From the Vimeo Simple API docs:

Making a Video Request

To get data about a specific video, use the following url:

http://vimeo.com/api/v2/video/video_id.output

video_id The ID of the video you want information for.

output Specify the output type. We currently offer JSON, PHP, and XML formats.

So getting this URL http://vimeo.com/api/v2/video/6271487.xml

    <videos> 
      <video> 
        [skipped]
        <thumbnail_small>http://ts.vimeo.com.s3.amazonaws.com/235/662/23566238_100.jpg</thumbnail_small> 
        <thumbnail_medium>http://ts.vimeo.com.s3.amazonaws.com/235/662/23566238_200.jpg</thumbnail_medium> 
        <thumbnail_large>http://ts.vimeo.com.s3.amazonaws.com/235/662/23566238_640.jpg</thumbnail_large> 
        [skipped]
    </videos>

Parse this for every video to get the thumbnail

Here's approximate code in PHP

<?php

$imgid = 6271487;

$hash = unserialize(file_get_contents("http://vimeo.com/api/v2/video/$imgid.php"));

echo $hash[0]['thumbnail_medium'];  

Solution #1 (Older) (not recommended)

Firstly install ffmpeg-php project (http://ffmpeg-php.sourceforge.net/)

And then you can use of this simple code:

<?php
$frame = 10;
$movie = 'test.mp4';
$thumbnail = 'thumbnail.png';

$mov = new ffmpeg_movie($movie);
$frame = $mov->getFrame($frame);
if ($frame) {
    $gd_image = $frame->toGDImage();
    if ($gd_image) {
        imagepng($gd_image, $thumbnail);
        imagedestroy($gd_image);
        echo '<img src="'.$thumbnail.'">';
    }
}
?>

Description: This project use binary extension .so file, It's very old and last update was for 2008. So, maybe don't works with newer version of FFMpeg or PHP.

Solution #2 (Update 2018) (recommended)

Firstly install PHP-FFMpeg project (https://github.com/PHP-FFMpeg/PHP-FFMpeg)
(just run for install: composer require php-ffmpeg/php-ffmpeg)

And then you can use of this simple code:

<?php
require 'vendor/autoload.php';

$sec = 10;
$movie = 'test.mp4';
$thumbnail = 'thumbnail.png';

$ffmpeg = FFMpeg\FFMpeg::create();
$video = $ffmpeg->open($movie);
$frame = $video->frame(FFMpeg\Coordinate\TimeCode::fromSeconds($sec));
$frame->save($thumbnail);
echo '<img src="'.$thumbnail.'">';

Description: It's newer and more modern project and works with latest version of FFMpeg and PHP. Note that it's required to proc_open() PHP function.

Based in @tomvon, I finished using the following (pick your case):

a) Resizing height (I know the new width, so I need the new height)

new_width  = 680
new_height = new_width * height / width 

b) Resizing width (I know the new height, so I need the new width)

new_height = 680
new_width  = new_height * width / height

Then just:

img = img.resize((new_width, new_height), Image.ANTIALIAS)

1. Use the carousel's indicators to display thumbnails.
2. Position the thumbnails outside of the main carousel with CSS.
3. Set the maximum height of the indicators to not be larger than the thumbnails.
4. Whenever the carousel has slid, update the position of the indicators, positioning the active indicator in the middle of the indicators.

I'm using this on my site (for example here), but I'm using some extra stuff to do lazy loading, meaning extracting the code isn't as straightforward as I would like it to be for putting it in a fiddle.

Also, my templating engine is smarty, but I'm sure you get the idea.

The meat...

Updating the indicators:

<ol class="carousel-indicators">
    {assign var='walker' value=0}
    {foreach from=$item["imagearray"] key="key" item="value"}
        <li data-target="#myCarousel" data-slide-to="{$walker}"{if $walker == 0} class="active"{/if}>
            <img src='http://farm{$value["farm"]}.static.flickr.com/{$value["server"]}/{$value["id"]}_{$value["secret"]}_s.jpg'>
        </li>

        {assign var='walker' value=1 + $walker}
    {/foreach}
</ol>

Changing the CSS related to the indicators:

.carousel-indicators {
    bottom:-50px;
    height: 36px;
    overflow-x: hidden;
    white-space: nowrap;
}

.carousel-indicators li {
    text-indent: 0;
    width: 34px !important;
    height: 34px !important;
    border-radius: 0;
}

.carousel-indicators li img {
    width: 32px;
    height: 32px;
    opacity: 0.5;
}

.carousel-indicators li:hover img, .carousel-indicators li.active img {
    opacity: 1;
}

.carousel-indicators .active {
    border-color: #337ab7;
}

When the carousel has slid, update the list of thumbnails:

$('#myCarousel').on('slid.bs.carousel', function() {
    var widthEstimate = -1 * $(".carousel-indicators li:first").position().left + $(".carousel-indicators li:last").position().left + $(".carousel-indicators li:last").width(); 
    var newIndicatorPosition = $(".carousel-indicators li.active").position().left + $(".carousel-indicators li.active").width() / 2;
    var toScroll = newIndicatorPosition + indicatorPosition;
    var adjustedScroll = toScroll - ($(".carousel-indicators").width() / 2);
    if (adjustedScroll < 0)
        adjustedScroll = 0;

    if (adjustedScroll > widthEstimate - $(".carousel-indicators").width())
        adjustedScroll = widthEstimate - $(".carousel-indicators").width();

    $('.carousel-indicators').animate({ scrollLeft: adjustedScroll }, 800);

    indicatorPosition = adjustedScroll;
});

And, when your page loads, set the initial scroll position of the thumbnails:

var indicatorPosition = 0;

Here is an example to convert high res image into thumbnail size-

protected void Button1_Click(object sender, EventArgs e)
{
    //----------        Getting the Image File
    System.Drawing.Image img = System.Drawing.Image.FromFile(Server.MapPath("~/profile/Avatar.jpg"));

    //----------        Getting Size of Original Image
    double imgHeight = img.Size.Height;
    double imgWidth = img.Size.Width;

    //----------        Getting Decreased Size
    double x = imgWidth / 200;
    int newWidth = Convert.ToInt32(imgWidth / x);
    int newHeight = Convert.ToInt32(imgHeight / x);

    //----------        Creating Small Image
    System.Drawing.Image.GetThumbnailImageAbort myCallback = new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);
    System.Drawing.Image myThumbnail = img.GetThumbnailImage(newWidth, newHeight, myCallback, IntPtr.Zero);

    //----------        Saving Image
    myThumbnail.Save(Server.MapPath("~/profile/NewImage.jpg"));
}
public bool ThumbnailCallback()
{
    return false;
}

Source- http://iknowledgeboy.blogspot.in/2014/03/c-creating-thumbnail-of-large-image-by.html

function getExtension($str) 
    {

          $i = strrpos($str,".");
         if (!$i) { return ""; } 

         $l = strlen($str) - $i;
         $ext = substr($str,$i+1,$l);
         return $ext;
    }

$valid_formats = array("jpg", "png", "gif", "bmp","jpeg","PNG","JPG","JPEG","GIF","BMP");
if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST")
    {
        $name = $_FILES['photoimg']['name'];
        $size = $_FILES['photoimg']['size'];

        if(strlen($name))
            {
                 $ext = getExtension($name);
                if(in_array($ext,$valid_formats))
                {
                if($size<(1024*1024))
                    {
                        $actual_image_name = time().substr(str_replace(" ", "_", $txt), 5).".".$ext;
                        $tmp = $_FILES['photoimg']['tmp_name'];
                        if(move_uploaded_file($tmp, $path.$actual_image_name))
                            {


                            mysql_query("INSERT INTO users (uid, profile_image) VALUES ('$session_id' , '$actual_image_name')");

                                echo "<img src='uploads/".$actual_image_name."'  class='preview'>";
                            }
                        else
                            echo "Fail upload folder with read access.";
                    }
                    else
                    echo "Image file size max 1 MB";                    
                    }
                    else
                    echo "Invalid file format..";   
            }

        else
            echo "Please select image..!";

        exit;
    }

Use this code this may help you.i have passed the cat id 17.pass woocommerce cat id and thats it

   <?php
      global $woocommerce;
      global $wp_query;
      $cat_id=17;
      $table_name = $wpdb->prefix . "woocommerce_termmeta";
      $query="SELECT meta_value FROM {$table_name} WHERE `meta_key`='thumbnail_id' and woocommerce_term_id ={$cat_id} LIMIT 0 , 30";
      $result =  $wpdb->get_results($query);

      foreach($result as $result1){
          $img_id= $result1->meta_value;
      }     

      echo '<img src="'.wp_get_attachment_url( $img_id ).'" alt="category image">';
   ?>

I've noticed that Facebook does not take thumbnails from websites if they start with https, is that maybe your case?

By default, a MariaDB installation has an anonymous user, allowing anyone to log into MariaDB without having to have a user account created for them. This is intended only for testing, and to make the installation go a bit smoother. You should remove them before moving into a production environment.

I know I'm late :) But this how i do it:

public static void AddOrUpdateAppSettings(string key, string value)
{
    try
    {
        var configFile = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
        var settings = configFile.AppSettings.Settings;
        if (settings[key] == null)
        {
            settings.Add(key, value);
        }
        else
        {
            settings[key].Value = value;
        }
        configFile.Save(ConfigurationSaveMode.Modified);
        ConfigurationManager.RefreshSection(configFile.AppSettings.SectionInformation.Name);
    }
    catch (ConfigurationErrorsException)
    {
        Console.WriteLine("Error writing app settings");
    }
}

For more information look at MSDN

Yup, and sun.misc.BASE64Decoder is way slower: 9x slower than java.xml.bind.DatatypeConverter.parseBase64Binary() and 4x slower than org.apache.commons.codec.binary.Base64.decodeBase64(), at least for a small string on Java 6 OSX.

Below is the test program I used. With Java 1.6.0_43 on OSX:

john:password = am9objpwYXNzd29yZA==
javax.xml took 373: john:password
apache took    612: john:password
sun took       2215: john:password

Btw that's with commons-codec 1.4. With 1.7 it seems to get slower:

javax.xml took 377: john:password
apache took    1681: john:password
sun took       2197: john:password

Didn't test Java 7 or other OS.

import javax.xml.bind.DatatypeConverter;
import org.apache.commons.codec.binary.Base64;
import java.io.IOException;

public class TestBase64 {
    private static volatile String save = null;
    public static void main(String argv[]) {
        String teststr = "john:password";
        String b64 = DatatypeConverter.printBase64Binary(teststr.getBytes());
        System.out.println(teststr + " = " + b64);
        try {
            final int COUNT = 1000000;
            long start;
            start = System.currentTimeMillis();
            for (int i=0; i<COUNT; ++i) {
                save = new String(DatatypeConverter.parseBase64Binary(b64));
            }
            System.out.println("javax.xml took "+(System.currentTimeMillis()-start)+": "+save);
            start = System.currentTimeMillis();
            for (int i=0; i<COUNT; ++i) {
                save = new String(Base64.decodeBase64(b64));
            }
            System.out.println("apache took    "+(System.currentTimeMillis()-start)+": "+save);
            sun.misc.BASE64Decoder dec = new sun.misc.BASE64Decoder();
            start = System.currentTimeMillis();
            for (int i=0; i<COUNT; ++i) {
                save = new String(dec.decodeBuffer(b64));
            }
            System.out.println("sun took       "+(System.currentTimeMillis()-start)+": "+save);
        } catch (Exception e) {
            System.out.println(e);
        }
    }
}

This isn't possible with ruby currently. You can't pass 'empty' attributes to methods. The closest you can get is to pass nil:

ldap_get(base_dn, filter, nil, X)

However, this will set the scope to nil, not LDAP::LDAP_SCOPE_SUBTREE.

What you can do is set the default value within your method:

def ldap_get(base_dn, filter, scope = nil, attrs = nil)
  scope ||= LDAP::LDAP_SCOPE_SUBTREE
  ... do something ...
end

Now if you call the method as above, the behaviour will be as you expect.

ex.split(',', 2).last

The 2 at the end says: split into 2 pieces, not more.

normally split will cut the value into as many pieces as it can, using a second value you can limit how many pieces you will get. Using ex.split(',', 2) will give you:

["test1", "test2, test3, test4, test5"]

as an array, instead of:

["test1", "test2", "test3", "test4", "test5"]

I've modified an open-source program called "dskwipe" in order to pull this disk information out of it. Dskwipe is written in C, and you can pull this function out of it. The binary and source are available here: dskwipe 0.3 has been released

The returned information will look something like this:

Device Name                         Size Type      Partition Type
------------------------------ --------- --------- --------------------
\\.\PhysicalDrive0               40.0 GB Fixed
\\.\PhysicalDrive1               80.0 GB Fixed
\Device\Harddisk0\Partition0     40.0 GB Fixed
\Device\Harddisk0\Partition1     40.0 GB Fixed     NTFS
\Device\Harddisk1\Partition0     80.0 GB Fixed
\Device\Harddisk1\Partition1     80.0 GB Fixed     NTFS
\\.\C:                           80.0 GB Fixed     NTFS
\\.\D:                            2.1 GB Fixed     FAT32
\\.\E:                           40.0 GB Fixed     NTFS

Follow the instructions in this Answer to format the EditText mask.

https://stackoverflow.com/a/34907607/1013929

And after that, you can catch the original numbers from the masked string with:

String phoneNumbers = maskedString.replaceAll("[^\\d]", "");

It seems like the $in operator would serve your purposes just fine.

You could do something like this (pseudo-query):

if (db.courses.find({"students" : {"$in" : [studentId]}, "course" : courseId }).count() > 0) {
  // student is enrolled in class
}

Alternatively, you could remove the "course" : courseId clause and get back a set of all classes the student is enrolled in.

Use the keyword next. If you do not want to continue to the next item, use break.

When next is used within a block, it causes the block to exit immediately, returning control to the iterator method, which may then begin a new iteration by invoking the block again:

f.each do |line|              # Iterate over the lines in file f
  next if line[0,1] == "#"    # If this line is a comment, go to the next
  puts eval(line)
end

When used in a block, break transfers control out of the block, out of the iterator that invoked the block, and to the first expression following the invocation of the iterator:

f.each do |line|             # Iterate over the lines in file f
  break if line == "quit\n"  # If this break statement is executed...
  puts eval(line)
end
puts "Good bye"              # ...then control is transferred here

And finally, the usage of return in a block:

return always causes the enclosing method to return, regardless of how deeply nested within blocks it is (except in the case of lambdas):

def find(array, target)
  array.each_with_index do |element,index|
    return index if (element == target)  # return from find
  end
  nil  # If we didn't find the element, return nil
end

for a 2-D tensor, you can get the number of rows and columns as int32 using the following code:

rows, columns = map(lambda i: i.value, tensor.get_shape())

Option 1: Put this in your procedure to print 'comment' to stdout when it runs.

SELECT 'Comment';

Option 2: Put this in your procedure to print a variable with it to stdout:

declare myvar INT default 0;
SET myvar = 5;
SELECT concat('myvar is ', myvar);

This prints myvar is 5 to stdout when the procedure runs.

Option 3, Create a table with one text column called tmptable, and push messages to it:

declare myvar INT default 0;
SET myvar = 5;
insert into tmptable select concat('myvar is ', myvar);

You could put the above in a stored procedure, so all you would have to write is this:

CALL log(concat('the value is', myvar));

Which saves a few keystrokes.

Option 4, Log messages to file

select "penguin" as log into outfile '/tmp/result.txt';

There is very heavy restrictions on this command. You can only write the outfile to areas on disk that give the 'others' group create and write permissions. It should work saving it out to /tmp directory.

Also once you write the outfile, you can't overwrite it. This is to prevent crackers from rooting your box just because they have SQL injected your website and can run arbitrary commands in MySQL.

There's a book in Martin Fowler's Signature Series called Refactoring Databases. That provides a list of techniques for refactoring databases. I can't say I've heard a list of database patterns so much.

I would also highly recommend David C. Hay's Data Model Patterns and the follow up A Metadata Map which builds on the first and is far more ambitious and intriguing. The Preface alone is enlightening.

Also a great place to look for some pre-canned database models is Len Silverston's Data Model Resource Book Series Volume 1 contains universally applicable data models (employees, accounts, shipping, purchases, etc), Volume 2 contains industry specific data models (accounting, healthcare, etc), Volume 3 provides data model patterns.

Finally, while this book is ostensibly about UML and Object Modelling, Peter Coad's Modeling in Color With UML provides an "archetype" driven process of entity modeling starting from the premise that there are 4 core archetypes of any object/data model

For tomcat you can increase the permGem space by using

 -XX:MaxPermSize=128m

For this you need to create (if not already exists) a file named setenv.sh in tomcat/bin folder and include following line in it

   export JAVA_OPTS="-XX:MaxPermSize=128m"

Reference : http://wiki.razuna.com/display/ecp/Adjusting+Memory+Settings+for+Tomcat

This is not exactly what author asked, but still, it is very simple and works exactly as expected.

