Simply pass the BSTR directly to the wstring constructor, it is compatible with a wchar_t*:

BSTR btest = SysAllocString(L"Test");
assert(btest != NULL);
std::wstring wtest(btest);
assert(0 == wcscmp(wtest.c_str(), btest));

Converting BSTR to std::string requires a conversion to char* first. That's lossy since BSTR stores a utf-16 encoded Unicode string. Unless you want to encode in utf-8. You'll find helper methods to do this, as well as manipulate the resulting string, in the ICU library.

Elaborating on the answer provided by Brian R. Bondy: Here's an example that shows why you can't simply size the output buffer to the number of wide characters in the source string:

#include <windows.h>
#include <stdio.h>
#include <wchar.h>
#include <string.h>

/* string consisting of several Asian characters */
wchar_t wcsString[] = L"\u9580\u961c\u9640\u963f\u963b\u9644";

int main() 
{

    size_t wcsChars = wcslen( wcsString);

    size_t sizeRequired = WideCharToMultiByte( 950, 0, wcsString, -1, 
                                               NULL, 0,  NULL, NULL);

    printf( "Wide chars in wcsString: %u\n", wcsChars);
    printf( "Bytes required for CP950 encoding (excluding NUL terminator): %u\n",
             sizeRequired-1);

    sizeRequired = WideCharToMultiByte( CP_UTF8, 0, wcsString, -1,
                                        NULL, 0,  NULL, NULL);
    printf( "Bytes required for UTF8 encoding (excluding NUL terminator): %u\n",
             sizeRequired-1);
}

And the output:

Wide chars in wcsString: 6
Bytes required for CP950 encoding (excluding NUL terminator): 12
Bytes required for UTF8 encoding (excluding NUL terminator): 18

Two reasons for Stale element

1. An element that is found on a web page referenced as a WebElement in WebDriver then the DOM changes (probably due to JavaScript functions) that WebElement goes stale.

2. The element has been deleted entirely.

When you try to interact with the staled WebElement[any above case], the StaleElementException is thrown.

How to avoid/resolve Stale Exception?

1. Storing locators to your elements instead of references

driver = webdriver.Firefox();
driver.get("http://www.github.com");
search_input = lambda: driver.find_element_by_name('q');
search_input().send_keys('hello world\n'); 
time.sleep(5);


search_input().send_keys('hello frank\n') // no stale element exception

2. Leverage hooks in the JS libraries used

   # Using Jquery queue to get animation queue length.
    animationQueueIs = """
    return $.queue( $("#%s")[0], "fx").length;
    """ % element_id
    wait_until(lambda: self.driver.execute_script(animationQueueIs)==0)

3. Moving your actions into JavaScript injection

 self.driver.execute_script("$(\"li:contains('Narendra')\").click()");

4. Proactively wait for the element to go stale

  # Wait till the element goes stale, this means the list has updated
  wait_until(lambda: is_element_stale(old_link_reference))

This solution, which worked for me, I have mentioned here if you have any additional scenario, which worked for you then comment below

For multiple headers do as follow:

import urllib2
req = urllib2.Request('http://www.example.com/')
req.add_header('param1', '212212')
req.add_header('param2', '12345678')
req.add_header('other_param1', 'sample')
req.add_header('other_param2', 'sample1111')
req.add_header('and_any_other_parame', 'testttt')
resp = urllib2.urlopen(req)
content = resp.read()

You can use jquery-validate.js . The following is the code snippet from jquery-validate.js.

// ajax mode: abort
// usage: $.ajax({ mode: "abort"[, port: "uniqueport"]});
// if mode:"abort" is used, the previous request on that port (port can be undefined) is aborted via XMLHttpRequest.abort()

var pendingRequests = {},
    ajax;
// Use a prefilter if available (1.5+)
if ( $.ajaxPrefilter ) {
    $.ajaxPrefilter(function( settings, _, xhr ) {
        var port = settings.port;
        if ( settings.mode === "abort" ) {
            if ( pendingRequests[port] ) {
                pendingRequests[port].abort();
            }
            pendingRequests[port] = xhr;
        }
    });
} else {
    // Proxy ajax
    ajax = $.ajax;
    $.ajax = function( settings ) {
        var mode = ( "mode" in settings ? settings : $.ajaxSettings ).mode,
            port = ( "port" in settings ? settings : $.ajaxSettings ).port;
        if ( mode === "abort" ) {
            if ( pendingRequests[port] ) {
                pendingRequests[port].abort();
            }
            pendingRequests[port] = ajax.apply(this, arguments);
            return pendingRequests[port];
        }
        return ajax.apply(this, arguments);
    };
}

So that you just only need to set the parameter mode to abort when you are making ajax request.

Ref:https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.14.0/jquery.validate.js

<!DOCTYPE html>
<html>
<body>
<button onclick="myFunction()">Try it</button>

<script>
function myFunction()
{
    alert("Hello!");
}
</script>

</body>
</html>

Copy Paste this in an HTML file and run in any browser , this should show an alert using javascript.

Image upload using ajax and check image format and upload max size   

<form class='form-horizontal' method="POST"  id='document_form' enctype="multipart/form-data">
                                    <div class='optionBox1'>
                                        <div class='row inviteInputWrap1 block1'>
                                            <div class='col-3'>
                                                <label class='col-form-label'>Name</label>
                                                <input type='text' class='form-control form-control-sm' name='name[]' id='name' Value=''>
                                            </div>
                                            <div class='col-3'>
                                                <label class='col-form-label'>File</label>
                                                <input type='file' class='form-control form-control-sm' name='file[]' id='file' Value=''>
                                            </div>
                                            <div class='col-3'>
                                                <span class='deleteInviteWrap1 remove1 d-none'>
                                                    <i class='fas fa-trash'></i>
                                                </span>
                                            </div>
                                        </div>
                                        <div class='row'>
                                             <div class='col-8 pl-3 pb-4 mt-4'>
                                                <span class='btn btn-info add1 pr-3'>+ Add More</span>
                                                 <button class='btn btn-primary'>Submit</button> 
                                            </div>
                                        </div>
                                    </div>
                                    </form>     
                                    
                                    </div>  
                      
    
      $.validator.setDefaults({
       submitHandler: function (form) 
         {
               $.ajax({
                    url : "action1.php",
                    type : "POST",
                    data : new FormData(form),
                    mimeType: "multipart/form-data",
                    contentType: false,
                    cache: false,
                    dataType:'json',
                    processData: false,
                    success: function(data)
                    {
                        if(data.status =='success')
                            {
                                 swal("Document has been successfully uploaded!", {
                                    icon: "success",
                                 });
                                 setTimeout(function(){
                                    window.location.reload(); 
                                },1200);
                            }
                            else
                            {
                                swal('Oh noes!', "Error in document upload. Please contact to administrator", "error");
                            }   
                    },
                    error:function(data)
                    {
                        swal ( "Ops!" ,  "error in document upload." ,  "error" );
                    }
                });
            }
      });
    
      $('#document_form').validate({
        rules: {
            "name[]": {
              required: true
          },
          "file[]": {
              required: true,
              extension: "jpg,jpeg,png,pdf,doc",
              filesize :2000000 
          }
        },
        messages: {
            "name[]": {
            required: "Please enter name"
          },
          "file[]": {
            required: "Please enter file",
            extension :'Please upload only jpg,jpeg,png,pdf,doc'
          }
        },
        errorElement: 'span',
        errorPlacement: function (error, element) {
          error.addClass('invalid-feedback');
          element.closest('.col-3').append(error);
        },
        highlight: function (element, errorClass, validClass) {
          $(element).addClass('is-invalid');
        },
        unhighlight: function (element, errorClass, validClass) {
          $(element).removeClass('is-invalid');
        }
      });
    
      $.validator.addMethod('filesize', function(value, element, param) {
         return this.optional(element) || (element.files[0].size <= param)
        }, 'File size must be less than 2 MB');

This may help

$formattedweddingdate =date('d-m-Y',strtotime($weddingdate));

@Adrian's answer is perfectly suitable, I just wanted to share another way of achieving the same result:

select nvl(a.id, b.id)
from a full outer join b on a.id = b.id
order by b.id;

Try and override bootstrap's:

 .modal {
position: fixed;

With:

.modal {
position: absolute;

It worked for me.

NSIntegers are not objects, you cast them to long, in order to match the current 64-bit architectures' definition:

NSString *inStr = [NSString stringWithFormat: @"%ld", (long)month];

desc keyspaces will do it for you.

I think I wrote an elegant solution to this problem by using namespaces. In my case, the inner class does not need to know his parent class (like the static inner class in Java). As an example I made a class called 'User' and a subclass called 'Type', used as a reference for the user types (ADMIN, OTHERS) in my example. Regards.

User.php (User class file)

<?php
namespace
{   
    class User
    {
        private $type;

        public function getType(){ return $this->type;}
        public function setType($type){ $this->type = $type;}
    }
}

namespace User
{
    class Type
    {
        const ADMIN = 0;
        const OTHERS = 1;
    }
}
?>

Using.php (An example of how to call the 'subclass')

<?php
    require_once("User.php");

    //calling a subclass reference:
    echo "Value of user type Admin: ".User\Type::ADMIN;
?>

This is basically Muhammad Saqib's answer except two diffs:

1: Adds width and height function parameters.

2: This is a small nuance which can be ignored... Saying 'As Bitmap', instead of 'As Image'. 'As Image' does work just fine. I just prefer to match Return types. See Image VS Bitmap Class.

Public Shared Function ResizeImage(ByVal InputBitmap As Bitmap, width As Integer, height As Integer) As Bitmap
    Return New Bitmap(InputImage, New Size(width, height))
End Function

Ex.

Dim someimage As New Bitmap("C:\somefile")
someimage = ResizeImage(someimage,800,600)

Another cause of this can be including a header that depends on windows.h, before including windows.h.

In my case I included xinput.h before windows.h and got this error. Swapping the order solved the problem.

Fixed this without having to change anything related to TSL/SSL.

I was trying to see if the same thing was happening to pip, and saw that pip was broken. Did some digging and realized it's probably caused by Homebrew deleted python@2 on February 1st, 2020.

Running brew uninstall python@2 to delete python2 installed by Homebrew.

Destroyed the virtual env created using python3 and created a new one.
pip3 installing works fine again.

In some developer-friendly ROMs you could just enable Root Access in Settings > Developer option > Root access. After that adb root becomes available. Unfortunately it does not work for most stock ROMs on the market.

In [1]: df
Out[1]:
   data
0     1
1     2
2     3
3     4

You want to apply a function that conditionally returns a value based on the selected dataframe column.

In [2]: df['data'].apply(lambda x: 'true' if x <= 2.5 else 'false')
Out[2]:
0     true
1     true
2    false
3    false
Name: data

You can then assign that returned column to a new column in your dataframe:

In [3]: df['desired_output'] = df['data'].apply(lambda x: 'true' if x <= 2.5 else 'false')

In [4]: df
Out[4]:
   data desired_output
0     1           true
1     2           true
2     3          false
3     4          false

 1. show collections; // Display all collections
 2. show tables     // Display all collections
 3. db.getCollectionNames();   // Return array of collection. Example :[ "orders", "system.profile" ]

Detailed information for every collection:

db.runCommand( { listCollections: 1.0, authorizedCollections: true, nameOnly: true } )

• For users with the required access (privileges that grant listCollections action on the database), the method lists the names of all collections for the database.
• For users without the required access, the method lists only the collections for which the users has privileges. For example, if a user has find on a specific collection in a database, the method would return just that collection.

To list collections list based on a search string.

db.getCollectionNames().filter(function (CollectionName) { return /<Search String>/.test(CollectionName) })

Example: Find all collection having "import" in the name

db.getCollectionNames().filter(function (CollectionName) { return /import/.test(CollectionName) })

When I used CocoaPods to develop iOS projects, there is a .xcworkspace file, you need to open the project with .xcworkspace file related with CocoaPods.

But when you Show Package Contents with .xcworkspace file, you will find the contents.xcworkspacedata file.

