I wrote a tool called who_attach_shm.pl, it parses /proc/[pid]/maps to get the information. you can download it from github

sample output:

shm attach process list, group by shm key
##################################################################

0x2d5feab4:    /home/curu/mem_dumper /home/curu/playd
0x4e47fc6c:    /home/curu/playd
0x77da6cfe:    /home/curu/mem_dumper /home/curu/playd /home/curu/scand

##################################################################
process shm usage
##################################################################
/home/curu/mem_dumper [2]:    0x2d5feab4 0x77da6cfe
/home/curu/playd [3]:    0x2d5feab4 0x4e47fc6c 0x77da6cfe
/home/curu/scand [1]:    0x77da6cfe

There's not a good way to convert it to foreach, because mysql_fetch_array() just fetches the next result from $result_select. If you really wanted to foreach, you could do pull all the results into an array first, doing something like the following:

$result_list = array();
while($row = mysql_fetch_array($result_select)) {
   result_list[] = $row;
}

foreach($result_list as $row) {
   ...
}

But there's no good reason I can see to do that - and you still have to use the while loop, which is unavoidable due to how mysql_fetch_array() works. Why is it so important to use a foreach()?

EDIT: If this is just for learning purposes: you can't convert this to a foreach. You have to have a pre-existing array to use a foreach() instead of a while(), and mysql_fetch_array() fetches one result per call - there's no pre-existing array for foreach() to iterate through.

This worked for me:

#!/bin/bash

#Variables
FILELOCAL=/var/www/folder/$(date +'%Y%m%d_%H-%M-%S').csv    
SFTPHOSTNAME="myHost.com"
SFTPUSERNAME="myUser"
SFTPPASSWORD="myPass"
FOLDER="myFolderIfNeeded"
FILEREMOTE="fileNameRemote"

#SFTP CONNECTION
sshpass -p $SFTPPASSWORD sftp $SFTPUSERNAME@$SFTPHOSTNAME << !
    cd $FOLDER
    get $FILEREMOTE $FILELOCAL
    ls
   bye
!

Probably you have to install sshpass:

sudo apt-get install sshpass

use:

$scope.users.length;

Instead of:

$scope.users.lenght;

And next time "spell-check" your code.

As of Elasticsearch 7.7, you have to specify the content type also:

curl -s -H "Content-Type: application/json" -XPOST localhost:9200/_bulk --data-binary @<absolute path to JSON file>

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import javax.swing.JOptionPane;   


public class Connectdatabase {

        Connection con = null;

        public static Connection ConnecrDb(){

            try{
                //String dir = System.getProperty("user.dir");
                Class.forName("org.sqlite.JDBC");
                Connection con = DriverManager.getConnection("jdbc:sqlite:D:\\testdb.db");
                return con;
            }
            catch(ClassNotFoundException | SQLException e){
                JOptionPane.showMessageDialog(null,"Problem with connection of database");
                return null;
            }
        }

    }

I found this image most helpful for understanding frame, bounds, etc.

Also please note that frame.size != bounds.size when the image is rotated.

2019 answer

Here is the step by step guide:

1. Install the GitLens extension: GitLens

2. The GitLens icon will show up in nav bar. Click on it.

   

3. Click on compare

   

4. Select branches to compare

   

5. Now you can see the difference. You can select any file for which you want to see the diff for.

   

For the example case above, it is usually omitted, yes. However, either way is syntactically correct.

As mentioned above it wont work for primitive types where 0/NO could be a valid value. I am using this code.

NSUserDefaults *defaults= [NSUserDefaults standardUserDefaults];
if([[[defaults dictionaryRepresentation] allKeys] containsObject:@"mykey"]){

    NSLog(@"mykey found");
}

Your reference to "0x31 = 1" makes me think you're actually trying to convert ASCII values to strings - in which case you should be using something like Encoding.ASCII.GetString(Byte[])

Try the following, not sure which will work for all browsers or the browser you are working with, but it would be best to try all:

<textarea style="overflow:auto"></textarea>

Or

<textarea style="overflow:hidden"></textarea>

...As suggested above

You can also try adding this, I never used it before, just saw it posted on a site today:

<textarea style="resize:none"></textarea>

This last option would remove the ability to resize the textarea. You can find more information on the CSS resize property here

you never set d[a] to any value.

Because of this, d[a] evaluates to undefined, and you can't set properties on undefined.

If you add d[a] = {} right after d = {} things should work as expected.

Alternatively, you could use an object initializer:

d[a] = {
    greetings: b,
    data: c
};

Or you could set all the properties of d in an anonymous function instance:

d = new function () {
    this[a] = {
        greetings: b,
        data: c
    };
};

If you're in an environment that supports ES2015 features, you can use computed property names:

d = {
  [a]: {
    greetings: b,
    data: c
  }
};

You don't need jquery in order to do that.

var placeHolder="name";
var res=name.substr(name.indexOf(placeHolder) + placeHolder.length);

I personally think this is the prettiest version:

a = [2,3,4,5,6,7,8,9,0]
xyz = [0,12,4,6,242,7,9]
for x in filter(lambda w: w in a, xyz):
  print x

Edit

if you are very keen on avoiding to use lambda you can use partial function application and use the operator module (that provides functions of most operators).

https://docs.python.org/2/library/operator.html#module-operator

from operator import contains
from functools import partial
print(list(filter(partial(contains, a), xyz)))

You need to declare @font-face like this in your stylesheet

@font-face {
  font-family: 'Awesome-Font';
  font-style: normal;
  font-weight: 400;
  src: local('Awesome-Font'), local('Awesome-Font-Regular'), url(path/Awesome-Font.woff) format('woff');
}

Now if you want to apply this font to a paragraph simply use it like this..

p {
font-family: 'Awesome-Font', Arial;
}

More Reference

In your Case you can write the following jquery code:

$(document).ready(function(){

   $('.staff_on_site').click(function(){

     var rBtnVal = $(this).val();

     if(rBtnVal == "yes"){
         $("#no_of_staff").attr("readonly", false); 
     }
     else{ 
         $("#no_of_staff").attr("readonly", true); 
     }
   });
});

Here is the Fiddle: http://jsfiddle.net/P4QWx/3/

How about this, using a simple flag

function checkPalindrom(str){
   var flag = true;
   for( var i = 0; i <= str.length-1; i++){
    if( str[i] !== str[str.length - i-1]){
      flag = false;  
     }
    }
    if(flag == false){
      console.log('the word is not a palindrome!');   
    }
    else{
    console.log('the word is a palindrome!');
    }
}

checkPalindrom('abcdcba');

I did a small experiment of running a method "1,000,000,000 (one billion)" times with "Parallel.For" and one with "Task" objects.

I measured the processor time and found Parallel more efficient. Parallel.For divides your task in to small work items and executes them on all the cores parallely in a optimal way. While creating lot of task objects ( FYI TPL will use thread pooling internally) will move every execution on each task creating more stress in the box which is evident from the experiment below.

I have also created a small video which explains basic TPL and also demonstrated how Parallel.For utilizes your core more efficiently http://www.youtube.com/watch?v=No7QqSc5cl8 as compared to normal tasks and threads.

Experiment 1

Parallel.For(0, 1000000000, x => Method1());

Experiment 2

for (int i = 0; i < 1000000000; i++)
{
    Task o = new Task(Method1);
    o.Start();
}

If you decide to use Underscore.js you better do

var foo = { 'alpha' : 'puffin', 'beta' : 'beagle' };
var keys = [];
_.each( foo, function( val, key ) {
    keys.push(key);
});
console.log(keys);

I'm a few years late, but why not this?

[Tt][Ee][Ss][Tt]

The best way is to use IN statement :

DELETE from tablename WHERE id IN (1,2,3,...,254);

You can also use BETWEEN if you have consecutive IDs :

DELETE from tablename WHERE id BETWEEN 1 AND 254;

You can of course limit for some IDs using other WHERE clause :

DELETE from tablename WHERE id BETWEEN 1 AND 254 AND id<>10;

The correct syntax for adding column into table is:

ALTER TABLE table_name
  ADD column_name column-definition;

In your case it will be:

ALTER TABLE Employees
  ADD EmployeeID int NOT NULL IDENTITY (1, 1)

To add multiple columns use brackets:

ALTER TABLE table_name
  ADD (column_1 column-definition,
       column_2 column-definition,
       ...
       column_n column_definition);

COLUMN keyword in SQL SERVER is used only for altering:

ALTER TABLE table_name
  ALTER COLUMN column_name column_type;

One statement generic conversion of any integral type into the binary string representation using standard library:

#include <bitset>
MyIntegralType  num = 10;
print("%s\n",
    std::bitset<sizeof(num) * 8>(num).to_string().insert(0, "0b").c_str()
); // prints "0b1010\n"

Or just: std::cout << std::bitset<sizeof(num) * 8>(num);

Try using MySQLdb. MySQLdb only supports Python 2.

There is a how to page here: http://www.kitebird.com/articles/pydbapi.html

From the page:

# server_version.py - retrieve and display database server version

import MySQLdb

conn = MySQLdb.connect (host = "localhost",
                        user = "testuser",
                        passwd = "testpass",
                        db = "test")
cursor = conn.cursor ()
cursor.execute ("SELECT VERSION()")
row = cursor.fetchone ()
print "server version:", row[0]
cursor.close ()
conn.close ()

Using BeautifulSoup the easiest way with less code to just get the strings, without empty lines and crap.

tag = <Parent_Tag_that_contains_the_data>
soup = BeautifulSoup(tag, 'html.parser')

for i in soup.stripped_strings:
    print repr(i)

i think you are not pausing the program before it ended so the output you are putting after getting the inpus is not seeing on the screen right?

do:

getchar();

before the end of the program

Depending on your applications, it might be easier to limit the memory the language interpreter uses. For example with Java you can set the amount of RAM the JVM will be allocated.

Otherwise it is possible to set it once for each process with the windows API

SetProcessWorkingSetSize Function

if(Test-Path "C:\Program Files\Microsoft SQL Server\MSSQL11.SQLEXPRESS") { #Sql Server 2012
    Import-Module SqlPs -DisableNameChecking
    C: # Switch back from SqlServer
} else { #Sql Server 2008
    Add-PSSnapin SqlServerCmdletSnapin100 # here live Invoke-SqlCmd
}

Invoke-Sqlcmd -InputFile "MySqlScript.sql" -ServerInstance "Database name" -ErrorAction 'Stop' -Verbose -QueryTimeout 1800 # 30min

If you have objects, not structs (or strings), then you'll have to intersect their keys first, and then select objects by those keys:

var ids = list1.Select(x => x.Id).Intersect(list2.Select(x => x.Id));
var result = list1.Where(x => ids.Contains(x.Id));

Like JaredPar said you can refer to Josh Smith's article towards Automation. However if you look through comments to his article you will find more elegant way of raising events against WPF controls

someButton.RaiseEvent(new RoutedEventArgs(ButtonBase.ClickEvent));

I personally prefer the one above instead of automation peers.

Make sure to put:

imageView.translatesAutoresizingMaskIntoConstraints = false

Your image view will not show if you don't put that, don't ask me why.

So I assume your permissions table has a foreign key reference to admin_accounts table. If so because of referential integrity you will only be able to add permissions for account ids exsiting in the admin accounts table. Which also means that you wont be able to enter a user_account_id [assuming there are no duplicates!]

This is the solution for your problem:

//Fetch page URL by this

$url = $_SERVER['REQUEST_URI'];
echo "$url<br />";

//It will print
//fetch host by this

$host=$_SERVER['HTTP_HOST'];
echo "$host<br />";

//You can fetch the full URL by this

$fullurl = "http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
echo $fullurl;

See jsocket. Haven't used it myself. Been more than 3 years since last update (as of 26/6/2014).

* Uses flash :(

From the documentation:

<script type='text/javascript'>
    // Host we are connecting to
    var host = 'localhost'; 
    // Port we are connecting on
    var port = 3000;

    var socket = new jSocket();

    // When the socket is added the to document 
    socket.onReady = function(){
            socket.connect(host, port);             
    }

    // Connection attempt finished
    socket.onConnect = function(success, msg){
            if(success){
                    // Send something to the socket
                    socket.write('Hello world');            
            }else{
                    alert('Connection to the server could not be estabilished: ' + msg);            
            }       
    }
    socket.onData = function(data){
            alert('Received from socket: '+data);   
    }

    // Setup our socket in the div with the id="socket"
    socket.setup('mySocket');       
</script>

Use this code..

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.Base64;
import java.io.ByteArrayOutputStream;

public class ImageUtil 
{ 
    public static Bitmap convert(String base64Str) throws IllegalArgumentException 
    { 
        byte[] decodedBytes = Base64.decode( base64Str.substring(base64Str.indexOf(",") + 1), Base64.DEFAULT );
        return BitmapFactory.decodeByteArray(decodedBytes, 0, decodedBytes.length);
    } 

    public static String convert(Bitmap bitmap) 
    { 
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream);
        return Base64.encodeToString(outputStream.toByteArray(), Base64.DEFAULT);
    }
}

You can use this if you want to assign a background image on the backend:

divContent.Attributes.Add("style"," background-image:
url('images/icon_stock.gif');");

I had two problems with using Acrobat Reader for this task.

1. The command line API is not officially supported, so it could change or be removed without warning.
2. Send a print command to Reader loads up the GUI, with seemingly no way to prevent it. I needed the process to be transparent to the user.

I stumbled across this blog, that suggests using Foxit Reader. Foxit Reader is free, the API is almost identical to Acrobat Reader, but crucially is documented and does not load the GUI for print jobs.

A word of warning, don't just click through the install process without paying attention, it tries to install unrelated software as well. Why are software vendors still doing this???

