Programs & Examples On #File browser

I just add this in my CSS file and it works:

.custom-file-label::after{content: 'New Text Button' !important;}

Based on Remi answer for Python 2.7+ use this:

from __future__ import print_function
import time

# status generator
def range_with_status(total):
    """ iterate from 0 to total and show progress in console """
    import sys
    n = 0
    while n < total:
        done = '#' * (n + 1)
        todo = '-' * (total - n - 1)
        s = '<{0}>'.format(done + todo)
        if not todo:
            s += '\n'
        if n > 0:
            s = '\r' + s
        print(s, end='\r')
        sys.stdout.flush()
        yield n
        n += 1


# example for use of status generator
for i in range_with_status(50):
    time.sleep(0.2)

Maybe this method can be used for quick solution.

public class TestUtility
{ 
    public static File getInternalResource(String relativePath)
    {
        File resourceFile = null;
        URL location = TestUtility.class.getProtectionDomain().getCodeSource().getLocation();
        String codeLocation = location.toString();
        try{
            if (codeLocation.endsWith(".jar"){
                //Call from jar
                Path path = Paths.get(location.toURI()).resolve("../classes/" + relativePath).normalize();
                resourceFile = path.toFile();
            }else{
                //Call from IDE
                resourceFile = new File(TestUtility.class.getClassLoader().getResource(relativePath).getPath());
            }
        }catch(URISyntaxException ex){
            ex.printStackTrace();
        }
        return resourceFile;
    }
}

Using plain java:

    String s = "1234567890";
    List<String> list = new Scanner(s).findAll("...").map(MatchResult::group).collect(Collectors.toList());
    System.out.printf("%s%n", list);

Produces the output:

[123, 456, 789]

Note that this discards leftover characters (0 in this case).

Using jdk7-u221, I was need to install the Java Cryptography Extension (JCE)

Java Cryptography Extension JCE

<li>s don't have a value - only form inputs do. In fact, you're not supposed to even include the value attribute in the HTML for <li>s.

You can rely on .innerHTML instead:

getPaging(this.innerHTML)

Or maybe the id:

getPaging(this.id);

However, it's easier (and better practice) to add the click handlers from JavaScript code, and not include them in the HTML. Seeing as you're already using jQuery, this can easily be done by changing your HTML to:

<li class="clickMe">1</li>
<li class="clickMe">2</li>

And use the following JavaScript:

$(function () {
    $('.clickMe').click(function () {
        var str = $(this).text();
        $('#loading-content').load('dataSearch.php?' + str, hideLoader);
    });
});

This will add the same click handler to all your <li class="clickMe">s, without requiring you to duplicate your onclick="getPaging(this.value)" code for each of them.

There is a UDF that will do that described here:

User Defined Function to Strip HTML

CREATE FUNCTION [dbo].[udf_StripHTML] (@HTMLText VARCHAR(MAX))
RETURNS VARCHAR(MAX) AS
BEGIN
    DECLARE @Start INT
    DECLARE @End INT
    DECLARE @Length INT
    SET @Start = CHARINDEX('<',@HTMLText)
    SET @End = CHARINDEX('>',@HTMLText,CHARINDEX('<',@HTMLText))
    SET @Length = (@End - @Start) + 1
    WHILE @Start > 0 AND @End > 0 AND @Length > 0
    BEGIN
        SET @HTMLText = STUFF(@HTMLText,@Start,@Length,'')
        SET @Start = CHARINDEX('<',@HTMLText)
        SET @End = CHARINDEX('>',@HTMLText,CHARINDEX('<',@HTMLText))
        SET @Length = (@End - @Start) + 1
    END
    RETURN LTRIM(RTRIM(@HTMLText))
END
GO

Edit: note this is for SQL Server 2005, but if you change the keyword MAX to something like 4000, it will work in SQL Server 2000 as well.

'nunique' is an option for .agg() since pandas 0.20.0, so:

df.groupby('date').agg({'duration': 'sum', 'user_id': 'nunique'})

Use __name__ attribute:

# foo.py
def bar():
    print(f"my name is {bar.__name__}")

You can easily access function's name from within the function using __name__ attribute.

>>> def bar():
...     print(f"my name is {bar.__name__}")
...
>>> bar()
my name is bar

I've come across this question myself several times, looking for the ways to do it. Correct answer is contained in the Python's documentation (see Callable types section).

Every function has a __name__ parameter that returns its name and even __qualname__ parameter that returns its full name, including which class it belongs to (see Qualified name).

I found this very helpful creating a feathersjs before hook to populate a 2 ref level deep relation. The mongoose models simply have

tables = new Schema({
  ..
  tableTypesB: { type: Schema.Types.ObjectId, ref: 'tableTypesB' },
  ..
}
tableTypesB = new Schema({
  ..
  tableType: { type: Schema.Types.ObjectId, ref: 'tableTypes' },
  ..
}

then in feathersjs before hook:

module.exports = function(options = {}) {
  return function populateTables(hook) {
    hook.params.query.$populate = {
      path: 'tableTypesB',
      populate: { path: 'tableType' }
    }

    return Promise.resolve(hook)
  }
}

So simple compared to some other methods I was trying to achieve this.

Why are you so sure you will not debug release builds? Sometimes (hopefully rarely but happens) you may get a defect report from a customer that is not reproducible in the debug version for some reason (different timings, small different behaviour or whatever). If that issue appears to be reproducible in the release build you'll be happy to have the matching pdb.

Check out CORS enabled image from MDN. Basically you must have a server hosting images with the appropriate Access-Control-Allow-Origin header.

<IfModule mod_setenvif.c>
    <IfModule mod_headers.c>
        <FilesMatch "\.(cur|gif|ico|jpe?g|png|svgz?|webp)$">
            SetEnvIf Origin ":" IS_CORS
            Header set Access-Control-Allow-Origin "*" env=IS_CORS
        </FilesMatch>
    </IfModule>
</IfModule>

You will be able to save those images to DOM Storage as if they were served from your domain otherwise you will run into security issue.

var img = new Image,
    canvas = document.createElement("canvas"),
    ctx = canvas.getContext("2d"),
    src = "http://example.com/image"; // insert image url here

img.crossOrigin = "Anonymous";

img.onload = function() {
    canvas.width = img.width;
    canvas.height = img.height;
    ctx.drawImage( img, 0, 0 );
    localStorage.setItem( "savedImageData", canvas.toDataURL("image/png") );
}
img.src = src;
// make sure the load event fires for cached images too
if ( img.complete || img.complete === undefined ) {
    img.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
    img.src = src;
}

    select empno,salary from emp e
     where 3 > ( Select count(salary) from emp
      where e.salary < salary )


Another way :

    select * from
    (
    select empno,salary,
    Rank() over(order by salary desc) as rank from emp )
    where Rank <= 3;

Another Way :

    select * from
    (
    select empno,salary from emp
    order by salary desc
    )
    where rownum <= 3;

My personal understanding of the "nonlocal" statement (and do excuse me as I am new to Python and Programming in general) is that the "nonlocal" is a way to use the Global functionality within iterated functions rather than the body of the code itself. A Global statement between functions if you will.

in this scenario:

DELETE FROM tableA
WHERE (SELECT q.entitynum
FROM tableA q
INNER JOIN tableB u on (u.qlabel = q.entityrole AND u.fieldnum = q.fieldnum) 
WHERE (LENGTH(q.memotext) NOT IN (8,9,10) 
OR q.memotext NOT LIKE '%/%/%')
AND (u.FldFormat = 'Date'));

aren't you missing the column you want to compare to? example:

DELETE FROM tableA
WHERE entitynum in (SELECT q.entitynum
FROM tableA q
INNER JOIN tableB u on (u.qlabel = q.entityrole AND u.fieldnum = q.fieldnum) 
WHERE (LENGTH(q.memotext) NOT IN (8,9,10) 
OR q.memotext NOT LIKE '%/%/%')
AND (u.FldFormat = 'Date'));    

I assume it's that column since in your select statement you're selecting from the same table you're wanting to delete from with that column.

If time_created is a unix timestamp (int), you should be able to use something like this:

DELETE FROM locks WHERE time_created < (UNIX_TIMESTAMP() - 600);

(600 seconds = 10 minutes - obviously)

Otherwise (if time_created is mysql timestamp), you could try this:

DELETE FROM locks WHERE time_created < (NOW() - INTERVAL 10 MINUTE)

This question -- Why do Sublime Text 3 Themes not affect the sidebar? -- helped me out.

The steps I followed:

1. Preferences
2. Browse Packages...
3. Go into the User folder (equivalent to going to %AppData%\Sublime Text 3\Packages\User)
4. Make a new text file in this folder called Default.sublime-theme
5. Add JSON styles here -- for a template, check out https://gist.github.com/MrDrews/5434948

const string message = "Hello" + ",world" + exclam;

The + operator has left-to-right associativity, so the equivalent parenthesized expression is:

const string message = (("Hello" + ",world") + exclam);

As you can see, the two string literals "Hello" and ",world" are "added" first, hence the error.

One of the first two strings being concatenated must be a std::string object:

const string message = string("Hello") + ",world" + exclam;

Alternatively, you can force the second + to be evaluated first by parenthesizing that part of the expression:

const string message = "Hello" + (",world" + exclam);

It makes sense that your first example (hello + ",world" + "!") works because the std::string (hello) is one of the arguments to the leftmost +. That + is evaluated, the result is a std::string object with the concatenated string, and that resulting std::string is then concatenated with the "!".

As for why you can't concatenate two string literals using +, it is because a string literal is just an array of characters (a const char [N] where N is the length of the string plus one, for the null terminator). When you use an array in most contexts, it is converted into a pointer to its initial element.

So, when you try to do "Hello" + ",world", what you're really trying to do is add two const char*s together, which isn't possible (what would it mean to add two pointers together?) and if it was it wouldn't do what you wanted it to do.

Note that you can concatenate string literals by placing them next to each other; for example, the following two are equivalent:

"Hello" ",world"
"Hello,world"

This is useful if you have a long string literal that you want to break up onto multiple lines. They have to be string literals, though: this won't work with const char* pointers or const char[N] arrays.

To detect WIFI connection state, I have used CONNECTIVITY_ACTION from ConnectivityManager class so:

    IntentFilter filter=new IntentFilter();
    filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    registerReceiver(receiver, filter);

and from your BroadCastReceiver:

    if (ConnectivityManager.CONNECTIVITY_ACTION.equals(action)) {
        int networkType = intent.getIntExtra(
                android.net.ConnectivityManager.EXTRA_NETWORK_TYPE, -1);
        if (ConnectivityManager.TYPE_WIFI == networkType) {
            NetworkInfo networkInfo = (NetworkInfo) intent
                    .getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
            if (networkInfo != null) {
                if (networkInfo.isConnected()) {

                    // TODO: wifi is connected
                } else {
                    // TODO: wifi is not connected
                }
            }
        }

    }

ps:works fine for me:)

cmd.exe is located in different locations in different versions of Windows. To avoid needing the location of cmd.exe, you can use the command moogs wrote without calling "cmd.exe /C".

Here's an example that worked for me:

1. Open Command Prompt
2. Change directory to where your application's .exe file is located.
3. Execute the following command: runas /user:domain\username Application.exe

So the final step will look something like this in Command Prompt:

C:\Projects\MyProject\bin\Debug>runas /user:domain\username Application.exe

Note: the domain name was required in my situation.

We had the same problem on a CentOS7 machine. Disabling the VERIFYHOST VERIFYPEER did not solve the problem, we did not have the cURL error anymore but the response still was invalid. Doing a wget to the same link as the cURL was doing also resulted in a certificate error.

-> Our solution also was to reboot the VPS, this solved it and we were able to complete the request again.

For us this seemed to be a memory corruption problem. Rebooting the VPS reloaded the libary in the memory again and now it works. So if the above solution from @clover does not work try to reboot your machine.

MSDN has provided easy way to debug the stored procedure. Please check this link-
How to: Debug Stored Procedures

Here's a jsfiddle with a function call: https://jsfiddle.net/8282emwn/

var marker = new L.Marker([46.947, 7.4448]).on('click', markerOnClick).addTo(map);

function markerOnClick(e)
{
  alert("hi. you clicked the marker at " + e.latlng);
}

It seems like what you want is http://msdn.microsoft.com/en-us/library/ms186323.aspx.

In your example it would be (starts with):

set @isExpress = (CharIndex('Express Edition', @edition) = 1)

Or contains

set @isExpress = (CharIndex('Express Edition', @edition) >= 1)

Whenever I start thinking about CORS, my intuition about which site hosts the headers is incorrect, just as you described in your question. For me, it helps to think about the purpose of the same origin policy.

The purpose of the same origin policy is to protect you from malicious JavaScript on siteA.com accessing private information you've chosen to share only with siteB.com. Without the same origin policy, JavaScript written by the authors of siteA.com could make your browser make requests to siteB.com, using your authentication cookies for siteB.com. In this way, siteA.com could steal the secret information you share with siteB.com.

Sometimes you need to work cross domain, which is where CORS comes in. CORS relaxes the same origin policy for domainB.com, using the Access-Control-Allow-Origin header to list other domains (domainA.com) that are trusted to run JavaScript that can interact with domainA.com.

To understand which domain should serve the CORS headers, consider this. You visit malicious.com, which contains some JavaScript that tries to make a cross domain request to mybank.com. It should be up to mybank.com, not malicious.com, to decide whether or not it sets CORS headers that relax the same origin policy allowing the JavaScript from malicious.com to interact with it. If malicous.com could set its own CORS headers allowing its own JavaScript access to mybank.com, this would completely nullify the same origin policy.

I think the reason for my bad intuition is the point of view I have when developing a site. It's my site, with all my JavaScript, therefore it isn't doing anything malicious and it should be up to me to specify which other sites my JavaScript can interact with. When in fact I should be thinking which other sites JavaScript are trying to interact with my site and should I use CORS to allow them?

The receiver must set port of receiver to match port set in sender DatagramPacket. For debugging try listening on port > 1024 (e.g. 8000 or 9000). Ports < 1024 are typically used by system services and need admin access to bind on such a port.

If the receiver sends packet to the hard-coded port it's listening to (e.g. port 57) and the sender is on the same machine then you would create a loopback to the receiver itself. Always use the port specified from the packet and in case of production software would need a check in any case to prevent such a case.

Another reason a packet won't get to destination is the wrong IP address specified in the sender. UDP unlike TCP will attempt to send out a packet even if the address is unreachable and the sender will not receive an error indication. You can check this by printing the address in the receiver as a precaution for debugging.

In the sender you set:

 byte [] IP= { (byte)192, (byte)168, 1, 106 };
 InetAddress address = InetAddress.getByAddress(IP);

but might be simpler to use the address in string form:

 InetAddress address = InetAddress.getByName("192.168.1.106");

In other words, you set target as 192.168.1.106. If this is not the receiver then you won't get the packet.