Rectangle does the job:

<StackPanel Grid.Column="2" Orientation="Horizontal">
    <Button >Next</Button>
    <Button >Prev</Button>
    <Rectangle VerticalAlignment="Stretch" Width="1" Margin="2" Stroke="Black" />
    <Button>Filter all</Button>
</StackPanel>

Ok, I finally resolved this, by completely de-installing Android-Studio, and then installing the latest (0.2.0) from scratch.

EDIT: I also had to use the Android SDK-Manager, and install the component in the 'Extras' section called the Android Support Repository (as mentioned elsewhere).

Note: This does NOT fix my old existing project...that one still will not build, as indicated above.

But, it DOES solve the issue of now being able to at least create NEW projects going forward, that build ok using 'Gradle'. (So, basically, I re-created my proj from scratch under a new name, and copied all my code and project xml-files, etc, from the old project, into the newly-created one.)

[As an aside: I've got an idea, Google! Why don't you refer to versions of Android-Studio using numbers like 0.1.9 and 0.2.0, but then when users click on 'About' menu item, or search elsewhere for what version they are running, you could baffle them with crap like 'the July 11th build' or aka, some build number with 6 or 8 digits of numbering, and make them wonder what version they actually have! That will keep the developers guessing...really will sort the wheat from the chaff, etc.]

For example, I originally installed a kit named: android-studio-bundle-130.687321-windows.exe

Today, I got the "0.2.0" kit???, and it has a name like: android-studio-bundle-130.737825-windows.exe

Yep, this version #ing system is about as clear as mud.
Why bother with the illusion of version#s, when you don't use them!!!???

Pls find below where I have explained with data in the array after case 1 & case 2.

char sc_ArrData[ 100 ];
strcpy(sc_ArrData,"Hai" );

Case 1:

sc_ArrData[0] = '\0';

Result:

-   "sc_ArrData"
[0] 0 ''
[1] 97 'a'
[2] 105 'i'
[3] 0 ''

Case 2:

memset(&sc_ArrData[0], 0, sizeof(sc_ArrData));

Result:

-   "sc_ArrData"
[0] 0 ''
[1] 0 ''
[2] 0 ''
[3] 0 ''

Though setting first argument to NULL will do the trick, using memset is advisable

The answers so far have covered the details, but if you don't intend to drop down to assembly, then all you have to know is that both the caller and the callee must use the same calling convention, otherwise you'll get bugs that are hard to find.

First you need to make sure that the project has been built. You can build a project with the hammer icon in the toolbar. You can choose to build either a Debug or Release version. If you cannot build the project then the problem is that you either don't have a compiler installed or that the IDE does not find the compiler.

To see if you have a compiler installed in a Mac you can run the following command from the command line:

g++ --version

If you have it already installed (it gets installed when you install the XCode tools) you can see its location running:

which g++

If you were able to build the project but you still get the "binary not found" message then the issue might be that a default launch configuration is not being created for the project. In that case do this:

Right click project > Run As > Run Configurations... > 

Then create a new configuration under the "C/C++ Application" section > Enter the full path to the executable file (the file that was created in the build step and that will exist in either the Debug or Release folder). Your launch configuration should look like this:

just adding to above answers, when we have a static code (ie code block is instance independent) that needs to be present in memory, we can have the class returned so we'll use Class.forname("someName") else if we dont have static code we can go for Class.forname().newInstance("someName") as it will load object level code blocks(non static) to memory

I like Stefan’s answer (Sep 11 ’13) but would like to make it a bit stronger:

If the vector ends with a null terminator, you should not use (v.begin(), v.end()): you should use v.data() (or &v[0] for those prior to C++17).

If v does not have a null terminator, you should use (v.begin(), v.end()).

If you use begin() and end() and the vector does have a terminating zero, you’ll end up with a string "abc\0" for example, that is of length 4, but should really be only "abc".

No need functions

For example to give color to a container using colorcode

Container (

color:Color(0xff000000)

)

Here the 0xff is the format followed by color code

There is no error in the following piece of code:

float arr[4];
arr[0] = 6.28;
arr[1] = 2.50;
arr[2] = 9.73;
arr[3] = 4.364;
std::vector<float*> vec = std::vector<float*>();
vec.push_back(arr);
float* ptr = vec.front();
for (int i = 0; i < 3; i++)
    printf("%g\n", ptr[i]);

OUTPUT IS:

6.28

2.5

9.73

4.364

IN CONCLUSION:

std::vector<double*>

is another possibility apart from

std::vector<std::array<double, 4>>

that James McNellis suggested.

This will give you some control over the clicking, and looks tidy

<script>
var timeOut = 0;
function onClick(but)
{
    //code
    clearTimeout(timeOut);
    timeOut = setTimeout(function (){onClick(but)},1000);
}
</script>
<button onclick="onClick(this)">Start clicking</button>

There are people that claim to see performance differences: old mailing list thread. But I couldn't find any of them to be confirmed.

The main thing is to look at what kind of quotes (double or single) you are using inside your string. It helps to keep the number of escapes low. For instance, when you are working with HTML content inside your strings, it is easier to use single quotes so that you don't have to escape all double quotes around the attributes.

You can use "find" for remove all files in the /objects directory with 0 in size with the command:

find .git/objects/ -size 0 -delete

Backup is recommended.

Websockets and SSE (Server Sent Events) are both capable of pushing data to browsers, however they are not competing technologies.

Websockets connections can both send data to the browser and receive data from the browser. A good example of an application that could use websockets is a chat application.

SSE connections can only push data to the browser. Online stock quotes, or twitters updating timeline or feed are good examples of an application that could benefit from SSE.

In practice since everything that can be done with SSE can also be done with Websockets, Websockets is getting a lot more attention and love, and many more browsers support Websockets than SSE.

However, it can be overkill for some types of application, and the backend could be easier to implement with a protocol such as SSE.

Furthermore SSE can be polyfilled into older browsers that do not support it natively using just JavaScript. Some implementations of SSE polyfills can be found on the Modernizr github page.

Gotchas:

• SSE suffers from a limitation to the maximum number of open connections, which can be specially painful when opening various tabs as the limit is per browser and set to a very low number (6). The issue has been marked as "Won't fix" in Chrome and Firefox. This limit is per browser + domain, so that means that you can open 6 SSE connections across all of the tabs to www.example1.com and another 6 SSE connections to www.example2.com (thanks Phate).
• Only WS can transmit both binary data and UTF-8, SSE is limited to UTF-8. (Thanks to Chado Nihi).
• Some enterprise firewalls with packet inspection have trouble dealing with WebSockets (Sophos XG Firewall, WatchGuard, McAfee Web Gateway).

HTML5Rocks has some good information on SSE. From that page:

Server-Sent Events vs. WebSockets

Why would you choose Server-Sent Events over WebSockets? Good question.

One reason SSEs have been kept in the shadow is because later APIs like WebSockets provide a richer protocol to perform bi-directional, full-duplex communication. Having a two-way channel is more attractive for things like games, messaging apps, and for cases where you need near real-time updates in both directions. However, in some scenarios data doesn't need to be sent from the client. You simply need updates from some server action. A few examples would be friends' status updates, stock tickers, news feeds, or other automated data push mechanisms (e.g. updating a client-side Web SQL Database or IndexedDB object store). If you'll need to send data to a server, XMLHttpRequest is always a friend.

SSEs are sent over traditional HTTP. That means they do not require a special protocol or server implementation to get working. WebSockets on the other hand, require full-duplex connections and new Web Socket servers to handle the protocol. In addition, Server-Sent Events have a variety of features that WebSockets lack by design such as automatic reconnection, event IDs, and the ability to send arbitrary events.

TLDR summary:

Advantages of SSE over Websockets:

• Transported over simple HTTP instead of a custom protocol
• Can be poly-filled with javascript to "backport" SSE to browsers that do not support it yet.
• Built in support for re-connection and event-id
• Simpler protocol
• No trouble with corporate firewalls doing packet inspection

Advantages of Websockets over SSE:

• Real time, two directional communication.
• Native support in more browsers

Ideal use cases of SSE:

• Stock ticker streaming
• twitter feed updating
• Notifications to browser

SSE gotchas:

• No binary support
• Maximum open connections limit

It takes two numbers from the user, feeds them to the function called add (in the very last line of the code), and add will sum them up and print them.

#!/bin/bash

read -p "Enter the first  value: " x
read -p "Enter the second value: " y

add(){
    arg1=$1 # arg1 gets to be the first  assigned argument (note there are no spaces)
      arg2=$2 # arg2 gets to be the second assigned argument (note there are no spaces)

    echo $(($arg1 + $arg2))
}

add x y # Feeding the arguments

This method work for me:

DELIMITER $$
DROP PROCEDURE IF EXISTS db.test $$
CREATE PROCEDURE db.test(IN id INT(12),IN NAME VARCHAR(255))
 BEGIN
 INSERT INTO USER VALUES(id,NAME);
 END$$
DELIMITER ;

I've seen a lot of inadequate answers while trying to figure this one out. General response has been "you are trying to stop something that hasn't started" or "some other program is running on the port you need".

The problem for me turned out to be my firewall. I hadn't even considered this, but port 8005 (the port used for shutdown, thanks mindas), was blocked. I changed it, and now, no more error. Good luck.

If you want to use the REST end point,

$friends = $facebook->api(array('method' => 'friends.get'));

else if you are using the graph api, then use,

$friends = $facebook->api('/me/friends');

Maybe you can use this properties:

ActiveCell.Interior.ColorIndex - one of 56 preset colors

and

ActiveCell.Interior.Color - RGB color, used like that:

ActiveCell.Interior.Color = RGB(255,255,255)

In fact, with git version 1.8.3.1, it works:

[root@test test]# git br
* master
  release/0.1
  update
[root@test test]# git pull --rebase
remote: Enumerating objects: 9, done.
remote: Counting objects: 100% (9/9), done.
remote: Compressing objects: 100% (9/9), done.
remote: Total 9 (delta 2), reused 0 (delta 0)
Unpacking objects: 100% (9/9), done.
From http://xxx/scm/csdx/test-git
   d32ca6d..2caa393  release/0.1 -> origin/release/0.1
Current branch master is up to date.
[root@test test]# git --version
git version 1.8.3.1

In master branch, you can update all other branches. @Cascabel

I do not know which version break/fix it, in 2.17(which i use), it can work.

From Google OAuth2.0 for Client documentation,

• expires_in -- The number of seconds left before the token becomes invalid.

You can also use:

{{ word|striptags('<b>')|raw }}

so that only <b> tag will be allowed.

I noticed that invalid syntax error for no apparent reason can be caused by using space in:

print(f'{something something}')

Python IDLE seems to jump and highlight a part of the first line for some reason (even if the first line happens to be a comment), which is misleading.

The raw_input() function reads a line from input (i.e. the user) and returns a string

Python v3.x as raw_input() was renamed to input()

PEP 3111: raw_input() was renamed to input(). That is, the new input() function reads a line from sys.stdin and returns it with the trailing newline stripped. It raises EOFError if the input is terminated prematurely. To get the old behavior of input(), use eval(input()).

Ref: Docs Python 3

Available fonts (as of Oreo)

The Material Design Typography page has demos for some of these fonts and suggestions on choosing fonts and styles.

For code sleuths: fonts.xml is the definitive and ever-expanding list of Android fonts.

Using these fonts

Set the android:fontFamily and android:textStyle attributes, e.g.

<!-- Roboto Bold -->
<TextView
    android:fontFamily="sans-serif"
    android:textStyle="bold" />

to the desired values from this table:

Font                     | android:fontFamily          | android:textStyle
-------------------------|-----------------------------|-------------------
Roboto Thin              | sans-serif-thin             |
Roboto Light             | sans-serif-light            |
Roboto Regular           | sans-serif                  |
Roboto Bold              | sans-serif                  | bold
Roboto Medium            | sans-serif-medium           |
Roboto Black             | sans-serif-black            |
Roboto Condensed Light   | sans-serif-condensed-light  |
Roboto Condensed Regular | sans-serif-condensed        |
Roboto Condensed Medium  | sans-serif-condensed-medium |
Roboto Condensed Bold    | sans-serif-condensed        | bold
Noto Serif               | serif                       |
Noto Serif Bold          | serif                       | bold
Droid Sans Mono          | monospace                   |
Cutive Mono              | serif-monospace             |
Coming Soon              | casual                      |
Dancing Script           | cursive                     |
Dancing Script Bold      | cursive                     | bold
Carrois Gothic SC        | sans-serif-smallcaps        |

(Noto Sans is a fallback font; you can't specify it directly)

Note: this table is derived from fonts.xml. Each font's family name and style is listed in fonts.xml, e.g.

<family name="serif-monospace">
    <font weight="400" style="normal">CutiveMono.ttf</font>
</family>

serif-monospace is thus the font family, and normal is the style.

Compatibility

Based on the log of fonts.xml and the former system_fonts.xml, you can see when each font was added:

• Ice Cream Sandwich: Roboto regular, bold, italic, and bold italic
• Jelly Bean: Roboto light, light italic, condensed, condensed bold, condensed italic, and condensed bold italic
• Jelly Bean MR1: Roboto thin and thin italic
• Lollipop:
  • Roboto medium, medium italic, black, and black italic
  • Noto Serif regular, bold, italic, bold italic
  • Cutive Mono
  • Coming Soon
  • Dancing Script
  • Carrois Gothic SC
  • Noto Sans
• Oreo MR1: Roboto condensed medium

It's a little difficult to tell what you're trying to achieve, but assuming you're trying to get a Base64 string that when decoded is abcdef==, the following should work:

byte[] bytes = Encoding.UTF8.GetBytes("abcdef==");
string base64 = Convert.ToBase64String(bytes);
Console.WriteLine(base64);

This will output: YWJjZGVmPT0= which is abcdef== encoded in Base64.

Edit:

To decode a Base64 string, simply use Convert.FromBase64String(). E.g.

string base64 = "YWJjZGVmPT0=";
byte[] bytes = Convert.FromBase64String(base64);

At this point, bytes will be a byte[] (not a string). If we know that the byte array represents a string in UTF8, then it can be converted back to the string form using:

string str = Encoding.UTF8.GetString(bytes);
Console.WriteLine(str);

This will output the original input string, abcdef== in this case.

Type regsvr32 name.dll into the Command Prompt (executed in elevated mode!) and press "Enter." Note that name.dll should be replaced with the name of the DLL that you want to register. For example, if you want to register the iexplore.dll, type regsvr32 iexplore.dll.

The mutable keyword is very useful when creating stubs for class test purposes. You can stub a const function and still be able to increase (mutable) counters or whatever test functionality you have added to your stub. This keeps the interface of the stubbed class intact.

The standard way, which has already been proposed several times is:

for (var name in myObject) {
  alert(name);
}

However Internet Explorer 6, 7 and 8 have a bug in the JavaScript interpreter, which has the effect that some keys are not enumerated. If you run this code:

var obj = { toString: 12};
for (var name in obj) {
  alert(name);
}

If will alert "12" in all browsers except IE. IE will simply ignore this key. The affected key values are:

• isPrototypeOf
• hasOwnProperty
• toLocaleString
• toString
• valueOf

To be really safe in IE you have to use something like:

for (var key in myObject) {
  alert(key);
}

var shadowedKeys = [
  "isPrototypeOf",
  "hasOwnProperty",
  "toLocaleString",
  "toString",
  "valueOf"
];
for (var i=0, a=shadowedKeys, l=a.length; i<l; i++) {
  if map.hasOwnProperty(a[i])) {
    alert(a[i]);
  }
}

The good news is that EcmaScript 5 defines the Object.keys(myObject) function, which returns the keys of an object as array and some browsers (e.g. Safari 4) already implement it.

Seems to me you could've saved some memory by declaring your activity with "implements Handler.Callback"

There are only 4 specific atrributes:

1. value - Value is the default value of the input box when a page is first loaded. This is a common attribute for element regardless which type you are using.
2. min - Obviously, the minimum value you of the number. I should have specified minimum value to 0 for my demo up there as a negative number doesn't make sense for number of movie watched in a week.
3. max - Apprently, this represents the biggest number of the number input.
4. step - Step scale factor, default value is 1 if this attribute is not specified.

So you cannot control length of what user type by keyword. But the implementation of browsers may change.

Image can not be shown until it serves from any server. so you need to upload the image to your server to show its preview.

In regards to using extension to define data type. I noticed that MailChimp API is doing it, but I don't think this is a good idea.

GET /zzz/cars.json/1

GET /zzz/cars.xml/1

My sound like a good idea, but I think "older" approach is better - using HTTP headers

GET /xxx/cars/1
Accept: application/json

Also HTTP headers are much better for cross data type communication (if ever someone would need it)

POST /zzz/cars
Content-Type: application/xml     <--- indicates we sent XML to server
Accept: application/json          <--- indicates we want get data back in JSON format  

java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Ljava.lang.Integer;

you try to cast an Array of Object to cast into Array of Integer. You cant do it. This type of downcast is not permitted.

