<MyComponent text={<span>This is <strong>not</strong> working.</span>} />

and then in your component you can do prop checking like so:

import React from 'react';
export default class MyComponent extends React.Component {
  static get propTypes() {
    return {
      text: React.PropTypes.object, // if you always want react components
      text: React.PropTypes.any, // if you want both text or react components
    }
  }
}

Make sure you choose only one prop type.

Looking for EventHandling, ActionListener?

or code?

JButton b = new JButton("Clear");
b.addActionListener(new ActionListener(){
    public void actionPerformed(ActionEvent e){
        textfield.setText("");
        //textfield.setText(null); //or use this
    }
});

Also See
How to Use Buttons

you can try this.

    $('#id').off().on('click', function() {
        // function body
    });
    $('.class').off().on('click', function() {
        // function body
    });

For a visual way to think about it, picture a clock face that, in your particular example, only goes to 4 instead of 12. If you start at 4 on the clock (which is like starting at zero) and go around it clockwise for 2 "hours", you land on 2, just like going around it clockwise for 6 "hours" would also land you on 2 (6 mod 4 == 2 just like 2 mod 4 == 2).

It depends on number of entities which are going to be updated, if you have large number of entities using JPA Query Update statement is better as you dont have to load all the entities from database, if you are going to update just one entity then using find and update is fine.

Linux (Ubuntu 14.04)

As mentioned, try to kill ipython notebook processes properly by first going to the "running" tab in your ipynb/jupyter browser session, and then check open terminals on your console and shut down with ctrl-c. The latter should be avoided if possible.

If you run an ipython notebook list and continue to see running ipython servers at different ports, make note of which ports the existing notebooks are being served to. Then shut down your TCP ports:

fuser -k 'port#'/tcp 

I'm not sure if there are other risks involved with doing this. If so, let me know.

I'm not sure if you can do this in every browser but you can set the css property of the specified img.
Try to work with jQuery which allows you to make css changes much faster and efficiently.
in jQuery you will have the options of using .animate(),.fadeTo(),.fadeIn(),.hide("slow"),.show("slow") for example.
I mean this CSS snippet should do the work for you:

img
{
opacity:0.4;
filter:alpha(opacity=40); /* For IE8 and earlier */
}

Also check out this website where everything further is explained:
http://www.w3schools.com/css/css_image_transparency.asp

If you want to do this, you need to save it in a variable first. So you don't need to use id to query this element every time.

var el = $("#page_navigation1");

$("#add").click(function(){
  el.attr("id","page_navigation1");
});     

$("#remove").click(function(){
  el.removeAttr("id");
});     

To convert this bytesarray directly to json, you could first convert the bytesarray to a string with decode(), utf-8 is standard. Change the quotation markers.. The last step is to remove the " from the dumped string, to change the json object from string to list.

dumps(s.decode()).replace("'", '"')[1:-1]

Shallow copy:

Some members of the copy may reference the same objects as the original:

class X
{
private:
    int i;
    int *pi;
public:
    X()
        : pi(new int)
    { }
    X(const X& copy)   // <-- copy ctor
        : i(copy.i), pi(copy.pi)
    { }
};

Here, the pi member of the original and copied X object will both point to the same int.

Deep copy:

All members of the original are cloned (recursively, if necessary). There are no shared objects:

class X
{
private:
    int i;
    int *pi;
public:
    X()
        : pi(new int)
    { }
    X(const X& copy)   // <-- copy ctor
        : i(copy.i), pi(new int(*copy.pi))  // <-- note this line in particular!
    { }
};

Here, the pi member of the original and copied X object will point to different int objects, but both of these have the same value.

_{The default copy constructor (which is automatically provided if you don't provide one yourself) creates only shallow copies.}

Correction: Several comments below have correctly pointed out that it is wrong to say that the default copy constructor always performs a shallow copy (or a deep copy, for that matter). Whether a type's copy constructor creates a shallow copy, or deep copy, or something in-between the two, depends on the combination of each member's copy behaviour; a member's type's copy constructor can be made to do whatever it wants, after all.

Here's what section 12.8, paragraph 8 of the 1998 C++ standard says about the above code examples:

The implicitly defined copy constructor for class X performs a memberwise copy of its subobjects. [...] Each subobject is copied in the manner appropriate to its type: [...] [I]f the subobject is of scalar type, the builtin assignment operator is used.

Here is a simple way using the date function:

select *
from hockey_stats
where date(game_date) between date('2012-11-03') and date('2012-11-05')
order by game_date desc

I was struggling with a similar problem yesterday. I already had a "working" solution using jQuery UI's draggable together with jQuery Touch Punch, which are mentioned in other answers. However, using this method was causing weird bugs in some Android devices for me, and therefore I decided to write a small jQuery plugin that can make HTML elements draggable by using touch events instead of using a method that emulates fake mouse events.

The result of this is jQuery Draggable Touch which is a simple jQuery plugin for making elements draggable, that has touch devices as it's main target by using touch events (like touchstart, touchmove, touchend, etc.). It still has a fallback that uses mouse events if the browser/device doesn't support touch events.

JaredPar's code works but only for one level of inheritance. For unlimited levels of inheritance, use the following code

public bool IsTypeDerivedFromGenericType(Type typeToCheck, Type genericType)
{
    if (typeToCheck == typeof(object))
    {
        return false;
    }
    else if (typeToCheck == null)
    {
        return false;
    }
    else if (typeToCheck.IsGenericType && typeToCheck.GetGenericTypeDefinition() == genericType)
    {
        return true;
    }
    else
    {
        return IsTypeDerivedFromGenericType(typeToCheck.BaseType, genericType);
    }
}

If Chrome DevTools is reporting a 404 for a .map file (maybe jquery-1.10.2.min.map, jquery.min.map or jquery-2.0.3.min.map, but can happen with anything) first thing to know is this is only requested when using the DevTools. Your users will not be hitting this 404.

Now you can fix this or disable the sourcemap functionality.

Fix: get the files

Next, it's an easy fix. Head to http://jquery.com/download/ and click the Download the map file link for your version, and you'll want the uncompressed file downloaded as well.

Having the map file in place allows you do debug your minified jQuery via the original sources, which will save a lot of time and frustration if you don't like dealing with variable names like a and c.

More about sourcemaps here: An Introduction to JavaScript Source Maps

Dodge: disable sourcemaps

Instead of getting the files, you can alternatively disable JavaScript source maps completely for now, in your settings. This is a fine choice if you never plan on debugging JavaScript on this page. Use the cog icon in the bottom right of the DevTools, to open settings, then:

You can do this via native javascript code like so:

 
var pattern = /a href=/g;
var sanitizedMarkDownText = rawMarkDownText.replace(pattern,"a target='_blank' href=");

JSFiddle Code

You're running the code before the DOM is loaded.

Try this:

Live example:

http://jsfiddle.net/FvMYz/

$(function() {    // Makes sure the code contained doesn't run until
                  //     all the DOM elements have loaded

    $('#colorselector').change(function(){
        $('.colors').hide();
        $('#' + $(this).val()).show();
    });

});

OK, let's go a bit more comprehensive and start with what's Map for those who don't know this feature in JavaScript... MDN says:

The Map object holds key-value pairs and remembers the original insertion order of the keys.
Any value (both objects and primitive values) may be used as either a key or a value.

As you mentioned, you can easily create an instance of Map using new keyword... In your case:

let myMap = new Map().set('a', 1).set('b', 2);

So let's see...

The way you mentioned is an OK way to do it, but yes, there are more concise ways to do that...

Map has many methods which you can use, like set() which you already used to assign the key values...

One of them is keys() which returns all the keys...

In your case, it will return:

MapIterator {"a", "b"}

and you easily convert them to an Array using ES6 ways, like spread operator...

const b = [...myMap.keys()];

@Verse answer works fine. But there is a small thing I would like to add. instead of installing php5-mbstring, php5-gd, php5-intl, php5-xsl. This answer is based on @Regolith answer: Package has no installation candidate .

Install according to your php-version.

First check which php version you have by sudo php -v. I have php7 so the result is:

PHP 7.0.28-0ubuntu0.16.04.1 (cli) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
   with Zend OPcache v7.0.28-0ubuntu0.16.04.1, Copyright (c) 1999-2017, by Zend Technologies

since i have php7, I will do the following to list the php packages:
sudo apt-cache search php7-*

this returned

libapache2-mod-php7.0 - server-side, HTML-embedded scripting language (Apache 2 module)
php-all-dev - package depending on all supported PHP development packages
php7.0 - server-side, HTML-embedded scripting language (metapackage)
php7.0-cgi - server-side, HTML-embedded scripting language (CGI binary)
php7.0-cli - command-line interpreter for the PHP scripting language
php7.0-common - documentation, examples and common module for PHP
php7.0-curl - CURL module for PHP
php7.0-dev - Files for PHP7.0 module development
php7.0-gd - GD module for PHP
php7.0-gmp - GMP module for PHP
php7.0-json - JSON module for PHP
php7.0-ldap - LDAP module for PHP
php7.0-mysql - MySQL module for PHP
php7.0-odbc - ODBC module for PHP
php7.0-opcache - Zend OpCache module for PHP
php7.0-pgsql - PostgreSQL module for PHP
php7.0-pspell - pspell module for PHP
php7.0-readline - readline module for PHP
php7.0-recode - recode module for PHP
php7.0-snmp - SNMP module for PHP
php7.0-sqlite3 - SQLite3 module for PHP
php7.0-tidy - tidy module for PHP
php7.0-xml - DOM, SimpleXML, WDDX, XML, and XSL module for PHP
php7.0-xmlrpc - XMLRPC-EPI module for PHP
libphp7.0-embed - HTML-embedded scripting language (Embedded SAPI library)
php7.0-bcmath - Bcmath module for PHP
php7.0-bz2 - bzip2 module for PHP
php7.0-enchant - Enchant module for PHP
php7.0-fpm - server-side, HTML-embedded scripting language (FPM-CGI binary)
php7.0-imap - IMAP module for PHP
php7.0-interbase - Interbase module for PHP
php7.0-intl - Internationalisation module for PHP
php7.0-mbstring - MBSTRING module for PHP
php7.0-mcrypt - libmcrypt module for PHP
php7.0-phpdbg - server-side, HTML-embedded scripting language (PHPDBG binary)
php7.0-soap - SOAP module for PHP
php7.0-sybase - Sybase module for PHP
php7.0-xsl - XSL module for PHP (dummy)
php7.0-zip - Zip module for PHP
php7.0-dba - DBA module for PHP

now to install packages run the following command with your desired package

sudo apt-get install -y php7.0-gd, php7.0-intl, php7.0-xsl, php7.0-mbstring

Note: php7.0-mbstring, php7.0-gd php7.0-intl php7.0-xsl are the package that are listed above.

UPDATE: Don't forget to restart apache/<your_server>

sudo service apache2 reload

I ran into this issue as well. My fix was to create a child schema. See below for an example for your models.

---- Person model

const mongoose = require('mongoose');
const SingleFriend = require('./SingleFriend');
const Schema   = mongoose.Schema;

const productSchema = new Schema({
  friends    : [SingleFriend.schema]
});

module.exports = mongoose.model('Person', personSchema);

***Important: SingleFriend.schema -> make sure to use lowercase for schema

--- Child schema

const mongoose = require('mongoose');
const Schema   = mongoose.Schema;

const SingleFriendSchema = new Schema({
  Name: String
});

module.exports = mongoose.model('SingleFriend', SingleFriendSchema);

Chris Chilvers' advice should be the first course of action but sometimes we're dealing with third party libraries that makes this challenging and requires us to do naughty things... which this is. IMO it's a crime of presumption similar to using !important in CSS.

Having said that, building on Anurag's answer, here are a few additions. These methods allow for multiple events (e.g. "keydown keyup paste"), arbitrary positioning of the handler and reordering after the fact.

$.fn.bindFirst = function (name, fn) {
    this.bindNth(name, fn, 0);
}

$.fn.bindNth(name, fn, index) {
    // Bind event normally.
    this.bind(name, fn);
    // Move to nth position.
    this.changeEventOrder(name, index);
};

$.fn.changeEventOrder = function (names, newIndex) {
    var that = this;
    // Allow for multiple events.
    $.each(names.split(' '), function (idx, name) {
        that.each(function () {
            var handlers = $._data(this, 'events')[name.split('.')[0]];
            // Validate requested position.
            newIndex = Math.min(newIndex, handlers.length - 1);
            handlers.splice(newIndex, 0, handlers.pop());
        });
    });
};

One could extrapolate on this with methods that would place a given handler before or after some other given handler.

This will give DISTINCT values across all the columns:

SELECT DISTINCT value
FROM (
    SELECT DISTINCT a AS value FROM my_table
    UNION SELECT DISTINCT b AS value FROM my_table
    UNION SELECT DISTINCT c AS value FROM my_table
) AS derived

Static variables (file scope and function static) are initialized to zero:

int x; // zero
int y = 0; // also zero

void foo() {
    static int x; // also zero
}

Non-static variables (local variables) are indeterminate. Reading them prior to assigning a value results in undefined behavior.

void foo() {
    int x;
    printf("%d", x); // the compiler is free to crash here
}

In practice, they tend to just have some nonsensical value in there initially - some compilers may even put in specific, fixed values to make it obvious when looking in a debugger - but strictly speaking, the compiler is free to do anything from crashing to summoning demons through your nasal passages.

As for why it's undefined behavior instead of simply "undefined/arbitrary value", there are a number of CPU architectures that have additional flag bits in their representation for various types. A modern example would be the Itanium, which has a "Not a Thing" bit in its registers; of course, the C standard drafters were considering some older architectures.

Attempting to work with a value with these flag bits set can result in a CPU exception in an operation that really shouldn't fail (eg, integer addition, or assigning to another variable). And if you go and leave a variable uninitialized, the compiler might pick up some random garbage with these flag bits set - meaning touching that uninitialized variable may be deadly.

Here is a way to achieve the same thing using Mootools, in horizontal, vertical or both.