<?xml version="1.0" encoding="UTF-8"?>
<Workspace
   version = "1.0">
   <FileRef
      location = "group:BluetoothColorLamp24G.xcodeproj">
   </FileRef>
   <FileRef
      location = "group:Pods/Pods.xcodeproj">
   </FileRef>
</Workspace>

pay attention to this line:

location = "group:BluetoothColorLamp24G.xcodeproj"

The .xcworkspace file has reference with the .xcodeproj file.

Development Environment:

macOS 10.14
Xcode 10.1

KEY is normally a synonym for INDEX. The key attribute PRIMARY KEY can also be specified as just KEY when given in a column definition. This was implemented for compatibility with other database systems.

column_definition:
      data_type [NOT NULL | NULL] [DEFAULT default_value]
      [AUTO_INCREMENT] [UNIQUE [KEY] | [PRIMARY] KEY]
      ...

Ref: http://dev.mysql.com/doc/refman/5.1/en/create-table.html

Alternative way, But non-standard.

int i = 6;
char c[2];
char *str = NULL;
if (_itoa_s(i, c, 2, 10) == 0)
   str = c;

Or Using standard c++ stringstream

 std::ostringstream oss;
 oss << 6;

There is a big difference. Tasks are scheduled on the ThreadPool and could even be executed synchronous if appropiate.

If you have a long running background work you should specify this by using the correct Task Option.

You should prefer Task Parallel Library over explicit thread handling, as it is more optimized. Also you have more features like Continuation.

Do not use classpath. This may cause problems with different ClassLoaders (container vs. application). WEB-INF is always the better choice.

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/spring-config.xml</param-value>
</context-param>

and

<bean id="placeholderConfig" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
     <property name="location">
         <value>/WEB-INF/social.properties</value>
     </property>
</bean>

I would use a single Context class inheriting from IdentityDbContext. This way you can have the context be aware of any relations between your classes and the IdentityUser and Roles of the IdentityDbContext. There is very little overhead in the IdentityDbContext, it is basically a regular DbContext with two DbSets. One for the users and one for the roles.

Yes, it is. Declare parameter as so:

@Sort varchar(50) = NULL

Now you don't even have to pass the parameter in. It will default to NULL (or whatever you choose to default to).

A solution with no libraries, dynamic length returned, unsigned integer interpretation (not two's complement)

    public static byte[] numToBytes(int num){
    if(num == 0){
        return new byte[]{};
    }else if(num < 256){
        return new byte[]{ (byte)(num) };
    }else if(num < 65536){
        return new byte[]{ (byte)(num >>> 8),(byte)num };
    }else if(num < 16777216){
        return new byte[]{ (byte)(num >>> 16),(byte)(num >>> 8),(byte)num };
    }else{ // up to 2,147,483,647
        return new byte[]{ (byte)(num >>> 24),(byte)(num >>> 16),(byte)(num >>> 8),(byte)num };
    }
}

http://www.petefreitag.com/item/146.cfm

• Open up windows explorer

• Tools -> Folder Options.

• File Types Tab

• Select the Folder file type

• Click Advanced

• Click New

• For the Action type what ever you want the context menu to display, I used Command Prompt.

• For the Application used to perform the action use c:\windows\system32\cmd.exe (note on win2k you will want to specify the winnt directory instead of the windows directory)

In my case(Bootstrap) the issue was, having the JQuery 3.0.0 which is also not fine, So using a version which is an earlier version like 2.2.4.

The Error i got was: Bootstrap's JavaScript requires jQuery version 1.9.1 or higher, but lower than version 3

Using any of these CDN below as the source would help if this is the case!

jQuery version 2.2.4:

http://ajax.aspnetcdn.com/ajax/jQuery/jquery-2.2.4.js

http://ajax.aspnetcdn.com/ajax/jQuery/jquery-2.2.4.min.js

Hope this helped at least someone!.. :)

Thank you!

If you use lightweight html ux lang, check here an example, write:

div root
 .onmouseover = ev => {root.style.backgroundColor='red'}
 .onmouseleave = ev => {root.style.backgroundColor='initial'}

The code above performes the css :hover metatag.

You can accomplish this via method overloading.

public int doSomething(int arg1, int arg2)
{
        return 0;
}

public int doSomething()
{
        return doSomething(defaultValue0, defaultValue1);
}

By creating this parameterless method you are allowing the user to call the parameterfull method with the default arguments you supply within the implementation of the parameterless method. This is known as overloading the method.

Thanks for everyone who answered, and thanks for those who gave me the function-format idea, i'll really study it for future using.

But for this explicit case, the 'special yyyymm field' is not to be considered as a date field, but just as a tag, o whatever would be used for matching the exactly year-month researched value; there is already another date field, with the full timestamp, but if i need all the rows of january 2008, i think that is faster a select like

SELECT  [columns] FROM table WHERE yearmonth = '200801'

instead of

SELECT  [columns] FROM table WHERE date BETWEEN DATE('2008-01-01') AND DATE('2008-01-31')

SQL Compare by RedGate http://www.red-gate.com/products/SQL_Compare/index.htm

DBDeploy to help with database change management in an automated fashion http://dbdeploy.com/

My mistake was that I was keeping the Javascript file ( tag) above the html declaration.

It worked by placing the js script tag at the bottom of the body inside the body. (I did not the script on load of the page.)

You can add New Symbol Image Set in .xcassets, then you can add SVG file in it

and use it same like image.

Note: This doesn't work on all SVG. You can have a look at the apple documentation

I ran into the same problem. I had a PNG file in a Java package and it wasn't exported in the final JAR along with the sources, which caused the app to crash upon start (file not found).

None of the answers above solved my problem but I found the solution on the Gradle forums. I added the following to my build.gradle file :

sourceSets.main.resources.srcDirs = [ "src/" ]
sourceSets.main.resources.includes = [ "**/*.png" ]

It tells Gradle to look for resources in the src folder, and ask it to include only PNG files.

EDIT: Beware that if you're using Eclipse, this will break your run configurations and you'll get a main class not found error when trying to run your program. To fix that, the only solution I've found is to move the image(s) to another directory, res/ for example, and to set it as srcDirs instead of src/.

From the stack trace it's clear that, the ThreadPoolExecutor > Worker thread started and it's waiting for the task to be available on the BlockingQueue(DelayedWorkQueue) to pick the task and execute.So this thread will be in WAIT status only as long as get a SIGNAL from the publisher thread.

I am using Debian but this solution should work fine with Ubuntu.
You have to add a line in the neo4j-service script.
Here is what I have done :

nano /etc/init.d/neo4j-service
Add « ulimit –n 40000 » just before the start-stop-daemon line in the do_start section

Note that I am using version 2.0 Enterprise edition. Hope this will help you.

https://3v4l.org/VsQLb Example Here

function listdirs($dir) {
    static $alldirs = array();
    $dirs = glob($dir . '/*', GLOB_ONLYDIR);
    if (count($dirs) > 0) {
        foreach ($dirs as $d) $alldirs[] = $d;
    }
    foreach ($dirs as $dir) listdirs($dir);
    return $alldirs;
}

You'll need to deal with File System Object. See this OpenTextFile method sample.

This code is a very good example for a dynamic column with a cursor, since you cannot use '+' in @STATEMENT:

ALTER PROCEDURE dbo.spTEST
AS
    SET NOCOUNT ON
    DECLARE @query NVARCHAR(4000) = N'' --DATA FILTER
    DECLARE @inputList NVARCHAR(4000) = ''
    DECLARE @field sysname = '' --COLUMN NAME
    DECLARE @my_cur CURSOR
    EXECUTE SP_EXECUTESQL
        N'SET @my_cur = CURSOR FAST_FORWARD FOR
            SELECT
                CASE @field
                    WHEN ''fn'' then fn
                    WHEN ''n_family_name'' then n_family_name
                END
            FROM
                dbo.vCard
            WHERE
                CASE @field
                    WHEN ''fn'' then fn
                    WHEN ''n_family_name'' then n_family_name
                END
                LIKE ''%''+@query+''%'';
            OPEN @my_cur;',
        N'@field sysname, @query NVARCHAR(4000), @my_cur CURSOR OUTPUT',
        @field = @field,
        @query = @query,
        @my_cur = @my_cur OUTPUT
    FETCH NEXT FROM @my_cur INTO @inputList
    WHILE @@FETCH_STATUS = 0
    BEGIN
        PRINT @inputList
        FETCH NEXT FROM @my_cur INTO @inputList
    END
    RETURN

I had the same problem, ruby-1.8.7-p357, and tried loads of things in vain...

I finally realised that it happens only on multiple calls using the same XMLRPC::Client instance!

So now I'm re-instantiating my client at each call and it just works:|

I was also having same issue and stuck for some days, but after some research i figured out that we can actually use chrome's "--remote-debugging-port" to intercept requests in conjunction with selenium web driver. Use following Pseudocode as a reference:-

create instance of chrome driver with remote debugging

int freePort = findFreePort();

chromeOptions.addArguments("--remote-debugging-port=" + freePort);

ChromeDriver driver = new ChromeDriver(chromeOptions);`

make a get call to http://127.0.0.1:freePort

String response = makeGetCall( "http://127.0.0.1" + freePort  + "/json" );

Extract chrome's webSocket Url to listen, you can see response and figure out how to extract

String webSocketUrl = response.substring(response.indexOf("ws://127.0.0.1"), response.length() - 4);

Connect to this socket, u can use asyncHttp

socket = maketSocketConnection( webSocketUrl );

Enable network capture

socket.send( { "id" : 1, "method" : "Network.enable" } );

Now chrome will send all network related events and captures them as follows

socket.onMessageReceived( String message ){

    Json responseJson = toJson(message);
    if( responseJson.method == "Network.responseReceived" ){
       //extract status code
    }
}

driver.get("http://stackoverflow.com");

you can do everything mentioned in dev tools site. see https://chromedevtools.github.io/devtools-protocol/ Note:- use chromedriver 2.39 or above.

I hope it helps someone.

reference : Using Google Chrome remote debugging protocol

You should use the OpenFileDialog class like this

Dim fd As OpenFileDialog = New OpenFileDialog() 
Dim strFileName As String

fd.Title = "Open File Dialog"
fd.InitialDirectory = "C:\"
fd.Filter = "All files (*.*)|*.*|All files (*.*)|*.*"
fd.FilterIndex = 2
fd.RestoreDirectory = True

If fd.ShowDialog() = DialogResult.OK Then
   strFileName = fd.FileName
End If

Then you can use the File class.

It's the ASCII/UTF code for LF (0A) - Unix-based systems are using it as the newline character, while Windows uses the CR-LF PAIR (OD0A).

How about SymPy? Their solver looks like what you need. Have a look at their source code if you want to build the library yourself…

This is my powershell newbie way of doing this

if ((Test-Path ".\Desktop\checkfile.txt") -ne "True") {
    Write-Host "Damn it"
} else {
    Write-Host "Yay"
}

This can be done with setjmp/longjmp in C. P99 has a quite comfortable toolset for this that also is consistent with the new thread model of C11.

You cannot trust g++ 4.6.3 here with 64 bit integers on a 32 bit intel platform. a/b is computed by a call to divdi3 and a%b is computed by a call to moddi3. I can even come up with an example that computes a/b and a-b*(a/b) with these calls. So I use c=a/b and a-b*c.

The div method gives a call to a function which computes the div structure, but a function call seems inefficient on platforms which have hardware support for the integral type (i.e. 64 bit integers on 64 bit intel/amd platforms).

Solution 1:

Using pandas with large data

Solution 2:

TextFileReader = pd.read_csv(path, chunksize=1000)  # the number of rows per chunk

dfList = []
for df in TextFileReader:
    dfList.append(df)

df = pd.concat(dfList,sort=False)

An adventage of use ExpectedException Rule (version 4.7) is that you can test exception message and not only the expected exception.

And using Matchers, you can test the part of message you are interested:

exception.expectMessage(containsString("income: -1000.0"));

You are missing a parantheses in the denominator of your gaussian() function. As it is right now you divide by 2 and multiply with the variance (sig^2). But that is not true and as you can see of your plots the greater variance the more narrow the gaussian is - which is wrong, it should be opposit.