You can make an array of Integer, and after that copy every value of the first array into second array.

Best Solution is go to File -> Sync Project With Gradle Files

I hope this helped

You can add a method in Float Class, I learnt this from stackoverflow:

class Float
    def precision(p)
        # Make sure the precision level is actually an integer and > 0
        raise ArgumentError, "#{p} is an invalid precision level. Valid ranges are integers > 0." unless p.class == Fixnum or p < 0
        # Special case for 0 precision so it returns a Fixnum and thus doesn't have a trailing .0
        return self.round if p == 0
        # Standard case  
        return (self * 10**p).round.to_f / 10**p
    end
end

Mostly disabled attribute doesn't work with the anchor tags from HTML-5 onwards. Hence we have change it to ,let's say 'button' and style it accordingly with appropriate color,border-style etc. That's the most apt solution for any similar issue users are facing in Chrome . Only few elements support 'disabled' attribute: Span , select, option, textarea, input , button.

Editor warning: This solution is computationally inefficient and may bring down your connection for a large table.

NB - You need to do this first on a test copy of your table!

When I did it, I found that unless I also included AND n1.id <> n2.id, it deleted every row in the table.

1. If you want to keep the row with the lowest id value:

   DELETE n1 FROM names n1, names n2 WHERE n1.id > n2.id AND n1.name = n2.name
   

2. If you want to keep the row with the highest id value:

   DELETE n1 FROM names n1, names n2 WHERE n1.id < n2.id AND n1.name = n2.name
   

I used this method in MySQL 5.1

Not sure about other versions.

Update: Since people Googling for removing duplicates end up here
Although the OP's question is about DELETE, please be advised that using INSERT and DISTINCT is much faster. For a database with 8 million rows, the below query took 13 minutes, while using DELETE, it took more than 2 hours and yet didn't complete.

INSERT INTO tempTableName(cellId,attributeId,entityRowId,value)
    SELECT DISTINCT cellId,attributeId,entityRowId,value
    FROM tableName;

Splits the string in text on any consecutive runs of whitespace.

words = text.split()      

Split the string in text on delimiter: ",".

words = text.split(",")   

The words variable will be a list and contain the words from text split on the delimiter.

Pure numpy

numpy.loadtxt(open("test.csv", "rb"), delimiter=",", skiprows=1)

Check out the loadtxt documentation.

You can also use python's csv module:

import csv
import numpy
reader = csv.reader(open("test.csv", "rb"), delimiter=",")
x = list(reader)
result = numpy.array(x).astype("float")

You will have to convert it to your favorite numeric type. I guess you can write the whole thing in one line:

result = numpy.array(list(csv.reader(open("test.csv", "rb"), delimiter=","))).astype("float")

Added Hint:

You could also use pandas.io.parsers.read_csv and get the associated numpy array which can be faster.

if you want to automate the process via JS:

Include somewhere in the html:

<button onclick="playSound();" id="soundBtn">Play</button>  

and hide it via js :

<script type="text/javascript">

document.getElementById('soundBtn').style.visibility='hidden';

function performSound(){
var soundButton = document.getElementById("soundBtn");
soundButton.click();
}

function playSound() {
      const audio = new Audio("alarm.mp3");
      audio.play();
    }

</script>

if you want to play the sound just call performSound() somewhere!

What I have learned from every answer and visiting the blog is

what is the cross axis and main axis

• main axis is horizontal row and cross axis is vertical column - for flex-direction: row
• main axis is vertical column and cross axis is horizontal row - for flex-direction: column

Now align-content and align-items

align-content is for the row, it works if the container has (more than one row) Properties of align-content

.container {
  align-content: flex-start | flex-end | center | space-between | space-around | space-evenly | stretch | start | end | baseline | first baseline | last baseline + ... safe | unsafe;
}

align-items is for the items in row Properties of align-items

.container {
  align-items: stretch | flex-start | flex-end | center | baseline | first baseline | last baseline | start | end | self-start | self-end + ... safe | unsafe;
}

For more reference visit to flex

In my implementation, the cell I was referencing could have been several options. I used the following format where 'ws' is the current worksheet being edited

For each ws in Activeworkbook.Worksheets
    For i…
       For j...
...
ws.Cells(i, j).Value = "=HYPERLINK(""#'" & SHEET-REF-VAR & "'!" & CELL-REF-VAR & """,""" & SHEET-REF-VAR & """)"

// Assuming "?post=1234&action=edit"

var urlParams = new URLSearchParams(window.location.search);

console.log(urlParams.has('post')); // true

console.log(urlParams.get('action')); // "edit"

console.log(urlParams.getAll('action')); // ["edit"]

console.log(urlParams.toString()); // "?post=1234&action=edit"

console.log(urlParams.append('active', '1')); // "?post=1234&action=edit&active=1"

A web service typically offers a WSDL from which you can create client stubs automatically. Web Services are based on the SOAP protocol. ASP.NET Web API is a newer Microsoft framework which helps you to build REST based interfaces. The response can be either JSON or XML, but there is no way to generate clients automatically because Web API does not offer a service description like the WSDL from Web Services. So it depends on your requirements which one of the techniques you want to use. Perhaps even WCF fits your requirements better, just look at the MSDN documentation.

At the very core, the file extension you use makes no difference as to how perl interprets those files.

However, putting modules in .pm files following a certain directory structure that follows the package name provides a convenience. So, if you have a module Example::Plot::FourD and you put it in a directory Example/Plot/FourD.pm in a path in your @INC, then use and require will do the right thing when given the package name as in use Example::Plot::FourD.

The file must return true as the last statement to indicate successful execution of any initialization code, so it's customary to end such a file with 1; unless you're sure it'll return true otherwise. But it's better just to put the 1;, in case you add more statements.

If EXPR is a bareword, the require assumes a ".pm" extension and replaces "::" with "/" in the filename for you, to make it easy to load standard modules. This form of loading of modules does not risk altering your namespace.

All use does is to figure out the filename from the package name provided, require it in a BEGIN block and invoke import on the package. There is nothing preventing you from not using use but taking those steps manually.

For example, below I put the Example::Plot::FourD package in a file called t.pl, loaded it in a script in file s.pl.

C:\Temp> cat t.pl
package Example::Plot::FourD;

use strict; use warnings;

sub new { bless {} => shift }

sub something { print "something\n" }

"Example::Plot::FourD"

C:\Temp> cat s.pl
#!/usr/bin/perl
use strict; use warnings;

BEGIN {
    require 't.pl';
}

my $p = Example::Plot::FourD->new;
$p->something;


C:\Temp> s
something

This example shows that module files do not have to end in 1, any true value will do.

I had a similar problem. Just to help out someone with the same issue:

My error was the user file attribute for the files in /var/www. After changing them back to the user "www-data", the problem was gone.

probably not the way you are thinking. the iframe would have to <link> in the css file too. AND you can't do it even with javascript if it's on a different domain.

hope this help someone else : use innerHTML for using label object.

  document.getElementById('lableObject').innerHTML = res.FullName;

They are:

• print only takes one parameter, while echo can have multiple parameters.
• print returns a value (1), so can be used as an expression.
• echo is slightly faster.

The resource I always end up going back to about HTML emails is CampaignMonitor's CSS guide.

As their business is geared solely around email delivery, they know their stuff as well as anyone is going to

Your onclick fires before the href so it will change before the page is opened, you need to make the function handle the window opening like so:

function changeLink() {
    var link = document.getElementById("mylink");

    window.open(
      link.href,
      '_blank'
    );

    link.innerHTML = "facebook";
    link.setAttribute('href', "http://facebook.com");

    return false;
}

You can use within <td> tag css : display:inline-block

Like: <td style="display:inline-block">

function IsNumeric(val) {
    return Number(parseFloat(val)) === val;
}

Once you are in terminal/command line, access the database/collection you want to use as follows:

show dbs
use <db name>
show collections

choose your collection and type the following to see all contents of that collection:

db.collectionName.find()

More info here on the MongoDB Quick Reference Guide.

In the simplest case, just do

X <- read.csv(url("http://some.where.net/data/foo.csv"))

plus which ever options read.csv() may need.

Edit in Sep 2020 or 9 years later:

For a few years now R also supports directly passing the URL to read.csv:

X <- read.csv("http://some.where.net/data/foo.csv")

End of 2020 edit. Original post continutes.

Long answer: Yes this can be done and many packages have use that feature for years. E.g. the tseries packages uses exactly this feature to download stock prices from Yahoo! for almost a decade:

R> library(tseries)
Loading required package: quadprog
Loading required package: zoo

    ‘tseries’ version: 0.10-24

    ‘tseries’ is a package for time series analysis and computational finance.

    See ‘library(help="tseries")’ for details.

R> get.hist.quote("IBM")
trying URL 'http://chart.yahoo.com/table.csv?    ## manual linebreak here
  s=IBM&a=0&b=02&c=1991&d=5&e=08&f=2011&g=d&q=q&y=0&z=IBM&x=.csv'
Content type 'text/csv' length unknown
opened URL
.......... .......... .......... .......... ..........
.......... .......... .......... .......... ..........
.......... .......... .......... .......... ..........
.......... .......... .......... .......... ..........
.......... .......... .......... .......... ..........
........
downloaded 258 Kb

             Open   High    Low  Close
1991-01-02 112.87 113.75 112.12 112.12
1991-01-03 112.37 113.87 112.25 112.50
1991-01-04 112.75 113.00 111.87 112.12
1991-01-07 111.37 111.87 110.00 110.25
1991-01-08 110.37 110.37 108.75 109.00
1991-01-09 109.75 110.75 106.75 106.87
[...]

This is all exceedingly well documented in the manual pages for help(connection) and help(url). Also see the manul on 'Data Import/Export' that came with R.

Two steps:

1. set up user with wildcard:
   create user 'root'@'%' identified by 'some_characters'; GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY PASSWORD 'some_characters' WITH GRANT OPTION

2. vim /etc/my.cnf
   add the following:
   bind-address=0.0.0.0

restart server, you should not have any problem connecting to it.

I believe James Hunt's answer will solve the problem.

@user3731784: In your new message, the compiler seems to be confused because of the "C:\Program Files\IAR systems\Embedded Workbench 7.0\430\lib\dlib\d1430fn.h" argument. Why are you giving this header file at the middle of other compiler switches? Please correct this and try again. Also, it probably is a good idea to give the source file name after all the compiler switches and not at the beginning.

In @dudusan's example, you could also reverse the order of I1, and then sort ascending:

> rum <- read.table(textConnection("P1  P2  P3  T1  T2  T3  I1  I2
+   2   3   5   52  43  61  6   b
+   6   4   3   72  NA  59  1   a
+   1   5   6   55  48  60  6   f
+   2   4   4   65  64  58  2   b
+   1   5   6   55  48  60  6   c"), header = TRUE)
> f=factor(rum$I1)   
> levels(f) <- sort(levels(f), decreasing = TRUE)
> rum[order(as.character(f), rum$I2), ]
  P1 P2 P3 T1 T2 T3 I1 I2
1  2  3  5 52 43 61  6  b
5  1  5  6 55 48 60  6  c
3  1  5  6 55 48 60  6  f
4  2  4  4 65 64 58  2  b
2  6  4  3 72 NA 59  1  a
> 

This seems a bit shorter, you don't reverse the order of I2 twice.

To demonstrate, consider the following set, which holds different Person objects:

Set<Person> people = new HashSet<Person>();
people.add(new Person("Tharindu", 10));
people.add(new Person("Martin", 20));
people.add(new Person("Fowler", 30));

Person Model Class

public class Person {
    private String name;
    private int age;

    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }

    //TODO - getters,setters ,overridden toString & compareTo methods

}

1. The for statement has a form designed for iteration through Collections and arrays .This form is sometimes referred to as the enhanced for statement, and can be used to make your loops more compact and easy to read.

for(Person p:people){
  System.out.println(p.getName());
}

2. Java 8 - java.lang.Iterable.forEach(Consumer)

people.forEach(p -> System.out.println(p.getName()));

default void forEach(Consumer<? super T> action)

Performs the given action for each element of the Iterable until all elements have been processed or the action throws an exception. Unless otherwise specified by the implementing class, actions are performed in the order of iteration (if an iteration order is specified). Exceptions thrown by the action are relayed to the caller. Implementation Requirements:

The default implementation behaves as if: 

for (T t : this)
     action.accept(t);

Parameters: action - The action to be performed for each element

Throws: NullPointerException - if the specified action is null

Since: 1.8

Your problem stems from a misunderstanding of the or operator that is common to people learning programming languages like this. Yes, your immediate problem can be solved by writing x ~= 0 and x ~= 1, but I'll go into a little more detail about why your attempted solution doesn't work.

When you read x ~=(0 or 1) or x ~= 0 or 1 it's natural to parse this as you would the sentence "x is not equal to zero or one". In the ordinary understanding of that statement, "x" is the subject, "is not equal to" is the predicate or verb phrase, and "zero or one" is the object, a set of possibilities joined by a conjunction. You apply the subject with the verb to each item in the set.

However, Lua does not parse this based on the rules of English grammar, it parses it in binary comparisons of two elements based on its order of operations. Each operator has a precedence which determines the order in which it will be evaluated. or has a lower precedence than ~=, just as addition in mathematics has a lower precedence than multiplication. Everything has a lower precedence than parentheses.

As a result, when evaluating x ~=(0 or 1), the interpreter will first compute 0 or 1 (because of the parentheses) and then x ~= the result of the first computation, and in the second example, it will compute x ~= 0 and then apply the result of that computation to or 1.

The logical operator or "returns its first argument if this value is different from nil and false; otherwise, or returns its second argument". The relational operator ~= is the inverse of the equality operator ==; it returns true if its arguments are different types (x is a number, right?), and otherwise compares its arguments normally.

Using these rules, x ~=(0 or 1) will decompose to x ~= 0 (after applying the or operator) and this will return 'true' if x is anything other than 0, including 1, which is undesirable. The other form, x ~= 0 or 1 will first evaluate x ~= 0 (which may return true or false, depending on the value of x). Then, it will decompose to one of false or 1 or true or 1. In the first case, the statement will return 1, and in the second case, the statement will return true. Because control structures in Lua only consider nil and false to be false, and anything else to be true, this will always enter the if statement, which is not what you want either.

There is no way that you can use binary operators like those provided in programming languages to compare a single variable to a list of values. Instead, you need to compare the variable to each value one by one. There are a few ways to do this. The simplest way is to use De Morgan's laws to express the statement 'not one or zero' (which can't be evaluated with binary operators) as 'not one and not zero', which can trivially be written with binary operators:

if x ~= 1 and x ~= 0 then
    print( "X must be equal to 1 or 0" )
    return
end

Alternatively, you can use a loop to check these values:

local x_is_ok = false
for i = 0,1 do 
    if x == i then
        x_is_ok = true
    end
end
if not x_is_ok then
    print( "X must be equal to 1 or 0" )
    return
end

Finally, you could use relational operators to check a range and then test that x was an integer in the range (you don't want 0.5, right?)

if not (x >= 0 and x <= 1 and math.floor(x) == x) then
    print( "X must be equal to 1 or 0" )
    return
end

Note that I wrote x >= 0 and x <= 1. If you understood the above explanation, you should now be able to explain why I didn't write 0 <= x <= 1, and what this erroneous expression would return!

I was searching for days for this command.

This worked for me outside any session or somthing like this.

# you get an array = your tensor.eval(session=tf.compat.v1.Session())
an_array = a_tensor.eval(session=tf.compat.v1.Session())

https://kite.com/python/answers/how-to-convert-a-tensorflow-tensor-to-a-numpy-array-in-python

Here it is:

select player_name, player_salary, (player_salary * 1.1) as player_newsalary
from player 
order by player_name, player_salary, player_newsalary desc

You don't need to "group by" if there is only one instance of a player in the table.

It's simply the domain that your "facebook" application (wich means application visible on facebook but hosted on the website www.xyz.com) will be hosted. So you can put App Domain = www.xyz.com

The major difference is that

1. Ternary Operator expression expr1 ?: expr3 returns expr1 if expr1 evaluates to TRUE but on the other hand Null Coalescing Operator expression (expr1) ?? (expr2) evaluates to expr1 if expr1 is not NULL

2. Ternary Operator expr1 ?: expr3 emit a notice if the left-hand side value (expr1) does not exist but on the other hand Null Coalescing Operator (expr1) ?? (expr2) In particular, does not emit a notice if the left-hand side value (expr1) does not exist, just like isset().

3. TernaryOperator is left associative

   ((true ? 'true' : false) ? 't' : 'f');
   

   Null Coalescing Operator is right associative

   ($a ?? ($b ?? $c));
   

Now lets explain the difference between by example :

Ternary Operator (?:)

$x='';
$value=($x)?:'default';
var_dump($value);

// The above is identical to this if/else statement
if($x){
  $value=$x;
}
else{
  $value='default';
}
var_dump($value);

Null Coalescing Operator (??)