Here's a simple UDP Receiver that works :

import java.io.IOException;
import java.net.*;

public class Receiver {

    public static void main(String[] args) {
        int port = args.length == 0 ? 57 : Integer.parseInt(args[0]);
        new Receiver().run(port);
    }

    public void run(int port) {    
      try {
        DatagramSocket serverSocket = new DatagramSocket(port);
        byte[] receiveData = new byte[8];
        String sendString = "polo";
        byte[] sendData = sendString.getBytes("UTF-8");

        System.out.printf("Listening on udp:%s:%d%n",
                InetAddress.getLocalHost().getHostAddress(), port);     
        DatagramPacket receivePacket = new DatagramPacket(receiveData,
                           receiveData.length);

        while(true)
        {
              serverSocket.receive(receivePacket);
              String sentence = new String( receivePacket.getData(), 0,
                                 receivePacket.getLength() );
              System.out.println("RECEIVED: " + sentence);
              // now send acknowledgement packet back to sender     
              DatagramPacket sendPacket = new DatagramPacket(sendData, sendData.length,
                   receivePacket.getAddress(), receivePacket.getPort());
              serverSocket.send(sendPacket);
        }
      } catch (IOException e) {
              System.out.println(e);
      }
      // should close serverSocket in finally block
    }
}

One thing you can do is this:

$(this)[0].value = "Something";

This allows jQuery to return the javascript object for that element, and you can bypass jQuery Functions.

Instead of using the pyodbc library, use the pypyodbc library... This worked for me.

import pypyodbc

conn = pypyodbc.connect("DRIVER={SQL Server};"
                    "SERVER=server;"
                    "DATABASE=database;"
                    "Trusted_Connection=yes;")

cursor = conn.cursor()
cursor.execute('SELECT * FROM [table]')

for row in cursor:
    print('row = %r' % (row,))

I like to use np.vectorize for such tasks. Consider the following:

>>> # Arrays
>>> x = np.array([5, 2, 3, 1, 4, 5])
>>> y = np.array(['f','o','o','b','a','r'])

>>> # Function containing the constraints
>>> func = np.vectorize(lambda t: t>1 and t<5)

>>> # Call function on x
>>> y[func(x)]
>>> array(['o', 'o', 'a'], dtype='<U1')

The advantage is you can add many more types of constraints in the vectorized function.

Hope it helps.

If you're not wanting to save changes set savechanges to false

    Sub CloseBook2()
        ActiveWorkbook.Close savechanges:=False
    End Sub

for more examples, http://support.microsoft.com/kb/213428 and i believe in the past I've just used

    ActiveWorkbook.Close False

Make UIImageView and UILabel, and set image and text to both of this....then Place a custom button over imageView and Label....

UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"search.png"]];
    imageView.frame = CGRectMake(x, y, imageView.frame.size.width, imageView.frame.size.height);
    [self.view addSubview:imageView];

UILabel *yourLabel = [[UILabel alloc] initWithFrame:CGRectMake(x, y,a,b)];
yourLabel.text = @"raj";
[self.view addSubview:yourLabel];

UIButton * yourBtn=[UIButton buttonWithType:UIButtonTypeCustom];
[yourBtn setFrame:CGRectMake(x, y,c,d)];
[yourBtn addTarget:self action:@selector(@"Your Action") forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:yourBtn];  

Declare your dim as a variant, and pull the data as you would from an array. i.e.

Dim y As Variant
y = Range("A1:B2")

Now your excel range is all 1 variable (array), y

To pull the data, call the array position in the range "A1:B2" or whatever you choose. e.g.:

Msgbox y(1, 1)

This will return the top left box in the "A1:B2" range.

Well 'Abstract Interface' is a Lexical construct: http://en.wikipedia.org/wiki/Lexical_analysis.

It is required by the compiler, you could also write interface.

Well don't get too much into Lexical construct of the language as they might have put it there to resolve some compilation ambiguity which is termed as special cases during compiling process or for some backward compatibility, try to focus on core Lexical construct.

The essence of `interface is to capture some abstract concept (idea/thought/higher order thinking etc) whose implementation may vary ... that is, there may be multiple implementation.

An Interface is a pure abstract data type that represents the features of the Object it is capturing or representing.

Features can be represented by space or by time. When they are represented by space (memory storage) it means that your concrete class will implement a field and method/methods that will operate on that field or by time which means that the task of implementing the feature is purely computational (requires more cpu clocks for processing) so you have a trade off between space and time for feature implementation.

If your concrete class does not implement all features it again becomes abstract because you have a implementation of your thought or idea or abstractness but it is not complete , you specify it by abstract class.

A concrete class will be a class/set of classes which will fully capture the abstractness you are trying to capture class XYZ.

So the Pattern is

Interface--->Abstract class/Abstract classes(depends)-->Concrete class

I believe fcntl() is a POSIX function. Where as ioctl() is a standard UNIX thing. Here is a list of POSIX io. ioctl() is a very kernel/driver/OS specific thing, but i am sure what you use works on most flavors of Unix. some other ioctl() stuff might only work on certain OS or even certain revs of it's kernel.

If you're on Linux, seriously consider just using the g_file_get_contents function from glib. It handles all the code for loading a file, allocating memory, and handling errors.

Another way you can add horizontal space between elements is to set up labels to preserve spaces in css:

label {
   white-space: pre;
}

..and then add a label with as many spaces as you want:

<label>  </label>

too many ) parenthesis remove one of them.

You should really import the module into its own alias.

import datetime as dt
my_datetime = dt.datetime(year, month, day)

The above has the following benefits over the other solutions:

• Calling the variable my_datetime instead of date reduces confusion since there is already a date in the datetime module (datetime.date).
• The module and the class (both called datetime) do not shadow each other.

use swift this code

view.translatesAutoresizingMaskIntoConstraints = false

Right click 'libraries' in the project list, then click add.

I saw in getwindowtext (user32) on pinvoke.net that you can place a MarshalAs statement to state that the StringBuffer is equivalent to LPSTR.

<DllImport("user32.dll", SetLastError:=True, CharSet:=CharSet.Ansi)> _
Public Function GetWindowText(hwnd As IntPtr, <MarshalAs(UnManagedType.LPStr)>lpString As System.Text.StringBuilder, cch As Integer) As Integer
End Function

Percent calculation that worked for me:

(new_num - old_num) / old_num * 100.0

There is no syntax for block quote in VBA. The work around is to use the button to quickly block or unblock multiple lines of code.

According to HTML spec both <form> and <p> are block elements and you cannot nest them. Maybe replacing the <p> with <span> would work for you?

EDIT: Sorry. I was to quick in my wording. The <p> element doesn't allow any block content within - as specified by HTML spec for paragraphs.

From a related SO question: Format a number with commas but without decimals in SQL Server 2008 R2?

SELECT CONVERT(varchar, CAST(1112 AS money), 1)

This was tested in SQL Server 2008 R2.

This query will list missing indexes on foreign keys, original source.

Edit: Note that it will not check small tables (less then 9 MB) and some other cases. See final WHERE statement.

-- check for FKs where there is no matching index
-- on the referencing side
-- or a bad index

WITH fk_actions ( code, action ) AS (
    VALUES ( 'a', 'error' ),
        ( 'r', 'restrict' ),
        ( 'c', 'cascade' ),
        ( 'n', 'set null' ),
        ( 'd', 'set default' )
),
fk_list AS (
    SELECT pg_constraint.oid as fkoid, conrelid, confrelid as parentid,
        conname, relname, nspname,
        fk_actions_update.action as update_action,
        fk_actions_delete.action as delete_action,
        conkey as key_cols
    FROM pg_constraint
        JOIN pg_class ON conrelid = pg_class.oid
        JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid
        JOIN fk_actions AS fk_actions_update ON confupdtype = fk_actions_update.code
        JOIN fk_actions AS fk_actions_delete ON confdeltype = fk_actions_delete.code
    WHERE contype = 'f'
),
fk_attributes AS (
    SELECT fkoid, conrelid, attname, attnum
    FROM fk_list
        JOIN pg_attribute
            ON conrelid = attrelid
            AND attnum = ANY( key_cols )
    ORDER BY fkoid, attnum
),
fk_cols_list AS (
    SELECT fkoid, array_agg(attname) as cols_list
    FROM fk_attributes
    GROUP BY fkoid
),
index_list AS (
    SELECT indexrelid as indexid,
        pg_class.relname as indexname,
        indrelid,
        indkey,
        indpred is not null as has_predicate,
        pg_get_indexdef(indexrelid) as indexdef
    FROM pg_index
        JOIN pg_class ON indexrelid = pg_class.oid
    WHERE indisvalid
),
fk_index_match AS (
    SELECT fk_list.*,
        indexid,
        indexname,
        indkey::int[] as indexatts,
        has_predicate,
        indexdef,
        array_length(key_cols, 1) as fk_colcount,
        array_length(indkey,1) as index_colcount,
        round(pg_relation_size(conrelid)/(1024^2)::numeric) as table_mb,
        cols_list
    FROM fk_list
        JOIN fk_cols_list USING (fkoid)
        LEFT OUTER JOIN index_list
            ON conrelid = indrelid
            AND (indkey::int2[])[0:(array_length(key_cols,1) -1)] @> key_cols

),
fk_perfect_match AS (
    SELECT fkoid
    FROM fk_index_match
    WHERE (index_colcount - 1) <= fk_colcount
        AND NOT has_predicate
        AND indexdef LIKE '%USING btree%'
),
fk_index_check AS (
    SELECT 'no index' as issue, *, 1 as issue_sort
    FROM fk_index_match
    WHERE indexid IS NULL
    UNION ALL
    SELECT 'questionable index' as issue, *, 2
    FROM fk_index_match
    WHERE indexid IS NOT NULL
        AND fkoid NOT IN (
            SELECT fkoid
            FROM fk_perfect_match)
),
parent_table_stats AS (
    SELECT fkoid, tabstats.relname as parent_name,
        (n_tup_ins + n_tup_upd + n_tup_del + n_tup_hot_upd) as parent_writes,
        round(pg_relation_size(parentid)/(1024^2)::numeric) as parent_mb
    FROM pg_stat_user_tables AS tabstats
        JOIN fk_list
            ON relid = parentid
),
fk_table_stats AS (
    SELECT fkoid,
        (n_tup_ins + n_tup_upd + n_tup_del + n_tup_hot_upd) as writes,
        seq_scan as table_scans
    FROM pg_stat_user_tables AS tabstats
        JOIN fk_list
            ON relid = conrelid
)
SELECT nspname as schema_name,
    relname as table_name,
    conname as fk_name,
    issue,
    table_mb,
    writes,
    table_scans,
    parent_name,
    parent_mb,
    parent_writes,
    cols_list,
    indexdef
FROM fk_index_check
    JOIN parent_table_stats USING (fkoid)
    JOIN fk_table_stats USING (fkoid)
WHERE table_mb > 9
    AND ( writes > 1000
        OR parent_writes > 1000
        OR parent_mb > 10 )
ORDER BY issue_sort, table_mb DESC, table_name, fk_name;

Are you mixing C and C++? One issue that can occur is that the declarations in the .h file for a .c file need to be surrounded by:

#if defined(__cplusplus)
  extern "C" {                 // Make sure we have C-declarations in C++ programs
#endif

and:

#if defined(__cplusplus)
  }
#endif

Note: if unable / unwilling to modify the .h file(s) in question, you can surround their inclusion with extern "C":

extern "C" {
#include <abc.h>
} //extern

had better be List

The only List implementation in java.util.concurrent is CopyOnWriteArrayList. There's also the option of a synchronized list as Travis Webb mentions.

That said, are you sure you need it to be a List? There are a lot more options for concurrent Queues and Maps (and you can make Sets from Maps), and those structures tend to make the most sense for many of the types of things you want to do with a shared data structure.

For queues, you have a huge number of options and which is most appropriate depends on how you need to use it:

• ConcurrentLinkedQueue
• ArrayBlockingQueue
• LinkedBlockingDeque
• LinkedBlockingQueue
• PriorityBlockingQueue
• SynchronousQueue
• DelayQueue

class CurrentValue:

    def __init__(self, value):
        self.value = value

    def set_val(self, k):
        self.value = k

    def get_val(self):
        return self.value


class AddValue:

    def av(self, ocv):
        print('Before:', ocv.get_val())
        num = int(input('Enter number to add : '))
        nnum = num + ocv.get_val()
        ocv.set_val(nnum)
        print('After add :', ocv.get_val())


cvo = CurrentValue(5)

avo = AddValue()

avo.av(cvo)

We define 2 classes, CurrentValue and AddValue We define 3 methods in the first class One init in order to give to the instance variable self.value an initial value A set_val method where we set the self.value to a k A get_val method where we get the valuue of self.value We define one method in the second class A av method where we pass as parameter(ovc) an object of the first class We create an instance (cvo) of the first class We create an instance (avo) of the second class We call the method avo.av(cvo) of the second class and pass as an argument the object we have already created from the first class. So by this way I would like to show how it is possible to call a method of a class from another class.

I am sorry for any inconvenience. This will not happen again.

Before: 5

Enter number to add : 14

After add : 19

Anything related with the size of text and appearance must use sp or pt. Whereas, anything related to the size of the controls, the layouts, etc. must be used with dp.

You can use both dp and dip at its places.

On Ubuntu and Debian

apt-get install python-six

does the trick.

Use sudo apt-get install python-six if you get an error saying "permission denied".

A relatively easy way of doing this is to write the entire sequence as a shell script.

out.tar:
   set -e ;\
   TMP=$$(mktemp -d) ;\
   echo hi $$TMP/hi.txt ;\
   tar -C $$TMP cf $@ . ;\
   rm -rf $$TMP ;\

I have consolidated some related tips here: https://stackoverflow.com/a/29085684/86967

The correct syntax is:

FOR EACH ROW SET NEW.bname = CONCAT( UCASE( LEFT( NEW.bname, 1 ) )
                                   , LCASE( SUBSTRING( NEW.bname, 2 ) ) )

Here is the code of ReadDoc/docx.java: This will read a dox/docx file and print its content to the console. you can customize it your way.

import java.io.*;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.extractor.WordExtractor;

public class ReadDocFile
{
    public static void main(String[] args)
    {
        File file = null;
        WordExtractor extractor = null;
        try
        {

            file = new File("c:\\New.doc");
            FileInputStream fis = new FileInputStream(file.getAbsolutePath());
            HWPFDocument document = new HWPFDocument(fis);
            extractor = new WordExtractor(document);
            String[] fileData = extractor.getParagraphText();
            for (int i = 0; i < fileData.length; i++)
            {
                if (fileData[i] != null)
                    System.out.println(fileData[i]);
            }
        }
        catch (Exception exep)
        {
            exep.printStackTrace();
        }
    }
}

How about calling a function from within your callback instead of returning a value in sync_call()?

function sync_call(input) {
    var value;

    // Assume the async call always succeed
    async_call(input, function(result) {
        value = result;
        use_value(value);
    } );
}

An rvalue reference is a type that behaves much like the ordinary reference X&, with several exceptions. The most important one is that when it comes to function overload resolution, lvalues prefer old-style lvalue references, whereas rvalues prefer the new rvalue references:

void foo(X& x);  // lvalue reference overload
void foo(X&& x); // rvalue reference overload

X x;
X foobar();

foo(x);        // argument is lvalue: calls foo(X&)
foo(foobar()); // argument is rvalue: calls foo(X&&)

So what is an rvalue? Anything that is not an lvalue. An lvalue being an expression that refers to a memory location and allows us to take the address of that memory location via the & operator.