So just change the gaussian() function to:

def gaussian(x, mu, sig):
    return np.exp(-np.power(x - mu, 2.) / (2 * np.power(sig, 2.)))

localhost is a special hostname that almost always resolves to 127.0.0.1. If you ask someone else to connect to http://localhost they'll be connecting to their computer instead or yours.

To share your web server with someone else you'll need to find your IP address or your hostname and provide that to them instead. On windows you can find this with ipconfig /all on a command line.

You'll also need to make sure any firewalls you may have configured allow traffic on port 80 to connect to the WAMP server.

Try this gives awesome results

function getDistance($point1_lat, $point1_long, $point2_lat, $point2_long, $unit = 'km', $decimals = 2) {
        // Calculate the distance in degrees
        $degrees = rad2deg(acos((sin(deg2rad($point1_lat))*sin(deg2rad($point2_lat))) + (cos(deg2rad($point1_lat))*cos(deg2rad($point2_lat))*cos(deg2rad($point1_long-$point2_long)))));

        // Convert the distance in degrees to the chosen unit (kilometres, miles or nautical miles)
        switch($unit) {
            case 'km':
                $distance = $degrees * 111.13384; // 1 degree = 111.13384 km, based on the average diameter of the Earth (12,735 km)
                break;
            case 'mi':
                $distance = $degrees * 69.05482; // 1 degree = 69.05482 miles, based on the average diameter of the Earth (7,913.1 miles)
                break;
            case 'nmi':
                $distance =  $degrees * 59.97662; // 1 degree = 59.97662 nautic miles, based on the average diameter of the Earth (6,876.3 nautical miles)
        }
        return round($distance, $decimals);
    }

Different way of counting by using bisect module:

>>> from bisect import bisect
>>> j = [4, 5, 6, 7, 1, 3, 7, 5]
>>> j.sort()
>>> b = 5
>>> index = bisect(j,b) #Find that index value
>>> print len(j)-index
3

Caller-Saved (AKA volatile or call-clobbered) Registers

• The values in caller-saved registers are short term and are not preserved from call to call  
• It holds temporary (i.e. short term) data

Callee-Saved (AKA non-volatile or call-preserved) Registers

• The callee-saved registers hold values across calls and are long term
• It holds non-temporary (i.e. long term) data that is used through multiple functions/calls

A complete working example from the code above.... for C++11:

#include <stdlib.h>
#include <stdio.h>
#include <functional>

#if __cplusplus <= 199711L
  #error This file needs at least a C++11 compliant compiler, try using:
  #error    $ g++ -std=c++11 ..
#endif

using namespace std;

class EventHandler {
    public:
        void addHandler(std::function<void(int)> callback) {
            printf("\nHandler added...");
            // Let's pretend an event just occured
            callback(1);
        }
};


class MyClass
{
    public:
        MyClass(int);
        // Note: No longer marked `static`, and only takes the actual argument
        void Callback(int x);

    private:
        EventHandler *pHandler;
        int private_x;
};

MyClass::MyClass(int value) {
    using namespace std::placeholders; // for `_1`

    pHandler = new EventHandler();
    private_x = value;
    pHandler->addHandler(std::bind(&MyClass::Callback, this, _1));
}

void MyClass::Callback(int x) {
    // No longer needs an explicit `instance` argument,
    // as `this` is set up properly
    printf("\nResult:%d\n\n", (x+private_x));
}

// Main method
int main(int argc, char const *argv[]) {

    printf("\nCompiler:%ld\n", __cplusplus);
    new MyClass(5);
    return 0;
}


// where $1 is your .cpp file name... this is the command used:
// g++ -std=c++11 -Wall -o $1 $1.cpp
// chmod 700 $1
// ./$1

Output should be:

Compiler:201103

Handler added...
Result:6

You can also write this:

SqlCommand cmd=new SqlCommand ("insert into time(project,iteration) values (@project, @iteration)", conn);
cmd.Parameters.AddWithValue("@project",name1.SelectedValue);
cmd.Parameters.AddWithValue("@iteration",iteration.SelectedValue);

No, but you can use the s/// substitution operator and the \s whitespace assertion to get the same result.

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '<

Very simple question that you can solved it easily ,

Please follow my step : change < to ( and >; to );

Just use: (

     );

enter code here

` CREATE TABLE information (
-> id INT(11) NOT NULL AUTO_INCREMENT,
-> name VARCHAR(30) NOT NULL,
-> age INT(10) NOT NULL,
-> salary INT(100) NOT NULL,
-> address VARCHAR(100) NOT NULL,
-> PRIMARY KEY(id)
-> );`

I suppose you want to get the content generated by PHP, if so use:

$Vdata = file_get_contents('http://YOUR_HOST/YOUR/FILE.php');

Otherwise if you want to get the source code of the PHP file, it's the same as a .txt file:

$Vdata = file_get_contents('path/to/YOUR/FILE.php');

I am using xampp. For me best option is to change environment variables. Environment variable changing window is shared by @Abu Bakr in this thread

I change the path value as C:\xampp\mysql\bin; and it is working nice

DBMS stands for "Database Management Systems" it includes all Databases. RDBMS are a special Type of DMBS . R in RDBMS implies that the database uses the Relational model. a collection of related tables in the relational model makes up a database.DBMS is used for simple and small application while RDBMS is used for applications with a huge database.DBMS are for smaller organizations where security is not concerned(i.e. DBMS does not impose any constraints) while RDBMS is quitely opposite( RDBMS define the integrity constraint for the purpose of holding ACID PROPERTY).

What about "optimizer hints" from MySQL 8.x ?

for example:

SELECT /*+ SET_VAR(sql_mode='STRICT_TRANS_TABLES') */
... rest of query

more information: https://dev.mysql.com/doc/refman/8.0/en/optimizer-hints.html#optimizer-hints-set-var

While working with selected cells as shown by @tbur can be useful, it's also not the only option available.

You can use Range() like so:

If Worksheets("Sheet1").Range("A1").MergeCells Then
  Do something
Else
  Do something else
End If

Or:

If Worksheets("Sheet1").Range("A1:C1").MergeCells Then
  Do something
Else
  Do something else
End If

Alternately, you can use Cells():

If Worksheets("Sheet1").Cells(1, 1).MergeCells Then
  Do something
Else
  Do something else
End If

I was solving same problem recently. I was designing a write cmdlet for my Subtitle module. I had six different user stories:

• Subtitle only
• Subtitle and path (original file name is used)
• Subtitle and new file name (original path is used)
• Subtitle and name suffix is used (original path and modified name is used).
• Subtile, new path and new file name is is used.
• Subtitle, new path and suffix is used.

I end up in the big frustration because I though that 4 parameters will be enough. Like most of the times, the frustration was pointless because it was my fault. I didn't know enough about parameter sets.

After some research in documentation, I realized where is the problem. With knowledge how the parameter sets should be used, I developed a general and simple approach how to solve this problem. A pencil and a sheet of paper is required but a spreadsheet editor is better:

1. Write down all intended ways how the cmdlet should be used => user stories.
2. Keep adding parameters with meaningful names and mark the use of the parameters until you have a unique collection set => no repetitive combination of parameters.
3. Implement parameter sets into your code.
4. Prepare tests for all possible user stories.
5. Run tests (big surprise, right?). IDEs doesn't checks parameter sets collision, tests could save lots of trouble later one.

Example:

The practical example could be seen over here.

BTW: The parameter uniqueness within parameter sets is the reason why the ParameterSetName property doesn't support [String[]]. It doesn't really make any sense.

• Make a copy of your OpenSSL config in your home directory:

  cp /System/Library/OpenSSL/openssl.cnf ~/openssl-temp.cnf
  

  or on Linux:

  cp /etc/ssl/openssl.cnf ~/openssl-temp.cnf
  

• Add Subject Alternative Name to openssl-temp.cnf, under [v3_ca]:

  [ v3_ca ]
  subjectAltName = DNS:localhost
  

  Replace localhost by the domain for which you want to generate that certificate.

• Generate certificate:

  sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
      -config ~/openssl-temp.cnf
      -keyout /path/to/your.key -out /path/to/your.crt
  

You can then delete openssl-temp.cnf

 Use -v to see progress of backup data
    mongodump -v --db dbname --out /pathforbackup/NewFolderforBackupData

 you can use it for restore also
    mongorestore -v --db dbname --drop /pathforbackup/NewFolderforBackupData/dbname

with multile v like -vvvv you will get more information

ULs don't have a name attribute, but you can reference the ul by tag name.

Try replacing line 3 in your script with this:

var sub = cat.getElementsByTagName("UL");

In java spark dataset it can be used as

Dataset userfilter = user.filter(col("gender").isin("male","female"));

Even shorter

var foo = (user, pass) =>
  new Promise((resolve, reject) => {
    if (/* condition */) {
      resolve("Fine");
    } else {
      reject("Error message");
    }
  });

foo(user, pass).then(result => {
  /* process */
});

install JDK it will work ,

here is the jdk link to download .

link: https://www.oracle.com/technetwork/java/javase/downloads/jdk13-downloads- 5672538.html

I think you want SELECT * FROM INFORMATION_SCHEMA.TABLES

See http://dev.mysql.com/doc/refman/5.0/en/tables-table.html

It should also be noted that if you have buttons grouped together on your user form that it can link it to a different button in the group despite the one you intended being clicked.

What that build error is telling you, that you have to either have an instance of Program or make Add static.

Macros in Notepad++ are just a bunch of encoded operations: you start recording, operate on the buffer, perhaps activating menus, stop recording then play the macro.
After investigation, I found out they are saved in the file shortcuts.xml in the Macros section. For example, I have there:

<Macro name="Trim Trailing and save" Ctrl="no" Alt="yes" Shift="yes" Key="83">
    <Action type="1" message="2170" wParam="0" lParam="0" sParam=" " />
    <Action type="1" message="2170" wParam="0" lParam="0" sParam=" " />
    <Action type="1" message="2170" wParam="0" lParam="0" sParam=" " />
    <Action type="0" message="2327" wParam="0" lParam="0" sParam="" />
    <Action type="0" message="2327" wParam="0" lParam="0" sParam="" />
    <Action type="2" message="0" wParam="42024" lParam="0" sParam="" />
    <Action type="2" message="0" wParam="41006" lParam="0" sParam="" />
</Macro>

I haven't looked at the source, but from the look, I would say we have messages sent to Scintilla (the editing component, perhaps type 0 and 1), and to Notepad++ itself (probably activating menu items).
I don't think it will record actions in dialogs (like search/replace).

Looking at Scintilla.iface file, we can see that 2170 is the code of ReplaceSel (ie. insert string is nothing is selected), 2327 is Tab command, and Resource Hacker (just have it handy...) shows that 42024 is "Trim Trailing Space" menu item and 41006 is "Save".
I guess action type 0 is for Scintilla commands with numerical params, type 1 is for commands with string parameter, 2 is for Notepad++ commands.

Problem: Scintilla doesn't have a "Replace all" command: it is the task of the client to do the iteration, with or without confirmation, etc.
Another problem: it seems type 1 action is limited to 1 char (I edited manually, when exiting N++ it was truncated).
I tried some tricks, but I fear such task is beyond the macro capabilities.

Maybe that's where SciTE with its Lua scripting ability (or Programmer's Notepad which seems to be scriptable with Python) has an edge... :-)

[EDIT] Looks like I got the above macro from this thread or a similar place... :-) I guess the first lines are unnecessary (side effect or recording) but they were good examples of macro code anyway.

This might not really answer the question, but just in case someone just need to quickly send a string value to a function that require a NSArray parameter.

NSArray *data = @[@"The String Value"];

if you need to send more than just 1 string value, you could also use

NSArray *data = @[@"The String Value", @"Second String", @"Third etc"];

then you can send it to the function like below

theFunction(data);

There are 2 solutions for your problem:

1. Either you set a fixed size of the Tkinter window; mw.geometry('500x500')

OR

2. Make the Frame adjust to the size of the window automatically;back.place(x = 0, y = 0, relwidth = 1, relheight = 1)

*The second option should be used in place of back.pack()

You have to click and hold until the other icon shows up, then slide the mouse down to the icon.