This can happen if you call

 .SingleOrDefault() 

on an IEnumerable with 2 or more elements.

Found out what was wrong. I never installed the setuptools for python, so it was missing some vital files, like the egg ones.

If you find yourself having my issue above, download this file and then in powershell or command prompt, navigate to ez_setup’s directory and execute the command and this will run the file for you:

$ [sudo] python ez_setup.py

If you still need to install pip at this point, run:

$ [sudo] easy_install pip

easy_install was part of the setuptools, and therefore wouldn't work for installing pip.

Then, pip will successfully install django with the command:

$ [sudo] pip install django

Hope I saved someone the headache I gave myself!

~Zorpix

I will put here some real case examples and scenarios when to use one or another, it might be of help for somebody else:

HashMap

When you have to use cache in your application. Redis and membase are some type of extended HashMap. (Doesn't matter the order of the elements, you need quick ( O(1) ) read access (a value), using a key).

LinkedList

When the order is important (they are ordered as they were added to the LinkedList), the number of elements are unknown (don't waste memory allocation) and you require quick insertion time ( O(1) ). A list of to-do items that can be listed sequentially as they are added is a good example.

You simply pass the FormControl an array of validators.

Here's an example showing how you can add validators to an existing FormControl:

this.form.controls["firstName"].setValidators([Validators.minLength(1), Validators.maxLength(30)]);

Note, this will reset any existing validators you added when you created the FormControl.

First() is causing this if your select returns 0 rows. You either have to catch that exception, or use FirstOrDefault() which will return null in case of no elements.

You will get this error when you call any of the setXxx() methods on PreparedStatement, while the SQL query string does not have any placeholders ? for this.

For example this is wrong:

String sql = "INSERT INTO tablename (col1, col2, col3) VALUES (val1, val2, val3)";
// ...

preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, val1); // Fail.
preparedStatement.setString(2, val2);
preparedStatement.setString(3, val3);

You need to fix the SQL query string accordingly to specify the placeholders.

String sql = "INSERT INTO tablename (col1, col2, col3) VALUES (?, ?, ?)";
// ...

preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, val1);
preparedStatement.setString(2, val2);
preparedStatement.setString(3, val3);

Note the parameter index starts with 1 and that you do not need to quote those placeholders like so:

String sql = "INSERT INTO tablename (col1, col2, col3) VALUES ('?', '?', '?')";

Otherwise you will still get the same exception, because the SQL parser will then interpret them as the actual string values and thus can't find the placeholders anymore.

See also:

• JDBC tutorial - prepared statements

If what you're trying to do is allow users to bookmark/share pages, and you don't need it to be exactly the right URL, and you're not using hash anchors for anything else, then you can do this in two parts; you use the location.hash discussed above, and then implement a check on the home page, to look for a URL with a hash anchor in it, and redirect you to the subsequent result.

For instance:

1) User is on www.site.com/section/page/4

2) User does some action which changes the URL to www.site.com/#/section/page/6 (with the hash). Say you've loaded the correct content for page 6 into the page, so apart from the hash the user is not too disturbed.

3) User passes this URL on to someone else, or bookmarks it

4) Someone else, or the same user at a later date, goes to www.site.com/#/section/page/6

5) Code on www.site.com/ redirects the user to www.site.com/section/page/6, using something like this:

if (window.location.hash.length > 0){ 
   window.location = window.location.hash.substring(1);
}

Hope that makes sense! It's a useful approach for some situations.

Please stick to the semantics of protocol. Use 2xx for successful responses and 4xx , 5xx for error responses - be it your business exceptions or other. Had using 2xx for any response been the intended use case in the protocol, they would not have other status codes in the first place.

Using DataTable is valid as user927524 stated. You can also do it by adding rows manually, which will not require to add a specific wrapping class:

List<string> filenamesList = ...;
foreach(string filename in filenamesList)
      gvFilesOnServer.Rows.Add(new object[]{filename});

In any case, thanks user927524 for clearing this weird behavior!!

It is possible to use the semless attribute right now, here i found a german article http://www.solife.cc/blog/html5-iframe-attribut-seamless-beispiele.html

and here are another presentation about this topic: http://benvinegar.github.com/seamless-talk/

You have to use the window.postMessage method to communicate between the parent and the iframe.

This is indeed rather odd.

If aSourceDictionary were a dictionary, I don't believe it is possible for your code to fail in the manner you describe.

This leads to two hypotheses:

1. The code you're actually running is not identical to the code in your question (perhaps an earlier or later version?)

2. aSourceDictionary is in fact not a dictionary, but is some other structure (for example, a list).

Use acra crash reporter for android app..Acra lib

Example for String Methods

Given a list of filenames, we want to rename all the files with extension hpp to the extension h. To do this, we would like to generate a new list called newfilenames, consisting of the new filenames. Fill in the blanks in the code using any of the methods you’ve learned thus far, like a for loop or a list comprehension.

filenames = ["program.c", "stdio.hpp", "sample.hpp", "a.out", "math.hpp", "hpp.out"]
# Generate newfilenames as a list containing the new filenames
# using as many lines of code as your chosen method requires.
newfilenames = []
for i in filenames:
    if i.endswith(".hpp"):
        x = i.replace("hpp", "h")
        newfilenames.append(x)
    else:
        newfilenames.append(i)


print(newfilenames)
# Should be ["program.c", "stdio.h", "sample.h", "a.out", "math.h", "hpp.out"]

in ie8 you can try

-ms-filter: "progid:DXImageTransform.Microsoft.Shadow(Strength=5, Direction=135, Color='#c0c0c0')";
 filter: progid:DXImageTransform.Microsoft.Shadow(Strength=5, Direction=135, Color='#c0c0c0');

caveat: in ie8 you loose smooth fonts for some reason, they will look ragged

In the current version of Android Studio (v1.0.2) you can simply add a landscape layout by clicking on the button in the visual editor shown in the screenshot below. Select "Create Landscape Variation"

For simple integer arithmetic, you can also use the builtin let command.

 ONE=1
 TWO=2
 let "THREE = $ONE + $TWO"
 echo $THREE
    3

For more info on let, look here.

Liam's link looks great, but also check out pandas.Timedelta - looks like it plays nicely with NumPy's and Python's time deltas.

https://pandas.pydata.org/pandas-docs/stable/timedeltas.html

pd.date_range('2014-01-01', periods=10) + pd.Timedelta(days=1)

The accepted answer works but can got complicated when I wanted to try adding Accept headers. This is what I ended up with. It seems simpler to me so I think I'll stick with it in the future:

client.DefaultRequestHeaders.Add("Accept", "application/*+xml;version=5.1");
client.DefaultRequestHeaders.Add("Authorization", "Basic " + authstring);

I believe the part regarding how to span rows has been answered thoroughly (i.e. by nesting rows), but I also ran into the issue of my nested rows not filling their container. While flexbox and negative margins are an option, a much easier solution is to use the predefined h-50 class on the row containing boxes 2, 3, 4, and 5.

Note: I am using Bootstrap-4, I just wanted to share because I ran into the same problem and found this to be a more elegant solution :)

Sounds like you'd be better served by a singleton rather than a bunch of static methods

class Singleton
{
  /**
   * 
   * @var Singleton
   */
  private static $instance;

  private function __construct()
  {
    // Your "heavy" initialization stuff here
  }

  public static function getInstance()
  {
    if ( is_null( self::$instance ) )
    {
      self::$instance = new self();
    }
    return self::$instance;
  }

  public function someMethod1()
  {
    // whatever
  }

  public function someMethod2()
  {
    // whatever
  }
}

And then, in usage

// As opposed to this
Singleton::someMethod1();

// You'd do this
Singleton::getInstance()->someMethod1();

Alt+w-->or click on window tab -->ResetPerspective

Basically this is what you need to do:
in the first activity:

Intent intent = new Intent();
intent.setAction(this, SecondActivity.class);
intent.putExtra(tag, value);
startActivity(intent);

and in the second activtiy:

Intent intent = getIntent();
intent.getBooleanExtra(tag, defaultValue);
intent.getStringExtra(tag, defaultValue);
intent.getIntegerExtra(tag, defaultValue);

one of the get-functions will give return you the value, depending on the datatype you are passing through.

Your local JVM or remote server may not have the required ciphers. go here

https://www.oracle.com/java/technologies/javase-jce8-downloads.html

and download the zip file that contains: US_export_policy.jar and local_policy.jar

replace the existing files (you need to find the existing path in your JVM).

on a Mac, my path was here. /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/security

this worked for me.

Basically, it will make your code a lot easier to compile under other compilers which also implement the ANSI standard, and, if you are careful in which libraries/api calls you use, under other operating systems/platforms.

The first one, turns off SPECIFIC features of GCC. (-ansi) The second one, will complain about ANYTHING at all that does not adhere to the standard (not only specific features of GCC, but your constructs too.) (-pedantic).

Cross posting my reference from SO Documentation beta which is going offline.

Profiling with XDebug

An extension to PHP called Xdebug is available to assist in profiling PHP applications, as well as runtime debugging. When running the profiler, the output is written to a file in a binary format called "cachegrind". Applications are available on each platform to analyze these files. No application code changes are necessary to perform this profiling.

To enable profiling, install the extension and adjust php.ini settings. Some Linux distributions come with standard packages (e.g. Ubuntu's php-xdebug package). In our example we will run the profile optionally based on a request parameter. This allows us to keep settings static and turn on the profiler only as needed.

# php.ini settings
# Set to 1 to turn it on for every request
xdebug.profiler_enable = 0
# Let's use a GET/POST parameter to turn on the profiler
xdebug.profiler_enable_trigger = 1
# The GET/POST value we will pass; empty for any value
xdebug.profiler_enable_trigger_value = ""
# Output cachegrind files to /tmp so our system cleans them up later
xdebug.profiler_output_dir = "/tmp"
xdebug.profiler_output_name = "cachegrind.out.%p"

Next use a web client to make a request to your application's URL you wish to profile, e.g.

http://example.com/article/1?XDEBUG_PROFILE=1

As the page processes it will write to a file with a name similar to

/tmp/cachegrind.out.12345

By default the number in the filename is the process id which wrote it. This is configurable with the xdebug.profiler_output_name setting.

Note that it will write one file for each PHP request / process that is executed. So, for example, if you wish to analyze a form post, one profile will be written for the GET request to display the HTML form. The XDEBUG_PROFILE parameter will need to be passed into the subsequent POST request to analyze the second request which processes the form. Therefore when profiling it is sometimes easier to run curl to POST a form directly.

Analyzing the Output

Once written the profile cache can be read by an application such as KCachegrind or Webgrind. PHPStorm, a popular PHP IDE, can also display this profiling data.

KCachegrind, for example, will display information including:

• Functions executed
• Call time, both itself and inclusive of subsequent function calls
• Number of times each function is called
• Call graphs
• Links to source code

What to Look For

Obviously performance tuning is very specific to each application's use cases. In general it's good to look for:

• Repeated calls to the same function you wouldn't expect to see. For functions that process and query data these could be prime opportunities for your application to cache.
• Slow-running functions. Where is the application spending most of its time? the best payoff in performance tuning is focusing on those parts of the application which consume the most time.

Note: Xdebug, and in particular its profiling features, are very resource intensive and slow down PHP execution. It is recommended to not run these in a production server environment.

Also you will need to zoom and center the map due to your country restrictions!

Just use zoom and center parameters! ;)

function initialize() {
  var myOptions = {
    zoom: countries['us'].zoom,
    center: countries['us'].center,
    mapTypeControl: false,
    panControl: false,
    zoomControl: false,
    streetViewControl: false
  };

  ... all other code ...

}

I ended up using:

Function DirectoryExists(Directory As String) As Boolean
    DirectoryExists = False
    If Len(Dir(Directory, vbDirectory)) > 0 Then
        If (GetAttr(Directory) And vbDirectory) = vbDirectory Then
            DirectoryExists = True
        End If
    End If
End Function

which is a mix of @Brian and @ZygD answers. Where I think @Brian's answer is not enough and don't like the On Error Resume Next used in @ZygD's answer

It seems from your question that you would like to simply increment the year of your given date rather than worry about leap year implications. You can use the date class to do this by accessing its member year.

from datetime import date
startDate = date(2012, 12, 21)

# reconstruct date fully
endDate = date(startDate.year + 1, startDate.month, startDate.day)
# replace year only
endDate = startDate.replace(startDate.year + 1)

If you're having problems creating one given your format, let us know.

For a VARBINARY(MAX) column, I had to use NVARCHAR(MAX):

cast(Content as nvarchar(max))

Or

CONVERT(NVARCHAR(MAX), Content, 0)
VARCHAR(MAX) didn't show the entire value

Add a column to your existing data to get rid of the hour:minute:second time stamp on each row:

 =DATE(YEAR(A1), MONTH(A1), DAY(A1))

Extend this down the length of your data. Even easier: quit collecting the hh:mm:ss data if you don't need it. Assuming your date/time was in column A, and your value was in column B, you'd put the above formula in column C, and auto-extend it for all your data.

Now, in another column (let's say E), create a series of dates corresponding to each day of the specific month you're interested in. Just type the first date, (for example, 10/7/2016 in E1), and auto-extend. Then, in the cell next to the first date, F1, enter:

=SUMIF(C:C, E1, B:B )

autoextend the formula to cover every date in the month, and you're done. Begin at 1/1/2016, and auto-extend for the whole year if you like.

Use sequences in postgres for id columns:

INSERT mytable(myid) VALUES (nextval('MySequence'));

SELECT currval('MySequence');

currval will return the current value of the sequence in the same session.

