<input name="Email" type="text" id="Email" placeholder="enter your question" />

The placeholder attribute specifies a short hint that describes the expected value of an input field (e.g. a sample value or a short description of the expected format).

The short hint is displayed in the input field before the user enters a value.

Note: The placeholder attribute works with the following input types: text, search, url, tel, email, and password.

I think this will help.

you can try like This

ArrayList<String> dtlst = new ArrayList<String>();
String qry1 = "select dt_tracker from gs";

Statement prepst = conn.createStatement();
ResultSet rst = prepst.executeQuery(qry1);
while(rst.next())
{
    String dt = "";
    try
    {
        dt = rst.getDate("dt_tracker")+" "+rst.getTime("dt_tracker");
    }
    catch(Exception e)
    {
        dt = "0000-00-00 00:00:00";
    }

    dtlst.add(dt);
}

we can change the icon of markers, i did it on right click event. Lets see if it works for you...

// Create a Marker
var marker = new google.maps.Marker({
    position: location,
    map: map,
    title:'Sample Tool Tip'
  });


// Set Icon on any event
google.maps.event.addListener(marker, "rightclick", function() {
        marker.setIcon('blank.png'); // set image path here...
});

To answer people thinking you "have to" use vector instead of unique_ptr I have a case in CUDA programming on GPU when you allocate memory in Device you must go for a pointer array (with cudaMalloc). Then, when retrieving this data in Host, you must go again for a pointer and unique_ptr is fine to handle pointer easily. The extra cost of converting double* to vector<double> is unnecessary and leads to a loss of perf.

Not sure if anyone is having the same responsive issue, but it was just a simple css solution for me.

same example

...  ng-init="isCollapsed = true" ng-click="isCollapsed = !isCollapsed"> ...
...  div collapse="isCollapsed"> ...

with

@media screen and (min-width: 768px) {
    .collapse{
        display: block !important;
    }
}

Yes, but you can select only one column in your subselect

SELECT (SELECT id FROM bla) AS my_select FROM bla2

Python dictionaries have a key and a value, what you are asking for is what key(s) point to a given value.

You can only do this in a loop:

[k for (k, v) in i.iteritems() if v == 0]

Note that there can be more than one key per value in a dict; {'a': 0, 'b': 0} is perfectly legal.

If you want ordering you either need to use a list or a OrderedDict instance instead:

items = ['a', 'b', 'c']
items.index('a') # gives 0
items[0]         # gives 'a'

rtrim function

rtrim($my_string,',');

Second parameter indicates that comma to be deleted from right side.

But you can also do it in openssl (openssl enc command does it....), look at the BIO_f_base64() function

If it is not mandatory to use a CheckBox you could just use a Switch instead. A Switch shows the text on the left side by default.

This is the conditional operator expression.

(condition) ? [true path] : [false path];

For example

 string value = someBooleanExpression ? "Alpha" : "Beta";

So if the boolean expression is true, value will hold "Alpha", otherwise, it holds "Beta".

For a common pitfall that people fall into, see this question in the C# tag wiki.

If you aren't a fan of passing in a string, I prefer how @sesperanto has done it, except to make it even more concise, you could drop Float::INFINITY in the date range and instead simply use created_at: p[:date]..

Note.where(
    user_id: current_user.id,
    notetype: p[:note_type],
    created_at: p[:date]..
).order(:date, :created_at)

Take note that this will change the query to be >= instead of >. If that's a concern, you could always add a unit of time to the date by running something like p[:date] + 1.day..

Security note: using this answer (preserved in its original form below) may introduce an XSS vulnerability into your application. You should not use this answer. Read lucascaro's answer for an explanation of the vulnerabilities in this answer, and use the approach from either that answer or Mark Amery's answer instead.

Actually, try

var encodedStr = "This is fun & stuff";
var decoded = $("<div/>").html(encodedStr).text();
console.log(decoded);

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div/>

This happens because some other programs running in your system is using the default port 80 used for http service by apache server in xampp/easy php.

Some programs like skype usually use port 80. so find such program and remove it ...

For finding programs listening port 80 refer Port 80 listening programs

You could use SwiftString (https://github.com/amayne/SwiftString) to do this.

"string".length // 6

DISCLAIMER: I wrote this extension

There are a couple of ways to solve this. The least hackiest and almost what you want:

$client = new SoapClient(
    null,
    array(
        'location' => 'https://example.com/ExampleWebServiceDL/services/ExampleHandler',
        'uri' => 'http://example.com/wsdl',
        'trace' => 1,
        'use' => SOAP_LITERAL,
    )
);
$params = new \SoapVar("<Acquirer><Id>MyId</Id><UserId>MyUserId</UserId><Password>MyPassword</Password></Acquirer>", XSD_ANYXML);
$result = $client->Echo($params);

This gets you the following XML:

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://example.com/wsdl">
    <SOAP-ENV:Body>
        <ns1:Echo>
            <Acquirer>
                <Id>MyId</Id>
                <UserId>MyUserId</UserId>
                <Password>MyPassword</Password>
            </Acquirer>
        </ns1:Echo>
    </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

That is almost exactly what you want, except for the namespace on the method name. I don't know if this is a problem. If so, you can hack it even further. You could put the <Echo> tag in the XML string by hand and have the SoapClient not set the method by adding 'style' => SOAP_DOCUMENT, to the options array like this:

$client = new SoapClient(
    null,
    array(
        'location' => 'https://example.com/ExampleWebServiceDL/services/ExampleHandler',
        'uri' => 'http://example.com/wsdl',
        'trace' => 1,
        'use' => SOAP_LITERAL,
        'style' => SOAP_DOCUMENT,
    )
);
$params = new \SoapVar("<Echo><Acquirer><Id>MyId</Id><UserId>MyUserId</UserId><Password>MyPassword</Password></Acquirer></Echo>", XSD_ANYXML);
$result = $client->MethodNameIsIgnored($params);

This results in the following request XML:

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
    <SOAP-ENV:Body>
        <Echo>
            <Acquirer>
                <Id>MyId</Id>
                <UserId>MyUserId</UserId>
                <Password>MyPassword</Password>
            </Acquirer>
        </Echo>
    </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

Finally, if you want to play around with SoapVar and SoapParam objects, you can find a good reference in this comment in the PHP manual: http://www.php.net/manual/en/soapvar.soapvar.php#104065. If you get that to work, please let me know, I failed miserably.

_WIN32 identifier is not defined.

use #include <SDKDDKVer.h>

MSVS generated projects wrap this include by generating a local "targetver.h"which is included by "stdafx.h" that is comiled into a precompiled-header through "stdafx.cpp".

EDIT : do you have a /D "WIN32" on your commandline ?

Note: In react you can put javascript expression inside curly bracket. We can use this property in this example.
Note: give one look to below example:

class LoginForm extends React.Component {

  constructor(props) {
    super(props);

    this.state = {i:1};
  }

  handleClick() {
    this.setState(prevState => ({i : prevState.i + 1}));

    console.log(this.state.j);  
  }


  render() {

    return (
      <div>
        <p onClick={this.handleClick.bind(this)}>Click to change image</p>
        <img src={'images/back'+ this.state.i+'.jpg'}/>
      </div>
      );

  }
}

ifeq "$(wildcard $(MY_DIRNAME) )" ""
  -mkdir $(MY_DIRNAME)
endif

Changing your lists to numpy arrays will do the job!!

import matplotlib.pyplot as plt
from scipy import stats
import numpy as np 

x = np.array([0.46,0.59,0.68,0.99,0.39,0.31,1.09,0.77,0.72,0.49,0.55,0.62,0.58,0.88,0.78]) # x is a numpy array now
y = np.array([0.315,0.383,0.452,0.650,0.279,0.215,0.727,0.512,0.478,0.335,0.365,0.424,0.390,0.585,0.511]) # y is a numpy array now
xerr = [0.01]*15
yerr = [0.001]*15

plt.rc('font', family='serif', size=13)
m, b = np.polyfit(x, y, 1)
plt.plot(x,y,'s',color='#0066FF')
plt.plot(x, m*x + b, 'r-') #BREAKS ON THIS LINE
plt.errorbar(x,y,xerr=xerr,yerr=0,linestyle="None",color='black')
plt.xlabel('$\Delta t$ $(s)$',fontsize=20)
plt.ylabel('$\Delta p$ $(hPa)$',fontsize=20)
plt.autoscale(enable=True, axis=u'both', tight=False)
plt.grid(False)
plt.xlim(0.2,1.2)
plt.ylim(0,0.8)
plt.show()

If you need to edit files of same type with more encodings in different folders and projects (e.g. one project is in UTF-8 and other in Windows-12xx), go to Window > Preferences > General > Content Types > Text > and select each type with multiple encodings.

For each type delete content of the Default encoding and click Update.

This way Eclipse will not "autodetect" encoding and will use encoding set for project or folder.

If the script name has spaces in it, a more robust way is to use "$0" or "$(basename "$0")" - or on MacOS: "$(basename \"$0\")". This prevents the name from getting mangled or interpreted in any way. In general, it is good practice to always double-quote variable names in the shell.

You can escape the "space" char by putting a \ right before it.

I think you are confused with the printf(String format, Object... args) method. The first argument is the format string, which is mandatory, rest you can pass an arbitrary number of Objects.

There is no such overload for both the print() and println() methods.

You could set the image as a background image. Since it resides in a div, and the div is undraggable, the image will be undraggable:

<div style="background-image: url("image.jpg");">
</div>

I know that you're not using history, but in my case I was using the useHistory hook from React Router DOM, which unmounts the component before the state is persisted in my React Context Provider.

To fix this problem I have used the hook withRouter nesting the component, in my case export default withRouter(Login), and inside the component const Login = props => { ...; props.history.push("/dashboard"); .... I have also removed the other props.history.push from the component, e.g, if(authorization.token) return props.history.push('/dashboard') because this causes a loop, because the authorization state.

An alternative to push a new item to history.

Use List.indexOf(). This will give you the first match when there are multiple duplicates.

From oracle documentation page about ReentrantLock:

A reentrant mutual exclusion Lock with the same basic behaviour and semantics as the implicit monitor lock accessed using synchronized methods and statements, but with extended capabilities.

1. A ReentrantLock is owned by the thread last successfully locking, but not yet unlocking it. A thread invoking lock will return, successfully acquiring the lock, when the lock is not owned by another thread. The method will return immediately if the current thread already owns the lock.

2. The constructor for this class accepts an optional fairness parameter. When set true, under contention, locks favor granting access to the longest-waiting thread. Otherwise this lock does not guarantee any particular access order.

ReentrantLock key features as per this article

1. Ability to lock interruptibly.
2. Ability to timeout while waiting for lock.
3. Power to create fair lock.
4. API to get list of waiting thread for lock.
5. Flexibility to try for lock without blocking.

You can use ReentrantReadWriteLock.ReadLock, ReentrantReadWriteLock.WriteLock to further acquire control on granular locking on read and write operations.

Have a look at this article by Benjamen on usage of different type of ReentrantLocks

Using a custom url attribute makes the HTML invalid. Although that may not be a huge problem, the given examples are neither accessible. Not for keyboard navigation and not in cases when JavaScript is turned off (or blocked by some other script). Even Google will not find the page located at the specified url, not via this route at least.

It's quite easy to make this accessible though. Just make sure there's a regular link inside the div that points to the url. Using JavaScript/jQuery you add an onclick to the div that redirects to the location specified by the link's href attribute. Now, when JavaScript doesn't work, the link still does and it can even catch the focus when using the keyboard to navigate (and you don't need custom attributes, so your HTML can be valid).

I wrote a jQuery plugin some time ago that does this. It also adds classNames to the div (or any other element you want to make clickable) and the link so you can alter their looks with CSS when the div is indeed clickable. It even adds classNames that you can use to specify hover and focus styles.

All you need to do is specify the element(s) you want to make clickable and call their clickable() method: in your case that would be $("div.clickable).clickable();

For downloading + documentation see the plugin's page: jQuery: clickable — jLix

it is quite simple just have the function correctly written in the controller class and use a tag to specify the controller class and method name, or any other neccessary parameter..

<?php
if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Iris extends CI_Controller {
    function __construct(){
        parent::__construct();
        $this->load->model('script');
        $this->load->model('alert');

    }public function pledge_ph(){
        $this->script->phpledge();
    }
}
?>

This is the controller class Iris.php and the model class with the function pointed to from the controller class.

<?php 
if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Script extends CI_Model {
    public function __construct() {
        parent::__construct();
        // Your own constructor code
    }public function ghpledge(){
        $gh_id = uniqid(rand(1,11));
        $date=date("y-m-d");
        $gh_member = $_SESSION['member_id'];
        $amount= 10000;
        $data = array(
            'gh_id'=> $gh_id,
            'gh_member'=> $gh_member,
            'amount'=> $amount,
            'date'=> $date
        );
        $this->db->insert('iris_gh',$data);
    } 
}
?>

On the view instead of a button just use the anchor link with the controller name and method name.

<html>
    <head></head>
    <body>
        <a href="<?php echo base_url(); ?>index.php/iris/pledge_ph" class="btn btn-success">PLEDGE PH</a>
    </body>
</html>

I've been searching answer but couldn't find but finally I could fix this by adding play-service-ads dependency let's try this

*) File -> Project Structure... -> Under the module you can find app and there is a option called dependencies and you can add com.google.android.gms:play-services-ads:x.x.x dependency to your project

I faced this problem when I try to import eclipse project into android studio

Click here to see screenshot

shorter version:

found = Value1.StartsWith("abc");

sorry, but I am a stickler for 'less' code.

Given the edit of the questioner I would actually go with something that accepted an offset, this may in fact be a Great place to an Extension method that overloads StartsWith

public static class StackOverflowExtensions
{
    public static bool StartsWith(this String val, string findString, int count)
    {
        return val.Substring(0, count).Contains(findString);
    }
}

If you are using jupyter notebook Try:

!python --version

If you are using terminal Try:

 python --version

I do think requests is the best option. Also note the possibility of setting encoding manually.

import requests
response = requests.get("http://www.gutenberg.org/files/10/10-0.txt")
# response.encoding = "utf-8"
hehe = response.text

create a dictionary in your python module and store everything into it and access it, for example:

dict = {
       'portalPath' : 'www.xyx.com',
       'elementID': 'submit'}

Now to access it you can simply do:

submitButton = driver.find_element_by_id(dict['elementID'])

A way that has worked for me personally, is using the recyclerview's adapter methods to deal with changes in it's items.

It would go in a way similar to this, create a method in your custom recycler's view somewhat like this:

public void modifyItem(final int position, final Model model) {
    mainModel.set(position, model);
    notifyItemChanged(position);
}

Your Android build tools are not properly installed. Try installing some other version of build tools and give that version in the gradle file. or you can go to this directory

C:\Users\\AppData\Local\Android\sdk\build-tools

and see which build tools is installed. Try changing the build tool version in the gradle file and compile the app to see if it is working.

i had 22.0.1,23.0.02 and 24.0.0 versions of build tools and only the old 22.0.1 version worked.

source: i tried it myself and it worked for me.