Element.implement({
inVerticalView: function (full) {
    if (typeOf(full) === "null") {
        full = true;
    }

    if (this.getStyle('display') === 'none') {
        return false;
    }

    // Window Size and Scroll
    var windowScroll = window.getScroll();
    var windowSize = window.getSize();
    // Element Size and Scroll
    var elementPosition = this.getPosition();
    var elementSize = this.getSize();

    // Calculation Variables
    var docViewTop = windowScroll.y;
    var docViewBottom = docViewTop + windowSize.y;
    var elemTop = elementPosition.y;
    var elemBottom = elemTop + elementSize.y;

    if (full) {
        return ((elemBottom >= docViewTop) && (elemTop <= docViewBottom)
            && (elemBottom <= docViewBottom) && (elemTop >= docViewTop) );
    } else {
        return ((elemBottom <= docViewBottom) && (elemTop >= docViewTop));
    }
},
inHorizontalView: function(full) {
    if (typeOf(full) === "null") {
        full = true;
    }

    if (this.getStyle('display') === 'none') {
        return false;
    }

    // Window Size and Scroll
    var windowScroll = window.getScroll();
    var windowSize = window.getSize();
    // Element Size and Scroll
    var elementPosition = this.getPosition();
    var elementSize = this.getSize();

    // Calculation Variables
    var docViewLeft = windowScroll.x;
    var docViewRight = docViewLeft + windowSize.x;
    var elemLeft = elementPosition.x;
    var elemRight = elemLeft + elementSize.x;

    if (full) {
        return ((elemRight >= docViewLeft) && (elemLeft <= docViewRight)
            && (elemRight <= docViewRight) && (elemLeft >= docViewLeft) );
    } else {
        return ((elemRight <= docViewRight) && (elemLeft >= docViewLeft));
    }
},
inView: function(full) {
    return this.inHorizontalView(full) && this.inVerticalView(full);
}});

Mmh ... there are many ways. I answer another network discovery question, and I write a little getting started.

Some tcpip stacks reply to icmp broadcasts. So you can try a PING to your network broadcast address.

For example, you have ip 192.168.1.1 and subnet 255.255.255.0

1. ping 192.168.1.255
2. stop the ping after 5 seconds
3. watch the devices replies : arp -a

Note : on step 3. you get the lists of the MAC-to-IP cached entries, so there are also the hosts in your subnet you exchange data to in the last minutes, even if they don't reply to icmp_get.

Note (2) : now I am on linux. I am not sure, but it can be windows doesn't reply to icm_get via broadcast.

Is it the only one device attached to your pc ? Is it a router or another simple pc ?

For example you have a start program named run.sh to start it working at background do the following command line. ./run.sh &>/dev/null &

basically BASE_DIR is your django project directory, same dir where manage.py is.

    TEMPLATES = [
        {
            'BACKEND': 'django.template.backends.django.DjangoTemplates',
            'DIRS': [os.path.join(BASE_DIR, 'templates')],
            'APP_DIRS': True,
            'OPTIONS': {
                'context_processors': [
                    'django.template.context_processors.debug',
                    'django.template.context_processors.request',
                    'django.contrib.auth.context_processors.auth',
                    'django.contrib.messages.context_processors.messages',
                ],
            },
        },
    ]

Strictly speaking, Iterable does not have size. Think data structure like a cycle.

And think about following Iterable instance, No size:

    new Iterable(){

        @Override public Iterator iterator() {
            return new Iterator(){

                @Override
                public boolean hasNext() {
                    return isExternalSystemAvailble();
                }

                @Override
                public Object next() {
                    return fetchDataFromExternalSystem();
                }};
        }};

SELECT count(*), dateadded FROM Responses
WHERE DateAdded >=dateadd(day,datediff(day,0,GetDate())- 7,0)
group by dateadded

RETURN

This will give you a count of records for each dateadded value. Don't make the mistake of adding more columns to the select, expecting to get just one count per day. The group by clause will give you a row for every unique instance of the columns listed.

Before the command clickAndWait add the following code so the script will wait until the specific link to be visible:

   <tr>
        <td>waitForVisible</td>
        <td>link=do something</td>
        <td></td>
    </tr>

The practice of using the wait commands instead of pause is most of the times more efficient and more stable.

Actually it is possible.
1. First, create the class and in the constructor return the called _public function.
2. In the called _public function pass the this reference (to get the access to all private methods and props), and all arguments from constructor (that will be passed in new Names())
3. In the _public function scope there is also the Names class with the access to this (_this) reference of the private Names class

class Names {
  constructor() {
    this.privateProperty = 'John';
    return _public(this, arguments);
  }
  privateMethod() { }
}

const names = new Names(1,2,3);
console.log(names.somePublicMethod); //[Function]
console.log(names.publicProperty); //'Jasmine'
console.log(names.privateMethod); //undefined
console.log(names.privateProperty); //undefind

function _public(_this, _arguments) {
  class Names {
    constructor() {
      this.publicProperty = 'Jasmine';
      _this.privateProperty; //"John";
      _this.privateMethod; //[Function]
    }

    somePublicMethod() {
      _this.privateProperty; //"John";
      _this.privateMethod; //[Function]
    }

  }
  return new Names(..._arguments);
}

The parameters to main represent the command line parameters provided to the program when it was started. The argc parameter represents the number of command line arguments, and char *argv[] is an array of strings (character pointers) representing the individual arguments provided on the command line.

public boolean checkInternetConnection(Context context) {
    ConnectivityManager connectivity = (ConnectivityManager) context
        .getSystemService(Context.CONNECTIVITY_SERVICE);
    if (connectivity == null) {
        return false;
    } else {
        NetworkInfo[] info = connectivity.getAllNetworkInfo();
        if (info != null) {
            for (int i = 0; i < info.length; i++){
                if (info[i].getState()==NetworkInfo.State.CONNECTED){
                    return true;
                }
            }
        }
    }
    return false;
}

Flex does this by default.

<div id="flex">
 <div id="response">
 </div> 
 <div id="note">
 </div>
</div>   

CSS:

#flex{display:flex}
#response{width:65%}
#note{width:35%}

https://jsfiddle.net/784pnojq/1/

BONUS: multiple rows

https://jsfiddle.net/784pnojq/2/

In Visual Studio 2012 you have to use (I think in Visual Studio 2010, too)

if $(Configuration) == Debug xcopy

$(ConfigurationName) was listed as a macro, but it wasn't assigned.

Compare: Macros for Build Commands and Properties

Add these lines in your .htaccess file and it will work for all browsers. Works for me.

AddType video/ogg .ogv
AddType video/mp4 .mp4
AddType video/webm .webm

If you dun have .htaccess file in your site then create new one :) its obvious i guess.

For those looking to debug gradle dependencies in react-native projects, the command is (executed from projectname/android)

./gradlew app:dependencies --configuration compile

Use a HashSet<T>. For example:

var items = "A B A D A C".Split(' ');
var unique_items = new HashSet<string>(items);
foreach (string s in unique_items)
    Console.WriteLine(s);

prints

A
B
D
C

while (true)
        {//ie is the WebBrowser object
            if (ie.ReadyState == tagREADYSTATE.READYSTATE_COMPLETE)
            {
                break;
            }
            Thread.Sleep(500);
        }

I used this way to wait untill the page loads.

If you use ICU4J (http://icu-project.org/apiref/icu4j/)

Here is my code:

String charset = "ISO-8859-1"; //Default chartset, put whatever you want

byte[] fileContent = null;
FileInputStream fin = null;

//create FileInputStream object
fin = new FileInputStream(file.getPath());

/*
 * Create byte array large enough to hold the content of the file.
 * Use File.length to determine size of the file in bytes.
 */
fileContent = new byte[(int) file.length()];

/*
 * To read content of the file in byte array, use
 * int read(byte[] byteArray) method of java FileInputStream class.
 *
 */
fin.read(fileContent);

byte[] data =  fileContent;

CharsetDetector detector = new CharsetDetector();
detector.setText(data);

CharsetMatch cm = detector.detect();

if (cm != null) {
    int confidence = cm.getConfidence();
    System.out.println("Encoding: " + cm.getName() + " - Confidence: " + confidence + "%");
    //Here you have the encode name and the confidence
    //In my case if the confidence is > 50 I return the encode, else I return the default value
    if (confidence > 50) {
        charset = cm.getName();
    }
}

Remember to put all the try-catch need it.

I hope this works for you.

[your Array name] = Empty

Then the array will be without content and can be filled again.

If you have access to the cross domain server and don't want to make any code changes on server side, you can use a library called - 'xdomain'.

How it works:

Step 1: server 1: include the xdomain library and configure the cross domain as a slave:

<script src="js/xdomain.min.js" slave="https://crossdomain_server/proxy.html"></script>

Step 2: on cross domain server, create a proxy.html file and include server 1 as a master:

proxy.html:
<!DOCTYPE HTML>
<script src="js/xdomain.min.js"></script>
<script>
  xdomain.masters({
    "https://server1" : '*'
  });
</script>

Step 3:

Now, you can make an AJAX call to the proxy.html as endpoint from server1. This is bypass the CORS request. The library internally uses iframe solution which works with Credentials and all possible methods: GET, POST etc.

Query ajax code:

$.ajax({
        url: 'https://crossdomain_server/proxy.html',
        type: "POST",
        data: JSON.stringify(_data),
        dataType: "json",
        contentType: "application/json; charset=utf-8"
    })
    .done(_success)
    .fail(_failed)

In Apache Drill, use backquotes:

select `from` from table;

Does not work, you have to do this:

if ( $("#your_select_id option[value='enter_value_here']").length == 0 ){
  alert("option doesn't exist!");
}

Use a terminal-handling library like the curses module:

The curses module provides an interface to the curses library, the de-facto standard for portable advanced terminal handling.

%f and %g does the same thing. Only difference is that %g is the shorter form of %f. That is the precision after decimal point is larger in %f compared to %g

It depends on if you mean '\n' (linefeed) or '\r\n' (carriage return + linefeed). The former is not the Windows default and will not show properly in some text editors (like Notepad).

You can do

sb.Append(Environment.NewLine);
sb.Append("\t");

or

sb.Append("\r\n\t");

Another post on this topic with a nice jQuery/Ajax/PHP solution:

shell scripting and jQuery

If your list elements are immutable objects then you can use this, otherwise you have to use deepcopy from copy module.

you can also use shortest way for deep copy a list like this.

a = [0,1,2,3,4,5,6,7,8,9,10]
b = a[:] #deep copying the list a and assigning it to b
print id(a)
20983280
print id(b)
12967208

a[2] = 20
print a
[0, 1, 20, 3, 4, 5, 6, 7, 8, 9,10]
print b
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10]

LEFT JOIN the table to itself, with the join condition worked out so the row matched in the joined version of the table is one row previous, for your particular definition of "previous".

Update: At first I was thinking you would want to keep all rows, with NULLs for the condition where there was no previous row. Reading it again you just want that rows culled, so you should an inner join rather than a left join.

Update:

Newer versions of Sql Server also have the LAG and LEAD Windowing functions that can be used for this, too.

@RequestBody MultipartFile[] submissions

should be

@RequestParam("file") MultipartFile[] submissions

The files are not the request body, they are part of it and there is no built-in HttpMessageConverter that can convert the request to an array of MultiPartFile.

You can also replace HttpServletRequest with MultipartHttpServletRequest, which gives you access to the headers of the individual parts.

Documentation here, and I'll use the Frankfurt region as an example.

There are 2 different URL styles:

• Virtual host style: https://BUCKET.s3.amazonaws.com/FILE
• Path style: https://s3.eu-central-1.amazonaws.com/BUCKET/FILE

But this url does not work:

• https://s3.amazonaws.com/BUCKET/FILE

The message is explicit: The bucket you are attempting to access must be addressed using the specified endpoint. Please send all future requests to this endpoint.

I may be talking about another problem because I'm not getting NoSuchKey error but I suspect the error message has been made clearer over time.

I just have the same problem, just open the task manager, go to services tab and search MySQL_One service, rigth click and start, this works for very good.

It makes sure that the returned object (which is an RValue at that point) can't be modified. This makes sure the user can't do thinks like this:

myFunc() = Object(...);

That would work nicely if myFunc returned by reference, but is almost certainly a bug when returned by value (and probably won't be caught by the compiler). Of course in C++11 with its rvalues this convention doesn't make as much sense as it did earlier, since a const object can't be moved from, so this can have pretty heavy effects on performance.

Thanks for this post, it helped me a lot.

Dunno if it can help but I had the issue and thanks to you I found what I think is another way to solve it based on this boolean equivalence:

"A or B" is the same as "not(not A and not B)"

Thus:

IF [%var%] == [1] OR IF [%var%] == [2] ECHO TRUE

Becomes:

IF not [%var%] == [1] IF not [%var%] == [2] ECHO FALSE

I find this problem appearing when I've done a git add . in a subdirectory below where my .gitignore file lives (the home directory of my repository, so to speak). Try changing directories to your uppermost directory and running git add . followed by git commit -m "my commit message".

For when you want a 1-liner

while( -not ( ($choice= (Read-Host "May I continue?")) -match "y|n")){ "Y or N ?"}

To fix/install Android USB driver on Windows 7/8 32bit/64bit:

1. Connect your Android-powered device to your computer's USB port.
2. Right-click on Computer from your desktop or Windows Explorer, and select Manage.
3. Select Devices in the left pane.
4. Locate and expand Other device in the right pane.
5. Right-click the device name (Nexus 7 / Nexus 5 / Nexus 4) and select Update Driver Software. This will launch the Hardware Update Wizard.
6. Select Browse my computer for driver software and click Next.
7. Click Browse and locate the USB driver folder. (The Google USB Driver is located in <sdk>\extras\google\usb_driver\.)
8. Click Next to install the driver.

If it still doesn't work try changing from MTP to PTP.