(In MS SQL, you would use @@identity or SCOPE_IDENTITY())

try chmod a+x /path/to/tomcat/bin/catalina.sh if you run it in intelliJ

Add a style = color:black !important; in your input type.

Json.NET probably serializes C# dictionaries adequately now, but when the OP originally posted this question, many MVC developers may have been using the JavaScriptSerializer class because that was the default option out of the box.

If you're working on a legacy project (MVC 1 or MVC 2), and you can't use Json.NET, I recommend that you use a List<KeyValuePair<K,V>> instead of a Dictionary<K,V>>. The legacy JavaScriptSerializer class will serialize this type just fine, but it will have problems with a dictionary.

Documentation: Serializing Collections with Json.NET

In Swift, I'm using:

In my Macros.swift I just added

var startTime = NSDate()
func TICK(){ startTime =  NSDate() }
func TOCK(function: String = __FUNCTION__, file: String = __FILE__, line: Int = __LINE__){
    println("\(function) Time: \(startTime.timeIntervalSinceNow)\nLine:\(line) File: \(file)")
}

you can now just call anywhere

TICK()

// your code to be tracked

TOCK()

Swift 5.0

   var startTime = NSDate()
func TICK(){ startTime =  NSDate() }
func TOCK(function: String = #function, file: String = #file, line: Int = #line){
    print("\(function) Time: \(startTime.timeIntervalSinceNow)\nLine:\(line) File: \(file)")
}

• this code is based on Ron's code translate to Swift, he has the credits
• I'm using start date at global level, any suggestion to improve are welcome

Slightly different case, but it may help someone.

I followed the instructions to create a secondary database instance, and I had to clone the ini file as part of that. It was failing to start the service, with the same error. Turns out notepad.exe had re-encoded the cloned ini file as UTF8-BOM, and MySQL (version 8) refused to work with it. Removing the BOM fixed the problem.

If you have a lot of variables to convert in optional, you can use SubimeText with this:

Find: \${([A-Za-z_0-9]*)}
Replace: \$\{${1}!\}

Be sure regex and case-sensitive options are enabled:

There is a Select2 plugin allowing to set a lot of cool stuff along with placeholder. It is a jQuery replacement for select boxes. Here is an official site https://select2.github.io/examples.html

The thing is - if you want to disable fancy search option, please use the following option set.

data-plugin-options='
{ 
    "placeholder": "Select status",
    "allowClear": true, 
    "minimumResultsForSearch": -1
}

Especially I like the allowClear option.

Thank you.

To put it in very practical terms:

If you use a const in dll A and dll B references that const, the value of that const will be compiled into dll B. If you redeploy dll A with a new value for that const, dll B will still be using the original value.

If you use a readonly in dll A and dll B references that readonly, that readonly will always be looked up at runtime. This means if you redeploy dll A with a new value for that readonly, dll B will use that new value.

The CSS content property along with ::after and ::before pseudo-elements have been introduced for this.

.item:hover a p.new-label:after{
    content: 'ADD';
}

JSFiddle Demo

var isDate_ = function(input) {
        var status = false;
        if (!input || input.length <= 0) {
          status = false;
        } else {
          var result = new Date(input);
          if (result == 'Invalid Date') {
            status = false;
          } else {
            status = true;
          }
        }
        return status;
      }

In Python 3, dict.values() (along with dict.keys() and dict.items()) returns a view, rather than a list. See the documentation here. You therefore need to wrap your call to dict.values() in a call to list like so:

v = list(d.values())
{names[i]:v[i] for i in range(len(names))}

The need for pointers in C language is described here

The basic idea is that many limitations in the language (like using arrays, strings and modifying multiple variables in functions) could be removed by manipulating with the memory location of the data. To overcome these limitations, pointers were introduced in C.

Further, it is also seen that using pointers, you can run your code faster and save memory in cases where you are passing big data types (like a structure with many fields) to a function. Making a copy of such data types before passing would take time and would consume memory. This is another reason why programmers prefer pointers for big data types.

PS: Please refer the link provided for detailed explanation with sample code.

Alright, I see alot of misinformation here. For starters, creating a web page using a certain resolution, say 800x600 for example, makes that page render properly using that resolution only! When that same page is displayed on someone else's laptop, or home PC monitor, the page will be displayed using that screen's current resolution, NOT the resolution you used when designing the page. Don't create web pages for one specific resolution! There are too many different aspect ratios and screen resolutions to expect a "one size fits all" scenario, that with web design does not exist. Here's the solution: Use CSS3 Media Queries to create resolution adaptable code. Here's an example:

@media screen and (max-width: 800px) {
styles
}
@media screen and (max-width: 1024px) {
styles
}
@media screen and (max-width: 1280px) {
styles
}

See, what we just did was specify 3 sets of styles that render at different resolutions. In the case of our example, if a screen's resolution is larger than 800px, the CSS for 1024 will be executed instead. Likewise, if the screen displaying the content was 1224px, the 1280 would be executed since 1224 is larger than 1024. The site I'm working on now functions at all resolutions 800x600 to 1920x1080. Another thing to keep in mind is that not all monitors with the same resolution have the same size screens. You could put 15.4 laptops side by side, while both look the same, both could have drastically different resolutions, since not all pixels are the same size on different LCD screens. So, use media queries, and start creating your website with a laptop screen with high resolution, particularly 1280+. Also, create each media query using a different resolution on your laptop. You could use your resolution settings in Windows to adjust down 800x600 and creating a media query at that res, and then switch to 1024x768 and create another media query at that res. I could go on and on, but I think you guys should get the point.

UPDATE: Here's a link to using media queries that will help explain more, Innovative Web Design for Mobile Devices with Media Queries

That tutorial will show you how to design for all devices. There's also tutorials for Media Queries specifically. I developed the entire site to render on all devices, all screens, and all resolutions using no subdomains, and only CSS! I am still working on support for tablets and smart phones. The site renders perfectly on any laptop, or your 50inch LCD TV, and many pages work perfectly on all mobile devices. If you put all your code on page, then your pages will load lightening fast! Also, be sure to pay attention to discussion in that article about the CSS "background-size: cover;" or "contain" properties, they will make your background graphics fluid and able to render perfectly at all resolutions.

Follow the sites tutorials and you can make a single web page that renders on everything and anything!

Here are the Registry exports (*.reg files) for Git GUI and Git Bash directly from the Windows installer —Git GUI:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\background\shell\git_gui]
@="Git &GUI Here"
"Icon"="C:\\Program Files\\Git\\cmd\\git-gui.exe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\background\shell\git_gui\command]
@="\"C:\\Program Files\\Git\\cmd\\git-gui.exe\" \"--working-dir\" \"%v.\""

Git bash:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\background\shell\git_shell]
@="Git Ba&sh Here"
"Icon"="C:\\Program Files\\Git\\git-bash.exe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\background\shell\git_shell\command]
@="\"C:\\Program Files\\Git\\git-bash.exe\" \"--cd=%v.\""

For detail about *.reg files, see “How to add, modify, or delete registry subkeys and values by using a .reg file” from Microsoft.

if you don't want to start nginx as root.

first creat log file :

sudo touch /var/log/nginx/error.log

and then fix permissions:

sudo chown -R www-data:www-data /var/log/nginx

sudo find /var/log/nginx -type f -exec chmod 666 {} \;

sudo find /var/log/nginx -type d -exec chmod 755 {} \;

You can use np.logaddexp (which implements the idea in @gg349's answer):

In [33]: d = np.array([[1089, 1093]])

In [34]: e = np.array([[1000, 4443]])

In [35]: log_res = np.logaddexp(-3*d[0,0], -3*d[0,1]) - np.logaddexp(-3*e[0,0], -3*e[0,1])

In [36]: log_res
Out[36]: -266.99999385580668

In [37]: res = exp(log_res)

In [38]: res
Out[38]: 1.1050349147204485e-116

Or you can use scipy.special.logsumexp:

In [52]: from scipy.special import logsumexp

In [53]: res = np.exp(logsumexp(-3*d) - logsumexp(-3*e))

In [54]: res
Out[54]: 1.1050349147204485e-116

Array.prototype.slice=function(start,end){
    let res=[];
    start=start||0;
    end=end||this.length
    for(let i=start;i<end;i++){
        res.push(this[i])
    }
    return res;
}

when you do:

Array.prototype.slice.call(arguments) 

arguments becomes the value of this in slice ,and then slice returns an array

Ok, I don't normally answer my own questions but after a bit of tinkering, I have figured out definitively how Oracle stores the result of a DATE subtraction.

When you subtract 2 dates, the value is not a NUMBER datatype (as the Oracle 11.2 SQL Reference manual would have you believe). The internal datatype number of a DATE subtraction is 14, which is a non-documented internal datatype (NUMBER is internal datatype number 2). However, it is actually stored as 2 separate two's complement signed numbers, with the first 4 bytes used to represent the number of days and the last 4 bytes used to represent the number of seconds.

An example of a DATE subtraction resulting in a positive integer difference:

select date '2009-08-07' - date '2008-08-08' from dual;

Results in:

DATE'2009-08-07'-DATE'2008-08-08'
---------------------------------
                              364

select dump(date '2009-08-07' - date '2008-08-08') from dual;

DUMP(DATE'2009-08-07'-DATE'2008
-------------------------------
Typ=14 Len=8: 108,1,0,0,0,0,0,0

Recall that the result is represented as a 2 seperate two's complement signed 4 byte numbers. Since there are no decimals in this case (364 days and 0 hours exactly), the last 4 bytes are all 0s and can be ignored. For the first 4 bytes, because my CPU has a little-endian architecture, the bytes are reversed and should be read as 1,108 or 0x16c, which is decimal 364.

An example of a DATE subtraction resulting in a negative integer difference:

select date '1000-08-07' - date '2008-08-08' from dual;

Results in:

DATE'1000-08-07'-DATE'2008-08-08'
---------------------------------
                          -368160

select dump(date '1000-08-07' - date '2008-08-08') from dual;

DUMP(DATE'1000-08-07'-DATE'2008-08-0
------------------------------------
Typ=14 Len=8: 224,97,250,255,0,0,0,0

Again, since I am using a little-endian machine, the bytes are reversed and should be read as 255,250,97,224 which corresponds to 11111111 11111010 01100001 11011111. Now since this is in two's complement signed binary numeral encoding, we know that the number is negative because the leftmost binary digit is a 1. To convert this into a decimal number we would have to reverse the 2's complement (subtract 1 then do the one's complement) resulting in: 00000000 00000101 10011110 00100000 which equals -368160 as suspected.

An example of a DATE subtraction resulting in a decimal difference:

select to_date('08/AUG/2004 14:00:00', 'DD/MON/YYYY HH24:MI:SS'
 - to_date('08/AUG/2004 8:00:00', 'DD/MON/YYYY HH24:MI:SS') from dual;

TO_DATE('08/AUG/200414:00:00','DD/MON/YYYYHH24:MI:SS')-TO_DATE('08/AUG/20048:00:
--------------------------------------------------------------------------------
                                                                             .25

The difference between those 2 dates is 0.25 days or 6 hours.

select dump(to_date('08/AUG/2004 14:00:00', 'DD/MON/YYYY HH24:MI:SS')
 - to_date('08/AUG/2004 8:00:00', 'DD/MON/YYYY HH24:MI:SS')) from dual;

DUMP(TO_DATE('08/AUG/200414:00:
-------------------------------
Typ=14 Len=8: 0,0,0,0,96,84,0,0

Now this time, since the difference is 0 days and 6 hours, it is expected that the first 4 bytes are 0. For the last 4 bytes, we can reverse them (because CPU is little-endian) and get 84,96 = 01010100 01100000 base 2 = 21600 in decimal. Converting 21600 seconds to hours gives you 6 hours which is the difference which we expected.

Hope this helps anyone who was wondering how a DATE subtraction is actually stored.

You get the syntax error because the date math does not return a NUMBER, but it returns an INTERVAL:

SQL> SELECT DUMP(SYSDATE - start_date) from test;

DUMP(SYSDATE-START_DATE)
-------------------------------------- 
Typ=14 Len=8: 188,10,0,0,223,65,1,0

You need to convert the number in your example into an INTERVAL first using the NUMTODSINTERVAL Function

For example:

SQL> SELECT (SYSDATE - start_date) DAY(5) TO SECOND from test;

(SYSDATE-START_DATE)DAY(5)TOSECOND
----------------------------------
+02748 22:50:04.000000

SQL> SELECT (SYSDATE - start_date) from test;

(SYSDATE-START_DATE)
--------------------
           2748.9515

SQL> select NUMTODSINTERVAL(2748.9515, 'day') from dual;

NUMTODSINTERVAL(2748.9515,'DAY')
--------------------------------
+000002748 22:50:09.600000000

SQL>

Based on the reverse cast with the NUMTODSINTERVAL() function, it appears some rounding is lost in translation.

ALTER tablename MODIFY columnName newColumnType

I'm not sure how it will handle the change from datetime to varchar though, so you may need to rename the column, add a new one with the old name and the correct data type (varchar) and then write an update query to populate the new column from the old.

http://www.1keydata.com/sql/sql-alter-table.html

The PermGen space is what Tomcat uses to store class definitions (definitions only, no instantiations) and string pools that have been interned. From experience, the PermGen space issues tend to happen frequently in dev environments really since Tomcat has to load new classes every time it deploys a WAR or does a jspc (when you edit a jsp file). Personally, I tend to deploy and redeploy wars a lot when I’m in dev testing so I know I’m bound to run out sooner or later (primarily because Java’s GC cycles are still kinda crap so if you redeploy your wars quickly and frequently enough, the space fills up faster than they can manage).