$value=($x)??'default';
var_dump($value);

// The above is identical to this if/else statement
if(isset($x)){
  $value=$x;
}
else{
  $value='default';
}
var_dump($value);

Here is the table that explain the difference and similarity between '??' and ?:

Special Note : null coalescing operator and ternary operator is an expression, and that it doesn't evaluate to a variable, but to the result of an expression. This is important to know if you want to return a variable by reference. The statement return $foo ?? $bar; and return $var == 42 ? $a : $b; in a return-by-reference function will therefore not work and a warning is issued.

Add following at start of cell and run it:

from IPython.display import clear_output
clear_output(wait=True)

Acording with the documentation, the method getEntity in Jax rs 2.0 return a InputStream. If you need to convert to InputStream to String with JSON format, you need to cast the two formats. For example in my case, I implemented the next method:

    private String processResponse(Response response) {
    if (response.getEntity() != null) {
        try {
            InputStream salida = (InputStream) response.getEntity();
            StringWriter writer = new StringWriter();
            IOUtils.copy(salida, writer, "UTF-8");
            return writer.toString();
        } catch (IOException ex) {
            LOG.log(Level.SEVERE, null, ex);
        }
    }
    return null;
}

why I implemented this method. Because a read in differets blogs that many developers they have the same problem whit the version in jaxrs using the next methods

String output = response.readEntity(String.class)

and

String output = response.getEntity(String.class)

The first works using jersey-client from com.sun.jersey library and the second found using the jersey-client from org.glassfish.jersey.core.

This is the error that was being presented to me: org.glassfish.jersey.client.internal.HttpUrlConnector$2 cannot be cast to java.lang.String

I use the following maven dependency:

<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>2.28</version>

What I do not know is why the readEntity method does not work.I hope you can use the solution.

Carlos Cepeda

I removed whole css under in head, which was loading colors and images for error/highlighting messages in page.And the website is working fine now.

public class Class1 {
private String extref="MY";

public String getExtref() {
    return extref;
}

public String setExtref(String extref) {
    return this.extref = extref;
}

public static void main(String[] args) {

    Class1 obj=new Class1();
    String value=obj.setExtref("AFF");
    int returnedValue=getMethod(value);     
    System.out.println(returnedValue);
}

/**
 * @param value
 * @return
 */
private static int getMethod(String value) {
      HashMap<Integer, String> hashmap1 = new HashMap<Integer, String>();
        hashmap1.put(1,"MY");
        hashmap1.put(2,"AFF");

        if (hashmap1.containsValue(value))
        {
            for (Map.Entry<Integer,String> e : hashmap1.entrySet()) {
                Integer key = e.getKey();
                Object value2 = e.getValue();
                if ((value2.toString()).equalsIgnoreCase(value))
                {
                    return key;
                }
            }
        }   
        return 0;

}
}

If you really want to got nuts, add a new method to the prototype:

if (!('empty' in Array.prototype)) {
  Array.prototype.empty = function () {
    return this.length === 0;
  };
}

[1, 2].empty() // false
[].empty() // true

DEMO

For any situation where you have an unknown string and you need to figure out which of a bunch of other strings it matches up to, the only solution which doesn't get slower as you add more items is to use an array, but have all the possible strings as keys. So your switch can be replaced with the following:

// used for $current_home = 'current';
$group1 = array(
        'home'  => True,
        );

// used for $current_users = 'current';
$group2 = array(
        'users.online'      => True,
        'users.location'    => True,
        'users.featured'    => True,
        'users.new'         => True,
        'users.browse'      => True,
        'users.search'      => True,
        'users.staff'       => True,
        );

// used for $current_forum = 'current';
$group3 = array(
        'forum'     => True,
        );

if(isset($group1[$p]))
    $current_home = 'current';
else if(isset($group2[$p]))
    $current_users = 'current';
else if(isset($group3[$p]))
    $current_forum = 'current';
else
    user_error("\$p is invalid", E_USER_ERROR);

This doesn't look as clean as a switch(), but it is the only fast solution which doesn't include writing a small library of functions and classes to keep it tidy. It is still very easy to add items to the arrays.

As my experience, you can add another domain which listens different port than 7001, and use this domain in to deploy app.

Here's an example: http://st-curriculum.oracle.com/obe/fmw/wls/10g/r3/installconfig/install_wls/install_wls.htm

HTH.

You don't need to change the delimiter to display the right part of the string with cut.

The -f switch of the cut command is the n-TH element separated by your delimiter : :, so you can just type :

 grep puddle2_1557936 | cut -d ":" -f2

Another solutions (adapt it a bit) if you want fun :

Using grep :

grep -oP 'puddle2_1557936:\K.*' <<< 'puddle2_1557936:/home/rogers.williams/folderz/puddle2'                                                                        
/home/rogers.williams/folderz/puddle2

or still with look around regex

grep -oP '(?<=puddle2_1557936:).*' <<< 'puddle2_1557936:/home/rogers.williams/folderz/puddle2'                                                                    
/home/rogers.williams/folderz/puddle2

or with perl :

perl -lne '/puddle2_1557936:(.*)/ and print $1' <<< 'puddle2_1557936:/home/rogers.williams/folderz/puddle2'                                                      
/home/rogers.williams/folderz/puddle2

or using ruby (thanks to glenn jackman)

ruby -F: -ane '/puddle2_1557936/ and puts $F[1]' <<< 'puddle2_1557936:/home/rogers.williams/folderz/puddle2'
/home/rogers.williams/folderz/puddle2

or with awk :

awk -F'puddle2_1557936:' '{print $2}'  <<< 'puddle2_1557936:/home/rogers.williams/folderz/puddle2'
/home/rogers.williams/folderz/puddle2

or with python :

python -c 'import sys; print(sys.argv[1].split("puddle2_1557936:")[1])' 'puddle2_1557936:/home/rogers.williams/folderz/puddle2'
/home/rogers.williams/folderz/puddle2

or using only bash :

IFS=: read _ a <<< "puddle2_1557936:/home/rogers.williams/folderz/puddle2"
echo "$a"
/home/rogers.williams/folderz/puddle2

or using js in a shell :

js<<EOF
var x = 'puddle2_1557936:/home/rogers.williams/folderz/puddle2'
print(x.substr(x.indexOf(":")+1))
EOF
/home/rogers.williams/folderz/puddle2

or using php in a shell :

php -r 'preg_match("/puddle2_1557936:(.*)/", $argv[1], $m); echo "$m[1]\n";' 'puddle2_1557936:/home/rogers.williams/folderz/puddle2' 
/home/rogers.williams/folderz/puddle2

First, you need to understand the difference between window and document. The window object is a top level client side object. There is nothing above the window object. JavaScript is an object orientated language. You start with an object and apply methods to its properties or the properties of its object groups. For example, the document object is an object of the window object. To change the document's background color, you'd set the document's bgcolor property.

window.document.bgcolor = "red" 

To answer your question, There is no difference in the end result between window and document scrollTop. Both will give the same output.

Check working example at http://jsfiddle.net/7VRvj/6/

In general use document mainly to register events and use window to do things like scroll, scrollTop, and resize.

Use type = "button" instead of "submit", then add an onClick handler for it.

For example:

<input type="button" value="Increment" onClick="myVar++;" />

If in every li you have only one row of text you can put text indent on li. Like this :

ul {
  list-style: disc;
}
ul li {
   text-indent: 5px;
}

or

ul {
 list-style: disc;
}
ul li {
   text-indent: -5px;
}

DECLARE @StartTime datetime
DECLARE @EndTime datetime
SELECT @StartTime=GETDATE() 

 -- Write Your Query


SELECT @EndTime=GETDATE()

--This will return execution time of your query
SELECT DATEDIFF(MS,@StartTime,@EndTime) AS [Duration in millisecs]

You can also See this solution

Try:

name = "^aH^ai"
name = name:gsub("%^a", "")

See also: http://lua-users.org/wiki/StringLibraryTutorial

Do you mean programatically, or just while you're developing and debugging? If the latter, you can see that info from the DDMS perspective in Eclipse. When your emulator (possibly even physical phone that is plugged in) is running, it will list the active processes in a window on the left. You can select it and there's an option to track the heap allocations.

var value = (uint) Enum.Parse(typeof(baseKey), "HKEY_LOCAL_MACHINE");  

The other thing to be careful about, is to use the clf (clear figure) command when you are starting a fresh plot. Otherwise you may be plotting on a pre-existing figure (not possible with the figure command by itself, but if you do figure(2) there may already be a figure #2), with more than one axis, or an axis that is placed kinda funny. Use clf to ensure that you're starting from scratch:

figure(N);
clf;
plot(something);
...

Might be a pasting problem, but as far as I can see from your code, you're missing the single quotes around the HTML part you're echo-ing.

If not, could you post the code correctly and tell us what line is causing the error?

You're trying to use the MatFormFieldComponent in SearchComponent but you're not importing the MatFormFieldModule (which exports MatFormFieldComponent); you only export it.

Your MaterialModule needs to import it.

@NgModule({
  imports: [
    MatFormFieldModule,
  ],
  exports: [
    MatButtonModule,
    MatFormFieldModule,
    MatInputModule,
    MatRippleModule,
  ],
  declarations: [
    SearchComponent,
  ],
})
export class MaterialModule { }

Yes,u can overload main method but the interpreter will always search for the correct main method syntax to begin the execution.. And yes u have to call the overloaded main method with the help of object.

class Sample{
public void main(int a,int b){
System.out.println("The value of a is "  +a);
}
public static void main(String args[]){
System.out.println("We r in main method");
Sample obj=new Sample();
obj.main(5,4);
main(3);
}
public static void main(int c){
System.out.println("The value of c  is"  +c);
}
}

The output of the program is:
We r in main method
The value of a is 5
The value of c is 3

this part :

"Your new price is: $"(float(price)

asks python to call this string:

"Your new price is: $"

just like you would a function: function( some_args) which will ALWAYS trigger the error:

TypeError: 'str' object is not callable

Summary & TL;DR:

This answer hopes to be a comprehensive wrap-up of information from other answers.

The very short version, given the data from the question plus a couple extras:

flat_array   = [  apple, 1,   banana, 2  ] # count=4
nested_array = [ [apple, 1], [banana, 2] ] # count=2 of count=2 k,v arrays
incomplete_f = [  apple, 1,   banana     ] # count=3 - missing last value
incomplete_n = [ [apple, 1], [banana   ] ] # count=2 of either k or k,v arrays


# there's one option for flat_array:
h1  = Hash[*flat_array]                     # => {apple=>1, banana=>2}

# two options for nested_array:
h2a = nested_array.to_h # since ruby 2.1.0    => {apple=>1, banana=>2}
h2b = Hash[nested_array]                    # => {apple=>1, banana=>2}

# ok if *only* the last value is missing:
h3  = Hash[incomplete_f.each_slice(2).to_a] # => {apple=>1, banana=>nil}
# always ok for k without v in nested array:
h4  = Hash[incomplete_n] # or .to_h           => {apple=>1, banana=>nil}

# as one might expect:
h1 == h2a # => true
h1 == h2b # => true
h1 == h3  # => false
h3 == h4  # => true

Discussion and details follow.

Setup: variables

In order to show the data we'll be using up front, I'll create some variables to represent various possibilities for the data. They fit into the following categories:

Based on what was directly in the question, as a1 and a2:

(Note: I presume that apple and banana were meant to represent variables. As others have done, I'll be using strings from here on so that input and results can match.)

a1 = [  'apple', 1 ,  'banana', 2  ] # flat input
a2 = [ ['apple', 1], ['banana', 2] ] # key/value paired input

Multi-value keys and/or values, as a3:

In some other answers, another possibility was presented (which I expand on here) – keys and/or values may be arrays on their own:

a3 = [ [ 'apple',                   1   ],
       [ 'banana',                  2   ],
       [ ['orange','seedless'],     3   ],
       [ 'pear',                 [4, 5] ],
     ]

Unbalanced array, as a4:

For good measure, I thought I'd add one for a case where we might have an incomplete input:

a4 = [ [ 'apple',                   1],
       [ 'banana',                  2],
       [ ['orange','seedless'],     3],
       [ 'durian'                    ], # a spiky fruit pricks us: no value!
     ]

Now, to work:

Starting with an initially-flat array, a1:

Some have suggested using #to_h (which showed up in Ruby 2.1.0, and can be backported to earlier versions). For an initially-flat array, this doesn't work:

a1.to_h   # => TypeError: wrong element type String at 0 (expected array)

Using Hash::[] combined with the splat operator does:

Hash[*a1] # => {"apple"=>1, "banana"=>2}

So that's the solution for the simple case represented by a1.

With an array of key/value pair arrays, a2:

With an array of [key,value] type arrays, there are two ways to go.

First, Hash::[] still works (as it did with *a1):

Hash[a2] # => {"apple"=>1, "banana"=>2}

And then also #to_h works now:

a2.to_h  # => {"apple"=>1, "banana"=>2}

So, two easy answers for the simple nested array case.

This remains true even with sub-arrays as keys or values, as with a3:

Hash[a3] # => {"apple"=>1, "banana"=>2, ["orange", "seedless"]=>3, "pear"=>[4, 5]} 
a3.to_h  # => {"apple"=>1, "banana"=>2, ["orange", "seedless"]=>3, "pear"=>[4, 5]}

But durians have spikes (anomalous structures give problems):

If we've gotten input data that's not balanced, we'll run into problems with #to_h:

a4.to_h  # => ArgumentError: wrong array length at 3 (expected 2, was 1)

But Hash::[] still works, just setting nil as the value for durian (and any other array element in a4 that's just a 1-value array):

Hash[a4] # => {"apple"=>1, "banana"=>2, ["orange", "seedless"]=>3, "durian"=>nil}

Flattening - using new variables a5 and a6

A few other answers mentioned flatten, with or without a 1 argument, so let's create some new variables:

a5 = a4.flatten
# => ["apple", 1, "banana", 2,  "orange", "seedless" , 3, "durian"] 
a6 = a4.flatten(1)
# => ["apple", 1, "banana", 2, ["orange", "seedless"], 3, "durian"] 

I chose to use a4 as the base data because of the balance problem we had, which showed up with a4.to_h. I figure calling flatten might be one approach someone might use to try to solve that, which might look like the following.

flatten without arguments (a5):

Hash[*a5]       # => {"apple"=>1, "banana"=>2, "orange"=>"seedless", 3=>"durian"}
# (This is the same as calling `Hash[*a4.flatten]`.)

At a naïve glance, this appears to work – but it got us off on the wrong foot with the seedless oranges, thus also making 3 a key and durian a value.

And this, as with a1, just doesn't work:

a5.to_h # => TypeError: wrong element type String at 0 (expected array)

So a4.flatten isn't useful to us, we'd just want to use Hash[a4]

The flatten(1) case (a6):

But what about only partially flattening? It's worth noting that calling Hash::[] using splat on the partially-flattened array (a6) is not the same as calling Hash[a4]:

Hash[*a6] # => ArgumentError: odd number of arguments for Hash

Pre-flattened array, still nested (alternate way of getting a6):

But what if this was how we'd gotten the array in the first place? (That is, comparably to a1, it was our input data - just this time some of the data can be arrays or other objects.) We've seen that Hash[*a6] doesn't work, but what if we still wanted to get the behavior where the last element (important! see below) acted as a key for a nil value?

In such a situation, there's still a way to do this, using Enumerable#each_slice to get ourselves back to key/value pairs as elements in the outer array:

a7 = a6.each_slice(2).to_a
# => [["apple", 1], ["banana", 2], [["orange", "seedless"], 3], ["durian"]] 

Note that this ends up getting us a new array that isn't "identical" to a4, but does have the same values:

a4.equal?(a7) # => false
a4 == a7      # => true

And thus we can again use Hash::[]:

Hash[a7] # => {"apple"=>1, "banana"=>2, ["orange", "seedless"]=>3, "durian"=>nil}
# or Hash[a6.each_slice(2).to_a]

But there's a problem!

It's important to note that the each_slice(2) solution only gets things back to sanity if the last key was the one missing a value. If we later added an extra key/value pair:

a4_plus = a4.dup # just to have a new-but-related variable name
a4_plus.push(['lychee', 4])
# => [["apple",                1],
#     ["banana",               2],
#     [["orange", "seedless"], 3], # multi-value key
#     ["durian"],              # missing value
#     ["lychee", 4]]           # new well-formed item

a6_plus = a4_plus.flatten(1)
# => ["apple", 1, "banana", 2, ["orange", "seedless"], 3, "durian", "lychee", 4]

a7_plus = a6_plus.each_slice(2).to_a
# => [["apple",                1],
#     ["banana",               2],
#     [["orange", "seedless"], 3], # so far so good
#     ["durian",               "lychee"], # oops! key became value!
#     [4]]                     # and we still have a key without a value

a4_plus == a7_plus # => false, unlike a4 == a7

And the two hashes we'd get from this are different in important ways:

ap Hash[a4_plus] # prints:
{
                     "apple" => 1,
                    "banana" => 2,
    [ "orange", "seedless" ] => 3,
                    "durian" => nil, # correct
                    "lychee" => 4    # correct
}

ap Hash[a7_plus] # prints:
{
                     "apple" => 1,
                    "banana" => 2,
    [ "orange", "seedless" ] => 3,
                    "durian" => "lychee", # incorrect
                           4 => nil       # incorrect
}

(Note: I'm using awesome_print's ap just to make it easier to show the structure here; there's no conceptual requirement for this.)