In Chrome, request with 'Content-Type:application/json' shows as Request PayedLoad and sends data as json object.

But request with 'Content-Type:application/x-www-form-urlencoded' shows Form Data and sends data as Key:Value Pair, so if you have array of object in one key it flats that key's value:

{ Id: 1, 
name:'john', 
phones:[{title:'home',number:111111,...},
        {title:'office',number:22222,...}]
}

sends

{ Id: 1, 
name:'john', 
phones:[object object]
phones:[object object]
}

If you were asking from the perspective of working this out with a running program then you need to look to the java.lang.* package. If you get a Class object, you can use the isAssignableFrom method to check if it is an interface of another Class.

There isn't a simple built in way of searching for these, tools like Eclipse build an index of this information.

If you don't have a specific list of Class objects to test you can look to the ClassLoader object, use the getPackages() method and build your own package hierarchy iterator.

Just a warning though that these methods and classes can be quite slow.

Despite the many answers, one more approach which uses prop.table in combination with dplyr or data.table.

library("dplyr")
mtcars %>%
    group_by(am, gear) %>%
    summarise(n = n()) %>%
    mutate(freq = prop.table(n))

library("data.table")
cars_dt <- as.data.table(mtcars)
cars_dt[, .(n = .N), keyby = .(am, gear)][, freq := prop.table(n) , by = "am"]

Can't be done in pure HTML/JavaScript for security reasons.

Selecting a file for upload is the best you can do, and even then you won't get its full original path in modern browsers.

You may be able to put something together using Java or Flash (e.g. using SWFUpload as a basis), but it's a lot of work and brings additional compatibility issues.

Another thought would be opening an iframe showing the user's C: drive (or whatever) but even if that's possible nowadays (could be blocked for security reasons, haven't tried in a long time) it will be impossible for your web site to communicate with the iframe (again for security reasons).

What do you need this for?

git remote manpage is pretty straightforward:

• https://www.kernel.org/pub/software/scm/git/docs/git-remote.html

Use

Older (backwards-compatible) syntax:
$ git remote rm upstream
Newer syntax for newer git versions: (* see below)
$ git remote remove upstream

Then do:    
$ git remote add upstream https://github.com/Foo/repos.git

or just update the URL directly:

$ git remote set-url upstream https://github.com/Foo/repos.git

or if you are comfortable with it, just update the .git/config directly - you can probably figure out what you need to change (left as exercise for the reader).

...
[remote "upstream"]
    fetch = +refs/heads/*:refs/remotes/upstream/*
    url = https://github.com/foo/repos.git
...

===

* Regarding 'git remote rm' vs 'git remote remove' - this changed around git 1.7.10.3 / 1.7.12 2 - see

https://code.google.com/p/git-core/source/detail?spec=svne17dba8fe15028425acd6a4ebebf1b8e9377d3c6&r=e17dba8fe15028425acd6a4ebebf1b8e9377d3c6

Log message

remote: prefer subcommand name 'remove' to 'rm'

All remote subcommands are spelled out words except 'rm'. 'rm', being a
popular UNIX command name, may mislead users that there are also 'ls' or
'mv'. Use 'remove' to fit with the rest of subcommands.

'rm' is still supported and used in the test suite. It's just not
widely advertised.

Another possibility (esp. with multiple Oracle homes)

set ORACLE_SID=$SID

sqlplus /nolog

conn / as sysdba;

Here is a solution as an extension of [https://stackoverflow.com/a/46644736/10249774]

Bottom panel is pushing main content upwards

https://imgur.com/a/6nxewE0

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
    android:id="@+id/my_button"
    android:layout_marginTop="10dp"
    android:onClick="onSlideViewButtonClick"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"/>
<LinearLayout
android:id="@+id/main_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center_horizontal">
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="main "
    android:textSize="70dp"/>
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="main "
    android:textSize="70dp"/>
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="main "
    android:textSize="70dp"/>
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="main"
    android:textSize="70dp"/>
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="main"
    android:textSize="70dp"/>
</LinearLayout>
<LinearLayout
    android:id="@+id/footer_view"
    android:background="#a6e1aa"
    android:orientation="vertical"
    android:gravity="center_horizontal"
    android:layout_alignParentBottom="true"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="footer content"
        android:textSize="40dp" />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="footer content"
        android:textSize="40dp" />
  </LinearLayout>
</RelativeLayout>

MainActivity:

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.TranslateAnimation;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
private Button myButton;
private View footerView;
private View mainView;
private boolean isUp;
private int anim_duration = 700;

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

    footerView = findViewById(R.id.footer_view);
    mainView = findViewById(R.id.main_view);
    myButton = findViewById(R.id.my_button);

    // initialize as invisible (could also do in xml)
    footerView.setVisibility(View.INVISIBLE);
    myButton.setText("Slide up");
    isUp = false;
}
public void slideUp(View mainView , View footer_view){
    footer_view.setVisibility(View.VISIBLE);
    TranslateAnimation animate_footer = new TranslateAnimation(
            0,                 // fromXDelta
            0,                 // toXDelta
            footer_view.getHeight(),  // fromYDelta
            0);                // toYDelta
    animate_footer.setDuration(anim_duration);
    animate_footer.setFillAfter(true);
    footer_view.startAnimation(animate_footer);

    mainView.setVisibility(View.VISIBLE);
    TranslateAnimation animate_main = new TranslateAnimation(
            0,                 // fromXDelta
            0,                 // toXDelta
            0,  // fromYDelta
            (0-footer_view.getHeight()));                // toYDelta
    animate_main.setDuration(anim_duration);
    animate_main.setFillAfter(true);
    mainView.startAnimation(animate_main);
}
public void slideDown(View mainView , View footer_view){
    TranslateAnimation animate_footer = new TranslateAnimation(
            0,                 // fromXDelta
            0,                 // toXDelta
            0,                 // fromYDelta
            footer_view.getHeight()); // toYDelta
    animate_footer.setDuration(anim_duration);
    animate_footer.setFillAfter(true);
    footer_view.startAnimation(animate_footer);


    TranslateAnimation animate_main = new TranslateAnimation(
            0,                 // fromXDelta
            0,                 // toXDelta
            (0-footer_view.getHeight()),  // fromYDelta
            0);                // toYDelta
    animate_main.setDuration(anim_duration);
    animate_main.setFillAfter(true);
    mainView.startAnimation(animate_main);
}

public void onSlideViewButtonClick(View view) {
    if (isUp) {
        slideDown(mainView , footerView);
        myButton.setText("Slide up");
    } else {
        slideUp(mainView , footerView);
        myButton.setText("Slide down");
    }
    isUp = !isUp;
}
}

There are two attributes, namely readonly and disabled, that can make a semi-read-only input. But there is a tiny difference between them.

<input type="text" readonly />
<input type="text" disabled />

• The readonly attribute makes your input text disabled, and users are not able to change it anymore.
• Not only will the disabled attribute make your input-text disabled(unchangeable) but also cannot it be submitted.

jQuery approach (1):

$("#inputID").prop("readonly", true);
$("#inputID").prop("disabled", true);

jQuery approach (2):

$("#inputID").attr("readonly","readonly");
$("#inputID").attr("disabled", "disabled");

JavaScript approach:

document.getElementById("inputID").readOnly = true;
document.getElementById("inputID").disabled = true;

PS disabled and readonly are standard html attributes. prop introduced with jQuery 1.6.

Output on Windows 7 (64-bit)

SpecialFolder.CommonApplicationData: C:\ProgramData 
SpecialFolder.CommonDesktopDirectory: C:\Users\Public\Desktop
SpecialFolder.CommonStartMenu: C:\ProgramData\Microsoft\Windows\Start Menu
SpecialFolder.CommonPrograms: C:\ProgramData\Microsoft\Windows\Start Menu\Programs
SpecialFolder.CommonProgramFiles: C:\Program Files\Common Files
SpecialFolder.CommonProgramFilesX86: C:\Program Files (x86)\Common Files
SpecialFolder.CommonStartup: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup
SpecialFolder.ProgramFiles: C:\Program Files
SpecialFolder.ProgramFilesX86: C:\Program Files (x86)
SpecialFolder.System: C:\Windows\system32
SpecialFolder.SystemX86: C:\Windows\SysWOW64

Output on Windows XP

SpecialFolder.CommonApplicationData: C:\Documents and Settings\All Users\Application Data
SpecialFolder.CommonDesktopDirectory: C:\Documents and Settings\All Users\Desktop
SpecialFolder.CommonPrograms: C:\Documents and Settings\All Users\Start Menu\Programs
SpecialFolder.CommonProgramFiles: C:\Program Files\Common Files
SpecialFolder.CommonProgramFilesX86:
SpecialFolder.CommonStartMenu: C:\Documents and Settings\All Users\Start Menu
SpecialFolder.CommonStartup: C:\Documents and Settings\All Users\Start Menu\Programs\Startup
SpecialFolder.ProgramFiles: C:\Program Files
SpecialFolder.ProgramFilesX86:
SpecialFolder.System: C:\WINDOWS\system32
SpecialFolder.SystemX86: C:\WINDOWS\system32

Nice article for elevation options - http://www.novell.com/support/kb/doc.php?id=7010269

Configuring Applications to Always Request Elevated Rights:

Programs can be configured to always request elevation on the user level via registry settings under HKCU. These registry settings are effective on the fly, so they can be set immediately prior to launching a particular application and even removed as soon as the application is launched, if so desired. Simply create a "String Value" under "HKCU\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers" for the full path to an executable with a value of "RUN AS ADMIN". Below is an example for CMD.

Windows Registry Editor Version 5.00
[HKEY_Current_User\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers]
"c:\\windows\\system32\\cmd.exe"="RUNASADMIN"

Caller-saved registers (AKA volatile registers, or call-clobbered) are used to hold temporary quantities that need not be preserved across calls.

For that reason, it is the caller's responsibility to push these registers onto the stack or copy them somewhere else if it wants to restore this value after a procedure call.

It's normal to let a call destroy temporary values in these registers, though.

Callee-saved registers (AKA non-volatile registers, or call-preserved) are used to hold long-lived values that should be preserved across calls.

When the caller makes a procedure call, it can expect that those registers will hold the same value after the callee returns, making it the responsibility of the callee to save them and restore them before returning to the caller. Or to not touch them.

pyplot is a sub-module of matplotlib which doesn't get imported with a simple import matplotlib.

>>> import matplotlib
>>> print matplotlib.pyplot
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'pyplot'
>>> import matplotlib.pyplot
>>> 

It seems customary to do: import matplotlib.pyplot as plt at which time you can use the various functions and classes it contains:

p = plt.plot(...)

I did not see any reference to Raphael.js. So I thought I'd include it here. Raphael.js is backwards compatible all the way back to IE5 and a very early Firefox as well as all of the rest of the browsers. It uses SVG when it can and VML when it can not. What you do with it is to draw onto a canvas. Some browsers will even let you select the text that is generated. Raphael.js can be found here:

http://raphaeljs.com/

It can be as simple as creating your paper drawing area, specifying the font, font-weight, size, etc... and then telling it to put your string of text onto the paper. I am not sure if it gets around the licensing issues or not but it is drawing the text so I'm fairly certain it does circumvent the licensing issues. But check with your lawyer to be sure. :-)

You can easily write the method to do that :

  public static String toCamelCase(final String init) {
    if (init == null)
        return null;

    final StringBuilder ret = new StringBuilder(init.length());

    for (final String word : init.split(" ")) {
        if (!word.isEmpty()) {
            ret.append(Character.toUpperCase(word.charAt(0)));
            ret.append(word.substring(1).toLowerCase());
        }
        if (!(ret.length() == init.length()))
            ret.append(" ");
    }

    return ret.toString();
}

AsyncTask<CognitoCachingCredentialsProvider, Integer, Void> task = new 
AsyncTask<CognitoCachingCredentialsProvider, Integer, Void>() {

@Override
protected Void doInBackground(CognitoCachingCredentialsProvider... params) {
    AWSSessionCredentials creds = credentialsProvider.getCredentials();
    String id = credentialsProvider.getCachedIdentityId();
    credentialsProvider.refresh();
    Log.d("wooohoo", String.format("id=%s, token=%s", id, creds.getSessionToken()));
    return null;
    }
};

task.execute(credentialsProvider);

Check Answer Key 2018

One also may use the following to catch the errors:

$.ajax({
    url: url, 
    success: function (data) {
        // Handle success here
        $('#editor-content-container').html(data);
        $('#editor-container').modal('show');
    },
    cache: false
}).fail(function (jqXHR, textStatus, error) {
    // Handle error here
    $('#editor-content-container').html(jqXHR.responseText);
    $('#editor-container').modal('show');
});

json = File.ReadAllText(System.AppDomain.CurrentDomain.BaseDirectory + "App_Data\\" +download_file[0]);
DataTable dt = (DataTable)JsonConvert.DeserializeObject(json, (typeof(DataTable)));

Another Way That worked for me is to Subclass UINavigationBar And leave the drawRect Method empty !!

@IBDesignable class MONavigationBar: UINavigationBar {


// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
override func drawRect(rect: CGRect) {
    // Drawing code
}}

Is this any help?

#include <stdio.h>

#define MAX 10

int main()
{
    char grid[MAX][MAX];
    int i,j,row,col;

    printf("Please enter your grid size: ");
    scanf("%d %d", &row, &col);


    for (i = 0; i < row; i++) {
        for (j = 0; j < col; j++) {
            grid[i][j] = '.';
            printf("%c ", grid[i][j]);
        }
        printf("\n");
    }

    return 0;
}

Depending on your rights, you need sudo at beginning.

Since Python 3.5, subprocess.run() is recommended over subprocess.check_output():

>>> subprocess.run(['cat','/tmp/text.txt'], stdout=subprocess.PIPE).stdout
b'First line\nSecond line\n'

Since Python 3.7, instead of the above, you can use capture_output=true parameter to capture stdout and stderr:

>>> subprocess.run(['cat','/tmp/text.txt'], capture_output=True).stdout
b'First line\nSecond line\n'

Also, you may want to use universal_newlines=True or its equivalent since Python 3.7 text=True to work with text instead of binary:

>>> stdout = subprocess.run(['cat', '/tmp/text.txt'], capture_output=True, text=True).stdout
>>> print(stdout)
First line
Second line

See subprocess.run() documentation for more information.