It is almost easier to understand first what rvalues accomplish with an example:

 #include <cstring>
 class Sample {
  int *ptr; // large block of memory
  int size;
 public:
  Sample(int sz=0) : ptr{sz != 0 ? new int[sz] : nullptr}, size{sz} 
  {
     if (ptr != nullptr) memset(ptr, 0, sz);
  }
  // copy constructor that takes lvalue 
  Sample(const Sample& s) : ptr{s.size != 0 ? new int[s.size] :\
      nullptr}, size{s.size}
  {
     if (ptr != nullptr) memcpy(ptr, s.ptr, s.size);
     std::cout << "copy constructor called on lvalue\n";
  }

  // move constructor that take rvalue
  Sample(Sample&& s) 
  {  // steal s's resources
     ptr = s.ptr;
     size = s.size;        
     s.ptr = nullptr; // destructive write
     s.size = 0;
     cout << "Move constructor called on rvalue." << std::endl;
  }    
  // normal copy assignment operator taking lvalue
  Sample& operator=(const Sample& s)
  {
   if(this != &s) {
      delete [] ptr; // free current pointer
      size = s.size;

      if (size != 0) {
        ptr = new int[s.size];
        memcpy(ptr, s.ptr, s.size);
      } else 
         ptr = nullptr;
     }
     cout << "Copy Assignment called on lvalue." << std::endl;
     return *this;
  }    
 // overloaded move assignment operator taking rvalue
 Sample& operator=(Sample&& lhs)
 {
   if(this != &s) {
      delete [] ptr; //don't let ptr be orphaned 
      ptr = lhs.ptr;   //but now "steal" lhs, don't clone it.
      size = lhs.size; 
      lhs.ptr = nullptr; // lhs's new "stolen" state
      lhs.size = 0;
   }
   cout << "Move Assignment called on rvalue" << std::endl;
   return *this;
 }
//...snip
};     

The constructor and assignment operators have been overloaded with versions that take rvalue references. Rvalue references allow a function to branch at compile time (via overload resolution) on the condition "Am I being called on an lvalue or an rvalue?". This allowed us to create more efficient constructor and assignment operators above that move resources rather copy them.

The compiler automatically branches at compile time (depending on the whether it is being invoked for an lvalue or an rvalue) choosing whether the move constructor or move assignment operator should be called.

Summing up: rvalue references allow move semantics (and perfect forwarding, discussed in the article link below).

One practical easy-to-understand example is the class template std::unique_ptr. Since a unique_ptr maintains exclusive ownership of its underlying raw pointer, unique_ptr's can't be copied. That would violate their invariant of exclusive ownership. So they do not have copy constructors. But they do have move constructors:

template<class T> class unique_ptr {
  //...snip
 unique_ptr(unique_ptr&& __u) noexcept; // move constructor
};

 std::unique_ptr<int[] pt1{new int[10]};  
 std::unique_ptr<int[]> ptr2{ptr1};// compile error: no copy ctor.  

 // So we must first cast ptr1 to an rvalue 
 std::unique_ptr<int[]> ptr2{std::move(ptr1)};  

std::unique_ptr<int[]> TakeOwnershipAndAlter(std::unique_ptr<int[]> param,\
 int size)      
{
  for (auto i = 0; i < size; ++i) {
     param[i] += 10;
  }
  return param; // implicitly calls unique_ptr(unique_ptr&&)
}

// Now use function     
unique_ptr<int[]> ptr{new int[10]};

// first cast ptr from lvalue to rvalue
unique_ptr<int[]> new_owner = TakeOwnershipAndAlter(\
           static_cast<unique_ptr<int[]>&&>(ptr), 10);

cout << "output:\n";

for(auto i = 0; i< 10; ++i) {
   cout << new_owner[i] << ", ";
}

output:
10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 

static_cast<unique_ptr<int[]>&&>(ptr) is usually done using std::move

// first cast ptr from lvalue to rvalue
unique_ptr<int[]> new_owner = TakeOwnershipAndAlter(std::move(ptr),0);

An excellent article explaining all this and more (like how rvalues allow perfect forwarding and what that means) with lots of good examples is Thomas Becker's C++ Rvalue References Explained. This post relied heavily on his article.

A shorter introduction is A Brief Introduction to Rvalue References by Stroutrup, et. al

Continuing with Mecki's suggestion, this article pthread mutex vs pthread spinlock on Alexander Sandler's blog, Alex on Linux shows how the spinlock & mutexes can be implemented to test the behavior using #ifdef.

However, be sure to take the final call based on your observation, understanding as the example given is an isolated case, your project requirement, environment may be entirely different.

Note:

Function was written to handle seeding of randomized set creation. You should not rely on set splitting that doesn't randomize the sets.

import numpy as np
import pandas as pd

def train_validate_test_split(df, train_percent=.6, validate_percent=.2, seed=None):
    np.random.seed(seed)
    perm = np.random.permutation(df.index)
    m = len(df.index)
    train_end = int(train_percent * m)
    validate_end = int(validate_percent * m) + train_end
    train = df.iloc[perm[:train_end]]
    validate = df.iloc[perm[train_end:validate_end]]
    test = df.iloc[perm[validate_end:]]
    return train, validate, test

Demonstration

np.random.seed([3,1415])
df = pd.DataFrame(np.random.rand(10, 5), columns=list('ABCDE'))
df

train, validate, test = train_validate_test_split(df)

train

validate

test

You want java.text.DecimalFormat

If you want to filter out extensions from the output of another command e.g. "git":

files=$(git diff --name-only --diff-filter=d origin/master... | grep -E '\.cpp$|\.h$')

for file in $files; do
    echo "$file"
done

Generally speaking:

all and any are functions that take some iterable and return True, if

• in the case of all(), no values in the iterable are falsy;
• in the case of any(), at least one value is truthy.

A value x is falsy iff bool(x) == False. A value x is truthy iff bool(x) == True.

Any non-booleans in the iterable will be fine — bool(x) will coerce any x according to these rules: 0, 0.0, None, [], (), [], set(), and other empty collections will yield False, anything else True. The docstring for bool uses the terms 'true'/'false' for 'truthy'/'falsy', and True/False for the concrete boolean values.

In your specific code samples:

You misunderstood a little bit how these functions work. Hence, the following does something completely not what you thought:

if any(foobars) == big_foobar:

...because any(foobars) would first be evaluated to either True or False, and then that boolean value would be compared to big_foobar, which generally always gives you False (unless big_foobar coincidentally happened to be the same boolean value).

Note: the iterable can be a list, but it can also be a generator/generator expression (˜ lazily evaluated/generated list) or any other iterator.

What you want instead is:

if any(x == big_foobar for x in foobars):

which basically first constructs an iterable that yields a sequence of booleans—for each item in foobars, it compares the item to big_foobar and emits the resulting boolean into the resulting sequence:

tmp = (x == big_foobar for x in foobars)

then any walks over all items in tmp and returns True as soon as it finds the first truthy element. It's as if you did the following:

In [1]: foobars = ['big', 'small', 'medium', 'nice', 'ugly']                                        

In [2]: big_foobar = 'big'                                                                          

In [3]: any(['big' == big_foobar, 'small' == big_foobar, 'medium' == big_foobar, 'nice' == big_foobar, 'ugly' == big_foobar])        
Out[3]: True

Note: As DSM pointed out, any(x == y for x in xs) is equivalent to y in xs but the latter is more readable, quicker to write and runs faster.

Some examples:

In [1]: any(x > 5 for x in range(4))
Out[1]: False

In [2]: all(isinstance(x, int) for x in range(10))
Out[2]: True

In [3]: any(x == 'Erik' for x in ['Erik', 'John', 'Jane', 'Jim'])
Out[3]: True

In [4]: all([True, True, True, False, True])
Out[4]: False

See also: http://docs.python.org/2/library/functions.html#all

If you have the Meld merge tool open, close that. It blocks the file overwriting.

I do so

 <input id="relacionac" name="relacionac" type="number" min="0.4" max="0.7" placeholder="0,40-0,70" class="form-control input-md" step="0.01">

then, I define min in 0.4 and max in 0.7 with step 0.01: 0.4, 0.41, 0,42 ... 0.7

It doesn't - the C# compiler does :)

So this code:

string x = "hello";
string y = "there";
string z = "chaps";
string all = x + y + z;

actually gets compiled as:

string x = "hello";
string y = "there";
string z = "chaps";
string all = string.Concat(x, y, z);

(Gah - intervening edit removed other bits accidentally.)

The benefit of the C# compiler noticing that there are multiple string concatenations here is that you don't end up creating an intermediate string of x + y which then needs to be copied again as part of the concatenation of (x + y) and z. Instead, we get it all done in one go.

EDIT: Note that the compiler can't do anything if you concatenate in a loop. For example, this code:

string x = "";
foreach (string y in strings)
{
    x += y;
}

just ends up as equivalent to:

string x = "";
foreach (string y in strings)
{
    x = string.Concat(x, y);
}

... so this does generate a lot of garbage, and it's why you should use a StringBuilder for such cases. I have an article going into more details about the two which will hopefully answer further questions.

You can also reference a local gem with git if you happen to be working on it.

gem 'foo',
  :git => '/Path/to/local/git/repo',
  :branch => 'my-feature-branch'

Then, if it changes I run

bundle exec gem uninstall foo
bundle update foo

But I am not sure everyone needs to run these two steps.

If stuffs is a list of strings, just this would work:

{{ stuffs|join(", ") }}

Link to join filter documentation, link to filters in general documentation.

p.s.

More reader friendly way {{ my ~ ', ' ~ string }}

docker build  -t name1:tag1 -t name2:tag2 -f Dockerfile.ui .

I"m using an extension method for pre C# 6 projects and the nameof() for those targeting C# 6.

public static class MiscExtentions
{
    public static string NameOf<TModel, TProperty>(this object @object, Expression<Func<TModel, TProperty>> propertyExpression)
    {
        var expression = propertyExpression.Body as MemberExpression;
        if (expression == null)
        {
            throw new ArgumentException("Expression is not a property.");
        }

        return expression.Member.Name;
    }
}

And i call it like:

public class MyClass 
{
    public int Property1 { get; set; }
    public string Property2 { get; set; }
    public int[] Property3 { get; set; }
    public Subclass Property4 { get; set; }
    public Subclass[] Property5 { get; set; }
}

public class Subclass
{
    public int PropertyA { get; set; }
    public string PropertyB { get; set; }
}

// result is Property1
this.NameOf((MyClass o) => o.Property1);
// result is Property2
this.NameOf((MyClass o) => o.Property2);
// result is Property3
this.NameOf((MyClass o) => o.Property3);
// result is Property4
this.NameOf((MyClass o) => o.Property4);
// result is PropertyB
this.NameOf((MyClass o) => o.Property4.PropertyB);
// result is Property5
this.NameOf((MyClass o) => o.Property5);

It works fine with both fields and properties.

The Uri.parse(extras.getString("imageUri")) was causing an error:

java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.Intent android.content.Intent.putExtra(java.lang.String, android.os.Parcelable)' on a null object reference 

So I changed to the following:

intent.putExtra("imageUri", imageUri)

and

Uri uri = (Uri) getIntent().get("imageUri");

This solved the problem.

Any ranking of various data structures will be at least partially tied to problem context. It would help to learn how to analyze time and space performance of algorithms. Typically, "big O notation" is used, e.g. binary search is in O(log n) time, which means that the time to search for an element is the log (in base 2, implicitly) of the number of elements. Intuitively, since every step discards half of the remaining data as irrelevant, doubling the number of elements will increases the time by 1 step. (Binary search scales rather well.) Space performance concerns how the amount of memory grows for larger data sets. Also, note that big-O notation ignores constant factors - for smaller data sets, an O(n^2) algorithm may still be faster than an O(n * log n) algorithm that has a higher constant factor. Complex algorithms often have more work to do on startup.

Besides time and space, other characteristics include whether a data structure is sorted (trees and skiplists are sorted, hash tables are not), persistence (binary trees can reuse pointers from older versions, while hash tables are modified in place), etc.

While you'll need to learn the behavior of several data structures to be able to compare them, one way to develop a sense for why they differ in performance is to closely study a few. I'd suggest comparing singly-linked lists, binary search trees, and skip lists, all of which are relatively simple, but have very different characteristics. Think about how much work it takes to find a value, add a new value, find all values in order, etc.

There are various texts on analyzing algorithms / data structure performance that people recommend, but what really made them make sense to me was learning OCaml. Dealing with complex data structures is ML's strong suit, and their behavior is much clearer when you can avoid pointers and memory management as in C. (Learning OCaml just to understand data structures is almost certainly the long way around, though. :) )

You can use column indices (letters) like this:

import pandas as pd
import numpy as np
file_loc = "path.xlsx"
df = pd.read_excel(file_loc, index_col=None, na_values=['NA'], usecols = "A,C:AA")
print(df)

[Corresponding documentation][1]:

usecolsint, str, list-like, or callable default None

• If None, then parse all columns.
• If str, then indicates comma separated list of Excel column letters and column ranges (e.g. “A:E” or “A,C,E:F”). Ranges are inclusive of both sides.
• If list of int, then indicates list of column numbers to be parsed.

• If list of string, then indicates list of column names to be parsed.

  New in version 0.24.0.

• If callable, then evaluate each column name against it and parse the column if the callable returns True.

Returns a subset of the columns according to behavior above.

New in version 0.24.0.

Just in case for data.table users, the following works for me:

df[, grep("ABC", names(df)), with = FALSE]

I had the same doubt about stateful v/s stateless class design and did some research. Just completed and my findings has been posted in my blog

• Entity classes needs to be stateful
• The helper / worker classes should not be stateful.

If you look at the documentation of Map.Entry you will find that it is a static interface (an interface which is defined inside the Map interface an can be accessed through Map.Entry) and it has two implementations

All Known Implementing Classes:
AbstractMap.SimpleEntry, AbstractMap.SimpleImmutableEntry

The class AbstractMap.SimpleEntry provides 2 constructors:

Constructors and Description
AbstractMap.SimpleEntry(K key, V value)
Creates an entry representing a mapping from the specified key to the
specified value.
AbstractMap.SimpleEntry(Map.Entry<? extends K,? extends V> entry)
Creates an entry representing the same mapping as the specified entry.