So the each_slice solution to an unbalanced flat input only works if the unbalanced bit is at the very end.

Take-aways:

1. Whenever possible, set up input to these things as [key, value] pairs (a sub-array for each item in the outer array).
2. When you can indeed do that, either #to_h or Hash::[] will both work.
3. If you're unable to, Hash::[] combined with the splat (*) will work, so long as inputs are balanced.
4. With an unbalanced and flat array as input, the only way this will work at all reasonably is if the last value item is the only one that's missing.

Side-note: I'm posting this answer because I feel there's value to be added – some of the existing answers have incorrect information, and none (that I read) gave as complete an answer as I'm endeavoring to do here. I hope that it's helpful. I nevertheless give thanks to those who came before me, several of whom provided inspiration for portions of this answer.

list1 = [10,-4,5,2,33,4,7,8,2,3,5,8,99,-34]

print(list1)

max_v=list1[0]

min_v=list1[0]

for x in list1:
    if x>max_v:
        max_v=x
        print('X is {0} and max is {1}'.format(x,max_v))
for x in list1:
    if x<min_v:
        min_v=x
        print('X is {0} and min is {1}'.format(x,min_v))

print('Max values is ' + str(max_v))
print('Min values is ' + str(min_v))

This test shows that your second option can perform significantly better. Findings first, then the code:

one filter with predicate of form u -> exp1 && exp2, list size 10000000, averaged over 100 runs: LongSummaryStatistics{count=100, sum=4142, min=29, average=41.420000, max=82}
two filters with predicates of form u -> exp1, list size 10000000, averaged over 100 runs: LongSummaryStatistics{count=100, sum=13315, min=117, average=133.150000, max=153}
one filter with predicate of form predOne.and(pred2), list size 10000000, averaged over 100 runs: LongSummaryStatistics{count=100, sum=10320, min=82, average=103.200000, max=127}

now the code:

enum Gender {
    FEMALE,
    MALE
}

static class User {
    Gender gender;
    int age;

    public User(Gender gender, int age){
        this.gender = gender;
        this.age = age;
    }

    public Gender getGender() {
        return gender;
    }

    public void setGender(Gender gender) {
        this.gender = gender;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}

static long test1(List<User> users){
    long time1 = System.currentTimeMillis();
    users.stream()
            .filter((u) -> u.getGender() == Gender.FEMALE && u.getAge() % 2 == 0)
            .allMatch(u -> true);                   // least overhead terminal function I can think of
    long time2 = System.currentTimeMillis();
    return time2 - time1;
}

static long test2(List<User> users){
    long time1 = System.currentTimeMillis();
    users.stream()
            .filter(u -> u.getGender() == Gender.FEMALE)
            .filter(u -> u.getAge() % 2 == 0)
            .allMatch(u -> true);                   // least overhead terminal function I can think of
    long time2 = System.currentTimeMillis();
    return time2 - time1;
}

static long test3(List<User> users){
    long time1 = System.currentTimeMillis();
    users.stream()
            .filter(((Predicate<User>) u -> u.getGender() == Gender.FEMALE).and(u -> u.getAge() % 2 == 0))
            .allMatch(u -> true);                   // least overhead terminal function I can think of
    long time2 = System.currentTimeMillis();
    return time2 - time1;
}

public static void main(String... args) {
    int size = 10000000;
    List<User> users =
    IntStream.range(0,size)
            .mapToObj(i -> i % 2 == 0 ? new User(Gender.MALE, i % 100) : new User(Gender.FEMALE, i % 100))
            .collect(Collectors.toCollection(()->new ArrayList<>(size)));
    repeat("one filter with predicate of form u -> exp1 && exp2", users, Temp::test1, 100);
    repeat("two filters with predicates of form u -> exp1", users, Temp::test2, 100);
    repeat("one filter with predicate of form predOne.and(pred2)", users, Temp::test3, 100);
}

private static void repeat(String name, List<User> users, ToLongFunction<List<User>> test, int iterations) {
    System.out.println(name + ", list size " + users.size() + ", averaged over " + iterations + " runs: " + IntStream.range(0, iterations)
            .mapToLong(i -> test.applyAsLong(users))
            .summaryStatistics());
}

var wordCount =
    from word in words
    group word by word into g
    select new { g.Key, Count = g.Count() };    

This is taken from one of the examples in the linqpad

This happens because $cOTLdata is not null but the index 'char_data' does not exist. Previous versions of PHP may have been less strict on such mistakes and silently swallowed the error / notice while 7.4 does not do this anymore.

To check whether the index exists or not you can use isset():

isset($cOTLdata['char_data'])

Which means the line should look something like this:

$len = isset($cOTLdata['char_data']) ? count($cOTLdata['char_data']) : 0;

Note I switched the then and else cases of the ternary operator since === null is essentially what isset already does (but in the positive case).

Check out Pathname and in particular Pathname#exist?.

File and its FileTest module are perhaps simpler/more direct, but I find Pathname a nicer interface in general.

My problem was that I spelt one of the libraries wrongly when installing with pip3, which ended up all the other downloaded libaries in the same command not being installed. Just run pip3 install on them again and they should be installed from their cache.

Let's say you have a Login action which provides the user with a login screen, then receives the user name and password back after the user submits the form:

public ActionResult Login() {
    return View();
}

public ActionResult Login(string userName, string password) {
    // do login stuff
    return View();
}

MVC isn't being given clear instructions on which action is which, even though we can tell by looking at it. If you add [HttpGet] to the first action and [HttpPost] to the section action, MVC clearly knows which action is which.

Why? See Request Methods. Long and short: When a user views a page, that's a GET request and when a user submits a form, that's usually a POST request. HttpGet and HttpPost just restrict the action to the applicable request type.

[HttpGet]
public ActionResult Login() {
    return View();
}

[HttpPost]
public ActionResult Login(string userName, string password) {
    // do login stuff
    return View();
}

You can also combine the request method attributes if your action serves requests from multiple verbs:

[AcceptVerbs(HttpVerbs.Get | HttpVerbs.Post)].

Putting this question in the context of NIO and NIO.2 in java 7, async IO is one step more advanced than non-blocking. With java NIO non-blocking calls, one would set all channels (SocketChannel, ServerSocketChannel, FileChannel, etc) as such by calling AbstractSelectableChannel.configureBlocking(false). After those IO calls return, however, you will likely still need to control the checks such as if and when to read/write again, etc.
For instance,

while (!isDataEnough()) {
    socketchannel.read(inputBuffer);
    // do something else and then read again
}

With the asynchronous api in java 7, these controls can be made in more versatile ways. One of the 2 ways is to use CompletionHandler. Notice that both read calls are non-blocking.

asyncsocket.read(inputBuffer, 60, TimeUnit.SECONDS /* 60 secs for timeout */, 
    new CompletionHandler<Integer, Object>() {
        public void completed(Integer result, Object attachment) {...}  
        public void failed(Throwable e, Object attachment) {...}
    }
}

I'm the one who donated the Ant export filter to Eclipse. I added the auto export feature, but only to my personal plug-in eclipse2ant, which I still maintain to coordinate bug fixes.

Unfortunately I have no time to merge it to the official Eclipse builds.

FastAPI makes use of the Ellipsis for creating required Parameters. https://fastapi.tiangolo.com/tutorial/query-params-str-validations/

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

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

Check out Jeff Friedl's Mastering Regular Expressions book.

The issue we had was in correctly updating the view after the app is launched. There are complicated sequences of lifecycle methods here that get confusing.

Lifecycle Methods

Our testing for iOS 10 revealed the following sequences of lifecycle methods for the various cases:

DELEGATE METHODS CALLED WHEN OPENING APP

    Opening app when system killed or user killed
        didFinishLaunchingWithOptions
        applicationDidBecomeActive

    Opening app when backgrounded
        applicationWillEnterForeground
        applicationDidBecomeActive

DELEGATE METHODS CALLED WHEN OPENING PUSH

    Opening push when system killed
        [receiving push causes didFinishLaunchingWithOptions (with options) and didReceiveRemoteNotification:background]
        applicationWillEnterForeground
        didReceiveRemoteNotification:inactive
        applicationDidBecomeActive

    Opening push when user killed
        didFinishLaunchingWithOptions (with options)
        didReceiveRemoteNotification:inactive [only completionHandler version]
        applicationDidBecomeActive

    Opening push when backgrounded
        [receiving push causes didReceiveRemoteNotification:background]
        applicationWillEnterForeground
        didReceiveRemoteNotification:inactive
        applicationDidBecomeActive

The problem

Ok, so now we need to:

1. Determine if the user is opening the app from a push
2. Update the view based on the push state
3. Clear the state so that subsequent opens don't return the user to the same position.

The tricky bit is that updating the view has to happen when the application actually becomes active, which is the same lifecycle method in all cases.

Sketch of our solution

Here are the main components of our solution:

1. Store a notificationUserInfo instance variable on the AppDelegate.
2. Set notificationUserInfo = nil in both applicationWillEnterForeground and didFinishLaunchingWithOptions.
3. Set notificationUserInfo = userInfo in didReceiveRemoteNotification:inactive
4. From applicationDidBecomeActive always call a custom method openViewFromNotification and pass self.notificationUserInfo. If self.notificationUserInfo is nil then return early, otherwise open the view based on the notification state found in self.notificationUserInfo.

Explanation

When opening from a push didFinishLaunchingWithOptions or applicationWillEnterForeground is always called immediately before didReceiveRemoteNotification:inactive, so we first reset notificationUserInfo in these methods so there's no stale state. Then, if didReceiveRemoteNotification:inactive is called we know we're opening from a push so we set self.notificationUserInfo which is then picked up by applicationDidBecomeActive to forward the user to the right view.

There is one final case which is if the user has the app open within the app switcher (i.e. by double tapping the home button while the app is in the foreground) and then receives a push notification. In this case only didReceiveRemoteNotification:inactive is called, and neither WillEnterForeground nor didFinishLaunching gets called so you need some special state to handle that case.

Hope this helps.

What is Looper?

FROM DOCS

Looper

Looper Class used to run a message loop for a thread. Threads by default do not have a message loop associated with them; to create one, call prepare() in the thread that is to run the loop, and then loop() to have it process messages until the loop is stopped.

• A Looper is a message handling loop:
• An important character of Looper is that it's associated with the thread within which the Looper is created
• The Looper class maintains a MessageQueue, which contains a list messages. An important character of Looper is that it's associated with the thread within which the Looper is created.
• The Looper is named so because it implements the loop – takes the next task, executes it, then takes the next one and so on. The Handler is called a handler because someone could not invent a better name
• Android Looper is a Java class within the Android user interface that together with the Handler class to process UI events such as button clicks, screen redraws and orientation switches.

How it works?

Creating Looper

A thread gets a Looper and MessageQueue by calling Looper.prepare() after its running. Looper.prepare() identifies the calling thread, creates a Looper and MessageQueue object and associate the thread

SAMPLE CODE

class MyLooperThread extends Thread {

      public Handler mHandler; 

      public void run() { 

          // preparing a looper on current thread  
          Looper.prepare();

          mHandler = new Handler() { 
              public void handleMessage(Message msg) { 
                 // process incoming messages here
                 // this will run in non-ui/background thread
              } 
          }; 

          Looper.loop();
      } 
  }

For more information check below post

• What is the relationship between Looper, Handler and MessageQueue in Android?
• Android Guts: Intro to Loopers and Handlers
• Understanding Android Core: Looper, Handler, and HandlerThread
• Handler in Android
• What Is Android Looper?
• Android: Looper, Handler, HandlerThread. Part I.
• MessageQueue and Looper in Android

I also wrote a C#/VB.Net "Export to Excel" library, which uses OpenXML and (more importantly) also uses OpenXmlWriter, so you won't run out of memory when writing large files.

Full source code, and a demo, can be downloaded here:

Export to Excel

It's dead easy to use. Just pass it the filename you want to write to, and a DataTable, DataSet or List<>.

CreateExcelFile.CreateExcelDocument(myDataSet, "MyFilename.xlsx");

And if you're calling it from an ASP.Net application, pass it the HttpResponse to write the file out to.

CreateExcelFile.CreateExcelDocument(myDataSet, "MyFilename.xlsx", Response);

On your device:

Go to settings/ developer settings/ allow USB debug mode

If 'allow USB debug mode' option is disabled. Then you might have the device currently connected to your PC. Disconnect the device and the option should now be available

Note: On Android 4.2 and newer, Developer options is hidden by default. To make it available, go to Settings > About phone and tap Build number seven times. Return to the previous screen to find Developer options.

If it still doesn't help, you can google it with this expression:

How to enable developer options on YOUR_PHONE_TYPE

setBackgroundColor(Color.TRANSPARENT);

The simplest way

Here is another solution:

$env:HostIP = (
    Get-NetIPConfiguration |
    Where-Object {
        $_.IPv4DefaultGateway -ne $null -and
        $_.NetAdapter.Status -ne "Disconnected"
    }
).IPv4Address.IPAddress

You can't.

One workaround is to create clone environment, and then remove original one:

(remember about deactivating current environment with deactivate on Windows and source deactivate on macOS/Linux)

conda create --name new_name --clone old_name
conda remove --name old_name --all # or its alias: `conda env remove --name old_name`

There are several drawbacks of this method:

1. it redownloads packages - you can use --offline flag to disable it,
2. time consumed on copying environment's files,
3. temporary double disk usage.

There is an open issue requesting this feature.

The error message explains it pretty well:

ValueError: The truth value of an array with more than one element is ambiguous. 
Use a.any() or a.all()

What should bool(np.array([False, False, True])) return? You can make several plausible arguments:

(1) True, because bool(np.array(x)) should return the same as bool(list(x)), and non-empty lists are truelike;

(2) True, because at least one element is True;

(3) False, because not all elements are True;

and that's not even considering the complexity of the N-d case.

So, since "the truth value of an array with more than one element is ambiguous", you should use .any() or .all(), for example:

>>> v = np.array([1,2,3]) == np.array([1,2,4])
>>> v
array([ True,  True, False], dtype=bool)
>>> v.any()
True
>>> v.all()
False

and you might want to consider np.allclose if you're comparing arrays of floats:

>>> np.allclose(np.array([1,2,3+1e-8]), np.array([1,2,3]))
True

It all depends in what you understand as phone number. Phone numbers are country specific. The localflavors packages for several countries contains their own "phone number field". So if you are ok being country specific you should take a look at localflavor package (class us.models.PhoneNumberField for US case, etc.)

Otherwise you could inspect the localflavors to get the maximun lenght for all countries. Localflavor also has forms fields you could use in conjunction with the country code to validate the phone number.

If you would like to purposely link your project A in Release against another project B in Debug, say to keep the overall performance benefits of your application while debugging, then you will likely hit this error. You can fix this by temporarily modifying the preprocessor flags of project B to disable iterator debugging (and make it match project A):

In Project B's "Debug" properties, Configuration Properties -> C/C++ -> Preprocessor, add the following to Preprocessor Definitions:

_HAS_ITERATOR_DEBUGGING=0;_ITERATOR_DEBUG_LEVEL=0;

Rebuild project B in Debug, then build project A in Release and it should link correctly.

Infinite rotation animation in CSS

/* ENDLESS ROTATE */_x000D_
.rotate{_x000D_
  animation: rotate 1.5s linear infinite; _x000D_
}_x000D_
@keyframes rotate{_x000D_
  to{ transform: rotate(360deg); }_x000D_
}_x000D_
_x000D_
_x000D_
/* SPINNER JUST FOR DEMO */_x000D_
.spinner{_x000D_
  display:inline-block; width: 50px; height: 50px;_x000D_
  border-radius: 50%;_x000D_
  box-shadow: inset -2px 0 0 2px #0bf;_x000D_
}

<span class="spinner rotate"></span>

MDN - Web CSS Animation

He who is Shy^* gave you the germ of an answer, but only the germ. The basic technique for converting a value into a string in the C pre-processor is indeed via the '#' operator, but a simple transliteration of the proposed solution gets a compilation error:

#define TEST_FUNC test_func
#define TEST_FUNC_NAME #TEST_FUNC

#include <stdio.h>
int main(void)
{
    puts(TEST_FUNC_NAME);
    return(0);
}

The syntax error is on the 'puts()' line - the problem is a 'stray #' in the source.

In section 6.10.3.2 of the C standard, 'The # operator', it says:

Each # preprocessing token in the replacement list for a function-like macro shall be followed by a parameter as the next preprocessing token in the replacement list.

The trouble is that you can convert macro arguments to strings -- but you can't convert random items that are not macro arguments.

So, to achieve the effect you are after, you most certainly have to do some extra work.