I suggest that you take advantage of the fact that you can assign multiple classes to an element like so:

<ul>
    <li class="list">test1</li>
    <li class="list">test2</li>
    <li class="list last">test3</li>
    <li>test4</li>
</ul>

The last element has the list class like its siblings but also has the last class which you can use to set any CSS property you want, like so:

ul li.list {
    color: #FF0000;
}

ul li.list.last {
    background-color: #000;
}

Heres a easy and fast way using AsEnumerable().Distinct()

private DataTable RemoveDuplicatesRecords(DataTable dt)
{
    //Returns just 5 unique rows
    var UniqueRows = dt.AsEnumerable().Distinct(DataRowComparer.Default);
    DataTable dt2 = UniqueRows.CopyToDataTable();
    return dt2;
}

My Blog Article: Remove duplicate rows from datatable

If you want to have your code os-unspecific you should use println for each word

System.out.println("I");
System.out.println("am");
System.out.println("a");
System.out.println("boy");

because Windows uses "\r\n" as newline and unixoid systems use just "\n"

println always uses the correct one

You know, using a custom deleter isn't the best way to go, as you will have to mention it all over your code.
Instead, as you are allowed to add specializations to namespace-level classes in ::std as long as custom types are involved and you respect the semantics, do that:

Specialize std::default_delete:

template <>
struct ::std::default_delete<Bar> {
    default_delete() = default;
    template <class U>
    constexpr default_delete(default_delete<U>) noexcept {}
    void operator()(Bar* p) const noexcept { destroy(p); }
};

And maybe also do std::make_unique():

template <>
inline ::std::unique_ptr<Bar> ::std::make_unique<Bar>() {
    auto p = create();
    if (!p)
        throw std::runtime_error("Could not `create()` a new `Bar`.");
    return { p };
}

Use this code:

public static void main(String[] args) {
    String test = "A|B|C||D";

    String[] result = test.split("\\|");

    for (String s : result) {
        System.out.println(">" + s + "<");
    }
}

I think that would depend on what browser implementation you are refering to.

Every browser type has it's own javascript engine implementation, so it depends. You could check the sourcecode repos for Mozilla and Webkit/Khtml for different implementations.

IE is closed source however, so you may have to ask somebody at microsoft.

in my case, the problem was the configuration of pydev on Eclipse

Use object-fit: contain in css of html element img.

ex:

img {
    ...
    object-fit: contain
    ...
}

LINUX

struct timeval tv;
tv.tv_sec = 30;        // 30 Secs Timeout
tv.tv_usec = 0;        // Not init'ing this can cause strange errors
setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv,sizeof(struct timeval));

WINDOWS

DWORD timeout = SOCKET_READ_TIMEOUT_SEC * 1000;
setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof(timeout));

NOTE: You have put this setting before bind() function call for proper run

For simple objects, I like this method:

class Person {
  constructor(
    public id: String, 
    public name: String, 
    public title: String) {};

  static deserialize(input:any): Person {
    return new Person(input.id, input.name, input.title);
  }
}

var person = Person.deserialize({id: 'P123', name: 'Bob', title: 'Mr'});

Leveraging the ability to define properties in the constructor lets it be concise.

This gets you a typed object (vs all the answers that use Object.assign or some variant, which give you an Object) and doesn't require external libraries or decorators.

<xsl:if test="xpath-expression">...</xsl:if>

so for example

<xsl:if test="/html/body">body node exists</xsl:if>
<xsl:if test="not(/html/body)">body node missing</xsl:if>

Here is how the default implementation (ASP.NET Framework or ASP.NET Core) works. It uses a Key Derivation Function with random salt to produce the hash. The salt is included as part of the output of the KDF. Thus, each time you "hash" the same password you will get different hashes. To verify the hash the output is split back to the salt and the rest, and the KDF is run again on the password with the specified salt. If the result matches to the rest of the initial output the hash is verified.

Hashing:

public static string HashPassword(string password)
{
    byte[] salt;
    byte[] buffer2;
    if (password == null)
    {
        throw new ArgumentNullException("password");
    }
    using (Rfc2898DeriveBytes bytes = new Rfc2898DeriveBytes(password, 0x10, 0x3e8))
    {
        salt = bytes.Salt;
        buffer2 = bytes.GetBytes(0x20);
    }
    byte[] dst = new byte[0x31];
    Buffer.BlockCopy(salt, 0, dst, 1, 0x10);
    Buffer.BlockCopy(buffer2, 0, dst, 0x11, 0x20);
    return Convert.ToBase64String(dst);
}

Verifying:

public static bool VerifyHashedPassword(string hashedPassword, string password)
{
    byte[] buffer4;
    if (hashedPassword == null)
    {
        return false;
    }
    if (password == null)
    {
        throw new ArgumentNullException("password");
    }
    byte[] src = Convert.FromBase64String(hashedPassword);
    if ((src.Length != 0x31) || (src[0] != 0))
    {
        return false;
    }
    byte[] dst = new byte[0x10];
    Buffer.BlockCopy(src, 1, dst, 0, 0x10);
    byte[] buffer3 = new byte[0x20];
    Buffer.BlockCopy(src, 0x11, buffer3, 0, 0x20);
    using (Rfc2898DeriveBytes bytes = new Rfc2898DeriveBytes(password, dst, 0x3e8))
    {
        buffer4 = bytes.GetBytes(0x20);
    }
    return ByteArraysEqual(buffer3, buffer4);
}

In case you don't have Linq, I solved it the following way:

    private T[] GetArray<T>(IList<T> iList) where T: new()
    {
        var result = new T[iList.Count];

        iList.CopyTo(result, 0);

        return result;
    }

Hope it helps

Is this what you are looking for:

Using OBJECT CATALOG VIEWS

 SELECT T.name AS Table_Name ,
       C.name AS Column_Name ,
       P.name AS Data_Type ,
       P.max_length AS Size ,
       CAST(P.precision AS VARCHAR) + '/' + CAST(P.scale AS VARCHAR) AS Precision_Scale
FROM   sys.objects AS T
       JOIN sys.columns AS C ON T.object_id = C.object_id
       JOIN sys.types AS P ON C.system_type_id = P.system_type_id
WHERE  T.type_desc = 'USER_TABLE';

Using INFORMATION SCHEMA VIEWS

  SELECT TABLE_SCHEMA ,
       TABLE_NAME ,
       COLUMN_NAME ,
       ORDINAL_POSITION ,
       COLUMN_DEFAULT ,
       DATA_TYPE ,
       CHARACTER_MAXIMUM_LENGTH ,
       NUMERIC_PRECISION ,
       NUMERIC_PRECISION_RADIX ,
       NUMERIC_SCALE ,
       DATETIME_PRECISION
FROM   INFORMATION_SCHEMA.COLUMNS;

Reference : My Blog - http://dbalink.wordpress.com/2008/10/24/querying-the-object-catalog-and-information-schema-views/

To get your program to run, please put jsp files under web-content and not under WEB-INF because in Eclipse the files are not accessed there by the server, so try starting the server and browsing to URL:

http://localhost:8080/YourProject/yourfile.jsp

then your problem will be solved.

You need to write code in the OnLocationChanged method, because this method is called when the location has changed. I.e. you need to save the new location to return it if getLocation is called.

If you don't use the onLocationChanged it always will be the old location.

To combine both Nitzan's and Edwin's answers, I found that something like this works for me:

update = (e: React.FormEvent<EventTarget>): void => {
    let target = e.target as HTMLInputElement;
    this.props.login[target.name] = target.value;
}

sudo npm install npm@latest -g

This worked for me in ubuntu 18.04

By mid-2016 the Chromium engine (v53) supports just 3 emphasis styles:

Plain text, bold, and super-bold...

 <div style="font:normal 400 14px Arial;">Testing</div>

 <div style="font:normal 700 14px Arial;">Testing</div>

 <div style="font:normal 800 14px Arial;">Testing</div>

This is easy, at least if you want a 1-based, 1D or 2D variant array:

Sub StuffVArr()
    Dim v() As Variant
    Dim q() As Variant
    v = Evaluate("=IF(ISERROR(A1:K1), 13, 13)")
    q = Evaluate("=IF(ISERROR(A1:G48), 13, 13)")
End Sub

Byte arrays also aren't too bad:

Private Declare Sub FillMemory Lib "kernel32" Alias "RtlFillMemory" _
        (dest As Any, ByVal size As Long, ByVal fill As Byte)

Sub StuffBArr()
    Dim i(0 To 39) As Byte
    Dim j(1 To 2, 5 To 29, 2 To 6) As Byte
    FillMemory i(0), 40, 13
    FillMemory j(1, 5, 2), 2 * 25 * 5, 13
End Sub

You can use the same method to fill arrays of other numeric data types, but you're limited to only values which can be represented with a single repeating byte:

Sub StuffNArrs()
    Dim i(0 To 4) As Long
    Dim j(0 To 4) As Integer
    Dim u(0 To 4) As Currency
    Dim f(0 To 4) As Single
    Dim g(0 To 4) As Double

    FillMemory i(0), 5 * LenB(i(0)), &HFF 'gives -1
    FillMemory i(0), 5 * LenB(i(0)), &H80 'gives -2139062144
    FillMemory i(0), 5 * LenB(i(0)), &H7F 'gives 2139062143

    FillMemory j(0), 5 * LenB(j(0)), &HFF 'gives -1

    FillMemory u(0), 5 * LenB(u(0)), &HFF 'gives -0.0001

    FillMemory f(0), 5 * LenB(f(0)), &HFF 'gives -1.#QNAN
    FillMemory f(0), 5 * LenB(f(0)), &H80 'gives -1.18e-38
    FillMemory f(0), 5 * LenB(f(0)), &H7F 'gives 3.40e+38

    FillMemory g(0), 5 * LenB(g(0)), &HFF 'gives -1.#QNAN
End Sub

If you want to avoid a loop in other situations, it gets even hairier. Not really worth it unless your array is 50K entries or larger. Just set each value in a loop and you'll be fast enough, as I talked about in an earlier answer.

Always check with your business domain expert. If that's you, look for an industry standard. If, for example, the domain in question is a natural person's family name (surname) then for a UK business I'd go to the UK Govtalk data standards catalogue for person information and discover that a family name will be between 1 and 35 characters.

LTRIM(RTRIM(FCT_TYP_CD)) & ') AND (' & LTRIM(RTRIM(DEP_TYP_ID)) & ')'

I think you're missing a ) on both of the trims. Some SQL versions support just TRIM which does both L and R trims...

The difference between static and instantiated methods and properties seem to be one of the biggest obstacles to those just starting out with OOP PHP in PHP 5.

The double colon operator (which is called the Paamayim Nekudotayim from Hebrew - trivia) is used when calling an object or property from a static context. This means an instance of the object has not been created yet.

The arrow operator, conversely, calls methods or properties that from a reference of an instance of the object.

Static methods can be especially useful in object models that are linked to a database for create and delete methods, since you can set the return value to the inserted table id and then use the constructor to instantiate the object by the row id.

Building on @Michael Kropat's answer I added a parameter to prepend the new path to the existing PATHvariable and a check to avoid the addition of a non-existing path:

function Add-EnvPath {
    param(
        [Parameter(Mandatory=$true)]
        [string] $Path,

        [ValidateSet('Machine', 'User', 'Session')]
        [string] $Container = 'Session',

        [Parameter(Mandatory=$False)]
        [Switch] $Prepend
    )

    if (Test-Path -path "$Path") {
        if ($Container -ne 'Session') {
            $containerMapping = @{
                Machine = [EnvironmentVariableTarget]::Machine
                User = [EnvironmentVariableTarget]::User
            }
            $containerType = $containerMapping[$Container]

            $persistedPaths = [Environment]::GetEnvironmentVariable('Path', $containerType) -split ';'
            if ($persistedPaths -notcontains $Path) {
                if ($Prepend) {
                    $persistedPaths = ,$Path + $persistedPaths | where { $_ }
                    [Environment]::SetEnvironmentVariable('Path', $persistedPaths -join ';', $containerType)
                }
                else {
                    $persistedPaths = $persistedPaths + $Path | where { $_ }
                    [Environment]::SetEnvironmentVariable('Path', $persistedPaths -join ';', $containerType)
                }
            }
        }

        $envPaths = $env:Path -split ';'
        if ($envPaths -notcontains $Path) {
            if ($Prepend) {
                $envPaths = ,$Path + $envPaths | where { $_ }
                $env:Path = $envPaths -join ';'
            }
            else {
                $envPaths = $envPaths + $Path | where { $_ }
                $env:Path = $envPaths -join ';'
            }
        }
    }
}

Updated Answer

Now that we can use dataFor() to check if the binding has been applied, I would prefer check the data binding, rather than cleanNode() and applyBindings().

Like this:

var koNode = document.getElementById('formEdit');
var hasDataBinding = !!ko.dataFor(koNode);
console.log('has data binding', hasDataBinding);
if (!hasDataBinding) { ko.applyBindings(vm, koNode);}

Original Answer.

A lot of answers already!

First, let's say it is fairly common that we need to do the binding multiple times in a page. Say, I have a form inside the Bootstrap modal, which will be loaded again and again. Many of the form input have two-way binding.

I usually take the easy route: clearing the binding every time before the the binding.

var koNode = document.getElementById('formEdit');
ko.cleanNode(koNode);
ko.applyBindings(vm, koNode);

Just make sure here koNode is required, for, ko.cleanNode() requires a node element, even though we can omit it in ko.applyBinding(vm).

In Angular, <a>s are directives. As such, if you have an empty href or no href, Angular will call event.preventDefault.

From the source:

    element.on('click', function(event){
      // if we have no href url, then don't navigate anywhere.
      if (!element.attr(href)) {
        event.preventDefault();
      }
    });

Here's a plnkr demonstrating the missing href scenario.

In below showToast() method you have to pass another parameter for context or application context by doing so you can try it.

  public void showToast(String error, Context applicationContext){
        LayoutInflater inflater = getLayoutInflater();
        View view = inflater.inflate(R.layout.custom_toast, (ViewGroup)      
        findViewById(R.id.toast_root));
        TextView text = (TextView) findViewById(R.id.toast_error);
        text.setText(error);
        Toast toast = new Toast(applicationContext);
        toast.setGravity(Gravity.TOP | Gravity.FILL_HORIZONTAL, 0, 0);
        toast.setDuration(Toast.LENGTH_SHORT);
        toast.setView(view);
        toast.show();
}

Above answers are correct but i am addressing to them who are newbie here for their simplicity

especially for setting build trigger for pipeline:

Consider you have two Github branches: 1.master, 2.dev, and Jenkinsfile (where pipeline script is written) and other files are available on each branch

Configure new Pipeline project (for dev branch)

##1.Code integration with git-plugin and cron based approach Prerequisite git plugin should be installed and configure it with your name and email

1. General section.Check checkbox - 'This project is parameterized’ and add Name-SBRANCH Default Value-'refs/remotes/origin/dev'
2. Build triggers section" Check checkbox - 'Poll SCM' and schedule as per need for checking commits e.g. '*/1 * * * *' to check every minute
3. Pipeline definition section.Select - Pipeline script from SCM—> select git—> addRepository URL—>add git credentials—> choose advanced—> add Name- origin, RefSpec- '+refs/heads/dev:refs/remotes/origin/dev'(dev is github branch )—> Branches to build - ${SBRANCH} (Parameter name from ref 1st point)—> Script Path—> Jenkinsfile —> Uncheck Lightweightcheckout
4. Apply—> save

##2.Code integration: github-plugin and webhook approach Prerequisite Github plugin should be installed and Github server should be configured, connection should be tested if not consider following configuration

Configure Github plugin with account on Jenkins

GitHub section Add Github server if not present API URL: https://api.github.com Credentials: Add secret text (Click add button: select type secret text) with value Personal Access Token (Generate it from your Github accounts—> settings—> developer setting—> personal access token—> add token—> check scopes—> copy the token) Test Connection—> Check whether it is connected to your Github account or not Check checkbox with Manage Hooks In advance sub-section just select previous credential for 'shared secret'

Add webhook if not added to your repository by

1. Go to Github Repository setting —> add webhook—> add URL
   http://Public_IP:Jenkins_PORT/github-webhook/
2. Or if you don't have Public_IP use ngrok. Install, authenticate, get public IP from command ./ngrok http 80(use your jenkins_port) then add webhook —> add URL http://Ngrok_IP/github-webhook/
3. Test it by delivering payload from webhook page and check whether you get 200 status or not.