To list all of the screen sessions for a user, run the following command as that user:

screen -ls

To see all screen sessions on a specific machine you can do:

ls -laR /var/run/screen/

I get this on my machine:

gentle ~ # ls -laR /var/run/screen/

/var/run/screen/:
total 1
drwxrwxr-x  4 root utmp   96 Mar  1  2005 .
drwxr-xr-x 10 root root  840 Feb  1 03:10 ..
drwx------  2 josh users  88 Jan 13 11:33 S-josh
drwx------  2 root root   48 Feb 11 10:50 S-root

/var/run/screen/S-josh:
total 0
drwx------ 2 josh users 88 Jan 13 11:33 .
drwxrwxr-x 4 root utmp  96 Mar  1  2005 ..
prwx------ 1 josh users  0 Feb 11 10:41 12931.pts-0.gentle

/var/run/screen/S-root:
total 0
drwx------ 2 root root 48 Feb 11 10:50 .
drwxrwxr-x 4 root utmp 96 Mar  1  2005 ..

This is a rather brilliantly Unixy use of Unix Sockets wrapped in filesystem permissions to handle security, state, and streams.

If you are doing it before the setContentView() method call, then the values will be null.

This will result in null:

super.onCreate(savedInstanceState);

Button btn = (Button)findViewById(R.id.btnAddContacts);
String text = (String) btn.getText();

setContentView(R.layout.main_contacts);

while this will work fine:

super.onCreate(savedInstanceState);
setContentView(R.layout.main_contacts);

Button btn = (Button)findViewById(R.id.btnAddContacts);
String text = (String) btn.getText();

I always liked Aptana Studio for HTML development. Aptana Studio 3 beta supports the latest HTML5 specifications and is quite fast (compared to version 2). There is a standalone and an Eclipse pug-in version available.
UPDATE: Final release available (same link)

Class Row will handle one row from your database.

Complete implementation of UpdateTask responsible for filling up UI.

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import javax.swing.JTable;
import javax.swing.SwingWorker;

public class JTableUpdateTask extends SwingWorker<JTable, Row> {

    JTable      table       = null;

    ResultSet   resultSet   = null;

    public JTableUpdateTask(JTable table, ResultSet rs) {
        this.table = table;
        this.resultSet = rs;
    }

    @Override
    protected JTable doInBackground() throws Exception {
        List<Row> rows = new ArrayList<Row>();
        Object[] values = new Object[6];
        while (resultSet.next()) {
            values = new Object[6];
            values[0] = resultSet.getString("id");
            values[1] = resultSet.getString("student_name");
            values[2] = resultSet.getString("street");
            values[3] = resultSet.getString("city");
            values[4] = resultSet.getString("state");
            values[5] = resultSet.getString("zipcode");
            Row row = new Row(values);
            rows.add(row);
        }
        process(rows); 
        return this.table;
    }

    protected void process(List<Row> chunks) {
        ResultSetTableModel tableModel = (this.table.getModel() instanceof ResultSetTableModel ? (ResultSetTableModel) this.table.getModel() : null);
        if (tableModel == null) {
            try {
                tableModel = new ResultSetTableModel(this.resultSet.getMetaData(), chunks);
            } catch (SQLException e) {
                e.printStackTrace();
            }
            this.table.setModel(tableModel);
        } else {
            tableModel.getRows().addAll(chunks);
        }
        tableModel.fireTableDataChanged();
    }
}

Table Model:

import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import javax.swing.table.AbstractTableModel;

/**
 * Simple wrapper around Object[] representing a row from the ResultSet.
 */
class Row {
    private final Object[]  values;

    public Row(Object[] values) {
        this.values = values;
    }

    public int getSize() {
        return values.length;
    }

    public Object getValue(int i) {
        return values[i];
    }
}

// TableModel implementation that will be populated by SwingWorker.
public class ResultSetTableModel extends AbstractTableModel {
    private final ResultSetMetaData rsmd;

    private List<Row>               rows;

    public ResultSetTableModel(ResultSetMetaData rsmd, List<Row> rows) {
        this.rsmd = rsmd;
        if (rows != null) {
            this.rows = rows;
        } else {
            this.rows = new ArrayList<Row>();
        }

    }

    public int getRowCount() {
        return rows.size();
    }

    public int getColumnCount() {
        try {
            return rsmd.getColumnCount();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return 0;
    }

    public Object getValue(int row, int column) {
        return rows.get(row).getValue(column);
    }

    public String getColumnName(int col) {
        try {
            return rsmd.getColumnName(col + 1);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return "";
    }

    public Class<?> getColumnClass(int col) {
        String className = "";
        try {
            className = rsmd.getColumnClassName(col);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return className.getClass();
    }

    @Override
    public Object getValueAt(int rowIndex, int columnIndex) {
        if(rowIndex > rows.size()){
            return null;
        }
        return rows.get(rowIndex).getValue(columnIndex);
    }

    public List<Row> getRows() {
        return this.rows;
    }

    public void setRows(List<Row> rows) {
        this.rows = rows;
    }
}

Main Application which builds UI and does the database connection

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTable;

public class MainApp {
    static Connection conn = null;
    static void init(final ResultSet rs) {
        JFrame frame = new JFrame();
        frame.setLayout(new BorderLayout());
        final JTable table = new JTable();
        table.setPreferredSize(new Dimension(300,300));
        table.setMinimumSize(new Dimension(300,300));
        table.setMaximumSize(new Dimension(300,300));
        frame.add(table, BorderLayout.CENTER);
        JButton button = new JButton("Start Loading");
        button.setPreferredSize(new Dimension(30,30));
        button.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                JTableUpdateTask jTableUpdateTask = new JTableUpdateTask(table, rs);
                jTableUpdateTask.execute();

            }
        });
        frame.add(button, BorderLayout.SOUTH);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/test";
        String driver = "com.mysql.jdbc.Driver";
        String userName = "root";
        String password = "root";
        try {
            Class.forName(driver).newInstance();
            conn = DriverManager.getConnection(url, userName, password);
            PreparedStatement pstmt = conn.prepareStatement("Select id, student_name, street, city, state,zipcode from student");
            ResultSet rs = pstmt.executeQuery();
            init(rs);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

Since NumPy version 1.13 it contains an isnat function:

>>> import numpy as np
>>> np.isnat(np.datetime64('nat'))
True

It also works for arrays:

>>> np.isnat(np.array(['nat', 1, 2, 3, 4, 'nat', 5], dtype='datetime64[D]'))
array([ True, False, False, False, False,  True, False], dtype=bool)

For SVG elements

Using something like selection.node().getBBox() you get values like

{
    height: 5, 
    width: 5, 
    y: 50, 
    x: 20
} 

For HTML elements

Use selection.node().getBoundingClientRect()

the simple and easy way to do that is use on event:

$('body').on('click','#element',function(){
    //somthing
});

but we can say this is not the best way to do this. I suggest a another way to do this is use clone() method instead of using dynamic html. Write some html in you file for example:

<div id='div1'></div>

Now in the script tag make a clone of this div then all the properties of this div would follow with new element too. For Example:

var dynamicDiv = jQuery('#div1').clone(true);

Now use the element dynamicDiv wherever you want to add it or change its properties as you like. Now all jQuery functions will work with this element

I had the very same error message. Finally I figured out I misspelled the name of the table in the command:

ALTER TABLE `users` ADD FOREIGN KEY (country_id) REFERENCES country (id);

versus

ALTER TABLE `users` ADD FOREIGN KEY (country_id) REFERENCES countries (id);

I wonder why on earth MySQL cannot tell such a table does not exist...

not allowed to comment, therefore:

The answer from Upen works just fine, but not if you have Jenkins Pipeline Jobs mixed with Freestyle Jobs. There is no such Method as DoWipeWorkspace on Pipeline Jobs. So I modified the Script in order to skip those:

import hudson.model.*
import org.jenkinsci.plugins.workflow.job.WorkflowJob

// For each project
for(item in Hudson.instance.items) {
  // check that job is not building
  if(!item.isBuilding() && !(item instanceof WorkflowJob))
  {
    println("Wiping out workspace of job "+item.name)
    item.doDoWipeOutWorkspace()
  }
  else {
    println("Skipping job "+item.name+", currently building")
  }
}

you could also filter by Job Names if required: item.getDisplayName().toLowerCase().contains("release")

tf.nn.softmax computes the forward propagation through a softmax layer. You use it during evaluation of the model when you compute the probabilities that the model outputs.

tf.nn.softmax_cross_entropy_with_logits computes the cost for a softmax layer. It is only used during training.

The logits are the unnormalized log probabilities output the model (the values output before the softmax normalization is applied to them).

You could also do this:

#!/usr/bin/perl

use strict;
use warnings;

$^I = '.bak'; # create a backup copy 

while (<>) {
   s/<PREF>/ABCD/g; # do the replacement
   print; # print to the modified file
}

Invoke the script with by

./script.pl input_file

You will get a file named input_file, containing your changes, and a file named input_file.bak, which is simply a copy of the original file.

Use a regular expression, e.g.

[RegularExpression("([1-9][0-9]*)", ErrorMessage = "Count must be a natural number")]
public int Count { get; set; }

How I got this problem,

When I changed from Eclipse Juno to Luna, and checkout my maven projects from SVN repo, I got the same issues while building the applications.

What I tried? I tried clean Local repository and then updating all the versions again using -U option. But my problem continued.

Then I went to Window --> Preferences -> Maven --> User Settings --> and clicked on Reindex button under Local Repository and wait for the reindex to happen.

That's all, the issue is resolved.

try rm -r -f <folder name> or rm -r --force <folder name> - forcefully delete a folder

name is the name that is used when the value is passed (in the url or in the posted data). id is used to uniquely identify the element for CSS styling and JavaScript.

The id can be used as an anchor too. In the old days, <a name was used for that, but you should use the id for anchors too. name is only to post form data.

I suggest using the Google Charts API because you can specify the text, text color, fill color and outline color, all using hex color codes, e.g. #FF0000 for red. You can call it as follows:

function getIcon(text, fillColor, textColor, outlineColor) {
  if (!text) text = '•'; //generic map dot
  var iconUrl = "http://chart.googleapis.com/chart?cht=d&chdp=mapsapi&chl=pin%27i\\%27[" + text + "%27-2%27f\\hv%27a\\]h\\]o\\" + fillColor + "%27fC\\" + textColor + "%27tC\\" + outlineColor + "%27eC\\Lauto%27f\\&ext=.png";
  return iconUrl;
}

Then, when you create your marker you just set the icon property as such, where the myColor variables are hex values (minus the hash sign):

var marker = new google.maps.Marker({
  position: new google.maps.LatLng(locations[i][1], locations[i][2]),
  animation: google.maps.Animation.DROP,
  map: map,
  icon: getIcon(null, myColor, myColor2, myColor3)
});

You can use http://chart.googleapis.com/chart?chst=d_map_pin_letter&chld=•|FF0000, which is a bit easier to decipher, as an alternate URL if you only need to set text and fill color.

khurram's answer refers to a 3rd party site that redirects to the Google Charts API. This means if that person takes down their server you're hosed. I prefer having the flexibility the Google API offers as well as the reliability of going directly to Google. Just make sure you specify a value for each of the colors or it won't work.

Yes, you can program Android apps in C++ (for the most part), using the Native Development Kit (NDK), although Java is the primary/preferred language for programming Android, and your C++ code will likely have to interface with Java components, and you'll likely need to read and understand the documentation for Java components, as well. Therefore, I'd advise you to use Java unless you have some existing C++ code base that you need to port and that isn't practical to rewrite in Java.

Java is very similar to C++, I don't think you will have any problems picking it up... going from C++ to Java is incredibly easy; going from Java to C++ is a little more difficult, though not terrible. Java for C++ Programmers does a pretty good job at explaining the differences. Writing your Android code in Java will be more idiomatic and will also make the development process easier for you (as the tooling for the Java Android SDK is significantly better than the corresponding NDK tooling)

In terms of setup, Google provides the Android Studio IDE for both Java and C++ Android development (with Gradle as the build system), but you are free to use whatever IDE or build system you want so long as, under the hood, you are using the Android SDK / NDK to produce the final outputs.

you have to use the 'prop' function :

.prop('checked', true);

Before jQuery 1.6 (see user2063626's answer):

.attr('checked','checked')

Use the substring method, as follows:

int n = 8;
String s = "Hello, World!";
System.out.println(s.substring(0,n);

If n is greater than the length of the string, this will throw an exception, as one commenter has pointed out. one simple solution is to wrap all this in the condition if(s.length()<n) in your else clause, you can choose whether you just want to print/return the whole String or handle it another way.

Below is an example of multiple figures that I used recently in Latex. You need to call these packages

\usepackage{graphicx}
\usepackage{subfig})


\begin{figure}[H]%

    \centering

    \subfloat[Row1]{{\includegraphics[scale=.36]{1.png} }}%

    \subfloat[Row2]{{\includegraphics[scale=.36]{2.png} }}%

    \subfloat[Row3]{{\includegraphics[scale=.36]{3.png} }}%
    \hfill
    \subfloat[Row4]{{\includegraphics[scale=0.37]{4.png} }}%

    \subfloat[Row5]{{\includegraphics[scale=0.37]{5.png} }}%

    \caption{Multiple figures in latex.}%

    \label{fig:MFL}%

\end{figure}

I know this is old questions but since I too have the same problem just now and found out the answer, thought I might share it. The problem was due to configuration at pood.d/ directory.

Open

/etc/php5/fpm/pool.d/www.conf

find

listen = 127.0.0.1:9000

change to

listen = /var/run/php5-fpm.sock

Restart both nginx and php5-fpm service afterwards and check if php5-fpm.sock already created.

It's not a matter of security. The HTTP protocol defines GET-type requests as being idempotent, while POSTs may have side effects. In plain English, that means that GET is used for viewing something, without changing it, while POST is used for changing something. For example, a search page should use GET, while a form that changes your password should use POST.

Also, note that PHP confuses the concepts a bit. A POST request gets input from the query string and through the request body. A GET request just gets input from the query string. So a POST request is a superset of a GET request; you can use $_GET in a POST request, and it may even make sense to have parameters with the same name in $_POST and $_GET that mean different things.