#define FUNCTION_NAME(name) #name
#define TEST_FUNC_NAME  FUNCTION_NAME(test_func)

#include <stdio.h>

int main(void)
{
    puts(TEST_FUNC_NAME);
    return(0);
}

I'm not completely clear on how you plan to use the macros, and how you plan to avoid repetition altogether. This slightly more elaborate example might be more informative. The use of a macro equivalent to STR_VALUE is an idiom that is necessary to get the desired result.

#define STR_VALUE(arg)      #arg
#define FUNCTION_NAME(name) STR_VALUE(name)

#define TEST_FUNC      test_func
#define TEST_FUNC_NAME FUNCTION_NAME(TEST_FUNC)

#include <stdio.h>

static void TEST_FUNC(void)
{
    printf("In function %s\n", TEST_FUNC_NAME);
}

int main(void)
{
    puts(TEST_FUNC_NAME);
    TEST_FUNC();
    return(0);
}

^{* At the time when this answer was first written, shoosh's name used 'Shy' as part of the name.}

One approach is to combine the search strings into a regex pattern as in this answer.

Unfortunately, "shallow copy", "deep copy" and "clone" are all rather ill-defined terms.

In the Java context, we first need to make a distinction between "copying a value" and "copying an object".

int a = 1;
int b = a;     // copying a value
int[] s = new int[]{42};
int[] t = s;   // copying a value (the object reference for the array above)

StringBuffer sb = new StringBuffer("Hi mom");
               // copying an object.
StringBuffer sb2 = new StringBuffer(sb);

In short, an assignment of a reference to a variable whose type is a reference type is "copying a value" where the value is the object reference. To copy an object, something needs to use new, either explicitly or under the hood.

Now for "shallow" versus "deep" copying of objects. Shallow copying generally means copying only one level of an object, while deep copying generally means copying more than one level. The problem is in deciding what we mean by a level. Consider this:

public class Example {
    public int foo;
    public int[] bar;
    public Example() { };
    public Example(int foo, int[] bar) { this.foo = foo; this.bar = bar; };
}

Example eg1 = new Example(1, new int[]{1, 2});
Example eg2 = ... 

The normal interpretation is that a "shallow" copy of eg1 would be a new Example object whose foo equals 1 and whose bar field refers to the same array as in the original; e.g.

Example eg2 = new Example(eg1.foo, eg1.bar);

The normal interpretation of a "deep" copy of eg1 would be a new Example object whose foo equals 1 and whose bar field refers to a copy of the original array; e.g.

Example eg2 = new Example(eg1.foo, Arrays.copy(eg1.bar));

(People coming from a C / C++ background might say that a reference assignment produces a shallow copy. However, that's not what we normally mean by shallow copying in the Java context ...)

Two more questions / areas of uncertainty exist:

• How deep is deep? Does it stop at two levels? Three levels? Does it mean the whole graph of connected objects?

• What about encapsulated data types; e.g. a String? A String is actually not just one object. In fact, it is an "object" with some scalar fields, and a reference to an array of characters. However, the array of characters is completely hidden by the API. So, when we talk about copying a String, does it make sense to call it a "shallow" copy or a "deep" copy? Or should we just call it a copy?

Finally, clone. Clone is a method that exists on all classes (and arrays) that is generally thought to produce a copy of the target object. However:

• The specification of this method deliberately does not say whether this is a shallow or deep copy (assuming that is a meaningful distinction).

• In fact, the specification does not even specifically state that clone produces a new object.

Here's what the javadoc says:

"Creates and returns a copy of this object. The precise meaning of "copy" may depend on the class of the object. The general intent is that, for any object x, the expression x.clone() != x will be true, and that the expression x.clone().getClass() == x.getClass() will be true, but these are not absolute requirements. While it is typically the case that x.clone().equals(x) will be true, this is not an absolute requirement."

Note, that this is saying that at one extreme the clone might be the target object, and at the other extreme the clone might not equal the original. And this assumes that clone is even supported.

In short, clone potentially means something different for every Java class.

Some people argue (as @supercat does in comments) that the Java clone() method is broken. But I think the correct conclusion is that the concept of clone is broken in the context of OO. AFAIK, it is impossible to develop a unified model of cloning that is consistent and usable across all object types.

Criteria is an object-oriented API, while HQL means string concatenation. That means all of the benefits of object-orientedness apply:

1. All else being equal, the OO version is somewhat less prone to error. Any old string could get appended into the HQL query, whereas only valid Criteria objects can make it into a Criteria tree. Effectively, the Criteria classes are more constrained.
2. With auto-complete, the OO is more discoverable (and thus easier to use, for me at least). You don't necessarily need to remember which parts of the query go where; the IDE can help you
3. You also don't need to remember the particulars of the syntax (like which symbols go where). All you need to know is how to call methods and create objects.

Since HQL is very much like SQL (which most devs know very well already) then these "don't have to remember" arguments don't carry as much weight. If HQL was more different, then this would be more importatnt.

In my case it seems the problem was a weird caching problem. The solutions above didn't work.

If your code was working fine and you added a column to one of your tables and it gives the 'invalid column name' error, and the solutions above doesn't work, try this: First run only the section of code for creating that modified table and then run the whole code.

I'm using Linux Mint 18.2 of this writing. I had a similar issue; when trying to load myphpadmin, it said: "1045 - Access denied for user 'root'@'localhost' (using password: NO)"

I found the file in the /opt/lampp/phpmyadmin directory. I opened the config.inc.php file with my text editor and typed in the correct password. Saved it, and launched it successfully. Profit!

I was having problems with modifying folders and files, I had to change permission to access all my files in /opt/lampp/ directory. I hope this helps someone in the future.

set the below property:

"npm config set strict-ssl false"

if you are looking for a boolean, the quickest way would be

var values = [_x000D_
    { name: 'someName1' },_x000D_
    { name: 'someName2' },_x000D_
    { name: 'someName1' },_x000D_
    { name: 'someName1' }_x000D_
]_x000D_
_x000D_
// solution_x000D_
var hasDuplicate = false;_x000D_
values.map(v => v.name).sort().sort((a, b) => {_x000D_
  if (a === b) hasDuplicate = true_x000D_
})_x000D_
console.log('hasDuplicate', hasDuplicate)

Create a symlink at /usr/bin named 'ruby' and point it to the latest installed ruby.

You can use something like ln -s /usr/bin/ruby /to/the/installed/ruby/binary

Hope this helps.

Premise

The following code should be considered bad form, regardless of language or desired functionality:

while( true ) {
}

Supporting Arguments

The while( true ) loop is poor form because it:

• Breaks the implied contract of a while loop.
  • The while loop declaration should explicitly state the only exit condition.
• Implies that it loops forever.
  • Code within the loop must be read to understand the terminating clause.
  • Loops that repeat forever prevent the user from terminating the program from within the program.
• Is inefficient.
  • There are multiple loop termination conditions, including checking for "true".
• Is prone to bugs.
  • Cannot easily determine where to put code that will always execute for each iteration.
• Leads to unnecessarily complex code.
• Automatic source code analysis.
  • To find bugs, program complexity analysis, security checks, or automatically derive any other source code behaviour without code execution, specifying the initial breaking condition(s) allows algorithms to determine useful invariants, thereby improving automatic source code analysis metrics.
• Infinite loops.
  • If everyone always uses while(true) for loops that are not infinite, we lose the ability to concisely communicate when loops actually have no terminating condition. (Arguably, this has already happened, so the point is moot.)

Alternative to "Go To"

The following code is better form:

while( isValidState() ) {
  execute();
}

bool isValidState() {
  return msg->state != DONE;
}

Advantages

No flag. No goto. No exception. Easy to change. Easy to read. Easy to fix. Additionally the code:

1. Isolates the knowledge of the loop's workload from the loop itself.
2. Allows someone maintaining the code to easily extend the functionality.
3. Allows multiple terminating conditions to be assigned in one place.
4. Separates the terminating clause from the code to execute.
5. Is safer for Nuclear Power plants. ;-)

The second point is important. Without knowing how the code works, if someone asked me to make the main loop let other threads (or processes) have some CPU time, two solutions come to mind:

Option #1

Readily insert the pause:

while( isValidState() ) {
  execute();
  sleep();
}

Option #2

Override execute:

void execute() {
  super->execute();
  sleep();
}

This code is simpler (thus easier to read) than a loop with an embedded switch. The isValidState method should only determine if the loop should continue. The workhorse of the method should be abstracted into the execute method, which allows subclasses to override the default behaviour (a difficult task using an embedded switch and goto).

Python Example

Contrast the following answer (to a Python question) that was posted on StackOverflow:

1. Loop forever.
2. Ask the user to input their choice.
3. If the user's input is 'restart', continue looping forever.
4. Otherwise, stop looping forever.
5. End.

while True: 
    choice = raw_input('What do you want? ')

    if choice == 'restart':
        continue
    else:
        break

print 'Break!' 

Versus:

1. Initialize the user's choice.
2. Loop while the user's choice is the word 'restart'.
3. Ask the user to input their choice.
4. End.

choice = 'restart';

while choice == 'restart': 
    choice = raw_input('What do you want? ')

print 'Break!'

Here, while True results in misleading and overly complex code.

Because it came up in chat here , and the first page for googeling was this one, i decided to let all in on my findings googling some more XD

you really dont need to go any length anymore to make it work simply stand on the shoulders of giants:

there is a standard

https://dvcs.w3.org/hg/speech-api/raw-file/tip/webspeechapi.html

and an example

http://html5-examples.craic.com/google_chrome_text_to_speech.html

at least for your web projects this should work (e.g. asp.net)

First off, EC2 and Elastic Compute Cloud are the same thing.

Next, AWS encompasses the range of Web Services that includes EC2 and Elastic Beanstalk. It also includes many others such as S3, RDS, DynamoDB, and all the others.

EC2

EC2 is Amazon's service that allows you to create a server (AWS calls these instances) in the AWS cloud. You pay by the hour and only what you use. You can do whatever you want with this instance as well as launch n number of instances.

Elastic Beanstalk

Elastic Beanstalk is one layer of abstraction away from the EC2 layer. Elastic Beanstalk will setup an "environment" for you that can contain a number of EC2 instances, an optional database, as well as a few other AWS components such as a Elastic Load Balancer, Auto-Scaling Group, Security Group. Then Elastic Beanstalk will manage these items for you whenever you want to update your software running in AWS. Elastic Beanstalk doesn't add any cost on top of these resources that it creates for you. If you have 10 hours of EC2 usage, then all you pay is 10 compute hours.

Running Wordpress

For running Wordpress, it is whatever you are most comfortable with. You could run it straight on a single EC2 instance, you could use a solution from the AWS Marketplace, or you could use Elastic Beanstalk.

What to pick?

In the case that you want to reduce system operations and just focus on the website, then Elastic Beanstalk would be the best choice for that. Elastic Beanstalk supports a PHP stack (as well as others). You can keep your site in version control and easily deploy to your environment whenever you make changes. It will also setup an Autoscaling group which can spawn up more EC2 instances if traffic is growing.

Here's the first result off of Google when searching for "elastic beanstalk wordpress": https://www.otreva.com/blog/deploying-wordpress-amazon-web-services-aws-ec2-rds-via-elasticbeanstalk/

You can just:

var f = new Date(from.split('-').reverse().join('/'));

The main issue with 301 is browser will cache the redirection even if you disabled the redirection from the server level.

Its always better to use 302 if you are enabling the redirection for a short maintenance window.

In certain cases, it might be necessary to restrict the display of a webpage to a document mode supported by an earlier version of Internet Explorer. You can do this by serving the page with an x-ua-compatible header. For more info, see Specifying legacy document modes.
- https://msdn.microsoft.com/library/cc288325

Thus this tag is used to future proof the webpage, such that the older / compatible engine is used to render it the same way as intended by the creator.

Make sure that you have checked it to work properly with the IE version you specify.

I like List comprehensions because of their Math (Set) syntax. So how about this:

L = [1, 2, 3, 4, 5, 6, 7]
odd_numbers = [y for x,y in enumerate(L) if x%2 != 0]
even_numbers = [y for x,y in enumerate(L) if x%2 == 0]

Basically, if you enumerate over a list, you'll get the index x and the value y. What I'm doing here is putting the value y into the output list (even or odd) and using the index x to find out if that point is odd (x%2 != 0).

In this example we are creating a function to bring a comma delineated list of distinct line level AP invoice hold reasons into one field for header level query:

 FUNCTION getHoldReasonsByInvoiceId (p_InvoiceId IN NUMBER) RETURN VARCHAR2

  IS

  v_HoldReasons   VARCHAR2 (1000);

  v_Count         NUMBER := 0;

  CURSOR v_HoldsCusror (p2_InvoiceId IN NUMBER)
   IS
     SELECT DISTINCT hold_reason
       FROM ap.AP_HOLDS_ALL APH
      WHERE status_flag NOT IN ('R') AND invoice_id = p2_InvoiceId;
BEGIN

  v_HoldReasons := ' ';

  FOR rHR IN v_HoldsCusror (p_InvoiceId)
  LOOP
     v_Count := v_COunt + 1;

     IF (v_Count = 1)
     THEN
        v_HoldReasons := rHR.hold_reason;
     ELSE
        v_HoldReasons := v_HoldReasons || ', ' || rHR.hold_reason;
     END IF;
  END LOOP;

  RETURN v_HoldReasons;
END; 

I had the same error because I didn't issued a Let's Encrypt cert for the www.my-domain.com, only for my-domain.com

Issuing also for the www. and configuring the vhost to load certificates for www.my-domain.com before redirecting to https://my-domain.com did the trick.

This plagued me for over an hour.

If you're using the dataSrc option and column defs option, make sure they are in the correct locations. I had nested column defs in the ajax settings and lost way too much time figuring that out.

This is good:

This is not good:

Subtle difference, but real enough to cause hair loss.

This is a way to invoke one or more JavaScript methods from the code behind. By using Script Manager we can call the methods in sequence. Consider the below code for example.

ScriptManager.RegisterStartupScript(this, typeof(Page), "UpdateMsg", 
    "$(document).ready(function(){EnableControls();
    alert('Overrides successfully Updated.');
    DisableControls();});", 
true);

In this first method EnableControls() is invoked. Next the alert will be displayed. Next the DisableControls() method will be invoked.

This command will show all the ports and their destination address:

netstat -f 

My general answer to this kind of question on "efficiency" is almost always, which ever version of the code is most readable, is the most efficient.

That being said, I think (val.ToLowerCase() == "astringvalue") is pretty understandable at a glance by most people.

The efficience I refer to is not necesseraly in the execution of the code but rather in the maintanance and generally readability of the code in question.

>>> A = np.random.randint(5, size=(10,3))
>>> A
array([[1, 3, 0],
       [3, 2, 0],
       [0, 2, 1],
       [1, 1, 4],
       [3, 2, 2],
       [0, 1, 0],
       [1, 3, 1],
       [0, 4, 1],
       [2, 4, 2],
       [3, 3, 1]])
>>> idx = np.random.randint(10, size=2)
>>> idx
array([7, 6])
>>> A[idx,:]
array([[0, 4, 1],
       [1, 3, 1]])

Putting it together for a general case:

A[np.random.randint(A.shape[0], size=2), :]

For non replacement (numpy 1.7.0+):

A[np.random.choice(A.shape[0], 2, replace=False), :]

I do not believe there is a good way to generate random list without replacement before 1.7. Perhaps you can setup a small definition that ensures the two values are not the same.

I think this can not be perfectly done for the time being. There are 2 basic problems:

1. How can you make sure the sms is already in the inbox when you try to delete it?
   Notice that SMS_RECEIVED is not an ordered broadcast.
   So dmyung's solution is completely trying one's luck; even the delay in Doug's answer is not a guarantee.

2. The SmsProvider is not thread safe.(refer to http://code.google.com/p/android/issues/detail?id=2916#c0)
   The fact that more than one clients are requesting delete and insert in it at the same time will cause data corruption or even immediate Runtime Exception.

Apply these changes in phpmyconfig/config.inc. Type in your username and password that you have set:

$cfg['Servers'][$i]['user']                 = 'user';
$cfg['Servers'][$i]['password']             = 'password';
$cfg['Servers'][$i]['AllowNoPassword']      = false;

This works for me.

I had this problem earlier and this was my solution.

With Worksheets("Sheet1").Columns(5)
    .NumberFormat = "0"
    .Value = .Value
End With

Solution for iOS10. Works fine.

NSURL *URL = [NSURL URLWithString:@"App-prefs:root=TWITTER"];
[[UIApplication sharedApplication] openURL:URL options:@{} completionHandler:nil];

Their feature sets are not at all the same. Sqlite is an embedded database which has no network capabilities (unless you add them). So you can't use it on a network.

If you need

• Network access - for example accessing from another machine;
• Any real degree of concurrency - for example, if you think you are likely to want to run several queries at once, or run a workload that has lots of selects and a few updates, and want them to go smoothly etc.
• a lot of memory usage, for example, to buffer parts of your 1Tb database in your 32G of memory.