If you have Github Pull requests plugin configure it also with published Jenkins URL.

1. General section.Check checkbox - 'Github project' add project URL -(github link ending with '.git/')
2. General section.Check checkbox - 'This project is parameterized' and add Name-SBRANCH Default Value-'refs/remotes/origin/dev'
3. Build triggers.section.Check checkbox - 'GitHub hook trigger for GITScm polling'
4. Pipeline def'n section: Select - Pipeline script from SCM—> select git—> addRepository URL—> add git credentials—>choose advanced —>add Name- origin, RefSpec- '+refs/heads/dev:refs/remotes/origin/dev' (dev is github branch ) —> Branches to build - ${SBRANCH} (Parameter name from ref 1.st point)—> Script Path—> Jenkinsfile—> Uncheck Lightweightcheckout
5. Apply—> save

Updating @Chackle's answer for Swift 2.x:

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    if let touch = touches.first {
        let currentPoint = touch.locationInView(self)
        // do something with your currentPoint
    }
}

override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
    if let touch = touches.first {
        let currentPoint = touch.locationInView(self)
        // do something with your currentPoint
    }
}

override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
    if let touch = touches.first {
        let currentPoint = touch.locationInView(self)
        // do something with your currentPoint
    }
}

You also need to annotate the method with @JavascriptInterface if your targetSdkVersion is >= 17 - because there is new security requirements in SDK 17, i.e. all javascript methods must be annotated with @JavascriptInterface. Otherwise you will see error like: Uncaught TypeError: Object [object Object] has no method 'processHTML' at null:1

This error is gone for me by remove the AVD and create a new one.

after some compile and clean, the error was gone away.

<!DOCTYPE html>
<?php
$con = new mysqli("localhost","root","","form");

?>



<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
<script type="text/javascript">
$(document).ready(function(){
 //$("form").submit(function(e){

     $("#btn1").click(function(e){
     e.preventDefault();
    // alert('here');
        $(".apnew").append('<input type="text" placeholder="Enter youy Name" name="e1[]"/><br>');

    });
    //}
});
</script>

</head>

<body>
<h2><b>Register Form<b></h2>
<form method="post" enctype="multipart/form-data">
<table>
<tr><td>Name:</td><td><input type="text" placeholder="Enter youy Name" name="e1[]"/>
<div class="apnew"></div><button id="btn1">Add</button></td></tr>
<tr><td>Image:</td><td><input type="file"  name="e5[]" multiple="" accept="image/jpeg,image/gif,image/png,image/jpg"/></td></tr>

<tr><td>Address:</td><td><textarea  cols="20" rows="4" name="e2"></textarea></td></tr>
<tr><td>Contact:</td><td><div id="textnew"><input  type="number"  maxlength="10" name="e3"/></div></td></tr>
<tr><td>Gender:</td><td><input type="radio"  name="r1" value="Male" checked="checked"/>Male<input type="radio"  name="r1" value="feale"/>Female</td></tr>
<tr><td><input  id="submit" type="submit" name="t1" value="save" /></td></tr>
</table>
<?php
//echo '<pre>';print_r($_FILES);exit();
if(isset($_POST['t1']))
{
$values = implode(", ", $_POST['e1']);
$imgarryimp=array();
foreach($_FILES["e5"]["tmp_name"] as $key=>$val){


move_uploaded_file($_FILES["e5"]["tmp_name"][$key],"images/".$_FILES["e5"]["name"][$key]);

                     $fname = $_FILES['e5']['name'][$key];
                     $imgarryimp[]=$fname;
                     //echo $fname;

                     if(strlen($fname)>0)
                      {
                         $img = $fname;
                      }
                      $d="insert into form(name,address,contact,gender,image)values('$values','$_POST[e2]','$_POST[e3]','$_POST[r1]','$img')";

       if($con->query($d)==TRUE)
         {
         echo "Yoy Data Save Successfully!!!";
         }
}
exit;





                      // echo $values;exit;
                      //foreach($_POST['e1'] as $row) 
    //{ 

    $d="insert into form(name,address,contact,gender,image)values('$values','$_POST[e2]','$_POST[e3]','$_POST[r1]','$img')";

       if($con->query($d)==TRUE)
         {
         echo "Yoy Data Save Successfully!!!";
         }
    //}
    //exit;


}
?>

</form>

<table>
<?php 
$t="select * from form";
$y=$con->query($t);
foreach ($y as $q);
{
?>
<tr>
<td>Name:<?php echo $q['name'];?></td>
<td>Address:<?php echo $q['address'];?></td>
<td>Contact:<?php echo $q['contact'];?></td>
<td>Gender:<?php echo $q['gender'];?></td>
</tr>
<?php }?>
</table>

</body>
</html>

In my case it was permission issue. Open application folder properties -> Security tab -> Edit -> Add

• IIS AppPool\[DefaultAppPool or any other apppool] (if use ApplicationPoolIdentity option)
• IUSRS
• IIS_IUSRS

A simple

echo "Y Y N N Y N Y Y N" | ./your_script

This allow you to pass any sequence of "Y" or "N" to your script.

mysql>show processlist;

mysql> kill "number from first col";

I know this doesn't answer the question exactly, but for ppl coming in from google that happen to use Gradle for their dependency management:

I managed to get rid of all xerces/Java8 issues with Gradle like this:

configurations {
    all*.exclude group: 'xml-apis'
    all*.exclude group: 'xerces'
}

You can achieve this by adding Gesture Recogniser in your code.

Step 1: ViewController.m:

// Declare the Gesture.
UITapGestureRecognizer *gesRecognizer = [[UITapGestureRecognizer alloc] 
                                          initWithTarget:self 
                                          action:@selector(handleTap:)];
gesRecognizer.delegate = self;

// Add Gesture to your view.
[yourView addGestureRecognizer:gesRecognizer]; 

Step 2: ViewController.m:

// Declare the Gesture Recogniser handler method.
- (void)handleTap:(UITapGestureRecognizer *)gestureRecognizer{
   NSLog(@"Tapped");
}

NOTE: here yourView in my case was @property (strong, nonatomic) IBOutlet UIView *localView;

EDIT: *localView is the white box in Main.storyboard from below

In a word - speed. An index for up to a million rows fits in a 32-bit word, so it can be used efficiently on 32-bit processors. Function arguments that fit in a CPU register are extremely efficient, while ones that are larger require accessing memory on each function call, a far slower operation. Updating a spreadsheet can be an intensive operation involving many cell references, so speed is important. Besides, the Excel team expects that anyone dealing with more than a million rows will be using a database rather than a spreadsheet.

It is the underlying urllib3 library that does the retrying. To set a different maximum retry count, use alternative transport adapters:

from requests.adapters import HTTPAdapter

s = requests.Session()
s.mount('http://stackoverflow.com', HTTPAdapter(max_retries=5))

The max_retries argument takes an integer or a Retry() object; the latter gives you fine-grained control over what kinds of failures are retried (an integer value is turned into a Retry() instance which only handles connection failures; errors after a connection is made are by default not handled as these could lead to side-effects).

Old answer, predating the release of requests 1.2.1:

The requests library doesn't really make this configurable, nor does it intend to (see this pull request). Currently (requests 1.1), the retries count is set to 0. If you really want to set it to a higher value, you'll have to set this globally:

import requests

requests.adapters.DEFAULT_RETRIES = 5

This constant is not documented; use it at your own peril as future releases could change how this is handled.

Update: and this did change; in version 1.2.1 the option to set the max_retries parameter on the HTTPAdapter() class was added, so that now you have to use alternative transport adapters, see above. The monkey-patch approach no longer works, unless you also patch the HTTPAdapter.__init__() defaults (very much not recommended).

I was having the similar issue and solved by understanding the Classes in asp.net C#

I want to read following JSON string :

[
    {
        "resultList": [
            {
                "channelType": "",
                "duration": "2:29:30",
                "episodeno": 0,
                "genre": "Drama",
                "genreList": [
                    "Drama"
                ],
                "genres": [
                    {
                        "personName": "Drama"
                    }
                ],
                "id": 1204,
                "language": "Hindi",
                "name": "The Great Target",
                "productId": 1204,
                "productMasterId": 1203,
                "productMasterName": "The Great Target",
                "productName": "The Great Target",
                "productTypeId": 1,
                "productTypeName": "Movie",
                "rating": 3,
                "releaseyear": "2005",
                "showGoodName": "Movies ",
                "views": 8333
            },
            {
                "channelType": "",
                "duration": "2:30:30",
                "episodeno": 0,
                "genre": "Romance",
                "genreList": [
                    "Romance"
                ],
                "genres": [
                    {
                        "personName": "Romance"
                    }
                ],
                "id": 1144,
                "language": "Hindi",
                "name": "Mere Sapnon Ki Rani",
                "productId": 1144,
                "productMasterId": 1143,
                "productMasterName": "Mere Sapnon Ki Rani",
                "productName": "Mere Sapnon Ki Rani",
                "productTypeId": 1,
                "productTypeName": "Movie",
                "rating": 3,
                "releaseyear": "1997",
                "showGoodName": "Movies ",
                "views": 6482
            },
            {
                "channelType": "",
                "duration": "2:34:07",
                "episodeno": 0,
                "genre": "Drama",
                "genreList": [
                    "Drama"
                ],
                "genres": [
                    {
                        "personName": "Drama"
                    }
                ],
                "id": 1520,
                "language": "Telugu",
                "name": "Satyameva Jayathe",
                "productId": 1520,
                "productMasterId": 1519,
                "productMasterName": "Satyameva Jayathe",
                "productName": "Satyameva Jayathe",
                "productTypeId": 1,
                "productTypeName": "Movie",
                "rating": 3,
                "releaseyear": "2004",
                "showGoodName": "Movies ",
                "views": 9910
            }
        ],
        "resultSize": 1171,
        "pageIndex": "1"
    }
]

My asp.net c# code looks like following

First, Class3.cs page created in APP_Code folder of Web application

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections;
using System.Text;
using System.IO;
using System.Web.Script.Serialization;
using System.Collections.Generic;

/// <summary>
/// Summary description for Class3
/// </summary>
public class Class3
{

    public List<ListWrapper_Main> ResultList_Main { get; set; }

    public class ListWrapper_Main
    {
        public List<ListWrapper> ResultList { get; set; }

        public string resultSize { get; set; }
        public string pageIndex { get; set; }
    }

    public class ListWrapper
    {
        public string channelType { get; set; }
        public string duration { get; set; }
        public int episodeno { get; set; }
        public string genre { get; set; }
        public string[] genreList { get; set; }
        public List<genres_cls> genres { get; set; }
        public int id { get; set; }
        public string imageUrl { get; set; }
        //public string imageurl { get; set; }
        public string language { get; set; }
        public string name { get; set; }
        public int productId { get; set; }
        public int productMasterId { get; set; }
        public string productMasterName { get; set; }
        public string productName { get; set; }
        public int productTypeId { get; set; }
        public string productTypeName { get; set; }
        public decimal rating { get; set; }
        public string releaseYear { get; set; }
        //public string releaseyear { get; set; }
        public string showGoodName { get; set; }
        public string views { get; set; }
    }
    public class genres_cls
    {
        public string personName { get; set; }
    }

}

Then, Browser page that reads the string/JSON string listed above and displays/Deserialize the JSON objects and displays the data

JavaScriptSerializer ser = new JavaScriptSerializer();


        string final_sb = sb.ToString();

        List<Class3.ListWrapper_Main> movieInfos = ser.Deserialize<List<Class3.ListWrapper_Main>>(final_sb.ToString());

        foreach (var itemdetail in movieInfos)
        {

            foreach (var itemdetail2 in itemdetail.ResultList)
            {
                Response.Write("channelType=" + itemdetail2.channelType + "<br/>");
                Response.Write("duration=" + itemdetail2.duration + "<br/>");
                Response.Write("episodeno=" + itemdetail2.episodeno + "<br/>");
                Response.Write("genre=" + itemdetail2.genre + "<br/>");

                string[] genreList_arr = itemdetail2.genreList;
                for (int i = 0; i < genreList_arr.Length; i++)
                    Response.Write("genreList1=" + genreList_arr[i].ToString() + "<br>");

                foreach (var genres1 in itemdetail2.genres)
                {
                    Response.Write("genres1=" + genres1.personName + "<br>");
                }

                Response.Write("id=" + itemdetail2.id + "<br/>");
                Response.Write("imageUrl=" + itemdetail2.imageUrl + "<br/>");
                //Response.Write("imageurl=" + itemdetail2.imageurl + "<br/>");
                Response.Write("language=" + itemdetail2.language + "<br/>");
                Response.Write("name=" + itemdetail2.name + "<br/>");
                Response.Write("productId=" + itemdetail2.productId + "<br/>");
                Response.Write("productMasterId=" + itemdetail2.productMasterId + "<br/>");
                Response.Write("productMasterName=" + itemdetail2.productMasterName + "<br/>");
                Response.Write("productName=" + itemdetail2.productName + "<br/>");
                Response.Write("productTypeId=" + itemdetail2.productTypeId + "<br/>");
                Response.Write("productTypeName=" + itemdetail2.productTypeName + "<br/>");
                Response.Write("rating=" + itemdetail2.rating + "<br/>");
                Response.Write("releaseYear=" + itemdetail2.releaseYear + "<br/>");
                //Response.Write("releaseyear=" + itemdetail2.releaseyear + "<br/>");
                Response.Write("showGoodName=" + itemdetail2.showGoodName + "<br/>");
                Response.Write("views=" + itemdetail2.views + "<br/><br>");
                //Response.Write("resultSize" + itemdetail2.resultSize + "<br/>");
                //  Response.Write("pageIndex" + itemdetail2.pageIndex + "<br/>");


            }



            Response.Write("resultSize=" + itemdetail.resultSize + "<br/><br>");
            Response.Write("pageIndex=" + itemdetail.pageIndex + "<br/><br>");

        }

'sb' is the actual string, i.e. JSON string of data mentioned very first on top of this reply

This is basically - web application asp.net c# code....

N joy...