An example use case:

import java.util.Map;
import java.util.AbstractMap.SimpleEntry;

public class MyClass {
    public static void main(String args[]) {
      Map.Entry e = new SimpleEntry<String, String>("Hello","World");

      System.out.println(e.getKey()+" "+e.getValue());
    }
}

You can add a file as a resource using two separate methods.

The C# code required to access the file is different, depending on the method used to add the file in the first place.

Method 1: Add existing file, set property to Embedded Resource

Add the file to your project, then set the type to Embedded Resource.

NOTE: If you add the file using this method, you can use GetManifestResourceStream to access it (see answer from @dtb).

Method 2: Add file to Resources.resx

Open up the Resources.resx file, use the dropdown box to add the file, set Access Modifier to public.

NOTE: If you add the file using this method, you can use Properties.Resources to access it (see answer from @Night Walker).

I tried @abimelex solution, but in Slim 3.0, mapping the OPTIONS requests goes like:

$app = new \Slim\App();
$app->options('/books/{id}', function ($request, $response, $args) {
    // Return response headers
});

https://www.slimframework.com/docs/objects/router.html#options-route

Apple states about NSSearchPathForDirectoriesInDomains(_:_:_:):

You should consider using the FileManager methods urls(for:in:) and url(for:in:appropriateFor:create:) which return URLs, which are the preferred format.

With Swift 5, FileManager has a method called contentsOfDirectory(at:includingPropertiesForKeys:options:). contentsOfDirectory(at:includingPropertiesForKeys:options:) has the following declaration:

Performs a shallow search of the specified directory and returns URLs for the contained items.

func contentsOfDirectory(at url: URL, includingPropertiesForKeys keys: [URLResourceKey]?, options mask: FileManager.DirectoryEnumerationOptions = []) throws -> [URL]

Therefore, in order to retrieve the urls of the files contained in documents directory, you can use the following code snippet that uses FileManager's urls(for:in:) and contentsOfDirectory(at:includingPropertiesForKeys:options:) methods:

guard let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else { return }

do {
    let directoryContents = try FileManager.default.contentsOfDirectory(at: documentsDirectory, includingPropertiesForKeys: nil, options: [])

    // Print the urls of the files contained in the documents directory
    print(directoryContents)
} catch {
    print("Could not search for urls of files in documents directory: \(error)")
}

As an example, the UIViewController implementation below shows how to save a file from app bundle to documents directory and how to get the urls of the files saved in documents directory:

import UIKit

class ViewController: UIViewController {

    @IBAction func copyFile(_ sender: UIButton) {
        // Get file url
        guard let fileUrl = Bundle.main.url(forResource: "Movie", withExtension: "mov") else { return }

        // Create a destination url in document directory for file
        guard let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else { return }
        let documentDirectoryFileUrl = documentsDirectory.appendingPathComponent("Movie.mov")

        // Copy file to document directory
        if !FileManager.default.fileExists(atPath: documentDirectoryFileUrl.path) {
            do {
                try FileManager.default.copyItem(at: fileUrl, to: documentDirectoryFileUrl)
                print("Copy item succeeded")
            } catch {
                print("Could not copy file: \(error)")
            }
        }
    }

    @IBAction func displayUrls(_ sender: UIButton) {
        guard let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first else { return }

        do {
            let directoryContents = try FileManager.default.contentsOfDirectory(at: documentsDirectory, includingPropertiesForKeys: nil, options: [])

            // Print the urls of the files contained in the documents directory
            print(directoryContents) // may print [] or [file:///private/var/mobile/Containers/Data/Application/.../Documents/Movie.mov]
        } catch {
            print("Could not search for urls of files in documents directory: \(error)")
        }
    }

}

For Android there is the addition of target-density tag.

target-densitydpi=device-dpi

So, the code would look like

<meta name="viewport" content="width=device-width, target-densitydpi=device-dpi, initial-scale=0, maximum-scale=1, user-scalable=yes" />

Please note, that I believe this addition is only for Android (but since you have answers, I felt this was a good extra) but this should work for most mobile devices.

I used a little time to figure this out... I ran it some CastExceptions, but figured out that you can replace you LinearLayout in the layout.xml with the name of the class.

Like this:

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent"
    xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/llMaster">

<com.ourshoppingnote.RelativeLayoutThatDetectsSoftKeyboard android:background="@drawable/metal_background"
    android:layout_width="fill_parent" android:layout_height="fill_parent"
    android:id="@+id/rlMaster" >
    <LinearLayout android:layout_width="fill_parent"
        android:layout_height="1dip" android:background="@drawable/line"></LinearLayout>

          ....

</com.ourshoppingnote.RelativeLayoutThatDetectsSoftKeyboard>    


</LinearLayout>

That way you do not run into any cast issues.

... and if you don't want to do this on every page, I recommend that you use "MasterPage in Android". See the link here: http://jnastase.alner.net/archive/2011/01/08/ldquomaster-pagesrdquo-in-android.aspx

this works

import tkinter as tk
inputEdit.delete("1.0",tk.END)

If you are returning a complex json object you need to modify you success function of your auto-complete as follows.

$.ajax({
    url: "/Employees/SearchEmployees",
    dataType: "json",
    data: {
        searchText: request.term
    },
    success: function (data) {
        response($.map(data.employees, function (item) {
            return {
                label: item.name,
                value: item.id
            };
        }));
    }
});

Using sshpass works best. To just include your password in scp use the ' ':

scp user1:'password'@xxx.xxx.x.5:sys_config /var/www/dev/

Can get ID before add documents in database:

var idBefore =  this.afs.createId();
console.log(idBefore);

Addition to Dan's Answer.

If there is an IP address instead of domain.

Change regex a bit. (Temporary solution for valid IPv4 and IPv6)

^https?://(?:[a-z0-9\-]+\.)+[a-z0-9]{2,6}(?:/[^/#?]+)+\.(?:jpg|gif|png)$

However this can be improved, for IPv4 and IPv6 to validate subnet range(s).

By writing below code you will get the location:

/storage/663D-554E/Android/data/app_package_name/files/

which stores your app data at /android/data location inside the sd_card.

File[] list = ContextCompat.getExternalFilesDirs(MainActivity.this, null);

list[1]+"/fol" 

for getting location pass 0 for internal and 1 for sdcard to file array.

I have tested this code on a moto g4 plus and Samsung device (all works fine).

hope this might helpful.

Stopping (Killing) a thread mid-way is not recommended. The API is actually deprecated.

However,you can get more details including workarounds here: How do you kill a thread in Java?

public static final String YOUR_STRING_CONSTANT = "";

After some experimentation I came up with this implementation:

$('.detect-change')
    .on('change cut paste', function(e) {
        console.log("Change detected.");
        contentModified = true;
    })
    .keypress(function(e) {
        if (e.which !== 0 && e.altKey == false && e.ctrlKey == false && e.metaKey == false) {
            console.log("Change detected.");
            contentModified = true;
        }
    });

Handles changes to any kind of input and select as well as textareas ignoring arrow keys and things like ctrl, cmd, function keys, etc.

Note: I've only tried this in FF since it's for a FF add-on.

You can change the working directory with:

import os

os.chdir(path)

There are two best practices to follow when using this method:

1. Catch the exception (WindowsError, OSError) on invalid path. If the exception is thrown, do not perform any recursive operations, especially destructive ones. They will operate on the old path and not the new one.
2. Return to your old directory when you're done. This can be done in an exception-safe manner by wrapping your chdir call in a context manager, like Brian M. Hunt did in his answer.

Changing the current working directory in a subprocess does not change the current working directory in the parent process. This is true of the Python interpreter as well. You cannot use os.chdir() to change the CWD of the calling process.

Go to http://getbootstrap.com/customize/ and toggle just what you want from the BS3 framework and then click "Compile and Download" and you'll get the CSS and JS that you chose.

Open up the CSS and remove all but the grid. They include some normalize stuff too. And you'll need to adjust all the styles on your site to box-sizing: border-box - http://www.w3schools.com/cssref/css3_pr_box-sizing.asp

If used ispconfig3:

Go to Website section -> Options -> PHP open_basedir:

• In this field has described allowed paths and each path is separated with ":"

/var/www/clients/client2/web3/image:/var/www/clients/client2/web3/web:/var/www/... and so on

• So here must put the path that you want to have access, in my case is:

/var/www/clients/client2/web3/image:

• The problem appears because:

When a script tries to access the filesystem, for example using include, or fopen(), the location of the file is checked. When the file is outside the specified directory-tree, PHP will refuse to access it.

echo -e "\e[3J"

This works in Linux Machines

Please note that both the HTML5 specification of W3C and WhatWG standardize

<link rel="icon" href="/favicon.ico">

Note the value of the "rel" attribute!

The value shortcut icon for the rel attribute is a very old Internet Explorer specific extension and deprecated.

So please consider not using it any more and updating your files so they are standards compliant and are displayed correctly in all browsers.

You might also want to take a look at this great post: rel="shortcut icon" considered harmful

Take a look at the Java™ Tutorials by Oracle.

But basically, as dacwe said, use break.

If you can it is often clearer to avoid using break and put the check as a condition of the while loop, or using something like a do while loop. This isn't always possible though.

For me, it worked like this:

In GitHub I changed the ssh link to https, and then gave the following commands:

$ git init
$ git remote add origin https:...
$ git add .
$ git commit -m "first commit"
$ git push origin master

Reference: https://developer.apple.com/ios/human-interface-guidelines/graphics/custom-icons/[https://developer.apple.com/ios/human-interface-guidelines/graphics/custom-icons/].

So the 50x50 size is a good choice.

import numpy as np
import pandas as pd
import scipy.sparse as sparse

df = pd.DataFrame(np.arange(1,10).reshape(3,3))
arr = sparse.coo_matrix(([1,1,1], ([0,1,2], [1,2,0])), shape=(3,3))
df['newcol'] = arr.toarray().tolist()
print(df)

yields

   0  1  2     newcol
0  1  2  3  [0, 1, 0]
1  4  5  6  [0, 0, 1]
2  7  8  9  [1, 0, 0]

You are trying to pass pointers (which you do not delete, thus leaking memory) where references are needed. You do not really need pointers here:

Complex firstComplexNumber(81, 93);
Complex secondComplexNumber(31, 19);

cout << "Numarul complex este: " << firstComplexNumber << endl;
//                                  ^^^^^^^^^^^^^^^^^^ No need to dereference now

// ...

Complex::distanta(firstComplexNumber, secondComplexNumber);

This is a common problem, so here's a relatively thorough illustration.

For non-unicode strings (i.e. those without u prefix like u'\xc4pple'), one must decode from the native encoding (iso8859-1/latin1, unless modified with the enigmatic sys.setdefaultencoding function) to unicode, then encode to a character set that can display the characters you wish, in this case I'd recommend UTF-8.

First, here is a handy utility function that'll help illuminate the patterns of Python 2.7 string and unicode:

>>> def tell_me_about(s): return (type(s), s)

A plain string

>>> v = "\xC4pple" # iso-8859-1 aka latin1 encoded string

>>> tell_me_about(v)
(<type 'str'>, '\xc4pple')

>>> v
'\xc4pple'        # representation in memory

>>> print v
?pple             # map the iso-8859-1 in-memory to iso-8859-1 chars
                  # note that '\xc4' has no representation in iso-8859-1, 
                  # so is printed as "?".

Decoding a iso8859-1 string - convert plain string to unicode

>>> uv = v.decode("iso-8859-1")
>>> uv
u'\xc4pple'       # decoding iso-8859-1 becomes unicode, in memory

>>> tell_me_about(uv)
(<type 'unicode'>, u'\xc4pple')

>>> print v.decode("iso-8859-1")
Äpple             # convert unicode to the default character set
                  # (utf-8, based on sys.stdout.encoding)

>>> v.decode('iso-8859-1') == u'\xc4pple'
True              # one could have just used a unicode representation 
                  # from the start

A little more illustration — with “Ä”

>>> u"Ä" == u"\xc4"
True              # the native unicode char and escaped versions are the same

>>> "Ä" == u"\xc4"  
False             # the native unicode char is '\xc3\x84' in latin1

>>> "Ä".decode('utf8') == u"\xc4"
True              # one can decode the string to get unicode

>>> "Ä" == "\xc4"
False             # the native character and the escaped string are
                  # of course not equal ('\xc3\x84' != '\xc4').

Encoding to UTF

>>> u8 = v.decode("iso-8859-1").encode("utf-8")
>>> u8
'\xc3\x84pple'    # convert iso-8859-1 to unicode to utf-8

>>> tell_me_about(u8)
(<type 'str'>, '\xc3\x84pple')

>>> u16 = v.decode('iso-8859-1').encode('utf-16')
>>> tell_me_about(u16)
(<type 'str'>, '\xff\xfe\xc4\x00p\x00p\x00l\x00e\x00')

>>> tell_me_about(u8.decode('utf8'))
(<type 'unicode'>, u'\xc4pple')

>>> tell_me_about(u16.decode('utf16'))
(<type 'unicode'>, u'\xc4pple')

Relationship between unicode and UTF and latin1

>>> print u8
Äpple             # printing utf-8 - because of the encoding we now know
                  # how to print the characters

>>> print u8.decode('utf-8') # printing unicode
Äpple

>>> print u16     # printing 'bytes' of u16
???pple

>>> print u16.decode('utf16')
Äpple             # printing unicode

>>> v == u8
False             # v is a iso8859-1 string; u8 is a utf-8 string

>>> v.decode('iso8859-1') == u8
False             # v.decode(...) returns unicode

>>> u8.decode('utf-8') == v.decode('latin1') == u16.decode('utf-16')
True              # all decode to the same unicode memory representation
                  # (latin1 is iso-8859-1)

Unicode Exceptions

 >>> u8.encode('iso8859-1')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 0:
  ordinal not in range(128)

>>> u16.encode('iso8859-1')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xff in position 0:
  ordinal not in range(128)

>>> v.encode('iso8859-1')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc4 in position 0:
  ordinal not in range(128)

One would get around these by converting from the specific encoding (latin-1, utf8, utf16) to unicode e.g. u8.decode('utf8').encode('latin1').

So perhaps one could draw the following principles and generalizations:

• a type str is a set of bytes, which may have one of a number of encodings such as Latin-1, UTF-8, and UTF-16
• a type unicode is a set of bytes that can be converted to any number of encodings, most commonly UTF-8 and latin-1 (iso8859-1)
• the print command has its own logic for encoding, set to sys.stdout.encoding and defaulting to UTF-8
• One must decode a str to unicode before converting to another encoding.

Of course, all of this changes in Python 3.x.

Hope that is illuminating.

Further reading

• Characters vs. Bytes, by Tim Bray.

And the very illustrative rants by Armin Ronacher:

• The Updated Guide to Unicode on Python (July 2, 2013)
• More About Unicode in Python 2 and 3 (January 5, 2014)
• UCS vs UTF-8 as Internal String Encoding (January 9, 2014)
• Everything you did not want to know about Unicode in Python 3 (May 12, 2014)

The best option would be to put any element you want to be centered in a div like this:

        <div class="center">
            <img src="images/logo.png" />
        </div>

and css or inline style:

.center {  
      text-align:center  
 }

1. Set the database to single mode:

   ALTER DATABASE dbName
   SET SINGLE_USER WITH ROLLBACK IMMEDIATE
   

2. Try to rename the database:

   ALTER DATABASE dbName MODIFY NAME = NewName
   

3. Set the database to Multiuser mode:

   ALTER DATABASE NewName
   SET MULTI_USER WITH ROLLBACK IMMEDIATE
   

It's quite feasible to generate labeled icons server-side, if you have some programming skills. You'll need the GD library at the server, in addition to PHP. Been working well for me for several years now, but admittedly tricky to get the icon images in synch.

I do that via AJAX by sending the few parameters to define the blank icon and the text and color as well as bgcolor to be applied. Here's my PHP:

header("Content-type: image/png");
//$img_url = "./icons/gen_icon5.php?blank=7&text=BB";

function do_icon ($icon, $text, $color) {
$im = imagecreatefrompng($icon);
imageAlphaBlending($im, true);
imageSaveAlpha($im, true);

$len = strlen($text);
$p1 = ($len <= 2)? 1:2 ;
$p2 = ($len <= 2)? 3:2 ;
$px = (imagesx($im) - 7 * $len) / 2 + $p1;
$font = 'arial.ttf';
$contrast = ($color)? imagecolorallocate($im, 255, 255, 255): imagecolorallocate($im, 0, 0, 0); // white on dark?

imagestring($im, $p2, $px, 3, $text, $contrast);    // imagestring  ( $image, $font, $x, $y, $string, $color)

imagepng($im);
imagedestroy($im);
}
$icons =   array("black.png", "blue.png", "green.png", "red.png", "white.png", "yellow.png", "gray.png", "lt_blue.png", "orange.png");      // 1/9/09
$light =   array( TRUE,         TRUE,       FALSE,       FALSE,     FALSE,      FALSE,      FALSE,          FALSE,      FALSE);     // white text?

$the_icon = $icons[$_GET['blank']];             // 0 thru 8 (note: total 9)
$the_text = substr($_GET['text'], 0, 3);        // enforce 2-char limit
do_icon ($the_icon, $the_text,$light[$_GET['blank']] ); 

It's invoked client-side via something like the following: var image_file = "./our_icons/gen_icon.php?blank=" + escape(icons[color]) + "&text=" + iconStr;

You can use SimpleDateFormat to do it. You just have to know 2 things.

1. All dates are internally represented in UTC
2. .getTime() returns the number of milliseconds since 1970-01-01 00:00:00 UTC.

package se.wederbrand.milliseconds;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

public class Main {        
    public static void main(String[] args) throws Exception {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
        sdf.setTimeZone(TimeZone.getTimeZone("UTC"));

        String inputString = "00:01:30.500";

        Date date = sdf.parse("1970-01-01 " + inputString);
        System.out.println("in milliseconds: " + date.getTime());        
    }
}

Someone edited this question to remove the code I used, so I was forced to add it as an answer. Thanks to all who participated in answering this question! I think most of the other answers are better than this code, I'm just leaving this here for reference purposes.

With thanks to Paul H, and unutbu (who answered this question), I have some pretty nice-looking output:

import matplotlib.pyplot as plt
import numpy as np
column_labels = list('ABCD')
row_labels = list('WXYZ')
data = np.random.rand(4,4)
fig, ax = plt.subplots()
heatmap = ax.pcolor(data, cmap=plt.cm.Blues)

# put the major ticks at the middle of each cell
ax.set_xticks(np.arange(data.shape[0])+0.5, minor=False)
ax.set_yticks(np.arange(data.shape[1])+0.5, minor=False)

# want a more natural, table-like display
ax.invert_yaxis()
ax.xaxis.tick_top()

ax.set_xticklabels(row_labels, minor=False)
ax.set_yticklabels(column_labels, minor=False)
plt.show()

And here's the output:

Make your array a variable and use implode.

$array = array('lastname', 'email', 'phone');
$comma_separated = implode(",", $array);

echo $comma_separated; // lastname,email,phone

http://php.net/manual/en/function.implode.php

Adding on to Adrian Gallero's answer:

Calling a generic method from type info involves three steps.

TLDR: Calling a known generic method with a type object can be accomplished by:

((Action)GenericMethod<object>)
    .Method
    .GetGenericMethodDefinition()
    .MakeGenericMethod(typeof(string))
    .Invoke(this, null);

where GenericMethod<object> is the method name to call and any type that satisfies the generic constraints.

(Action) matches the signature of the method to be called i.e. (Func<string,string,int> or Action<bool>)

Step 1 is getting the MethodInfo for the generic method definition

Method 1: Use GetMethod() or GetMethods() with appropriate types or binding flags.

MethodInfo method = typeof(Sample).GetMethod("GenericMethod");

Method 2: Create a delegate, get the MethodInfo object and then call GetGenericMethodDefinition

From inside the class that contains the methods:

MethodInfo method = ((Action)GenericMethod<object>)
    .Method
    .GetGenericMethodDefinition();

MethodInfo method = ((Action)StaticMethod<object>)
    .Method
    .GetGenericMethodDefinition();

From outside of the class that contains the methods:

MethodInfo method = ((Action)(new Sample())
    .GenericMethod<object>)
    .Method
    .GetGenericMethodDefinition();

MethodInfo method = ((Action)Sample.StaticMethod<object>)
    .Method
    .GetGenericMethodDefinition();

In C#, the name of a method, i.e. "ToString" or "GenericMethod" actually refers to a group of methods that may contain one or more methods. Until you provide the types of the method parameters, it is not known which method you are referring to.

((Action)GenericMethod<object>) refers to the delegate for a specific method. ((Func<string, int>)GenericMethod<object>) refers to a different overload of GenericMethod

Method 3: Create a lambda expression containing a method call expression, get the MethodInfo object and then GetGenericMethodDefinition

MethodInfo method = ((MethodCallExpression)((Expression<Action<Sample>>)(
    (Sample v) => v.GenericMethod<object>()
    )).Body).Method.GetGenericMethodDefinition();

This breaks down to

Create a lambda expression where the body is a call to your desired method.

Expression<Action<Sample>> expr = (Sample v) => v.GenericMethod<object>();

Extract the body and cast to MethodCallExpression

MethodCallExpression methodCallExpr = (MethodCallExpression)expr.Body;

Get the generic method definition from the method

MethodInfo methodA = methodCallExpr.Method.GetGenericMethodDefinition();

Step 2 is calling MakeGenericMethod to create a generic method with the appropriate type(s).

MethodInfo generic = method.MakeGenericMethod(myType);

Step 3 is invoking the method with the appropriate arguments.

generic.Invoke(this, null);

You have to use Bootstrap version 4 with the custom-* classes to get this style:

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
_x000D_
<!-- example code of the bootstrap website -->_x000D_
<label class="custom-control custom-checkbox">_x000D_
  <input type="checkbox" class="custom-control-input">_x000D_
  <span class="custom-control-indicator"></span>_x000D_
  <span class="custom-control-description">Check this custom checkbox</span>_x000D_
</label>_x000D_
_x000D_
<!-- your code with the custom classes of version 4 -->_x000D_
<div class="checkbox">_x000D_
  <label class="custom-control custom-checkbox">_x000D_
    <input type="checkbox" [(ngModel)]="rememberMe" name="rememberme" class="custom-control-input">_x000D_
    <span class="custom-control-indicator"></span>_x000D_
    <span class="custom-control-description">Remember me</span>_x000D_
  </label>_x000D_
</div>

Documentation: https://getbootstrap.com/docs/4.0/components/forms/#checkboxes-and-radios-1

Custom checkbox style on Bootstrap version 3?
Bootstrap version 3 doesn't have custom checkbox styles, but you can use your own. In this case: How to style a checkbox using CSS?

These custom styles are only available since version 4.

Regarding the issue with 'size', size is not a function on a dataframe, it is rather a property. So instead of using size(), plain size should work

Apart from that, a method like this should work

 def doCalculation(df):
    groupCount = df.size
    groupSum = df['my_labels'].notnull().sum()

    return groupCount / groupSum

dataFrame.groupby('my_labels').apply(doCalculation)

This question has been already answered in Unicode characters in Windows command line - how?

You missed one step -> you need to use Lucida console fonts in addition to executing chcp 65001 from cmd console.

I know this is old but this answer still applies to newer Core releases.

If by chance your DbContext implementation is in a different project than your startup project and you run ef migrations, you'll see this error because the command will not be able to invoke the application's startup code leaving your database provider without a configuration. To fix it, you have to let ef migrations know where they're at.

dotnet ef migrations add MyMigration [-p <relative path to DbContext project>, -s <relative path to startup project>]

Both -s and -p are optionals that default to the current folder.

this code runs permanently!!! created by diko(Turkey)

public void mysql() {

    try {
        Class.forName("com.mysql.jdbc.Driver");
    } catch (ClassNotFoundException e) {
        e.printStackTrace();

    }

    thrd1 = new Thread(new Runnable() {
        public void run() {
            while (!Thread.interrupted()) {
                try {
                    Thread.sleep(100);
                } catch (InterruptedException e1) {

                }
                if (con == null) {
                    try {
                        con = DriverManager.getConnection("jdbc:mysql://192.168.1.45:3306/deneme", "ali", "12345");

                    } catch (SQLException e) {
                        e.printStackTrace();
                        con = null;
                    }

                    if ((thrd2 != null) && (!thrd2.isAlive()))
                        thrd2.start();

                }
            }

        }
    });
    if ((thrd1 != null) && (!thrd1.isAlive())) thrd1.start();

    thrd2 = new Thread(new Runnable() {
        public void run() {
            while (!Thread.interrupted()) {

                if (con != null) {
                    try {
                     //   con = DriverManager.getConnection("jdbc:mysql://192.168.1.45:3306/deneme", "ali", "12345");
                        Statement st = con.createStatement();
                        String ali = "'fff'";
                        st.execute("INSERT INTO deneme (name) VALUES(" + ali + ")");
                      //  ResultSet rs = st.executeQuery("select * from deneme");
                      //  ResultSetMetaData rsmd = rs.getMetaData();
                      //  String result = new String();


                      //  while (rs.next()) {
                      //      result += rsmd.getColumnName(1) + ": " + rs.getInt(1) + "\n";
                     //       result += rsmd.getColumnName(2) + ": " + rs.getString(2) + "\n";


                     //   }

                    } catch (SQLException e) {
                        e.printStackTrace();
                        con = null;
                    }

                    try {
                        Thread.sleep(10);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                } else {
                    try {
                        Thread.sleep(300);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }

    });


}

If you're looking to paginate results, use the integrated paginator, it works great!

$games = Game::paginate(30);
// $games->results = the 30 you asked for
// $games->links() = the links to next, previous, etc pages

The modern answer:

if your app support split view on iPad, this problem becomes a little complicated. You need window's size, not the screen's, which may contain 2 apps. Window's size may also vary while running.

Use app's main window's size:

UIApplication.shared.delegate?.window??.bounds.size ?? .zero

Note: The method above may get wrong value before window becoming key window when starting up. if you only need width, method below is very recommended:

UIApplication.shared.statusBarFrame.width

The old solution using UIScreen.main.bounds will return the device's bounds. If your app running in split view mode, it get the wrong dimensions.

self.view.window in the hottest answer may get wrong size when app contains 2 or more windows and the window have small size.

CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name
[(create_definition,...)]
[table_options]
select_statement

Example :

CREATE TEMPORARY TABLE IF NOT EXISTS mytable
(id int(11) NOT NULL, PRIMARY KEY (id)) ENGINE=MyISAM;
INSERT IGNORE INTO mytable SELECT id FROM table WHERE xyz;

Given the latest and greatest changes to .NET (+ Core) and C# 7, here is the best solution:

var ignoreCase = true;
Enum.TryParse("red", ignoreCase , out MyColours colour);

colour variable can be used within the scope of Enum.TryParse

The original question was for MySQL and SQL in general. The example below is for the new versions of MySQL. Unfortunately, a generic query that would work on any SQL server is not possible. Some servers do no support CTE, others do not have substring_index, yet others have built-in functions for splitting a string into multiple rows.

--- the answer follows ---

Recursive queries are convenient when the server does not provide built-in functionality. They can also be the bottleneck.

The following query was written and tested on MySQL version 8.0.16. It will not work on version 5.7-. The old versions do not support Common Table Expression (CTE) and thus recursive queries.

with recursive
  input as (
        select 1 as id, 'a,b,c' as names
      union
        select 2, 'b'
    ),
  recurs as (
        select id, 1 as pos, names as remain, substring_index( names, ',', 1 ) as name
          from input
      union all
        select id, pos + 1, substring( remain, char_length( name ) + 2 ),
            substring_index( substring( remain, char_length( name ) + 2 ), ',', 1 )
          from recurs
          where char_length( remain ) > char_length( name )
    )
select id, name
  from recurs
  order by id, pos;

set "CMD=C:\Program Files (x86)\PDFtk\bin\pdftk"
echo cmd /K ""%CMD%" %D% output trimmed.pdf"
start cmd /K ""%CMD%" %D% output trimmed.pdf"

this worked for me in a batch file

Database is a collection of schemas and schema is a collection of tables. But in MySQL they use it the same way.

The Pro Git book mentions:

Tracking branches are local branches that have a direct relationship to a remote branch

Not exactly. The SO question "Having a hard time understanding git-fetch" includes:

There's no such concept of local tracking branches, only remote tracking branches.
So origin/master is a remote tracking branch for master in the origin repo.

But actually, once you establish an upstream branch relationship between:

• a local branch like master
• and a remote tracking branch like origin/master

Then you can consider master as a local tracking branch: It tracks the remote tracking branch origin/master which, in turn, tracks the master branch of the upstream repo origin.

I catch the next case about cors. Maybe it will be useful to somebody. If you add feature 'WebDav Redirector' to your server, PUT and DELETE requests are failed.

So, you will need to remove 'WebDAVModule' from your IIS server:

• "In the IIS modules Configuration, loop up the WebDAVModule, if your web server has it, then remove it".

Or add to your config:

<system.webServer>
<modules>
  <remove name="WebDAVModule"/>
</modules>
<handlers>
  <remove name="WebDAV" />
  ...
</handlers>

I would recommend background-size: cover; if you don't want your background to lose its proportions: JS Fiddle

html { 
  background: url(image/path) no-repeat center center fixed; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

Source: http://css-tricks.com/perfect-full-page-background-image/

If you want to rule out any problems with the else part, try removing the else and place the command on a new line. Like this:

IF EXIST D:\RPS_BACKUP\backups_temp\ goto tempexists
goto tempexistscontinue  

I think that the best way to do this is:

Stash your local changes:

git stash

Update the branch to the latest code

git pull

Merge your local changes into the latest code:

git stash apply

Add, commit and push your changes

git add
git commit
git push

In my experience this is the path to least resistance with Git (on the command line anyway).

I found myself in a similar case, wanting to generate display groups of 3 columns each. However, although I was using bootstrap, I was trying to separate these groups into different parent divs. I also wanted to make something generically useful.

I approached it with 2 ng-repeat as below:

<div ng-repeat="items in quotes" ng-if="!($index % 3)">
  <div ng-repeat="quote in quotes" ng-if="$index <= $parent.$index + 2 && $index >= $parent.$index">
                ... some content ...
  </div>
</div>

This makes it very easy to change to a different number of columns, and separated out into several parent divs.

Maybe not the best solution, but it worked for me.

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.VisualBasic")
$VBObject=[Microsoft.VisualBasic.Devices.ComputerInfo]::new()
$SystemMemory=$VBObject.TotalPhysicalMemory

It is also possible to round negative integers

// performing d = c * 3/4 where d can be pos or neg
d = ((c * a) + ((c>0? (b>>1):-(b>>1)))) / b;
// explanation:
// 1.) multiply:          c * a  
// 2.) if c is negative:  (c>0? subtract half of the dividend 
//                              (b>>1) is bit shift right = (b/2)
//     if c is positive:  else  add half of the dividend 
// 3.) do the division
// on a C51/52 (8bit embedded) or similar like ATmega the below code may execute in approx 12cpu cycles (not tested)

Extended from a tip somewhere else in here. Sorry, missed from where.

/* Example test: integer rounding example including negative*/
#include <stdio.h>
#include <string.h>

int main () {
   //rounding negative int
   // doing something like d = c * 3/4
   int a=3;
   int b=4;
   int c=-5;
   int d;
   int s=c;
   int e=c+10;


   for(int f=s; f<=e; f++) {
      printf("%d\t",f);

      double cd=f, ad=a, bd=b , dd;

      // d = c * 3/4  with double
      dd = cd * ad / bd;

      printf("%.2f\t",dd);
      printf("%.1f\t",dd);        
      printf("%.0f\t",dd);

      // try again with typecast have used that a lot in Borland C++ 35 years ago....... maybe evolution has overtaken it ;) ***
      // doing div before mul on purpose
      dd =(double)c * ((double)a / (double)b);
      printf("%.2f\t",dd);

      c=f;
      // d = c * 3/4  with integer rounding
      d = ((c * a) + ((c>0? (b>>1):-(b>>1)))) / b;
      printf("%d\t",d);
      puts("");
  }
 return 0;
}

/* test output
in  2f     1f   0f cast int   
-5  -3.75   -3.8    -4  -3.75   -4  
-4  -3.00   -3.0    -3  -3.75   -3  
-3  -2.25   -2.2    -2  -3.00   -2  
-2  -1.50   -1.5    -2  -2.25   -2  
-1  -0.75   -0.8    -1  -1.50   -1  
 0   0.00    0.0     0  -0.75    0  
 1   0.75    0.8     1   0.00    1  
 2   1.50    1.5     2   0.75    2  
 3   2.25    2.2     2   1.50    2  
 4   3.00    3.0     3   2.25  3    
 5   3.75    3.8     4   3.00   

// by the way evolution: 
// Is there any decent small integer library out there for that by now?

I have create project on github app-foreground-background-listen

which uses very simple logic and works fine with all android API level.

I've seen GCC turn the conditional operator into cmov (conditional move) instructions, while turning if statements into branches, which meant in our case, the code was faster when using the conditional operator. But that was a couple of years ago, and most likely today, both would compile to the same code.

There's no guarantee that they'll compile to the same code. If you need the performance then, as always, measure. And when you've measured and found out that 1. your code is too slow, and 2. it is this particular chunk of code that is the culprit, then study the assembly code generated by the compiler and check for yourself what is happening.

Don't trust golden rules like "the compiler will always generate more efficient code if I use the conditional operator".

<- does assignment in the current environment.

When you're inside a function R creates a new environment for you. By default it includes everything from the environment in which it was created so you can use those variables as well but anything new you create will not get written to the global environment.

In most cases <<- will assign to variables already in the global environment or create a variable in the global environment even if you're inside a function. However, it isn't quite as straightforward as that. What it does is checks the parent environment for a variable with the name of interest. If it doesn't find it in your parent environment it goes to the parent of the parent environment (at the time the function was created) and looks there. It continues upward to the global environment and if it isn't found in the global environment it will assign the variable in the global environment.

This might illustrate what is going on.

bar <- "global"
foo <- function(){
    bar <- "in foo"
    baz <- function(){
        bar <- "in baz - before <<-"
        bar <<- "in baz - after <<-"
        print(bar)
    }
    print(bar)
    baz()
    print(bar)
}
> bar
[1] "global"
> foo()
[1] "in foo"
[1] "in baz - before <<-"
[1] "in baz - after <<-"
> bar
[1] "global"

The first time we print bar we haven't called foo yet so it should still be global - this makes sense. The second time we print it's inside of foo before calling baz so the value "in foo" makes sense. The following is where we see what <<- is actually doing. The next value printed is "in baz - before <<-" even though the print statement comes after the <<-. This is because <<- doesn't look in the current environment (unless you're in the global environment in which case <<- acts like <-). So inside of baz the value of bar stays as "in baz - before <<-". Once we call baz the copy of bar inside of foo gets changed to "in baz" but as we can see the global bar is unchanged. This is because the copy of bar that is defined inside of foo is in the parent environment when we created baz so this is the first copy of bar that <<- sees and thus the copy it assigns to. So <<- isn't just directly assigning to the global environment.

<<- is tricky and I wouldn't recommend using it if you can avoid it. If you really want to assign to the global environment you can use the assign function and tell it explicitly that you want to assign globally.

Now I change the <<- to an assign statement and we can see what effect that has:

bar <- "global"
foo <- function(){
    bar <- "in foo"   
    baz <- function(){
        assign("bar", "in baz", envir = .GlobalEnv)
    }
    print(bar)
    baz()
    print(bar)
}
bar
#[1] "global"
foo()
#[1] "in foo"
#[1] "in foo"
bar
#[1] "in baz"

So both times we print bar inside of foo the value is "in foo" even after calling baz. This is because assign never even considered the copy of bar inside of foo because we told it exactly where to look. However, this time the value of bar in the global environment was changed because we explicitly assigned there.

Now you also asked about creating local variables and you can do that fairly easily as well without creating a function... We just need to use the local function.

bar <- "global"
# local will create a new environment for us to play in
local({
    bar <- "local"
    print(bar)
})
#[1] "local"
bar
#[1] "global"

I don't know about the runtime disadvantages about the following but you could run a regexp match on your string to make sure it is a number before trying to parse it, thus

cost.matches("-?\\d+\\.?\\d+")

for a float

and

cost.matches("-?\\d+")

for an integer

EDIT

please notices @Voo's comment about max int

I had that issue and here is much simpler solution:

• Make a dir (eg: swagger-ui) in your public dir (static path: no route is required) and copy dist from swagger-ui into that directory and open localhost/swagger-ui
• You will see swagger-ui with default petstore example

• Replace default petstore url in dist/index.html with your localhost/api-docs or to make it more generalized, replace with this:

  location.protocol+'//' + location.hostname+(location.port ? ':' + location.port: '') + "/api-docs";

• Hit again localhost/swagger-ui

Voila! You local swagger implementation is ready

>>> for n,c in enumerate(text):
...   try:
...     if c+text[n+1] == "ll": print n
...   except: pass
...
1
10
16

Format %lf is a perfectly correct printf format for double, exactly as you used it. There's nothing wrong with your code.

Format %lf in printf was not supported in old (pre-C99) versions of C language, which created superficial "inconsistency" between format specifiers for double in printf and scanf. That superficial inconsistency has been fixed in C99.

You are not required to use %lf with double in printf. You can use %f as well, if you so prefer (%lf and %f are equivalent in printf). But in modern C it makes perfect sense to prefer to use %f with float, %lf with double and %Lf with long double, consistently in both printf and scanf.

You are reassigning item to the values in z as you iterate through z. So the first time in your for loop, item = 0, next item = 1, etc... You are never checking one list against the other.

To do it very explicitly:

>>> item = [0,1,2,3,4,5,6,7,8,9]
>>> z = [0,1,2,3,4,5,6,7]
>>> 
>>> for elem in item:
...   if elem not in z:
...     print elem
... 
8
9

s = 'bla, buu, jii'

sp = []
sp = s.split(',')
for st in sp:
    print st

You can try the following steps and code using qrtools:

• Create a qrcode file, if not already existing

  • I used pyqrcode for doing this, which can be installed using pip install pyqrcode

  • And then use the code:

    >>> import pyqrcode
    >>> qr = pyqrcode.create("HORN O.K. PLEASE.")
    >>> qr.png("horn.png", scale=6)
    

• Decode an existing qrcode file using qrtools

  • Install qrtools using sudo apt-get install python-qrtools

  • Now use the following code within your python prompt

    >>> import qrtools
    >>> qr = qrtools.QR()
    >>> qr.decode("horn.png")
    >>> print qr.data
    u'HORN O.K. PLEASE.'
    

Here is the complete code in a single run:

In [2]: import pyqrcode
In [3]: qr = pyqrcode.create("HORN O.K. PLEASE.")
In [4]: qr.png("horn.png", scale=6)
In [5]: import qrtools
In [6]: qr = qrtools.QR()
In [7]: qr.decode("horn.png")
Out[7]: True
In [8]: print qr.data
HORN O.K. PLEASE.

Caveats

• You might need to install PyPNG using pip install pypng for using pyqrcode

• In case you have PIL installed, you might get IOError: decoder zip not available. In that case, try uninstalling and reinstalling PIL using:

  pip uninstall PIL
  pip install PIL
  

• If that doesn't work, try using Pillow instead

  pip uninstall PIL
  pip install pillow
  

It's an interesting question, because it shows that there are a lot of different approaches to achieve the same result. Below I show three different implementations.

Default methods in Collection Framework: Java 8 added some methods to the collections classes, that are not directly related to the Stream API. Using these methods, you can significantly simplify the implementation of the non-stream implementation:

Collection<DataSet> convert(List<MultiDataPoint> multiDataPoints) {
    Map<String, DataSet> result = new HashMap<>();
    multiDataPoints.forEach(pt ->
        pt.keyToData.forEach((key, value) ->
            result.computeIfAbsent(
                key, k -> new DataSet(k, new ArrayList<>()))
            .dataPoints.add(new DataPoint(pt.timestamp, value))));
    return result.values();
}

Stream API with flatten and intermediate data structure: The following implementation is almost identical to the solution provided by Stuart Marks. In contrast to his solution, the following implementation uses an anonymous inner class as intermediate data structure.

Collection<DataSet> convert(List<MultiDataPoint> multiDataPoints) {
    return multiDataPoints.stream()
        .flatMap(mdp -> mdp.keyToData.entrySet().stream().map(e ->
            new Object() {
                String key = e.getKey();
                DataPoint dataPoint = new DataPoint(mdp.timestamp, e.getValue());
            }))
        .collect(
            collectingAndThen(
                groupingBy(t -> t.key, mapping(t -> t.dataPoint, toList())),
                m -> m.entrySet().stream().map(e -> new DataSet(e.getKey(), e.getValue())).collect(toList())));
}

Stream API with map merging: Instead of flattening the original data structures, you can also create a Map for each MultiDataPoint, and then merge all maps into a single map with a reduce operation. The code is a bit simpler than the above solution:

Collection<DataSet> convert(List<MultiDataPoint> multiDataPoints) {
    return multiDataPoints.stream()
        .map(mdp -> mdp.keyToData.entrySet().stream()
            .collect(toMap(e -> e.getKey(), e -> asList(new DataPoint(mdp.timestamp, e.getValue())))))
        .reduce(new HashMap<>(), mapMerger())
        .entrySet().stream()
        .map(e -> new DataSet(e.getKey(), e.getValue()))
        .collect(toList());
}

You can find an implementation of the map merger within the Collectors class. Unfortunately, it is a bit tricky to access it from the outside. Following is an alternative implementation of the map merger:

<K, V> BinaryOperator<Map<K, List<V>>> mapMerger() {
    return (lhs, rhs) -> {
        Map<K, List<V>> result = new HashMap<>();
        lhs.forEach((key, value) -> result.computeIfAbsent(key, k -> new ArrayList<>()).addAll(value));
        rhs.forEach((key, value) -> result.computeIfAbsent(key, k -> new ArrayList<>()).addAll(value));
        return result;
    };
}

The code says everything:

max@serv$ chmod 777 .

Okay, it doesn't say everything.

In UNIX and Linux, the ability to remove a file is not determined by the access bits of that file. It is determined by the access bits of the directory which contains the file.

Think of it this way -- deleting a file doesn't modify that file. You aren't writing to the file, so why should "w" on the file matter? Deleting a file requires editing the directory that points to the file, so you need "w" on the that directory.

regex: /^[a-zA-Z0-9_.]$/i

This works

This is a common question. In base, the option you're looking for is aggregate. Assuming your data.frame is called "mydf", you can use the following.

> aggregate(B ~ A, mydf, sum)
  A  B
1 1  5
2 2  3
3 3 11

I would also recommend looking into the "data.table" package.

> library(data.table)
> DT <- data.table(mydf)
> DT[, sum(B), by = A]
   A V1
1: 1  5
2: 2  3
3: 3 11

Had the same problem. A colleague solved this with jQuery.Globalize.

<script src="/Scripts/jquery.validate.js" type="text/javascript"></script>
<script src="/Scripts/jquery.globalize/globalize.js" type="text/javascript"></script>
<script src="/Scripts/jquery.globalize/cultures/globalize.culture.nl.js"></script>
<script type="text/javascript">
    var lang = 'nl';

    $(function () {
        Globalize.culture(lang);
    });

    // fixing a weird validation issue with dates (nl date notation) and Google Chrome
    $.validator.methods.date = function(value, element) {
        var d = Globalize.parseDate(value);
        return this.optional(element) || !/Invalid|NaN/.test(d);
    };
</script>

I am using jQuery Datepicker for selecting the date.

First set position of the parent DIV to relative (specifying the offset, i.e. left, top etc. is not necessary) and then apply position: absolute to the child DIV with the offset you want.
It's simple and should do the trick well.

If your code, if the user enters 'X' (for instance), when you reach the while condition evaluation it will determine that 'X' is differente from 'n' (nChar != 'n') which will make your loop condition true and execute the code inside of your loop. The second condition is not even evaluated.

Given this route

app.get('/hi/:param1', function(req,res){} );

and given this URL http://www.google.com/hi/there?qs1=you&qs2=tube

You will have:

req.query

{
  qs1: 'you',
  qs2: 'tube'
}

req.params

{
  param1: 'there'
}

Express req.params >>

res = method.delay()
    
print(f"id={res.id}, state={res.state}, status={res.status} ")

print(res.get())

I had the same problem because there was files with windows-1251 encoding and Cyrillic comments. In Android Studio which is based on IntelliJ IDEA you can solve it in two ways:

a) convert file encoding to UTF-8 or

b) set the right file encoding in your build.gradle script:

android {
    ...
    compileOptions.encoding = 'windows-1251' // write your encoding here
    ...