You need to use mysql or some other server-based RDBMS.

Note that MySQL is not the only choice and there are plenty of others which might be better for new applications (for example pgSQL).

Sqlite is a very, very nice piece of software, but it has never made claims to do any of these things that RDBMS servers do. It's a small library which runs SQL on local files (using locking to ensure that multiple processes don't screw the file up). It's really well tested and I like it a lot.

Also, if you aren't able to choose this correctly by yourself, you probably need to hire someone on your team who can.

Most of the people already gave the answer but this one is just for making someone's life easier.

TL;DR

You must add the test folder as source.

1. Right click on java directory under test
2. Mark it as Tests
3. Add src/test/java in Test Source Folders

Thats it, IntelliJ will consider them as test source.

Ubuntu/Debian distros have the start-stop-daemon tool which is for the same purpose you describe. See also /etc/init.d/skeleton to see how it is used in writing start/stop scripts.

-- Noah

For Sybase the following works (with http://python-sybase.sourceforge.net)

import pandas.io.sql as psql
import Sybase

df = psql.frame_query("<Query>", con=Sybase.connect("<dsn>", "<user>", "<pwd>"))

When you say [:-1] you are stripping the last element. Instead of slicing the string, you can apply startswith and endswith on the string object itself like this

if str1.startswith('"') and str1.endswith('"'):

So the whole program becomes like this

>>> str1 = '"xxx"'
>>> if str1.startswith('"') and str1.endswith('"'):
...     print "hi"
>>> else:
...     print "condition fails"
...
hi

Even simpler, with a conditional expression, like this

>>> print("hi" if str1.startswith('"') and str1.endswith('"') else "fails")
hi

If you choose to use a generic collection, such as List<MyObject> instead of ArrayList, you'll find that the List<MyObject> will provide both generic and non-generic enumerators that you can use.

using System.Collections;

class MyObjects : IEnumerable<MyObject>
{
    List<MyObject> mylist = new List<MyObject>();

    public MyObject this[int index]  
    {  
        get { return mylist[index]; }  
        set { mylist.Insert(index, value); }  
    } 

    public IEnumerator<MyObject> GetEnumerator()
    {
        return mylist.GetEnumerator();
    }

    IEnumerator IEnumerable.GetEnumerator()
    {
        return this.GetEnumerator();
    }
}

<div class="custom-control custom-switch">
      <input type="checkbox" class="custom-control-input" name="quiz_answer" id="customSwitch0">
      <label class="custom-control-label" for="customSwitch0"><span class="fa fa-minus fa-lg mt-1"></span></label>
  </div>

Remember to increment the the id and for attribute respectively. For Dynamically added bootstrap check box.

$(document).on('change', '.custom-switch', function(){
    let parent = $(this);
    parent.find('.custom-control-label > span').remove();
    let current_toggle = parent.find('.custom-control-input').attr('id');
    if($('#'+current_toggle+'').prop("checked") == true){
        parent.find('.custom-control-label').append('<span class="fa fa-check fa-lg mt-1"></span>');
    }
    else if($('#'+current_toggle+'').prop("checked") == false){
        parent.find('.custom-control-label').append('<span class="fa fa-minus fa-lg mt-1"></span>');
    }
})

To see the devices I was interested in, I had replace Win32_USBHub by Win32_PnPEntity in Adel Hazzah's code, based on this post. This works for me:

namespace ConsoleApplication1
{
  using System;
  using System.Collections.Generic;
  using System.Management; // need to add System.Management to your project references.

  class Program
  {
    static void Main(string[] args)
    {
      var usbDevices = GetUSBDevices();

      foreach (var usbDevice in usbDevices)
      {
        Console.WriteLine("Device ID: {0}, PNP Device ID: {1}, Description: {2}",
            usbDevice.DeviceID, usbDevice.PnpDeviceID, usbDevice.Description);
      }

      Console.Read();
    }

    static List<USBDeviceInfo> GetUSBDevices()
    {
      List<USBDeviceInfo> devices = new List<USBDeviceInfo>();

      ManagementObjectCollection collection;
      using (var searcher = new ManagementObjectSearcher(@"Select * From Win32_PnPEntity"))
        collection = searcher.Get();      

      foreach (var device in collection)
      {
        devices.Add(new USBDeviceInfo(
        (string)device.GetPropertyValue("DeviceID"),
        (string)device.GetPropertyValue("PNPDeviceID"),
        (string)device.GetPropertyValue("Description")
        ));
      }

      collection.Dispose();
      return devices;
    }
  }

  class USBDeviceInfo
  {
    public USBDeviceInfo(string deviceID, string pnpDeviceID, string description)
    {
      this.DeviceID = deviceID;
      this.PnpDeviceID = pnpDeviceID;
      this.Description = description;
    }
    public string DeviceID { get; private set; }
    public string PnpDeviceID { get; private set; }
    public string Description { get; private set; }
  }
}

Hope you realise, java.util.Enumeration is different from the Java 1.5 Enum types.

You can simply use YourEnum.valueOf("String") to get the equivalent enum type.

Thus if your enum is defined as so:

public enum Day {
    SUNDAY, MONDAY, TUESDAY, WEDNESDAY, 
    THURSDAY, FRIDAY, SATURDAY
}

You could do this:

String day = "SUNDAY";

Day dayEnum = Day.valueOf(day);

Make sure that you work with the correct separator. I replaced all / in a relative path with a File.separator. This worked fine in the IDE, however did not work in the build JAR.

This is my solution, HTML & CSS only for a back to top button, also my first post.

Fixed header of two lines at top of page, when scrolled 2nd line (with links) moves to top and is fixed. Links are Home, another page, Back, Top

 <h1 class="center italic fixedheader">
  Some Text <span class="small">- That describes your site or page</span>
  <br>
  <a href="index.htm">&#127968;&nbsp;Home</a> <a href=
  "gen.htm">&#128106;&nbsp;Gen</a> <a href="#"
      onclick="history.go(-1);return false;">&#128072;&nbsp;Back</a> <a href=
   enter code here   "#">&#128070;&nbsp;Top</a>
  </h1>

    <style>
    .fixedheader {
    margin: auto;
    overflow: hidden;
    background-color: inherit;
    position: sticky;
    top: -1.25em;
    width: 100%;
    border: .65em hidden inherit;
    /* white solid border hides any bleed through at top and lowers text */
    }
    </style>

demo - http://jsfiddle.net/victor_007/ywevz8ra/

added border for better view (testing)

more info about white-space

table{
    width:100%;
}
table td{
    white-space: nowrap;  /** added **/
}
table td:last-child{
    width:100%;
}

    table {_x000D_
      width: 100%;_x000D_
    }_x000D_
    table td {_x000D_
      white-space: nowrap;_x000D_
    }_x000D_
    table td:last-child {_x000D_
      width: 100%;_x000D_
    }

<table border="1">_x000D_
  <thead>_x000D_
    <tr>_x000D_
      <th>Column A</th>_x000D_
      <th>Column B</th>_x000D_
      <th>Column C</th>_x000D_
      <th class="absorbing-column">Column D</th>_x000D_
    </tr>_x000D_
  </thead>_x000D_
  <tbody>_x000D_
    <tr>_x000D_
      <td>Data A.1 lorem</td>_x000D_
      <td>Data B.1 ip</td>_x000D_
      <td>Data C.1 sum l</td>_x000D_
      <td>Data D.1</td>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>Data A.2 ipsum</td>_x000D_
      <td>Data B.2 lorem</td>_x000D_
      <td>Data C.2 some data</td>_x000D_
      <td>Data D.2 a long line of text that is long</td>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>Data A.3</td>_x000D_
      <td>Data B.3</td>_x000D_
      <td>Data C.3</td>_x000D_
      <td>Data D.3</td>_x000D_
    </tr>_x000D_
  </tbody>_x000D_
</table>

You can break nested for loops with the word 'break', it works without any labels.

In your case you need to have a condition which is sufficient to break a loop.

Here's an example:

var arr = [[1,3], [5,6], [9,10]];
for (var a = 0; a<arr.length; a++ ){
  for (var i=0; i<arr[a].length; i++) {
    console.log('I am a nested loop and i = ' + i);
    if (i==0) { break; }
  }
  console.log('first loop continues');
}

It logs the following:

> I am a nested loop and i = 0 
> first loop continues
> I am a nested loop and i = 0 
> first loop continues
> I am a nested loop and i = 0 
> first loop continues

The return; statement does not work in this case. Working pen

As while developing react native apps, we play with the terminal so much

so I added a script in the scripts in the package.json file

"menu": "adb shell input keyevent 82"

and I hit $ yarn menu

for the menu to appear on the emulator it will forward the keycode 82 to the emulator via ADB not the optimal way but I like it and felt to share it.

I would do it something like this as it gives you 3 even sized columns, even spacing and (even) scales. Note: This is not tested so it might need tweaking for older browsers.

<style>
html, body {
    margin: 0;
    padding: 0;
}

.content {
    float: left;
    width: 30%;
    border:none;
}

.rightcontent {
    float: right;
    width: 30%;
    border:none
}

.hspacer {
    width:5%;
    float:left;
}

.clear {
    clear:both;
}
</style>

<div class="content">content</div>
<div class="hspacer">&nbsp;</div>
<div class="content">content</div>
<div class="hspacer">&nbsp;</div>
<div class="rightcontent">content</div>
<div class="clear"></div>

Most replies here need to import numpy as np

There is a built-in solution into pandas itself: pd.NA, to use like this:

df.replace('N/A', pd.NA)

React is not passing you the kind of events you might think. Rather, it is passing synthetic events.

In a brief test, event.keyCode == 0 is always true. What you want is event.charCode

for simple Scroll, use following style

height: 200px; overflow: scroll;

and use this style class which div or section you want to show scroll

I believe you are looking for the setTimeout function.

To make your code a little neater, define a separate function for onclick in a <script> block:

function myClick() {
  setTimeout(
    function() {
      document.getElementById('div1').style.display='none';
      document.getElementById('div2').style.display='none';
    }, 5000);
}

then call your function from onclick

onclick="myClick();"

For me, just setting the compatibility level to higher level works fine. To see C.Level :

select compatibility_level from sys.databases where name = [your_database]

For Windows slave, please use Execute Windows batch command.
For Unix-like slave like linux or Mac, Execute shell is the option.

You can try: Using the --authenticationDatabase flag helps.

mongo --port 27017 -u "admin" -p "password" --authenticationDatabase "admin"

Delete android/app/build folder and run react-native run-android

I had to dig a little to find the source of the following Built-in Functions as the search would yield thousands of results. (Good luck searching for any of those to find where it's source is)

Anyway, all those functions are defined in bltinmodule.c Functions start with builtin_{functionname}

Built-in Source: https://github.com/python/cpython/blob/master/Python/bltinmodule.c

For Built-in Types: https://github.com/python/cpython/tree/master/Objects

I used the following property which works fine for me:

$('#selector').dialog({
     minHeight: 'auto'
});

I combined some of the answers above and created this crazy looking but functional script that lists hopefully most of the event listeners on the given element. Feel free to optimize it here.

var element = $("#some-element");_x000D_
_x000D_
// sample event handlers_x000D_
element.on("mouseover", function () {_x000D_
  alert("foo");_x000D_
});_x000D_
_x000D_
$(".parent-element").on("mousedown", "span", function () {_x000D_
  alert("bar");_x000D_
});_x000D_
_x000D_
$(document).on("click", "span", function () {_x000D_
  alert("xyz");_x000D_
});_x000D_
_x000D_
var collection = element.parents()_x000D_
  .add(element)_x000D_
  .add($(document));_x000D_
collection.each(function() {_x000D_
  var currentEl = $(this) ? $(this) : $(document);_x000D_
  var tagName = $(this)[0].tagName ? $(this)[0].tagName : "DOCUMENT";_x000D_
  var events = $._data($(this)[0], "events");_x000D_
  var isItself = $(this)[0] === element[0]_x000D_
  if (!events) return;_x000D_
  $.each(events, function(i, event) {_x000D_
    if (!event) return;_x000D_
    $.each(event, function(j, h) {_x000D_
      var found = false;        _x000D_
      if (h.selector && h.selector.length > 0) {_x000D_
        currentEl.find(h.selector).each(function () {_x000D_
          if ($(this)[0] === element[0]) {_x000D_
            found = true;_x000D_
          }_x000D_
        });_x000D_
      } else if (!h.selector && isItself) {_x000D_
        found = true;_x000D_
      }_x000D_
_x000D_
      if (found) {_x000D_
        console.log("################ " + tagName);_x000D_
        console.log("event: " + i);_x000D_
        console.log("selector: '" + h.selector + "'");_x000D_
        console.log(h.handler);_x000D_
      }_x000D_
    });_x000D_
  });_x000D_
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
_x000D_
<div class="parent-element">_x000D_
  <span id="some-element"></span>_x000D_
</div>

Nobody mentioned using reversed:

f=open(file,"r")
r=reversed(f.readlines())
last_line_of_file = r.next()

I'm using

/etc/bash_completion.d/git

It came with Git and provides a prompt with branch name and argument completion.

This actually works for me:

Per the README.SSO that comes with the jtdsd distribution:

In order for Single Sign On to work, jTDS must be able to load the native SPPI library ntlmauth.dll. Place this DLL anywhere in the system path (defined by the PATH system variable) and you're all set.

I placed it in my jre/bin folder

I configured a port dedicated the sql server instance (2302) to alleviate the need for an instance name - just something I do. lportal is my database name.

jdbc.default.url=jdbc:jtds:sqlserver://192.168.0.147:2302/lportal;useNTLMv2=true;domain=mydomain.local

WebSockets is definitely the future.

Long polling is a dirty workaround to prevent creating connections for each request like AJAX does -- but long polling was created when WebSockets didn't exist. Now due to WebSockets, long polling is going away.

WebRTC allows for peer-to-peer communication.

I recommend learning WebSockets.

Comparison:

of different communication techniques on the web

• AJAX - request → response. Creates a connection to the server, sends request headers with optional data, gets a response from the server, and closes the connection. Supported in all major browsers.

• Long poll - request → wait → response. Creates a connection to the server like AJAX does, but maintains a keep-alive connection open for some time (not long though). During connection, the open client can receive data from the server. The client has to reconnect periodically after the connection is closed, due to timeouts or data eof. On server side it is still treated like an HTTP request, same as AJAX, except the answer on request will happen now or some time in the future, defined by the application logic. support chart (full) | wikipedia

• WebSockets - client ↔ server. Create a TCP connection to the server, and keep it open as long as needed. The server or client can easily close the connection. The client goes through an HTTP compatible handshake process. If it succeeds, then the server and client can exchange data in both directions at any time. It is efficient if the application requires frequent data exchange in both ways. WebSockets do have data framing that includes masking for each message sent from client to server, so data is simply encrypted. support chart (very good) | wikipedia

• WebRTC - peer ↔ peer. Transport to establish communication between clients and is transport-agnostic, so it can use UDP, TCP or even more abstract layers. This is generally used for high volume data transfer, such as video/audio streaming, where reliability is secondary and a few frames or reduction in quality progression can be sacrificed in favour of response time and, at least, some data transfer. Both sides (peers) can push data to each other independently. While it can be used totally independent from any centralised servers, it still requires some way of exchanging endPoints data, where in most cases developers still use centralised servers to "link" peers. This is required only to exchange essential data for establishing a connection, after which a centralised server is not required. support chart (medium) | wikipedia

• Server-Sent Events - client ← server. Client establishes persistent and long-term connection to server. Only the server can send data to a client. If the client wants to send data to the server, it would require the use of another technology/protocol to do so. This protocol is HTTP compatible and simple to implement in most server-side platforms. This is a preferable protocol to be used instead of Long Polling. support chart (good, except IE) | wikipedia

Advantages:

The main advantage of WebSockets server-side, is that it is not an HTTP request (after handshake), but a proper message based communication protocol. This enables you to achieve huge performance and architecture advantages. For example, in node.js, you can share the same memory for different socket connections, so they can each access shared variables. Therefore, you don't need to use a database as an exchange point in the middle (like with AJAX or Long Polling with a language like PHP). You can store data in RAM, or even republish between sockets straight away.

Security considerations

People are often concerned about the security of WebSockets. The reality is that it makes little difference or even puts WebSockets as better option. First of all, with AJAX, there is a higher chance of MITM, as each request is a new TCP connection that is traversing through internet infrastructure. With WebSockets, once it's connected it is far more challenging to intercept in between, with additionally enforced frame masking when data is streamed from client to server as well as additional compression, which requires more effort to probe data. All modern protocols support both: HTTP and HTTPS (encrypted).

P.S.

Remember that WebSockets generally have a very different approach of logic for networking, more like real-time games had all this time, and not like http.