An Example with python3 and the requests library as mentioned by @leoluk:

pip install requests

Script req.py:

import requests

url='http://localhost'

# in case you need a session
cd = { 'sessionid': '123..'}

r = requests.get(url, cookies=cd)
# or without a session: r = requests.get(url)
r.content

Now,execute it and you will get the html source of localhost!

python3 req.py

You can use myDict.has_key(keyname) as well to validate if the key exists.

Edit based on the comments -

This would work only on versions lower than 3.1. has_key has been removed from Python 3.1. You should use the in operator if you are using Python 3.1

In my case, it turned out to be a simple case of spacing.

Turns out, i had a space inserted after the last ; and before ""C:\Program Files\MySQL\MySQL Server 5.7" For this very simple reason, no matter what i did, MySql was still not being recognized.

Once i eliminated the spaces before and after path, it worked perfectly.

In retrospect, seems like a very obvious answer, but nobody's mentioned it anywhere.

Also, i'm new to this whole windows thing, so please excuse me if it sounds very simple.

if (Enum.IsDefined(typeof(foo), value))
{
   return (Foo)Enum.Parse(typeof(foo), value);
}

Hope this helps

Edit This answer got down voted as value in my example is a string, where as the question asked for an int. My applogies; the following should be a bit clearer :-)

Type fooType = typeof(foo);

if (Enum.IsDefined(fooType , value.ToString()))
{
   return (Foo)Enum.Parse(fooType , value.ToString());
}

I want to inform this interesting case, after tried all the above method, the error is still there. The weird thing is it works on a Windows 7 computer, but on Windows XP it is not. Then I use dependency walker and found on the Windows XP there is no VC++ Runtime as my dll requirement. After installing VC++ Runtime package here it works like a charm. The thing that disturbed me is it keeps telling Can't find dependent libraries, while intuitively the JNI dependent dll is there, however it finally turns out the JNI dependent dll requires another dependent dl. I hope this helps.

div.style yields an object (CSSStyleDeclaration). Since it's an object, you can alternatively use the following:

div.style["top"] = "200px";
div.style["left"] = "200px";

This is useful, for example, if you need to access a "variable" property:

div.style[prop] = "200px";

In a generic sense an webservice IS a API over HTTP. They often utilize JSON or XML, but there are some other approaches as well.

The syntax is:

=GOOGLEFINANCE(ticker, [attribute], [start_date], [num_days|end_date], [interval])

Sample usage:

=GOOGLEFINANCE("GOOG", "price", DATE(2014,1,1), DATE(2014,12,31), "DAILY")
=GOOGLEFINANCE("GOOG","price",TODAY()-30,TODAY())
=GOOGLEFINANCE(A2,A3)
=117.80*Index(GOOGLEFINANCE("CURRENCY:EURGBP", "close", DATE(2014,1,1)), 2, 2)

For instance if you'd like to convert the rate on specific date, here is some more advanced example:

=IF($C2 = "GBP", "", Index(GoogleFinance(CONCATENATE("CURRENCY:", C2, "GBP"), "close", DATE(year($A2), month($A2), day($A2)), DATE(year($A2), month($A2), day($A2)+1), "DAILY"), 2))

where $A2 is your date (e.g. 01/01/2015) and C2 is your currency (e.g. EUR).

See more samples at Docs editors Help at Google.

You need add href property and check indexOf instead of contains

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<script type="text/javascript">_x000D_
  $(document).ready(function() {_x000D_
    if (window.location.href.indexOf("franky") > -1) {_x000D_
      alert("your url contains the name franky");_x000D_
    }_x000D_
  });_x000D_
</script>

There are three unique situations:

• 4 numbers, e.g. Margin="a,b,c,d".
• 2 numbers, e.g. Margin="a,b".
• 1 number, e.g. Margin="a".

4 Numbers

If there are 4 numbers, then its left, top, right, bottom (a clockwise circle starting from the middle left margin). First number is always the "West" like "WPF":

<object Margin="left,top,right,bottom"/>

Example: if we use Margin="10,20,30,40" it generates:

2 Numbers

If there are 2 numbers, then the first is left & right margin thickness, the second is top & bottom margin thickness. First number is always the "West" like "WPF":

<object Margin="a,b"/> // Equivalent to Margin="a,b,a,b".

Example: if we use Margin="10,30", the left & right margin are both 10, and the top & bottom are both 30.

1 Number

If there is 1 number, then the number is repeated (its essentially a border thickness).

<object Margin="a"/> // Equivalent to Margin="a,a,a,a".

Example: if we use Margin="20" it generates:

Update 2020-05-27

Have been working on a large-scale WPF application for the past 5 years with over 100 screens. Part of a team of 5 WPF/C#/Java devs. We eventually settled on either using 1 number (for border thickness) or 4 numbers. We never use 2. It is consistent, and seems to be a good way to reduce cognitive load when developing.

The rule:

All width numbers start on the left (the "West" like "WPF") and go clockwise (if two numbers, only go clockwise twice, then mirror the rest).

For general use, solutions involving the StringBuilder class are best for repeating multi-character strings. It's optimized to handle the combination of large numbers of strings in a way that simple concatenation can't and that would be difficult or impossible to do more efficiently by hand. The StringBuilder solutions shown here use O(N) iterations to complete, a flat rate proportional to the number of times it is repeated.

However, for very large number of repeats, or where high levels of efficiency must be squeezed out of it, a better approach is to do something similar to StringBuilder's basic functionality but to produce additional copies from the destination, rather than from the original string, as below.

    public static string Repeat_CharArray_LogN(this string str, int times)
    {
        int limit = (int)Math.Log(times, 2);
        char[] buffer = new char[str.Length * times];
        int width = str.Length;
        Array.Copy(str.ToCharArray(), buffer, width);

        for (int index = 0; index < limit; index++)
        {
            Array.Copy(buffer, 0, buffer, width, width);
            width *= 2;
        }
        Array.Copy(buffer, 0, buffer, width, str.Length * times - width);

        return new string(buffer);
    }

This doubles the length of the source/destination string with each iteration, which saves the overhead of resetting counters each time it would go through the original string, instead smoothly reading through and copying the now much longer string, something that modern processors can do much more efficiently.

It uses a base-2 logarithm to find how many times it needs to double the length of the string and then proceeds to do so that many times. Since the remainder to be copied is now less than the total length it is copying from, it can then simply copy a subset of what it has already generated.

I have used the Array.Copy() method over the use of StringBuilder, as a copying of the content of the StringBuilder into itself would have the overhead of producing a new string with that content with each iteration. Array.Copy() avoids this, while still operating with an extremely high rate of efficiency.

This solution takes O(1 + log N) iterations to complete, a rate that increases logarithmically with the number of repeats (doubling the number of repeats equals one additional iteration), a substantial savings over the other methods, which increase proportionally.

I was able to figure it out. In case someone wants to know below the code that worked for me:

ASCIIEncoding ascii = new ASCIIEncoding();
byte[] byteArray = Encoding.UTF8.GetBytes(sOriginal);
byte[] asciiArray = Encoding.Convert(Encoding.UTF8, Encoding.ASCII, byteArray);
string finalString = ascii.GetString(asciiArray);

Let me know if there is a simpler way o doing it.

I can't get to your google docs file at the moment but there are some issues with your code that I will try to address while answering

Sub stituterangersNEW()
Dim t As Range
Dim x As Range
Dim dify As Boolean
Dim difx As Boolean
Dim time2 As Date
Dim time1 As Date

    'You said time1 doesn't change, so I left it in a singe cell.
    'If that is not correct, you will have to play with this some more.
    time1 = Range("A6").Value

    'Looping through each of our output cells.
    For Each t In Range("B7:E9") 'Change these to match your real ranges.

        'Looping through each departure date/time.
        '(Only one row in your example. This can be adjusted if needed.)
        For Each x In Range("B2:E2") 'Change these to match your real ranges.
            'Check to see if our dep time corresponds to
            'the matching column in our output
            If t.Column = x.Column Then
                'If it does, then check to see what our time value is
                If x > 0 Then
                    time2 = x.Value
                    'Apply the change to the output cell.
                    t.Value = time1 - time2
                    'Exit out of this loop and move to the next output cell.
                    Exit For
                End If
            End If
            'If the columns don't match, or the x value is not a time
            'then we'll move to the next dep time (x)
        Next x
    Next t

End Sub

EDIT

I changed you worksheet to play with (see above for the new Sub). This probably does not suite your needs directly, but hopefully it will demonstrate the conept behind what I think you want to do. Please keep in mind that this code does not follow all the coding best preactices I would recommend (e.g. validating the time is actually a TIME and not some random other data type).

     A                      B                   C                   D                  E
1    LOAD_NUMBER            1                   2                   3                  4
2    DEPARTURE_TIME_DATE    11/12/2011 19:30    11/12/2011 19:30    11/12/2011 19:30    11/12/2011 20:00                
4    Dry_Refrig 7585.1  0   10099.8 16700
6    1/4/2012 19:30

Using the sub I got this output:

    A           B             C             D             E
7   Friday      1272:00:00    1272:00:00    1272:00:00    1271:30:00
8   Saturday    1272:00:00    1272:00:00    1272:00:00    1271:30:00
9   Thursday    1272:00:00    1272:00:00    1272:00:00    1271:30:00

A short way to reverse without additional libraries, imports, or static references.

int[] a = {1,2,3,4,5,6,7,23,9}, b; //compound declaration
var j = a.length;
b = new int[j];
for (var i : a)
    b[--j] = i; //--j so you don't have to subtract 1 from j. Otherwise you would get ArrayIndexOutOfBoundsException;
System.out.println(Arrays.toString(b));

Of course if you actually need a to be the reversed array just use

a = b; //after the loop

Are your sure this is a css issue ? There are some posts on google around this issue: http://productforums.google.com/forum/#!category-topic/chrome/discuss-chrome/eMlLBcKqd2s

It may be related to the print process. On safari, which is webkit also, there is a checkbox to print background images and colors in the printer dialog.

A lot of people come to this page with the goal of finding the webpack config and files in order to add their own configuration to them. Another way to achieve this without running npm run eject is to use react-app-rewired. This allows you to overwrite your webpack config file without ejecting.

i'll make an example, first decide what browser you want to emulate, in this case i chose Firefox 60.6.1esr (64-bit), and check what GET request it issues, this can be obtained with a simple netcat server (MacOS bundles netcat, most linux distributions bunles netcat, and Windows users can get netcat from.. Cygwin.org , among other places),

setting up the netcat server to listen on port 9999: nc -l 9999

now hitting http://127.0.0.1:9999 in firefox, i get:

$ nc -l 9999
GET / HTTP/1.1
Host: 127.0.0.1:9999
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
Upgrade-Insecure-Requests: 1

now let us compare that with this simple script:

<?php
$ch=curl_init("http://127.0.0.1:9999");
curl_exec($ch);

i get:

$ nc -l 9999
GET / HTTP/1.1
Host: 127.0.0.1:9999
Accept: */*

there are several missing headers here, they can all be added with the CURLOPT_HTTPHEADER option of curl_setopt, but the User-Agent specifically should be set with CURLOPT_USERAGENT instead (it will be persistent across multiple calls to curl_exec() and if you use CURLOPT_FOLLOWLOCATION then it will persist across http redirections as well), and the Accept-Encoding header should be set with CURLOPT_ENCODING instead (if they're set with CURLOPT_ENCODING then curl will automatically decompress the response if the server choose to compress it, but if you set it via CURLOPT_HTTPHEADER then you must manually detect and decompress the content yourself, which is a pain in the ass and completely unnecessary, generally speaking) so adding those we get:

<?php
$ch=curl_init("http://127.0.0.1:9999");
curl_setopt_array($ch,array(
        CURLOPT_USERAGENT=>'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0',
        CURLOPT_ENCODING=>'gzip, deflate',
        CURLOPT_HTTPHEADER=>array(
                'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
                'Accept-Language: en-US,en;q=0.5',
                'Connection: keep-alive',
                'Upgrade-Insecure-Requests: 1',
        ),
));
curl_exec($ch);

now running that code, our netcat server gets:

$ nc -l 9999
GET / HTTP/1.1
Host: 127.0.0.1:9999
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0
Accept-Encoding: gzip, deflate
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Connection: keep-alive
Upgrade-Insecure-Requests: 1

and voila! our php-emulated browser GET request should now be indistinguishable from the real firefox GET request :)

this next part is just nitpicking, but if you look very closely, you'll see that the headers are stacked in the wrong order, firefox put the Accept-Encoding header in line 6, and our emulated GET request puts it in line 3.. to fix this, we can manually put the Accept-Encoding header in the right line,

<?php
$ch=curl_init("http://127.0.0.1:9999");
curl_setopt_array($ch,array(
        CURLOPT_USERAGENT=>'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0',
        CURLOPT_ENCODING=>'gzip, deflate',
        CURLOPT_HTTPHEADER=>array(
                'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
                'Accept-Language: en-US,en;q=0.5',
                'Accept-Encoding: gzip, deflate',
                'Connection: keep-alive',
                'Upgrade-Insecure-Requests: 1',
        ),
));
curl_exec($ch);

running that, our netcat server gets:

$ nc -l 9999
GET / HTTP/1.1
Host: 127.0.0.1:9999
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: keep-alive
Upgrade-Insecure-Requests: 1

problem solved, now the headers is even in the correct order, and the request seems to be COMPLETELY INDISTINGUISHABLE from the real firefox request :) (i don't actually recommend this last step, it's a maintenance burden to keep CURLOPT_ENCODING in sync with the custom Accept-Encoding header, and i've never experienced a situation where the order of the headers are significant)

var Text = File.ReadAllLines("Path"); foreach (var i in Text) {    var SplitText = i.Split().Where(x=> x.Lenght>1).ToList();    //@Array1 add SplitText[0]    //@Array2 add SpliteText[1]   }  

You can use this to check the exception and the inner exception for a Win32Exception derived exception.

catch (Exception e) {  
    var w32ex = e as Win32Exception;
    if(w32ex == null) {
        w32ex = e.InnerException as Win32Exception;
    }    
    if(w32ex != null) {
        int code =  w32ex.ErrorCode;
        // do stuff
    }    
    // do other stuff   
}

Starting with C# 6, when can be used in a catch statement to specify a condition that must be true for the handler for a specific exception to execute.

catch (Win32Exception ex) when (ex.InnerException is Win32Exception) {
    var w32ex = (Win32Exception)ex.InnerException;
    var code =  w32ex.ErrorCode;
}

As in the comments, you really need to see what exception is actually being thrown to understand what you can do, and in which case a specific catch is preferred over just catching Exception. Something like:

  catch (BlahBlahException ex) {  
      // do stuff   
  }

Also System.Exception has a HRESULT

 catch (Exception ex) {  
     var code = ex.HResult;
 }

However, it's only available from .NET 4.5 upwards.

ASP.NET Technical Articles

SUMMARY: In ASP.NET, every Web page derives from the System.Web.UI.Page class. The Page class aggregates an instance of the HttpSession object for session data. The Page class exposes different events and methods for customization. In particular, the OnInit method is used to set the initialize state of the Page object. If the request does not have the Session cookie, a new Session cookie will be issued to the requester.