For example, let's say you have a form for editing an article. The article-id may be in the query string (and, so, available through $_GET['id']), but let's say that you want to change the article-id. The new id may then be present in the request body ($_POST['id']). OK, perhaps that's not the best example, but I hope it illustrates the difference between the two.

Yet another option would be to utilize scriptjs package for that matter which

allows you to load script resources on-demand from any URL

Example

Install the package:

npm i scriptjs

and type definitions for scriptjs:

npm install --save @types/scriptjs

Then import $script.get() method:

import { get } from 'scriptjs';

and finally load script resource, in our case Google Maps library:

export class AppComponent implements OnInit {
  ngOnInit() {
    get("https://maps.googleapis.com/maps/api/js?key=", () => {
        //Google Maps library has been loaded...
    });
  }
}

Demo

you need to include the Wordpress loop in your search.php this is example

search.php template file:

<?php get_header(); ?>
<?php
$s=get_search_query();
$args = array(
                's' =>$s
            );
    // The Query
$the_query = new WP_Query( $args );
if ( $the_query->have_posts() ) {
        _e("<h2 style='font-weight:bold;color:#000'>Search Results for: ".get_query_var('s')."</h2>");
        while ( $the_query->have_posts() ) {
           $the_query->the_post();
                 ?>
                    <li>
                        <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
                    </li>
                 <?php
        }
    }else{
?>
        <h2 style='font-weight:bold;color:#000'>Nothing Found</h2>
        <div class="alert alert-info">
          <p>Sorry, but nothing matched your search criteria. Please try again with some different keywords.</p>
        </div>
<?php } ?>

<?php get_sidebar(); ?>
<?php get_footer(); ?>

Accordingly to W3C checked input's attribute can be absent/ommited or have "checked" as its value. This does not invalidate other values because there's no restriction to the browser implementation to allow values like "true", "on", "yes" and so on. To guarantee that you'll write a cross-browser checkbox/radio use checked="checked", as recommended by W3C.

disabled, readonly and ismap input's attributes go on the same way.

EDITED

empty is not a valid value for checked, disabled, readonly and ismap input's attributes, as warned by @Quentin

As discussed above, we need to implement Select Class in Selenium and further we can use various available methods like :-

If you want a heapdump on out-of-memory, you can start Java with the option -XX:-HeapDumpOnOutOfMemoryError

c.f. JVM Options reference page

The other two answers are correct. When you include spaces in your CSS selectors you're targeting child elements so:

.form-group .required {
    styles
}

Is targeting an element with the class of "required" that is inside an element with the class of "form-group".

Without the space it's targeting an element that has both classes. 'required' and 'form-group'

You are looking for the CASE statement

http://msdn.microsoft.com/en-us/library/ms181765.aspx

Example copied from MSDN:

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

When you want to show an URL of remote branches, try:

git remote -v

I have tested this code and it's working fine:

let blurEffect = UIBlurEffect(style: UIBlurEffect.Style.dark)
let blurEffectView = UIVisualEffectView(effect: blurEffect)
blurEffectView.frame = view.bounds
blurEffectView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
view.addSubview(blurEffectView)

For Swift 3.0:

let blurEffect = UIBlurEffect(style: UIBlurEffectStyle.dark)
let blurEffectView = UIVisualEffectView(effect: blurEffect)
blurEffectView.frame = view.bounds
blurEffectView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
view.addSubview(blurEffectView)

For Swift 4.0:

let blurEffect = UIBlurEffect(style: UIBlurEffect.Style.dark)
let blurEffectView = UIVisualEffectView(effect: blurEffect)
blurEffectView.frame = view.bounds
blurEffectView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
view.addSubview(blurEffectView)

Here you can see result:

Or you can use this lib for that:

https://github.com/FlexMonkey/Blurable

The getElementsByClassName method is now natively supported by the most recent versions of Firefox, Safari, Chrome, IE and Opera, you could make a function to check if a native implementation is available, otherwise use the Dustin Diaz method:

function getElementsByClassName(node,classname) {
  if (node.getElementsByClassName) { // use native implementation if available
    return node.getElementsByClassName(classname);
  } else {
    return (function getElementsByClass(searchClass,node) {
        if ( node == null )
          node = document;
        var classElements = [],
            els = node.getElementsByTagName("*"),
            elsLen = els.length,
            pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)"), i, j;

        for (i = 0, j = 0; i < elsLen; i++) {
          if ( pattern.test(els[i].className) ) {
              classElements[j] = els[i];
              j++;
          }
        }
        return classElements;
    })(classname, node);
  }
}

Usage:

function toggle_visibility(className) {
   var elements = getElementsByClassName(document, className),
       n = elements.length;
   for (var i = 0; i < n; i++) {
     var e = elements[i];

     if(e.style.display == 'block') {
       e.style.display = 'none';
     } else {
       e.style.display = 'block';
     }
  }
}

If you want the form to be submitted on the same page then remove the action from the form attributes.

<form method="POST" name="myform">
 <!-- Your HTML code Here -->
</form>

However, If you want to reload the page or redirect the page after submitting the form from another file then you call this function in php and it will redirect the page in 0 seconds. Also, You can use the header if you want to, just make sure you don't have any content before using the header

 function page_redirect($location)
 {
   echo '<META HTTP-EQUIV="Refresh" Content="0; URL='.$location.'">';
   exit; 
 }

 // I want the page to go to google.
 // page_redirect("http://www.google.com")

The way to do this is to run the following command:

bundle update --source gem-name

I've uploaded my simple but fast implementation of a Guid class for ObjC here: obj-c GUID

Guid* guid = [Guid randomGuid];
NSLog("%@", guid.description);

It can parse to and from various string formats as well.

Faced with this issue when determining an environment, I came up with the following one-liner:

string ActiveEnvironment = localEnv.Contains("LIVE") ? "LIVE" : (localEnv.Contains("TEST") ? "TEST" : (localEnv.Contains("LOCAL") ? "LOCAL" : null));

That way, if it can't find anything in the provided string that matches the "switch" conditions, it gives up and returns null. This could easily be amended to return a different value.

It's not strictly a switch, more a cascading if statement but it's neat and it worked.

Using Alt + Shift + o It works for me!

An example (axios_example.js) using Axios in Node.js:

const axios = require('axios');
const express = require('express');
const app = express();
const port = process.env.PORT || 5000;

app.get('/search', function(req, res) {
    let query = req.query.queryStr;
    let url = `https://your.service.org?query=${query}`;

    axios({
        method:'get',
        url,
        auth: {
            username: 'xxxxxxxxxxxxx',
            password: 'xxxxxxxxxxxxx'
        }
    })
    .then(function (response) {
        res.send(JSON.stringify(response.data));
    })
    .catch(function (error) {
        console.log(error);
    });
});

var server = app.listen(port);

Be sure in your project directory you do:

npm init
npm install express
npm install axios
node axios_example.js

You can then test the Node.js REST API using your browser at: http://localhost:5000/search?queryStr=xxxxxxxxx

Ref: https://github.com/axios/axios

select (select count() from tab1 where field like 'value') + (select count() from tab2 where field like 'value') count

See if this works for you... In this code, I had 3 2-dimensional arrays, called red,green and blue. Each one was of size [width][height], and each element corresponded to a pixel - I hope this makes sense!

FILE *f;
unsigned char *img = NULL;
int filesize = 54 + 3*w*h;  //w is your image width, h is image height, both int

img = (unsigned char *)malloc(3*w*h);
memset(img,0,3*w*h);

for(int i=0; i<w; i++)
{
    for(int j=0; j<h; j++)
    {
        x=i; y=(h-1)-j;
        r = red[i][j]*255;
        g = green[i][j]*255;
        b = blue[i][j]*255;
        if (r > 255) r=255;
        if (g > 255) g=255;
        if (b > 255) b=255;
        img[(x+y*w)*3+2] = (unsigned char)(r);
        img[(x+y*w)*3+1] = (unsigned char)(g);
        img[(x+y*w)*3+0] = (unsigned char)(b);
    }
}

unsigned char bmpfileheader[14] = {'B','M', 0,0,0,0, 0,0, 0,0, 54,0,0,0};
unsigned char bmpinfoheader[40] = {40,0,0,0, 0,0,0,0, 0,0,0,0, 1,0, 24,0};
unsigned char bmppad[3] = {0,0,0};

bmpfileheader[ 2] = (unsigned char)(filesize    );
bmpfileheader[ 3] = (unsigned char)(filesize>> 8);
bmpfileheader[ 4] = (unsigned char)(filesize>>16);
bmpfileheader[ 5] = (unsigned char)(filesize>>24);

bmpinfoheader[ 4] = (unsigned char)(       w    );
bmpinfoheader[ 5] = (unsigned char)(       w>> 8);
bmpinfoheader[ 6] = (unsigned char)(       w>>16);
bmpinfoheader[ 7] = (unsigned char)(       w>>24);
bmpinfoheader[ 8] = (unsigned char)(       h    );
bmpinfoheader[ 9] = (unsigned char)(       h>> 8);
bmpinfoheader[10] = (unsigned char)(       h>>16);
bmpinfoheader[11] = (unsigned char)(       h>>24);

f = fopen("img.bmp","wb");
fwrite(bmpfileheader,1,14,f);
fwrite(bmpinfoheader,1,40,f);
for(int i=0; i<h; i++)
{
    fwrite(img+(w*(h-i-1)*3),3,w,f);
    fwrite(bmppad,1,(4-(w*3)%4)%4,f);
}

free(img);
fclose(f);

Hi Guys if u are using angular plugin in eclipse that time is plugin is limited periods after that if u want to used this plugin then u pay it so i suggest to you used webstrome and visual code ide that are very easy and comfort to used so take care if u start and developed a angular app using eclipse

Is the drive E a mapped drive? Then, it can be created by another account other than the user account. This may be the cause of the error.

To use getSingleResult on a TypedQuery you can use

query.setFirstResult(0);
query.setMaxResults(1);
result = query.getSingleResult();

Try with padding and line-height -

input[type="text"]{ padding: 20px 10px; line-height: 28px; }

You mean two classes? "Chain" the selectors (no spaces between them):

.class1.class2 {
    /* style here */
}

This selects all elements with class1 that also have class2.

In your case:

li.left.ui-class-selector {

}

Official documentation : CSS2 class selectors.

As akamike points out a problem with this method in Internet Explorer 6 you might want to read this: Use double classes in IE6 CSS?

As Charles Duffey has stated, XML parsers are best parsed with a proper XML parsing tools. For one time job the following should work.

grep -oPm1 "(?<=<title>)[^<]+"

Test:

$ echo "$data"
<item> 
  <title>15:54:57 - George:</title>
  <description>Diane DeConn? You saw Diane DeConn!</description> 
</item> 
<item> 
  <title>15:55:17 - Jerry:</title> 
  <description>Something huh?</description>
$ title=$(grep -oPm1 "(?<=<title>)[^<]+" <<< "$data")
$ echo "$title"
15:54:57 - George:

Dec 25th, 2019 :

Whoever facing issue regarding Image not showing in Flutter , let me give you simple checkpoints :

1. Image.asset('assets/images/photo1.png'); -- here make sure dont use / (forward slash ) before assets.
2. YAML file always be clear dont use space , instead use TAB.
3. YAML file add entries for assets. as mentioned in above comment.

First point is very important

Using final in a method parameter has nothing to do with what happens to the argument on the caller side. It is only meant to mark it as not changing inside that method. As I try to adopt a more functional programming style, I kind of see the value in that.

The "IIS APPPOOL\AppPoolName" will work, but as mentioned previously, it does not appear to be a valid AD name so when you search for it in the "Select User or Group" dialog box, it won't show up (actually, it will find it, but it will think its an actual system account, and it will try to treat it as such...which won't work, and will give you the error message about it not being found).

How I've gotten it to work is:

1. In SQL Server Management Studio, look for the Security folder (the security folder at the same level as the Databases, Server Objects, etc. folders...not the security folder within each individual database)
2. Right click logins and select "New Login"
3. In the Login name field, type IIS APPPOOL\YourAppPoolName - do not click search
4. Fill whatever other values you like (i.e., authentication type, default database, etc.)
5. Click OK

As long as the AppPool name actually exists, the login should now be created.

Here is how I fixed this on my Windows (7) Dev. environment. I assume the following...

• You are Running Command Prompt, Git Bash, Cmder or your favorite Terminal, as an Administrator by right clicking
• Privileges Permissions have been granted for Read/Write (i.e chmod -777)

Okay, let's get to it:

1. Update any packages where a version check is returning a warning ("npm WARN"..) for example...

   npm update -g npm

   npm update -g graceful-fs

2. Next we want to force a cache clean. This is flagged by an '--f' or '-f'..

   npm cache clean --f

3. In Widows Explorer search for the following path

%APPDATA%\npm-cache

And Delete it's contents

4. Start a fresh instance of your Terminal, remembering to 'Right-Click' and 'Run as Administrator', install the packages again.

Hope this helps someone!!

Use a Pair as keys for the HashMap. JDK has no Pair, but you can either use a 3rd party libraray such as http://commons.apache.org/lang or write a Pair taype of your own.

Try out below drawable file. Create file named "circle" in your res/drawable folder and copy below code:

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

    <solid android:color="#FFFFFF" />

    <stroke
        android:width="1dp"
        android:color="#4a6176" />

    <padding
        android:left="10dp"
        android:right="10dp"
        android:top="10dp"
        android:bottom="10dp"
         />

    <corners android:radius="10dp" />

</shape>

Apply it in your TextView as below:

<TextView
        android:id="@+id/tvSummary1"
        android:layout_width="270dp"
        android:layout_height="60dp"
        android:text="Hello World" 
        android:gravity="left|center_vertical"
        android:background="@drawable/round_bg">

    </TextView>

Use a DataTrigger:

<DataGrid ItemsSource="{Binding YourItemsSource}">
    <DataGrid.RowStyle>
        <Style TargetType="DataGridRow"> 
            <Style.Triggers>
                <DataTrigger Binding="{Binding State}" Value="State1">
                    <Setter Property="Background" Value="Red"></Setter>
                </DataTrigger>
                <DataTrigger Binding="{Binding State}" Value="State2">
                    <Setter Property="Background" Value="Green"></Setter>
                </DataTrigger>
            </Style.Triggers>
        </Style>
    </DataGrid.RowStyle>
</DataGrid>

It's permission problem. It is not "classic" read/write permissions of apache user, but selinux one.