Swift 4:

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "ExampleSegueIdentifier" {
        if let destinationVC = segue.destination as? ExampleSegueVC {
            destinationVC.exampleString = "Example"
        }
    }
}

Swift 3:

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        if segue.identifier == "ExampleSegueIdentifier" {
            if let destinationVC = segue.destinationViewController as? ExampleSegueVC {
                destinationVC.exampleString = "Example"
            }
        }
    }

See the following snippet, is this what you want?

body {
    background: silver;
    padding: 0 10px;
}

#content:after {
    height: 10px;
    display: block;
    width: 100px;
    background: #808080;
    border-right: 1px white;
    content: '';
}

#footer:before {
    display: block;
    content: '';
    background: silver;
    height: 10px;
    margin-top: -20px;
    margin-left: 101px;
}

#content {
    background: white;
}


#footer {
    padding-top: 10px;
    background: #404040;
}

p {
    padding: 100px;
    text-align: center;
}

#footer p {
    color: white;
}

<body>
    <div id="content"><p>#content</p></div>
    <div id="footer"><p>#footer</p></div>
</body>

JSFiddle

While it seems like "never parse XML, JSON... from bash without a proper tool" is sound advice, I disagree. If this is side job, it is waistfull to look for the proper tool, then learn it... Awk can do it in minutes. My programs have to work on all above mentioned and more kinds of data. Hell, I do not want to test 30 tools to parse 5-7-10 different formats I need if I can awk the problem in minutes. I do not care about XML, JSON or whatever! I need a single solution for all of them.

As an example: my SmartHome program runs our homes. While doing it, it reads plethora of data in too many different formats I can not control. I never use dedicated, proper tools since I do not want to spend more than minutes on reading the data I need. With FS and RS adjustments, this awk solution works perfectly for any textual format. But, it may not be the proper answer when your primary task is to work primarily with loads of data in that format!

The problem of parsing XML from bash I faced yesterday. Here is how I do it for any hierarchical data format. As a bonus - I assign data directly to the variables in a bash script.

To make thins easier to read, I will present solution in stages. From the OP test data, I created a file: test.xml

Parsing said XML in bash and extracting the data in 90 chars:

awk 'BEGIN { FS="<|>"; RS="\n" }; /host|username|password|dbname/ { print $2, $4 }' test.xml

I normally use more readable version since it is easier to modify in real life as I often need to test differently:

awk 'BEGIN { FS="<|>"; RS="\n" }; { if ($0 ~ /host|username|password|dbname/) print $2,$4}' test.xml

I do not care how is the format called. I seek only the simplest solution. In this particular case, I can see from the data that newline is the record separator (RS) and <> delimit fields (FS). In my original case, I had complicated indexing of 6 values within two records, relating them, find when the data exists plus fields (records) may or may not exist. It took 4 lines of awk to solve the problem perfectly. So, adapt idea to each need before using it!

Second part simply looks it there is wanted string in a line (RS) and if so, prints out needed fields (FS). The above took me about 30 seconds to copy and adapt from the last command I used this way (4 times longer). And that is it! Done in 90 chars.

But, I always need to get the data neatly into variables in my script. I first test the constructs like so:

awk 'BEGIN { FS="<|>"; RS="\n" }; { if ($0 ~ /host|username|password|dbname/) print $2"=\""$4"\"" }' test.xml

In some cases I use printf instead of print. When I see everything looks well, I simply finish assigning values to variables. I know many think "eval" is "evil", no need to comment :) Trick works perfectly on all four of my networks for years. But keep learning if you do not understand why this may be bad practice! Including bash variable assignments and ample spacing, my solution needs 120 chars to do everything.

eval $( awk 'BEGIN { FS="<|>"; RS="\n" }; { if ($0 ~ /host|username|password|dbname/) print $2"=\""$4"\"" }' test.xml ); echo "host: $host, username: $username, password: $password dbname: $dbname"

There are many answers on this question already, but nothing fitted my needs. So i came up with my own solution, I hope it is usefull for someone:

function calledPrivate(){
    var stack = new Error().stack.toString().split("\n");
    function getClass(line){
        var i = line.indexOf(" ");
        var i2 = line.indexOf(".");
        return line.substring(i,i2);
    }
    return getClass(stack[2])==getClass(stack[3]);
}

class Obj{
    privateMethode(){
        if(calledPrivate()){
            console.log("your code goes here");
        }
    }
    publicMethode(){
        this.privateMethode();
    }
}

var obj = new Obj();
obj.publicMethode(); //logs "your code goes here"
obj.privateMethode(); //does nothing

As you can see this system works when using this type of classes in javascript. As far as I figured out none of the methods commented above did.

You can simply play a setted ringtone with this:

Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Ringtone r = RingtoneManager.getRingtone(getApplicationContext(), notification);
r.play();

I am using angular 5 and you can simply check the status property of your form using FormGroup e.g.

this.form = new FormGroup({
      firstName: new FormControl('', [Validators.required, validateName]),
      lastName: new FormControl('', [Validators.required, validateName]),
      email: new FormControl('', [Validators.required, validateEmail]),
      dob: new FormControl('', [Validators.required, validateDate])
    });

this.form.status would be "INVALID" unless all the fields pass all the validation rules.

The best part is that it detects changes in real-time.

.html

<form [formGroup]="contactForm">

<button [disabled]="contactForm.invalid"  (click)="onSubmit()">SEND</button>

.ts

contactForm: FormGroup;

import pyclbr
print(pyclbr.readmodule(__name__).keys())

Note that the stdlib's Python class browser module uses static source analysis, so it only works for modules that are backed by a real .py file.

Use greenlock-express: Free SSL, Automated HTTPS

Greenlock handles certificate issuance and renewal (via Let's Encrypt) and http => https redirection, out-of-the box.

express-app.js:

var express = require('express');
var app = express();

app.use('/', function (req, res) {
  res.send({ msg: "Hello, Encrypted World!" })
});

// DO NOT DO app.listen()
// Instead export your app:
module.exports = app;

server.js:

require('greenlock-express').create({
  // Let's Encrypt v2 is ACME draft 11
  version: 'draft-11'
, server: 'https://acme-v02.api.letsencrypt.org/directory'

  // You MUST change these to valid email and domains
, email: '[email protected]'
, approveDomains: [ 'example.com', 'www.example.com' ]
, agreeTos: true
, configDir: "/path/to/project/acme/"

, app: require('./express-app.j')

, communityMember: true // Get notified of important updates
, telemetry: true       // Contribute telemetry data to the project
}).listen(80, 443);

Screencast

Watch the QuickStart demonstration: https://youtu.be/e8vaR4CEZ5s

For Localhost

Just answering this ahead-of-time because it's a common follow-up question:

You can't have SSL certificates on localhost. However, you can use something like Telebit which will allow you to run local apps as real ones.

You can also use private domains with Greenlock via DNS-01 challenges, which is mentioned in the README along with various plugins which support it.

Non-standard Ports (i.e. no 80 / 443)

Read the note above about localhost - you can't use non-standard ports with Let's Encrypt either.

However, you can expose your internal non-standard ports as external standard ports via port-forward, sni-route, or use something like Telebit that does SNI-routing and port-forwarding / relaying for you.

You can also use DNS-01 challenges in which case you won't need to expose ports at all and you can also secure domains on private networks this way.

You can do it like this in Lodash 4.x

var data = [{_x000D_
  "name": "jim",_x000D_
  "color": "blue",_x000D_
  "age": "22"_x000D_
}, {_x000D_
  "name": "Sam",_x000D_
  "color": "blue",_x000D_
  "age": "33"_x000D_
}, {_x000D_
  "name": "eddie",_x000D_
  "color": "green",_x000D_
  "age": "77"_x000D_
}];_x000D_
_x000D_
console.log(_x000D_
  _.chain(data)_x000D_
    // Group the elements of Array based on `color` property_x000D_
    .groupBy("color")_x000D_
    // `key` is group's name (color), `value` is the array of objects_x000D_
    .map((value, key) => ({ color: key, users: value }))_x000D_
    .value()_x000D_
);

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>

Original Answer

var result = _.chain(data)
    .groupBy("color")
    .pairs()
    .map(function(currentItem) {
        return _.object(_.zip(["color", "users"], currentItem));
    })
    .value();
console.log(result);

Online Demo

Note: Lodash 4.0 onwards, the .pairs function has been renamed to _.toPairs()

You need to use ScriptManager.RegisterStartupScript for Ajax.

protected void ButtonPP_Click(object sender, EventArgs e) {     if (radioBtnACO.SelectedIndex < 0)     {         string csname1 = "PopupScript";          var cstext1 = new StringBuilder();         cstext1.Append("alert('Please Select Criteria!')");          ScriptManager.RegisterStartupScript(this, GetType(), csname1,             cstext1.ToString(), true);     } } 

you do not need a framework to achieve dependency injection. You can do this by core java concepts as well. http://en.wikipedia.org/wiki/Dependency_injection#Code_illustration_using_Java

You can only do this in Javascript/JQuery, you can do it with the following JQuery (assuming you've gave your select an id of multiselect):

$(function () {
    $("#multiSelect").css("height", parseInt($("#multiSelect option").length) * 20);
});

Demo: http://jsfiddle.net/AZEFU/

• The simplest approach is to find the minimum number in the file, and return 1 less than that. This uses O(1) storage, and O(n) time for a file of n numbers. However, it will fail if number range is limited, which could make min-1 not-a-number.

• The simple and straightforward method of using a bitmap has already been mentioned. That method uses O(n) time and storage.

• A 2-pass method with 2^16 counting-buckets has also been mentioned. It reads 2*n integers, so uses O(n) time and O(1) storage, but it cannot handle datasets with more than 2^16 numbers. However, it's easily extended to (eg) 2^60 64-bit integers by running 4 passes instead of 2, and easily adapted to using tiny memory by using only as many bins as fit in memory and increasing the number of passes correspondingly, in which case run time is no longer O(n) but instead is O(n*log n).

• The method of XOR'ing all the numbers together, mentioned so far by rfrankel and at length by ircmaxell answers the question asked in stackoverflow#35185, as ltn100 pointed out. It uses O(1) storage and O(n) run time. If for the moment we assume 32-bit integers, XOR has a 7% probability of producing a distinct number. Rationale: given ~ 4G distinct numbers XOR'd together, and ca. 300M not in file, the number of set bits in each bit position has equal chance of being odd or even. Thus, 2^32 numbers have equal likelihood of arising as the XOR result, of which 93% are already in file. Note that if the numbers in file aren't all distinct, the XOR method's probability of success rises.

The best way is to use different database groups. If you want to keep using the master database as usual ($this->db) just turn off persistent connexion configuration option to your secondary database(s). Only master database should work with persistent connexion :

Master database

$db['default']['hostname'] = "localhost";
$db['default']['username'] = "root";
$db['default']['password'] = "";
$db['default']['database'] = "database_name";
$db['default']['dbdriver'] = "mysql";
$db['default']['dbprefix'] = "";
$db['default']['pconnect'] = TRUE;
$db['default']['db_debug'] = FALSE;
$db['default']['cache_on'] = FALSE;
$db['default']['cachedir'] = "";
$db['default']['char_set'] = "utf8";
$db['default']['dbcollat'] = "utf8_general_ci";
$db['default']['swap_pre'] = "";
$db['default']['autoinit'] = TRUE;
$db['default']['stricton'] = FALSE;

Secondary database (notice pconnect is set to false)

$db['otherdb']['hostname'] = "localhost";
$db['otherdb']['username'] = "root";
$db['otherdb']['password'] = "";
$db['otherdb']['database'] = "other_database_name";
$db['otherdb']['dbdriver'] = "mysql";
$db['otherdb']['dbprefix'] = "";
$db['otherdb']['pconnect'] = FALSE;
$db['otherdb']['db_debug'] = FALSE;
$db['otherdb']['cache_on'] = FALSE;
$db['otherdb']['cachedir'] = "";
$db['otherdb']['char_set'] = "utf8";
$db['otherdb']['dbcollat'] = "utf8_general_ci";
$db['otherdb']['swap_pre'] = "";
$db['otherdb']['autoinit'] = TRUE;
$db['otherdb']['stricton'] = FALSE;

Then you can use secondary databases as database objects while using master database as usual :

// use master dataabse
$users = $this->db->get('users');

// connect to secondary database
$otherdb = $this->load->database('otherdb', TRUE);
$stuff = $otherdb->get('struff');
$otherdb->insert_batch('users', $users->result_array());

// keep using master database as usual, for example insert stuff from other database
$this->db->insert_batch('stuff', $stuff->result_array());

I had a similar issue and found that pandas.get_dummies() solved the problem. Specifically, it splits out columns of categorical data into sets of boolean columns, one new column for each unique value in each input column. In your case, you would replace train_x = test[cols] with:

train_x = pandas.get_dummies(test[cols])

This transforms the train_x Dataframe into the following form, which RandomForestClassifier can accept:

   C  A_Hello  A_Hola  B_Bueno  B_Hi
0  0        1       0        0     1
1  1        0       1        1     0

shareing for others:

read stream line by line,should be good for large files piped into stdin, my version:

var n=0;
function on_line(line,cb)
{
    ////one each line
    console.log(n++,"line ",line);
    return cb();
    ////end of one each line
}

var fs = require('fs');
var readStream = fs.createReadStream('all_titles.txt');
//var readStream = process.stdin;
readStream.pause();
readStream.setEncoding('utf8');

var buffer=[];
readStream.on('data', (chunk) => {
    const newlines=/[\r\n]+/;
    var lines=chunk.split(newlines)
    if(lines.length==1)
    {
        buffer.push(lines[0]);
        return;
    }   

    buffer.push(lines[0]);
    var str=buffer.join('');
    buffer.length=0;
    readStream.pause();

    on_line(str,()=>{
        var i=1,l=lines.length-1;
        i--;
        function while_next()
        {
            i++;
            if(i<l)
            {
                return on_line(lines[i],while_next);
            }
            else
            {
                buffer.push(lines.pop());
                lines.length=0;
                return readStream.resume();
            }
        }
        while_next();
    });
  }).on('end', ()=>{
      if(buffer.length)
          var str=buffer.join('');
          buffer.length=0;
        on_line(str,()=>{
            ////after end
            console.error('done')
            ////end after end
        });
  });
readStream.resume();

Read this:

http://www.quora.com/OAuth-2-0/How-does-OAuth-2-0-work

or an even simpler but quick explanation:

http://agileanswer.blogspot.se/2012/08/oauth-20-for-my-ninth-grader.html

The redirect URI is the callback entry point of the app. Think about how OAuth for Facebook works - after end user accepts permissions, "something" has to be called by Facebook to get back to the app, and that "something" is the redirect URI. Furthermore, the redirect URI should be different than the initial entry point of the app.

The other key point to this puzzle is that you could launch your app from a URL given to a webview. To do this, i simply followed the guide on here:

http://iosdevelopertips.com/cocoa/launching-your-own-application-via-a-custom-url-scheme.html

and

http://inchoo.net/mobile-development/iphone-development/launching-application-via-url-scheme/

note: on those last 2 links, "http://" works in opening mobile safari but "tel://" doesn't work in simulator

in the first app, I call

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"secondApp://"]];

In my second app, I register "secondApp" (and NOT "secondApp://") as the name of URL Scheme, with my company as the URL identifier.

I solved the same issue by following steps:

Check the angular version: Using command: ng version My angular version is: Angular CLI: 7.3.10

After that I have support version of ngx bootstrap from the link: https://www.npmjs.com/package/ngx-bootstrap

In package.json file update the version: "bootstrap": "^4.5.3", "@ng-bootstrap/ng-bootstrap": "^4.2.2",

Now after updating package.json, use the command npm update

After this use command ng serve and my error got resolved

Committing package-lock.json to the source code version control means that the project will use a specific version of dependencies that may or may not match those defined in package.json. while the dependency has a specific version without any Caret (^) and Tilde (~) as you can see, that's mean the dependency will not be updated to the most recent version. and npm install will pick up the same version as well as we need it for our current version of Angular.

Note : package-lock.json highly recommended to commit it IF I added any Caret (^) and Tilde (~) to the dependency to be updated during the CI.

I've been searching the internet for RNG for a while now. Everything I saw was either TOO complex or was just not what I was looking for. After reading a few articles I was able to come up with this simple code.

{
  Random rnd = new Random(DateTime.Now.Millisecond);
  int[] b = new int[10] { 5, 8, 1, 7, 3, 2, 9, 0, 4, 6 };
  textBox1.Text = Convert.ToString(b[rnd.Next(10)])
}

Simple explanation,

1. create a 1 dimensional integer array.
2. full up the array with unordered numbers.
3. use the rnd.Next to get the position of the number that will be picked.

This works well.

To obtain a random number less than 100 use

{
  Random rnd = new Random(DateTime.Now.Millisecond);
  int[] b = new int[10] { 5, 8, 1, 7, 3, 2, 9, 0, 4, 6 };
  int[] d = new int[10] { 9, 4, 7, 2, 8, 0, 5, 1, 3, 4 };
  textBox1.Text = Convert.ToString(b[rnd.Next(10)]) + Convert.ToString(d[rnd.Next(10)]);
}

and so on for 3, 4, 5, and 6 ... digit random numbers.

Hope this assists someone positively.