EDIT:

Session: A Concept for Beginners

SUMMARY: Session is created when user sends a first request to the server for any page in the web application, the application creates the Session and sends the Session ID back to the user with the response and is stored in the client machine as a small cookie. So ideally the "machine that has disabled the cookies, session information will not be stored".

Keep it in iframe, dynamically bind data from object.

"https://www.google.com/maps/embed/v1/place?key=[APIKEY]%20&q=" + content..Latitude + ',' + content.Longitude;

References for longitude and Latitude.
https://developers.google.com/maps/documentation/embed/guide

Note:[APIKEY] will expire in 60days and regenerate key.

google-maps google-maps-embed

It sounds like you're not instantiating your class. That's the primary reason I get the "an object reference is required" error.

MyClass myClass = new MyClass();

once you've added that line you can then call your method

myClass.myMethod();

Also, are all of your classes in the same namespace? When I was first learning c# this was a common tripping point for me.

On the Mac version of Android Studio Beta 1.2, it's under

Android Studio->preferences->Build, Execution, Deployment->Compiler

The command

x/i $pc

can be set to run all the time using the usual configuration mechanism.

Simple Explanation (without code)

Discussion of the semantics of the question is fairly nuanced (and very academic), but here's the general idea:

Duck Typing

(“If it walks like a duck and quacks like a duck then it is a duck.”) - YES! but what does that mean??! This is best illustrated by example:

Examples of Duck Typing functionality:

Imagine I have a magic wand. It has special powers. If I wave the wand and say "Drive!" to a car, well then, it drives!

Does it work on other things? Not sure: so I try it on a truck. Wow - it drives too! I then try it on planes, trains and 1 Woods (they are a type of golf club which people use to 'drive' a golf ball). They all drive!

But would it work on say, a teacup? Error: KAAAA-BOOOOOOM! that didn't work out so good. ====> Teacups can't drive!! duh!?

This is basically the concept of duck typing. It's a try-before-you-buy system. If it works, all is well. But if it fails, like a grenade still in your hand, it's gonna blow up in your face.

In other words, we are interested in what the object can do, rather than with what the object is.

Example: statically typed languages

If we were concerned with what the object actually was, then our magic trick will work only on pre-set, authorised types - in this case cars, but will fail on other objects which can drive: trucks, mopeds, tuk-tuks etc. It won't work on trucks because our magic wand is expecting it to only work on cars.

In other words, in this scenario, the magic wand looks very closely at what the object is (is it a car?) rather than what the object can do (e.g. whether cars, trucks etc. can drive).

The only way you can get a truck to drive is if you can somehow get the magic wand to expect both trucks and cars (perhaps by "implementing a common interface"). If you don't know what that means then just ignore it for the moment.

Summary: Key take-out

What's important in duck typing is what the object can actually do, rather than what the object is.

You can set the width in pixels via inline styling:

<input type="text" name="text" style="width: 195px;">

You can also set the width with a visible character length:

<input type="text" name="text" size="35">

The different between getTextBounds and measureText is described with the image below.

In short,

1. getTextBounds is to get the RECT of the exact text. The measureText is the length of the text, including the extra gap on the left and right.

2. If there are spaces between the text, it is measured in measureText but not including in the length of the TextBounds, although the coordinate get shifted.

3. The text could be tilted (Skew) left. In this case, the bounding box left side would exceed outside the measurement of the measureText, and the overall length of the text bound would be bigger than measureText

4. The text could be tilted (Skew) right. In this case, the bounding box right side would exceed outside the measurement of the measureText, and the overall length of the text bound would be bigger than measureText

I had the same problem, it was a missing manifest.json file, if not found the browser decide with orientation is best fit, if you don't specify the file or use a wrong path.

I fixed just calling the manifest.json correctly on html headers.

My html headers:

<meta name="application-name" content="App Name">
<meta name="mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<link rel="manifest" href="manifest.json">
<meta name="msapplication-starturl" content="/">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="theme-color" content="#">
<meta name="msapplication-TileColor" content="#">
<meta name="msapplication-config" content="browserconfig.xml">
<link rel="icon" type="image/png" sizes="192x192" href="android-chrome-192x192.png">
<link rel="apple-touch-icon" sizes="180x180" href="apple-touch-icon.png">
<link rel="mask-icon" href="safari-pinned-tab.svg" color="#ffffff">
<link rel="shortcut icon" href="favicon.ico">

And the manifest.json file content:

{
  "display": "standalone",
  "orientation": "portrait",
  "start_url": "/",
  "theme_color": "#000000",
  "background_color": "#ffffff",
  "icons": [
  {
    "src": "android-chrome-192x192.png",
    "sizes": "192x192",
    "type": "image/png"
  }
}

To generate your favicons and icons use this webtool: https://realfavicongenerator.net/

To generate your manifest file use: https://tomitm.github.io/appmanifest/

My PWA Works great, hope it helps!

Use the constructor that takes a File and a boolean

FileOutputStream(File file, boolean append) 

and set the boolean to true. That way, the data you write will be appended to the end of the file, rather than overwriting what was already there.

Semantically what you are trying is invalid html, table element cannot have a div element as a direct child. What you can do is, get your div element inside a td element and than try to hide it

I wrote a library to simplify this process.

dataBase = new DataBase.Builder(context, "myDb").
//        setAssetsPath(). // default "databases"
//        setDatabaseErrorHandler().
//        setCursorFactory().
//        setUpgradeCallback()
//        setVersion(). // default 1
build();

It will create a dataBase from assets/databases/myDb.db file. In addition you will get all those functionality:

• Load database from file
• Synchronized access to the database
• Using sqlite-android by requery, Android specific distribution of the latest versions of SQLite.

Clone it from github.

After working through a couple of issues in dependent projects, like the accepted answer says, I was still getting this error. I could see the file did indeed exist at the location it was looking in, but for some reason Visual Studio would not recognize it. Rebuilding the solution would clear all dependent projects and then would not rebuild them, but building individually would generate the .dll's. I used msbuild <project-name>.csproj in the developer PowerShell terminal in Visual Studio, meaning to get some more detailed debugging information--but it built for me instead! Try using msbuild against persistant build errors; you can use the --verbosity: option to get more output, as outlined in the docs.

First of all set the TextBox's MaxLength to 2 that will limit the amount of text entry in your TextBox. Then you can try something like this using the KeyPress Event. Since you are using a 2 digit maximum (10) you will need to use a Key such as Enter to initiate the check.

Private Sub TextBox1_KeyPress(sender As System.Object, e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
    Dim tb As TextBox = CType(sender, TextBox)
    If Not IsNumeric(e.KeyChar) Then    'Check if Numeric
        If Char.IsControl(e.KeyChar) Then  'If not Numeric Check if a Control
            If e.KeyChar = ChrW(Keys.Enter) Then
                If Val(tb.Text) > 10 Then  'Check Bounds
                    tb.Text = ""
                    ShowPassFail(False)
                Else
                    ShowPassFail(True)
                End If
                e.Handled = True
            End If
            Exit Sub
        End If
        e.Handled = True
        ShowPassFail(False)
    End If
End Sub

Private Sub ShowPassFail(pass As Boolean)
    If pass Then
        MessageBox.Show("Thank you, your rating was " & TextBox1.Text)
    Else
        MessageBox.Show("Please Enter a Number from 1 to 10")
    End If
    TextBox1.Clear()
    TextBox1.Focus()
End Sub

I think this might help.

SELECT datetime(strftime('%s','now'), 'unixepoch', 'localtime');

You could apply the function isdigit() on every character in the String. Or you could use regular expressions.

Also I found How do I find one number in a string in Python? with very suitable ways to return numbers. The solution below is from the answer in that question.

number = re.search(r'\d+', yourString).group()

Alternatively:

number = filter(str.isdigit, yourString)

For further Information take a look at the regex docu: http://docs.python.org/2/library/re.html

Edit: This Returns the actual numbers, not a boolean value, so the answers above are more correct for your case

The first method will return the first digit and subsequent consecutive digits. Thus 1.56 will be returned as 1. 10,000 will be returned as 10. 0207-100-1000 will be returned as 0207.

The second method does not work.

To extract all digits, dots and commas, and not lose non-consecutive digits, use:

re.sub('[^\d.,]' , '', yourString)

Well, I spent a lot of time on this issue. To get an answer working with Chrome AND IE, I had to change my approach. The idea is to avoid removing the selected option (because cannot remove it properly with IE). => this implies to select option not by adding or setting the selected attribute on the option, but to choose an option at the "select" level using the selectedIndex prop.

Before :

$('#myselect option:contains("value")').attr('selected','selected');
$('#myselect option:contains("value")').removeAttr('selected'); => KO with IE

After :

$('#myselect').prop('selectedIndex', $('#myselect option:contains("value")').index());
$('#myselect').prop('selectedIndex','-1'); => OK with all browsers

Hope it will help

I found some slides about this issue.

http://de.slideshare.net/DroidConTLV/android-crash-analysis-and-the-dalvik-garbage-collector-tools-and-tips

In this slides the author tells that it seems to be a problem with GC, if there are a lot of objects or huge objects in heap. The slide also include a reference to a sample app and a python script to analyze this issue.

https://github.com/oba2cat3/GCTest

https://github.com/oba2cat3/logcat2memorygraph

Furthermore I found a hint in comment #3 on this side: https://code.google.com/p/android/issues/detail?id=53418#c3

I think it's perfectly explained in item 25 of Scott Meyers' Effective Modern C++. Here's an excerpt:

The part of the Standard blessing the RVO goes on to say that if the conditions for the RVO are met, but compilers choose not to perform copy elision, the object being returned must be treated as an rvalue. In effect, the Standard requires that when the RVO is permitted, either copy elision takes place or std::move is implicitly applied to local objects being returned.

Here, RVO refers to return value optimization, and if the conditions for the RVO are met means returning the local object declared inside the function that you would expect to do the RVO, which is also nicely explained in item 25 of his book by referring to the standard (here the local object includes the temporary objects created by the return statement). The biggest take away from the excerpt is either copy elision takes place or std::move is implicitly applied to local objects being returned. Scott mentions in item 25 that std::move is implicitly applied when the compiler choose not to elide the copy and the programmer should not explicitly do so.

In your case, the code is clearly a candidate for RVO as it returns the local object p and the type of p is the same as the return type, which results in copy elision. And if the compiler chooses not to elide the copy, for whatever reason, std::move would've kicked in to line 1.

Have you tried the very simple solution of just adding the following attribute to your read only text field:

onkeydown="return false;"

This will keep the browser from going back in history when the Backspace key is pressed in a read only text field. Maybe I am missing your true intent, but seems like this would be the simplest solution to your issue.

You can use "ELSE IF" using conditional operator in expression language as below:

 <p:outputLabel value="#{transaction.status.equals('PNDNG')?'Pending':
                                     transaction.status.equals('RJCTD')?'Rejected':
                                     transaction.status.equals('CNFRMD')?'Confirmed':
                                     transaction.status.equals('PSTD')?'Posted':''}"/>

Tomcat also creates a ROOT directory at the same level as work/. ROOT/ also caches the old stuff. delete ROOT along with Catalina directory in work.

I found a mildly recursive way to do this that works for my purposes. I have an instance variable BOOL that I use to block the normal popping animation and substitute my own non-animated pop message. The variable is initially set to NO. When the back button is tapped, the delegate method sets it to YES and sends a new non-animated pop message to the nav bar, thereby calling the same delegate method again, this time with the variable set to YES. With the variable is set to YES, the delegate method sets it to NO and returns YES to allow the non-animated pop occur. After the second delegate call returns, we end up back in the first one, where NO is returned, blocking the original animated pop! It's actually not as messy as it sounds. My shouldPopItem method looks like this:

- (BOOL)navigationBar:(UINavigationBar *)navigationBar shouldPopItem:(UINavigationItem *)item 
{
    if ([[navigationBar items] indexOfObject:item] == 1) 
    {
        [expandedStack restack];    
    }

    if (!progPop) 
    {
        progPop = YES;
        [navBar popNavigationItemAnimated:NO];
        return NO;
    }
    else 
    {
        progPop = NO;
        return YES;
    }
}

Works for me.

The minimum ranges you can rely on are:

• short int and int: -32,767 to 32,767
• unsigned short int and unsigned int: 0 to 65,535
• long int: -2,147,483,647 to 2,147,483,647
• unsigned long int: 0 to 4,294,967,295

This means that no, long int cannot be relied upon to store any 10 digit number. However, a larger type long long int was introduced to C in C99 and C++ in C++11 (this type is also often supported as an extension by compilers built for older standards that did not include it). The minimum range for this type, if your compiler supports it, is:

• long long int: -9,223,372,036,854,775,807 to 9,223,372,036,854,775,807
• unsigned long long int: 0 to 18,446,744,073,709,551,615

So that type will be big enough (again, if you have it available).

A note for those who believe I've made a mistake with these lower bounds - I haven't. The C requirements for the ranges are written to allow for ones' complement or sign-magnitude integer representations, where the lowest representable value and the highest representable value differ only in sign. It is also allowed to have a two's complement representation where the value with sign bit 1 and all value bits 0 is a trap representation rather than a legal value. In other words, int is not required to be able to represent the value -32,768.

dangerouslySetInnerHTML is React’s replacement for using innerHTML in the browser DOM. In general, setting HTML from code is risky because it’s easy to inadvertently expose your users to a cross-site scripting (XSS) attack.

It is better/safer to sanitise your raw HTML (using e.g., DOMPurify) before injecting it into the DOM via dangerouslySetInnerHTML.

DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks.

Example:

import React from 'react'
import createDOMPurify from 'dompurify'
import { JSDOM } from 'jsdom'

const window = (new JSDOM('')).window
const DOMPurify = createDOMPurify(window)

const rawHTML = `
<div class="dropdown">
  <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-expanded="true">
    Dropdown
    <span class="caret"></span>
  </button>
  <ul class="dropdown-menu" role="menu" aria-labelledby="dropdownMenu1">
    <li role="presentation"><a role="menuitem" tabindex="-1" href="#">Action</a></li>
    <li role="presentation"><a role="menuitem" tabindex="-1" href="#">Another action</a></li>
    <li role="presentation"><a role="menuitem" tabindex="-1" href="#">Something else here</a></li>
    <li role="presentation"><a role="menuitem" tabindex="-1" href="#">Separated link</a></li>
  </ul>
</div>
`

const YourComponent = () => (
  <div>
    { <div dangerouslySetInnerHTML={{ __html: DOMPurify.sanitize(rawHTML) }} /> }
  </div>
)

export default YourComponent

You can structurize your batch file by using goto

IF EXIST somefile.txt goto somefileexists
goto exit

:somefileexists
IF EXIST someotherfile.txt SET var=...

:exit

java -classpath Predit.jar your.package.name.MainClass

An XSD file is an XML Schema Definition and it is used to provide a standard method of checking that a given XML document conforms to what you expect.

Yes, but you'll need to run it at the database level.