Apache cannot write to files labeled as httpd_sys_content_t they can be only read by apache.

You have 2 possibilities:

1. label svn repository files as httpd_sys_content_rw_t:

   chcon -R -t httpd_sys_content_rw_t /path/to/your/svn/repo
   

2. set selinux boolean httpd_unified --> on

   setsebool -P httpd_unified=1
   

I prefer 2nd possibility. You can play also with other selinux booleans connected with httpd:

getsebool -a | grep httpd

I just wanted to add that you should also check if your password is expired.

See Postgres password authentication fails for details.

if you just commit your deleted file and push. It should then be removed from the remote repo.

if you want to set value than you can do the same in some function on click or on some event fire.

also you can get value using ViewChild using local variable like this

<input type='text' id='loginInput' #abc/>

and get value like this

this.abc.nativeElement.value

here is working example

Update

okay got it , you have to use ngAfterViewInit method of angualr2 for the same like this

ngAfterViewInit(){
    document.getElementById('loginInput').value = '123344565';
  }

ngAfterViewInit will not throw any error because it will render after template loading

I think you just need to remove the space. i.e.

$(".myclass[reference=12345]").css('border', '#000 solid 1px');

There is a fiddle here http://jsfiddle.net/xXEHY/

I'm struggling with the same here. But I can show you what I've got doing some research. Basically, you first start adding the page @Output event in the foo.template.ts:

 <md-paginator #paginator
                [length]="length"
                [pageIndex]="pageIndex"
                [pageSize]="pageSize"
                [pageSizeOptions]="[5, 10, 25, 100]"
                (page)="pageEvent = getServerData($event)"
                >
 </md-paginator>

And later, you have to add the pageEvent attribute in the foo.component.ts class and the others to handle paginator requirements:

pageEvent: PageEvent;
datasource: null;
pageIndex:number;
pageSize:number;
length:number;

And add the method that will fetch the server data:

ngOnInit() {
   getServerData(null) ...
}

public getServerData(event?:PageEvent){
  this.fooService.getdata(event).subscribe(
    response =>{
      if(response.error) {
        // handle error
      } else {
        this.datasource = response.data;
        this.pageIndex = response.pageIndex;
        this.pageSize = response.pageSize;
        this.length = response.length;
      }
    },
    error =>{
      // handle error
    }
  );
  return event;
}

So, basically every time you click the paginator, you'll activate getServerData(..) method that will call foo.service.ts getting all data required. In this case, you do not need to handle nextPage and nextXXX events because it will be automatically calculated upon view rendering.

Hope this can help you. Let me know if you had success. =]

I had the same problem what caused it was that I already had created a pod from the docker image via the .yml file, however I mistyped the name, i.e test-app:1.0.1 when I needed test-app:1.0.2 in my .yml file. So I did kubectl delete pods --all to remove the faulty pod then redid the kubectl create -f name_of_file.yml which solved my problem.

Not exactly the case of actual context of this question, but this exception can be reproduced by the next query:

update users set dismissal_reason='he can't and don't want' where userid=123

Single quotes in words can't and don't broke the string. In case string have only one inside quote e.g. 'he don't want' oracle throws more relevant quoted string not properly terminated error, but in case of two SQL command not properly ended is thrown.

Summary: check your query for double single quotes.

I have wasted a lot of time figuring out what is wrong when I iterate through DOMElements with the code in the accepted answer. This is what worked for me, otherwise every second element disappears from the document:

_getGpxString: function(node) {
          clone = node.cloneNode(true);
          var tmp = document.createElement("div");
          tmp.appendChild(clone);
          return tmp.innerHTML;
        },

Is canny your own function? Do you use Canny from OpenCV inside it? If yes check if you feed suitable argument for Canny - first Canny argument should meet following criteria:

• type: <type 'numpy.ndarray'>
• dtype: dtype('uint8')
• being single channel or simplyfing: grayscale, that is 2D array, i.e. its shape should be 2-tuple of ints (tuple containing exactly 2 integers)

You can check it by printing respectively

type(variable_name)
variable_name.dtype
variable_name.shape

Replace variable_name with name of variable you feed as first argument to Canny.

You need to load your image as bitmap:

 Resources res = getResources();
 Bitmap bitmap = BitmapFactory.decodeResource(res, R.drawable.your_image);

Then make the bitmap mutable and create a canvas over it:

Canvas canvas = new Canvas(bitmap.copy(Bitmap.Config.ARGB_8888, true));

You then can draw on the canvas.

Using hardcoded indexes itself can be a mess.

In order to avoid that, Python offers a built-in object slice().

string = "my company has 1000$ on profit, but I lost 500$ gambling."

If we want to know how many money I got left.

Normal solution:

final = int(string[15:19]) - int(string[43:46])
print(final)
>>>500

Using slices:

EARNINGS = slice(15, 19)
LOSSES = slice(43, 46)
final = int(string[EARNINGS]) - int(string[LOSSES])
print(final)
>>>500

Using slice you gain readability.

Change

OnClientClick="return validateView();ShowDiv1();">

to

OnClientClick="javascript: if(validateView()) ShowDiv1();">

Firebug is one of the most popular tools for this purpose.

int main () {

  string str1="123";
  string str2 = str1.substr (0,str1.length()-1);

  cout<<str2; // output: 12

  return 0;
}

This issue has been fixed in m2e 1.5.0 which is available for Eclipse Kepler (4.3) and Luna (4.4)

Please see https://bugs.eclipse.org/bugs/show_bug.cgi?id=374332#c14

The problem is caused by the fact that STS (the Spring IDE/Eclipse), as well Eclipse and other Eclipse based IDE's, use the m2e(clipse) plugin but that eclipse:eclipse has been probably been run on the project. When m2e encounters a "var" .classpath entry, it throws this error.

The update sites are specified at the following url:
http://eclipse.org/m2e/m2e-downloads.html

If you can't use m2e 1.5.0 for any reason, then :

1. Disable the maven nature for the project (via the right-click menu)

2. Run mvn eclipse:clean (while your project is open in STS/eclipse). Depending on the timing, you might need to do a refresh or two on the project before re-enabling the maven nature. You should be able to see that your project has lost it's Maven nature. (The eclipse:clean goal just deletes the .project, .classpath and .settings/ files/directories. You can also just remove those files (again while the project is open) instead of running mvn eclipse:clean.)

3. Re-enable the maven nature.
   (Most of the time, this can be done by right-clicking on the project in question in the package explorer pane, and then choosing 'Configure'-> 'Convert to Maven Project')

Add jQuery and make sure only one link for jQuery cause more than one doesn't work...

Firebug shows this correctly because your Browser automagically fixes the bad markup for you. This behaviour is not specified anywhere and can (will) vary from browser to browser. Those tags are required by the DOCTYPE you're using and should not be omitted.

The html element is the root element of every html page. If you look at all other elements' description it says where an element can be used (and almost all elements require either head or body).

As an addendum: Before HTML 5 while a div inside a li is valid, a div inside a dl, dd, or dt is not!

I had a similar problem - and it popped up quite randomly. Perhaps something was corrupt in the build files, but I ended up fixing it by cleaning the project first then rebuilding.

So in addition to the other responses given:

What sort of things can cause these errors? Something corrupt in the build file.

How do I debug them? Cleaning the project and rebuilding. If it's fixed, this was likely the problem.

Replace(@"\""", "")

You have to use double-doublequotes to escape double-quotes within a verbatim string.

There's a section on Bringing Up a Popup Menu in the How to Use Menus article of The Java Tutorials which explains how to use the JPopupMenu class.

The example code in the tutorial shows how to add MouseListeners to the components which should display a pop-up menu, and displays the menu accordingly.

(The method you describe is fairly similar to the way the tutorial presents the way to show a pop-up menu on a component.)

Looks like divs will not go outside of their body's width. Even within another div.

I threw this up to test (without a doctype though) and it does not work as thought.

.slideContainer {_x000D_
    overflow-x: scroll;_x000D_
}_x000D_
.slide {_x000D_
    float: left;_x000D_
}

<div class="slideContainer">_x000D_
    <div class="slide" style="background: #f00">Some content Some content Some content Some content Some content Some content</div>_x000D_
    <div class="slide" style="background: #ff0">More content More content More content More content More content More content</div>_x000D_
    <div class="slide" style="background: #f0f">Even More content! Even More content! Even More content!</div>_x000D_
</div>

What i am thinking is that the inner div's could be loaded through an iFrame, since that is another page and its content could be very wide.

try {
    File img = new File("somefile.png");
    BufferedImage image = ImageIO.read(img ); 
    System.out.println(image);
} catch (IOException e) { 
    e.printStackTrace(); 
}

Example output for my image file:

BufferedImage@5d391d: type = 5 ColorModel: #pixelBits = 24 
numComponents = 3 color 
space = java.awt.color.ICC_ColorSpace@50a649 
transparency = 1 
has alpha = false 
isAlphaPre = false 
ByteInterleavedRaster: 
width = 800 
height = 600 
#numDataElements 3 
dataOff[0] = 2

You can run System.out.println(object); on just about any object and get some information about it.

I tried the below code,

    function executeQuery() {
  $.ajax({
    url: 'url/path/here',
    success: function(data) {
      // do something with the return value here if you like
    }
  });
  setTimeout(executeQuery, 5000); // you could choose not to continue on failure...
}

$(document).ready(function() {
  // run the first time; all subsequent calls will take care of themselves
  setTimeout(executeQuery, 5000);
});

This didn't work as expected for the specified interval,the page didn't load completely and the function was been called continuously. Its better to call setTimeout(executeQuery, 5000); outside executeQuery() in a separate function as below,

function executeQuery() {
  $.ajax({
    url: 'url/path/here',
    success: function(data) {
      // do something with the return value here if you like
    }
  });
  updateCall();
}

function updateCall(){
setTimeout(function(){executeQuery()}, 5000);
}

$(document).ready(function() {
  executeQuery();
});

This worked exactly as intended.

I prefer to do this via a script nowadays

REM install the needed Windows IIS features for WCF
dism /Online /Enable-Feature /FeatureName:WAS-WindowsActivationService
dism /Online /Enable-Feature /FeatureName:WAS-ProcessModel
dism /Online /Enable-Feature /FeatureName:WAS-NetFxEnvironment
dism /Online /Enable-Feature /FeatureName:WAS-ConfigurationAPI
dism /Online /Enable-Feature /FeatureName:WCF-HTTP-Activation
dism /Online /Enable-Feature /FeatureName:WCF-HTTP-Activation45

REM Feature Install Complete
pause

Make sure to import component in declarations array

@NgModule({
  declarations: [ExampleComponent],
  imports: [
      CommonModule,
      ExampleRoutingModule,
      ReactiveFormsModule
  ]
})

Just access the element and append it to the value.

<input
     type="button" 
     onclick="document.getElementById('myTextArea').value += '•'" 
     value="Add •">

See a live demo.

For the sake of keeping things simple, I haven't written unobtrusive JS. For a production system you should.

Also it needs to be a UTF8 character.

Browsers generally submit forms using the encoding they received the page in. Serve your page as UTF-8 if you want UTF-8 data submitted back.

You can either write a spin loop (a loop that just loops for a long period of time performing some sort of computation to delay the function) or use:

setTimeout("Func1()", 3000);

This will call 'Func1()' after 3 seconds.

Edit:

Credit goes to the commenters, but you can pass anonymous functions to setTimeout.

setTimeout(function() {
   //Do some stuff here
}, 3000);

This is much more efficient and does not invoke javascript's eval function.

I know this isn't as elegant as the other posts, but it's a more straightforward xaml/codebehind example of how to accomplish the same thing.

Xaml:

<StackPanel Orientation="Horizontal">
   <TextBox Name="TextBox01" VerticalAlignment="Top" HorizontalAlignment="Left" Width="70" />
   <Button Name="Button01" VerticalAlignment="Top" HorizontalAlignment="Left" Margin="10,0,0,0" />
</StackPanel>

CodeBehind:

Private Sub Window1_Loaded(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles Me.Loaded

        Button01.IsEnabled = False
        Button01.Content = "I am Disabled"

End Sub

Private Sub TextBox01_TextChanged(ByVal sender As Object, ByVal e As System.Windows.Controls.TextChangedEventArgs) Handles TextBox01.TextChanged

        If TextBox01.Text.Trim.Length > 0 Then
            Button01.IsEnabled = True
            Button01.Content = "I am Enabled"
        Else
            Button01.IsEnabled = False
            Button01.Content = "I am Disabled"
        End If

End Sub

If you use a TFS online(Cloud version) and you want to transform the App.Config in a project, you can do the following without installing any extra tools. From VS => Unload the project => Edit project file => Go to the bottom of the file and add the following:

<UsingTask TaskName="TransformXml" AssemblyFile="$(MSBuildExtensionsPath)\Microsoft\VisualStudio\v$(VisualStudioVersion)\Web\Microsoft.Web.Publishing.Tasks.dll" />
<Target Name="AfterBuild" Condition="Exists('App.$(Configuration).config')">
<TransformXml Source="App.config" Transform="App.$(Configuration).config" Destination="$(OutDir)\$(AssemblyName).dll.config" />

AssemblyFile and Destination works for local use and TFS online(Cloud) server.

IfLoop's answer (and MatToufoutu's comment) work great for standalone variables, but I wanted to provide an answer for anyone trying to do something similar for individual entries in lists, tuples, or dictionaries.

