Programs & