Introduction to Algorithms by Cormen et. al. is a standard introductory algorithms book, and is used by many universities, including my own. It has pretty good coverage and is very approachable.

And anything by Robert Sedgewick is good too.

There are much better ways to print variable's value in PHP. One of them is to use buildin var_dump() function. If you want to use var_dump(), I would also suggest to install Xdebug (from https://xdebug.org) since it generates much more readable printouts.

The idea of printing values to browser console is somewhat bizarre, but if you really want to use it, there is very useful Google Chrome extension, PHP Console, which should satisfy all your needs. You can find it at consle.com It works well also in Vivaldi and in Opera (though you will need "Download Chrome Extension" extension to install it). The extension is accompanied by PHP library you use in your code.

POSIX 7

First find the function: http://pubs.opengroup.org/onlinepubs/9699919799/functions/nanosleep.html

That contains a link to a time.h, which as a header should be where structs are defined:

The header shall declare the timespec structure, which shall > include at least the following members:

time_t  tv_sec    Seconds. 
long    tv_nsec   Nanoseconds.

man 2 nanosleep

Pseudo-official glibc docs which you should always check for syscalls:

struct timespec {
    time_t tv_sec;        /* seconds */
    long   tv_nsec;       /* nanoseconds */
};

I fixed it by added the jquery.slim.min.js after the jquery.min.js, as the Solution Sequence.

Problem Sequence

<script src="./vendor/jquery/jquery.min.js"></script>
<script src="./vendor/bootstrap/js/bootstrap.bundle.min.js"></script>

Solution Sequence

<script src="./vendor/jquery/jquery.min.js"></script>
<script src="./vendor/jquery/jquery.slim.min.js"></script>
<script src="./vendor/jquery-easing/jquery.easing.min.js"></script>

Guava's HashFunction (javadoc) provides decent non-crypto-strong hashing.

Update 2019: Using asdf

These days I suggest using asdf to install various versions of Python interpreters next to each other.

Note1: asdf works not only for Python but for all major languages.

Note2: asdf works fine in combination with popular package-managers such as pipenv and poetry.

If you have asdf installed you can easily download/install new Python interpreters:

# Install Python plugin for asdf:
asdf plugin-add python

# List all available Python interpreters:
asdf list-all python

# Install the Python interpreters that you need:
asdf install python 3.7.4
asdf install python 3.6.9
# etc...

# If you want to define the global version:
asdf global python 3.7.4

# If you want to define the local (project) version:
# (this creates a file .tool-versions in the current directory.)
asdf local python 3.7.4

Old Answer: Install Python from source

If you need to install multiple versions of Python (next to the main one) on Ubuntu / Mint: (should work similar on other Unixs'.)

1) Install Required Packages for source compilation

$ sudo apt-get install build-essential checkinstall
$ sudo apt-get install libreadline-gplv2-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev

2) Download and extract desired Python version

Download Python Source for Linux as tarball and move it to /usr/src.

Extract the downloaded package in place. (replace the 'x's with your downloaded version)

$ sudo tar xzf Python-x.x.x.tgz

3) Compile and Install Python Source

$ cd Python-x.x.x
$ sudo ./configure
$ sudo make altinstall

Your new Python bin is now located in /usr/local/bin. You can test the new version:

$ pythonX.X -V
Python x.x.x
$ which pythonX.X
/usr/local/bin/pythonX.X

# Pip is now available for this version as well:
$ pipX.X -V
pip X.X.X from /usr/local/lib/pythonX.X/site-packages (python X.X)

This was pretty well answered over here: How to make a YouTube embedded video a full page width one?

If you add '?rel=0&autoplay=1' to the end of the url in the embed code (like this)

<iframe id="video" src="//www.youtube.com/embed/5iiPC-VGFLU?rel=0&autoplay=1" frameborder="0" allowfullscreen></iframe>

of the video it should play on load. Here's a demo over at jsfiddle.

There is a very simple solution using dense_rank()

dense_rank() over (partition by [Mth] order by [UserAccountKey]) 
+ dense_rank() over (partition by [Mth] order by [UserAccountKey] desc) 
- 1

This will give you exactly what you were asking for: The number of distinct UserAccountKeys within each month.

This works and I need to set the token only once in my app.js:

axios.defaults.headers.common = {
    'Authorization': 'Bearer ' + token
};

Then I can make requests in my components without setting the header again.

"axios": "^0.19.0",

You are getting the two thinks mixed.

You have "react-cookie" and "axios"

react-cookie => is for handling the cookie on the client side

axios => is for sending ajax requests to the server

With that info, if you want the cookies from the client side to be communicated in the backend side as well, you will need to connect them together.

Note from "react-cookie" Readme:

Isomorphic cookies!

To be able to access user cookies while doing server-rendering, you can use plugToRequest or setRawCookie.

link to readme

If this is what you need, great.

If not, please comment so I could elaborate more.

Use a generator together with any, which short-circuits on the first True:

if any(ext in url_string for ext in extensionsToCheck):
    print(url_string)

EDIT: I see this answer has been accepted by OP. Though my solution may be "good enough" solution to his particular problem, and is a good general way to check if any strings in a list are found in another string, keep in mind that this is all that this solution does. It does not care WHERE the string is found e.g. in the ending of the string. If this is important, as is often the case with urls, you should look to the answer of @Wladimir Palant, or you risk getting false positives.

You can use either length property and length is better on performance than size.

$('#input1 option').length;

OR you can use size function like (removed in jQuery v3)

$('#input1 option').size(); 

$(document).ready(function(){
   console.log($('#input1 option').size());
   console.log($('#input1 option').length);
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<select data-attr="dropdown" id="input1">
   <option value="Male" id="Male">Male</option>
   <option value="Female" id="Female">Female</option>
</select>

jsbin.com demo

You'll see the demo code is just a start/stop/reset millisecond counter. If you want to do fanciful formatting on the time, that's completely up to you. This should be more than enough to get you started.

This was a fun little project to work on. Here's how I'd approach it

var Stopwatch = function(elem, options) {

  var timer       = createTimer(),
      startButton = createButton("start", start),
      stopButton  = createButton("stop", stop),
      resetButton = createButton("reset", reset),
      offset,
      clock,
      interval;

  // default options
  options = options || {};
  options.delay = options.delay || 1;

  // append elements     
  elem.appendChild(timer);
  elem.appendChild(startButton);
  elem.appendChild(stopButton);
  elem.appendChild(resetButton);

  // initialize
  reset();

  // private functions
  function createTimer() {
    return document.createElement("span");
  }

  function createButton(action, handler) {
    var a = document.createElement("a");
    a.href = "#" + action;
    a.innerHTML = action;
    a.addEventListener("click", function(event) {
      handler();
      event.preventDefault();
    });
    return a;
  }

  function start() {
    if (!interval) {
      offset   = Date.now();
      interval = setInterval(update, options.delay);
    }
  }

  function stop() {
    if (interval) {
      clearInterval(interval);
      interval = null;
    }
  }

  function reset() {
    clock = 0;
    render();
  }

  function update() {
    clock += delta();
    render();
  }

  function render() {
    timer.innerHTML = clock/1000; 
  }

  function delta() {
    var now = Date.now(),
        d   = now - offset;

    offset = now;
    return d;
  }

  // public API
  this.start  = start;
  this.stop   = stop;
  this.reset  = reset;
};

Get some basic HTML wrappers for it

<!-- create 3 stopwatches -->
<div class="stopwatch"></div>
<div class="stopwatch"></div>
<div class="stopwatch"></div>

Usage is dead simple from there

var elems = document.getElementsByClassName("stopwatch");

for (var i=0, len=elems.length; i<len; i++) {
  new Stopwatch(elems[i]);
}

As a bonus, you get a programmable API for the timers as well. Here's a usage example

var elem = document.getElementById("my-stopwatch");
var timer = new Stopwatch(elem, {delay: 10});

// start the timer
timer.start();

// stop the timer
timer.stop();

// reset the timer
timer.reset();

jQuery plugin

As for the jQuery portion, once you have nice code composition as above, writing a jQuery plugin is easy mode

(function($) {

  var Stopwatch = function(elem, options) {
    // code from above...
  };

  $.fn.stopwatch = function(options) {
    return this.each(function(idx, elem) {
      new Stopwatch(elem, options);
    });
  };
})(jQuery);

jQuery plugin usage

// all elements with class .stopwatch; default delay (1 ms)
$(".stopwatch").stopwatch();

// a specific element with id #my-stopwatch; custom delay (10 ms)
$("#my-stopwatch").stopwatch({delay: 10});

Decide if you need an immutable object or not.

If you put public properties in your class, the state of every instance can be changed at every time in your code. So your class could be like this:

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
    public Person(){}
    public Person(string name, int age)
    {
        Name = name;
        Age = age;
    }
    //Other properties, methods, events...
}

In that case, having a Person(string name, int age) constructor is not so useful.

The second option is to implement an immutable type. For example:

public class Person
{
    public string Name { get; private set; }
    public int Age { get; private set; }

    public Person(string name, int age)
    {
        Name = name;
        Age = age;
    }
    //Other properties, methods, events...
}

Now you have a constructor that sets the state for the instance, once, at creation time. Note that now setters for properties are private, so you can't change the state after your object is instantiated.

A best practice is to define classes as immutable every time if possible. To understand advantages of immutable classes I suggest you read this article.

GitHub solution solved the problem for me by adding

• Global.asax.cs: Set AntiForgeryConfig.SuppressXFrameOptionsHeader = true; in Application_Start:
• Manually add the X-Frame-Options header in Application_BeginRequest

The clue is in the error message - if you look at the documentation for json_decode note that it can take a second param, which controls whether it returns an array or an object - it defaults to object.

So change your call to

$json = json_decode(file_get_contents($file), true);

And it'll return an associative array and your code should work fine.

Library

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

Code

public void append()
{
    try
    {
        String path = "D:/sample.txt";

        File file = new File(path);

        FileWriter fileWriter = new FileWriter(file,true);

        BufferedWriter bufferFileWriter  = new BufferedWriter(fileWriter);

        fileWriter.append("Sample text in the file to append");

        bufferFileWriter.close();

        System.out.println("User Registration Completed");

    }catch(Exception ex)
    {
        System.out.println(ex);
    }
}

maybe this is what u want?

<a href="#" id="bottle" onclick="document.location=this.id+'.html';return false;" >
    <img src="../images/bottle.jpg" alt="bottle" class="thumbnails" />
</a>

edit: keep in mind that anyone who does not have javascript enabled will not be able to navaigate to the image page....

As to @Jean-Philippe Bond 's answer ,

here is a maven quick example for maven user to configure HTTP endpoint to shutdown a spring boot web app using spring-boot-starter-actuator so that you can copy and paste:

1.Maven pom.xml:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

2.application.properties:

#No auth  protected 
endpoints.shutdown.sensitive=false

#Enable shutdown endpoint
endpoints.shutdown.enabled=true

All endpoints are listed here:

3.Send a post method to shutdown the app:

curl -X POST localhost:port/shutdown

Security Note:

if you need the shutdown method auth protected, you may also need

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-security</artifactId>
</dependency>

configure details:

The best way to clone database tables without mysqldump:

1. Create a new database.

2. Create clone-queries with query:

   SET @NewSchema = 'your_new_db';
   SET @OldSchema = 'your_exists_db';
   SELECT CONCAT('CREATE TABLE ',@NewSchema,'.',table_name, ' LIKE ', TABLE_SCHEMA ,'.',table_name,';INSERT INTO ',@NewSchema,'.',table_name,' SELECT * FROM ', TABLE_SCHEMA ,'.',table_name,';') 
   FROM information_schema.TABLES where TABLE_SCHEMA = @OldSchema AND TABLE_TYPE != 'VIEW';
   

3. Run that output!

But note, script above just fast clone tables - not views, triggers and user-functions: you can fast get structure by mysqldump --no-data --triggers -uroot -ppassword , and then use to clone only insert statement .

Why it is actual question? Because uploading of mysqldumps is ugly slow if DB is over 2Gb. And you can't clone InnoDB tables just by copying DB files (like snapshot backuping).

git add myfile.h
git commit -m "your commit message"
git push -u origin master

if you don't remember all the files you need to update, use

git status

Important to note, as of Bootstrap 4 you can customize these styles directly in your Bootstrap Sass variables file, so in _variables.scss you have these options:

//== Tooltips
//
//##

// ** Tooltip max width
$tooltip-max-width:           200px !default;
// ** Tooltip text color
$tooltip-color:               #fff !default;
// ** Tooltip background color
$tooltip-bg:                  #000 !default;
$tooltip-opacity:             .9 !default;

// ** Tooltip arrow width
$tooltip-arrow-width:         5px !default;
// ** Tooltip arrow color
$tooltip-arrow-color:         $tooltip-bg !default;

See here: http://v4-alpha.getbootstrap.com/getting-started/options/

Best to work in Sass and compile as you go with Grunt or Gulp build tools.

You can get MinGW (as others have suggested) but I would recommend getting a simple IDE (not VS Express). You can try Dev C++ http://www.bloodshed.net/devcpp.html Its a simple IDE for C/C++ and uses MinGW internally. In this you can write and compile single C files without creating a full-blown "project".

It allows browsers to determine if they can handle the scripting/style language before making a request for the script or stylesheet (or, in the case of embedded script/style, identify which language is being used).

This would be much more important if there had been more competition among languages in browser space, but VBScript never made it beyond IE and PerlScript never made it beyond an IE specific plugin while JSSS was pretty rubbish to begin with.

The draft of HTML5 makes the attribute optional.

For Bootstrap 3

The workflow I had to deal with was loading content with a url context that could change. So by default setup your modal with javascript or the href for the default context you want to show :

$('#myModal').modal({
        show: false,
        remote: 'some/context'
});

Destroying the modal wouldn't work for me because I wasn't loading from the same remote, thus I had to :

$(".some-action-class").on('click', function () {
        $('#myModal').removeData('bs.modal');
        $('#myModal').modal({remote: 'some/new/context?p=' + $(this).attr('buttonAttr') });
        $('#myModal').modal('show');
});

This of course was easily refactored into a js library and gives you a lot of flexibility with loading modals

I hope this saves someone 15 minutes of tinkering.

Javascript

var ie = (function(){

    var undef,
        v = 3,
        div = document.createElement('div'),
        all = div.getElementsByTagName('i');

    while (
        div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->',
        all[0]
    );

    return v > 4 ? v : undef;

}());

You can then do:

ie < 9

By James Panolsey from here: http://james.padolsey.com/javascript/detect-ie-in-js-using-conditional-comments

I had similar situation. I found that one of my config maps was duplicated. I had two configmaps for the same namespace. One had the correct namespace reference, the other was pointing to the wrong namespace.

I deleted and recreated the configmap with the correct file (or fixed file). I am only using one, and that seemed to make the particular cluster happier.

So I would check the files for any typos or duplicate items that could be causing conflict.

Just wanted to complete the thread. To be very clear this does not works in IE9, however we can do it by little css trick.

<div class="customselect">
    <select>
    <option>2000</option>
    <option>2001</option>
    <option>2002</option>
    </select>
</div>

.customselect {
    width: 80px;
    overflow: hidden;
   border:1px solid;
}

.customselect select {
   width: 100px;
   border:none;
  -moz-appearance: none;
   -webkit-appearance: none;
   appearance: none;
}

I needed something similar, and came up with using the :before (or :after) pseudoclasses:

#mydiv {
   background-color: #fbb;
   margin-top: 100px;
   position: relative;
}
#mydiv:before {
   content: "";
   background-color: #bfb;
   top: -100px;
   height: 100px;
   width: 100%;
   position: absolute;
}

JSFiddle

Naïve approach:

a = "A long string with a . in the middle ending with ."
fchar = '.'
rchar = '. -'
a[::-1].replace(fchar, rchar[::-1], 1)[::-1]

Out[2]: 'A long string with a . in the middle ending with . -'

Aditya Sihag's answer with a single rfind:

pos = a.rfind('.')
a[:pos] + '. -' + a[pos+1:]

var a = [{a1: 1, children: [{a1: 2}, undefined, {a1: 3}]}, undefined, {a1: 5}, undefined, {a1: 6}]
function removeNilItemInArray(arr) {
    if (!arr || !arr.length) return;
    for (let i = 0; i < arr.length; i++) {
        if (!arr[i]) {
            arr.splice(i , 1);
            continue;
        }
        removeNilItemInArray(arr[i].children);
    }
}
var b = a;
removeNilItemInArray(a);
// Always keep this memory zone
console.log(b);

• Check that your users.gender column is an INTEGER.
• Try: alter table users convert to character set latin1 collate latin1_swedish_ci;

If you want an one-line-template. Here it is

int nxt_po2(int n) { return 1 + (n|=(n|=(n|=(n|=(n|=(n-=1)>>1)>>2)>>4)>>8)>>16); }

or

int nxt_po2(int n) { return 1 + (n|=(n|=(n|=(n|=(n|=(n-=1)>>(1<<0))>>(1<<1))>>(1<<2))>>(1<<3))>>(1<<4)); }

In addition to the other answers, I'd like to improve the removal, to something more generic:

$(this).closest('tr').remove();

This would be much better than using $(this).parent().parent().remove();, because it doesn't depend on the depth of the element. So, the structure of the row becomes much more flexible.

Of course the performance of the hashmap will depend based on the quality of the hashCode() function for the given object. However, if the function is implemented such that the possibility of collisions is very low, it will have a very good performance (this is not strictly O(1) in every possible case but it is in most cases).

For example the default implementation in the Oracle JRE is to use a random number (which is stored in the object instance so that it doesn't change - but it also disables biased locking, but that's an other discussion) so the chance of collisions is very low.

I do have an article on MSDN - Creating ASP.NET MVC with custom bootstrap theme / layout using VS 2012, VS 2013 and VS 2015, also have a demo code sample attached.. Please refer below link. https://code.msdn.microsoft.com/ASPNET-MVC-application-62ffc106

Probably the simplest way is to use the InputBox method of the Microsoft.VisualBasic.Interaction class:

[void][Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic')

$title = 'Demographics'
$msg   = 'Enter your demographics:'

$text = [Microsoft.VisualBasic.Interaction]::InputBox($msg, $title)

While the answer given by Paul H shows the essential part, it is not a complete example. On the other hand the matplotlib example seems rather complicated and does not show how to use days.

So for everyone in need here is a full working example:

from datetime import datetime
import matplotlib.pyplot as plt
from matplotlib.dates import DateFormatter

myDates = [datetime(2012,1,i+3) for i in range(10)]
myValues = [5,6,4,3,7,8,1,2,5,4]
fig, ax = plt.subplots()
ax.plot(myDates,myValues)

myFmt = DateFormatter("%d")
ax.xaxis.set_major_formatter(myFmt)

## Rotate date labels automatically
fig.autofmt_xdate()
plt.show()

You can also use button click event like this:

<asp:TemplateField>
    <ItemTemplate>
        <asp:Button ID="Button1" runat="server" Text="Button" 
                    OnClick="MyButtonClick" />
    </ItemTemplate>
</asp:TemplateField>

protected void MyButtonClick(object sender, System.EventArgs e)
{
    //Get the button that raised the event
    Button btn = (Button)sender;

    //Get the row that contains this button
    GridViewRow gvr = (GridViewRow)btn.NamingContainer;
} 

OR

You can do like this to get data:

 void CustomersGridView_RowCommand(Object sender, GridViewCommandEventArgs e)
 {

    // If multiple ButtonField column fields are used, use the
    // CommandName property to determine which button was clicked.
    if(e.CommandName=="Select")
    {
      // Convert the row index stored in the CommandArgument
      // property to an Integer.
      int index = Convert.ToInt32(e.CommandArgument);    

      // Get the last name of the selected author from the appropriate
      // cell in the GridView control.
      GridViewRow selectedRow = CustomersGridView.Rows[index];
    }
}

and Button in gridview should have command like this and handle rowcommand event:

<asp:gridview id="CustomersGridView" 
        datasourceid="CustomersSqlDataSource" 
        autogeneratecolumns="false"
        onrowcommand="CustomersGridView_RowCommand"
        runat="server">

        <columns>
          <asp:buttonfield buttontype="Button" 
            commandname="Select"
            headertext="Select Customer" 
            text="Select"/>
        </columns>
  </asp:gridview>

Check full example on MSDN

well it's deprecated in android M so you must make exception for android M and lower. Just add current theme on getColor function. You can get current theme with getTheme().

This will do the trick in fragment, you can replace getActivity() with getBaseContext(), yourContext, etc which hold your current context

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
    yourTitle.setTextColor(getActivity().getResources().getColor(android.R.color.white, getActivity().getTheme()));
}else {
    yourTitle.setTextColor(getActivity().getResources().getColor(android.R.color.white));
}

*p.s : color is deprecated in M, but drawable is deprecated in L

Replace that line with:

$("#someElement").click(function() {
    window.location.href = window.location.href;
});

or:

$("#someElement").click(function() {
    window.location.reload();
});

Cookies that 'expire at end of the session' expire unpredictably from the user's perspective!

On iOS with Safari they expire whenever you switch apps!

On Android with Chrome they don't expire when you close the browser.

On Windows desktop running Chrome they expire when you close the browser. That's not when you close your website's tab; its when you close all tabs. Nor do they expire if there are any other browser windows open. If users run web apps as windows they might not even know they are browser windows. So your cookie's life depends on what the user is doing with some apparently unrelated app.

$image="img_name.jpg";
$pdf =new FPDF();
$pdf-> AddPage();
$pdf-> SetFont("Arial","B",10);
$pdf-> Image('profileimage/'.$image,100,15,35,35);

with for-loop:

std::ifstream myFile;
std::string line;
int lines;

myFile.open(path);

for(lines = 0; std::getline(myFile,line); lines++);

std::cout << lines << std::endl;

I had this problem once before where one dialog box was throwing this error, while all the others were working perfectly. The answer was because I had another element with the same id="dialogBox" else ware on the page. I found this thread during a search, so hopefully this will help someone else.

There is no pure CSS solution to this classical problem.

If you want to achieve this, you have two solutions:

• Using a table (ugly, non semantic, but the only way to vertically align things that are not a single line of text)
• Listening to window.resize and absolute positionning

EDIT: when I say that there is no solution, I take as an hypothesis that you don't know in advance the size of the block to center. If you know it, paislee's solution is very good

I could use the GetBody from Request package.

Look this comment in source code from request.go in net/http:

GetBody defines an optional func to return a new copy of Body. It is used for client requests when a redirect requires reading the body more than once. Use of GetBody still requires setting Body. For server requests it is unused."

GetBody func() (io.ReadCloser, error)

This way you can get the body request without make it empty.

Sample:

getBody := request.GetBody
copyBody, err := getBody()
if err != nil {
    // Do something return err
}
http.DefaultClient.Do(request)

I don't think jQuery itself includes datetimepicker. You must use jQuery UI instead (src="jquery.ui").

Do the following two steps. I hope, it will solve the "404 not found" issue in tomcat server during the development of java servlet application.

Step 1: Right click on the server(in the server explorer tab)->Properties->Switch Location from workspace metadata to tomcat server

Step 2: Double Click on the server(in the server explorer tab)->Select Use tomcat installation option inside server location menu

Insertion sort can be resumed as "Look for the element which should be at first position(the minimum), make some space by shifting next elements, and put it at first position. Good. Now look at the element which should be at 2nd...." and so on...

Bubble sort operate differently which can be resumed as "As long as I find two adjacent elements which are in the wrong order, I swap them".

def _GetHtmlPage(self, addr):
  headers = { 'User-Agent' : self.userAgent,
            '  Cookie' : self.cookies}

  req = urllib2.Request(addr)
  response = urllib2.urlopen(req)

  print "ResponseInfo="
  print response.info()

  resultsHtml = unicode(response.read(), self.encoding)
  return resultsHtml  

Found this article on net, very relevant to this topic. So posting here.

ASP.NET Internals - Clearing ASP.NET Session variables

Uri.parse(STRING);

See doc:

String: an RFC 2396-compliant, encoded URI

Url must be canonicalized before using, like this:

Uri.parse(Uri.decode(STRING));

I had been trying for ages to generalize this kind of process, but in my case I was only concerned with the order of first event listener in the chain.

If it's of any use, here is my jQuery plugin that binds an event listener that is always triggered before any others:

** UPDATED inline with jQuery changes (thanks Toskan) **

(function($) {
    $.fn.bindFirst = function(/*String*/ eventType, /*[Object])*/ eventData, /*Function*/ handler) {
        var indexOfDot = eventType.indexOf(".");
        var eventNameSpace = indexOfDot > 0 ? eventType.substring(indexOfDot) : "";

        eventType = indexOfDot > 0 ? eventType.substring(0, indexOfDot) : eventType;
        handler = handler == undefined ? eventData : handler;
        eventData = typeof eventData == "function" ? {} : eventData;

        return this.each(function() {
            var $this = $(this);
            var currentAttrListener = this["on" + eventType];

            if (currentAttrListener) {
                $this.bind(eventType, function(e) {
                    return currentAttrListener(e.originalEvent); 
                });

                this["on" + eventType] = null;
            }

            $this.bind(eventType + eventNameSpace, eventData, handler);

            var allEvents = $this.data("events") || $._data($this[0], "events");
            var typeEvents = allEvents[eventType];
            var newEvent = typeEvents.pop();
            typeEvents.unshift(newEvent);
        });
    };
})(jQuery);

Things to note:

• This hasn't been fully tested.
• It relies on the internals of the jQuery framework not changing (only tested with 1.5.2).
• It will not necessarily get triggered before event listeners that are bound in any way other than as an attribute of the source element or using jQuery bind() and other associated functions.

For integers this is simple. Just do

(((x < 0) ? ((x % N) + N) : x) % N)

where I am supposing that N is positive and representable in the type of x. Your favorite compiler should be able to optimize this out, such that it ends up in just one mod operation in assembler.

You should actually wrap this in a try/catch block for IE:

// Ensure jquery is loaded -- syntaxed for IE compatibility
try
{
    var jqueryIsLoaded=jQuery;
    jQueryIsLoaded=true;
}
catch(err)
{
    var jQueryIsLoaded=false;
}
if(jQueryIsLoaded)
{
    $(function(){
        /** site level jquery code here **/
    });
}
else
{
    // Jquery not loaded
}

If you ask me. try this one

import urllib2
resp = urllib2.urlopen('http://hiscore.runescape.com/index_lite.ws?player=zezima')

and read the normal way ie

page = resp.read()

Good luck though

It's very simple steps to push your node js application from local to GitHub.

Steps:

1. First create a new repository on GitHub
2. Open Git CMD installed to your system (Install GitHub Desktop)
3. Clone the repository to your system with the command: git clone repo-url
4. Now copy all your application files to this cloned library if it's not there
5. Get everything ready to commit: git add -A
6. Commit the tracked changes and prepares them to be pushed to a remote repository: git commit -a -m "First Commit"
7. Push the changes in your local repository to GitHub: git push origin master

enumerate is what you want:

for i, s in enumerate(S):
    print s, i

It is also clarifying from https://www.programiz.com/python-programming/methods/built-in/getattr

class Person:
    age = 23
    name = "Adam"

person = Person()
print('The age is:', getattr(person, "age"))
print('The age is:', person.age)

The age is: 23

The age is: 23

class Person:
    age = 23
    name = "Adam"

person = Person()

# when default value is provided
print('The sex is:', getattr(person, 'sex', 'Male'))

# when no default value is provided
print('The sex is:', getattr(person, 'sex'))

The sex is: Male

AttributeError: 'Person' object has no attribute 'sex'

string folderPath = "";
FolderBrowserDialog folderBrowserDialog1 = new FolderBrowserDialog();
if (folderBrowserDialog1.ShowDialog() == DialogResult.OK) {
    folderPath = folderBrowserDialog1.SelectedPath ;
}

You can use _ _getitem__(key) function.

>>> iterable = ('A', 'B', 'C', 'D', 'E')
>>> key = 4
>>> iterable.__getitem__(key)
'E'

You could add a condition and then change it via the rootscope. Before your ajax request, you simply call $rootScope.$emit('stopLoader');

angular.module('directive.loading', [])
        .directive('loading',   ['$http', '$rootScope',function ($http, $rootScope)
        {
            return {
                restrict: 'A',
                link: function (scope, elm, attrs)
                {
                    scope.isNoLoadingForced = false;
                    scope.isLoading = function () {
                        return $http.pendingRequests.length > 0 && scope.isNoLoadingForced;
                    };

                    $rootScope.$on('stopLoader', function(){
                        scope.isNoLoadingForced = true;
                    })

                    scope.$watch(scope.isLoading, function (v)
                    {
                        if(v){
                            elm.show();
                        }else{
                            elm.hide();
                        }
                    });
                }
            };

        }]);

This is definatly not the best solution but it would still works.

If you have a view with multiple constrains, a much easier way without having to create multiple outlets would be:

In interface builder, give each constraint you wish to modify an identifier:

Then in code you can modify multiple constraints like so:

for constraint in self.view.constraints {
    if constraint.identifier == "myConstraint" {
       constraint.constant = 50
    }
}
myView.layoutIfNeeded()

You can give multiple constrains the same identifier thus allowing you to group together constrains and modify all at once.

The default scope is package-private. All classes in the same package can access the method/field/class. Package-private is stricter than protected and public scopes, but more permissive than private scope.

More information:
http://docs.oracle.com/javase/tutorial/java/javaOO/accesscontrol.html
http://mindprod.com/jgloss/scope.html

I have also met this issue and wasted a lot of time debugging it.

First, make sure that the path you provide is valid, i.e., there is an image in that path.

Next, you should be aware that Opencv doesn't support image paths which contain unicode characters (see ref). If your image path contains Unicode characters, you can use the following code to read the image:

import numpy as np
import cv2

# img is in BGR format if the underlying image is a color image
img = cv2.imdecode(np.fromfile(im_path, dtype=np.uint8), cv2.IMREAD_UNCHANGED)

In case of someone else is doing it in Python and it is not working, try to set it before do the imports of pycuda and tensorflow.

I.e.:

import os
os.environ["CUDA_DEVICE_ORDER"] = "PCI_BUS_ID"
os.environ["CUDA_VISIBLE_DEVICES"] = "0"
...
import pycuda.autoinit
import tensorflow as tf
...

As saw here.

You can check the size of an ArrayList using the size() method. This will return the maximum index +1

I add an information that could be useful for someone. If you have any storyboard segue, to go back to the old style, you need to set the kind property to Present Modally and the Presentation property to Full Screen.

Original answer

{
    void *mem = malloc(1024+16);
    void *ptr = ((char *)mem+16) & ~ 0x0F;
    memset_16aligned(ptr, 0, 1024);
    free(mem);
}

Fixed answer

{
    void *mem = malloc(1024+15);
    void *ptr = ((uintptr_t)mem+15) & ~ (uintptr_t)0x0F;
    memset_16aligned(ptr, 0, 1024);
    free(mem);
}

Explanation as requested

The first step is to allocate enough spare space, just in case. Since the memory must be 16-byte aligned (meaning that the leading byte address needs to be a multiple of 16), adding 16 extra bytes guarantees that we have enough space. Somewhere in the first 16 bytes, there is a 16-byte aligned pointer. (Note that malloc() is supposed to return a pointer that is sufficiently well aligned for any purpose. However, the meaning of 'any' is primarily for things like basic types — long, double, long double, long long, and pointers to objects and pointers to functions. When you are doing more specialized things, like playing with graphics systems, they can need more stringent alignment than the rest of the system — hence questions and answers like this.)

The next step is to convert the void pointer to a char pointer; GCC notwithstanding, you are not supposed to do pointer arithmetic on void pointers (and GCC has warning options to tell you when you abuse it). Then add 16 to the start pointer. Suppose malloc() returned you an impossibly badly aligned pointer: 0x800001. Adding the 16 gives 0x800011. Now I want to round down to the 16-byte boundary — so I want to reset the last 4 bits to 0. 0x0F has the last 4 bits set to one; therefore, ~0x0F has all bits set to one except the last four. Anding that with 0x800011 gives 0x800010. You can iterate over the other offsets and see that the same arithmetic works.

The last step, free(), is easy: you always, and only, return to free() a value that one of malloc(), calloc() or realloc() returned to you — anything else is a disaster. You correctly provided mem to hold that value — thank you. The free releases it.

Finally, if you know about the internals of your system's malloc package, you could guess that it might well return 16-byte aligned data (or it might be 8-byte aligned). If it was 16-byte aligned, then you'd not need to dink with the values. However, this is dodgy and non-portable — other malloc packages have different minimum alignments, and therefore assuming one thing when it does something different would lead to core dumps. Within broad limits, this solution is portable.

Someone else mentioned posix_memalign() as another way to get the aligned memory; that isn't available everywhere, but could often be implemented using this as a basis. Note that it was convenient that the alignment was a power of 2; other alignments are messier.

One more comment — this code does not check that the allocation succeeded.

Amendment

Windows Programmer pointed out that you can't do bit mask operations on pointers, and, indeed, GCC (3.4.6 and 4.3.1 tested) does complain like that. So, an amended version of the basic code — converted into a main program, follows. I've also taken the liberty of adding just 15 instead of 16, as has been pointed out. I'm using uintptr_t since C99 has been around long enough to be accessible on most platforms. If it wasn't for the use of PRIXPTR in the printf() statements, it would be sufficient to #include <stdint.h> instead of using #include <inttypes.h>. [This code includes the fix pointed out by C.R., which was reiterating a point first made by Bill K a number of years ago, which I managed to overlook until now.]

#include <assert.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

static void memset_16aligned(void *space, char byte, size_t nbytes)
{
    assert((nbytes & 0x0F) == 0);
    assert(((uintptr_t)space & 0x0F) == 0);
    memset(space, byte, nbytes);  // Not a custom implementation of memset()
}

int main(void)
{
    void *mem = malloc(1024+15);
    void *ptr = (void *)(((uintptr_t)mem+15) & ~ (uintptr_t)0x0F);
    printf("0x%08" PRIXPTR ", 0x%08" PRIXPTR "\n", (uintptr_t)mem, (uintptr_t)ptr);
    memset_16aligned(ptr, 0, 1024);
    free(mem);
    return(0);
}

And here is a marginally more generalized version, which will work for sizes which are a power of 2:

#include <assert.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

static void memset_16aligned(void *space, char byte, size_t nbytes)
{
    assert((nbytes & 0x0F) == 0);
    assert(((uintptr_t)space & 0x0F) == 0);
    memset(space, byte, nbytes);  // Not a custom implementation of memset()
}

static void test_mask(size_t align)
{
    uintptr_t mask = ~(uintptr_t)(align - 1);
    void *mem = malloc(1024+align-1);
    void *ptr = (void *)(((uintptr_t)mem+align-1) & mask);
    assert((align & (align - 1)) == 0);
    printf("0x%08" PRIXPTR ", 0x%08" PRIXPTR "\n", (uintptr_t)mem, (uintptr_t)ptr);
    memset_16aligned(ptr, 0, 1024);
    free(mem);
}

int main(void)
{
    test_mask(16);
    test_mask(32);
    test_mask(64);
    test_mask(128);
    return(0);
}

To convert test_mask() into a general purpose allocation function, the single return value from the allocator would have to encode the release address, as several people have indicated in their answers.

Problems with interviewers

Uri commented: Maybe I am having [a] reading comprehension problem this morning, but if the interview question specifically says: "How would you allocate 1024 bytes of memory" and you clearly allocate more than that. Wouldn't that be an automatic failure from the interviewer?

My response won't fit into a 300-character comment...

It depends, I suppose. I think most people (including me) took the question to mean "How would you allocate a space in which 1024 bytes of data can be stored, and where the base address is a multiple of 16 bytes". If the interviewer really meant how can you allocate 1024 bytes (only) and have it 16-byte aligned, then the options are more limited.

• Clearly, one possibility is to allocate 1024 bytes and then give that address the 'alignment treatment'; the problem with that approach is that the actual available space is not properly determinate (the usable space is between 1008 and 1024 bytes, but there wasn't a mechanism available to specify which size), which renders it less than useful.
• Another possibility is that you are expected to write a full memory allocator and ensure that the 1024-byte block you return is appropriately aligned. If that is the case, you probably end up doing an operation fairly similar to what the proposed solution did, but you hide it inside the allocator.

However, if the interviewer expected either of those responses, I'd expect them to recognize that this solution answers a closely related question, and then to reframe their question to point the conversation in the correct direction. (Further, if the interviewer got really stroppy, then I wouldn't want the job; if the answer to an insufficiently precise requirement is shot down in flames without correction, then the interviewer is not someone for whom it is safe to work.)

The world moves on

The title of the question has changed recently. It was Solve the memory alignment in C interview question that stumped me. The revised title (How to allocate aligned memory only using the standard library?) demands a slightly revised answer — this addendum provides it.

C11 (ISO/IEC 9899:2011) added function aligned_alloc():

7.22.3.1 The aligned_alloc function

Synopsis

#include <stdlib.h>
void *aligned_alloc(size_t alignment, size_t size);

Description
The aligned_alloc function allocates space for an object whose alignment is specified by alignment, whose size is specified by size, and whose value is indeterminate. The value of alignment shall be a valid alignment supported by the implementation and the value of size shall be an integral multiple of alignment.

Returns
The aligned_alloc function returns either a null pointer or a pointer to the allocated space.

And POSIX defines posix_memalign():

#include <stdlib.h>

int posix_memalign(void **memptr, size_t alignment, size_t size);

DESCRIPTION

The posix_memalign() function shall allocate size bytes aligned on a boundary specified by alignment, and shall return a pointer to the allocated memory in memptr. The value of alignment shall be a power of two multiple of sizeof(void *).

Upon successful completion, the value pointed to by memptr shall be a multiple of alignment.

If the size of the space requested is 0, the behavior is implementation-defined; the value returned in memptr shall be either a null pointer or a unique pointer.

The free() function shall deallocate memory that has previously been allocated by posix_memalign().

RETURN VALUE

Upon successful completion, posix_memalign() shall return zero; otherwise, an error number shall be returned to indicate the error.

Either or both of these could be used to answer the question now, but only the POSIX function was an option when the question was originally answered.

Behind the scenes, the new aligned memory function do much the same job as outlined in the question, except they have the ability to force the alignment more easily, and keep track of the start of the aligned memory internally so that the code doesn't have to deal with specially — it just frees the memory returned by the allocation function that was used.

LayoutInflater is used to generate dynamic views of the XML for the ListView item or in onCreateView of the fragment.

ConvertView is basically used to recycle the views which are not in the view currently. Say you have a scrollable ListView. On scrolling down or up, the convertView gives the view which was scrolled. This reusage saves memory.

The parent parameter of the getView() method gives a reference to the parent layout which has the listView. Say you want to get the Id of any item in the parent XML you can use:

ViewParent nv = parent.getParent();

while (nv != null) {

    if (View.class.isInstance(nv)) {
        final View button = ((View) nv).findViewById(R.id.remove);
        if (button != null) {
            // FOUND IT!
            // do something, then break;
            button.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub
                    Log.d("Remove", "Remove clicked");

                    ((Button) button).setText("Hi");
                }
            });
        }
        break;
    }

 }

I found these lists on Scott Hanselman's blog:

• What Great .NET Developers Ought To Know (More .NET Interview Questions)
• ASP.NET Interview Questions

Here are what I think are the most important questions from these posts divided into categories. I edited and re-arranged them. Fortunately for most of these questions there is already a good answer on Stack Overflow. Just follow the links (I will update them all ASAP).

Platform independent .NET questions

• What is the difference between a thread and a process?
• What is the difference between an EXE and a DLL?
• What is strong-typing versus weak-typing?
• What is the difference between a.Equals(b) and a == b?
• What is boxing?
• Is string a value type or a reference type?
• What is the Global Assembly Cache (GAC)? What problem does it solve?
• What is an Interface and how is it different from a Class?
• What is Reflection?
• Conceptually, what is the difference between early-binding and late-binding?
• When would using Assembly.LoadFrom or Assembly.LoadFile be appropriate?
• What is an Asssembly Qualified Name? Is it a filename? How is it different?
• How is a strongly-named assembly different from one that isn’t strongly-named?
• What does this do? sn -t foo.dll
• How does the generational garbage collector in the .NET CLR manage object lifetime? What is non-deterministic finalization?
• What is the difference between Finalize() and Dispose()? (external article)
• What is the difference between in-proc and out-of-proc? What technology enables out-of-proc communication in .NET?
• What is FullTrust? Do GAC’ed assemblies have FullTrust?
• What is the difference between Debug.Write and Trace.Write? When should each be used?
• What is the difference between a Debug and Release build? Is there a significant speed difference? Why or why not?
• What is the difference between: catch (Exception e) {throw e;} and catch (Exception e) {throw;} ?
• What is the difference between typeof(foo) and myFoo.GetType()?
• What is the purpose of XML Namespaces?
• What is the difference between an XML "Fragment" and an XML "Document"? (XML Basics)
• How would you validate XML using .NET?

ASP.NET

• What is a PostBack?
• What is ViewState? How is it encoded? Is it encrypted? Who uses ViewState? Why is it either useful or evil?
• What Session State providers are available in ASP.NET? What are the pros and cons of each?
• What is the OO relationship between an ASPX page and its CS/VB code behind file?
• How would one implement ASP.NET HTML output caching, caching outgoing versions of pages generated via all values of q= except where q=5 (as in http://localhost/page.aspx?q=5)?
• What are HttpHandlers?
• What are HttpModules?
• What is needed to configure a new extension for use in ASP.NET? For example, what if I wanted my system to serve ASPX files with a *.jsp extension?
• How do cookies work? What is an example of Cookie abuse?
• What kind of data is passed via HTTP Headers?
• How does IIS communicate at runtime with ASP.NET? Where is ASP.NET at runtime in the different versions of IIS (5 to 7)?

For centos7 I required: sudo yum install mysql-devel gcc python-pip python-devel sudo pip install mysql-python

So, gcc and mysql-devel (rather than mysql) were important

$("#commentForm").validate({
    rules: {
     cname : { required : true, minlength: 2 }
    }
});

Should be something like that, I've just typed this up in the editor here so might be a syntax error or two, but you should be able to follow the pattern and the documentation

C# Thread.Abort is NOT guaranteed to abort the thread instantaneously. It will probably work when a thread calls Abort on itself but not when a thread calls on another.

Please refer to the documentation: http://msdn.microsoft.com/en-us/library/ty8d3wta.aspx

I have faced this problem writing tools that interact with hardware - you want immediate stop but it is not guaranteed. I typically use some flags or other such logic to prevent execution of parts of code running on a thread (and which I do not want to be executed on abort - tricky).

Here is a concise summary of what most answers are talking about.

Let's say we have two variables and $1 is set to 'one':

set one two
a=hello
b=world

The table below explains the different contexts where we can combine the values of a and b to create a new variable, c.

Context                               | Expression            | Result (value of c)
--------------------------------------+-----------------------+---------------------
Two variables                         | c=$a$b                | helloworld
A variable and a literal              | c=${a}_world          | hello_world
A variable and a literal              | c=$1world             | oneworld
A variable and a literal              | c=$a/world            | hello/world
A variable, a literal, with a space   | c=${a}" world"        | hello world
A more complex expression             | c="${a}_one|${b}_2"   | hello_one|world_2
Using += operator (Bash 3.1 or later) | c=$a; c+=$b           | helloworld
Append literal with +=                | c=$a; c+=" world"     | hello world

A few notes:

• enclosing the RHS of an assignment in double quotes is generally a good practice, though it is quite optional in many cases
• += is better from a performance standpoint if a big string is being constructed in small increments, especially in a loop
• use {} around variable names to disambiguate their expansion (as in row 2 in the table above). As seen on rows 3 and 4, there is no need for {} unless a variable is being concatenated with a string that starts with a character that is a valid first character in shell variable name, that is alphabet or underscore.

See also:

• BashFAQ/013 - How can I concatenate two variables?
• When do we need curly braces around shell variables?

<input type="text" placeholder="specify">

This adds "specify" as tool-tip text inside the input box.

In Angular (currently on Angular-6) .subscribe() is a method on the Observable type. The Observable type is a utility that asynchronously or synchronously streams data to a variety of components or services that have subscribed to the observable.

The observable is an implementation/abstraction over the promise chain and will be a part of ES7 as a proposed and very supported feature. In Angular it is used internally due to rxjs being a development dependency.

An observable itself can be thought of as a stream of data coming from a source, in Angular this source is an API-endpoint, a service, a database or another observable. But the power it has is that it's not expecting a single response. It can have one or many values that are returned.

Link to rxjs for observable/subscribe docs here: https://rxjs-dev.firebaseapp.com/api/index/class/Observable#subscribe-

Subscribe takes 3 methods as parameters each are functions:

• next: For each item being emitted by the observable perform this function
• error: If somewhere in the stream an error is found, do this method
• complete: Once all items are complete from the stream, do this method

Within each of these, there is the potentional to pipe (or chain) other utilities called operators onto the results to change the form or perform some layered logic.

In the simple example above:

.subscribe(hero => this.hero = hero); basically says on this observable take the hero being emitted and set it to this.hero.

Adding this answer to give more context to Observables based off the documentation and my understanding.

While Mobile Android may have "mobile" in it's user-agent string, what if it's using Opera Mobile for Android on a Tablet? It'll still have "mobile" in it's user-agent string, but should be displaying Tablet-sized sites. You'll need to test for "mobile" that is not preceded by "opera" rather than just "mobile"

or you could just forget about Opera Mobile.

I used string to concatenate new object to an existing object.

private static void concatJSON() throws IOException, InterruptedException {

    JSONParser parser = new JSONParser();
    Object obj = parser.parse(new FileReader(new File(Main.class.getResource("/file/user.json").toURI())));


    JSONObject jsonObj = (JSONObject) obj; //usernameJsonObj

    String [] values = {"0.9" , Date.from(Calendar.getInstance().toInstant()).toLocaleString()},
            innermost = {"Accomplished", "LatestDate"}, 
            inner = {"Lesson1", "Lesson2", "Lesson3", "Lesson4"};
    String in = "Jayvee Villa";

    JSONObject jo1 = new JSONObject();
    for (int i = 0; i < innermost.length; i++)
        jo1.put(innermost[i], values[i]);

    JSONObject jo2 = new JSONObject();
    for (int i = 0; i < inner.length; i++)
        jo2.put(inner[i], jo1);

    JSONObject jo3 = new JSONObject();
    jo3.put(in, jo2);

    String merger = jsonObj.toString().substring(0, jsonObj.toString().length()-1) + "," +jo3.toString().substring(1);

    System.out.println(merger);
    FileWriter pr = new FileWriter(file);
    pr.write(merger);
    pr.flush();
    pr.close();
}

       $date = strtotime($row['timestamp']);
       $newdate = date('d-m-Y',strtotime("+1 year",$date));

String value = "{first_name = naresh,last_name = kumar,gender = male}"

Let's start

1. Remove { and } from the String>>first_name = naresh,last_name = kumar,gender = male
2. Split the String from ,>> array of 3 element
3. Now you have an array with 3 element
4. Iterate the array and split each element by =
5. Create a Map<String,String> put each part separated by =. first part as Key and second part as Value

I had a same problem and i could fixed it! you should add C:\Program Files (x86)\Microsoft SDKs\Windows\v7.1A\Lib\x64 for 64 bit system / C:\Program Files (x86)\Microsoft SDKs\Windows\v7.1A\Lib for 32 bit system in property manager-> Linker-> General->Additional library Directories

maybe it can solve the problem of somebody in the future!

also you can export it like this

const func1 = function (){some code here}
const func2 = function (){some code here}
exports.func1 = func1;
exports.func2 = func2;

or for anonymous functions like this

    const func1 = ()=>{some code here}
    const func2 = ()=>{some code here}
    exports.func1 = func1;
    exports.func2 = func2;

You can either have the newly inserted ID being output to the SSMS console like this:

INSERT INTO MyTable(Name, Address, PhoneNo)
OUTPUT INSERTED.ID
VALUES ('Yatrix', '1234 Address Stuff', '1112223333')

You can use this also from e.g. C#, when you need to get the ID back to your calling app - just execute the SQL query with .ExecuteScalar() (instead of .ExecuteNonQuery()) to read the resulting ID back.

Or if you need to capture the newly inserted ID inside T-SQL (e.g. for later further processing), you need to create a table variable:

DECLARE @OutputTbl TABLE (ID INT)

INSERT INTO MyTable(Name, Address, PhoneNo)
OUTPUT INSERTED.ID INTO @OutputTbl(ID)
VALUES ('Yatrix', '1234 Address Stuff', '1112223333')

This way, you can put multiple values into @OutputTbl and do further processing on those. You could also use a "regular" temporary table (#temp) or even a "real" persistent table as your "output target" here.

Write-Back is a more complex one and requires a complicated Cache Coherence Protocol(MOESI) but it is worth it as it makes the system fast and efficient.

The only benefit of Write-Through is that it makes the implementation extremely simple and no complicated cache coherency protocol is required.

Instead of using Bitmap, you can also do this through a trivial InputStream. Well, I am not sure, but I think it's a bit efficient.

InputStream inputStream = new FileInputStream(fileName); // You can get an inputStream using any I/O API
byte[] bytes;
byte[] buffer = new byte[8192];
int bytesRead;
ByteArrayOutputStream output = new ByteArrayOutputStream();

try {
    while ((bytesRead = inputStream.read(buffer)) != -1) {
        output.write(buffer, 0, bytesRead);
    }
}
catch (IOException e) {
    e.printStackTrace();
}

bytes = output.toByteArray();
String encodedString = Base64.encodeToString(bytes, Base64.DEFAULT);

Make clickable icon to focus inside the text input element.

CSS

.myClass {
    font-size:20px;
    position:absolute; top:10px; left:10px;
}

HTML

<div>
    <label style="position:relative;">
         <i class="myClass fa fa-address-book-o"></i>
         <input class="w3-input" type="text" style="padding-left:40px;">
    </label>
</div>

Just add whichever icon you like inside the <i> tag, from Font Awesome library and enjoy the results.

Here's a great working example project; Tesseract OCR Sample (Visual Studio) with Leptonica Preprocessing Tesseract OCR Sample (Visual Studio) with Leptonica Preprocessing

Tesseract OCR 3.02.02 API can be confusing, so this guides you through including the Tesseract and Leptonica dll into a Visual Studio C++ Project, and provides a sample file which takes an image path to preprocess and OCR. The preprocessing script in Leptonica converts the input image into black and white book-like text.

Setup

To include this in your own projects, you will need to reference the header files and lib and copy the tessdata folders and dlls.

Copy the tesseract-include folder to the root folder of your project. Now Click on your project in Visual Studio Solution Explorer, and go to Project>Properties.

VC++ Directories>Include Directories:

..\tesseract-include\tesseract;..\tesseract-include\leptonica;$(IncludePath) C/C++>Preprocessor>Preprocessor Definitions:

_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions) C/C++>Linker>Input>Additional Dependencies:

..\tesseract-include\libtesseract302.lib;..\tesseract-include\liblept168.lib;%(AdditionalDependencies) Now you can include headers in your project's file:

include

include

Now copy the two dll files in tesseract-include and the tessdata folder in Debug to the Output Directory of your project.

When you initialize tesseract, you need to specify the location of the parent folder (!important) of the tessdata folder if it is not already the current directory of your executable file. You can copy my script, which assumes tessdata is installed in the executable's folder.

tesseract::TessBaseAPI *api = new tesseract::TessBaseAPI(); api->Init("D:\tessdataParentFolder\", ... Sample

You can compile the provided sample, which takes one command line argument of the image path to use. The preprocess() function uses Leptonica to create a black and white book-like copy of the image which makes tesseract work with 90% accuracy. The ocr() function shows the functionality of the Tesseract API to return a string output. The toClipboard() can be used to save text to clipboard on Windows. You can copy these into your own projects.

    let trimString = function (string, length) {
      return string.length > length ? 
             string.substring(0, length) + '...' :
             string;
    };

Use Case,

let string = 'How to trim a string to N chars in Javascript';

trimString(string, 20);

//How to trim a string...

I had this problem only the second time I went to export. Once I added:

response.getOutputStream().flush();
response.getOutputStream().close();

after the export was done, my code started working all of the time.

you are breaking React principles, you should clone the old state then merge it with the new data, you shouldn't manipulate your state directly, your code should go like this

fetch('http://localhost:8080').then(response => response.json()).then(json ={this.setState({mystate[...this.state.mystate, json]}) })

Wrap all those cases into one.

SELECT
    col1,
    col2,
    col3,
    CASE
        WHEN condition1 THEN calculation1 
        WHEN condition2 THEN calculation2
        WHEN condition3 THEN calculation3
        WHEN condition4 THEN calculation4
        WHEN condition5 THEN calculation5
        ELSE NULL         
    END AS 'calculatedcol1',
    col4,
    col5 -- etc
FROM table

You can call bash directly within your Makefile instead of using the default shell:

bash -c "ls -al"

instead of:

ls -al

Small And Better One

var i = 0;
$("#container > option").each(function(){ 
    if($(this).val().length > i) {
        i = $(this).val().length;

        console.log(i);
        console.log($(this).val());
    }
});

Here's one generalized from something I just used. I'm posting it since it's a very simple example, and it demonstrates a practical use case along with default arguments:

#include <vector>

template <class T> class Alloc final { /*...*/ };

template <template <class T> class allocator=Alloc> class MyClass final {
  public:
    std::vector<short,allocator<short>> field0;
    std::vector<float,allocator<float>> field1;
};

What I do is something just a little bit different from @Chase answer:

var employees = {};

// ...and then:
employees.accounting = new Array();

for (var i = 0; i < someArray.length; i++) {
    var temp_item = someArray[i];

    // Maybe, here make something like:
    // temp_item.name = 'some value'

    employees.accounting.push({
        "firstName" : temp_item.firstName,
        "lastName"  : temp_item.lastName,
        "age"       : temp_item.age
    });
}

And that work form me!

I hope it could be useful for some body else!

In my case I was using the default export, but not exporting a function or React.Component, but just a JSX element, i.e.

Error:

export default (<div>Hello World!</div>)

Works :

export default () => (<div>Hello World!</div>)

I'm pretty sure it's an Adobe standard, bearing in mind the whole PDF standard is theirs to begin with; despite being open now.

My guess would be no for all PDF viewers supporting it, as some definitely will not have a JS engine. I doubt you can rely on full support outside the most recent versions of Acrobat (Reader). So I guess it depends on how you imagine it being used, if mainly via a browser display, then the majority of the market is catered for by Acrobat (Reader) and Chrome's built-in viewer - dare say there is documentation on whether Chrome's PDF viewer supports JS fully.

You can list the commits by:

git cherry -v

And then compare with the following command where the number of ^ equals to the number of commits (in the example its 2 commits):

git diff HEAD^^

I don't see any mention of flexbox in here, so I will illustrate:

HTML

 <div class="wrapper">
   <div class="main">top</div>
   <div class="footer">bottom</div>
 </div>

CSS

 .wrapper {
   display: flex;
   flex-direction: column;
   min-height: 100vh;
  }
 .main {
   flex: 1;
 }
 .footer {
  flex: 0;
 }

put this line at the end of the body. May be the DOM is not ready yet at the moment this line is read by compiler.

<script type="text/javascript" src="script.js"></script>"

If you want to get the image from gallery or capture the image and set it to the imageview in portrait mode then following code will help you..

In onCreate()

imageViewRound.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            selectImage();
        }
    });




    private void selectImage() {
    Constants.iscamera = true;
    final CharSequence[] items = { "Take Photo", "Choose from Library",
            "Cancel" };

     TextView title = new TextView(context);
     title.setText("Add Photo!");
        title.setBackgroundColor(Color.BLACK);
        title.setPadding(10, 15, 15, 10);
        title.setGravity(Gravity.CENTER);
        title.setTextColor(Color.WHITE);
        title.setTextSize(22);


    AlertDialog.Builder builder = new AlertDialog.Builder(
            AddContactActivity.this);



    builder.setCustomTitle(title);

    // builder.setTitle("Add Photo!");
    builder.setItems(items, new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int item) {
            if (items[item].equals("Take Photo")) {
                // Intent intent = new
                // Intent(MediaStore.ACTION_IMAGE_CAPTURE);

                Intent intent = new Intent(
                        android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
                /*
                 * File photo = new
                 * File(Environment.getExternalStorageDirectory(),
                 * "Pic.jpg"); intent.putExtra(MediaStore.EXTRA_OUTPUT,
                 * Uri.fromFile(photo)); imageUri = Uri.fromFile(photo);
                 */
                // startActivityForResult(intent,TAKE_PICTURE);

                Intent intents = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

                fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);

                intents.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);

                // start the image capture Intent
                startActivityForResult(intents, TAKE_PICTURE);

            } else if (items[item].equals("Choose from Library")) {
                Intent intent = new Intent(
                        Intent.ACTION_PICK,
                        android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                intent.setType("image/*");
                startActivityForResult(
                        Intent.createChooser(intent, "Select Picture"),
                        SELECT_PICTURE);
            } else if (items[item].equals("Cancel")) {
                dialog.dismiss();
            }
        }
    });
    builder.show();
}




    @SuppressLint("NewApi")
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    switch (requestCode) {
    case SELECT_PICTURE:
        Bitmap bitmap = null;
        if (resultCode == RESULT_OK) {
            if (data != null) {


                try {
                    Uri selectedImage = data.getData();
                    String[] filePath = { MediaStore.Images.Media.DATA };
                    Cursor c = context.getContentResolver().query(
                            selectedImage, filePath, null, null, null);
                    c.moveToFirst();
                    int columnIndex = c.getColumnIndex(filePath[0]);
                    String picturePath = c.getString(columnIndex);
                    c.close();
                    imageViewRound.setVisibility(View.VISIBLE);
                    // Bitmap thumbnail =
                    // (BitmapFactory.decodeFile(picturePath));
                    Bitmap thumbnail = decodeSampledBitmapFromResource(
                            picturePath, 500, 500);

                    // rotated
                    Bitmap thumbnail_r = imageOreintationValidator(
                            thumbnail, picturePath);
                    imageViewRound.setBackground(null);
                    imageViewRound.setImageBitmap(thumbnail_r);
                    IsImageSet = true;
                } catch (Exception e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }

        break;
    case TAKE_PICTURE:
        if (resultCode == RESULT_OK) {

            previewCapturedImage();

        }

        break;
    }

}



 @SuppressLint("NewApi")
private void previewCapturedImage() {
    try {
        // hide video preview

        imageViewRound.setVisibility(View.VISIBLE);

        // bimatp factory
        BitmapFactory.Options options = new BitmapFactory.Options();

        // downsizing image as it throws OutOfMemory Exception for larger
        // images
        options.inSampleSize = 8;

        final Bitmap bitmap = BitmapFactory.decodeFile(fileUri.getPath(),
                options);

        Bitmap resizedBitmap = Bitmap.createScaledBitmap(bitmap, 500, 500,
                false);

        // rotated
        Bitmap thumbnail_r = imageOreintationValidator(resizedBitmap,
                fileUri.getPath());

        imageViewRound.setBackground(null);
        imageViewRound.setImageBitmap(thumbnail_r);
        IsImageSet = true;
        Toast.makeText(getApplicationContext(), "done", Toast.LENGTH_LONG)
                .show();
    } catch (NullPointerException e) {
        e.printStackTrace();
    }
}






    // for roted image......
private Bitmap imageOreintationValidator(Bitmap bitmap, String path) {

    ExifInterface ei;
    try {
        ei = new ExifInterface(path);
        int orientation = ei.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                ExifInterface.ORIENTATION_NORMAL);
        switch (orientation) {
        case ExifInterface.ORIENTATION_ROTATE_90:
            bitmap = rotateImage(bitmap, 90);
            break;
        case ExifInterface.ORIENTATION_ROTATE_180:
            bitmap = rotateImage(bitmap, 180);
            break;
        case ExifInterface.ORIENTATION_ROTATE_270:
            bitmap = rotateImage(bitmap, 270);
            break;
        }
    } catch (IOException e) {
        e.printStackTrace();
    }

    return bitmap;
}



private Bitmap rotateImage(Bitmap source, float angle) {

    Bitmap bitmap = null;
    Matrix matrix = new Matrix();
    matrix.postRotate(angle);
    try {
        bitmap = Bitmap.createBitmap(source, 0, 0, source.getWidth(),
                source.getHeight(), matrix, true);
    } catch (OutOfMemoryError err) {
        source.recycle();
        Date d = new Date();
        CharSequence s = DateFormat
                .format("MM-dd-yy-hh-mm-ss", d.getTime());
        String fullPath = Environment.getExternalStorageDirectory()
                + "/RYB_pic/" + s.toString() + ".jpg";
        if ((fullPath != null) && (new File(fullPath).exists())) {
            new File(fullPath).delete();
        }
        bitmap = null;
        err.printStackTrace();
    }
    return bitmap;
}




public static Bitmap decodeSampledBitmapFromResource(String pathToFile,
        int reqWidth, int reqHeight) {

    // First decode with inJustDecodeBounds=true to check dimensions
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    BitmapFactory.decodeFile(pathToFile, options);

    // Calculate inSampleSize
    options.inSampleSize = calculateInSampleSize(options, reqWidth,
            reqHeight);

    Log.e("inSampleSize", "inSampleSize______________in storage"
            + options.inSampleSize);
    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    return BitmapFactory.decodeFile(pathToFile, options);
}




public static int calculateInSampleSize(BitmapFactory.Options options,
        int reqWidth, int reqHeight) {
    // Raw height and width of image
    final int height = options.outHeight;
    final int width = options.outWidth;
    int inSampleSize = 1;

    if (height > reqHeight || width > reqWidth) {

        // Calculate ratios of height and width to requested height and
        // width
        final int heightRatio = Math.round((float) height
                / (float) reqHeight);
        final int widthRatio = Math.round((float) width / (float) reqWidth);

        // Choose the smallest ratio as inSampleSize value, this will
        // guarantee
        // a final image with both dimensions larger than or equal to the
        // requested height and width.
        inSampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;

    }

    return inSampleSize;
}




public String getPath(Uri uri) {
    String[] projection = { MediaStore.Images.Media.DATA };
    Cursor cursor = managedQuery(uri, projection, null, null, null);
    int column_index = cursor
            .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    cursor.moveToFirst();
    return cursor.getString(column_index);
}






private static File getOutputMediaFile(int type) {

    // External sdcard location
    File mediaStorageDir = new File(
            Environment
                    .getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
            IMAGE_DIRECTORY_NAME);

    // Create the storage directory if it does not exist
    if (!mediaStorageDir.exists()) {
        if (!mediaStorageDir.mkdirs()) {
            Log.d(IMAGE_DIRECTORY_NAME, "Oops! Failed create "
                    + IMAGE_DIRECTORY_NAME + " directory");
            return null;
        }
    }

    // Create a media file name
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss",
            Locale.getDefault()).format(new Date());
    File mediaFile;
    if (type == MEDIA_TYPE_IMAGE) {
        mediaFile = new File(mediaStorageDir.getPath() + File.separator
                + "IMG_" + timeStamp + ".jpg");
    } else {
        return null;
    }

    return mediaFile;
}






public Uri getOutputMediaFileUri(int type) {
    return Uri.fromFile(getOutputMediaFile(type));
}

Hope This will help you....!!!

If targetSdkVersion is higher than 24, then FileProvider is used to grant access.

Create an xml file(Path: res\xml) provider_paths.xml

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path name="external_files" path="."/>
</paths>

Add a Provider in AndroidManifest.xml

<provider
    android:name="android.support.v4.content.FileProvider"
    android:authorities="${applicationId}.provider"
    android:exported="false"
    android:grantUriPermissions="true">
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/provider_paths"/>
</provider>

and replace

return Uri.fromFile(getOutputMediaFile(type));

To

               return FileProvider.getUriForFile(this,  BuildConfig.APPLICATION_ID + ".provider", getOutputMediaFile(type));

Work with:

ALTER TABLE `table` CHANGE `cust_fax` `cust_fax` VARCHAR(60) NULL DEFAULT NULL; 

Ruby seems to provide a poor solution. To explain, start with a simple C++ example that shows access to private class methods:

#include <iostream>

class C
{
    public:
        void instance_method(void)
        {
            std::cout << "instance method\n";
            class_method();  // !!! LOOK !!! no 'send' required. We can access it
                             // because 'private' allows access within the class
        }
    private:
        void static class_method(void) { std::cout << "class method\n"; }
};

int main()
{
    C c;

    c.instance_method(); // works
    // C::class_method() does not compile - it's properly private
    return 0;
}

Running the above

   % ./a.out
   instance method
   class method

Now Ruby does not seem to provide the equivalent. Ruby's rules, I think, are that private methods must not be accessed with a receiver. That is,

inst.pvt_method  # FAILS
pvt_method # WORKS only within the class (good)

That's OK for private instance methods, but causes problems with private class methods.

I would like Ruby to function this way:

class C
    def instance_method
        STDOUT << "instance method\n"

        # Simple access to the private class method would be nice:
        class_method   # DOES NOT WORK. RUBY WON'T FIND THE METHOD
        C.class_method # DOES NOT WORK. RUBY WON'T ALLOW IT

        # ONLY THIS WORKS. While I am happy such capability exists I think
        # the way 'send' should be used is when the coder knows he/she is
        # doing a no-no.  The semantic load on the coder for this is also
        # remarkably clumsy for an elegant language like ruby.
        self.class.send(:class_method)
    end

    private_class_method def self.class_method() STDOUT << "class method\n"; end
end

But, alas, the above does not work. Does someone know a better way?

When I see 'send' prior to a method, it's a clear sign the code is violating the intent of the API's designer, but in this case the design is specifically to have an instance method of the class call the private class method.

you can use the return statement without any parameter to exit a function

def foo(element):
    do something
    if check is true:
        do more (because check was succesful)
    else:
        return
    do much much more...

or raise an exception if you want to be informed of the problem

def foo(element):
    do something
    if check is true:
        do more (because check was succesful)
    else:
        raise Exception("cause of the problem")
    do much much more...

For Tomcat 8:

Linux :

Create setenv.sh and update it with following:

export SPRING_PROFILES_ACTIVE=dev

Windows:

Create setenv.bat and update it with following:

set SPRING_PROFILES_ACTIVE=dev

    wp_register_script('custom-js',WP_PLUGIN_URL.'/PLUGIN_NAME/js/custom.js',array(),NULL,true);
    wp_enqueue_script('custom-js');

    $wnm_custom = array( 'template_url' => get_bloginfo('template_url') );
    wp_localize_script( 'custom-js', 'wnm_custom', $wnm_custom );

and in custom.js

alert(wnm_custom.template_url);

Using this keyword we can call one constructor in another constructor within same class.

Example :-

 public class Example {
   
      private String name;
   
      public Example() {
          this("Mahesh");
      }

      public Example(String name) {
          this.name = name;
      }

 }

vector<vector<int>> board;
for(int i=0;i<m;i++) {
    board.push_back({});
    for(int j=0;j<n;j++) {
        board[i].push_back(0);
    }
}

This code snippet first inserts an empty vector at each turn, in the other nested loop it pushes the elements inside the vector created by the outer loop. Hope this solves the problem.

I often have this problem with date fields (where comparison operators are very common).

To elaborate further on Mihai's answer, which I believe is a solid approach.

To the models you can add scopes like this:

scope :updated_at_less_than, -> (date_param) { 
  where(arel_table[:updated_at].lt(date_param)) }

... and then in your controller, or wherever you are using your model:

result = MyModel.updated_at_less_than('01/01/2017')

... a more complex example with joins looks like this:

result = MyParentModel.joins(:my_model).
  merge(MyModel.updated_at_less_than('01/01/2017'))

A huge advantage of this approach is (a) it lets you compose your queries from different scopes and (b) avoids alias collisions when you join to the same table twice since arel_table will handle that part of the query generation.

Before creating a new branch always the best practice is to have the latest of repo in your local machine. Follow these steps for error free branch creation.

 1. $ git branch (check which branches exist and which one is currently active (prefixed with *). This helps you avoid creating duplicate/confusing branch name)
 2. $ git branch <new_branch> (creates new branch)
 3. $ git checkout new_branch
 4. $ git add . (After making changes in the current branch)
 5. $ git commit -m "type commit msg here"
 6. $ git checkout master (switch to master branch so that merging with new_branch can be done)
 7. $ git merge new_branch (starts merging)
 8. $ git push origin master (push to the remote server)

I referred this blog and I found it to be a cleaner approach.

There is no difference, except that Pragma is only defined as applicable to the requests by the client, whereas Cache-Control may be used by both the requests of the clients and the replies of the servers.

So, as far as standards go, they can only be compared from the perspective of the client making a requests and the server receiving a request from the client. The http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.32 defines the scenario as follows:

HTTP/1.1 caches SHOULD treat "Pragma: no-cache" as if the client had sent "Cache-Control: no-cache". No new Pragma directives will be defined in HTTP.

  Note: because the meaning of "Pragma: no-cache as a response
  header field is not actually specified, it does not provide a
  reliable replacement for "Cache-Control: no-cache" in a response

The way I would read the above:

• if you're writing a client and need no-cache:

  • just use Pragma: no-cache in your requests, since you may not know if Cache-Control is supported by the server;
  • but in replies, to decide on whether to cache, check for Cache-Control

• if you're writing a server:

  • in parsing requests from the clients, check for Cache-Control; if not found, check for Pragma: no-cache, and execute the Cache-Control: no-cache logic;
  • in replies, provide Cache-Control.

Of course, reality might be different from what's written or implied in the RFC!

You can remove public keyword from your functions, because, you have to define a class in order to declare public, private or protected function

You get this error when attempting to use the short array push syntax on a string.

For example, this

$foo = 'foo';
$foo[] = 'bar'; // ERROR!

I'd hazard a guess that one or more of your $name, $date, $text or $date2 variables has been initialised as a string.

Edit: Looking again at your question, it looks like you don't actually want to use them as arrays as you're treating them as strings further down.

If so, change your assignments to

$name = $row['name'];
$date = $row['date'];
$text = $row['text'];
$date2 = $row['date2'];

It seems there are some issues with PHP 7 and code using the empty-index array push syntax.

To make it clear, these work fine in PHP 7+

$previouslyUndeclaredVariableName[] = 'value'; // creates an array and adds one entry

$emptyArray = []; // creates an array
$emptyArray[] = 'value'; // pushes in an entry

What does not work is attempting to use empty-index push on any variable declared as a string, number, object, etc, ie

$declaredAsString = '';
$declaredAsString[] = 'value';

$declaredAsNumber = 1;
$declaredAsNumber[] = 'value';

$declaredAsObject = new stdclass();
$declaredAsObject[] = 'value';

All result in a fatal error.

I agree with @bortunac's solution. my.conf is mysql specific while netstat will provide you with all the listening ports.

Perhaps use both, one to confirm which is port set for mysql and the other to check that the system is listening through that port.

My client uses CentOS 6.6 and I have found the my.conf file under /etc/, so I used:

grep port /etc/my.conf (CentOS 6.6)

For OS X users (Mojave 10.14.3)

Here is what i use in my Bash script to test if Docker is running or not

# Check if docker is running
if ! docker info >/dev/null 2>&1; then
    echo "Docker does not seem to be running, run it first and retry"
    exit 1
fi

Use the Find method if item_manuf_id is a primary key:

var result = dtPs.Rows.Find("some value");

If you only want to know if the value is in there then use the Contains method.

if (dtPs.Rows.Contains("some value"))
{
  ...
}

Primary key restriction applies to Contains aswell.

I think it is telling you exactly what is wrong. You cannot compare an integer with a varchar. PostgreSQL is strict and does not do any magic typecasting for you. I'm guessing SQLServer does typecasting automagically (which is a bad thing).

If you want to compare these two different beasts, you will have to cast one to the other using the casting syntax ::.

Something along these lines:

create view view1
as 
select table1.col1,table2.col1,table3.col3
from table1 
inner join
table2 
inner join 
table3
on 
table1.col4::varchar = table2.col5
/* Here col4 of table1 is of "integer" type and col5 of table2 is of type "varchar" */
/* ERROR: operator does not exist: integer = character varying */
....;

Notice the varchar typecasting on the table1.col4.

Also note that typecasting might possibly render your index on that column unusable and has a performance penalty, which is pretty bad. An even better solution would be to see if you can permanently change one of the two column types to match the other one. Literately change your database design.

Or you could create a index on the casted values by using a custom, immutable function which casts the values on the column. But this too may prove suboptimal (but better than live casting).

Another option using Sql Server 2005 and above

---- test data
declare @t table (OUTPUTID int, SCHME varchar(10), DESCR varchar(10))
insert @t select 1125439       ,'CKT','Approved'
insert @t select 1125439       ,'RENO','Approved'
insert @t select 1134691       ,'CKT','Approved'
insert @t select 1134691       ,'RENO','Approved'
insert @t select 1134691       ,'pn','Approved'

---- actual query
;with cte(outputid,combined,rn)
as
(
  select outputid, SCHME + ' ('+DESCR+')', rn=ROW_NUMBER() over (PARTITION by outputid order by schme, descr)
  from @t
)
,cte2(outputid,finalstatus,rn)
as
(
select OUTPUTID, convert(varchar(max),combined), 1 from cte where rn=1
union all
select cte2.outputid, convert(varchar(max),cte2.finalstatus+', '+cte.combined), cte2.rn+1
from cte2
inner join cte on cte.OUTPUTID = cte2.outputid and cte.rn=cte2.rn+1
)
select outputid, MAX(finalstatus) from cte2 group by outputid

A mutable variable is one whose value may change in place, whereas in an immutable variable change of value will not happen in place. Modifying an immutable variable will rebuild the same variable.

If you want to see the array as an array, you can say

alert(JSON.stringify(aCustomers));

instead of all those document.writes.

http://jsfiddle.net/5b2eb/

However, if you want to display them cleanly, one per line, in your popup, do this:

alert(aCustomers.join("\n"));

http://jsfiddle.net/5b2eb/1/

I have the same problem. Following the first step above i was able to clone, but I cannot do anything else. Can't fetch, pull or checkout old branches.

Each command runs much slower than usual, then dies after compressing the objects.

I:\dev [master +0 ~6 -0]> git fetch --unshallow
remote: Counting objects: 645483, done.
remote: Compressing objects: 100% (136865/136865), done.

error: RPC failed; result=18, HTTP code = 20082 MiB | 6.26 MiB/s

fatal: early EOF

fatal: The remote end hung up unexpectedly

fatal: index-pack failed

This also happens when your ref's are using too much memory. Pruning the memory fixed this for me. Just add a limit to what you fetching like so ->

git fetch --depth=100

This will fetch the files but with the last 100 edits in their histories. After this, you can do any command just fine and at normal speed.

I believe this technically answers the question, but don't do this at home. At the moment, all answers involve creating a new tuple, but you can use ctypes to modify a tuple in-memory. Relying on various implementation details of CPython on a 64-bit system, one way to do this is as follows:

def modify_tuple(t, idx, new_value):
    # `id` happens to give the memory address in CPython; you may
    # want to use `ctypes.addressof` instead.
    element_ptr = (ctypes.c_longlong).from_address(id(t) + (3 + idx)*8)
    element_ptr.value = id(new_value)
    # Manually increment the reference count to `new_value` to pretend that
    # this is not a terrible idea.
    ref_count = (ctypes.c_longlong).from_address(id(new_value))
    ref_count.value += 1

t = (10, 20, 30)
modify_tuple(t, 1, 50)   # t is now (10, 50, 30)
modify_tuple(t, -1, 50)  # Will probably crash your Python runtime

I wrote an assembly binding log viewer named Fusion++ and put it on GitHub.

You can get the latest release from here or via chocolatey (choco install fusionplusplus).

I hope you and some of the visitors in here can save some worthy lifetime minutes with it.

for flutter project, if the run button is disabled then you have to

tools>> flutter>> flutter packages get >>enter your flutter sdk path >>finish

This should solve your problem...

This will work everywhere.

<body>
  <table style="table-layout:fixed;">
  <tr>
    <td><div style="word-wrap: break-word; width: 100px" > gdfggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg</div></td>
  </tr>
  </table>
 </body>

I am really new to PowerShell, and I was searching about gmailing from PowerShell. I took what you folks did in previous answers, and modified it a bit and have come up with a script which will check for attachments before adding them, and also to take an array of recipients.

## Send-Gmail.ps1 - Send a gmail message
## By Rodney Fisk - [email protected]
## 2 / 13 / 2011

# Get command line arguments to fill in the fields
# Must be the first statement in the script
param(
    [Parameter(Mandatory = $true,
               Position = 0,
               ValueFromPipelineByPropertyName = $true)]
    [Alias('From')] # This is the name of the parameter e.g. -From [email protected]
    [String]$EmailFrom, # This is the value [Don't forget the comma at the end!]

    [Parameter(Mandatory = $true,
               Position = 1,
               ValueFromPipelineByPropertyName = $true)]
    [Alias('To')]
    [String[]]$Arry_EmailTo,

    [Parameter(Mandatory = $true,
               Position = 2,
               ValueFromPipelineByPropertyName = $true)]
    [Alias('Subj')]
    [String]$EmailSubj,

    [Parameter(Mandatory = $true,
               Position = 3,
               ValueFromPipelineByPropertyName = $true)]
    [Alias('Body')]
    [String]$EmailBody,

    [Parameter(Mandatory = $false,
               Position = 4,
               ValueFromPipelineByPropertyName = $true)]
    [Alias('Attachment')]
    [String[]]$Arry_EmailAttachments
)

# From Christian @ stackoverflow.com
$SMTPServer = "smtp.gmail.com"
$SMTPClient = New-Object Net.Mail.SMTPClient($SmtpServer, 587)
$SMTPClient.EnableSSL = $true
$SMTPClient.Credentials = New-Object System.Net.NetworkCredential("GMAIL_USERNAME", "GMAIL_PASSWORD");

# From Core @ stackoverflow.com
$emailMessage = New-Object System.Net.Mail.MailMessage
$emailMessage.From = $EmailFrom
foreach ($recipient in $Arry_EmailTo)
{
    $emailMessage.To.Add($recipient)
}
$emailMessage.Subject = $EmailSubj
$emailMessage.Body = $EmailBody
# Do we have any attachments?
# If yes, then add them, if not, do nothing
if ($Arry_EmailAttachments.Count -ne $NULL)
{
    $emailMessage.Attachments.Add()
}
$SMTPClient.Send($emailMessage)

Of course, change the GMAIL_USERNAME and GMAIL_PASSWORD values to your particular user and password.

For intel drivers, there is also this method

Disable Vertical Synchronization (VSYNC)

The intel-driver uses Triple Buffering for vertical synchronization, this allows for full performance and avoids tearing. To turn vertical synchronization off (e.g. for benchmarking) use this .drirc in your home directory:

<device screen="0" driver="dri2">
    <application name="Default">
        <option name="vblank_mode" value="0"/>
    </application>
</device>

Spreading the tasks evenly, in short optimizing each and every aspect including DBs, Files, Images, CSS etc. and balancing the load with several other resources is necessary once your site/application starts growing. OR you make some more space for it to grow. Implementation of latest technologies like CDN, Cloud are must with huge sites. Just developing and tweaking an application won't give your the cent percent satisfation, other components also play an important role.

Using furl and regex (python 3)

>>> import re
>>> import furl
>>> p = re.compile(r'(\/)+')
>>> url = furl.furl('/media/path').add(path='/js/foo.js').url
>>> url
'/media/path/js/foo.js'
>>> p.sub(r"\1", url)
'/media/path/js/foo.js'
>>> url = furl.furl('/media/path').add(path='js/foo.js').url
>>> url
'/media/path/js/foo.js'
>>> p.sub(r"\1", url)
'/media/path/js/foo.js'
>>> url = furl.furl('/media/path/').add(path='js/foo.js').url
>>> url
'/media/path/js/foo.js'
>>> p.sub(r"\1", url)
'/media/path/js/foo.js'
>>> url = furl.furl('/media///path///').add(path='//js///foo.js').url
>>> url
'/media///path/////js///foo.js'
>>> p.sub(r"\1", url)
'/media/path/js/foo.js'

Primary keys are for uniquely identifying rows. This is done by comparing all parts of a key to the input.

Per definition, NULL cannot be part of a successful comparison. Even a comparison to itself (NULL = NULL) will fail. This means a key containing NULL would not work.

Additonally, NULL is allowed in a foreign key, to mark an optional relationship.^(*) Allowing it in the PK as well would break this.

^(*)A word of caution: Having nullable foreign keys is not clean relational database design.

If there are two entities A and B where A can optionally be related to B, the clean solution is to create a resolution table (let's say AB). That table would link A with B: If there is a relationship then it would contain a record, if there isn't then it would not.

You reference a Linux distribution, so you need to install the readline development libraries

On Debian based platforms, like Ubuntu, you can run:

sudo apt-get install libreadline-dev 

and that should install the correct headers in the correct places,.

If you use a platform with yum, like SUSE, then the command should be:

yum install readline-devel

Additionally, if you want the flexibility of choosing the width, you can choose between one of the following two formats (with or without truncation):

int width = 30;
// No truncation uses %-*s
printf( "%-*s %s\n", width, "Starting initialization...", "Ok." );
// Output is "Starting initialization...     Ok."

// Truncated to the specified width uses %-.*s
printf( "%-.*s %s\n", width, "Starting initialization...", "Ok." );
// Output is "Starting initialization... Ok."

In your invoke web request just use the parameter -UseBasicParsing

e.g. in your script (line 2) you should use:

$rss = Invoke-WebRequest -UseBasicParsing

According to the documentation, this parameter is necessary on systems where IE isn't installed or configured.

Uses the response object for HTML content without Document Object Model (DOM) parsing. This parameter is required when Internet Explorer is not installed on the computers, such as on a Server Core installation of a Windows Server operating system.

Update: More useful information What does <meta http-equiv="X-UA-Compatible" content="IE=edge"> do?

Maybe this url can help you: Activating Browser Modes with Doctype

Edit: Today we were able to override the compatibility view with: <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" />

You also need to replace your indexes:

class RenameOldTableToNewTable< ActiveRecord:Migration
  def self.up
    remove_index :old_table_name, :column_name
    rename_table :old_table_name, :new_table_name
    add_index :new_table_name, :column_name
  end 

  def self.down
    remove_index :new_table_name, :column_name
    rename_table :new_table_name, :old_table_name
    add_index :old_table_name, :column_name
  end
end

And rename your files etc, manually as other answers here describe.

See: http://api.rubyonrails.org/classes/ActiveRecord/Migration.html

Make sure you can rollback and roll forward after you write this migration. It can get tricky if you get something wrong and get stuck with a migration that tries to effect something that no longer exists. Best trash the whole database and start again if you can't roll back. So be aware you might need to back something up.

Also: check schema_db for any relevant column names in other tables defined by a has_ or belongs_to or something. You'll probably need to edit those too.

And finally, doing this without a regression test suite would be nuts.

Here is a very simple and clean way to push your changes after you have already made a git add "your files" and git commit --amend:

git push origin master -f

or:

git push origin master --force

Check if any SDK platform was partially installed. If it does, reinstall it.

Building off the above (great!) answer, we can also make a horizontal bar plot with just a few adjustments:

# Bring some raw data.
frequencies = [6, -16, 75, 160, 244, 260, 145, 73, 16, 4, 1]

freq_series = pd.Series(frequencies)

y_labels = [108300.0, 110540.0, 112780.0, 115020.0, 117260.0, 119500.0, 
            121740.0, 123980.0, 126220.0, 128460.0, 130700.0]

# Plot the figure.
plt.figure(figsize=(12, 8))
ax = freq_series.plot(kind='barh')
ax.set_title('Amount Frequency')
ax.set_xlabel('Frequency')
ax.set_ylabel('Amount ($)')
ax.set_yticklabels(y_labels)
ax.set_xlim(-40, 300) # expand xlim to make labels easier to read

rects = ax.patches

# For each bar: Place a label
for rect in rects:
    # Get X and Y placement of label from rect.
    x_value = rect.get_width()
    y_value = rect.get_y() + rect.get_height() / 2

    # Number of points between bar and label. Change to your liking.
    space = 5
    # Vertical alignment for positive values
    ha = 'left'

    # If value of bar is negative: Place label left of bar
    if x_value < 0:
        # Invert space to place label to the left
        space *= -1
        # Horizontally align label at right
        ha = 'right'

    # Use X value as label and format number with one decimal place
    label = "{:.1f}".format(x_value)

    # Create annotation
    plt.annotate(
        label,                      # Use `label` as label
        (x_value, y_value),         # Place label at end of the bar
        xytext=(space, 0),          # Horizontally shift label by `space`
        textcoords="offset points", # Interpret `xytext` as offset in points
        va='center',                # Vertically center label
        ha=ha)                      # Horizontally align label differently for
                                    # positive and negative values.

plt.savefig("image.png")

I found a couple of ways to do this with web based APIs. I think the US Postal Service would be the most accurate, since Zip codes are their thing, but Ziptastic looks much easier.

Using the US Postal Service HTTP/XML API

According to this page on the US Postal Service website which documents their XML based web API, specifically Section 4.0 (page 22) of this PDF document, they have a URL where you can send an XML request containing a 5 digit Zip Code and they will respond with an XML document containing the corresponding City and State.

According to their documentation, here's what you would send:

http://SERVERNAME/ShippingAPITest.dll?API=CityStateLookup&XML=<CityStateLookupRequest%20USERID="xxxxxxx"><ZipCode ID= "0"><Zip5>90210</Zip5></ZipCode></CityStateLookupRequest>

And here's what you would receive back:

<?xml version="1.0"?> 
<CityStateLookupResponse> 
    <ZipCode ID="0"> 
        <Zip5>90210</Zip5> 
        <City>BEVERLY HILLS</City> 
        <State>CA</State> 
    </ZipCode> 
</CityStateLookupResponse>

USPS does require that you register with them before you can use the API, but, as far as I could tell, there is no charge for access. By the way, their API has some other features: you can do Address Standardization and Zip Code Lookup, as well as the whole suite of tracking, shipping, labels, etc.

Using the Ziptastic HTTP/JSON API (no longer supported)

Update: As of August 13, 2017, Ziptastic is now a paid API and can be found here

This is a pretty new service, but according to their documentation, it looks like all you need to do is send a GET request to http://ziptasticapi.com, like so:

GET http://ziptasticapi.com/48867

And they will return a JSON object along the lines of:

{"country": "US", "state": "MI", "city": "OWOSSO"}

Indeed, it works. You can test this from a command line by doing something like:

curl http://ziptasticapi.com/48867 

This would be in addition to previous, if someone meets a problem with scandic letters that isn't solved with the solution above.

If the java source files contain scandic letters they need to be interpreted correctly by the Java used for compiling. (e.g. scandic letters used in constants)

Even that the files are stored in UTF-8 and the Maven is configured to use UTF-8, the System Java used by the Maven will still use the system default (eg. in Windows: cp1252).

This will be visible only running the tests via maven (possibly printing the values of these constants in tests. The printed scandic letters would show as '< ?>') If not tested properly, this would corrupt the class files as compile result and be left unnoticed.

To prevent this, you have to set the Java used for compiling to use UTF-8 encoding. It is not enough to have the encoding settings in the maven pom.xml, you need to set the environment variable: JAVA_TOOL_OPTIONS = -Dfile.encoding=UTF8

Also, if using Eclipse in Windows, you may need to set the encoding used in addition to this (if you run individual test via eclipse).

You could remove the folder and update the parent directory before committing:

rm -r some_dir

svn update some_dir_parent

You should use the ClearContents method if you want to clear the content but preserve the formatting.

Worksheets("Sheet1").Range("A1:G37").ClearContents

The problem is the OS can’t find Pip. Pip helps you install packages MODIFIED SOME GREAT ANSWERS TO BE BETTER

Method 1 Go to path of python, then search for pip

1. open cmd.exe
2. write the following command:

E.g

cd C:\Users\Username\AppData\Local\Programs\Python\Python37-32

In this directory, search pip with python -m pip then install package

E.g

python -m pip install ipywidgets

-m module-name Searches sys.path for the named module and runs the corresponding .py file as a script.

OR

GO TO scripts from CMD. This is where Pip stays :)

cd C:\Users\User name\AppData\Local\Programs\Python\Python37-32\Scripts>

Then

pip install anypackage

It depends on how you want to view the array. If you are viewing the array as a series of chars, then the only way to clear out the data is to touch every entry. memset is probably the most effective way to achieve this.

On the other hand, if you are choosing to view this as a C/C++ null terminated string, setting the first byte to 0 will effectively clear the string.

You need to validate at Person level, not on Senior level, or Senior must have a reference to its parent Person. It seems to me that you need a self validation mechanism that defines the validation on the Person and not on one of its properties. I'm not sure, but I don't think DataAnnotations supports this out of the box. What you can do create your own Attribute that derives from ValidationAttribute that can be decorated on class level and next create a custom validator that also allows those class-level validators to run.

I know Validation Application Block supports self-validation out-of the box, but VAB has a pretty steep learning curve. Nevertheless, here's an example using VAB:

[HasSelfValidation]
public class Person
{
    public string Name { get; set; }
    public bool IsSenior { get; set; }
    public Senior Senior { get; set; }

    [SelfValidation]
    public void ValidateRange(ValidationResults results)
    {
        if (this.IsSenior && this.Senior != null && 
            string.IsNullOrEmpty(this.Senior.Description))
        {
            results.AddResult(new ValidationResult(
                "A senior description is required", 
                this, "", "", null));
        }
    }
}

No 3rd party lib, WebBrowser class solution that can run on Console, and Asp.net

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Threading;

class ParseHTML
{
    public ParseHTML() { }
    private string ReturnString;

    public string doParsing(string html)
    {
        Thread t = new Thread(TParseMain);
        t.ApartmentState = ApartmentState.STA;
        t.Start((object)html);
        t.Join();
        return ReturnString;
    }

    private void TParseMain(object html)
    {
        WebBrowser wbc = new WebBrowser();
        wbc.DocumentText = "feces of a dummy";        //;magic words        
        HtmlDocument doc = wbc.Document.OpenNew(true);
        doc.Write((string)html);
        this.ReturnString = doc.Body.InnerHtml + " do here something";
        return;
    }
}

usage:

string myhtml = "<HTML><BODY>This is a new HTML document.</BODY></HTML>";
Console.WriteLine("before:" + myhtml);
myhtml = (new ParseHTML()).doParsing(myhtml);
Console.WriteLine("after:" + myhtml);

You need to tell the Range.RemoveDuplicates method what column to use. Additionally, since you have expressed that you have a header row, you should tell the .RemoveDuplicates method that.

Sub dedupe_abcd()
    Dim icol As Long

    With Sheets("Sheet1")   '<-set this worksheet reference properly!
        icol = Application.Match("abcd", .Rows(1), 0)
        With .Cells(1, 1).CurrentRegion
            .RemoveDuplicates Columns:=icol, Header:=xlYes
        End With
    End With
End Sub

Your original code seemed to want to remove duplicates from a single column while ignoring surrounding data. That scenario is atypical and I've included the surrounding data so that the .RemoveDuplicates process does not scramble your data. Post back a comment if you truly wanted to isolate the RemoveDuplicates process to a single column.

Instead of .each, another (perhaps more concise) approach to getting all those prices might be:

var prices = $(products).children("li").map(function() {
    return $(this).prop("data-price");
}).get();

additionally you may want to consider filtering the array to get rid of empty or non-numeric array values in case they should exist:

prices = prices.filter(function(n){ return(!isNaN(parseFloat(n))) });

then use Sergey's solution above:

var max = Math.max.apply(Math,prices);
var min = Math.min.apply(Math,prices);

You have a pointer to a char. So as your system knows, on that memory address there is a char value on sizeof(char) space. When you cast it up to int*, you will work with data of sizeof(int), so you will print your char and some memory-garbage after it as an integer.

Perhaps a more pythonic way of doing so.

from numpy import *
import math
import matplotlib.pyplot as plt

t = linspace(0,2*math.pi,400)
a = sin(t)
b = cos(t)
c = a + b

plt.plot(t, a, t, b, t, c)
plt.show()

If you want to add a click listener in chrome console, use this

document.querySelectorAll("label")[6].parentElement.onclick = () => {console.log('label clicked');}

jsCH has worked great for me. Below is an example of a method that will connect to sftp server and download files to specified directory. It is recommended to stay away from disabling StrictHostKeyChecking. Although a little bit more difficult to set up, for security reasons specifying the known hosts should be the norm.

jsch.setKnownHosts("C:\Users\test\known_hosts"); recommended

JSch.setConfig("StrictHostKeyChecking", "no"); - not recommended

import com.jcraft.jsch.*;
 public void downloadFtp(String userName, String password, String host, int port, String path) {


        Session session = null;
        Channel channel = null;
        try {
            JSch ssh = new JSch();
            JSch.setConfig("StrictHostKeyChecking", "no");
            session = ssh.getSession(userName, host, port);
            session.setPassword(password);
            session.connect();
            channel = session.openChannel("sftp");
            channel.connect();
            ChannelSftp sftp = (ChannelSftp) channel;
            sftp.get(path, "specify path to where you want the files to be output");
        } catch (JSchException e) {
            System.out.println(userName);
            e.printStackTrace();


        } catch (SftpException e) {
            System.out.println(userName);
            e.printStackTrace();
        } finally {
            if (channel != null) {
                channel.disconnect();
            }
            if (session != null) {
                session.disconnect();
            }
        }

    }

This might be more desirable, that is use float instead

SELECT fullName, CAST(totalBal as float) totalBal FROM client_info ORDER BY totalBal DESC

There are many ways. Here are at least five:

/*
 * An example of converting std::string to (const)char* using five
 * different methods. Error checking is emitted for simplicity.
 *
 * Compile and run example (using gcc on Unix-like systems):
 *
 *  $ g++ -Wall -pedantic -o test ./test.cpp
 *  $ ./test
 *  Original string (0x7fe3294039f8): hello
 *  s1 (0x7fe3294039f8): hello
 *  s2 (0x7fff5dce3a10): hello
 *  s3 (0x7fe3294000e0): hello
 *  s4 (0x7fe329403a00): hello
 *  s5 (0x7fe329403a10): hello
 */

#include <alloca.h>
#include <string>
#include <cstring>

int main()
{
    std::string s0;
    const char *s1;
    char *s2;
    char *s3;
    char *s4;
    char *s5;

    // This is the initial C++ string.
    s0 = "hello";

    // Method #1: Just use "c_str()" method to obtain a pointer to a
    // null-terminated C string stored in std::string object.
    // Be careful though because when `s0` goes out of scope, s1 points
    // to a non-valid memory.
    s1 = s0.c_str();

    // Method #2: Allocate memory on stack and copy the contents of the
    // original string. Keep in mind that once a current function returns,
    // the memory is invalidated.
    s2 = (char *)alloca(s0.size() + 1);
    memcpy(s2, s0.c_str(), s0.size() + 1);

    // Method #3: Allocate memory dynamically and copy the content of the
    // original string. The memory will be valid until you explicitly
    // release it using "free". Forgetting to release it results in memory
    // leak.
    s3 = (char *)malloc(s0.size() + 1);
    memcpy(s3, s0.c_str(), s0.size() + 1);

    // Method #4: Same as method #3, but using C++ new/delete operators.
    s4 = new char[s0.size() + 1];
    memcpy(s4, s0.c_str(), s0.size() + 1);

    // Method #5: Same as 3 but a bit less efficient..
    s5 = strdup(s0.c_str());

    // Print those strings.
    printf("Original string (%p): %s\n", s0.c_str(), s0.c_str());
    printf("s1 (%p): %s\n", s1, s1);
    printf("s2 (%p): %s\n", s2, s2);
    printf("s3 (%p): %s\n", s3, s3);
    printf("s4 (%p): %s\n", s4, s4);
    printf("s5 (%p): %s\n", s5, s5);

    // Release memory...
    free(s3);
    delete [] s4;
    free(s5);
}

Since Oracle 9i there are two ways or declaring a directory for use with UTL_FILE.

The older way is to set the INIT.ORA parameter UTL_FILE_DIR. We have to restart the database for a change to take affect. The value can like any other PATH variable; it accepts wildcards. Using this approach means passing the directory path...

UTL_FILE.FOPEN('c:\temp', 'vineet.txt', 'W');

The alternative approach is to declare a directory object.

create or replace directory temp_dir as 'C:\temp'
/

grant read, write on directory temp_dir to vineet
/

Directory objects require the exact file path, and don't accept wildcards. In this approach we pass the directory object name...

UTL_FILE.FOPEN('TEMP_DIR', 'vineet.txt', 'W');

The UTL_FILE_DIR is deprecated because it is inherently insecure - all users have access to all the OS directories specified in the path, whereas read and write privileges can de granted discretely to individual users. Also, with Directory objects we can be add, remove or change directories without bouncing the database.

In either case, the oracle OS user must have read and/or write privileges on the OS directory. In case it isn't obvious, this means the directory must be visible from the database server. So we cannot use either approach to expose a directory on our local PC to a process running on a remote database server. Files must be uploaded to the database server, or a shared network drive.

If the oracle OS user does not have the appropriate privileges on the OS directory, or if the path specified in the database does not match to an actual path, the program will hurl this exception:

ORA-29283: invalid file operation
ORA-06512: at "SYS.UTL_FILE", line 536
ORA-29283: invalid file operation
ORA-06512: at line 7

The OERR text for this error is pretty clear:

29283 -  "invalid file operation"
*Cause:    An attempt was made to read from a file or directory that does
           not exist, or file or directory access was denied by the
           operating system.
*Action:   Verify file and directory access privileges on the file system,
           and if reading, verify that the file exists.

You're already prepending the hash sign in your showDialog() function, and you're missing single quotes in your second code snippet. You should also return false from the handler to prevent a postback from occurring. Try:

<asp:Button ID="ButtonAdd" runat="server" Text="Add"
    OnClientClick="showDialog('<%=addPerson.ClientID %>'); return false;" />

I got here late, but returning to the original question, why not just use lookarounds?

Pattern p = Pattern.compile("(?<=\\w)(?=\\W)|(?<=\\W)(?=\\w)");
System.out.println(Arrays.toString(p.split("'ab','cd','eg'")));
System.out.println(Arrays.toString(p.split("boo:and:foo")));

output:

[', ab, ',', cd, ',', eg, ']
[boo, :, and, :, foo]

EDIT: What you see above is what appears on the command line when I run that code, but I now see that it's a bit confusing. It's difficult to keep track of which commas are part of the result and which were added by Arrays.toString(). SO's syntax highlighting isn't helping either. In hopes of getting the highlighting to work with me instead of against me, here's how those arrays would look it I were declaring them in source code:

{ "'", "ab", "','", "cd", "','", "eg", "'" }
{ "boo", ":", "and", ":", "foo" }

I hope that's easier to read. Thanks for the heads-up, @finnw.

You can also try another library - https://github.com/wikimedia/jquery.i18n .

In addition to parameter replacement and multiple plural forms, it has support for gender a rather unique feature of custom grammar rules that some languages need.

Neither of them worked for me for some reason.

I figured it out that for some reason python doesn't read %s. So use (?) instead of %S in you SQL Code.

And finally this worked for me.

   cursor.execute ("update tablename set columnName = (?) where ID = (?) ",("test4","4"))
   connect.commit()

Adapting @MOnsDaR answer for modern CMake syntax with imported targets, this would be:

find_package(Boost 1.40 COMPONENTS program_options REQUIRED)

add_executable(anyExecutable myMain.cpp)

target_link_libraries(anyExecutable Boost::program_options)

Note that it is not necessary to specify the include directories manually, since it is already taken care of through the imported target Boost::program_options.

A Spring Boot with Thymeleaf solution could look like:

Lets say my context-path is /app/

In Thymeleaf you can get it via:

<script th:inline="javascript">
    /*<![CDATA[*/
        let contextPath    = /*[[@{/}]]*/
    /*]]>*/
</script>

Bootstrap 4

Create a responsive navbar sidebar "drawer" in Bootstrap 4?
Bootstrap horizontal menu collapse to sidemenu

Bootstrap 3

I think what you're looking for is generally known as an "off-canvas" layout. Here is the standard off-canvas example from the official Bootstrap docs: http://getbootstrap.com/examples/offcanvas/

The "official" example uses a right-side sidebar the toggle off and on separately from the top navbar menu. I also found these off-canvas variations that slide in from the left and may be closer to what you're looking for..

http://www.bootstrapzero.com/bootstrap-template/off-canvas-sidebar http://www.bootstrapzero.com/bootstrap-template/facebook

• Single comment e.g.: //comment
• Multi Line comment e.g: /* comment */
• javadoc comment e.g: /** comment */

Use Date convert to compare with date: Try This:

select * from table 
where TO_DATE(to_char(timespanColumn,'YYYY-MM-DD'),'YYYY-MM-DD') = to_timestamp('2018-03-26', 'YYYY-MM-DD')

echo -e "/thing_to_delete\ndd\033:x\n" | vim file_to_edit.txt

Eclipse artifact searching depends on repository's index file. It seems you did not download the index file.

Go to Window -> Prefrences -> Maven and check "Download repository index updates on start". Restart Eclipse and then look at the progress view. An index file should be downloading.

After downloading completely, artifact searching will be ready to use.

UPDATE You also need to rebuild your Maven repository index in 'maven repository view'.

In this view , open 'Global Repositories', right-click 'central', check 'Full Index Enable', and then, click 'Rebuild Index' in the same menu.

A 66M index file will be downloaded.

Also consider using Array(). From the Ruby Community Style Guide:

Use Array() instead of explicit Array check or [*var], when dealing with a variable you want to treat as an Array, but you're not certain it's an array.

# bad
paths = [paths] unless paths.is_a? Array
paths.each { |path| do_something(path) }

# bad (always creates a new Array instance)
[*paths].each { |path| do_something(path) }

# good (and a bit more readable)
Array(paths).each { |path| do_something(path) }

This thread is a bit old, but I still want to add a little demonstration since it is still not an intuitive problem:

me$ git status
# On branch master
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#   new file:   to-be-added
#   modified:   to-be-modified
#   deleted:    to-be-removed
#

me$ git reset -q HEAD to-be-added

    # ok

me$ git reset -q HEAD to-be-modified

    # ok

me$ git reset -q HEAD to-be-removed

    # ok

# or alternatively:

me$ git reset -q HEAD to-be-added to-be-removed to-be-modified

    # ok

me$ git status
# On branch master
# Changes not staged for commit:
#   (use "git add/rm <file>..." to update what will be committed)
#   (use "git checkout -- <file>..." to discard changes in working directory)
#
#   modified:   to-be-modified
#   deleted:    to-be-removed
#
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
#   to-be-added
no changes added to commit (use "git add" and/or "git commit -a")

git reset HEAD (without -q) gives a warning about the modified file and its exit code is 1 which will be considered as an error in a script.

Edit: git checkout HEAD to-be-modified to-be-removed also works for unstaging, but removes the change completely from the workspace

Update git 2.23.0: From time to time, the commands change. Now, git status says:

  (use "git restore --staged <file>..." to unstage)

... which works for all three types of change

You also can use some HTML5 attributes, some browsers might already take advantage of them (type="number" min="0").

Whatever you do, remember to re-check your inputs on the server side: you can never assume the client-side validation has been performed.

Here is an example from my HOW TO Matlab page:

close all; clear all;

img   = imread('lena.tif','tif');
imagesc(img)
img   = fftshift(img(:,:,2));
F     = fft2(img);

figure;

imagesc(100*log(1+abs(fftshift(F)))); colormap(gray); 
title('magnitude spectrum');

figure;
imagesc(angle(F));  colormap(gray);
title('phase spectrum');

This gives the magnitude spectrum and phase spectrum of the image. I used a color image, but you can easily adjust it to use gray image as well.

ps. I just noticed that on Matlab 2012a the above image is no longer included. So, just replace the first line above with say

img = imread('ngc6543a.jpg');

and it will work. I used an older version of Matlab to make the above example and just copied it here.

On the scaling factor

When we plot the 2D Fourier transform magnitude, we need to scale the pixel values using log transform to expand the range of the dark pixels into the bright region so we can better see the transform. We use a c value in the equation

s = c log(1+r) 

There is no known way to pre detrmine this scale that I know. Just need to try different values to get on you like. I used 100 in the above example.

TypeScript does something similar to what less or sass does for CSS. They are super sets of it, which means that every JS code you write is valid TypeScript code. Plus you can use the other goodies that it adds to the language, and the transpiled code will be valid js. You can even set the JS version that you want your resulting code on.

Currently TypeScript is a super set of ES2015, so might be a good choice to start learning the new js features and transpile to the needed standard for your project.

On almost every system I've met uint8_t == unsigned char, but this is not guaranteed by the C standard. If you are trying to write portable code and it matters exactly what size the memory is, use uint8_t. Otherwise use unsigned char.

UPDATE:

New link for the icons image size by apple.

https://developer.apple.com/ios/human-interface-guidelines/graphics/image-size-and-resolution/

Yes it's True here it is Apple provide Official documentation regarding icon's or image size

you have to set images for iPhone6 and iPhone6+

For iPhone 6:

750 x 1334 (@2x) for portrait

1334 x 750 (@2x) for landscape

For iPhone 6 Plus:

1242 x 2208 (@3x) for portrait

2208 x 1242 (@3x) for landscape

For more info regarding Images and it's resolution this is best ever helpful post

For setting images size for controls you can set 1x @2x and @3x like following:

From Documentation you can say that

View.GONE This view is invisible, and it doesn't take any space for layout purposes.

View.INVISIBLE This view is invisible, but it still takes up space for layout purposes.

Lets clear the idea with some pictures.

Assume that you have three buttons, like below

Now if you set visibility of Button Two as invisible (View.INVISIBLE), then output will be

And when you set visibility of Button Two as gone (View.GONE) then output will be

Hope this will clear your doubts.

If you know (or if you can "guess") the path to the .apk (it seems to be of the format /data/app/com.example.someapp-{1,2,..}.apk to , then you can just copy it from /data/app as well. This worked even on my non-rooted, stock Android phone.

Just use a Terminal Emulator app (such as this one) and run:

# step 1: confirm path
ls /data/app/com.example.someapp-1.apk
# if it doesn't show up, try -2, -3. Note that globbing (using *) doesn't work here.
# step 2: copy (make sure you adapt the path to match what you discovered above)
cp /data/app/com.example.someapp-1.apk /mnt/sdcard/

Then you can move it from the SD-card to wherever you want (or attach it to an email etc). The last bit might be technically optional, but it makes your life a lot easier when trying to do something with the .apk file.

searchfile = open("file.txt", "r")
for line in searchfile:
    if "searchphrase" in line: print line
searchfile.close()

To print out multiple lines (in a simple way)

f = open("file.txt", "r")
searchlines = f.readlines()
f.close()
for i, line in enumerate(searchlines):
    if "searchphrase" in line: 
        for l in searchlines[i:i+3]: print l,
        print

The comma in print l, prevents extra spaces from appearing in the output; the trailing print statement demarcates results from different lines.

Or better yet (stealing back from Mark Ransom):

with open("file.txt", "r") as f:
    searchlines = f.readlines()
for i, line in enumerate(searchlines):
    if "searchphrase" in line: 
        for l in searchlines[i:i+3]: print l,
        print

Here is one case that worked for me if we need to convert .cer to .crt, though both of them are contextually same

openssl pkcs12 -in identity.p12 -nokeys -out mycertificate.crt

where we should have a valid private key (identity.p12) PKCS 12 format, this one i generated from keystore (.jks file) provided by CA (Certification Authority) who created my certificate.

I did it right now with one of my grids.

• First apply the same margin to every element inside the grid. You can do this mannualy, using styles, or whatever you like. Lets say you want an horizontal spacing of 6px and a vertical spacing of 2px. Then you add margins of "3px 1px" to every child of the grid.
• Then remove the margins created around the grid (if you want to align the borders of the controls inside the grid to the same position of the grid). Do this setting a margin of "-3px -1px" to the grid. That way, other controls outside the grid will be aligned with the outtermost controls inside the grid.

pathinfo is cool but your code can be improved:

$filename = $_FILES['video_file']['name'];
$ext = pathinfo($filename, PATHINFO_EXTENSION);
$allowed = array('jpg','png','gif');
if( ! in_array( $ext, $allowed ) ) {echo 'error';}

Of course simply checking the extension of the filename would not guarantee the file type as a valid image. You may consider using a function like getimagesize to validate uploaded image files.

As many people mentioned it before, Java is always pass-by-value

Here is another example that will help you understand the difference (the classic swap example):

public class Test {
  public static void main(String[] args) {
    Integer a = new Integer(2);
    Integer b = new Integer(3);
    System.out.println("Before: a = " + a + ", b = " + b);
    swap(a,b);
    System.out.println("After: a = " + a + ", b = " + b);
  }

  public static swap(Integer iA, Integer iB) {
    Integer tmp = iA;
    iA = iB;
    iB = tmp;
  }
}

Prints:

Before: a = 2, b = 3
After: a = 2, b = 3

This happens because iA and iB are new local reference variables that have the same value of the passed references (they point to a and b respectively). So, trying to change the references of iA or iB will only change in the local scope and not outside of this method.

When the shape is not regular or the elements have different data types, the dtype argument passed to np.array only can be object.

import numpy as np

# arr1 = np.array([[10, 20.], [30], [40]], dtype=np.float32)  # error
arr2 = np.array([[10, 20.], [30], [40]])  # OK, and the dtype is object
arr3 = np.array([[10, 20.], 'hello'])     # OK, and the dtype is also object

``

Get yourself a 64-bit JVM from Oracle.

You don't say which shell you're using. If it's a POSIX-compatible one such as Bash, then parameter expansion can do what you want:

Parameter Expansion

...

${parameter#word}

Remove Smallest Prefix Pattern.
The word is expanded to produce a pattern. The parameter expansion then results in parameter, with the smallest portion of the prefix matched by the pattern deleted.

In other words, you can write

$var="${var#*:}"

which will remove anything matching *: from $var (i.e. everything up to and including the first :). If you want to match up to the last :, then you could use ## in place of #.

This is all assuming that the part to remove does not contain : (true for IPv4 addresses, but not for IPv6 addresses)

I think you're supposed to place clearApplicationData() before the super.OnDestroy().

Your app can't process any methods when it has been shut down.

Knockout.js validation is handy but it is not robust. You always have to create server side validation replica. In your case (as you use knockout.js) you are sending JSON data to server and back asynchronously, so you can make user think that he sees client side validation, but in fact it would be asynchronous server side validation.

Take a look at example here upida.cloudapp.net:8080/org.upida.example.knockout/order/create?clientId=1 This is a "Create Order" link. Try to click "save", and play with products. This example is done using upida library (there are spring mvc version and asp.net mvc of this library) from codeplex.

Two reasons, there may be more:

1. pip provides an uninstall command

2. if an installation fails in the middle, pip will leave you in a clean state.

Yes, what you are asking for is called AJAX or XMLHttpRequest. You can either use a library like jQuery to simplify making the call (due to cross-browser compatibility issues), or write your own handler.

In jQuery:

$.GET('url.asp', {data: 'here'}, function(data){ /* what to do with the data returned */ })

In plain vanilla javaScript (from w3c):

var xmlhttp;
function loadXMLDoc(url)
{
    xmlhttp=null;
if (window.XMLHttpRequest)
  {// code for all new browsers
      xmlhttp=new XMLHttpRequest();
  }
else if (window.ActiveXObject)
  {// code for IE5 and IE6
      xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
if (xmlhttp!=null)
  {
      xmlhttp.onreadystatechange=state_Change;
      xmlhttp.open("GET",url,true);
      xmlhttp.send(null);
  }
else
  {
      alert("Your browser does not support XMLHTTP.");
  }
}

function state_Change()
{
    if (xmlhttp.readyState==4)
      {// 4 = "loaded"
          if (xmlhttp.status==200)
            {// 200 = OK
             //xmlhttp.data and shtuff
            // ...our code here...
        }
  else
        {
            alert("Problem retrieving data");
        }
  }
}

// array of $ids that you need to select
$ids = array('1', '2', '3', '4', '5', '6', '7', '8');

// create sql part for IN condition by imploding comma after each id
$in = '(' . implode(',', $ids) .')';

// create sql
$sql = 'SELECT * FROM products WHERE catid IN ' . $in;

// see what you get
var_dump($sql);

Update: (a short version and update missing comma)

$ids = array('1','2','3','4');
$sql = 'SELECT * FROM products WHERE catid IN (' . implode(',', $ids) . ')';

I'm answering this question because there doesn't seem to be a simple and explicit solution to the problem of "cloning an array of objects in Javascript":

function deepCopy (arr) {
    var out = [];
    for (var i = 0, len = arr.length; i < len; i++) {
        var item = arr[i];
        var obj = {};
        for (var k in item) {
            obj[k] = item[k];
        }
        out.push(obj);
    }
    return out;
}

// test case

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

var copy = deepCopy(original);

// change value in copy
copy[0]['a'] = 'not 1';

// original[0]['a'] still equals 1

This solution iterates the array values, then iterates the object keys, saving the latter to a new object, and then pushing that new object to a new array.

See jsfiddle. Note: a simple .slice() or [].concat() isn't enough for the objects within the array.

Bootstrap 3:

Why fight it? Why not simply control your table width using the bootstrap grid?

<div class="row">
    <div class="col-sm-6">
        <table></table>
    </div>
</div>

This will create a table that is half (6 out of 12) of the width of the containing element.

I sometimes use inline styles as per the other answers, but it is discouraged.

Bootstrap 4:

Bootstrap 4 has some nice helper classes for width like w-25, w-50, w-75, w-100, and w-auto. This will make the table 50% width:

<table class="w-50"></table>

Here's the doc: https://getbootstrap.com/docs/4.0/utilities/sizing/

It will fail to work when:

1. You are redirecting the response to a new request by response.sendRedirect("page.jsp"). The newly created request object will of course not contain the attributes anymore and they will not be accessible in the redirected JSP. You need to forward rather than redirect. E.g.

   request.setAttribute("name", "value");
   request.getRequestDispatcher("page.jsp").forward(request, response);
   

2. You are accessing it the wrong way or using the wrong name. Assuming that you have set it using the name "name", then you should be able to access it in the forwarded JSP page as follows:

   ${name}
   

I found out about this one (Unzip package on NuGet) today, since I ran into a hard bug in DotNetZip, and I realized there hasn't been really that much work done on DotNetZip for the last two years.

The Unzip package is lean, and it did the job for me - it didn't have the bug that DotNetZip had. Also, it was a reasonably small file, relying upon the Microsoft BCL for the actual decompression. I could easily make adjustments which I needed (to be able to keep track of the progress while decompressing). I recommend it.

You can use entrypoint here. entrypoint in docker is executed before the command while command is the default command that should be run when container starts. So most of the applications generally carry setup procedure in entrypoint file and in the last they allow command to run.

make a shell script file may be as docker-entrypoint.sh (name does not matter) with following contents in it.

#!/bin/bash
python manage.py migrate
exec "$@"

in docker-compose.yml file use it with entrypoint: /docker-entrypoint.sh and register command as command: python manage.py runserver 0.0.0.0:8000 P.S : do not forget to copy docker-entrypoint.sh along with your code.