Dictionaries

existing_dict = {"spam": 1, "eggs": 2}
existing_dict["foo"] = existing_dict["foo"] if "foo" in existing_dict else 3

Returns {"spam": 1, "eggs": 2, "foo": 3}

Lists

existing_list = ["spam","eggs"]
existing_list = existing_list if len(existing_list)==3 else 
                existing_list + ["foo"]

Returns ["spam", "eggs", "foo"]

Tuples

existing_tuple = ("spam","eggs")
existing_tuple = existing_tuple if len(existing_tuple)==3 else 
                 existing_tuple + ("foo",)

Returns ("spam", "eggs", "foo")

(Don't forget the comma in ("foo",) to define a "single" tuple.)

The lists and tuples solution will be more complicated if you want to do more than just check for length and append to the end. Nonetheless, this gives a flavor of what you can do.

I'm using Jetbrains Rider and it was a hassle copying the results from above examples to re-execute because it seemed to wrap it all in JSON. This joins them into a single statement that was easier to run

select string_agg('drop table if exists "' || tablename || '" cascade', ';') 
from pg_tables where schemaname != $$pg_catalog$$ and tableName like $$rm_%$$

I have a solution that works well for me. It consists of a local jenkins running in docker and a git web hook to trigger the pipeline in the local jenkins on every commit. You no longer need to push to your github or bitbucket repository to test the pipeline.

This has only been tested in a linux environment.

It is fairly simple to make this work although this instruction is a tad long. Most steps are there.

This is what you need

• Docker installed and working. This is not part of this instruction.
• A Jenkins running in docker locally. Explained how below.
  • The proper rights (ssh access key) for your local Jenkins docker user to pull from your local git repo. Explained how below.
  • A Jenkins pipeline project that pulls from your local git repository. Explained below.
  • A git user in your local Jenkins with minimal rights. Explained below.
• A git project with a post-commit web hook that triggers the pipeline project. Explained below.

This is how you do it

Jenkins Docker

Create a file called Dockerfile in place of your choosing. I'm placing it in /opt/docker/jenkins/Dockerfile fill it with this:

FROM jenkins/jenkins:lts
USER root
RUN apt-get -y update && apt-get -y upgrade
# Your needed installations goes here
USER jenkins

Build the local_jenkins image

This you will need to do only once or after you have added something to the Dockerfile.

$ docker build -t local_jenkins /opt/docker/jenkins/

Start and restart local_jenkins

From time to time you want to start and restart jenkins easily. E.g. after a reboot of your machine. For this I made an alias that I put in .bash_aliases in my home folder.

$ echo "alias localjenkinsrestart='docker stop jenkins;docker rm jenkins;docker run --name jenkins -i -d -p 8787:8080 -p 50000:50000 -v /opt/docker/jenkins/jenkins_home:/var/jenkins_home:rw local_jenkins'" >> ~/.bash_aliases
$ source .bash_aliases  # To make it work

Make sure the /opt/docker/jenkins/jenkins_home folder exists and that you have user read and write rights to it.

To start or restart your jenkins just type:

$ localjenkinsrestart

Everything you do in your local jenkins will be stored in the folder /opt/docker/jenkins/jenkins_home and preserved between restarts.

Create a ssh access key in your docker jenkins

This is a very important part for this to work. First we start the docker container and create a bash shell to it:

$ localjenkinsrestart
$ docker exec -it jenkins /bin/bash

You have now entered into the docker container, this you can see by something like jenkins@e7b23bad10aa:/$ in your terminal. The hash after the @ will for sure differ.

Create the key

jenkins@e7b23bad10aa:/$ ssh-keygen

Press enter on all questions until you get the prompt back

Copy the key to your computer. From within the docker container your computer is 172.17.0.1 should you wonder.

jenkins@e7b23bad10aa:/$ ssh-copy-id [email protected]

user = your username and 172.17.0.1 is the ip address to your computer from within the docker container.

You will have to type your password at this point.

Now lets try to complete the loop by ssh-ing to your computer from within the docker container.

jenkins@e7b23bad10aa:/$ ssh [email protected]

This time you should not need to enter you password. If you do, something went wrong and you have to try again.

You will now be in your computers home folder. Try ls and have a look.

Do not stop here since we have a chain of ssh shells that we need to get out of.

$ exit
jenkins@e7b23bad10aa:/$ exit

Right! Now we are back and ready to continue.

Install your Jenkins

You will find your local Jenkins in your browser at http://localhost:8787.

First time you point your browser to your local Jenkins your will be greated with a Installation Wizard. Defaults are fine, do make sure you install the pipeline plugin during the setup though.

Setup your jenkins

It is very important that you activate matrix based security on http://localhost:8787/configureSecurity and give yourself all rights by adding yourself to the matrix and tick all the boxes. (There is a tick-all-boxes icon on the far right)

• Select Jenkins’ own user database as the Security Realm
• Select Matrix-based security in the Authorization section
• Write your username in the field User/group to add: and click on the [ Add ] button
• In the table above your username should pop up with a people icon next to it. If it is crossed over you typed your username incorrectly.
• Go to the far right of the table and click on the tick-all-button or manually tick all the boxes in your row.
• Please verify that the checkbox Prevent Cross Site Request Forgery exploits is unchecked. (Since this Jenkins is only reachable from your computer this isn't such a big deal)
• Click on [ Save ] and log out of Jenkins and in again just to make sure it works. If it doesn't you have to start over from the beginning and emptying the /opt/docker/jenkins/jenkins_home folder before restarting

Add the git user

We need to allow our git hook to login to our local Jenkins with minimal rights. Just to see and build jobs is sufficient. Therefore we create a user called git with password login.

Direct your browser to http://localhost:8787/securityRealm/addUser and add git as username and login as password. Click on [ Create User ].

Add the rights to the git user

Go to the http://localhost:8787/configureSecurity page in your browser. Add the git user to the matrix:

• Write git in the field User/group to add: and click on [ Add ]

Now it is time to check the boxes for minimal rights to the git user. Only these are needed:

• overall:read
• job:build
• job:discover
• job:read

Make sure that the Prevent Cross Site Request Forgery exploits checkbox is unchecked and click on [ Save ]

Create the pipeline project

We assume we have the username user and our git enabled project with the Jenkinsfile in it is called project and is located at /home/user/projects/project

In your http://localhost:8787 Jenkins add a new pipeline project. I named it hookpipeline for reference.

• Click on New Item in the Jenkins menu
• Name the project hookpipeline
• Click on Pipeline
• Click [ OK ]
• Tick the checkbox Poll SCM in the Build Triggers section. Leave the Schedule empty.
• In the Pipeline section:
  • select Pipeline script from SCM
  • in the Repository URL field enter [email protected]:projects/project/.git
  • in the Script Path field enter Jenkinsfile
• Save the hookpipeline project
• Build the hookpipeline manually once, this is needed for the Poll SCM to start working.

Create the git hook

Go to the /home/user/projects/project/.git/hooks folder and create a file called post-commit that contains this:

#!/bin/sh
BRANCHNAME=$(git rev-parse --abbrev-ref HEAD)
MASTERBRANCH='master'

curl -XPOST -u git:login http://localhost:8787/job/hookpipeline/build
echo "Build triggered successfully on branch: $BRANCHNAME"

Make this file executable:

$ chmod +x /home/user/projects/project/.git/hooks/post-commit

Test the post-commit hook:

$ /home/user/projects/project/.git/hooks/post-commit

Check in Jenkins if your hookpipeline project was triggered.

Finally make some arbitrary change to your project, add the changes and do a commit. This will now trigger the pipeline in your local Jenkins.

Happy Days!

Ok... this took me way too long. The sql-management studio tool is just not up to simple things like this (which I've noticed before when looking for where to set the timeout on queries, and it was done in 4 different locations)

I downloaded some other sql editor package (sql maestro in my case). And behold it includes a blob editor where you can look at blobs, and load new blobs into these field.

thanks for the input!

I know its quite late to answer this, but I guess it will help anyone ahead.

Well using CSS3 FlexBox. It can be acheived. Make you header as display:flex and divide its entire width into 3 parts. In the first part I have placed the logo, the searchbar in second part and buttons container in last part. apply justify-content: between to the header container and flex-grow:1 to the searchbar. That's it. The sample code is below.

#header {_x000D_
  background-color: #323C3E;_x000D_
  justify-content: space-between;_x000D_
  display: flex;_x000D_
}_x000D_
_x000D_
#searchBar, img{_x000D_
  align-self: center;_x000D_
}_x000D_
_x000D_
#searchBar{_x000D_
  flex-grow:1;_x000D_
  background-color: orange;_x000D_
  padding: 10px;_x000D_
}_x000D_
_x000D_
#searchBar input {_x000D_
  width: 100%;_x000D_
}_x000D_
_x000D_
.button {_x000D_
  padding: 22px;_x000D_
}_x000D_
_x000D_
.buttonsHolder{_x000D_
  display:flex;_x000D_
}

<div id="header" class="d-flex justify-content-between">_x000D_
    <img src="img/logo.png" />_x000D_
    <div id="searchBar">_x000D_
      <input type="text" />_x000D_
    </div>_x000D_
    <div class="buttonsHolder">_x000D_
      <div class="button orange inline" id="myAccount">_x000D_
        My Account_x000D_
      </div>_x000D_
      <div class="button red inline" id="basket">_x000D_
        Basket (2)_x000D_
      </div>_x000D_
    </div>_x000D_
</div>

I also had same issue .I build it trough this way.I used struts 2 framework.

  <script type="text/javascript">

  $(document).ready(function () {
  var year = (new Date).getFullYear();
  $( "#effectiveDateId" ).datepicker({dateFormat: "mm/dd/yy", maxDate: 
  0});

  });


  </script>

        <s:textfield name="effectiveDate" cssClass="input-large" 
   key="label.warrantRateMappingToPropertyTypeForm.effectiveDate" 
   id="effectiveDateId" required="true"/>

This worked for me.

not really sure what you're doing exactly via the context of your code but...

why make the listOfTopicAuthors variable at all?

List<String> list = Arrays.asList((....).toArray( new String[0] ) );

the "...." represents however your set came into play, whether it's new or came from another location.

i found that my google payment account was not activated. i activated it and the error was solved. link for vitrification: google account verification

Maybe with reflection tricks around the class android.server.LocationManagerService.

Also, there is a method (since API 8) android.provider.Settings.Secure.setLocationProviderEnabled

public static bool CompareDateTimes(this DateTime firstDate, DateTime secondDate) 
{
   return firstDate.Day == secondDate.Day && firstDate.Month == secondDate.Month && firstDate.Year == secondDate.Year;
}

Once you've done this

group p by p.SomeId into pg  

you no longer have access to the range variables used in the initial from. That is, you can no longer talk about p or bp, you can only talk about pg.

Now, pg is a group and so contains more than one product. All the products in a given pg group have the same SomeId (since that's what you grouped by), but I don't know if that means they all have the same BaseProductId.

To get a base product name, you have to pick a particular product in the pg group (As you are doing with SomeId and CountryCode), and then join to BaseProducts.

var result = from p in Products                         
 group p by p.SomeId into pg                         
 // join *after* group
 join bp in BaseProducts on pg.FirstOrDefault().BaseProductId equals bp.Id         
 select new ProductPriceMinMax { 
       SomeId = pg.FirstOrDefault().SomeId, 
       CountryCode = pg.FirstOrDefault().CountryCode, 
       MinPrice = pg.Min(m => m.Price), 
       MaxPrice = pg.Max(m => m.Price),
       BaseProductName = bp.Name  // now there is a 'bp' in scope
 };

That said, this looks pretty unusual and I think you should step back and consider what you are actually trying to retrieve.

For TSQL I like to encapsulate case statements in an outer apply. This prevents me from having to have the case statement written twice, allows reference to the case statement by alias in future joins and avoids the need for positional references.

select oa.day, 
model.name, 
attempt.type, 
oa.result
COUNT(*) MyCount 
FROM attempt attempt, prod_hw_id prod_hw_id, model model
WHERE time >= '2013-11-06 00:00:00'  
AND time < '2013-11-07 00:00:00'
AND attempt.hard_id = prod_hw_id.hard_id
AND prod_hw_id.model_id = model.model_id
OUTER APPLY (
    SELECT CURRENT_DATE-1 AS day,
     CASE WHEN attempt.result = 0 THEN 0 ELSE 1 END result
    ) oa    
group by oa.day, 
model.name, 
attempt.type, 
oa.result
order by model.name, attempt.type, oa.result;

Last Updated Version is with xCode 6.1

class StampInfoTableViewCell: UITableViewCell{


@IBOutlet weak var stampDate: UILabel!
@IBOutlet weak var numberText: UILabel!


override init?(style: UITableViewCellStyle, reuseIdentifier: String?) {
    super.init(style: style, reuseIdentifier: reuseIdentifier)
}

required init(coder aDecoder: NSCoder) {
    //fatalError("init(coder:) has not been implemented")
    super.init(coder: aDecoder)
}

override func awakeFromNib() {
    super.awakeFromNib()
}

override func setSelected(selected: Bool, animated: Bool) {
    super.setSelected(selected, animated: animated)
}
}

The approach you should take is to install pip for Python 3.2.

You do this in the following way:

$ curl -O https://bootstrap.pypa.io/get-pip.py
$ sudo python3.2 get-pip.py

Then, you can install things for Python 3.2 with pip-3.2, and install things for Python 2-7 with pip-2.7. The pip command will end up pointing to one of these, but I'm not sure which, so you will have to check.

If someone views on my answer, you maybe in this condition:

1. Trying to get a map screenshot in canvas using openlayers (version >= 3)
2. And viewed the example of exporting map
3. Using ol.source.XYZ to render map layer

Bingo!