To convert file encoding use the menu at the bottom right corner of IDE. Select right file encoding first -> press Reload -> select UTF-8 -> press Convert.

Also read this Use the UTF-8, Luke! File Encodings in IntelliJ IDEA

Python is very picky about white space and indentation, more so than many languages. The reason is, rather than using curly braces and semi colons (like javascript or php) python looks for a return character (press enter/return on your keyboard) instead of the semicolon, and a colon with a tab after it for a opening curly brace. When the next piece of code is unindented, it expects that this is the same as a closing curly brace in Javascript or PHP.

From ==>https://teamtreehouse.com/community/what-is-a-indentationerror-expected-an-indented-block

If you run Visual Studio from Admin you can add just

<binding protocol="http" bindingInformation="*:8080:*" />

or

<binding protocol="https" bindingInformation="*:8443:*" />

into

%userprofile%\My Documents\IISExpress\config\applicationhost.config

Another method without having to update your Python code at all, would be to redirect via the console.

Basically, have your Python script print() as usual, then call the script from the command line and use command line redirection. Like this:

$ python ./myscript.py > output.txt

Your output.txt file will now contain all output from your Python script.

Edit:
To address the comment; for Windows, change the forward-slash to a backslash.
(i.e. .\myscript.py)

look at the following program for complete conversion concept

class typetest{
    public static void main(String args[]){
        byte a=1,b=2;
        char c=1,d='b';
        short e=3,f=4;
        int g=5,h=6;
        float i;
        double k=10.34,l=12.45;
        System.out.println("value of char variable c="+c);
        // if we assign an integer value in char cariable it's possible as above
        // but it's not possible to assign int value from an int variable in char variable 
        // (d=g assignment gives error as incompatible type conversion)
        g=b;
        System.out.println("char to int conversion is possible");
        k=g;
        System.out.println("int to double conversion is possible");
        i=h;
        System.out.println("int to float is possible and value of i = "+i);
        l=i;
        System.out.println("float to double is possible");
    }
}

hope ,it will help at least something

following steps might help any one

1. check error log of apache2
2. check folder permission is it accessible ? if not set it
3. add following in vhost file <Directory "c://"> Options Indexes FollowSymLinks MultiViews AllowOverride all Order Deny,Allow Allow from all Require all granted
4. last but might save time like mine check folder name(case sensitive "Pubic" is different form "public") you put in vhosts file and actual name. thanks

READY TO USE FUNCTION (using Promise)

/**
 * Select file(s).
 * @param {String} contentType The content type of files you wish to select. For instance "image/*" to select all kinds of images.
 * @param {Boolean} multiple Indicates if the user can select multiples file.
 * @returns {Promise<File|File[]>} A promise of a file or array of files in case the multiple parameter is true.
 */
function (contentType, multiple){
    return new Promise(resolve => {
        let input = document.createElement('input');
        input.type = 'file';
        input.multiple = multiple;
        input.accept = contentType;

        input.onchange = _ => {
            let files = Array.from(input.files);
            if (multiple)
                resolve(files);
            else
                resolve(files[0]);
        };

        input.click();
    });
}

TEST IT

// Content wrapper element_x000D_
let contentElement = document.getElementById("content");_x000D_
_x000D_
// Button callback_x000D_
async function onButtonClicked(){_x000D_
    let files = await selectFile("image/*", true);_x000D_
    contentElement.innerHTML = files.map(file => `<img src="${URL.createObjectURL(file)}" style="width: 100px; height: 100px;">`).join('');_x000D_
}_x000D_
_x000D_
// ---- function definition ----_x000D_
function selectFile (contentType, multiple){_x000D_
    return new Promise(resolve => {_x000D_
        let input = document.createElement('input');_x000D_
        input.type = 'file';_x000D_
        input.multiple = multiple;_x000D_
        input.accept = contentType;_x000D_
_x000D_
        input.onchange = _ => {_x000D_
            let files = Array.from(input.files);_x000D_
            if (multiple)_x000D_
                resolve(files);_x000D_
            else_x000D_
                resolve(files[0]);_x000D_
        };_x000D_
_x000D_
        input.click();_x000D_
    });_x000D_
}

<button onclick="onButtonClicked()">Select images</button>_x000D_
<div id="content"></div>

To late for the original asker of the question, but with SQL Server 2008 R2 this is now possible:

Set the property "Pagebreak" on the tablix or table or other element to force a new tab, and then set the property "Pagename" on both the element before the pagebreak and the element after the pagebreak. These names will appear on the tabs when the report is exported to Excel.

Read about it here: http://technet.microsoft.com/en-us/library/dd255278.aspx

You can set protocol versions in system property as :

overcome ssl handshake error

System.setProperty("https.protocols", "TLSv1,TLSv1.1,TLSv1.2");

New is always used to allocate dynamic memory, which then has to be freed.

By doing the first option, that memory will be automagically freed when scope is lost.

Point p1 = Point(0,0); //This is if you want to be safe and don't want to keep the memory outside this function.

Point* p2 = new Point(0, 0); //This must be freed manually. with...
delete p2;

Yes, it is legal to have a primary key being a foreign key. This is a rare construct, but it applies for:

• a 1:1 relation. The two tables cannot be merged in one because of different permissions and privileges only apply at table level (as of 2017, such a database would be odd).

• a 1:0..1 relation. Profile may or may not exist, depending on the user type.

• performance is an issue, and the design acts as a partition: the profile table is rarely accessed, hosted on a separate disk or has a different sharding policy as compared to the users table. Would not make sense if the underlining storage is columnar.

Blank screen also happens when your Laravel app tries to display too much information and PHP limits kick in (for example displaying tens of thousands of database records on a single page). The worst part is, you won't see any errors in the Laravel logs. You probably won't see any errors in the PHP FPM logs as well. You might find errors in your http server logs, for example nginx throws something like FastCGI sent in stderr: "PHP message: PHP Fatal error: Allowed memory size of XXX bytes exhausted.

Short tip: add ->limit(1000) where 1000 is your limit, on your query object.

To delete the last element from the list just do this.

a = [1,2,3,4,5]
a = a[:-1]
#Output [1,2,3,4] 

I came here looking for an answer and ended up finding it myself, thanks to the previous responses.

In my particular case, while editing PHP code on Eclipse Juno, I have found that the previous commands won't work for me. Instead of them, I should press Ctrl+ 7 (on the superior number key) to obtain the double bar comment ("//"). There's no way I can comment them with the previous mentioned key combinations.

You're looking for the /Y switch.

Try this -

this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);

Alternatively,

1. you could also declare in your manifest file's activity -

<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".Main"
          android:label="@string/app_name"
          android:windowSoftInputMode="stateHidden"
          >

2. If you have already been using android:windowSoftInputMode for a value like adjustResize or adjustPan, you can combine two values like:

<activity
        ...
        android:windowSoftInputMode="stateHidden|adjustPan"
        ...
        >

This will hide the keyboard whenever appropriate but pan the activity view in case the keyboard has to be shown.

First of all this is JavaScript and not C#

Then you cannot disable a div because it normally has no functionality. To disable a click event, you simply have to remove the event from the dom object. (bind and unbind)...

String.prototype.toPrice = function () {
    var v;
    if (/^\d+(,\d+)$/.test(this))
        v = this.replace(/,/, '.');
    else if (/^\d+((,\d{3})*(\.\d+)?)?$/.test(this))
        v = this.replace(/,/g, "");
    else if (/^\d+((.\d{3})*(,\d+)?)?$/.test(this))
        v = this.replace(/\./g, "").replace(/,/, ".");
    var x = parseFloat(v).toFixed(2).toString().split("."),
    x1 = x[0],
    x2 = ((x.length == 2) ? "." + x[1] : ".00"),
    exp = /^([0-9]+)(\d{3})/;
    while (exp.test(x1))
        x1 = x1.replace(exp, "$1" + "," + "$2");
    return x1 + x2;
}

alert("123123".toPrice()); //123,123.00
alert("123123,316".toPrice()); //123,123.32
alert("12,312,313.33213".toPrice()); //12,312,313.33
alert("123.312.321,32132".toPrice()); //123,312,321.32

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

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

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

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

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

Try  

as per the docs :

The character entities   and   denote an en space and an em space respectively, where an en space is half the point size and an em space is equal to the point size of the current font. For fixed pitch fonts, the user agent can treat the en space as being equivalent to A space character, and the em space as being equuivalent to two space characters.

Docs link : https://www.w3.org/MarkUp/html3/specialchars.html

Here is a function that takes in another function and outputs a version that runs async.

var async = function (func) {
  return function () {
    var args = arguments;
    setTimeout(function () {
      func.apply(this, args);
    }, 0);
  };
};

It is used as a simple way to make an async function:

var anyncFunction = async(function (callback) {
    doSomething();
    callback();
});

This is different from @fider's answer because the function itself has its own structure (no callback added on, it's already in the function) and also because it creates a new function that can be used.

For the easiest scenario when you hide cells at the very bottom of table view, you could adjust tableView's contentInset after you hide cell:

- (void)adjustBottomInsetForHiddenSections:(NSInteger)numberOfHiddenSections
{
    CGFloat bottomInset = numberOfHiddenSections * 44.0; // or any other 'magic number
    self.tableView.contentInset = UIEdgeInsetsMake(self.tableView.contentInset.top, self.tableView.contentInset.left, -bottomInset, self.tableView.contentInset.right);
}

Or, if you don't need else clause:

[ "$x" == "valid" ] && echo "x has the value 'valid'"

Here is an example of reading and writing a list of objects of type SNStock that implements NSCoding - we have an accessor for the entire list, watchlist, and two methods to add and remove objects, that is addStock(stock: SNStock) and removeStock(stock: SNStock).

import Foundation

class DWWatchlistController {

  private let kNSUserDefaultsWatchlistKey: String = "dw_watchlist_key"

  private let userDefaults: NSUserDefaults

  private(set) var watchlist:[SNStock] {

    get {
      if let watchlistData : AnyObject = userDefaults.objectForKey(kNSUserDefaultsWatchlistKey) {
        if let watchlist : AnyObject = NSKeyedUnarchiver.unarchiveObjectWithData(watchlistData as! NSData) {
          return watchlist as! [SNStock]
        }
      }
      return []
    }

    set(watchlist) {
      let watchlistData = NSKeyedArchiver.archivedDataWithRootObject(watchlist)
      userDefaults.setObject(watchlistData, forKey: kNSUserDefaultsWatchlistKey)
      userDefaults.synchronize()
    }
  }

  init() {
    userDefaults = NSUserDefaults.standardUserDefaults()
  }

  func addStock(stock: SNStock) {
    var watchlist = self.watchlist
    watchlist.append(stock)
    self.watchlist = watchlist
  }

  func removeStock(stock: SNStock) {
    var watchlist = self.watchlist
    if let index = find(watchlist, stock) {
      watchlist.removeAtIndex(index)
      self.watchlist = watchlist
    }
  }

}

Remember that your object needs to implement NSCoding or else the encoding won't work. Here is what SNStock looks like:

import Foundation

class SNStock: NSObject, NSCoding
{
  let ticker: NSString
  let name: NSString

  init(ticker: NSString, name: NSString)
  {
    self.ticker = ticker
    self.name = name
  }

  //MARK: NSCoding

  required init(coder aDecoder: NSCoder) {
    self.ticker = aDecoder.decodeObjectForKey("ticker") as! NSString
    self.name = aDecoder.decodeObjectForKey("name") as! NSString
  }

  func encodeWithCoder(aCoder: NSCoder) {
    aCoder.encodeObject(ticker, forKey: "ticker")
    aCoder.encodeObject(name, forKey: "name")
  }

  //MARK: NSObjectProtocol

  override func isEqual(object: AnyObject?) -> Bool {
    if let object = object as? SNStock {
      return self.ticker == object.ticker &&
        self.name == object.name
    } else {
      return false
    }
  }

  override var hash: Int {
    return ticker.hashValue
  }
}

Hope this helps!

Swift 5.0

//Image View
let imageView = UIImageView()
imageView.backgroundColor = UIColor.blue
imageView.heightAnchor.constraint(equalToConstant: 120.0).isActive = true
imageView.widthAnchor.constraint(equalToConstant: 120.0).isActive = true
imageView.image = UIImage(named: "buttonFollowCheckGreen")

//Text Label
let textLabel = UILabel()
textLabel.backgroundColor = UIColor.yellow
textLabel.widthAnchor.constraint(equalToConstant: self.view.frame.width).isActive = true
textLabel.heightAnchor.constraint(equalToConstant: 20.0).isActive = true
textLabel.text  = "Hi World"
textLabel.textAlignment = .center

//Stack View
let stackView   = UIStackView()
stackView.axis  = NSLayoutConstraint.Axis.vertical
stackView.distribution  = UIStackView.Distribution.equalSpacing
stackView.alignment = UIStackView.Alignment.center
stackView.spacing   = 16.0

stackView.addArrangedSubview(imageView)
stackView.addArrangedSubview(textLabel)
stackView.translatesAutoresizingMaskIntoConstraints = false

self.view.addSubview(stackView)

//Constraints
stackView.centerXAnchor.constraint(equalTo: self.view.centerXAnchor).isActive = true
stackView.centerYAnchor.constraint(equalTo: self.view.centerYAnchor).isActive = true

Based on @user1046037 answer.

Here is the code with tests cases ;) :

@Test
public void testNullStringShouldReturnStringWithSpaces() throws Exception {
    String fixedString = writeAtFixedLength(null, 5);
    assertEquals(fixedString, "     ");
}

@Test
public void testEmptyStringReturnStringWithSpaces() throws Exception {
    String fixedString = writeAtFixedLength("", 5);
    assertEquals(fixedString, "     ");
}

@Test
public void testShortString_ReturnSameStringPlusSpaces() throws Exception {
    String fixedString = writeAtFixedLength("aa", 5);
    assertEquals(fixedString, "aa   ");
}

@Test
public void testLongStringShouldBeCut() throws Exception {
    String fixedString = writeAtFixedLength("aaaaaaaaaa", 5);
    assertEquals(fixedString, "aaaaa");
}


private String writeAtFixedLength(String pString, int lenght) {
    if (pString != null && !pString.isEmpty()){
        return getStringAtFixedLength(pString, lenght);
    }else{
        return completeWithWhiteSpaces("", lenght);
    }
}

private String getStringAtFixedLength(String pString, int lenght) {
    if(lenght < pString.length()){
        return pString.substring(0, lenght);
    }else{
        return completeWithWhiteSpaces(pString, lenght - pString.length());
    }
}

private String completeWithWhiteSpaces(String pString, int lenght) {
    for (int i=0; i<lenght; i++)
        pString += " ";
    return pString;
}

I like TDD ;)

Since Symfony 3.3 you can use binding, like

services:
_defaults:
    autowire: true      
    autoconfigure: true
    bind:
        $kernelProjectDir: '%kernel.project_dir%'

After that you can use parameter $kernelProjectDir in any controller OR service. Just like

class SomeControllerOrService
{
    public function someAction(...., $kernelProjectDir)
    {
          .....