Assuming a is a string. The Slice notation in python has the syntax -

list[<start>:<stop>:<step>]

So, when you do a[::-1], it starts from the end towards the first taking each element. So it reverses a. This is applicable for lists/tuples as well.

Example -

>>> a = '1234'
>>> a[::-1]
'4321'

Then you convert it to int and then back to string (Though not sure why you do that) , that just gives you back the string.

numpy's genfromtxt or loadtxt is what I use:

import numpy as np
...
wordset = np.genfromtxt(fname='words.txt')

This got me headed in the right direction and solved my problem.

In javascript there are no block-level scopes only function-level scopes:

Read this article about javaScript Scoping and Hoisting.

See how I debugged your code:

var deferred = $q.defer();
deferred.count = i;

console.log(deferred.count); // 0,1,2,3,4,5 --< all deferred objects

// some code

.success(function(data){
   console.log(deferred.count); // 5,5,5,5,5,5 --< only the last deferred object
   deferred.resolve(data);
})

• When you write var deferred= $q.defer(); inside a for loop it's hoisted to the top of the function, it means that javascript declares this variable on the function scope outside of the for loop.
• With each loop, the last deferred is overriding the previous one, there is no block-level scope to save a reference to that object.
• When asynchronous callbacks (success / error) are invoked, they reference only the last deferred object and only it gets resolved, so $q.all is never resolved because it still waits for other deferred objects.
• What you need is to create an anonymous function for each item you iterate.
• Since functions do have scopes, the reference to the deferred objects are preserved in a closure scope even after functions are executed.
• As #dfsq commented: There is no need to manually construct a new deferred object since $http itself returns a promise.

  ---

Solution with angular.forEach:

Here is a demo plunker: http://plnkr.co/edit/NGMp4ycmaCqVOmgohN53?p=preview

UploadService.uploadQuestion = function(questions){

    var promises = [];

    angular.forEach(questions , function(question) {

        var promise = $http({
            url   : 'upload/question',
            method: 'POST',
            data  : question
        });

        promises.push(promise);

    });

    return $q.all(promises);
}

My favorite way is to use Array#map:

Here is a demo plunker: http://plnkr.co/edit/KYeTWUyxJR4mlU77svw9?p=preview

UploadService.uploadQuestion = function(questions){

    var promises = questions.map(function(question) {

        return $http({
            url   : 'upload/question',
            method: 'POST',
            data  : question
        });

    });

    return $q.all(promises);
}

I realize this may be a bit late, but I stumbled upon this and was wondering how to handle situations with multiple identical values, but different keys (as per bigbearzhu's comment).

So I modified Stephan Muller's answer slightly:

A datalist with non-unique values:

<input list="answers" name="answer" id="answerInput">
<datalist id="answers">
  <option value="42">The answer</option>
  <option value="43">The answer</option>
  <option value="44">Another Answer</option>
</datalist>
<input type="hidden" name="answer" id="answerInput-hidden">

When the user selects an option, the browser replaces input.value with the value of the datalist option instead of the innerText.

The following code then checks for an option with that value, pushes that into the hidden field and replaces the input.value with the innerText.

document.querySelector('#answerInput').addEventListener('input', function(e) {
    var input = e.target,   
        list = input.getAttribute('list'),
        options = document.querySelectorAll('#' + list + ' option[value="'+input.value+'"]'),
        hiddenInput = document.getElementById(input.getAttribute('id') + '-hidden');

    if (options.length > 0) {
      hiddenInput.value = input.value;
      input.value = options[0].innerText;
      }

});

As a consequence the user sees whatever the option's innerText says, but the unique id from option.value is available upon form submit. Demo jsFiddle

We use JavaCSV, it works pretty well

Another option is to repeat the rules in two prefix locations using an included file. Since prefix locations are position independent in the configuration, using them can save some confusion as you add other regex locations later on. Avoiding regex locations when you can will help your configuration scale smoothly.

server {
    location /first/location/ {
        include shared.conf;
    }
    location /second/location/ {
        include shared.conf;
    }
}

Here's a sample shared.conf:

default_type text/plain;
return 200 "http_user_agent:    $http_user_agent
remote_addr:    $remote_addr
remote_port:    $remote_port
scheme:     $scheme
nginx_version:  $nginx_version
";

TreeMap, which is an implementation of the SortedMap interface, would work.

How do I use it ?

Map<Float, MyObject> map = new TreeMap<Float, MyObject>();

For-loops:

For-loop in C:

for(int x = 0; x<=3; x++)
{
    //Do something!
}

The same loop in 8086 assembler:

        xor cx,cx   ; cx-register is the counter, set to 0
loop1   nop         ; Whatever you wanna do goes here, should not change cx
        inc cx      ; Increment
        cmp cx,3    ; Compare cx to the limit
        jle loop1   ; Loop while less or equal

That is the loop if you need to access your index (cx). If you just wanna to something 0-3=4 times but you do not need the index, this would be easier:

        mov cx,4    ; 4 iterations
loop1   nop         ; Whatever you wanna do goes here, should not change cx
        loop loop1  ; loop instruction decrements cx and jumps to label if not 0

If you just want to perform a very simple instruction a constant amount of times, you could also use an assembler-directive which will just hardcore that instruction

times 4 nop

Do-while-loops

Do-while-loop in C:

int x=1;
do{
    //Do something!
}
while(x==1)

The same loop in assembler:

        mov ax,1
loop1   nop         ; Whatever you wanna do goes here
        cmp ax,1    ; Check wether cx is 1
        je loop1    ; And loop if equal

While-loops

While-loop in C:

while(x==1){
    //Do something
}

The same loop in assembler:

        jmp loop1   ; Jump to condition first
cloop1  nop         ; Execute the content of the loop
loop1   cmp ax,1    ; Check the condition
        je cloop1   ; Jump to content of the loop if met

For the for-loops you should take the cx-register because it is pretty much standard. For the other loop conditions you can take a register of your liking. Of course replace the no-operation instruction with all the instructions you wanna perform in the loop.

To Fix The "Missing "server" JVM at C:\Program Files\Java\jre7\bin\server\jvm­­.dll, please install or use the JRE or JDK that contains these missing components.

Follow these steps:

Go to oracle.com and install Java JRE7 (Check if Java 6 is not installed already)

After that, go to C:/Program files/java/jre7/bin

Here, create an folder called Server

Now go into the C:/Program files/java/jre7/bin/client folder

Copy all the data in this folder into the new C:/Program files/java/jre7/bin/Server folder

You can use System.arraycopy().

int[] source = new int[1000];

int[] part1 = new int[500];
int[] part2 = new int[500];

//              (src   , src-offset  , dest , offset, count)
System.arraycopy(source, 0           , part1, 0     , part1.length);
System.arraycopy(source, part1.length, part2, 0     , part2.length);

I had to use vbLf only in an ASP script where the original data was POSTed from a PHP script on a cPanel box over to ASP on a win server

(VBScript)

EmailText = Replace(EmailText, vbLf, "<br>")

You may find this thread useful. And here's a google code project exemplifying this (it P/Invokes into setupapi.dll).

Set padding-top to be an appropriate value to push the x down, then subtract the value you have for padding-top from the height.

A pointer is a "reference" to a value.. much like a library call number is a reference to a book. "Dereferencing" the call number is physically going through and retrieving that book.

int a=4 ;
int *pA = &a ;
printf( "The REFERENCE/call number for the variable `a` is %p\n", pA ) ;

// The * causes pA to DEREFERENCE...  `a` via "callnumber" `pA`.
printf( "%d\n", *pA ) ; // prints 4.. 

If the book isn't there, the librarian starts shouting, shuts the library down, and a couple of people are set to investigate the cause of a person going to find a book that isn't there.

Change the submit button to:

<button type="submit" ng-disabled="loginform.$invalid">Login</button>

Example to set in the "V" environment variable the most recent file

FOR /F %I IN ('DIR *.* /O:D /B') DO SET V=%I

in a batch file you have to use double prefix in the loop variable:

FOR /F %%I IN ('DIR *.* /O:D /B') DO SET V=%%I

See the scipy.interpolate documentation for some examples.

The following example demonstrates its use, for linear and cubic spline interpolation:

>>> from scipy.interpolate import interp1d

>>> x = np.linspace(0, 10, num=11, endpoint=True)
>>> y = np.cos(-x**2/9.0)
>>> f = interp1d(x, y)
>>> f2 = interp1d(x, y, kind='cubic')

>>> xnew = np.linspace(0, 10, num=41, endpoint=True)
>>> import matplotlib.pyplot as plt
>>> plt.plot(x, y, 'o', xnew, f(xnew), '-', xnew, f2(xnew), '--')
>>> plt.legend(['data', 'linear', 'cubic'], loc='best')
>>> plt.show()

If you use Xcode 7 or later just do a product -> clean. This worked for me.

This is old thread but answer because if useful to anyone.

Step 1. Your Db Storage Engine set to InnoDB

Step 2. Create Primary Table

here customer is primary table and customer_id is primary key

Step 3. create foreign key table and give index

here we have customer_addresses as related table and store customer addresses, so here customer_id relation with customer table

we can select index directly when create table as below

If you forgot to give index when create a table, then you can give index from the structure tab of table as below.

Step 4. Once index give to the field, Go to structure tab and click on Relation View as shown in below pic

Step 5. Now select the ON DELETE and ON UPDATE what you want to do, Select column from current table, select DB (SAME DB), select relation table and primary key from that table as shown in below pic and Save it

Now check if relation are give successfully, go to foreign table data list and click on foreign key value, you will redirect to primary table record, then relation made successfully.

The script to autoincrement the build number in the answer above didn't work for me if the build number is a floating point value, so I modified it a little:

#!/bin/bash    
buildNumber=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" "$INFOPLIST_FILE")
buildNumber=`echo $buildNumber +1|bc`
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "$INFOPLIST_FILE"

The answer shared by @mockinterface is correct. Although I would like to add my 2 cents to it.

If someone is using frameworks like scrapy the you will have to use /html/body//a[contains(@href,'com')][2]/@href along with get() like this:

response.xpath('//a[contains(@href,'com')][2]/@href').get()

I've noticed this can happen (sometimes) when editing java files while Android Studio is building.

I solved this by manually deleting the build folder and running agin.

Use INDIRECT()

=SUM(INDIRECT(<start cell here> & ":" & <end cell here>))

• To set up the Driver to run a quick sample

1. Go to https://dev.mysql.com/downloads/connector/j/, get the latest version of Connector/J

2. Remember to set the classpath to include the path of the connector jar file.
If we don't set it correctly, below errors can occur:

No suitable driver found for jdbc:mysql://127.0.0.1:3306/msystem_development

java.lang.ClassNotFoundException: com.mysql.jdbc:Driver

• To set up the CLASSPATH

Method 1: set the CLASSPATH variable.

export CLASSPATH=".:mysql-connector-java-VERSION.jar"
java MyClassFile

In the above command, I have set the CLASSPATH to the current folder and mysql-connector-java-VERSION.jar file. So when the java MyClassFile command executed, java application launcher will try to load all the Java class in CLASSPATH. And it found the Drive class => BOOM errors was gone.

Method 2:

java -cp .:mysql-connector-java-VERSION.jar MyClassFile

Note: Class.forName("com.mysql.jdbc.Driver"); This is deprecated at this moment 2019 Apr.

Hope this can help someone!

Use:

/*/ITEM[starts-with(REVENUE_YEAR,'2552')]/REGION

Note: Unless your host language can't handle element instance as result, do not use text nodes specially in mixed content data model. Do not start expressions with // operator when the schema is well known.

Eclipse C/C++ does not recognize the symbol std::unique_ptr even though you have included the C++11 memory header in your file.