Using ol.source.XYZ.crossOrigin = 'Anonymous' to solve your confuse. Or like following code:

     var baseLayer = new ol.layer.Tile({
         name: 'basic',
         source: new ol.source.XYZ({
             url: options.baseMap.basic,
             crossOrigin: "Anonymous"
         })
     });

Here's a minor update to the solution provided by Dave Sexton. Many times you need multiple filters. The Filter parameter can only take a single string whereas the -Include parameter can take a string array. if you have a large file tree it also makes sense to only get the date to compare with once, not for each file. Here's my updated version:

$compareDate = (Get-Date).AddDays(-3)    
@(Get-ChildItem -Path c:\pstbak\*.* -Filter '*.pst','*.mdb' -Recurse | Where-Object { $_.LastWriteTime -gt $compareDate}).Count

In most browsers, there's a slightly more succinct way of removing an element from the DOM than calling .removeChild(element) on its parent, which is to just call element.remove(). In due course, this will probably become the standard and idiomatic way of removing an element from the DOM.

The .remove() method was added to the DOM Living Standard in 2011 (commit), and has since been implemented by Chrome, Firefox, Safari, Opera, and Edge. It was not supported in any version of Internet Explorer.

If you want to support older browsers, you'll need to shim it. This turns out to be a little irritating, both because nobody seems to have made a all-purpose DOM shim that contains these methods, and because we're not just adding the method to a single prototype; it's a method of ChildNode, which is just an interface defined by the spec and isn't accessible to JavaScript, so we can't add anything to its prototype. So we need to find all the prototypes that inherit from ChildNode and are actually defined in the browser, and add .remove to them.

Here's the shim I came up with, which I've confirmed works in IE 8.

(function () {
    var typesToPatch = ['DocumentType', 'Element', 'CharacterData'],
        remove = function () {
            // The check here seems pointless, since we're not adding this
            // method to the prototypes of any any elements that CAN be the
            // root of the DOM. However, it's required by spec (see point 1 of
            // https://dom.spec.whatwg.org/#dom-childnode-remove) and would
            // theoretically make a difference if somebody .apply()ed this
            // method to the DOM's root node, so let's roll with it.
            if (this.parentNode != null) {
                this.parentNode.removeChild(this);
            }
        };

    for (var i=0; i<typesToPatch.length; i++) {
        var type = typesToPatch[i];
        if (window[type] && !window[type].prototype.remove) {
            window[type].prototype.remove = remove;
        }
    }
})();

This won't work in IE 7 or lower, since extending DOM prototypes isn't possible before IE 8. I figure, though, that on the verge of 2015 most people needn't care about such things.

Once you've included them shim, you'll be able to remove a DOM element element from the DOM by simply calling

element.remove();

After trying grenade's answer you may use a temporary fix:

sudo bash -c 'echo 524288 > /proc/sys/fs/inotify/max_user_watches'

This does the same thing as kds's answer, but without persisting the changes. This is useful if the error just occurs after some uptime of your system.

For example this plugIns:

• https://github.com/rrethy/vim-illuminate

• https://github.com/itchyny/vim-cursorword

Just search for under cursor in vimawesome.com

The key, as clagccs mentioned, is that the highlight does NOT conflict with your search: https://vim.fandom.com/wiki/Auto_highlight_current_word_when_idle

Screen-shot of how it does NOT conflict with search: Notes:

• vim-illuminate highlights by default, in my screen-shot I switched to underline
• vim-illuminate highlights/underlines word under cursor by default, in my screen-shot I unset it
• my colorschemes are very grey-ish. Check yours to customize it too.

Simply:

/favicon.ico

The leading slash is important.

• Add import sys as the new topline
• You misspelled "executables" on the last line.
• Remove script = on last line.

The code should now look like:

import sys
from cx_Freeze import setup, Executable

setup(
    name = "On Dijkstra's Algorithm",
    version = "3.1",
    description = "A Dijkstra's Algorithm help tool.",
    executables = [Executable("Main.py", base = "Win32GUI")])

Use the command prompt (cmd) to run python setup.py build. (Run this command from the folder containing setup.py.) Notice the build parameter we added at the end of the script call.

Since you want matches highlighted, this is probably for human consumption (as opposed to piping to another program for instance), so a nice solution would be to use:

less -p <your-pattern> <your-file>

And if you don't care about case sensitivity:

less -i -p <your-pattern> <your-file>

This also has the advantage of having pages, which is nice when having to go through a long output

So, I had to format this Epoch Timestamp date format to a legit date format in my ReactJS project. I did the following:

1. import moment from 'moment' -- given you have moment js installed via NPM, if not head to this link

2. For Example :

   If I have an Epoch date timestamp like 1595314414299, then I try this in a console to see the result -

  var dateInEpochTS = 1595314414299
  var now = moment(dateInEpochTS).format('MMM DD YYYY h:mm A');
  var now2 = moment(dateInEpochTS).format('dddd, MMMM Do, YYYY h:mm:ss A');
  console.log("NOW");
  console.log(now);
  console.log("NOW2");
  console.log(now2);

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.27.0/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>

Expected Output

"NOW"
"Jul 21 2020 12:23 PM"
"NOW2"
"Tuesday, July 21st, 2020 12:23:34 PM"

The question is simple and the answer should be as simple. All the OP is asking is to merge the upstream origin/branchB into his current branch without switching branches.

TL;DR:

git fetch
git merge origin/branchB

The full answer:

git pull does a fetch + merge. It's roughly the the same the two commands below, where <remote> is usually origin (default), and the remote tracking branch starts with <remote>/ followed by the remote branch name:

git fetch [<remote>]
git merge @{u}

The @{u} notation is the configured remote tracking branch for the current branch. If branchB tracks origin/branchB then @{u} from branchB is the same as typing origin/branchB (see git rev-parse --help for more info).

Since you already merge with origin/branchB, all that is missing is the git fetch (which can run from any branch) to update that remote-tracking branch.

Note though that if there was any merge from the pull to include, you should rather merge branchB into branchA after having done a pull from branchB (and eventually push the changes to orign/branchB), but as long as they're fast-forward they would remain the same.

Keep in mind the local branchB will not be updated until you switch to it and do an actual pull, however as long as there are no local commits added to this branch it will just remain a fast-forward to the remote branch.

try this:

.topics tr { line-height: 14px; }

Notepad++ changed in the past couple of years, and it requires a few extra steps to set up a dark theme.

The answer by Amit-IO is good, but the example theme that is needed has stopped being maintained. The DraculaTheme is active. Just download the XML and put it in a themes folder. You may need Admin access in Windows.

C:\Users\YOUR_USER\AppData\Roaming\Notepad++\themes

https://draculatheme.com/notepad-plus-plus

Well, as it was said before, you can't GROUP by literals, I think that you are confused cause you can ORDER by 1, 2, 3. When you use functions as your columns, you need to GROUP by the same expression. Besides, the HAVING clause is wrong, you can only use what is in the agreggations. In this case, your query should be like this:

SELECT 
LEFT(SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000), PATINDEX('%[^0-9]%', SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000))-1),
qvalues.name,
qvalues.compound,
MAX(qvalues.rid) MaxRid
FROM batchinfo join qvalues 
ON batchinfo.rowid=qvalues.rowid
WHERE LEN(datapath)>4
GROUP BY 
LEFT(SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000), PATINDEX('%[^0-9]%', SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000))-1),
qvalues.name,
qvalues.compound

The second div is position: static (the default) so the z-index does not apply to it.

You need to position (set the position property to anything other than static, you probably want relative in this case) anything you want to give a z-index to.

preg_replace('/[\s]+/mu', ' ', $var);

\s already contains tabs and new lines, so this above regex appears to be sufficient.

For Windows, you can run this command directly if mysql/bin is in your path.

mysqladmin -u root -p shutdown

tl;dr

LocalDateTime.parse( 
    "2012-07-10 14:58:00.000000".replace( " " , "T" )  
)

Microseconds do not fit

You are attempting to squeeze a value with microseconds (six decimal digits) into a data type capable only of milliseconds resolution (three decimal digits). That is impossible.

Instead, use a data type with fine enough resolution. The java.time classes use nanosecond resolution (nine decimal digits).

Unzoned input does not fit a zoned type

You are attempting to put a value lacking any offset-from-UTC or time zone into a data type (Date) that only represents values in UTC. So you are adding information (UTC offset) not intended by the input.

Use an appropriate data type instead. Specifically, java.time.LocalDateTime.

Case-sensitive

Other Answers and Comments correctly explain that the formatting pattern codes are case-sensitive. So MM and mm have different effects.

Avoid legacy classes

The troublesome old date-time classes bundled with the earliest versions of Java are now legacy, supplanted by the java.time classes built into Java 8 and later.

ISO 8601

Your input strings nearly comply with the ISO 8601 standard formats. Replace the SPACE in the middle with a T to comply fully.

The java.time classes use the standard formats by default when parsing/generating strings. So no need to specify a formatting pattern.

Date-time objects have no "format"

and I need the resultant date object to be of the same format.

No, date-time objects do not have a "format". Do not conflate date-time objects with mere strings. Strings are inputs and outputs of the objects. The objects maintain their own internal representions of the date-time info, the details of which are irrelevant to us as calling programmers.

java.time

Your input lacks any indicator of offset-from-UTC or troublesome me zone. So we parse as a LocalDateTime objects which lacks those concepts.

String input = "2012-07-10 14:58:00.000000".replace( " " , "T" ) ;
LocalDateTime ldt = LocalDateTime.parse( input ) ;

Generating strings

To generate a String representing the value of your LocalDateTime:

• Call toString to get a String in standard ISO 8601 format.
• Use DateTimeFormatter for producing strings in either custom formats or automatically-localized formats.

Search Stack Overflow for more info as these topics have been covered many many times already.

ZonedDateTime

A LocalDateTime does not represent an exact point on the timeline.

To determine an actual moment, assign a time zone. For example noon in Kolkata India comes much earlier than noon in Paris France. Noon without a time zone could be happening at any point over a range of about 26-27 hours.

ZoneId z = ZoneId.of( "Asia/Kolkata" ) ;
ZonedDateTime zdt = ldt.atZone( z ) ;

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.* classes.

Where to obtain the java.time classes?

• Java SE 8, Java SE 9, and later
  • Built-in.
  • Part of the standard Java API with a bundled implementation.
  • Java 9 adds some minor features and fixes.
• Java SE 6 and Java SE 7
  • Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
• Android
  • Later versions of Android bundle implementations of the java.time classes.
  • For earlier Android, the ThreeTenABP project adapts ThreeTen-Backport (mentioned above). See How to use ThreeTenABP….

The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more.

With the web.xml configured they way you have in the question, in particular:

<servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/*</url-pattern>
</servlet-mapping>

ALL requests being made to your web app will be directed to the DispatcherServlet. This includes requests like /tasklist/, /tasklist/some-thing.html, /tasklist/WEB-INF/views/index.jsp.

Because of this, when your controller returns a view that points to a .jsp, instead of allowing your server container to service the request, the DispatcherServlet jumps in and starts looking for a controller that can service this request, it doesn't find any and hence the 404.

The simplest way to solve is to have your servlet url mapping as follows:

<servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

Notice the missing *. This tells the container that any request that does not have a path info in it (urls without a .xxx at the end), should be sent to the DispatcherServlet. With this configuration, when a xxx.jsp request is received, the DispatcherServlet is not consulted, and your servlet container's default servlet will service the request and present the jsp as expected.

Hope this helps, I realize your earlier comments state that the problem has been resolved, but the solution CAN NOT be just adding method=RequestMethod.GET to the RequestMethod.

In addition to Jon Skeet's answer, I'd like to explain why most of the time when using == you actually get the answer true on different string instances with the same value:

string a = "Hell";
string b = "Hello";
a = a + "o";
Console.WriteLine(a == b);

As you can see, a and b must be different string instances, but because strings are immutable, the runtime uses so called string interning to let both a and b reference the same string in memory. The == operator for objects checks reference, and since both a and b reference the same instance, the result is true. When you change either one of them, a new string instance is created, which is why string interning is possible.

By the way, Jon Skeet's answer is not complete. Indeed, x == y is false but that is only because he is comparing objects and objects compare by reference. If you'd write (string)x == (string)y, it will return true again. So strings have their ==-operator overloaded, which calls String.Equals underneath.

Select Persons.Name, Persons.SS, Fears.Fear
From Persons
LEFT JOIN Persons_Fear
ON Persons.PersonID = Person_Fear.PersonID
LEFT JOIN Fears
ON Person_Fear.FearID = Fears.FearID;

It depends on the reason why you're willing to exit node.js process, but in any case process.exit() is the last option to consider. A quote from documentation:

It is important to note that calling process.exit() will force the process to exit as quickly as possible even if there are still asynchronous operations pending that have not yet completed fully, including I/O operations to process.stdout and process.stderr.

In most situations, it is not actually necessary to call process.exit() explicitly. The Node.js process will exit on it's own if there is no additional work pending in the event loop. The process.exitCode property can be set to tell the process which exit code to use when the process exits gracefully.

Let’s cover possible reasons why you might be willing to exit node.js process and why you should avoid process.exit():

Case 1 - Execution complete (command line script)

If script has reached its end and node interpreter doesn't exit, it indicates that some async operations are still pending. It’s wrong to force process termination with process.exit() at this point. It’s better to try to understand what is holding your script from exiting in expected way. And when you settle this, you can use process.exitCode to return any result to calling process.

Case 2 - Termination because of external signal (SIGINT/SIGTERM/other)

For example, if you’re willing to gracefully shut down an express app. Unlike command line script, express app keeps running infinitely, waiting for new requests. process.exit() will be a bad option here because it’s going to interrupt all requests which are in pipeline. And some of them might be non-idempotent (UPDATE, DELETE). Client will never know if those requests are completed or not on server side and it might be the reason of data inconsistency between client and server. The only good solution is to tell http server to stop accepting new requests and wait for pending ones to finish with server.close():

var express = require('express');
var app = express();
var server = app.listen(80);

process.on( 'SIGTERM', function () {
   server.close(function () {
     console.log("Finished all requests");
   });
});

If it still doesn't exit - see Case 1.

Case 3 - Internal error

It's always better to throw an error, you’ll get a nicely formatted stack trace and error message. Upper levels of code can always decide if they can handle error (catch) or let it crash the process. On the other side, process.exit(1) will terminate process silently and there will be no chance to recover from this. It might be the only “benefit” of process.exit(), you can be sure that process will be terminated.