Right-click the database in SSMS, select "Tasks", "Generate Scripts...". As you work through, you'll get to a "Scripting Options" section. Click on "Advanced", and in the list that pops up, where it says "Types of data to script", you've got the option to select Data and/or Schema.

In Visual C++ the project options under, Output Files I believe has an option for outputing the ASM listing with source code. So you will see the C/C++ source code and the resulting ASM all in the same file.

public static string toHTML_Table(DataTable dt)
{
    if (dt.Rows.Count == 0) return ""; // enter code here

    StringBuilder builder = new StringBuilder();
    builder.Append("<html>");
    builder.Append("<head>");
    builder.Append("<title>");
    builder.Append("Page-");
    builder.Append(Guid.NewGuid());
    builder.Append("</title>");
    builder.Append("</head>");
    builder.Append("<body>");
    builder.Append("<table border='1px' cellpadding='5' cellspacing='0' ");
    builder.Append("style='border: solid 1px Silver; font-size: x-small;'>");
    builder.Append("<tr align='left' valign='top'>");
    foreach (DataColumn c in dt.Columns)
    {
        builder.Append("<td align='left' valign='top'><b>");
        builder.Append(c.ColumnName);
        builder.Append("</b></td>");
    }
    builder.Append("</tr>");
    foreach (DataRow r in dt.Rows)
    {
        builder.Append("<tr align='left' valign='top'>");
        foreach (DataColumn c in dt.Columns)
        {
            builder.Append("<td align='left' valign='top'>");
            builder.Append(r[c.ColumnName]);
            builder.Append("</td>");
        }
        builder.Append("</tr>");
    }
    builder.Append("</table>");
    builder.Append("</body>");
    builder.Append("</html>");

    return builder.ToString();
}

If you take a look at @types/node-fetch you will see the body definition

export class Body {
    bodyUsed: boolean;
    body: NodeJS.ReadableStream;
    json(): Promise<any>;
    json<T>(): Promise<T>;
    text(): Promise<string>;
    buffer(): Promise<Buffer>;
}

That means that you could use generics in order to achieve what you want. I didn't test this code, but it would looks something like this:

import { Actor } from './models/actor';

fetch(`http://swapi.co/api/people/1/`)
      .then(res => res.json<Actor>())
      .then(res => {
          let b:Actor = res;
      });

I use Netbeans 7. Choose menu File \ New project, choose Import from existing folder.

You don't need the jsp:useBean to set the model if you already have a controller which prepared the model.

Just access it plain by EL:

<p>${Questions.questionPaperID}</p>
<p>${Questions.question}</p>

or by JSTL <c:out> tag if you'd like to HTML-escape the values or when you're still working on legacy Servlet 2.3 containers or older when EL wasn't supported in template text yet:

<p><c:out value="${Questions.questionPaperID}" /></p>
<p><c:out value="${Questions.question}" /></p>

See also:

• Our Servlets wiki page

Unrelated to the problem, the normal practice is by the way to start attribute name with a lowercase, like you do with normal variable names.

session.setAttribute("questions", questions);

and alter EL accordingly to use ${questions}.

Also note that you don't have any JSTL tag in your code. It's all plain JSP.

This is not perfect, but it works.

<asp:LinkButton id="lbnkVidTtile1" runat="Server" 
    CssClass="bodytext" Text='<%# Eval("newvideotitle") %>'
    OnClientClick="return PostToNewWindow();"  />

<script type="text/javascript">
function PostToNewWindow()
{
    originalTarget = document.forms[0].target;
    document.forms[0].target='_blank';
    window.setTimeout("document.forms[0].target=originalTarget;",300);
    return true;
}
</script>

Short Answer - E

Answer isE given that the rest are plainly wrong, but ..

Long Answer - It isn't that simple; it depends ...

Simple fact is, the garbage collector may never decide to garbage collection every single object that is a viable candidate for collection, not unless memory pressure is extremely high. And then there is the fact that Java is just as susceptible to memory leaks as any other language, they are just harder to cause, and thus harder to find when you do cause them!

The following article has many good details on how memory management works and doesn't work and what gets take up by what. How generational Garbage Collectors work and Thanks for the Memory ( Understanding How the JVM uses Native Memory on Windows and Linux )

If you read the links, I think you will get the idea that memory management in Java isn't as simple as a multiple choice question.

^{Answer to an old question as no answer here seem to address the 'warning' problem (explanation follows)}

Basically, in this case of checking if a key exists in an array, isset

• tells if the expression (array) is defined, and the key is set
• no warning or error if the var is not defined, not an array ...
• but returns false if the value for that key is null

and array_key_exists

• tells if a key exists in an array as the name implies
• but gives a warning if the array parameter is not an array

So how do we check if a key exists which value may be null in a variable

• that may or may not be an array
• (or similarly is a multidimensional array for which the key check happens at dim 2 and dim 1 value may not be an array for the 1^st dim (etc...))

without getting a warning, without missing the existing key when its value is null (what were the PHP devs thinking would also be an interesting question, but certainly not relevant on SO). And of course we don't want to use @

isset($var[$key]);            // silent but misses null values
array_key_exists($key, $var); // works but warning if $var not defined/array

It seems is_array should be involved in the equation, but it gives a warning if $var is not defined, so that could be a solution:

if (isset($var[$key]) || 
    isset($var) && is_array($var) && array_key_exists($key, $var)) ...

which is likely to be faster if the tests are mainly on non-null values. Otherwise for an array with mostly null values

if (isset($var) && is_array($var) && array_key_exists($key, $var)) ...

will do the work.

You can install this plugin in Firefox: https://addons.mozilla.org/en-US/firefox/addon/cliget/?src=cb-dl-toprated Start downloading what you want and click on the plugin. It gives you the whole command either for wget or curl to download the file on the serer. Very easy!

try this:

SELECT ReportId, Email = 
    STUFF((SELECT ', ' + Email
           FROM your_table b 
           WHERE b.ReportId = a.ReportId 
          FOR XML PATH('')), 1, 2, '')
FROM your_table a
GROUP BY ReportId

SQL fiddle demo

try this

(isset ($_SERVER['HTTP_CLIENT_IP']) ? 
    $_SERVER['HTTP_CLIENT_IP'] : 
    (isset ($_SERVER['HTTP_X_FORWARDED_FOR']) ? 
        $_SERVER['HTTP_X_FORWARDED_FOR'] : 
        $_SERVER['REMOTE_ADDR']
    )
)

You can use the dplyr package to easily remove those particular rows.

library(dplyr)
df <- filter(df, C != "Foo")

just like in C and C++, the boolean or operator is ||

if (ActionsLogWriter.Close || ErrorDumpWriter.Close == true)
{
    // Do stuff here
}

The return exits the current function, but the iterations keeps on, so you get the "next" item that skips the if and alerts the 4...

If you need to stop the looping, you should just use a plain for loop like so:

$('button').click(function () {
   var arr = [1, 2, 3, 4, 5];
   for(var i = 0; i < arr.length; i++) {
     var n = arr[i]; 
     if (n == 3) {
         break;
      }
      alert(n);
   })
})

You can read more about js break & continue here: http://www.w3schools.com/js/js_break.asp

You're supposed to use setImageResource instead of setBackgroundResource.

You should open text files using rU so newlines are properly transformed, see http://docs.python.org/library/functions.html#open. This way there's no need to check for \r\n.

iContribute: It's never too late for a right answer.

var form = $("form#myForm");
if($('form#myForm > :input[required]:visible').val() != ""){
  form.submit();
}else{
  console.log("Required field missing.");
}

This way the basic HTML5 validation for 'required' fields takes place without interfering with the standard submit using the form's 'name' values.

Solved the issue by adding .conf extension to site configuration files.

Apache a2ensite results in:

Error! Site Does Not Exist

Problem; If you found the error while trying to enable a site using:

sudo a2ensite example.com

but it returns:

Error: example.com does not exist

a2ensite is simply a Perl script that only works with filenames ending .conf

Therefore, I have to rename my setting file for example.com to example.com.conf as might be achieved as follows:

mv /etc/apache2/sites-available/example.com /etc/apache2/sites-available/example.com.conf

Success

I'm quite ashamed that there are so many incorrect or undisclosed partial applicability.

The easiest way to do this is through Chrome or Opera (my examples will use Chrome) using the Console. Enter the following code into the console (generally in 1 line):

var l = document.getElementById('testLink');
for(var i=0; i<5; i++){
  l.click();
}

This will generate the required result

Read-Host is one example of a cmdlet that -Confirm does not have an effect on.-Confirm is one of PowerShell's Common Parameters specifically a Risk-Mitigation Parameter which is used when a cmdlet is about to make a change to the system that is outside of the Windows PowerShell environment. Many but not all cmdlets support the -Confirm risk mitigation parameter.

As an alternative the following would be an example of using the Read-Host cmdlet and a regular expression test to get confirmation from a user:

$reply = Read-Host -Prompt "Continue?[y/n]"
if ( $reply -match "[yY]" ) { 
    # Highway to the danger zone 
}

The Remove-Variable cmdlet is one example that illustrates the usage of the -confirm switch.

Remove-Variable 'reply' -Confirm

Additional References: CommonParameters, Write-Host, Read-Host, Comparison Operators, Regular Expressions, Remove-Variable

yes, it is possible we can pass structure and return structure as well. You were right but you actually did not pass the data type which should be like this struct MyObj b = a.

Actually I also came to know when I was trying to find out a better solution to return more than one values for function without using pointer or global variable.

Now below is the example for the same, which calculate the deviation of a student marks about average.

#include<stdio.h>
struct marks{
    int maths;
    int physics;
    int chem;
};

struct marks deviation(struct marks student1 , struct marks student2 );

int main(){

    struct marks student;
    student.maths= 87;
    student.chem = 67;
    student.physics=96;

    struct marks avg;
    avg.maths= 55;
    avg.chem = 45;
    avg.physics=34;
    //struct marks dev;
    struct marks dev= deviation(student, avg );
    printf("%d %d %d" ,dev.maths,dev.chem,dev.physics);

    return 0;
 }

struct marks deviation(struct marks student , struct marks student2 ){
    struct marks dev;

    dev.maths = student.maths-student2.maths;
    dev.chem = student.chem-student2.chem;
    dev.physics = student.physics-student2.physics; 

    return dev;
}

Used Webview in Swift Language

let url = URL(string: "http://example.com")
   webview.loadRequest(URLRequest(url: url!))

Here is how you can do it through JavaScript:

1. Use the canvg JavaScript library to render the SVG image using Canvas: https://github.com/gabelerner/canvg
2. Capture a data URI encoded as a JPG (or PNG) from the Canvas, according to these instructions: Capture HTML Canvas as gif/jpg/png/pdf?

Try to resolve the conflict using

svn resolve --accept=working PATH

Try This:

//Check
document.getElementById('checkbox').setAttribute('checked', 'checked');

//UnCheck
document.getElementById('chk').removeAttribute('checked');

When you call document.write after a page has loaded it will eliminate all content and replace it with the parameter you provide. Instead use DOM methods to add content, for example:

var OpenWindow = window.open('mypage.html','_blank','width=335,height=330,resizable=1');
var text = document.createTextNode('hi');
OpenWindow.document.body.appendChild(text);

If you want to use jQuery you get some better APIs to deal with. For example:

var OpenWindow = window.open('mypage.html','_blank','width=335,height=330,resizable=1');
$(OpenWindow.document.body).append('<p>hi</p>');

If you need the code to run after the new window's DOM is ready try:

var OpenWindow = window.open('mypage.html','_blank','width=335,height=330,resizable=1');
$(OpenWindow.document.body).ready(function() {
    $(OpenWindow.document.body).append('<p>hi</p>');
});

It depends on what you need to do. You can use replace since you want to replace the value:

select replace(email, '.com', '.org')
from yourtable

Then to UPDATE your table with the new ending, then you would use:

update yourtable
set email = replace(email, '.com', '.org')

You can also expand on this by checking the last 4 characters of the email value:

update yourtable
set email = replace(email, '.com', '.org')
where right(email, 4) = '.com'

However, the issue with replace() is that .com can be will in other locations in the email not just the last one. So you might want to use substring() the following way:

update yourtable
set email = substring(email, 1, len(email) -4)+'.org'
where right(email, 4) = '.com';

See SQL Fiddle with Demo

Using substring() will return the start of the email value, without the final .com and then you concatenate the .org to the end. This prevents the replacement of .com elsewhere in the string.

Alternatively you could use stuff(), which allows you to do both deleting and inserting at the same time:

update yourtable
set email = stuff(email, len(email) - 3, 4, '.org')
where right(email, 4) = '.com';

This will delete 4 characters at the position of the third character before the last one (which is the starting position of the final .com) and insert .org instead.

See SQL Fiddle with Demo for this method as well.

http://jsfiddle.net/MBLZx/

Here is the code

 .showme{ _x000D_
   display: none;_x000D_
 }_x000D_
 .showhim:hover .showme{_x000D_
   display : block;_x000D_
 }_x000D_
 .showhim:hover .ok{_x000D_
   display : none;_x000D_
 }

 <div class="showhim">_x000D_
     HOVER ME_x000D_
     <div class="showme">hai</div>_x000D_
     <div class="ok">ok</div>_x000D_
</div>_x000D_
_x000D_
   

Tip #2

Can't you use the classical 2> redirection operator.

(Get-PSSessionConfiguration -Name "MyShellUri" -ErrorAction SilentlyContinue) 2> $NULL
if(!$?){
   'foo'
}

I don't like errors so I avoid them at all costs.

If its on a corporate machine - make sure that the caches aren't stored on the network

Git 1.8.2 features a new option, --remote, that will enable exactly this behavior. Running

git submodule update --remote --merge

will fetch the latest changes from upstream in each submodule, merge them in, and check out the latest revision of the submodule. As the documentation puts it:

--remote

This option is only valid for the update command. Instead of using the superproject’s recorded SHA-1 to update the submodule, use the status of the submodule’s remote-tracking branch.

This is equivalent to running git pull in each submodule, which is generally exactly what you want.

Why use jQuery for this?

str = "123-4"; 
alert(str.substring(0,str.length - 1));

Of course if you must:

Substr w/ jQuery:

//example test element
 $(document.createElement('div'))
    .addClass('test')
    .text('123-4')
    .appendTo('body');

//using substring with the jQuery function html
alert($('.test').html().substring(0,$('.test').html().length - 1));

In a UIView extension:

func addBlurredBackground(style: UIBlurEffect.Style) {
    let blurEffect = UIBlurEffect(style: style)
    let blurView = UIVisualEffectView(effect: blurEffect)
    blurView.frame = self.frame
    blurView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
    self.addSubview(blurView)
    self.sendSubviewToBack(blurView)
}

print_r() can print out value but also if second flag parameter is passed and is TRUE - it will return printed result as string and nothing send to standard output. About var_dump. If XDebug debugger is installed so output results will be formatted in much more readable and understandable way.