Assuming you are using the GNU C++ compiler, this is what I did to fix:

Project -> Properties -> C/C++ General -> Preprocessor Include Paths -> GNU C++ -> CDT User Setting Entries

1. Click on the "Add..." button

2. Select "Preprocessor Macro" from the dropdown menu

   Name: __cplusplus     Value:  201103L
   

3. Hit Apply, and then OK to go back to your project

4. Then rebuild you C++ index: Projects -> C/C++ Index -> Rebuild

The easiest way is to add the:

$('#ID').css("height", $(document).height());

after the correct page height is determined by the browser. If the document height is changed once more re-run the above code.

I do not like transformations to have any more info than needed. So instead of restating the keys, I simply state the condition and intention. It is much easier to see the intention when done like this, at least IMO. Also, I try and put all the xdt attributes first to indicate to the reader, these are transformations and not new things being defined.

<appSettings>
  <add xdt:Locator="Condition(@key='developmentModeUserId')" xdt:Transform="Remove" />
  <add xdt:Locator="Condition(@key='developmentMode')" xdt:Transform="SetAttributes"
       value="false"/>
</appSettings>

In the above it is much easier to see that the first one is removing the element. The 2nd one is setting attributes. It will set/replace any attributes you define here. In this case it will simply set value to false.

Since you don't mention a plot package , I propose here using Lattice version( I think there is more ggplot2 answers than lattice ones, at least since I am here in SO).

 ## reshaping the data( similar to the other answer)
 library(reshape2)
 dat.m <- melt(TestData,id.vars='Label')
 library(lattice)
 bwplot(value~Label |variable,    ## see the powerful conditional formula 
        data=dat.m,
        between=list(y=1),
        main="Bad or Good")

Though you can't add a key pair to a running EC2 instance directly, you can create a linux user and create a new key pair for him, then use it like you would with the original user's key pair.

In your case, you can ask the instance owner (who created it) to do the following. Thus, the instance owner doesn't have to share his own keys with you, but you would still be able to ssh into these instances. These steps were originally posted by Utkarsh Sengar (aka. @zengr) at http://utkarshsengar.com/2011/01/manage-multiple-accounts-on-1-amazon-ec2-instance/. I've made only a few small changes.

1. Step 1: login by default “ubuntu” user:

   $ ssh -i my_orig_key.pem [email protected]
   

2. Step 2: create a new user, we will call our new user “john”:

   [ubuntu@ip-11-111-111-111 ~]$ sudo adduser john
   

   Set password for “john” by:

   [ubuntu@ip-11-111-111-111 ~]$ sudo su -
   [root@ip-11-111-111-111 ubuntu]# passwd john
   

   Add “john” to sudoer’s list by:

   [root@ip-11-111-111-111 ubuntu]# visudo
   

   .. and add the following to the end of the file:

   john   ALL = (ALL)    ALL
   

   Alright! We have our new user created, now you need to generate the key file which will be needed to login, like we have my_orin_key.pem in Step 1.

   Now, exit and go back to ubuntu, out of root.

   [root@ip-11-111-111-111 ubuntu]# exit
   [ubuntu@ip-11-111-111-111 ~]$
   

3. Step 3: creating the public and private keys:

   [ubuntu@ip-11-111-111-111 ~]$ su john
   

   Enter the password you created for “john” in Step 2. Then create a key pair. Remember that the passphrase for key pair should be at least 4 characters.

   [john@ip-11-111-111-111 ubuntu]$ cd /home/john/
   [john@ip-11-111-111-111 ~]$ ssh-keygen -b 1024 -f john -t dsa
   [john@ip-11-111-111-111 ~]$ mkdir .ssh
   [john@ip-11-111-111-111 ~]$ chmod 700 .ssh
   [john@ip-11-111-111-111 ~]$ cat john.pub > .ssh/authorized_keys
   [john@ip-11-111-111-111 ~]$ chmod 600 .ssh/authorized_keys
   [john@ip-11-111-111-111 ~]$ sudo chown john:ubuntu .ssh
   

   In the above step, john is the user we created and ubuntu is the default user group.

   [john@ip-11-111-111-111 ~]$ sudo chown john:ubuntu .ssh/authorized_keys
   

4. Step 4: now you just need to download the key called “john”. I use scp to download/upload files from EC2, here is how you can do it.

   You will still need to copy the file using ubuntu user, since you only have the key for that user name. So, you will need to move the key to ubuntu folder and chmod it to 777.

   [john@ip-11-111-111-111 ~]$ sudo cp john /home/ubuntu/
   [john@ip-11-111-111-111 ~]$ sudo chmod 777 /home/ubuntu/john
   

   Now come to local machine’s terminal, where you have my_orig_key.pem file and do this:

   $ cd ~/.ssh
   $ scp -i my_orig_key.pem [email protected]:/home/ubuntu/john john
   

   The above command will copy the key “john” to the present working directory on your local machine. Once you have copied the key to your local machine, you should delete “/home/ubuntu/john”, since it’s a private key.

   Now, one your local machine chmod john to 600.

   $ chmod 600 john
   

5. Step 5: time to test your key:

   $ ssh -i john [email protected]
   

So, in this manner, you can setup multiple users to use one EC2 instance!!

One thing that other answers haven't pointed out is that one advantage of not treating integers as truth values is that it avoids this C / C++ bug syndrome:

int i = 0;
if (i = 1) {
    print("the sky is falling!\n");
} 

In C / C++, the mistaken use of = rather than == causes the condition to unexpectedly evaluate to "true" and update i as an accidental side-effect.

In Java, that is a compilation error, because the value of the assigment i = 1 has type int and a boolean is required at that point. The only case where you'd get into trouble in Java is if you write lame code like this:

boolean ok = false;
if (ok = true) {  // bug and lame style
    print("the sky is falling!\n");
}

... which anyone with an ounce of "good taste" would write as ...

boolean ok = false;
if (ok) {
    print("the sky is falling!\n");
}

None of the answers here worked for me out of the box, here is what worked for me:

Create pipes/keys.ts with contents:

import { Pipe, PipeTransform } from '@angular/core';

@Pipe({name: 'keys'})
export class KeysPipe implements PipeTransform
{
    transform(value:any, args:string[]): any {
        let keys:any[] = [];
        for (let key in value) {
            keys.push({key: key, value: value[key]});
        }
        return keys;
    }
}

Add to app.module.ts (Your main module):

import { KeysPipe } from './pipes/keys';

and then add to your module declarations array something like this:

@NgModule({
    declarations: [
        KeysPipe
    ]
})
export class AppModule {}

Then in your view template you can use something like this:

<option *ngFor="let entry of (myData | keys)" value="{{ entry.key }}">{{ entry.value }}</option>

Here is a good reference I found if you want to read more.

Setting car.colour to the value you want to have initially selected usually works.

When car.colour is set, you can remove [selected]="car.color.id == x.id".

If the value is not a string [ngValue]="..." must be used. [value]="..." only supports strings.

You should also specify the schema of the table or you might get this error:

Msg 15248, Level 11, State 1, Procedure sp_rename, Line 238 Either the parameter @objname is ambiguous or the claimed @objtype (COLUMN) is wrong.

If it is a deployment script I would also recommend adding some additional security to it.

IF EXISTS (
        SELECT 1
        FROM sys.columns
        WHERE
            name = 'OldColumnName' AND
            object_name(object_id) = 'TableName'
    ) AND
    NOT EXISTS (
        SELECT 1
        FROM sys.columns
        WHERE
            name = 'NewColumnName' AND
            object_name(object_id) = 'TableName'
    )
    EXEC sp_RENAME 'SchemaName.TableName.OldColumnName', 'NewColumnName', 'COLUMN';

Actually, I just noticed that the shell syntax somewhat has a behavior built-in that allows for easy reconstruction of the array when, as posed in the question, an item should be removed.

# let's set up an array of items to consume:
x=()
for (( i=0; i<10; i++ )); do
    x+=("$i")
done

# here, we consume that array:
while (( ${#x[@]} )); do
    i=$(( $RANDOM % ${#x[@]} ))
    echo "${x[i]} / ${x[@]}"
    x=("${x[@]:0:i}" "${x[@]:i+1}")
done

Notice how we constructed the array using bash's x+=() syntax?

You could actually add more than one item with that, the content of a whole other array at once.

Important Note: Alert of Future Deprecation.

As of iOS 9.0, the API functions description for:

AudioServicesPlaySystemSound(inSystemSoundID: SystemSoundID)
AudioServicesPlayAlertSound(inSystemSoundID: SystemSoundID)

includes the following note:

This function will be deprecated in a future release.
Use AudioServicesPlayAlertSoundWithCompletion or  
AudioServicesPlaySystemSoundWithCompletion instead.

The right way to go will be using any of these two:

AudioServicesPlayAlertSoundWithCompletion(kSystemSoundID_Vibrate, nil)

or

AudioServicesPlayAlertSoundWithCompletion(kSystemSoundID_Vibrate) {
 //your callback code when the vibration is done (it may not vibrate in iPod, but this callback will be always called)
}

remember to import AVFoundation

You can also specify the TNS name in the JDBC URL as below

jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS_LIST =(ADDRESS =(PROTOCOL=TCP)(HOST=blah.example.com)(PORT=1521)))(CONNECT_DATA=(SID=BLAHSID)(GLOBAL_NAME=BLAHSID.WORLD)(SERVER=DEDICATED)))

Cast abc to an integer.

(int)(Math.random()*100);

Alright so for me, the error being fixed is when there are different versions of python installed and yum can't find a certain .so file and throws an exception.
yum wants 2.7.5 according to the error.

which python gives me /usr/bin/python
python --version gives me 2.7.5

The fix for me was append /lib64 to the LD_LIBRARY_PATH environment variable. The relevant content is /lib64/python2.7 and /lib64/python3.6.

export LD_LIBRARY_PATH=/lib64:$LD_LIBRARY_PATH

Fixed the yum error for me with multiple python versions installed.

This answer will be for swift dictionary w/ String keys. Like this one below.

let dict: [String: Int] = ["hey": 1, "yo": 2, "sup": 3, "hello": 4, "whassup": 5]

Here's the extension I'll use.

extension Dictionary {
  func allKeys() -> [String] {
    guard self.keys.first is String else {
      debugPrint("This function will not return other hashable types. (Only strings)")
      return []
    }
    return self.flatMap { (anEntry) -> String? in
                          guard let temp = anEntry.key as? String else { return nil }
                          return temp }
  }
}

And I'll get all the keys later using this.

let componentsArray = dict.allKeys()

This is using dataframes from the pandas package. The "index" part can be either a single index, a list of indices, or a list of booleans. This can be read about in the documentation: https://pandas.pydata.org/pandas-docs/stable/indexing.html

So the index part specifies a subset of the rows to pull out, and the (optional) column_name specifies the column you want to work with from that subset of the dataframe. So if you want to update the 'class' column but only in rows where the class is currently set as 'versicolor', you might do something like what you list in the question:

iris_data.loc[iris_data['class'] == 'versicolor', 'class'] = 'Iris-versicolor'

You can just use strstr() from <string.h>

$ man strstr

In loop with .map work like this:

{
    dataForm.map(({ id, placeholder, type }) => {
        return <Input
            value={this.state.type}
            onChangeText={(text) => this.setState({ [type]: text })}
            placeholder={placeholder}
            key={id} />
    })
}

Note the [] in type parameter. Hope this helps :)

Create a diagram for existing database schema or its subset as follows:

1. Click File ? Data Modeler ? Import ? Data Dictionary.
2. Select a DB connection (add one if none).
3. Click Next.
4. Check one or more schema names.
5. Click Next.
6. Check one or more objects to import.
7. Click Next.
8. Click Finish.

The ERD is displayed.

Export the diagram as follows:

1. Click File ? Data Modeler ? Print Diagram ? To Image File.
2. Browse to and select the export file location.
3. Click Save.

The diagram is exported. To export in a vector format, use To PDF File, instead. This allows for simplified editing using Inkscape (or other vector image editor).

These instructions may work for SQL Developer 3.2.09.23 to 4.1.3.20.

Inside the folder

TortoiseSVN -> Clean up...

