your-github-password-in-git/

Create and navigate to some top level working directory:

mkdir <working>
cd <working>

Import the nearly empty repository from github:

git clone https://github.com/<user>/<repository>

This might ask for credentials (if github repository is not 'public'.) Move to directory, and see what we've done:

cd <repository>
ls -a
git remote -v

(The 'ls' and 'git remote' commands are optional, they just show you stuff) Copy the 10000 files and millions of lines of code that you want to put in the repository:

cp -R <path>/src .
git status -s

(assuming everything you want is under a directory named "src".) (The second command again is optional and just shows you stuff)

Add all the files you just copied to git, and optionally admire the the results:

git add src
git status -s

Commit all the changes:

git commit -m "<commit comment>"

Push the changes

git push origin master

"Origin" is an alias for your github repository which was automatically set up by the "git clone" command. "master" is the branch you are pushing to. Go look at github in your browser and you should see all the files have been added.

Optionally remove the directory you did all this in, to reclaim disk space:

cd ..
rm -r <working>

Themes downloaded from IntelliJ can be installed as a Plugin.

Take these steps:

Preferences -> Plugins -> GearIcon -> Install Plugin from disk -> Reset your IDE ->  Preferences -> Appearance -> Theme -> Select your theme.

1. Open Command line (Start -> Run -> type "cmd")
2. type PATH
3. Verify that you can see here written C:\Program Files\Mozilla Firefox15\Firefox.exe

It will be probably not here - because thats what the error says. How to fix it?

1. Click Start
2. Right click on "Computer" and click "Properties"
3. In left menu Choose "Advanced system settings"
4. Go to tab "Advanced" and click "Environment Variables..."
5. In the window below select "Path" and click "Edit..." (Admin rights needed)
6. Add at the end the desired path, semicolon separated
7. Possible restart of computer needed

It his does not help then change the constructor like this:

File pathToBinary = new File("C:\\Program Files\\Mozilla Firefox15\\Firefox.exe");
FirefoxBinary ffBinary = new FirefoxBinary(pathToBinary);
FirefoxProfile firefoxProfile = new FirefoxProfile();
FirefoxDriver _driver = new FirefoxDriver(ffBinary,firefoxProfile);

You have two ways to do that:

METHOD 1. The secure way.

Put the images on /www/htdocs/

<?php
    $www_root = 'http://localhost/images';
    $dir = '/var/www/images';
    $file_display = array('jpg', 'jpeg', 'png', 'gif');

    if ( file_exists( $dir ) == false ) {
       echo 'Directory \'', $dir, '\' not found!';
    } else {
       $dir_contents = scandir( $dir );

        foreach ( $dir_contents as $file ) {
           $file_type = strtolower( end( explode('.', $file ) ) );
           if ( ($file !== '.') && ($file !== '..') && (in_array( $file_type, $file_display)) ) {
              echo '<img src="', $www_root, '/', $file, '" alt="', $file, '"/>';
           break;
           }
        }
    }
?>

METHOD 2. Unsecure but more flexible.

Put the images on any directory (apache must have permission to read the file).

<?php
    $dir = '/home/user/Pictures';
    $file_display = array('jpg', 'jpeg', 'png', 'gif');

    if ( file_exists( $dir ) == false ) {
       echo 'Directory \'', $dir, '\' not found!';
    } else {
       $dir_contents = scandir( $dir );

        foreach ( $dir_contents as $file ) {
           $file_type = strtolower( end( explode('.', $file ) ) );
           if ( ($file !== '.') && ($file !== '..') && (in_array( $file_type, $file_display)) ) {
              echo '<img src="file_viewer.php?file=', base64_encode($dir . '/' . $file), '" alt="', $file, '"/>';
           break;
           }
        }
    }
?>

And create another script to read the image file.

<?php
    $filename = base64_decode($_GET['file']);
    // Check the folder location to avoid exploit
    if (dirname($filename) == '/home/user/Pictures')
        echo file_get_contents($filename);
?>

An interface defines behavior. For example, a Vehicle interface might define the move() method.

A Car is a Vehicle, but has additional behavior. For example, the Car interface might define the startEngine() method. Since a Car is also a Vehicle, the Car interface extends the Vehicle interface, and thus defines two methods: move() (inherited) and startEngine().

The Car interface doesn't have any method implementation. If you create a class (Volkswagen) that implements Car, it will have to provide implementations for all the methods of its interface: move() and startEngine().

An interface may not implement any other interface. It can only extend it.

&& x.DateTimeValueColumn <= DateTime.Now

This is supported so long as your schema is correct

&& x.DateTimeValueColumn.Value.Date <=DateTime.Now

Add a min-height to your infoWindow class element.

That will resolve the issue if your infoWindows are all the same size.

If not, add this line of jQuery to your click function for the infoWindow:

//remove overflow scrollbars
$('#myDiv').parent().css('overflow','');

How to show uncommitted changes in Git

The command you are looking for is git diff.

git diff - Show changes between commits, commit and working tree, etc

Here are some of the options it expose which you can use

git diff (no parameters)
Print out differences between your working directory and the index.

git diff --cached:
Print out differences between the index and HEAD (current commit).

git diff HEAD:
Print out differences between your working directory and the HEAD.

git diff --name-only
Show only names of changed files.

git diff --name-status
Show only names and status of changed files.

git diff --color-words
Word by word diff instead of line by line.

Here is a sample of the output for git diff --color-words:

Or, in your ~/.bashrc file:

function watch {
    while :; do clear; date; echo; $@; sleep 2; done
}

STATICFILES_DIRS: You can keep the static files for your project here e.g. the ones used by your templates.

STATIC_ROOT: leave this empty, when you do manage.py collectstatic, it will search for all the static files on your system and move them here. Your static file server is supposed to be mapped to this folder wherever it is located. Check it after running collectstatic and you'll find the directory structure django has built.

--------Edit----------------

As pointed out by @DarkCygnus, STATIC_ROOT should point at a directory on your filesystem, the folder should be empty since it will be populated by Django.

STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')

or

STATIC_ROOT = '/opt/web/project/static_files'

--------End Edit -----------------

STATIC_URL: '/static/' is usually fine, it's just a prefix for static files.