// logout

if(isset($_GET['logout'])) {
    session_destroy();
    unset($_SESSION['username']);
    header('location:login.php');
}

?>

A simple solution that works for me, to work with console ability(ReadKey, String with Format and arg etc) and to see and save the output:

I write TextWriter that write to Console and to Trace and replace the Console.Out with it.

if you use Dialog -> Debugging -> Check the "Redirect All Output Window Text to the Immediate Window" you get it in the Immediate Window and pretty clean.

my code: in start of my code:

Console.SetOut(new TextHelper());

and the class:

public class TextHelper : TextWriter
{
    TextWriter console;

    public TextHelper() {
        console = Console.Out;
    }

    public override Encoding Encoding => this.console.Encoding;

    public override void WriteLine(string format, params object[] arg)
    {
        string s = string.Format(format, arg);
        WriteLine(s);
    }

    public override void Write(object value)
    {
        console.Write(value);
        System.Diagnostics.Trace.Write(value);
    }

    public override void WriteLine(object value)
    {
        Write(value);
        Write("\n");
    }

    public override void WriteLine(string value)
    {
        console.WriteLine(value);
        System.Diagnostics.Trace.WriteLine(value);
    }
}

Note: I override just what I needed so if you write other types you should override more

Use htmlspecialchars on PHP. On HTML try to avoid using:

element.innerHTML = “…”; element.outerHTML = “…”; document.write(…); document.writeln(…);

where var is controlled by the user.

Also obviously try avoiding eval(var), if you have to use any of them then try JS escaping them, HTML escape them and you might have to do some more but for the basics this should be enough.

If you are getting these type of errors when running mongod from command line or running mongodb server,
then follow these steps,

1. Create db and log directories in C: drive
   C:/data/db and C:data/log
   
2. Create an empty log file in log dir named mongo.log
   
3. Run mongod from command line to run the mongodb server or create a batch file on desktop which can run the mongod.exe file from your mongodb installation direction. That way you just have to click the batch file from your desktop and mongodb will start.
   
4. If you have 32-bit system, try using --journal with mongod command.

set /p choice= "Please Select one of the above options :" 
echo '%choice%'

The space after = is very important.

use this:

xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"

Using nick craver's solution with selectivizr allows for a cross browser solution (IE6+)

Always use latest SDK version to build:

compileSdkVersion 23

It does not affect runtime behavior, but give you latest programming features.

For ad hoc queries, the ODBC Test utility is pretty handy. Its design and interface is more oriented toward testing various parts of the ODBC API. But it works quite nicely for running queries and showing the output. It is part of the Microsoft Data Access Components.

To run a query, you can click the connect button (or use ctrl-F), choose a data source, type a query, then ctrl-E to execute it and ctrl-R to display the results (e.g., if it is a SELECT or something that returns a cursor).

If you want to avoid all the bells and whistles then may I suggest this simple sortElements plugin. Usage:

var table = $('table');

$('.sortable th')
    .wrapInner('<span title="sort this column"/>')
    .each(function(){

        var th = $(this),
            thIndex = th.index(),
            inverse = false;

        th.click(function(){

            table.find('td').filter(function(){

                return $(this).index() === thIndex;

            }).sortElements(function(a, b){

                if( $.text([a]) == $.text([b]) )
                    return 0;

                return $.text([a]) > $.text([b]) ?
                    inverse ? -1 : 1
                    : inverse ? 1 : -1;

            }, function(){

                // parentNode is the element we want to move
                return this.parentNode; 

            });

            inverse = !inverse;

        });

    });

And a demo. (click the "city" and "facility" column-headers to sort)

Swift 5

In my case I needed access to the UILabel that was clicked, so you could do this inside the gesture recognizer.

let label:UILabel = gesture.view as! UILabel

The gesture.view property contains the view of what was clicked, you can simply downcast it to what you know it is.

@IBAction func tapLabel(gesture: UITapGestureRecognizer) {

        let label:UILabel = gesture.view as! UILabel

        guard let text = label.attributedText?.string else {
            return
        }

        print(text)
}

So you could do something like above for the tapLabel function and in viewDidLoad put...

<Label>.addGestureRecognizer(UITapGestureRecognizer(target:self, action: #selector(tapLabel(gesture:))))

Just replace <Label> with your actual label name

One way would be store the current colour for each row within the model. Here's a simple model that is fixed at 3 columns and 3 rows:

static class MyTableModel extends DefaultTableModel {

    List<Color> rowColours = Arrays.asList(
        Color.RED,
        Color.GREEN,
        Color.CYAN
    );

    public void setRowColour(int row, Color c) {
        rowColours.set(row, c);
        fireTableRowsUpdated(row, row);
    }

    public Color getRowColour(int row) {
        return rowColours.get(row);
    }

    @Override
    public int getRowCount() {
        return 3;
    }

    @Override
    public int getColumnCount() {
        return 3;
    }

    @Override
    public Object getValueAt(int row, int column) {
        return String.format("%d %d", row, column);
    }
}

Note that setRowColour calls fireTableRowsUpdated; this will cause just that row of the table to be updated.

The renderer can get the model from the table:

static class MyTableCellRenderer extends DefaultTableCellRenderer {

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
        MyTableModel model = (MyTableModel) table.getModel();
        Component c = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
        c.setBackground(model.getRowColour(row));
        return c;
    }
}

Changing a row's colour would be as simple as:

model.setRowColour(1, Color.YELLOW);

I stumbled on this question while trying to do the same thing (I think). Here is how I did it:

df['index_col'] = df.index

You can then sort on the new index column, if you like.

You could use the function group.sum from package Rfast.

Category <- Rfast::as_integer(Category,result.sort=FALSE) # convert character to numeric. R's as.numeric produce NAs.
result <- Rfast::group.sum(Frequency,Category)
names(result) <- Rfast::Sort(unique(Category)
# 30 5 34

Rfast has many group functions and group.sum is one of them.

In my Firefox this trick works:

function SetPixel(canvas, x, y)
{
  canvas.beginPath();
  canvas.moveTo(x, y);
  canvas.lineTo(x+0.4, y+0.4);
  canvas.stroke();
}

Small offset is not visible on screen, but forces rendering engine to actually draw a point.

I would like to add to Justin and Power's answer that -

repartition will ignore existing partitions and create new ones. So you can use it to fix data skew. You can mention partition keys to define the distribution. Data skew is one of the biggest problems in the 'big data' problem space.

coalesce will work with existing partitions and shuffle a subset of them. It can't fix the data skew as much as repartition does. Therefore even if it is less expensive it might not be the thing you need.

I don't know anything provided by the Framework (beyond what you want to avoid) that would do what you want but (as I suspect you know) it would be pretty easy to create something simple yourself:

private DataTable GetDataTableFromDGV(DataGridView dgv) {
    var dt = new DataTable();
    foreach (DataGridViewColumn column in dgv.Columns) {
        if (column.Visible) {
            // You could potentially name the column based on the DGV column name (beware of dupes)
            // or assign a type based on the data type of the data bound to this DGV column.
            dt.Columns.Add();
        }
    }

    object[] cellValues = new object[dgv.Columns.Count];
    foreach (DataGridViewRow row in dgv.Rows) {
        for (int i = 0; i < row.Cells.Count; i++) {
            cellValues[i] = row.Cells[i].Value;
        }
        dt.Rows.Add(cellValues);
    }

    return dt;
}

IMHO the best solution is the @Kevin Stone directive, but I had to upgrade it to work in every conditions (f.e. select, textarea), and this one is working for sure:

    angular.module('app').directive('ngInitial', function($parse) {
        return {
            restrict: "A",
            compile: function($element, $attrs) {
                var initialValue = $attrs.value || $element.val();
                return {
                    pre: function($scope, $element, $attrs) {
                        $parse($attrs.ngModel).assign($scope, initialValue);
                    }
                }
            }
        }
    });

DECLARE @MyDate datetime

-- ... set your datetime's initial value ...'

DATEADD(d, 1, @MyDate)

if (var === undefined)

or more precisely

if (typeof var === 'undefined')

Note the === is used

Note: This solution only works for Mac and *nix users.

I also tried to find Jad with no luck. My quick solution was to download MacJad that contains jad. Once you downloaded it you can find jad in [where-you-downloaded-macjad]/MacJAD/Contents/Resources/jad.

Do not trust the temp folder location provided by sys_get_temp_dir if you're in a shared hosting environment.

Here is one more thing to check that has not yet been mentioned...

I assumed, naturally, that the folder where my PHP script stored temporary file uploads was /tmp. This belief was reinforced by the fact that echo sys_get_temp_dir() . PHP_EOL; returns/tmp. Also, echo ini_get('upload_tmp_dir'); returns nothing.

To verify that the uploaded file does in fact briefly appear in my /tmp folder, I added a sleep(30); statement to my script (as suggested here) and navigated to my /tmp folder in cPanel File Manager to locate the file. However, no matter what, the uploaded file was nowhere to be found there.

I spent hours trying to determine the reason for this, and implemented every suggestion that's been offered here.

Finally, after searching my website files for the query tmp, I discovered that my site contained other folders named tmp in different directories. I realized that my PHP script was actually writing the uploaded files to .cagefs/tmp. (The "Show Hidden Files" setting must be enabled in cPanel in order to view this folder.)

So, why does the sys_get_temp_dir function return inaccurate info?

Here's an explanation from the PHP.net webpage for sys_get_temp_dir (i.e., the top comment):

If running on a Linux system where systemd has PrivateTmp=true (which is the default on CentOS 7 and perhaps other newer distros), this function will simply return "/tmp", not the true, much longer, somewhat dynamic path.

This SO post delves into the issue, as well:

• Stack Overflow: sys_get_temp_dir in shared hosting environment

The aliases you give are for the output of the query - they are not available within the query itself.

You can either repeat the expression:

SELECT neededfield, CONCAT(firstname, ' ', lastname) as firstlast 
FROM users
WHERE CONCAT(firstname, ' ', lastname) = "Bob Michael Jones"

or wrap the query

SELECT * FROM (
  SELECT neededfield, CONCAT(firstname, ' ', lastname) as firstlast 
  FROM users) base 
WHERE firstLast = "Bob Michael Jones"

If you treat the content as text, not HTML, then DOM operations should cause the data to be properly encoded. Here's how you'd do it in jQuery:

$('#container').text(xmlString);

Here's how you'd do it with standard DOM methods:

document.getElementById('container')
        .appendChild(document.createTextNode(xmlString));

If you're placing the XML inside of HTML through server-side scripting, there are bound to be encoding functions to allow you to do that (if you add what your server-side technology is, we can give you specific examples of how you'd do it).

This happened to me once I tried to push from a new branch and I used git push origin master instead. You should either:

• Use: git push origin your_new_branch if you want that this branch occurs too in the remote repo.
• Else check out to your master branch merge things then push to from master to git repo with git merge origin master.

Recap: the point here is that you should check out where you offer on the second parameter for git merge. So if you are in the master use master as the second parameter if you are in the new_branch use this as the second parameter if you want to keep this branch in the remote repo else opt for the second option above instead.

awalker's answer helped me a lot!

I've changed his example to work with Django 1.3, using get_readonly_fields.

Usually you should declare something like this in app/admin.py:

class ItemAdmin(admin.ModelAdmin):
    ...
    readonly_fields = ('url',)

I've adapted in this way:

# In the admin.py file
class ItemAdmin(admin.ModelAdmin):
    ...
    def get_readonly_fields(self, request, obj=None):
        if obj:
            return ['url']
        else:
            return []

And it works fine. Now if you add an Item, the url field is read-write, but on change it becomes read-only.

As explained here, The “Iterable” was introduced to be able to use in the foreach loop. A class implementing the Iterable interface can be iterated over.

Iterator is class that manages iteration over an Iterable. It maintains a state of where we are in the current iteration, and knows what the next element is and how to get it.

To my knowledge, there is sadly no CSS filter to colorise an element (perhaps with the use of some SVG filter magic, but I'm somewhat unfamiliar with that) and even if that wasn't the case, filters are basically only supported by webkit browsers.

With that said, you could still work around this and use a canvas to modify your image. Basically, you can draw an image element onto a canvas and then loop through the pixels, modifying the respective RGBA values to the colour you want.

However, canvases do come with some restrictions. Most importantly, you have to make sure that the image src comes from the same domain as the page. Otherwise the browser won't allow you to read or modify the pixel data of the canvas.

Here's a JSFiddle changing the colour of the JSFiddle logo.

//Base64 source, but any local source will work_x000D_
var src = "data:image/png;base64,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";_x000D_
var canvas = document.getElementById("theCanvas");_x000D_
var ctx = canvas.getContext("2d");_x000D_
var img = new Image;_x000D_
_x000D_
//wait for the image to load_x000D_
img.onload = function() {_x000D_
    //Draw the original image so that you can fetch the colour data_x000D_
    ctx.drawImage(img,0,0);_x000D_
    var imgData = ctx.getImageData(0, 0, canvas.width, canvas.height);_x000D_
    _x000D_
    /*_x000D_
    imgData.data is a one-dimensional array which contains _x000D_
    the respective RGBA values for every pixel _x000D_
    in the selected region of the context _x000D_
    (note i+=4 in the loop)_x000D_
    */_x000D_
    _x000D_
    for (var i = 0; i < imgData.data.length; i+=4) {_x000D_
   imgData.data[i] = 255; //Red, 0-255_x000D_
   imgData.data[i+1] = 255; //Green, 0-255_x000D_
   imgData.data[i+2] = 255; //Blue, 0-255_x000D_
   /* _x000D_
   imgData.data[i+3] contains the alpha value_x000D_
   which we are going to ignore and leave_x000D_
   alone with its original value_x000D_
   */_x000D_
    }_x000D_
    ctx.clearRect(0, 0, canvas.width, canvas.height); //clear the original image_x000D_
    ctx.putImageData(imgData, 0, 0); //paint the new colorised image_x000D_
}_x000D_
_x000D_
//Load the image!_x000D_
img.src = src;

body {_x000D_
    background: green;_x000D_
}

<canvas id="theCanvas"></canvas>

In your example propertyInfo.GetValue(this, null) should work. Consider altering GetNamesAndTypesAndValues() as follows:

public void GetNamesAndTypesAndValues()
{
  foreach (PropertyInfo propertyInfo in allClassProperties)
  {
    Console.WriteLine("{0} [type = {1}] [value = {2}]",
      propertyInfo.Name,
      propertyInfo.PropertyType,
      propertyInfo.GetValue(this, null));
  }
}