This should theoretically be less of an issue in production environments since you (hopefully) don’t change the codebase on a 10 minute basis. If it still occurs, that just means your codebase (and corresponding library dependencies) are too large for the default memory allocation and you’ll just need to mess around with stack and heap allocation. I think the standards are stuff like:

-XX:MaxPermSize=SIZE

I’ve found however the best way to take care of that for good is to allow classes to be unloaded so your PermGen never runs out:

-XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled

Stuff like that worked magic for me in the past. One thing tho, there’s a significant performance tradeoff in using those, since permgen sweeps will make like an extra 2 requests for every request you make or something along those lines. You’ll need to balance your use with the tradeoffs.

Before everyone jumps to HOLDLOCK-s out of fear from these nafarious users running your sprocs directly :-) let me point out that you have to guarantee uniqueness of new PK-s by design (identity keys, sequence generators in Oracle, unique indexes for external ID-s, queries covered by indexes). That's the alpha and omega of the issue. If you don't have that, no HOLDLOCK-s of the universe are going to save you and if you do have that then you don't need anything beyond UPDLOCK on the first select (or to use update first).

Sprocs normally run under very controlled conditions and with the assumption of a trusted caller (mid tier). Meaning that if a simple upsert pattern (update+insert or merge) ever sees duplicate PK that means a bug in your mid-tier or table design and it's good that SQL will yell a fault in such case and reject the record. Placing a HOLDLOCK in this case equals eating exceptions and taking in potentially faulty data, besides reducing your perf.

Having said that, Using MERGE, or UPDATE then INSERT is easier on your server and less error prone since you don't have to remember to add (UPDLOCK) to first select. Also, if you are doing inserts/updates in small batches you need to know your data in order to decide whether a transaction is appropriate or not. It it's just a collection of unrelated records then additional "enveloping" transaction will be detrimental.

you can use UILabel instead if you don't want the user to be able to modify anything in your UITextField

A programmatic solution would be to use enabled property:

yourTextField.enabled = false

A way to do it in a storyboard:

Uncheck the Enabled checkbox in the properties of your UITextField

if you like to use for URLRequest httpBody

extension Dictionary {

    func toString() -> String? {
        return (self.compactMap({ (key, value) -> String in
            return "\(key)=\(value)"
        }) as Array).joined(separator: "&")
    }

}

// print: Fields=sdad&ServiceId=1222

This is very simple beacuse i have created a couple lines of code that will do this for you

So set a variable as msg and then use this code. it popup in a VBS message box.

CODE:

@echo off
echo %msg% >vbs.txt
copy vbs.txt vbs.vbs
del vbs.txt
start vbs.vbs
timeout /t 1
del vbs.vbs
cls

This is just something i came up with it should work for most of your message needs and it also works with Spaces unlike some batch scripts

Swift 5

To make it easy, create a file "DispatchQueue+Extensions.swift" with this content :

import Foundation

typealias Dispatch = DispatchQueue

extension Dispatch {

    static func background(_ task: @escaping () -> ()) {
        Dispatch.global(qos: .background).async {
            task()
        }
    }

    static func main(_ task: @escaping () -> ()) {
        Dispatch.main.async {
            task()
        }
    }
}

Usage :

Dispatch.background {
    // do stuff

    Dispatch.main { 
        // update UI
    }
}

You may use gitignore for advanced gitignore file generation. It's fast, easy and cutting edge tags are automatically generated for you.

Use this link for most of jetbrains softwares (intelij, phpstorm...) jetbrains .gitignore file

[edit]

Below is the generated gitignore file for Jetbrains Softwares, this will prevent you from sharing sensitive informations (passwords, keystores, db passwords...) used by any of Jetbrains software to manage projects.

# Created by https://www.gitignore.io

### Intellij ###
# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm

*.iml

## Directory-based project format:
.idea/
# if you remove the above rule, at least ignore the following:

# User-specific stuff:
# .idea/workspace.xml
# .idea/tasks.xml
# .idea/dictionaries

# Sensitive or high-churn files:
# .idea/dataSources.ids
# .idea/dataSources.xml
# .idea/sqlDataSources.xml
# .idea/dynamic.xml
# .idea/uiDesigner.xml

# Gradle:
# .idea/gradle.xml
# .idea/libraries

# Mongo Explorer plugin:
# .idea/mongoSettings.xml

## File-based project format:
*.ipr
*.iws

## Plugin-specific files:

# IntelliJ
/out/

# mpeltonen/sbt-idea plugin
.idea_modules/

# JIRA plugin
atlassian-ide-plugin.xml

# Crashlytics plugin (for Android Studio and IntelliJ)
com_crashlytics_export_strings.xml
crashlytics.properties
crashlytics-build.properties

Generated code is also well commented. hope it helps :)

Although it might look out of topic nobody bothered to check the ERRORLEVEL. When I used your suggestions I tried to check for errors straight after the MSI installation. I made it fail on purpose and noticed that on the command line all works beautifully whilst in a batch file msiexec dosn't seem to set errors. Tried different things there like

• Using start /wait
• Using !ERRORLEVEL! variable instead of %ERRORLEVEL%
• Using SetLocal EnableDelayedExpansion

Nothing works and what mostly annoys me it's the fact that it works in the command line.

1. exec is not an expression: a statement in Python 2.x, and a function in Python 3.x. It compiles and immediately evaluates a statement or set of statement contained in a string. Example:

    exec('print(5)')           # prints 5.
    # exec 'print 5'     if you use Python 2.x, nor the exec neither the print is a function there
    exec('print(5)\nprint(6)')  # prints 5{newline}6.
    exec('if True: print(6)')  # prints 6.
    exec('5')                 # does nothing and returns nothing.
   

2. eval is a built-in function (not a statement), which evaluates an expression and returns the value that expression produces. Example:

    x = eval('5')              # x <- 5
    x = eval('%d + 6' % x)     # x <- 11
    x = eval('abs(%d)' % -100) # x <- 100
    x = eval('x = 5')          # INVALID; assignment is not an expression.
    x = eval('if 1: x = 4')    # INVALID; if is a statement, not an expression.
   

3. compile is a lower level version of exec and eval. It does not execute or evaluate your statements or expressions, but returns a code object that can do it. The modes are as follows:

4. compile(string, '', 'eval') returns the code object that would have been executed had you done eval(string). Note that you cannot use statements in this mode; only a (single) expression is valid.

5. compile(string, '', 'exec') returns the code object that would have been executed had you done exec(string). You can use any number of statements here.

6. compile(string, '', 'single') is like the exec mode but expects exactly one expression/statement, eg compile('a=1 if 1 else 3', 'myf', mode='single')

These are escape characters which are used to manipulate string.

\t  Insert a tab in the text at this point.
\b  Insert a backspace in the text at this point.
\n  Insert a newline in the text at this point.
\r  Insert a carriage return in the text at this point.
\f  Insert a form feed in the text at this point.
\'  Insert a single quote character in the text at this point.
\"  Insert a double quote character in the text at this point.
\\  Insert a backslash character in the text at this point.

Read more about them from here.

http://docs.oracle.com/javase/tutorial/java/data/characters.html

Why parentheses?

Here is the quote from the book programming in scala.

Another important idea illustrated by this example will give you insight into why arrays are accessed with parentheses in Scala. Scala has fewer special cases than Java. Arrays are simply instances of classes like any other class in Scala. When you apply parentheses surrounding one or more values to a variable, Scala will transform the code into an invocation of a method named apply on that variable. So greetStrings(i) gets transformed into greetStrings.apply(i). Thus accessing an element of an array in Scala is simply a method call like any other. This principle is not restricted to arrays: any application of an object to some arguments in parentheses will be transformed to an apply method call. Of course this will compile only if that type of object actually defines an apply method. So it's not a special case; it's a general rule.

Here are a few examples how to pull certain element (first elem in this case) using functional programming style.

  // Create a multdimension Array 
  scala> val a = Array.ofDim[String](2, 3)
  a: Array[Array[String]] = Array(Array(null, null, null), Array(null, null, null))
  scala> a(0) = Array("1","2","3")
  scala> a(1) = Array("4", "5", "6")
  scala> a
  Array[Array[String]] = Array(Array(1, 2, 3), Array(4, 5, 6))

  // 1. paratheses
  scala> a.map(_(0))
  Array[String] = Array(1, 4)
  // 2. apply
  scala> a.map(_.apply(0))
  Array[String] = Array(1, 4)
  // 3. function literal
  scala> a.map(a => a(0))
  Array[String] = Array(1, 4)
  // 4. lift
  scala> a.map(_.lift(0))
  Array[Option[String]] = Array(Some(1), Some(4))
  // 5. head or last 
  scala> a.map(_.head)
  Array[String] = Array(1, 4)

I have created a simple way of doing such and made it simple as possible. At the "pause" at the end is where you would continue your code. Picture of executed Code

# [CODE]        [DESCRIPTION]
#
# echo. &       starts a new line
# echo.         skips a line
# PainText 08       08 is color code for gray   Type "color ?" for color codes
# " Red"        The space befor text gives space between the word befor it


@echo off
cls && color 08

for /F "tokens=1,2 delims=#" %%a in ('"prompt #$H#$E# & echo on & for %%b in (1) do rem"') do (set "DEL=%%a")


<nul set /p=""
call :PainText 08 "Gray"
call :PainText 04 " Red"
call :PainText 02 " Green"
call :PainText 08 " Gray"
echo. &
call :PainText 02 "Line 2 Green No space"
echo. &
echo.
call :PainText 01 "H"
call :PainText 02 "E"
call :PainText 03 "L"
call :PainText 03 "L"
call :PainText 05 "O"
echo.


goto :end

:PainText
<nul set /p "=%DEL%" > "%~2"
findstr /v /a:%1 /R "+" "%~2" nul
del "%~2" > nul
goto :eof

:end
echo.

pause

You can use ISNULL(....)

SET @Concatenated = ISNULL(@Column1, '') + ISNULL(@Column2, '')

If the value of the column/expression is indeed NULL, then the second value specified (here: empty string) will be used instead.

If you look at the output you receive from print() and also in your Traceback, you'll see the value you get back is not a string, it's a bytes object (prefixed by b):

b'{\n  "note":"This file    .....

If you fetch the URL using a tool such as curl -v, you will see that the content type is

Content-Type: application/json; charset=utf-8

So it's JSON, encoded as UTF-8, and Python is considering it a byte stream, not a simple string. In order to parse this, you need to convert it into a string first.

Change the last line of code to this:

info = json.loads(js.decode("utf-8"))

Another approach is to not have the secret on the device in the first place! See Mobile API Security Techniques (especially part 3).

Using the time honored tradition of indirection, share the secret between your API endpoint and an app authentication service.

When your client wants to make an API call, it asks the app auth service to authenticate it (using strong remote attestation techniques), and it receives a time limited (usually JWT) token signed by the secret.

The token is sent with each API call where the endpoint can verify its signature before acting on the request.

The actual secret is never present on the device; in fact, the app never has any idea if it is valid or not, it juts requests authentication and passes on the resulting token. As a nice benefit from indirection, if you ever want to change the secret, you can do so without requiring users to update their installed apps.

So if you want to protect your secret, not having it in your app in the first place is a pretty good way to go.

button {
    background:transparent;
    border:none;
    outline:none;
    display:block;
    height:200px;
    width:200px;
    cursor:pointer;
}

Give the height and width with respect to the image in the background.This removes the borders and color of a button.You might also need to position it absolute so you can correctly place it where you need.I cant help you further without posting you code

To make it truly invisible you have to set outline:none; otherwise there would be a blue outline in some browsers and you have to set display:block if you need to click it and set dimensions to it

You missed the closing tag for the input fields, and you can choose any one of the events, ex: onload, onclick etc.

(a) Onload event:

<script type="text/javascript">
$(document).ready(function(){
     $('#frm1').submit();
});
</script>

(b) Onclick Event:

<form name="frm1" id="frm1" action="../somePage" method="post">
    Please Waite... 
    <input type="hidden" name="uname" id="uname" value=<?php echo $uname;?> />
    <input type="hidden" name="price" id="price" value=<?php echo $price;?> />
    <input type="text" name="submit" id="submit" value="submit">
</form>
<script type="text/javascript">
$('#submit').click(function(){
     $('#frm1').submit();
});
</script>

This is an old question, nevertheless this topic never ceases to bug me.

As many of the answers here and across the web focus on "enforcing" the interface, I'd like to suggest an alternative view:

I feel the lack of interfaces the most when I'm using multiple classes that behave similarly (i.e. implement an interface).

For example, I have an Email Generator that expects to receive Email Sections Factories, that "know" how to generate the sections' content and HTML. Hence, they all need to have some sort of getContent(id) and getHtml(content) methods.

The closest pattern to interfaces (albeit it's still a workaround) I could think of is using a class that'll get 2 arguments, which will define the 2 interface methods.

The main challenge with this pattern is that the methods either have to be static, or to get as argument the instance itself, in order to access its properties. However there are cases in which I find this trade-off worth the hassle.

class Filterable {_x000D_
  constructor(data, { filter, toString }) {_x000D_
    this.data = data;_x000D_
    this.filter = filter;_x000D_
    this.toString = toString;_x000D_
    // You can also enforce here an Iterable interface, for example,_x000D_
    // which feels much more natural than having an external check_x000D_
  }_x000D_
}_x000D_
_x000D_
const evenNumbersList = new Filterable(_x000D_
  [1, 2, 3, 4, 5, 6], {_x000D_
    filter: (lst) => {_x000D_
      const evenElements = lst.data.filter(x => x % 2 === 0);_x000D_
      lst.data = evenElements;_x000D_
    },_x000D_
    toString: lst => `< ${lst.data.toString()} >`,_x000D_
  }_x000D_
);_x000D_
_x000D_
console.log('The whole list:    ', evenNumbersList.toString(evenNumbersList));_x000D_
evenNumbersList.filter(evenNumbersList);_x000D_
console.log('The filtered list: ', evenNumbersList.toString(evenNumbersList));

After replacing the character, you need to be asign to the variable.

var tt = "88,9827";
tt = tt.replace(/,/g, '.')
alert(tt)

In the alert box it will shows 88.9827

I try to sort data with query it working fine for me please try this:

select name from user order by name asc 

Also try below query for search record by alphabetically

SELECT name  FROM `user` WHERE `name` LIKE 'b%' 

For the most updated version 2.71828 These are your answer.