Try out this one: "Pao" at http://pao-ide.info . It's still in development and not up to production use but it's quite unique in features. Basically, all the language constructs, such as assemblies, types, members, statements, expressions are treated as objects and are associated with rich operation options. You can enjoy features usually seen in graphical editors, such as multiple selection, multiple copy-paste, tagging, batch operation and very powerful search capability. It takes some getting used to but eventually might increase productivity. Right now, it only supports form applications though.

The default credentials are:

login: admin
password: admin

But if you use EAP these credentials are turned off by default and there is no active user (security reasons :)). If you want to turn on these users, you have to edit the following file in your current profile: ./deploy/management/console-mgr.sar/web-console.war/WEB-INF/classes/web-console-users.properties. It should be enough to remove the # sign from the line with the user.

If you want to create a new user, don't forget to set up the correct groups in web-console-roles.properties file.

You can easily find information where these information are stored: just open the ./conf/login-config.xml file and find the proper security domain definition. In the case of the Web Console application, it will be web-console policy.

Also if you want to have access to JMX, you have unlock JMX Console. Just check the following files in the conf/props/ directory (in your profile): jmx-console-users.properties and jmx-console-roles.properties.

there are a number of NSDate helpers on the web, I tend to use:

https://github.com/billymeltdown/nsdate-helper/

Readme extract below:

  NSString *displayString = [NSDate stringForDisplayFromDate:date];

This produces the following kinds of output:

‘3:42 AM’ – if the date is after midnight today
‘Tuesday’ – if the date is within the last seven days
‘Mar 1’ – if the date is within the current calendar year
‘Mar 1, 2008’ – else ;-)

Now there is the pandas_profiling package, which is a more complete alternative to df.describe().

If your pandas dataframe is df, the below will return a complete analysis including some warnings about missing values, skewness, etc. It presents histograms and correlation plots as well.

import pandas_profiling
pandas_profiling.ProfileReport(df)

See the example notebook detailing the usage.

Use RETURN QUERY:

CREATE OR REPLACE FUNCTION word_frequency(_max_tokens int)
  RETURNS TABLE (txt   text   -- also visible as OUT parameter inside function
               , cnt   bigint
               , ratio bigint) AS
$func$
BEGIN
   RETURN QUERY
   SELECT t.txt
        , count(*) AS cnt                 -- column alias only visible inside
        , (count(*) * 100) / _max_tokens  -- I added brackets
   FROM  (
      SELECT t.txt
      FROM   token t
      WHERE  t.chartype = 'ALPHABETIC'
      LIMIT  _max_tokens
      ) t
   GROUP  BY t.txt
   ORDER  BY cnt DESC;                    -- potential ambiguity 
END
$func$  LANGUAGE plpgsql;

Call:

SELECT * FROM word_frequency(123);

Explanation:

• It is much more practical to explicitly define the return type than simply declaring it as record. This way you don't have to provide a column definition list with every function call. RETURNS TABLE is one way to do that. There are others. Data types of OUT parameters have to match exactly what is returned by the query.

• Choose names for OUT parameters carefully. They are visible in the function body almost anywhere. Table-qualify columns of the same name to avoid conflicts or unexpected results. I did that for all columns in my example.

  But note the potential naming conflict between the OUT parameter cnt and the column alias of the same name. In this particular case (RETURN QUERY SELECT ...) Postgres uses the column alias over the OUT parameter either way. This can be ambiguous in other contexts, though. There are various ways to avoid any confusion:

  1. Use the ordinal position of the item in the SELECT list: ORDER BY 2 DESC. Example:
     • Select first row in each GROUP BY group?
  2. Repeat the expression ORDER BY count(*).
  3. (Not applicable here.) Set the configuration parameter plpgsql.variable_conflict or use the special command #variable_conflict error | use_variable | use_column in the function. See:
     • Naming conflict between function parameter and result of JOIN with USING clause

• Don't use "text" or "count" as column names. Both are legal to use in Postgres, but "count" is a reserved word in standard SQL and a basic function name and "text" is a basic data type. Can lead to confusing errors. I use txt and cnt in my examples.

• Added a missing ; and corrected a syntax error in the header. (_max_tokens int), not (int maxTokens) - type after name.

• While working with integer division, it's better to multiply first and divide later, to minimize the rounding error. Even better: work with numeric (or a floating point type). See below.

Alternative

This is what I think your query should actually look like (calculating a relative share per token):

CREATE OR REPLACE FUNCTION word_frequency(_max_tokens int)
  RETURNS TABLE (txt            text
               , abs_cnt        bigint
               , relative_share numeric) AS
$func$
BEGIN
   RETURN QUERY
   SELECT t.txt, t.cnt
        , round((t.cnt * 100) / (sum(t.cnt) OVER ()), 2)  -- AS relative_share
   FROM  (
      SELECT t.txt, count(*) AS cnt
      FROM   token t
      WHERE  t.chartype = 'ALPHABETIC'
      GROUP  BY t.txt
      ORDER  BY cnt DESC
      LIMIT  _max_tokens
      ) t
   ORDER  BY t.cnt DESC;
END
$func$  LANGUAGE plpgsql;

The expression sum(t.cnt) OVER () is a window function. You could use a CTE instead of the subquery - pretty, but a subquery is typically cheaper in simple cases like this one.

A final explicit RETURN statement is not required (but allowed) when working with OUT parameters or RETURNS TABLE (which makes implicit use of OUT parameters).

round() with two parameters only works for numeric types. count() in the subquery produces a bigint result and a sum() over this bigint produces a numeric result, thus we deal with a numeric number automatically and everything just falls into place.

My guess is that the directory ~/bin/sbt/bin is not in your PATH.

To execute programs or scripts that are in the current directory you need to prefix the command with ./, as in:

./sbt

This is a security feature in linux, so to prevent overriding of system commands (and other programs) by a malicious party dropping a file in your home directory (for example). Imagine a script called 'ls' that emails your /etc/passwd file to 3rd party before executing the ls command... Or one that executes 'rm -rf .'...

That said, unless you need something specific from the latest source code, you're best off doing what paradigmatic said in his post, and install it from the Typesafe repository.

ALTER won't do it because column order does not matter for storage or querying

If SQL Server, you'd have to use the SSMS Table Designer to arrange your columns, which can then generate a script which drops and recreates the table

Edit Jun 2013

Cross link to my answer here: Performance / Space implications when ordering SQL Server columns?

For Debian Jessie (which is the current default for the PHP image on Docker Hub):

apt-get install --yes zip unzip php-pclzip

You can omit the --yes, but it's useful when you're RUN-ing it in a Dockerfile.

If you're using a self hosted site like me, the way to avoid this problem (as described above) is to stipulate on both the host and client side that the wsHttpBinding security mode = NONE.

When creating the binding, both on the client and the host, you can use this code:

 Dim binding as System.ServiceModel.WSHttpBinding 
 binding= New System.ServiceModel.WSHttpBinding(System.ServiceModel.SecurityMode.None)

or

 System.ServiceModel.WSHttpBinding binding
 binding = new System.ServiceModel.WSHttpBinding(System.ServiceModel.SecurityMode.None);

slide_in_down.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:duration="@android:integer/config_longAnimTime"
        android:fromYDelta="0%p"
        android:toYDelta="100%p" />
</set>

slide_in_up.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:duration="@android:integer/config_longAnimTime"
        android:fromYDelta="100%p"
        android:toYDelta="0%p" />
</set>

slide_out_down.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:duration="@android:integer/config_longAnimTime"
        android:fromYDelta="-100%"
        android:toYDelta="0"
        />
</set>

slide_out_up.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:duration="@android:integer/config_longAnimTime"
        android:fromYDelta="0%p"
        android:toYDelta="-100%p"
        />
</set>

direction = down

            activity.getSupportFragmentManager()
                    .beginTransaction()
                    .setCustomAnimations(R.anim.slide_out_down, R.anim.slide_in_down)
                    .replace(R.id.container, new CardFrontFragment())
                    .commit();

direction = up

           activity.getSupportFragmentManager()
                    .beginTransaction()
                    .setCustomAnimations(R.anim.slide_in_up, R.anim.slide_out_up)
                    .replace(R.id.container, new CardFrontFragment())
                    .commit();

Recently I found a way around this. I wanted to create a method in the array class with an optional parameter, to keep or discard elements in the array.

The way I simulated this was by passing an array as the parameter, and then checking if the value at that index was nil or not.

class Array
  def ascii_to_text(params)
    param_len = params.length
    if param_len > 3 or param_len < 2 then raise "Invalid number of arguments #{param_len} for 2 || 3." end
    bottom  = params[0]
    top     = params[1]
    keep    = params[2]
    if keep.nil? == false
      if keep == 1
        self.map{|x| if x >= bottom and x <= top then x = x.chr else x = x.to_s end}
      else
        raise "Invalid option #{keep} at argument position 3 in #{p params}, must be 1 or nil"
      end
    else
      self.map{|x| if x >= bottom and x <= top then x = x.chr end}.compact
    end
  end
end

Trying out our class method with different parameters:

array = [1, 2, 97, 98, 99]
p array.ascii_to_text([32, 126, 1]) # Convert all ASCII values of 32-126 to their chr value otherwise keep it the same (That's what the optional 1 is for)

output: ["1", "2", "a", "b", "c"]

Okay, cool that works as planned. Now let's check and see what happens if we don't pass in the the third parameter option (1) in the array.

array = [1, 2, 97, 98, 99]
p array.ascii_to_text([32, 126]) # Convert all ASCII values of 32-126 to their chr value else remove it (1 isn't a parameter option)

output: ["a", "b", "c"]

As you can see, the third option in the array has been removed, thus initiating a different section in the method and removing all ASCII values that are not in our range (32-126)

Alternatively, we could had issued the value as nil in the parameters. Which would look similar to the following code block:

def ascii_to_text(top, bottom, keep = nil)
  if keep.nil?
    self.map{|x| if x >= bottom and x <= top then x = x.chr end}.compact
  else
    self.map{|x| if x >= bottom and x <= top then x = x.chr else x = x.to_s end}
end

Select / Option elements are rendered by the OS, not HTML. You cannot change the style for these elements.

Adding to this question if you ever have more than one columns to remap in a data dataframe:

def remap(data,dict_labels):
    """
    This function take in a dictionnary of labels : dict_labels 
    and replace the values (previously labelencode) into the string.

    ex: dict_labels = {{'col1':{1:'A',2:'B'}}

    """
    for field,values in dict_labels.items():
        print("I am remapping %s"%field)
        data.replace({field:values},inplace=True)
    print("DONE")

    return data

Hope it can be useful to someone.

Cheers

Using the multicol package and embedding your list in a multicols environment does what you want:

\documentclass{article}
\usepackage{multicol}

\begin{document}
\begin{multicols}{2}
\begin{enumerate}
    \item a
    \item b
    \item c
    \item d
    \item e
    \item f
\end{enumerate}
\end{multicols}
\end{document}

We had the same problem for accepting monetary values for Euro, since <input type="number" /> can't display Euro decimal and comma format.

We came up with a solution, to use <input type="number" /> for user input. After user types in the value, we format it and display as a Euro format by just switching to <input type="text" />. This is a Javascript solution though, cuz you need a condition to decide between "user is typing" and "display to user" modes.

Here the link with Visuals to our solution: Input field type "Currency" problem solved

Hope this helps in some way!

No need to import any library:

>>> bytearray.fromhex("7061756c").decode()
'paul'

You are not returning anything, at least from your snippet and comment.

const def = (props) => { <div></div> };

This is not returning anything, you are wrapping the body of the arrow function with curly braces but there is no return value.

const def = (props) => { return (<div></div>); }; OR const def = (props) => <div></div>;

These two solutions on the other hand are returning a valid React component. Keep also in mind that inside your jsx (as mentioned by @Adam) you can't have if ... else ... but only ternary operators.

A pointer to a class member function is not the same as a pointer to a function. A class member takes an implicit extra argument (the this pointer), and uses a different calling convention.

If your API expects a nonmember callback function, that's what you have to pass to it.