If you are using bootstrap-datepicker you may use this style:

$('#datepicker').datepicker('setStartDate', "01-01-1900");

You can simply do :

<%= Html.TextBoxFor(x => x.Age, new { @Value = "0"}) %>

or better, this will switch to default value '0' if the model is null, for example if you have the same view for both editing and creating :

@Html.TextBoxFor(x => x.Age, new { @Value = (Model==null) ? "0" : Model.Age.ToString() })

I am doing the below for page redirection(from login to home page). I have to pass the user object also to the home page. so, i am using windows localstorage.

    $http({
        url:'/login/user',
        method : 'POST',
        headers: {
            'Content-Type': 'application/json'
          },
        data: userData
    }).success(function(loginDetails){
        $scope.updLoginDetails = loginDetails;
        if($scope.updLoginDetails.successful == true)
            {
                loginDetails.custId = $scope.updLoginDetails.customerDetails.cust_ID;
                loginDetails.userName = $scope.updLoginDetails.customerDetails.cust_NM;
                window.localStorage.setItem("loginDetails", JSON.stringify(loginDetails));
                $window.location='/login/homepage';
            }
        else
        alert('No access available.');

    }).error(function(err,status){
        alert('No access available.');      
    });

And it worked for me.

First of all, you would have to allocate memory:

char * S = new char[R.length() + 1];

then you can use strcpy with S and R.c_str():

std::strcpy(S,R.c_str());

You can also use R.c_str() if the string doesn't get changed or the c string is only used once. However, if S is going to be modified, you should copy the string, as writing to R.c_str() results in undefined behavior.

Note: Instead of strcpy you can also use str::copy.

You could do it like this:

String s = "1234567890";
System.out.println(java.util.Arrays.toString(s.split("(?<=\\G...)")));

which produces:

[123, 456, 789, 0]

The regex (?<=\G...) matches an empty string that has the last match (\G) followed by three characters (...) before it ((?<= ))

I don't believe AJAX can handle file uploads but this can be achieved with libraries that leverage flash. Another advantage of the flash implementation is the ability to do multiple files at once (like gmail).

SWFUpload is a good start : http://www.swfupload.org/documentation

jQuery and some of the other libraries have plugins that leverage SWFUpload. On my last project we used SWFUpload and Java without a problem.

Also helpful and worth looking into is Apache's FileUpload : http://commons.apache.org/fileupload/index.html

To answer the original question:

To change the XAMPP Apache server port here the procedure :

1. Choose a free port number

The default port used by Apache is 80.

Take a look to all your used ports with Netstat (integrated to XAMPP Control Panel).

Then you can see all used ports and here we see that the 80port is already used by System.

Choose a free port number (8012, for this exemple).

2. Edit the file "httpd.conf"

This file should be found in C:\xampp\apache\conf on Windows or in bin/apache for Linux.:

Listen 80
ServerName localhost:80

Replace them by:

Listen 8012
ServerName localhost:8012

Save the file.

Access to : http://localhost:8012 for check if it's work.

If not, you must to edit the http-ssl.conf file as explain in step 3 below. ?

3. Edit the file "http-ssl.conf"

This file should be found in C:\xampp\apache\conf\extra on Windows or see this link for Linux.

Locate the following lines:

Listen 443
<VirtualHost _default_:443>
ServerName localhost:443

Replace them by with a other port number (8013 for this example) :

Listen 8013
<VirtualHost _default_:8013>
ServerName localhost:8013

Save the file.

Restart the Apache Server.

Access to : http://localhost:8012 for check if it's work.

4. Configure XAMPP Apache server settings

If your want to access localhost without specify the port number in the URL
http://localhost instead of http://localhost:8012.

• Open Xampp Control Panel
• Go to Config ? Service and Port Settings ? Apache
• Replace the Main Port and SSL Port values ??with those chosen (e.g. 8012 and 8013).
• Save Service settings
• Save Configuration of Control Panel
• Restart the Apache Server It should work now.

4.1. Web browser configuration

If this configuration isn't hiding port number in URL it's because your web browser is not configured for. See : Tools ? Options ? General ? Connection Settings... will allow you to choose different ports or change proxy settings.

4.2. For the rare cases of ultimate bad luck

If step 4 and Web browser configuration are not working for you the only way to do this is to change back to 80, or to install a listener on port 80 (like a proxy) that redirects all your traffic to port 8012.

To answer your problem :

If you still have this message in Control Panel Console :

Apache Started [Port 80]

• Find location of xampp-control.exe file (probably in C:\xampp)
• Create a file XAMPP.INI in that directory (so XAMPP.ini and xampp-control.exe are in the same directory)

Put following lines in the XAMPP.INI file:

[PORTS]
apache = 8012

Now , you will always get:

Apache started [Port 8012]

Please note that, this is for display purpose only. It has no relation with your httpd.conf.

on anchor tag use href and not onclick

<a href="#target1">asdf<a>

And div:

<div id="target1">some content</div>

What I suggest you do is add a META-INF directory with a MANIFEST.MF file in .war file.

Please note that according to servlet spec, it must be a .war file and not .war directory for the META-INF/MANIFEST.MF to be read by container.

Edit the MANIFEST.MF Class-Path property to C:\app_config\java_app:

See Using JAR Files: The Basics (Understanding the Manifest)

Enjoy.

Just a note, if you ever see this:

a = x ? : y;

It's a GNU extension to the standard (see https://gcc.gnu.org/onlinedocs/gcc/Conditionals.html#Conditionals).

It is the same as

a = x ? x : y;

Try this:

[https://lodash.com/docs/4.17.4#clone][1]

var objects = [{ 'a': 1 }, { 'b': 2 }];

var shallow = _.clone(objects);
console.log(shallow[0] === objects[0]);
// => true

#modal {
    display: flex;
    justify-content: space-around;
    align-items: center;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}

inside it can be any element with diffenet width, height or without. all are centered.

The query returned from the profiler or query object will have placeholders if you're using those.

To see the exact query run by mysql you can use the general query log.

This will list all the queries which have run since it was enabled. Don't forget to disable this once you've collected your sample. On an active server; this log can fill up very fast.

From a mysql terminal or query tool like MySQL Workbench run:

SET GLOBAL log_output = 'table';
SET GLOBAL general_log = 1;

then run your query. The results are stored in the "mysql.general_log" table.

SELECT * FROM mysql.general_log

To disable the query log:

SET GLOBAL general_log = 0;

To verify it's turned off:

SHOW VARIABLES LIKE 'general%';

This helped me locate a query where the placeholder wasn't being replaced by zend db. Couldn't see that with the profiler.

Before you know about the attributes of @property, you should know what is the use of @property.

• @property offers a way to define the information that a class is intended to encapsulate. If you declare an object/variable using @property, then that object/variable will be accessible to other classes importing its class.

• If you declare an object using @property in the header file, then you have to synthesize it using @synthesize in the implementation file. This makes the object KVC compliant. By default, compiler will synthesize accessor methods for this object.

• accessor methods are : setter and getter.

Example: .h

@interface XYZClass : NSObject
@property (nonatomic, retain) NSString *name;
@end

.m

@implementation XYZClass
@synthesize name;
@end

Now the compiler will synthesize accessor methods for name.

XYZClass *obj=[[XYZClass alloc]init];
NSString *name1=[obj name]; // get 'name'
[obj setName:@"liza"]; // first letter of 'name' becomes capital in setter method

• List of attributes of @property

  atomic, nonatomic, retain, copy, readonly, readwrite, assign, strong, getter=method, setter=method, unsafe_unretained

• atomic is the default behavior. If an object is declared as atomic then it becomes thread-safe. Thread-safe means, at a time only one thread of a particular instance of that class can have the control over that object.

If the thread is performing getter method then other thread cannot perform setter method on that object. It is slow.

@property NSString *name; //by default atomic`
@property (atomic)NSString *name; // explicitly declared atomic`

• nonatomic is not thread-safe. You can use the nonatomic property attribute to specify that synthesized accessors simply set or return a value directly, with no guarantees about what happens if that same value is accessed simultaneously from different threads.

For this reason, it’s faster to access a nonatomic property than an atomic one.

@property (nonatomic)NSString *name;   

• retain is required when the attribute is a pointer to an object.

The setter method will increase retain count of the object, so that it will occupy memory in autorelease pool.

@property (retain)NSString *name;

• copy If you use copy, you can't use retain. Using copy instance of the class will contain its own copy.

Even if a mutable string is set and subsequently changed, the instance captures whatever value it has at the time it is set. No setter and getter methods will be synthesized.

@property (copy) NSString *name;

now,

NSMutableString *nameString = [NSMutableString stringWithString:@"Liza"];    
xyzObj.name = nameString;    
[nameString appendString:@"Pizza"]; 

name will remain unaffected.

• readonly If you don't want to allow the property to be changed via setter method, you can declare the property readonly.

Compiler will generate a getter, but not a setter.

@property (readonly) NSString *name;

• readwrite is the default behavior. You don't need to specify readwrite attribute explicitly.

It is opposite of readonly.

@property (readwrite) NSString *name;

• assign will generate a setter which assigns the value to the instance variable directly, rather than copying or retaining it. This is best for primitive types like NSInteger and CGFloat, or objects you don't directly own, such as delegates.

Keep in mind retain and assign are basically interchangeable when garbage collection is enabled.

@property (assign) NSInteger year;

• strong is a replacement for retain.

It comes with ARC.

@property (nonatomic, strong) AVPlayer *player; 

• getter=method If you want to use a different name for a getter method, it’s possible to specify a custom name by adding attributes to the property.

In the case of Boolean properties (properties that have a YES or NO value), it’s customary for the getter method to start with the word “is”

@property (getter=isFinished) BOOL finished;

• setter=method If you want to use a different name for a setter method, it’s possible to specify a custom name by adding attributes to the property.

The method should end with a colon.

@property(setter = boolBool:) BOOL finished;

• unsafe_unretained There are a few classes in Cocoa and Cocoa Touch that don’t yet support weak references, which means you can’t declare a weak property or weak local variable to keep track of them. These classes include NSTextView, NSFont and NSColorSpace,etc. If you need to use a weak reference to one of these classes, you must use an unsafe reference.

An unsafe reference is similar to a weak reference in that it doesn’t keep its related object alive, but it won’t be set to nil if the destination object is deallocated.

@property (unsafe_unretained) NSObject *unsafeProperty;

If you need to specify multiple attributes, simply include them as a comma-separated list, like this:

@property (readonly, getter=isFinished) BOOL finished;

Use this:

resourcesloader.class.getClassLoader().getResource("/path/to/file").**getPath();**

If it's a DNS problem, you could try:

• ipconfig /flushdns
• ipconfig /registerdns

If this doesn't fix it, you could try editing the hosts file located here:

C:\Windows\System32\drivers\etc\hosts

And ensure that this line (and no other line referencing localhost) is in there:

127.0.0.1 localhost

I know this is pretty late but I want to share my solution.

public static void main(String[] args) {
    String whatToPrint = "aword";
    int strLen = whatToPrint.length(); //var used for auto adjusting the padding
    int floors = 8;
    for (int f = 1, h = strLen * floors; f < floors * 2; f += 2, h -= strLen) {
        for (int k = 1; k < h; k++) {
                System.out.print(" ");//padding
            }
        for (int g = 0; g < f; g++) {
            System.out.print(whatToPrint);
        }
        System.out.println();
    }
}

The spaces on the left of the triangle will automatically adjust itself depending on what character or what word you want to print.

if whatToPrint = "x" and floors = 3 it will print

x xxx xxxxx If there's no automatic adjustment of the spaces, it will look like this (whatToPrint = "xxx" same floor count)

xxx xxxxxxxxx xxxxxxxxxxxxxxx

So I made add a simple code so that it will not happen.

For left half triangle, just change strLen * floors to strLen * (floors * 2) and the f +=2 to f++.

For right half triangle, just remove this loop for (int k = 1; k < h; k++) or change h to 0, if you choose to remove it, don't delete the System.out.print(" ");.

On Windows, start up Command Prompt (cmd.exe) or PowerShell (powershell.exe). To do this quickly, open a Run Command window by pressing Windows Key + R. In the Run Command window, type "cmd.exe" to launch Command Prompt; However, to start PowerShell instead, then type "powershell". If you are connecting your Android device to your computer using a USB cable, then you will need to check whether your device is communicating with adb by entering the command below:

# adb devices -l  

Next, pull (copy) the file from your Android device over to Windows. This can be accomplished by entering the following command:

# adb pull /sdcard/log.txt %HOME%\Desktop\log.txt  

Optionally, you may enter this command instead:

# adb pull /sdcard/log.txt C:\Users\admin\Desktop\log.txt 

I am trying different ways to create a real constant in Python and perhaps I found the pretty solution.

Example:

Create container for constants

>>> DAYS = Constants(
...     MON=0,
...     TUE=1,
...     WED=2,
...     THU=3,
...     FRI=4,
...     SAT=5,
...     SUN=6
... )   

Get value from container

>>> DAYS.MON
0
>>> DAYS['MON']
0  

Represent with pure python data structures

>>> list(DAYS)
['WED', 'SUN', 'FRI', 'THU', 'MON', 'TUE', 'SAT']
>>> dict(DAYS)
{'WED': 2, 'SUN': 6, 'FRI': 4, 'THU': 3, 'MON': 0, 'TUE': 1, 'SAT': 5}

All constants are immutable

>>> DAYS.MON = 7
...
AttributeError: Immutable attribute

>>> del DAYS.MON 
...
AttributeError: Immutable attribute

Autocomplete only for constants

>>> dir(DAYS)
['FRI', 'MON', 'SAT', 'SUN', 'THU', 'TUE', 'WED']

Sorting like list.sort

>>> DAYS.sort(key=lambda (k, v): v, reverse=True)
>>> list(DAYS)
['SUN', 'SAT', 'FRI', 'THU', 'WED', 'TUE', 'MON']

Copability with python2 and python3

Simple container for constants

from collections import OrderedDict
from copy import deepcopy

class Constants(object):
    """Container of constant"""

    __slots__ = ('__dict__')

    def __init__(self, **kwargs):

        if list(filter(lambda x: not x.isupper(), kwargs)):
            raise AttributeError('Constant name should be uppercase.')

        super(Constants, self).__setattr__(
            '__dict__',
            OrderedDict(map(lambda x: (x[0], deepcopy(x[1])), kwargs.items()))
        )

    def sort(self, key=None, reverse=False):
        super(Constants, self).__setattr__(
            '__dict__',
            OrderedDict(sorted(self.__dict__.items(), key=key, reverse=reverse))
        )

    def __getitem__(self, name):
        return self.__dict__[name]

    def __len__(self):
        return  len(self.__dict__)

    def __iter__(self):
        for name in self.__dict__:
            yield name

    def keys(self):
        return list(self)

    def __str__(self):
        return str(list(self))

    def __repr__(self):
        return '<%s: %s>' % (self.__class__.__name__, str(self.__dict__))

    def __dir__(self):
        return list(self)

    def __setattr__(self, name, value):
        raise AttributeError("Immutable attribute")

    def __delattr__(*_):
        raise AttributeError("Immutable attribute")