Q1: Does it not have local disk cache?

A1: There is default caching within Picasso and the request flow just like this

App -> Memory -> Disk -> Server

Wherever they met their image first, they'll use that image and then stop the request flow. What about response flow? Don't worry, here it is.

Server -> Disk -> Memory -> App

By default, they will store into a local disk first for the extended keeping cache. Then the memory, for the instance usage of the cache.

You can use the built-in indicator in Picasso to see where images form by enabling this.

Picasso.get().setIndicatorEnabled(true);

It will show up a flag on the top left corner of your pictures.

• Red flag means the images come from the server. (No caching at first load)
• Blue flag means the photos come from the local disk. (Caching)
• Green flag means the images come from the memory. (Instance Caching)

Q2: How do I enable disk caching as I will be using the same image multiple times?

A2: You don't have to enable it. It's the default.

What you'll need to do is DISABLE it when you want your images always fresh. There is 2-way of disabled caching.

1. Set .memoryPolicy() to NO_CACHE and/or NO_STORE and the flow will look like this.

NO_CACHE will skip looking up images from memory.

App -> Disk -> Server

NO_STORE will skip store images in memory when the first load images.

Server -> Disk -> App

2. Set .networkPolicy() to NO_CACHE and/or NO_STORE and the flow will look like this.

NO_CACHE will skip looking up images from disk.

App -> Memory -> Server

NO_STORE will skip store images in the disk when the first load images.

Server -> Memory -> App

You can DISABLE neither for fully no caching images. Here is an example.

Picasso.get().load(imageUrl)
             .memoryPolicy(MemoryPolicy.NO_CACHE,MemoryPolicy.NO_STORE)
             .networkPolicy(NetworkPolicy.NO_CACHE, NetworkPolicy.NO_STORE)
             .fit().into(banner);

The flow of fully no caching and no storing will look like this.

App -> Server //Request

Server -> App //Response

So, you may need this to minify your app storage usage also.

Q3: Do I need to add some disk permission to android manifest file?

A3: No, but don't forget to add the INTERNET permission for your HTTP request.

WARNING! I have a very strong view on this subject.

.NET’s existing web clients are not developer friendly! WebRequest & WebClient are prime examples of "how to frustrate a developer". They are verbose & complicated to work with; when all you want to do is a simple Post request in C#. HttpClient goes some way in addressing these issues, but it still falls short. On top of that Microsoft’s documentation is bad … really bad; unless you want to sift through pages and pages of technical blurb.

Open-source to the rescue. There are three excellent open-source, free NuGet libraries as alternatives. Thank goodness! These are all well supported, documented and yes, easy - correction…super easy - to work with.

• ServiceStack.Text - fast, light and resilient.
• RestSharp - simple REST and HTTP API Client
• Flurl- a fluent, portable, testable HTTP client library

There is not much between them, but I would give ServiceStack.Text the slight edge …

• Github stars are roughly the same.
• Open Issues & importantly how quickly any issues closed down? ServiceStack takes the award here for the fastest issue resolution & no open issues.
• Documentation? All have great documentation; however, ServiceStack takes it to the next level & is known for its ‘Golden standard’ for documentation.

Ok - so what does a Post Request in JSON look like within ServiceStack.Text?

var response = "http://example.org/login"
    .PostJsonToUrl(new Login { Username="admin", Password="mypassword" });

That is one line of code. Concise & easy! Compare the above to .NET’s Http libraries.

another solution , you can add <br> tag to your table

    |Method name| Behavior |
    |--|--|
    | OnAwakeLogicController(); | Its called when MainLogicController is loaded into the memory , its also hold the following actions :- <br> 1. Checking Audio Settings <br>2. Initializing Level Controller|

Don't forget that the generated Javadoc for a class will include a list of known subclasses (and for interfaces, known implementing classes).

You could try defining a static function below or above your implementation that takes a pointer to your instance. It will be able to access any of your instances variables.

//.h file
@interface MyClass : Object
{
    int test;
}
- (void) someMethod: anArg;

@end


//.m file    
@implementation MyClass

static void somePrivateMethod (MyClass *myClass, id anArg)
{
    fprintf (stderr, "MyClass (%d) was passed %p", myClass->test, anArg);
}


- (void) someMethod: (id) anArg
{
    somePrivateMethod (self, anArg);
}

@end

I was recently using this for a mobile site. This is John Resig's simplified version from "Pro JavaScript Techniques". It depends on addEvent.

var ready = ( function () {
  function ready( f ) {
    if( ready.done ) return f();

    if( ready.timer ) {
      ready.ready.push(f);
    } else {
      addEvent( window, "load", isDOMReady );
      ready.ready = [ f ];
      ready.timer = setInterval(isDOMReady, 13);
    }
  };

  function isDOMReady() {
    if( ready.done ) return false;

    if( document && document.getElementsByTagName && document.getElementById && document.body ) {
      clearInterval( ready.timer );
      ready.timer = null;
      for( var i = 0; i < ready.ready.length; i++ ) {
        ready.ready[i]();
      }
      ready.ready = null;
      ready.done = true;
    }
  }

  return ready;
})();

I recommend you start reading the documentation (4.6.18. Formatting cells). When applying a lot of formatting it's better to use applyFromArray() According to the documentation this method is also suppose to be faster when you're setting many style properties. There's an annex where you can find all the possible keys for this function.

This will work for you:

$phpExcel = new PHPExcel();

$styleArray = array(
    'font'  => array(
        'bold'  => true,
        'color' => array('rgb' => 'FF0000'),
        'size'  => 15,
        'name'  => 'Verdana'
    ));

$phpExcel->getActiveSheet()->getCell('A1')->setValue('Some text');
$phpExcel->getActiveSheet()->getStyle('A1')->applyFromArray($styleArray);

To apply font style to complete excel document:

 $styleArray = array(
   'font'  => array(
        'bold'  => true,
        'color' => array('rgb' => 'FF0000'),
        'size'  => 15,
        'name'  => 'Verdana'
    ));      
 $phpExcel->getDefaultStyle()
    ->applyFromArray($styleArray);

For a more aesthetic appearance :) can be:

left:-9999em; 
top:-9999em; 

position for .sNv2 .nav UL can be replaced by z-index:-1 and z-index:1 for .sNv2 .nav LI:Hover UL

Add the python bin directory to your computer's PATH variable. Its listed under Environment Variables in Computer Properties -> Advanced Settings in Windows 7. It should be the same for Windows 8.

Spring Framework provides an excellent utils class for achieving this.

Util class : NumberUtils

String to BigDecimal conversion -

NumberUtils.parseNumber("135.00", BigDecimal.class);

Building on the answers of prufrofro and Frank van Puffelen here, I put together this setup that doesn't prevent scraping, but can make it slightly harder to use your API key.

Warning: To get your data, even with this method, one can for example simply open the JS console in Chrome and type:

firebase.database().ref("/get/all/the/data").once("value", function (data) {
    console.log(data.val());
});

Only the database security rules can protect your data.

Nevertheless, I restricted my production API key use to my domain name like this:

1. https://console.developers.google.com/apis
2. Select your Firebase project
3. Credentials
4. Under API keys, pick your Browser key. It should look like this: "Browser key (auto created by Google Service)"
5. In "Accept requests from these HTTP referrers (web sites)", add the URL of your app (exemple: projectname.firebaseapp.com/* )

Now the app will only work on this specific domain name. So I created another API Key that will be private for localhost developement.

1. Click Create credentials > API Key

By default, as mentioned by Emmanuel Campos, Firebase only whitelists localhost and your Firebase hosting domain.

In order to make sure I don't publish the wrong API key by mistake, I use one of the following methods to automatically use the more restricted one in production.

Setup for Create-React-App

In /env.development:

REACT_APP_API_KEY=###dev-key###

In /env.production:

REACT_APP_API_KEY=###public-key###

In /src/index.js

const firebaseConfig = {
  apiKey: process.env.REACT_APP_API_KEY,
  // ... 
};

Try this -- it's efficient for timing short-term events. If something takes more than an hour, then the final display probably will want some friendly formatting.

import time
start = time.time()

time.sleep(10)  # or do something more productive

done = time.time()
elapsed = done - start
print(elapsed)

The time difference is returned as the number of elapsed seconds.

Use the built in "InternalServerError" method (available in ApiController):

return InternalServerError();
//or...
return InternalServerError(new YourException("your message"));

DateFormat = DD.MM.YYYY or D.M.YYYY

function dateValidate(val){ 
var dateStr = val.split('.'); 
  var date = new Date(dateStr[2], dateStr[1]-1, dateStr[0]); 
  if(date.getDate() == dateStr[0] && date.getMonth()+1 == dateStr[1] && date.getFullYear() == dateStr[2])
  { return date; }
  else{ return 'NotValid';} 
}

Why did it take a lot of valgrind investigation to find this out! Just prove it to yourself with some simple code e.g.

std::vector<std::string> vec;

{
      std::string obj("hello world");
      vec.push_pack(obj);
}

std::cout << vec[0] << std::endl;  

If "hello world" is printed, the object must have been copied

Originally from Overv @ reddit.

In my case i forgot to insert the class arguments

Wrong:

class AccountInformation():

Correct

class AccountInformation(models.Model):

Have you taken a look at the Intel Math Kernel Library? It claims to outperform even ATLAS. MKL can be used in Java through JNI wrappers.

If you add ?__a=1 at the end of Instagram public URLs, you get the data of the public URL in JSON.

For the media ID of an image from post URL, simply add the JSON request code at the post URL:

http://instagram.com/p/Y7GF-5vftL/?__a=1

The response will look like this below. You can easily recover the image ID from the "id" parameter in the reply...

{
"graphql": {
"shortcode_media": {
"__typename": "GraphImage",
"id": "448979387270691659",
"shortcode": "Y7GF-5vftL",
"dimensions": {
"height": 612,
"width": 612
},
"gating_info": null,
"fact_check_information": null,
"media_preview": null,
"display_url": "https://scontent-cdt1-1.cdninstagram.com/vp/6d4156d11e92ea1731377ef53324ce28/5E4D451A/t51.2885-15/e15/11324452_400723196800905_116356150_n.jpg?_nc_ht=scontent-cdt1-1.cdninstagram.com&_nc_cat=109",
"display_resources": [

Here are the steps to edit the commit message of a previous commit (which is not the most recent commit) using SourceTree for Windows version 1.5.2.0:

Step 1

Select the commit immediately before the commit that you want to edit. For example, if I want to edit the commit with message "FOOBAR!" then I need to select the commit that comes right before it:

Step 2

Right-click on the selected commit and click Rebase children...interactively:

Step 3

Select the commit that you want to edit, then click Edit Message at the bottom. In this case, I'm selecting the commit with the message "FOOBAR!":

Step 4

Edit the commit message, and then click OK. In my example, I've added "SHAZBOT! SKADOOSH!"

Step 5

When you return to interactive rebase window, click on OK to finish the rebase:

Step 6

At this point, you'll need to force-push your new changes since you've rebased commits that you've already pushed. However, the current 1.5.2.0 version of SourceTree for Windows does not allow you to force-push through the GUI, so you'll need to use Git from the command line anyways in order to do that.

Click Terminal from the GUI to open up a terminal.

Step 7

From the terminal force-push with the following command,

git push origin <branch> -f

where <branch> is the name of the branch that you want to push, and -f means to force the push. The force push will overwrite your commits on your remote repo, but that's OK in your case since you said that you're not sharing your repo with other people.

That's it! You're done!

Visual Studio reads NuGet.Config files from the solution root. Try moving it there instead of placing it in the same folder as the project.

You can also place the file at %appdata%\NuGet\NuGet.Config and it will be used everywhere.

https://docs.microsoft.com/en-us/nuget/schema/nuget-config-file

Try this:

// Code For IMEI AND IMSI NUMBER

String serviceName = Context.TELEPHONY_SERVICE;
TelephonyManager m_telephonyManager = (TelephonyManager) getSystemService(serviceName);
String IMEI,IMSI;
IMEI = m_telephonyManager.getDeviceId();
IMSI = m_telephonyManager.getSubscriberId();

The problem is the import of ProjectsListComponent in your ProjectsModule. You should not import that, but add it to the export array, if you want to use it outside of your ProjectsModule.

Other issues are your project routes. You should add these to an exportable variable, otherwise it's not AOT compatible. And you should -never- import the BrowserModule anywhere else but in your AppModule. Use the CommonModule to get access to the *ngIf, *ngFor...etc directives:

@NgModule({
  declarations: [
     ProjectsListComponent
  ],
  imports: [
    CommonModule,
    RouterModule.forChild(ProjectRoutes)
  ],
  exports: [
     ProjectsListComponent
  ]
})

export class ProjectsModule {}

project.routes.ts

export const ProjectRoutes: Routes = [
      { path: 'projects', component: ProjectsListComponent }
]

Your bean or pojo class should implements parcelable interface.