Since you're using formatters for the rest of it, just use DecimalFormat:

import java.text.DecimalFormat;

DecimalFormat xFormat = new DecimalFormat("000")
System.out.print(xFormat.format(x + 1) + " ");

Alternative you could do whole job in whole line using printf:

System.out.printf("%03d %s  %s    %s    \n",  x + 1, // the payment number
formatter.format(monthlyInterest),  // round our interest rate
formatter.format(principleAmt),
formatter.format(remainderAmt));

Schema in SQL Server is an object that conceptually holds definitions for other database objects such as tables,views,stored procedures etc.

The self answer given by MagngooSasa did the trick, but for anyone else trying to understand the answer, here are a few bit more details:

When developing Cordova apps with Visual Studio, I tried to import a remote JavaScript file [located here http://Guess.What.com/MyScript.js], but I have the error mentioned in the title.

Here is the meta tag before, in the index.html file of the project:

<meta http-equiv="Content-Security-Policy" content="default-src 'self' data: gap: https://ssl.gstatic.com 'unsafe-eval'; style-src 'self' 'unsafe-inline'; media-src *">

Here is the corrected meta tag, to allow importing a remote script:

<meta http-equiv="Content-Security-Policy" content="default-src 'self' data: gap: https://ssl.gstatic.com 'unsafe-eval'; style-src 'self' 'unsafe-inline'; media-src *;**script-src 'self' http://onlineerp.solution.quebec 'unsafe-inline' 'unsafe-eval';** ">

And no more error!

git rebase master is the proper way to do this. Merging would mean a commit would be created for the merge, while rebasing would not.

Assuming line of best fit for a set of points is:

y = a + b * x

b = ( sum(xi * yi) - n * xbar * ybar ) / sum((xi - xbar)^2)
a = ybar - b * xbar

Code and plot

# sample points 
X = [0, 5, 10, 15, 20]
Y = [0, 7, 10, 13, 20]

# solve for a and b
def best_fit(X, Y):

    xbar = sum(X)/len(X)
    ybar = sum(Y)/len(Y)
    n = len(X) # or len(Y)

    numer = sum([xi*yi for xi,yi in zip(X, Y)]) - n * xbar * ybar
    denum = sum([xi**2 for xi in X]) - n * xbar**2

    b = numer / denum
    a = ybar - b * xbar

    print('best fit line:\ny = {:.2f} + {:.2f}x'.format(a, b))

    return a, b

# solution
a, b = best_fit(X, Y)
#best fit line:
#y = 0.80 + 0.92x

# plot points and fit line
import matplotlib.pyplot as plt
plt.scatter(X, Y)
yfit = [a + b * xi for xi in X]
plt.plot(X, yfit)

UPDATE:

notebook version

It sounds like you made changes, committing them to master along the way, and now you want to combine them into a single commit.

If so, you want to rebase your commits, squashing them into a single commit.

I'm not entirely sure of what exactly you want, so I'm not going to tempt you with a script. But I suggest you read up on git rebase and the options for "squash"ing, and try a few things out.

This should do what you want:

sed 's/two.*/BLAH/'

$ echo "   one  two  three  five
>    four two  five five six
>    six  one  two seven four" | sed 's/two.*/BLAH/'
   one  BLAH
   four BLAH
   six  one  BLAH

The $ is unnecessary because the .* will finish at the end of the line anyways, and the g at the end is unnecessary because your first match will be the first two to the end of the line.

With jQuery you can use

$('#main-div .specific-class').length

otherwise in VanillaJS (from IE8 included) you may use

document.querySelectorAll('#main-div .specific-class').length;

From my end, I have tried all these and none of them worked. The most probable problem with this is that you have added more than one dependency, hence it is mandatory to wrap them in a <dependencies> </dependencies> tag. Hope it helps!

Kind of like @AymKdn's answer, but this will allow you to change the options without re-initializing the modal.

$('#myModal').data('modal').options.keyboard = false;

Or if you need to do multiple options, JavaScript's with comes in handy here!

with ($('#myModal').data("modal").options) {
    backdrop = 'static';
    keyboard = false;
}

If the modal is already open, these options will only take effect the next time the modal is opened.

<select id="ddlvalue" name="ddlvaluename">
<option value='0' disabled selected>Select Value</option>
<option value='1' >Value 1</option>
<option value='2' >Value 2</option>
</select>

<input type="submit" id="btn_submit" value="click me"/>



<script>
$('#btn_submit').on('click',function(){
      $('#ddlvalue').val(0);
});
</script>

Check out the apache config files. For Debian/Ubuntu theyre in /etc/apache2/sites-available/ for RedHat/CentOS/etc they're in /etc/httpd/conf.d/. If you've just installed it, the file in there is probably named default.

Make sure that the config file in there is pointing to the correct folder and then make sure your scripts are located there.

The line you're looking for in those files is DocumentRoot /path/to/directory.

For a blank install, your php files most likely needs to be in /var/www/.

What you'll also need to do is find your php.ini file, probably located at /etc/php5/apache2/php.ini or /etc/php.ini and find the entry for display_errors and switch it to On.

I had the same issue when I clone my project from Git and directly build the solution first time. Instead of that go to the local repository in file explorer and double click the solution file (.sln) solved my issue.

Assuming there will be no errors thrown, and you want to work on the top stash item in the list of available stashes:

git stash pop = git stash apply + git stash drop

if you are using mongoose try this,after mongoose connection

async ()=> await Mongoose.model("collectionName").updateMany({}, {$set: {newField: value}})

Starting in Python 3.7, you can use the breakpoint() built-in function to enter the debugger:

foo()
breakpoint()  # drop into the debugger at this point
bar()

By default, breakpoint() will import pdb and call pdb.set_trace(). However, you can control debugging behavior via sys.breakpointhook() and use of the environment variable PYTHONBREAKPOINT.

See PEP 553 for more information.

Add more columns when you have variable loops that repeat at different rates. I'm not sure explicitly what you're trying to do, but I think I've done something that could apply.

Creating a single loop in Excel is prettty simple. It actually does the work for you. Try this on a new workbook

1. Enter "1" in A1
2. Enter "=A1+1" in A2

A3 will automatically be "=A2+1" as you drag down. The first steps don't have to be that explicit. Excel will automatically recognize the pattern and count if you just put "2" in A2, but if we want B1-B5 to be "100" and B5-B10 to be "200" (counting up the same way) you can see why knowing how to do it explicitly matters. In this scenario, You just enter:

3. "100" in B1, drag through to B5 and
4. "=B1+100" in B6

B7 will automatically be "=B2+100" etc. as you drag down, so basically it increases every 5 rows infinitely. To make a loop of numbers 1-5 in column A:

5. Enter "=A1" in cell A6. As you drag down, it will automatically be "=A2" in cell A7, etc. because of the way that Excel does things.

So, now we have column A repeating numbers 1-5 while column B is increasing by 100 every 5 cells.You could make column B repeat, for instance, the numbers 100-900 in using the same method as you did with column A as a way to produce, for instance, each possible combination with multiple variables. Drag down the columns and they'll do it infinitely. I'm not explicitly addressing the scenario given, but if you follow the steps and understand them, the concept should give you an answer to the problem that involves adding more columns and concactinating or using them as your variables.

You can edit

/vendor/twig/twig/lib/Twig/Extension/Debug.php

and change the var_dump() functions to \Doctrine\Common\Util\Debug::dump()

Type hint are a recent addition to a dynamic language where for decades folks swore naming conventions as simple as Hungarian (object label with first letter b = Boolean, c = character, d = dictionary, i = integer, l = list, n = numeric, s = string, t= tuple) were not needed, too cumbersome, but now have decided that, oh wait ... it is way too much trouble to use the language (type()) to recognize objects, and our fancy IDEs need help doing anything that complicated, and that dynamically assigned object values make them completely useless anyhow, whereas a simple naming convention could have resolved all of it, for any developer, at a mere glance.

We should set to overflow: auto and hide a scrollbar which we don't use for working on unsupporting CSS3 browser. Look at this CSS Overflow; XME.im

You can do that using Requestify, a very simple and cool HTTP client I wrote for nodeJS, it support easy use of cookies and it also supports caching.

To perform a request with a cookie attached just do the following:

var requestify = require('requestify');
requestify.post('http://google.com', {}, {
    cookies: {
        sessionCookie: 'session-cookie-data'   
    }
});

Try to find the exact line which causing this problem and then enforce UTF8 coding, this solution worked for me.

title.to_s.force_encoding("UTF-8")

There is a much easier way to compile and run C code using GCC, no configuration needed:

1. Install the Code Runner Extension
2. Open your C code file in Text Editor, then use shortcut Ctrl+Alt+N, or press F1 and then select/type Run Code, or right click the Text Editor and then click Run Code in context menu, the code will be compiled and run, and the output will be shown in the Output Window.

Moreover you could update the config in settings.json using different C compilers as you want, the default config for C is as below:

"code-runner.executorMap": {
    "c": "gcc $fullFileName && ./a.out"
}

The solution offered by Rob Elsner in one of the comments above works perfectly (OSX 10.9, Eclipse Kepler). One has to append their additional paths to that separated by ":".

You could also use ${system_property:java.library.path} – Rob Elsner Nov 22 '10 at 23:01

For windows eclipse using java: Windows -> Preferences -> Java -> Editor -> Folding

Unfortunately this will not allow for collapsing code, however if it turns off you can re-enable it to get rid of long comments and imports.

To stop the service we must use the method stopService():

  Intent myService = new Intent(MainActivity.this, BackgroundSoundService.class);
  //startService(myService);
  stopService(myService);

then the method onDestroy() in the service is called:

  @Override
    public void onDestroy() {

        Log.i(TAG, "onCreate() , service stopped...");
    }

Here is a complete example including how to stop the service.

Perhaps this is specific to .net core, I found DisplayName would not work but Display(Name=...) does. This may save someone else the troubleshooting involved :)

//using statements
using System;
using System.ComponentModel.DataAnnotations;  //needed for Display annotation
using System.ComponentModel;  //needed for DisplayName annotation

public class Whatever
{
    //Property
    [Display(Name ="Release Date")]
    public DateTime ReleaseDate { get; set; }
}


//cshtml file
@Html.DisplayNameFor(model => model.ReleaseDate)

This is a very nice and short solution:

smartTime(time) {
  return time < 10 ? "0" + time.toString().trim() : time;
}

Try this one -

SELECT *
FROM ...
WHERE EXISTS(SELECT 1 
        FROM sys.columns c
        WHERE c.[object_id] = OBJECT_ID('dbo.Tags')
            AND c.name = 'ModifiedByUser'
    )

Use the Font Class to set the control's font and styles.

Try Font Constructor (String, Single)

Label lab  = new Label();
lab.Text ="Font Bold at 24";
lab.Font = new Font("Arial", 20);

or

lab.Font = new Font(FontFamily.GenericSansSerif,
            12.0F, FontStyle.Bold);

To get installed fonts refer this - .NET System.Drawing.Font - Get Available Sizes and Styles

You could do it like that:

File folder = new File("your/path");
File[] listOfFiles = folder.listFiles();

for (int i = 0; i < listOfFiles.length; i++) {
  if (listOfFiles[i].isFile()) {
    System.out.println("File " + listOfFiles[i].getName());
  } else if (listOfFiles[i].isDirectory()) {
    System.out.println("Directory " + listOfFiles[i].getName());
  }
}

Do you want to only get JPEG files or all files?

Try this:

[(i, j) for i, j in enumerate(mylist)]

You need to put i,j inside a tuple for the list comprehension to work. Alternatively, given that enumerate() already returns a tuple, you can return it directly without unpacking it first:

[pair for pair in enumerate(mylist)]

Either way, the result that gets returned is as expected:

> [(0, 'a'), (1, 'b'), (2, 'c'), (3, 'd')]

Would I just override the drawRect method?

Yes:

- (void)drawRect:(CGRect)rect
{
    CGContextRef ctx = UIGraphicsGetCurrentContext();
    CGContextAddEllipseInRect(ctx, rect);
    CGContextSetFillColor(ctx, CGColorGetComponents([[UIColor blueColor] CGColor]));
    CGContextFillPath(ctx);
}

Also, would it be okay to change the frame of that view within the class itself?

Ideally not, but you could.