The following solution was inspired by Sandro's tip above.

Warning: while it worked for me, but I cannot tell if it will work for you.

My problem was the following: reading some specific rows from a table (let's call this table broken) would crash MySQL. Even SELECT COUNT(*) FROM broken would kill it. I hope you have a PRIMARY KEY on this table (in the following sample, it's id).

1. Make sure you have a backup or snapshot of the broken MySQL server (just in case you want to go back to step 1 and try something else!)
2. CREATE TABLE broken_repair LIKE broken;
3. INSERT broken_repair SELECT * FROM broken WHERE id NOT IN (SELECT id FROM broken_repair) LIMIT 1;
4. Repeat step 3 until it crashes the DB (you can use LIMIT 100000 and then use lower values, until using LIMIT 1 crashes the DB).
5. See if you have everything (you can compare SELECT MAX(id) FROM broken with the number of rows in broken_repair).
6. At this point, I apparently had all my rows (except those which were probably savagely truncated by InnoDB). If you miss some rows, you could try adding an OFFSET to the LIMIT.

Good luck!

The fix for me was to go into Options when trying to Restore the database and change the path to the new path. Here is the screenshot

You can also invert the position when you request an object:

Object obj = list.get(list.size() - 1 - position);

Try with setPreferredSize instead of setSize.

UPDATE: GridLayout take up all space in its container, and BoxLayout seams to take up all the width in its container, so I added some glue-panels that are invisible and just take up space when the user stretches the window. I have just done this horizontally, and not vertically, but you could implement that in the same way if you want it.

Since GridLayout make all cells in the same size, it doesn't matter if they have a specified size. You have to specify a size for its container instead, as I have done.

import javax.swing.*;
import java.awt.*;

public class PanelModel {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Colored Trails");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel mainPanel = new JPanel();
        mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));

        JPanel firstPanel = new JPanel(new GridLayout(4, 4));
        firstPanel.setPreferredSize(new Dimension(4*100, 4*100));
        for (int i=1; i<=4; i++) {
            for (int j=1; j<=4; j++) {
                firstPanel.add(new JButton());
            }
        }

        JPanel firstGluePanel = new JPanel(new BorderLayout());
        firstGluePanel.add(firstPanel, BorderLayout.WEST);
        firstGluePanel.add(Box.createHorizontalGlue(), BorderLayout.CENTER);
        firstGluePanel.add(Box.createVerticalGlue(), BorderLayout.SOUTH);

        JPanel secondPanel = new JPanel(new GridLayout(13, 5));
        secondPanel.setPreferredSize(new Dimension(5*40, 13*40));
        for (int i=1; i<=5; i++) {
            for (int j=1; j<=13; j++) {
                secondPanel.add(new JButton());
            }
        }

        JPanel secondGluePanel = new JPanel(new BorderLayout());
        secondGluePanel.add(secondPanel, BorderLayout.WEST);
        secondGluePanel.add(Box.createHorizontalGlue(), BorderLayout.CENTER);
        secondGluePanel.add(Box.createVerticalGlue(), BorderLayout.SOUTH);

        mainPanel.add(firstGluePanel);
        mainPanel.add(secondGluePanel);
        frame.getContentPane().add(mainPanel);

        //frame.setSize(400,600);
        frame.pack();
        frame.setVisible(true);
    }
}

JSON.parse() is used to convert String to Object.
JSON.stringify() is used to convert Object to String.

You can refer this too...

<script type="text/javascript">

function ajax_get_json(){

    var hr = new XMLHttpRequest();
    hr.open("GET", "JSON/mylist.json", true);
    hr.setRequestHeader("Content-type", "application/json",true);
    hr.onreadystatechange = function() {
        if(hr.readyState == 4 && hr.status == 200) {
           /*  var return_data = hr.responseText; */

           var data=JSON.parse(hr.responseText);
           var status=document.getElementById("status");
           status.innerHTML = "";
           /* status.innerHTML=data.u1.country;  */
           for(var obj in data)
               {
               status.innerHTML+=data[obj].uname+" is in "+data[obj].country+"<br/>";
               }

        }
    }
    hr.send(null);
    status.innerHTML = "requesting...";
}
</script>

Without html5 attribute one can achieve this by using php:

Create php file named download.php with this code:

<?php
ob_start();
$file = "yourPDF.pdf"

if (file_exists($file)) 
{
    header('Content-Description: File Transfer');
    header('Content-Type: application/octet-stream');
    header('Content-Disposition: attachment; filename='.basename($file));
    header('Content-Transfer-Encoding: binary');
    header('Expires: 0');
    header('Cache-Control: must-revalidate');
    header('Pragma: public');
    header('Content-Length: ' . filesize($file));
    ob_clean();
    flush();
    readfile($file);
    exit();
}

Now if you want to automatically start downloading pdf write this javascript:

<script>window.location = "download.php";</script>

If you want this to work on a link, use this...

<a href='javascript:window.location = "download.php"'>
    Download it!
</a>

ntop or nagios          

Follow these steps:

1. Open Netbeans
2. Click File > New Project > JavaFX > JavaFX with existing sources
3. Click Next
4. Name the project
5. Click Next
6. Under Source Package Folders click Add Folder
7. Select the nbproject folder under the zip file you wish to upload (Note: you need to unzip the folder)
8. Click Next
9. All the files will be included but you can exclude some if you wish
10. Click Finish and the project should be there

If you don't have the source folder added do the following

1. Under your projects directory tree right click on Source Packages
2. Click New
3. Click Java Package and name it with the name of the package the source files have
4. Go to the directory location (i.e., using Windows Explorer not Netbeans) of those source files, highlight them all, then drag and drop them under that Java Package you just created
5. Click Run
6. Click Clean and Build Project

Now you can have fun and run the application.

Below is the code that implements custom vertical scrollbar. The important detail here is to know when scrollbar is needed by calculating how much space is consumed by the controls that you add to the panel.

panelUserInput.SuspendLayout();
panelUserInput.Controls.Clear();
panelUserInput.AutoScroll = false;
panelUserInput.VerticalScroll.Visible = false;

// here you'd be adding controls

int x = 20, y = 20, height = 0;
for (int inx = 0; inx < numControls; inx++ )
{
    // this example uses textbox control
    TextBox txt = new TextBox();
    txt.Location = new System.Drawing.Point(x, y);
    // add whatever details you need for this control
    // before adding it to the panel
    panelUserInput.Controls.Add(txt);
    height = y + txt.Height;
    y += 25;
}
if (height > panelUserInput.Height)
{
    VScrollBar bar = new VScrollBar();
    bar.Dock = DockStyle.Right;
    bar.Scroll += (sender, e) => { panelUserInput.VerticalScroll.Value =  bar.Value; };
    bar.Top = 0;
    bar.Left = panelUserInput.Width - bar.Width;
    bar.Height = panelUserInput.Height;
    bar.Visible = true;
    panelUserInput.Controls.Add(bar);
}
panelUserInput.ResumeLayout();

// then update the form
this.PerformLayout();

Also, if you want to overwrite messages in the same line, for instance in a countdown, you could add '\r' at the end of the string.

process.stdout.write("Downloading " + data.length + " bytes\r");

You can use this regular expression (any whitespace or any non-whitespace) as many times as possible down to and including 0.

[\s\S]*

This expression will match as few as possible, but as many as necessary for the rest of the expression.

[\s\S]*?

For example, in this regex [\s\S]*?B will match aB in aBaaaaB. But in this regex [\s\S]*B will match aBaaaaB in aBaaaaB.

You can delete by 1 or more properties:

//Delets an json object from array by given object properties. 
//Exp. someJasonCollection.deleteWhereMatches({ l: 1039, v: '3' }); -> 
//removes all items        with property l=1039 and property v='3'.
Array.prototype.deleteWhereMatches = function (matchObj) {
    var indexes = this.findIndexes(matchObj).sort(function (a, b) { return b > a; });
    var deleted = 0;
    for (var i = 0, count = indexes.length; i < count; i++) {
        this.splice(indexes[i], 1);
        deleted++;
    }
    return deleted;
}

If you are just comparing numbers, I think there's no need to change syntax, just correct those lines, lines 6 and 9 brackets.

Line 6 before: if [ "$age" -le "7"] -o [ "$age" -ge " 65" ]

After: if [ "$age" -le "7" -o "$age" -ge "65" ]

Line 9 before: elif [ "$age" -gt "7"] -a [ "$age" -lt "65"]

After: elif [ "$age" -gt "7" -a "$age" -lt "65" ]

Because of the way jQuery selectors are evaluated right-to-left, the quite readable li:not(:first) is slowed down by that evaluation.

An equally fast and easy to read solution is using the function version .not(":first"):

e.g.

$("li").not(":first").hide();

JSPerf: http://jsperf.com/fastest-way-to-select-all-expect-the-first-one/6

This is only few percentage points slower than slice(1), but is very readable as "I want all except the first one".

QUESTION was: suppose T john is to be converted john T, how to change in excel?

If text "T john" is in cell A1

=CONCATENATE(RIGHT(A1,LEN(A1)-2)," ",LEFT(A1,1))

and with a nod to the & crowd

=RIGHT(A1,LEN(A1)-2)&" "&LEFT(A1,1)

takes the right part of the string excluding the first 2 characters, adds a space, adds the first character.

You can do this by using jquery :

ts code :

    scrollTOElement = (element, offsetParam?, speedParam?) => {
    const toElement = $(element);
    const focusElement = $(element);
    const offset = offsetParam * 1 || 200;
    const speed = speedParam * 1 || 500;
    $('html, body').animate({
      scrollTop: toElement.offset().top + offset
    }, speed);
    if (focusElement) {
      $(focusElement).focus();
    }
  }

html code :

<button (click)="scrollTOElement('#elementTo',500,3000)">Scroll</button>

Apply this on elements you want to scroll :

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

Here is a stackblitz sample.

Because this is related to something I was doing, I'll share here.

What if we're not sure if there's a header and you also don't feel like importing sniffer and other things?

If your task is basic, such as printing or appending to a list or array, you could just use an if statement:

# Let's say there's 4 columns
with open('file.csv') as csvfile:
     csvreader = csv.reader(csvfile)
# read first line
     first_line = next(csvreader)
# My headers were just text. You can use any suitable conditional here
     if len(first_line) == 4:
          array.append(first_line)
# Now we'll just iterate over everything else as usual:
     for row in csvreader:
          array.append(row)

The summary is -

• You write a finalizer for your class if it has reference to unmanaged resources and you want to make sure that those unmanaged resources are released when an instance of that class is garbage collected automatically. Note that you can't call the Finalizer of an object explicitly - it's called automatically by the garbage collector as and when it deems necessary.
• On the other hand, you implement the IDisposable interface(and consequently define the Dispose() method as a result for your class) when your class has reference to unmanaged resources, but you don't want to wait for the garbage collector to kick in (which can be anytime - not in control of the programmer) and want to release those resources as soon as you are done. Thus, you can explicitly release unmanaged resources by calling an object's Dispose() method.

Also, another difference is - in the Dispose() implementation, you should release managed resources as well, whereas that should not be done in the Finalizer. This is because it's very likely that the managed resources referenced by the object have already been cleaned up before it's ready to be finalized.

For a class that uses unmanaged resources, the best practice is to define both - the Dispose() method and the Finalizer - to be used as a fallback in case a developer forgets to explicitly dispose off the object. Both can use a shared method to clean up managed and unmanaged resources :-

class ClassWithDisposeAndFinalize : IDisposable
{
    // Used to determine if Dispose() has already been called, so that the finalizer
    // knows if it needs to clean up unmanaged resources.
     private bool disposed = false;

     public void Dispose()
     {
       // Call our shared helper method.
       // Specifying "true" signifies that the object user triggered the cleanup.
          CleanUp(true);

       // Now suppress finalization to make sure that the Finalize method 
       // doesn't attempt to clean up unmanaged resources.
          GC.SuppressFinalize(this);
     }
     private void CleanUp(bool disposing)
     {
        // Be sure we have not already been disposed!
        if (!this.disposed)
        {
             // If disposing equals true i.e. if disposed explicitly, dispose all 
             // managed resources.
            if (disposing)
            {
             // Dispose managed resources.
            }
             // Clean up unmanaged resources here.
        }
        disposed = true;
      }

      // the below is called the destructor or Finalizer
     ~ClassWithDisposeAndFinalize()
     {
        // Call our shared helper method.
        // Specifying "false" signifies that the GC triggered the cleanup.
        CleanUp(false);
     }

Use retainAll() in the Set interface. This method provides an intersection of elements common in both sets. See the API docs for more information.

In Python, this is implemented as itertools.combinations

https://docs.python.org/2/library/itertools.html#itertools.combinations

In C++, such combination function could be implemented based on permutation function.

The basic idea is to use a vector of size n, and set only k item to 1 inside, then all combinations of nchoosek could obtained by collecting the k items in each permutation. Though it might not be the most efficient way require large space, as combination is usually a very large number. It's better to be implemented as a generator or put working codes into do_sth().

Code sample:

#include <vector>
#include <iostream>
#include <iterator>
#include <algorithm>

using namespace std;

int main(void) {

  int n=5, k=3;

  // vector<vector<int> > combinations;
 vector<int> selected;
 vector<int> selector(n);
 fill(selector.begin(), selector.begin() + k, 1);
 do {
     for (int i = 0; i < n; i++) {
      if (selector[i]) {
            selected.push_back(i);
      }
     }
     //     combinations.push_back(selected);
         do_sth(selected);
     copy(selected.begin(), selected.end(), ostream_iterator<int>(cout, " "));
     cout << endl;
     selected.clear();
 }
 while (prev_permutation(selector.begin(), selector.end()));

  return 0;
}

and the output is

0 1 2 
0 1 3 
0 1 4 
0 2 3 
0 2 4 
0 3 4 
1 2 3 
1 2 4 
1 3 4 
2 3 4 

This solution is actually a duplicate with Generating combinations in c++