For example:

public class BeanClass implements Parcelable{
    String name;
    int age;
    String sex;

    public BeanClass(String name, int age, String sex) {
        this.name = name;
        this.age = age;
        this.sex = sex;
    } 
     public static final Creator<BeanClass> CREATOR = new Creator<BeanClass>() {
        @Override
        public BeanClass createFromParcel(Parcel in) {
            return new BeanClass(in);
        }

        @Override
        public BeanClass[] newArray(int size) {
            return new BeanClass[size];
        }
    };
    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeString(name);
        dest.writeInt(age);
        dest.writeString(sex);
    }
}

Consider a scenario that you want to send the arraylist of beanclass type from Activity1 to Activity2.
Use the following code

Activity1:

ArrayList<BeanClass> list=new ArrayList<BeanClass>();

private ArrayList<BeanClass> getList() {
    for(int i=0;i<5;i++) {

        list.add(new BeanClass("xyz", 25, "M"));
    }
    return list;
}
private void gotoNextActivity() {
    Intent intent=new Intent(this,Activity2.class);
    /* Bundle args = new Bundle();
    args.putSerializable("ARRAYLIST",(Serializable)list);
    intent.putExtra("BUNDLE",args);*/

    Bundle bundle = new Bundle();
    bundle.putParcelableArrayList("StudentDetails", list);
    intent.putExtras(bundle);
    startActivity(intent);
}

Activity2:

ArrayList<BeanClass> listFromActivity1=new ArrayList<>();

listFromActivity1=this.getIntent().getExtras().getParcelableArrayList("StudentDetails");

if (listFromActivity1 != null) {

    Log.d("listis",""+listFromActivity1.toString());
}

I think this basic to understand the concept.

you may try this one, used CONCAT

WHERE LastName LIKE Concat('%',@LastName,'%')

It means that you're trying to insert into table2 a UserID value that doesn't exist in table1.

I have the same issue. The java.net.SocketTimeoutException: Read timed out error happens on Tomcat under Mac 11.1, but it works perfectly in Mac 10.13. Same Tomcat folder, same WAR file. Have tried setting timeout values higher, but nothing I do works. If I run the same SpringBoot code in a regular Java application (outside Tomcat 9.0.41 (tried other versions too), then it works also.

Mac 11.1 appears to be interfering with Tomcat.

As another test, if I copy the WAR file to an AWS EC2 instance, it works fine there too.

Spent several days trying to figure this out, but cannot resolve.

Suggestions very welcome! :)

Have you tried the SVG text element?

.append("text").text(function(d, i) { return d[whichevernode];})

rect element doesn't permit text element inside of it. It only allows descriptive elements (<desc>, <metadata>, <title>) and animation elements (<animate>, <animatecolor>, <animatemotion>, <animatetransform>, <mpath>, <set>)

Append the text element as a sibling and work on positioning.

UPDATE

Using g grouping, how about something like this? fiddle

You can certainly move the logic to a CSS class you can append to, remove from the group (this.parentNode)

Try dir /b, for bare format.

dir /? will show you documentation of what you can do with the dir command. Here is the output from my Windows 7 machine:

C:\>dir /?
Displays a list of files and subdirectories in a directory.

DIR [drive:][path][filename] [/A[[:]attributes]] [/B] [/C] [/D] [/L] [/N]
  [/O[[:]sortorder]] [/P] [/Q] [/R] [/S] [/T[[:]timefield]] [/W] [/X] [/4]

  [drive:][path][filename]
              Specifies drive, directory, and/or files to list.

  /A          Displays files with specified attributes.
  attributes   D  Directories                R  Read-only files
               H  Hidden files               A  Files ready for archiving
               S  System files               I  Not content indexed files
               L  Reparse Points             -  Prefix meaning not
  /B          Uses bare format (no heading information or summary).
  /C          Display the thousand separator in file sizes.  This is the
              default.  Use /-C to disable display of separator.
  /D          Same as wide but files are list sorted by column.
  /L          Uses lowercase.
  /N          New long list format where filenames are on the far right.
  /O          List by files in sorted order.
  sortorder    N  By name (alphabetic)       S  By size (smallest first)
               E  By extension (alphabetic)  D  By date/time (oldest first)
               G  Group directories first    -  Prefix to reverse order
  /P          Pauses after each screenful of information.
  /Q          Display the owner of the file.
  /R          Display alternate data streams of the file.
  /S          Displays files in specified directory and all subdirectories.
  /T          Controls which time field displayed or used for sorting
  timefield   C  Creation
              A  Last Access
              W  Last Written
  /W          Uses wide list format.
  /X          This displays the short names generated for non-8dot3 file
              names.  The format is that of /N with the short name inserted
              before the long name. If no short name is present, blanks are
              displayed in its place.
  /4          Displays four-digit years

Switches may be preset in the DIRCMD environment variable.  Override
preset switches by prefixing any switch with - (hyphen)--for example, /-W.

What is the len of the equivalent nested list?

len([[2,3,1,0], [2,3,1,0], [3,2,1,1]])

With the more general concept of shape, numpy developers choose to implement __len__ as the first dimension. Python maps len(obj) onto obj.__len__.

X.shape returns a tuple, which does have a len - which is the number of dimensions, X.ndim. X.shape[i] selects the ith dimension (a straight forward application of tuple indexing).

Here's how I test javascript using PhantomJS and Django:

mobile/test_no_js_errors.js:

var page = require('webpage').create(),
    system = require('system'),
    url = system.args[1],
    status_code;

page.onError = function (msg, trace) {
    console.log(msg);
    trace.forEach(function(item) {
        console.log('  ', item.file, ':', item.line);
    });
};

page.onResourceReceived = function(resource) {
    if (resource.url == url) {
        status_code = resource.status;
    }
};

page.open(url, function (status) {
    if (status == "fail" || status_code != 200) {
        console.log("Error: " + status_code + " for url: " + url);
        phantom.exit(1);
    }
    phantom.exit(0);
});

mobile/tests.py:

import subprocess
from django.test import LiveServerTestCase

class MobileTest(LiveServerTestCase):
    def test_mobile_js(self):
        args = ["phantomjs", "mobile/test_no_js_errors.js", self.live_server_url]
        result = subprocess.check_output(args)
        self.assertEqual(result, "")  # No result means no error

Run tests:

manage.py test mobile

Complete Binary Tree: All levels are completely filled except the lowest level and one main thing all the leaf elements must have left child. Strict Binary Tree: In this tree every non-leaf node has no child i.e. neither left nor right. Full Binary Tree: Every Node has either zero child or Two children (never having single child).

setting pk to None is better, sinse Django can correctly create a pk for you

object_copy = MyObject.objects.get(pk=...)
object_copy.pk = None
object_copy.save()

Just add not-null constraint

I had the same problem. I just added not-null constraint in xml mapping. It worked

<set name="phone" cascade="all" lazy="false" > 
   <key column="id" not-null="true" />
   <one-to-many class="com.practice.phone"/>
</set>

If you are working with Application Pool authentication (instead of IUSR), which you should, then this list of checks by Jean Sun is the very best I could find to deal with 401 errors in IIS:

Open IIS Manager, navigate to your website or application folder where the site is deployed to.

1. Open Advanced Settings (it's on the right hand Actions pane).
2. Note down the Application Pool name then close this window
3. Double click on the Authentication icon to open the authentication settings
4. Disable Windows Authentication
5. Right click on Anonymous Authentication and click Edit
6. Choose the Application pool identity radio button the click OK
7. Select the Application Pools node from IIS manager tree on left and select the Application Pool name you noted down in step 3
8. Right click and select Advanced Settings
9. Expand the Process Model settings and choose ApplicationPoolIdentityfrom the "Built-in account" drop down list then click OK.
10. Click OK again to save and dismiss the Application Pool advanced settings page
11. Open an Administrator command line (right click on the CMD icon and select "Run As Administrator". It'll be somewhere on your start menu, probably under Accessories.

12. Run the following command:

    icacls <path_to_site> /grant "IIS APPPOOL\<app_pool_name>"(CI)(OI)(M)
    

    For example:

    icacls C:\inetpub\wwwroot\mysite\ /grant "IIS APPPOOL\DEFAULTAPPPOOL":(CI)(OI)(M)
    

Especially steps 5. & 6. are often overlooked and rarely mentioned on the web.

The only proper way to put server side data into generated javascript code:

<?php $jsString= 'testing'; ?>
<html>
  <body>
    <script type="text/javascript">      
      var jsStringFromPhp=<?php echo json_encode($jsString); ?>;
      alert(jsStringFromPhp);
    </script>
  </body>
</html>

With simple quotes the content of your variable is not escaped against HTML and javascript, so it is vulnerable by XSS attacks...

For similar reasons I recommend to use document.createTextNode() instead of setting the innerHTML. Ofc. it is slower, but more secure...

This is a very strange request, and almost certainly something you'd never want to do in a real-world application, but from a purely academic standpoint it's an interesting challenge. With SQL Server 2005 you could use common table expressions and the row_number() functions and join on that:

with OrderedFoos as (
    select row_number() over (order by FooName) RowNum, *
    from Foos (nolock)
),
OrderedBars as (
    select row_number() over (order by BarName) RowNum, *
    from Bars (nolock)
)
select * 
from OrderedFoos f
    full outer join OrderedBars u on u.RowNum = f.RowNum

This works, but it's supremely silly and I offer it only as a "community wiki" answer because I really wouldn't recommend it.

Just thought i might add

RewriteEngine on
RewriteCond $1 !^(index\.php|resources|robots\.txt)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L,QSA] 

would be the .htaccess and be sure to edit your application/config.php variable in the following manner:

replace

$config['uri_protocol'] = “AUTO” 

with

$config['uri_protocol'] = “REQUEST_URI”

~ flips the bits in the value.

Why ~2 is -3 has to do with how numbers are represented bitwise. Numbers are represented as two's complement.

So, 2 is the binary value

00000010

And ~2 flips the bits so the value is now:

11111101

Which, is the binary representation of -3.

Under Linux PostgresQL is usually configured to allow the root user to login as the postgres superuser postgres from the shell (console or ssh).

$ psql -U postgres

Then you would just create a new database as usual:

CREATE ROLE myuser LOGIN password 'secret';
CREATE DATABASE mydatabase ENCODING 'UTF8' OWNER myuser;

This should work without touching pg_hba.conf. If you want to be able to do this using some GUI tool over the network - then you would need to mess with pg_hba.conf.

The following code will negate the enter key from being used to submit a form, but will still allow you to use the enter key in a textarea. You can edit it further depending on your needs.

<script type="text/javascript">
        function stopRKey(evt) {
          var evt = (evt) ? evt : ((event) ? event : null);
          var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
          if ((evt.keyCode == 13) && ((node.type=="text") || (node.type=="radio") || (node.type=="checkbox")) )  {return false;}
        }

        document.onkeypress = stopRKey;
</script> 

1. Presumably you are in the design of the table. If not: right click the table name - "Design".
2. Click the required column.
3. In "Column properties" (at the bottom), scroll to the "Identity Specification" section, expand it, then toggle "(Is Identity)" to "Yes".

Here's a compact way to do something different in all four cases:

if(empty($youtube)) {
    if(empty($link)) {
        # both empty
    } else {
        # only $youtube not empty
    }
} else {
    if(empty($link)) {
        # only $link empty
    } else {
        # both not empty
    }
}

If you want to use an expression instead, you can use ?: instead:

echo empty($youtube) ? ( empty($link) ? 'both empty' : 'only $youtube not empty' )
                     : ( empty($link) ? 'only $link empty' : 'both not empty' );

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

Make sure /webapps/ROOT file is there and it has all the icons, WEB-INF, and index.jsp is in the folder.

When you startup Tomcat, it will run this code in <Tomcat-Directory>/conf/web.xml directory:

<welcome-file-list>
   <welcome-file>index.jsp</welcome-file>
</welcome-file-list>

The location of index.jsp is in <Tomcat-Directory>/webapps/ROOT/index.jsp

Also, try running tomcat from the /bin directory using ./catalina.sh start instead of ./startup.sh. For some reason, ./startup.sh isn't as reliable.

Inside testing2.php you should print the $_POST array which contains all the data from the post. Also, $_POST['name'] should be available. For more info check $_POST on php.net.

I need to add that, if the Module name and the sub name is the same you have such issue. Consider change the Module name to mod_Test instead of "Test" which is the same as the sub.

Given a predefined m-by-n matrix size and the target value val, in your example:

m = 1;
n = 10;
val = 5;

there are currently 7 different approaches that come to my mind:

1) Using the repmat function (0.094066 seconds)

A = repmat(val,m,n)

2) Indexing on the undefined matrix with assignment (0.091561 seconds)

A(1:m,1:n) = val

3) Indexing on the target value using the ones function (0.151357 seconds)

A = val(ones(m,n))

4) Default initialization with full assignment (0.104292 seconds)

A = zeros(m,n);
A(:) = val

5) Using the ones function with multiplication (0.069601 seconds)

A = ones(m,n) * val

6) Using the zeros function with addition (0.057883 seconds)

A = zeros(m,n) + val

7) Using the repelem function (0.168396 seconds)

A = repelem(val,m,n)

After the description of each approach, between parentheses, its corresponding benchmark performed under Matlab 2017a and with 100000 iterations. The winner is the 6th approach, and this doesn't surprise me.

The explaination is simple: allocation generally produces zero-filled slots of memory... hence no other operations are performed except the addition of val to every member of the matrix, and on the top of that, input arguments sanitization is very short.

The same cannot be said for the 5th approach, which is the second fastest one because, despite the input arguments sanitization process being basically the same, on memory side three operations are being performed instead of two:

• the initial allocation
• the transformation of every element into 1
• the multiplication by val

[UPDATE] TL;DR pkg_resources is provided by either Distribute or setuptools.