Or do I need to change the frame from a different class?

I'd let the parent control that.

Using reflect.deepEqual also works, especially when you have map inside the struct

package main

import "fmt"
import "time"
import "reflect"

type Session struct {
    playerId string
    beehive string
    timestamp time.Time
}

func (s Session) IsEmpty() bool {
  return reflect.DeepEqual(s,Session{})
}

func main() {
  x := Session{}
  if x.IsEmpty() {
    fmt.Print("is empty")
  } 
}

A Java String is an Object. (String extends Object.)

So you can get an Object reference via assignment/initialisation:

String a = "abc";
Object b = a;

If @myInt is zero it means no rows in the table: it would be NULL if never set at all.

COUNT will always return a row, even for no rows in a table.

Edit, Apr 2012: the rules for this are described in my answer here:Does COUNT(*) always return a result?

Your count/assign is correct but could be either way:

select @myInt = COUNT(*) from myTable
set @myInt = (select COUNT(*) from myTable)

However, if you are just looking for the existence of rows, (NOT) EXISTS is more efficient:

IF NOT EXISTS (SELECT * FROM myTable)

Just as another option, the latest PoshConsole release includes binaries targeted to .NET 4 RC (which work fine against the RTM release) without any configuration.

If you want to overwrite the element with key 0

function[0] = 42;

Otherwise:

function.insert(std::make_pair(0, 42));

• JMXConsoleTools
• eclipse-jmx
• ServiceMixJMXConsole

Specify dataType: "html".

If you do not jQuery will guess the requested data type (check: http://api.jquery.com/jQuery.ajax/). My guess is that in your case response was a String rather than a DOMObject. Obviously DOM methods won't work on a String.

You could test that with console.log("type of response: " + typeof response) (or alert("type of response:" + typeof response), in case you don't run Firebug)

There are different methods to deserialize json string to an object. All above methods are acceptable but I suggest using a library to prevent duplicate key issues or serializing/deserializing of nested objects.

Pykson, is a JSON Serializer and Deserializer for Python which can help you achieve. Simply define Payload class model as JsonObject then use Pykson to convert json string to object.

from pykson import Pykson, JsonObject, StringField

class Payload(pykson.JsonObject):
    action = StringField()
    method = StringField()
    data = StringField()

json_text = '{"action":"print","method":"onData","data":"Madan Mohan"}'
payload = Pykson.from_json(json_text, Payload)

Click on new file in github repo online. Then write file name as myfolder/myfilename then give file contents and commit. Then file will be created within that new folder.

getClass().getResource(path) loads resources from the classpath, not from a filesystem path.

If you want to add a bounding box, use a rectangle:

ax = plt.gca()
r = matplotlib.patches.Rectangle((.5, .5), .25, .1, fill=False)
ax.add_artist(r)

Rectangle doc

 public static JSONObject doPostRequestWithSingleFile(String url,HashMap<String, String> data, File file,String fileParam) {

        try {
            final MediaType MEDIA_TYPE_PNG = MediaType.parse("image/png");

            RequestBody requestBody;
            MultipartBuilder mBuilder = new MultipartBuilder().type(MultipartBuilder.FORM);

            for (String key : data.keySet()) {
                String value = data.get(key);
                Utility.printLog("Key Values", key + "-----------------" + value);

                mBuilder.addFormDataPart(key, value);

            }
            if(file!=null) {
                Log.e("File Name", file.getName() + "===========");
                if (file.exists()) {
                    mBuilder.addFormDataPart(fileParam, file.getName(), RequestBody.create(MEDIA_TYPE_PNG, file));
                }
            }
            requestBody = mBuilder.build();
            Request request = new Request.Builder()
                    .url(url)
                    .post(requestBody)
                    .build();

            OkHttpClient client = new OkHttpClient();
            Response response = client.newCall(request).execute();
            String result=response.body().string();
            Utility.printLog("Response",result+"");
            return new JSONObject(result);

        } catch (UnknownHostException | UnsupportedEncodingException e) {
            Log.e(TAG, "Error: " + e.getLocalizedMessage());
            JSONObject jsonObject=new JSONObject();

            try {
                jsonObject.put("status","false");
                jsonObject.put("message",e.getLocalizedMessage());
            } catch (JSONException e1) {
                e1.printStackTrace();
            }
        } catch (Exception e) {
            Log.e(TAG, "Other Error: " + e.getMessage());
            JSONObject jsonObject=new JSONObject();

            try {
                jsonObject.put("status","false");
                jsonObject.put("message",e.getLocalizedMessage());
            } catch (JSONException e1) {
                e1.printStackTrace();
            }
        }
        return null;
    }
    public static JSONObject doGetRequest(HashMap<String, String> param,String url) {
        JSONObject result = null;
        String response;
        Set keys = param.keySet();

        int count = 0;
        for (Iterator i = keys.iterator(); i.hasNext(); ) {
            count++;
            String key = (String) i.next();
            String value = (String) param.get(key);
            if (count == param.size()) {
                Log.e("Key",key+"");
                Log.e("Value",value+"");
                url += key + "=" + URLEncoder.encode(value);

            } else {
                Log.e("Key",key+"");
                Log.e("Value",value+"");

                url += key + "=" + URLEncoder.encode(value) + "&";
            }

        }
/*
        try {
            url=  URLEncoder.encode(url, "utf-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }*/
        Log.e("URL", url);
        OkHttpClient client = new OkHttpClient();

        Request request = new Request.Builder()
                .url(url)
                .build();
        Response responseClient = null;
        try {


            responseClient = client.newCall(request).execute();
            response = responseClient.body().string();
            result = new JSONObject(response);
            Log.e("response", response+"==============");
        } catch (Exception e) {
            JSONObject jsonObject=new JSONObject();

            try {
                jsonObject.put("status","false");
                jsonObject.put("message",e.getLocalizedMessage());
                return  jsonObject;
            } catch (JSONException e1) {
                e1.printStackTrace();
            }
            e.printStackTrace();
        }

        return result;

    }

You can use the available meta data:

  DatabaseMetaData meta = con.getMetaData();
  ResultSet res = meta.getTables(null, null, "My_Table_Name", 
     new String[] {"TABLE"});
  while (res.next()) {
     System.out.println(
        "   "+res.getString("TABLE_CAT") 
       + ", "+res.getString("TABLE_SCHEM")
       + ", "+res.getString("TABLE_NAME")
       + ", "+res.getString("TABLE_TYPE")
       + ", "+res.getString("REMARKS")); 
  }

See here for more details. Note also the caveats in the JavaDoc.

As a beginner who stumbled across this thread, I'd like to add a python-for-dummies adaptation of abevieiramota's very neat answer (because I'm at the level that I had to look up 'ravel' to work out what their code was doing):

import numpy as np
import matplotlib.pyplot as plt

fig, ((ax1,ax2,ax3),(ax4,ax5,ax6)) = plt.subplots(2,3)

axlist = [ax1,ax2,ax3,ax4,ax5,ax6]

first = ax1.imshow(np.random.random((10,10)), vmin=0, vmax=1)
third = ax3.imshow(np.random.random((12,12)), vmin=0, vmax=1)

fig.colorbar(first, ax=axlist)

plt.show()

Much less pythonic, much easier for noobs like me to see what's actually happening here.

I have recently discovered that minidlna doesn't update the database if the media file is a hardlink. If you want these files to show up in the database, a full rescan is necessary.

ex: If you have a file /home/movies/foo.mkv and a hardlink in /home/minidlna/video/foo.mkv, where '/home/minidlna' is your minidlna share, you will have to do a rescan till that file appears in the db (and subsequently your dlna client).

I'm still trying to find a way around this. If anyone has any input, it's most welcome.

i just change gradle version classpath 'com.android.tools.build:gradle:3.5.3' to classpath 'com.android.tools.build:gradle:3.3.2' and now working.

check Robocopy:

ROBOCOPY \\server-source\c$\VMExports\ C:\VMExports\ /E /COPY:DAT

make sure you check what robocopy parameter you want. this is just an example. type robocopy /? in a comandline/powershell on your windows system.

Short answer: it's closely related to the Content-Security-Policy: upgrade-insecure-requests response header, indicating that the browser supports it (and in fact prefers it).

It took me 30mins of Googling, but I finally found it buried in the W3 spec.

The confusion comes because the header in the spec was HTTPS: 1, and this is how Chromium implemented it, but after this broke lots of websites that were poorly coded (particularly WordPress and WooCommerce) the Chromium team apologized:

"I apologize for the breakage; I apparently underestimated the impact based on the feedback during dev and beta."
— Mike West, in Chrome Issue 501842

Their fix was to rename it to Upgrade-Insecure-Requests: 1, and the spec has since been updated to match.

Anyway, here is the explanation from the W3 spec (as it appeared at the time)...

The HTTPS HTTP request header field sends a signal to the server expressing the client’s preference for an encrypted and authenticated response, and that it can successfully handle the upgrade-insecure-requests directive in order to make that preference as seamless as possible to provide.

...

When a server encounters this preference in an HTTP request’s headers, it SHOULD redirect the user to a potentially secure representation of the resource being requested.

When a server encounters this preference in an HTTPS request’s headers, it SHOULD include a Strict-Transport-Security header in the response if the request’s host is HSTS-safe or conditionally HSTS-safe [RFC6797].

I had to

.datepicker.dropdown-menu {
    position: relative;
    z-index: 9999 !important;
}

Note: Below applies to Python 3.3+ because it uses yield_from. six is also a third-party package, though it is stable. Alternately, you could use sys.version.

In the case of obj = [[1, 2,], [3, 4], [5, 6]], all of the solutions here are good, including list comprehension and itertools.chain.from_iterable.

However, consider this slightly more complex case:

>>> obj = [[1, 2, 3], [4, 5], 6, 'abc', [7], [8, [9, 10]]]

There are several problems here:

• One element, 6, is just a scalar; it's not iterable, so the above routes will fail here.
• One element, 'abc', is technically iterable (all strs are). However, reading between the lines a bit, you don't want to treat it as such--you want to treat it as a single element.
• The final element, [8, [9, 10]] is itself a nested iterable. Basic list comprehension and chain.from_iterable only extract "1 level down."

You can remedy this as follows:

>>> from collections import Iterable
>>> from six import string_types

>>> def flatten(obj):
...     for i in obj:
...         if isinstance(i, Iterable) and not isinstance(i, string_types):
...             yield from flatten(i)
...         else:
...             yield i


>>> list(flatten(obj))
[1, 2, 3, 4, 5, 6, 'abc', 7, 8, 9, 10]

Here, you check that the sub-element (1) is iterable with Iterable, an ABC from itertools, but also want to ensure that (2) the element is not "string-like."

run from CMD & %path%=set to mysql/bin

mysql_upgrade -u user -ppassword

You can use a HTML table:

<table>
<tr>
<td>
<div id="bloc1">your content</div>
</td>
<td>
<div id="bloc2">your content</div>
</td>
</tr>
</table>   

The link of accepted answer is old and can cause warnings with generics use,

You should download latest jar from JSON-java github site

Add jar to Java build Path

In existing project in Order and Export tab move the new jar, as json-20180813.jar, as the first (or above other dependencies with JSONObject)

No, unless you want to break compatibility and your compiler supports it.

The idea behind reporting progress with the background worker is through sending a 'percent completed' event. You are yourself responsible for determining somehow 'how much' work has been completed. Unfortunately this is often the most difficult part.

In your case, the bulk of the work is database-related. There is to my knowledge no way to get progress information from the DB directly. What you can try to do however, is split up the work dynamically. E.g., if you need to read a lot of data, a naive way to implement this could be.

• Determine how many rows are to be retrieved (SELECT COUNT(*) FROM ...)

• Divide the actual reading in smaller chunks, reporting progress every time one chunk is completed:

  for (int i = 0; i < count; i++)
  {
      bgWorker.ReportProgress((100 * i) / count);
      // ... (read data for step i)
  }
  

show table status from database_name;

It will list all tables from the mentioned database.
Example output

show table status where name=your_desired_table_name;

It will show the storage engine used by the mentioned table.