[UPDATE 2] As announced at PyCon 2013, the Distribute and setuptools projects have re-merged. Distribute is now deprecated and you should just use the new current setuptools. Try this:

curl -O https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py
python ez_setup.py

Or, better, use a current pip as the high level interface and which will use setuptools under the covers.

[Longer answer for OP's specific problem]:

You don't say in your question but I'm assuming you upgraded from the Apple-supplied Python (2.5 on 10.5 or 2.6.1 on 10.6) or that you upgraded from a python.org Python 2.5. In any of those cases, the important point is that each Python instance has its own library, including its own site-packages library, which is where additional packages are installed. (And none of them use /usr/local/lib by default, by the way.) That means you'll need to install those additional packages you need for your new python 2.6. The easiest way to do this is to first ensure that the new python2.6 appears first on your search $PATH (that is, typing python2.6 invokes it as expected); the python2.6 installer should have modified your .bash_profile to put its framework bin directory at the front of $PATH. Then install easy_install using setuptools following the instructions there. The pkg_resources module is also automatically installed by this step.

Then use the newly-installed version of easy_install (or pip) to install ipython.

easy_install ipython

or

pip install ipython

It should automatically get installed to the correct site-packages location for that python instance and you should be good to go.

It looks like you are talking about a RESTful webservice.

http://en.wikipedia.org/wiki/Representational_State_Transfer

The .htaccess file does rewrite all URIs to point to one controller, but that is more detailed then you want to get at this point. You may want to look at Recess

It's a RESTful framework all in PHP

public static IEnumerable<T> ExecuteProcedure<T>(this SqlConnection connection,
    string storedProcedure, object parameters = null,
    int commandTimeout = 180) 
    {
        try
        {
            if (connection.State != ConnectionState.Open)
            {
                connection.Close();
                connection.Open();
            }

            if (parameters != null)
            {
                return connection.Query<T>(storedProcedure, parameters,
                    commandType: CommandType.StoredProcedure, commandTimeout: commandTimeout);
            }
            else
            {
                return connection.Query<T>(storedProcedure,
                    commandType: CommandType.StoredProcedure, commandTimeout: commandTimeout);
            }
        }
        catch (Exception ex)
        {
            connection.Close();
            throw ex;
        }
        finally
        {
            connection.Close();
        }

    }
}

var data = db.Connect.ExecuteProcedure<PictureModel>("GetPagePicturesById",
    new
    {
        PageId = pageId,
        LangId = languageId,
        PictureTypeId = pictureTypeId
    }).ToList();

This is an odd solution, but it worked for me.

I wanted to uninstall Visual Studio 2015 and do a clean install afterwards, but when I tried to remove it through the Control Panel, it was giving me a generic error.

I fixed it by deleting the Visual Studio 2015 folder in Program Files (x86). After that, the Control Panel uninstall worked fine.

If you need to reference a dynamically generated value you can also append query string paramters after the @URL.Action like so:

    var id = $(this).attr('id');
    var value = $(this).attr('value');
    $('#user_content').load('@Url.Action("UserDetails","User")?Param1=' + id + "&Param2=" + value);


    public ActionResult Details( int id, string value )
    {
        var model = GetFooModel();
        if (Request.IsAjaxRequest())
        {
            return PartialView( "UserDetails", model );
        }
        return View(model);
    }

TLDR;

use location.href or better use window.location.href;

However if you read this you will gain undeniable proof.

The truth is it's fine to use but why do things that are questionable. You should take the higher road and just do it the way that it probably should be done.

location = "#/mypath/otherside"
var sections = location.split('/')

This code is perfectly correct syntax-wise, logic wise, type-wise you know the only thing wrong with it?

it has location instead of location.href

what about this

var mystring = location = "#/some/spa/route"

what is the value of mystring? does anyone really know without doing some test. No one knows what exactly will happen here. Hell I just wrote this and I don't even know what it does. location is an object but I am assigning a string will it pass the string or pass the location object. Lets say there is some answer to how this should be implemented. Can you guarantee all browsers will do the same thing?

This i can pretty much guess all browsers will handle the same.

var mystring = location.href = "#/some/spa/route"

What about if you place this into typescript will it break because the type compiler will say this is suppose to be an object?

This conversation is so much deeper than just the location object however. What this conversion is about what kind of programmer you want to be?

If you take this short-cut, yea it might be okay today, ye it might be okay tomorrow, hell it might be okay forever, but you sir are now a bad programmer. It won't be okay for you and it will fail you.

There will be more objects. There will be new syntax.

You might define a getter that takes only a string but returns an object and the worst part is you will think you are doing something correct, you might think you are brilliant for this clever method because people here have shamefully led you astray.

var Person.name = {first:"John":last:"Doe"}
console.log(Person.name) // "John Doe"

With getters and setters this code would actually work, but just because it can be done doesn't mean it's 'WISE' to do so.

Most people who are programming love to program and love to get better. Over the last few years I have gotten quite good and learn a lot. The most important thing I know now especially when you write Libraries is consistency and predictability.

Do the things that you can consistently do.

+"2" <-- this right here parses the string to a number. should you use it? or should you use parseInt("2")?

what about var num =+"2"?

From what you have learn, from the minds of stackoverflow i am not too hopefully.

If you start following these 2 words consistent and predictable. You will know the right answer to a ton of questions on stackoverflow.

Let me show you how this pays off. Normally I place ; on every line of javascript i write. I know it's more expressive. I know it's more clear. I have followed my rules. One day i decided not to. Why? Because so many people are telling me that it is not needed anymore and JavaScript can do without it. So what i decided to do this. Now because I have become sure of my self as a programmer (as you should enjoy the fruit of mastering a language) i wrote something very simple and i didn't check it. I erased one comma and I didn't think I needed to re-test for such a simple thing as removing one comma.

I wrote something similar to this in es6 and babel

var a = "hello world"
(async function(){
  //do work
})()

This code fail and took forever to figure out. For some reason what it saw was

var a = "hello world"(async function(){})()

hidden deep within the source code it was telling me "hello world" is not a function.

For more fun node doesn't show the source maps of transpiled code.

Wasted so much stupid time. I was presenting to someone as well about how ES6 is brilliant and then I had to start debugging and demonstrate how headache free and better ES6 is. Not convincing is it.

I hope this answered your question. This being an old question it's more for the future generation, people who are still learning.

Question when people say it doesn't matter either way works. Chances are a wiser more experienced person will tell you other wise.

what if someone overwrite the location object. They will do a shim for older browsers. It will get some new feature that needs to be shimmed and your 3 year old code will fail.

My last note to ponder upon.

Writing clean, clear purposeful code does something for your code that can't be answer with right or wrong. What it does is it make your code an enabler.

You can use more things plugins, Libraries with out fear of interruption between the codes.

for the record. use

window.location.href

clearfix is the same as overflow:hidden. Both clear floated children of the parent, but clearfix will not cut off the element which overflow to it's parent. It also works in IE8 & above.

There is no need to define "." in content & .clearfix. Just write like this:

.clr:after {
    clear: both;
    content: "";
    display: block;
}

HTML

<div class="parent clr"></div>

Read these links for more

http://css-tricks.com/snippets/css/clear-fix/,

What methods of ‘clearfix’ can I use?

Try this:

((Button)btn).getCompoundDrawables()[0].setAlpha(btn.isEnabled() ? 255 : 100);

SpringBoot2.0 ,I resolve it by follow code:

@Bean public ObjectMapper objectMapper() {
 return new ObjectMapper().disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);}

Default values are only used if the arguments are not specified. In your case you did specify the arguments - both were supplied, with a value of NULL. (Yes, in this case NULL is considered a real value :-). Try:

EXEC TEST()

Share and enjoy.

Addendum: The default values for procedure parameters are certainly buried in a system table somewhere (see the SYS.ALL_ARGUMENTS view), but getting the default value out of the view involves extracting text from a LONG field, and is probably going to prove to be more painful than it's worth. The easy way is to add some code to the procedure:

CREATE OR REPLACE PROCEDURE TEST(X IN VARCHAR2 DEFAULT 'P',
                                 Y IN NUMBER DEFAULT 1)
AS
  varX VARCHAR2(32767) := NVL(X, 'P');
  varY NUMBER          := NVL(Y, 1);
BEGIN
  DBMS_OUTPUT.PUT_LINE('X=' || varX || ' -- ' || 'Y=' || varY);
END TEST;

Powershell handles tasks like this fairly handily:

$productCode = (gwmi win32_product | `
                ? { $_.Name -Like "<PRODUCT NAME HERE>*" } | `
                % { $_.IdentifyingNumber } | `
                Select-Object -First 1)

You can then use it to get the uninstall information as well:

$wow = ""
$is32BitInstaller = $True # or $False

if($is32BitInstaller -and [System.Environment]::Is64BitOperatingSystem) 
{
    $wow = "\Wow6432Node" 
}

$regPath = "HKEY_LOCAL_MACHINE\SOFTWARE$wow\Microsoft\Windows\CurrentVersion\Uninstall"

dir "HKLM:\SOFTWARE$wow\Microsoft\Windows\CurrentVersion\Uninstall" | `
? { $_.Name -Like "$regPath\$productCode"  }

You should prefer the outer version over the inner version. This is just a specific version of the rule, move anything outside the loop that you can move outside the loop. Depending on the IL compiler and JIT compiler your two versions may or may not end up with different performance characteristics.

On another note you should probably look at float.TryParse or Convert.ToFloat.

Obviously, the syntax are completely different (Groovy is closest to Java), but I suppose that is not what you are asking for.

If you are interested in using them to script a Java application, Scala is probably not a good choice, as there is no easy way to evaluate it from Java, whereas Groovy is especially suited for that purpose.

Besides put all your assets in the public folder, you can use the HTML::image() Method, and only needs an argument which is the path to the image, relative on the public folder, as well:

{{ HTML::image('imgs/picture.jpg') }}

Which generates the follow HTML code:

<img src="http://localhost:8000/imgs/picture.jpg">

The link to other elements of HTML::image() Method: http://laravel-recipes.com/recipes/185/generating-an-html-image-element

For Spark 1.5 or later, you can use the functions package:

from pyspark.sql.functions import *
newDf = df.withColumn('address', regexp_replace('address', 'lane', 'ln'))

Quick explanation:

• The function withColumn is called to add (or replace, if the name exists) a column to the data frame.
• The function regexp_replace will generate a new column by replacing all substrings that match the pattern.

If both your client and service is installed on the same machine, and you are facing this problem with the correct (read: tried and tested elsewhere) client and service configurations, then this might be worth checking.

Check host entries in your host file

%windir%/system32/drivers/etc/hosts

Check to see if you are accessing your web service with a hostname, and that same hostname has been associated with an IP address in the hosts file mentioned above. If yes, NTLM/Windows credentials will NOT be passed from the client to the service as any request for that hostname will be routed again at the machine level.

Try either of the following

• Remove the host entry of that hostname from the hosts file
OR
• If removing host entry is not possible, then try accessing your service with another hostname. You might also try with IP address instead of hostname

Edit: Somehow the above situation is relevant on a load-balanced scenario. However, if removing the host entries is not possible, then disabling loop back check on the machine will help. Refer method 2 in the article https://support.microsoft.com/en-us/kb/896861

ProxyWs proxy = (ProxyWs) factory.create();
Client client = ClientProxy.getClient(proxy);
HTTPConduit http = (HTTPConduit) client.getConduit();
HTTPClientPolicy httpClientPolicy = new HTTPClientPolicy();
httpClientPolicy.setConnectionTimeout(0);
httpClientPolicy.setReceiveTimeout(0);
http.setClient(httpClientPolicy);

This worked for me.

You can also use TempVars - note '!' syntax is essential

You can make a numpy array immutable and use the first element:

numpyarrayname[0] = "write once"

then:

numpyarrayname.setflags(write=False)

or

numpyarrayname.flags.writeable = False

Building on this comment I wrote a one-liner to hit the Github Markdown API using curl and jq.

Paste this bash function onto the command line or into your ~/.bash_profile:

mdsee(){ 
    HTMLFILE="$(mktemp -u).html"
    cat "$1" | \
      jq --slurp --raw-input '{"text": "\(.)", "mode": "markdown"}' | \
      curl -s --data @- https://api.github.com/markdown > "$HTMLFILE"
    echo $HTMLFILE
    open "$HTMLFILE"
}

And then to see the rendered HTML in-browser run:

mdsee readme.md

Replace open "$HTMLFILE" with lynx "$HTMLFILE" if you need a pure terminal solution.

A REGEXP_LIKE will do a case-insensitive regexp search.

select * from Users where Regexp_Like (User_Name, 'karl|anders|leif','i')

This will be executed as a full table scan - just as the LIKE or solution, so the performance will be really bad if the table is not small. If it's not used often at all, it might be ok.

If you need some kind of performance, you will need Oracle Text (or some external indexer).

To get substring indexing with Oracle Text you will need a CONTEXT index. It's a bit involved as it's made for indexing large documents and text using a lot of smarts. If you have particular needs, such as substring searches in numbers and all words (including "the" "an" "a", spaces, etc) , you need to create custom lexers to remove some of the smart stuff...

If you insert a lot of data, Oracle Text will not make things faster, especially if you need the index to be updated within the transactions and not periodically.

Here is how you can do it :

public static void main(String[] args) {
    // TODO Auto-generated method stub
    int x = 3;
    int y = 2;
    Float fX = new Float(x);
    float res = fX.floatValue()/y;
    System.out.println("res = "+res);
}

See you !

If the keystore is for tomcat then, after creating the keystore with the above answers, you must add a final step to create the "tomcat" alias for the key:

keytool -changealias -alias "1" -destalias "tomcat" -keystore keystore-file.jks

You can check the result with:

keytool -list -keystore keystore-file.jks -v

public static List<String> removeDuplicateElements(List<String> array){
    List<String> temp = new ArrayList<String>();
    List<Integer> count = new ArrayList<Integer>();
    for (int i=0; i<array.size()-2; i++){
        for (int j=i+1;j<array.size()-1;j++)
            {
                if (array.get(i).compareTo(array.get(j))==0) {
                    count.add(i);
                    int kk = i;
                }
            }
        }
        for (int i = count.size()+1;i>0;i--) {
            array.remove(i);
        }
        return array;
    }
}

We used this:

<meta http-equiv="Content-Security-Policy" content="default-src gap://ready file://* *; style-src 'self' http://* https://* 'unsafe-inline'; script-src 'self' http://* https://* 'unsafe-inline' 'unsafe-eval'">

If you're looking for a way to immutably change the collection (as I was when I found your question), you might take a look at immutability-helper, a library forked from the original React util. In your case, you would accomplish what you mentioned via the following:

var update = require('immutability-helper')
var arr = [{id: 1, name: "Person 1"}, {id:2, name:"Person 2"}]
var newArray = update(arr, { 0: { name: { $set: 'New Name' } } })
//=> [{id: 1, name: "New Name"}, {id:2, name:"Person 2"}]

Swift 3.

// Remove all cache 
URLCache.shared.removeAllCachedResponses()

// Delete any associated cookies     
if let cookies = HTTPCookieStorage.shared.cookies {
    for cookie in cookies {
        HTTPCookieStorage.shared.deleteCookie(cookie)
    }
}

Its best practice to have TOP 1 1 always.

What if I use SELECT 1 -> If condition matches more than one record then your query will fetch all the columns records and returns 1.

What if I use SELECT TOP 1 1 -> If condition matches more than one record also, it will just fetch the existence of any row (with a self 1-valued column) and returns 1.

IF EXISTS (SELECT TOP 1 1 FROM tblGLUserAccess WHERE GLUserName ='xxxxxxxx') 
BEGIN
   SELECT 1 
END
ELSE
BEGIN
    SELECT 2
END

Moving to an existing branch

If you want to move your commits to an existing branch, it will look like this:

git checkout existingbranch
git merge master
git checkout master
git reset --hard HEAD~3 # Go back 3 commits. You *will* lose uncommitted work.
git checkout existingbranch

You can store uncommitted edits to your stash before doing this, using git stash. Once complete, you can retrieve the stashed uncommitted edits with git stash pop

Moving to a new branch

WARNING: This method works because you are creating a new branch with the first command: git branch newbranch. If you want to move commits to an existing branch you need to merge your changes into the existing branch before executing git reset --hard HEAD~3 (see Moving to an existing branch above). If you don't merge your changes first, they will be lost.

Unless there are other circumstances involved, this can be easily done by branching and rolling back.

# Note: Any changes not committed will be lost.
git branch newbranch      # Create a new branch, saving the desired commits
git reset --hard HEAD~3   # Move master back by 3 commits (Make sure you know how many commits you need to go back)
git checkout newbranch    # Go to the new branch that still has the desired commits

But do make sure how many commits to go back. Alternatively, you can instead of HEAD~3, simply provide the hash of the commit (or the reference like origin/master) you want to "revert back to" on the master (/current) branch, e.g:

git reset --hard a1b2c3d4

*1 You will only be "losing" commits from the master branch, but don't worry, you'll have those commits in newbranch!

WARNING: With Git version 2.0 and later, if you later git rebase the new branch upon the original (master) branch, you may need an explicit --no-fork-point option during the rebase to avoid losing the carried-over commits. Having branch.autosetuprebase always set makes this more likely. See John Mellor's answer for details.

The two question marks (??) indicate that its a Coalescing operator.

Coalescing operator returns the first NON-NULL value from a chain. You can see this youtube video which demonstrates the whole thing practically.

But let me add more to what the video says.

If you see the English meaning of coalescing it says “consolidate together”. For example below is a simple coalescing code which chains four strings.

So if str1 is null it will try str2, if str2 is null it will try str3 and so on until it finds a string with a non-null value.

string final = str1 ?? str2 ?? str3 ?? str4;

In simple words Coalescing operator returns the first NON-NULL value from a chain.

Pandas 0.23+

Use pandas.Series.dt.day_name(), since pandas.Timestamp.weekday_name has been deprecated:

import pandas as pd


df = pd.DataFrame({'my_dates':['2015-01-01','2015-01-02','2015-01-03'],'myvals':[1,2,3]})
df['my_dates'] = pd.to_datetime(df['my_dates'])

df['day_of_week'] = df['my_dates'].dt.day_name()

Output:

    my_dates  myvals day_of_week
0 2015-01-01       1    Thursday
1 2015-01-02       2      Friday
2 2015-01-03       3    Saturday

Pandas 0.18.1+

As user jezrael points out below, dt.weekday_name was added in version 0.18.1 Pandas Docs

import pandas as pd

df = pd.DataFrame({'my_dates':['2015-01-01','2015-01-02','2015-01-03'],'myvals':[1,2,3]})
df['my_dates'] = pd.to_datetime(df['my_dates'])
df['day_of_week'] = df['my_dates'].dt.weekday_name

Output:

    my_dates  myvals day_of_week
0 2015-01-01       1    Thursday
1 2015-01-02       2      Friday
2 2015-01-03       3    Saturday

Original Answer:

Use this:

http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.dt.dayofweek.html

See this:

Get weekday/day-of-week for Datetime column of DataFrame

If you want a string instead of an integer do something like this:

import pandas as pd

df = pd.DataFrame({'my_dates':['2015-01-01','2015-01-02','2015-01-03'],'myvals':[1,2,3]})
df['my_dates'] = pd.to_datetime(df['my_dates'])
df['day_of_week'] = df['my_dates'].dt.dayofweek

days = {0:'Mon',1:'Tues',2:'Weds',3:'Thurs',4:'Fri',5:'Sat',6:'Sun'}

df['day_of_week'] = df['day_of_week'].apply(lambda x: days[x])

Output:

    my_dates  myvals day_of_week
0 2015-01-01       1       Thurs
1 2015-01-02       2         Fri
2 2015-01-01       3       Thurs

Given a regular expression of (foobar) you can reference the first group using $1 and so on if you have more groups in the replace input field.

You can just add style="min-height:100vh" to your page content conteiner and place footer in another conteiner

This can be done by using:

Response.Redirect("http://localhost/YourControllerName/ActionMethodName?querystring1=querystringvalue1&querystring2=querystringvalue2&querystring3=querystringvalue3");

Simply using

input("Press Enter to continue...")

will cause a SyntaxError: expected EOF while parsing.

Simple fix use:

try:
    input("Press enter to continue")
except SyntaxError:
    pass

At ms end Rx lev ranges 0 to -120 dbm Mean antenna power which received at ms end alway less than 1mW.

Thats why it always -ve.

if (str.indexOf(' ') >= 0)

would be (slightly) faster.

NOTE: This answer talks about the Entity Framework's DbContext, but it is applicable to any sort of Unit of Work implementation, such as LINQ to SQL's DataContext, and NHibernate's ISession.

Let start by echoing Ian: Having a single DbContext for the whole application is a Bad Idea. The only situation where this makes sense is when you have a single-threaded application and a database that is solely used by that single application instance. The DbContext is not thread-safe and and since the DbContext caches data, it gets stale pretty soon. This will get you in all sorts of trouble when multiple users/applications work on that database simultaneously (which is very common of course). But I expect you already know that and just want to know why not to just inject a new instance (i.e. with a transient lifestyle) of the DbContext into anyone who needs it. (for more information about why a single DbContext -or even on context per thread- is bad, read this answer).

Let me start by saying that registering a DbContext as transient could work, but typically you want to have a single instance of such a unit of work within a certain scope. In a web application, it can be practical to define such a scope on the boundaries of a web request; thus a Per Web Request lifestyle. This allows you to let a whole set of objects operate within the same context. In other words, they operate within the same business transaction.

If you have no goal of having a set of operations operate inside the same context, in that case the transient lifestyle is fine, but there are a few things to watch:

• Since every object gets its own instance, every class that changes the state of the system, needs to call _context.SaveChanges() (otherwise changes would get lost). This can complicate your code, and adds a second responsibility to the code (the responsibility of controlling the context), and is a violation of the Single Responsibility Principle.
• You need to make sure that entities [loaded and saved by a DbContext] never leave the scope of such a class, because they can't be used in the context instance of another class. This can complicate your code enormously, because when you need those entities, you need to load them again by id, which could also cause performance problems.
• Since DbContext implements IDisposable, you probably still want to Dispose all created instances. If you want to do this, you basically have two options. You need to dispose them in the same method right after calling context.SaveChanges(), but in that case the business logic takes ownership of an object it gets passed on from the outside. The second option is to Dispose all created instances on the boundary of the Http Request, but in that case you still need some sort of scoping to let the container know when those instances need to be Disposed.

Another option is to not inject a DbContext at all. Instead, you inject a DbContextFactory that is able to create a new instance (I used to use this approach in the past). This way the business logic controls the context explicitly. If might look like this:

public void SomeOperation()
{
    using (var context = this.contextFactory.CreateNew())
    {
        var entities = this.otherDependency.Operate(
            context, "some value");

        context.Entities.InsertOnSubmit(entities);

        context.SaveChanges();
    }
}

The plus side of this is that you manage the life of the DbContext explicitly and it is easy to set this up. It also allows you to use a single context in a certain scope, which has clear advantages, such as running code in a single business transaction, and being able to pass around entities, since they originate from the same DbContext.

The downside is that you will have to pass around the DbContext from method to method (which is termed Method Injection). Note that in a sense this solution is the same as the 'scoped' approach, but now the scope is controlled in the application code itself (and is possibly repeated many times). It is the application that is responsible for creating and disposing the unit of work. Since the DbContext is created after the dependency graph is constructed, Constructor Injection is out of the picture and you need to defer to Method Injection when you need to pass on the context from one class to the other.

Method Injection isn't that bad, but when the business logic gets more complex, and more classes get involved, you will have to pass it from method to method and class to class, which can complicate the code a lot (I've seen this in the past). For a simple application, this approach will do just fine though.

Because of the downsides, this factory approach has for bigger systems, another approach can be useful and that is the one where you let the container or the infrastructure code / Composition Root manage the unit of work. This is the style that your question is about.

By letting the container and/or the infrastructure handle this, your application code is not polluted by having to create, (optionally) commit and Dispose a UoW instance, which keeps the business logic simple and clean (just a Single Responsibility). There are some difficulties with this approach. For instance, were do you Commit and Dispose the instance?

Disposing a unit of work can be done at the end of the web request. Many people however, incorrectly assume that this is also the place to Commit the unit of work. However, at that point in the application, you simply can't determine for sure that the unit of work should actually be committed. e.g. If the business layer code threw an exception that was caught higher up the callstack, you definitely don't want to Commit.

The real solution is again to explicitly manage some sort of scope, but this time do it inside the Composition Root. Abstracting all business logic behind the command / handler pattern, you will be able to write a decorator that can be wrapped around each command handler that allows to do this. Example:

class TransactionalCommandHandlerDecorator<TCommand>
    : ICommandHandler<TCommand>
{
    readonly DbContext context;
    readonly ICommandHandler<TCommand> decorated;

    public TransactionCommandHandlerDecorator(
        DbContext context,
        ICommandHandler<TCommand> decorated)
    {
        this.context = context;
        this.decorated = decorated;
    }

    public void Handle(TCommand command)
    {
        this.decorated.Handle(command);

        context.SaveChanges();
    } 
}

This ensures that you only need to write this infrastructure code once. Any solid DI container allows you to configure such a decorator to be wrapped around all ICommandHandler<T> implementations in a consistent manner.

You can use ExtendedXmlSerializer to serialize and deserialize.

Instalation You can install ExtendedXmlSerializer from nuget or run the following command:

Install-Package ExtendedXmlSerializer

Serialization:

ExtendedXmlSerializer serializer = new ExtendedXmlSerializer();
var obj = new Message();
var xml = serializer.Serialize(obj);

Deserialization

var obj2 = serializer.Deserialize<Message>(xml);

Standard XML Serializer in .NET is very limited.

• Does not support serialization of class with circular reference or class with interface property,
• Does not support Dictionaries,
• There is no mechanism for reading the old version of XML,
• If you want create custom serializer, your class must inherit from IXmlSerializable. This means that your class will not be a POCO class,
• Does not support IoC.

ExtendedXmlSerializer can do this and much more.

ExtendedXmlSerializer support .NET 4.5 or higher and .NET Core. You can integrate it with WebApi and AspCore.

Please stop all services MySQL with following command /etc/init.d/mysqld stop After it use this

mysqld_safe --skip-grant-tables

its may work properly

Here are a couple of things missing in the previous answers:

1. Set header in your PHP:

   header('Content-type: application/json');
   echo json_encode($array);
   

2. json_encode() can return a JavaScript array instead of JavaScript object, see:
   Returning JSON from a PHP Script
   This could be important to know in some cases as arrays and objects are not the same.

if grep -q [string] [filename]
then
    [whatever action]
fi

Example

if grep -q 'my cat is in a tree' /tmp/cat.txt
then
    mkdir cat
fi

Use Gradle to build your project, then the jar is within the build file. Here is a Stack Overflow link on how to build .jar files with Gradle.

Java project with Gradle and building jar file in Intellij IDEA - how to?

I have done something like this and it's working for me

$('#fileInput').val(null);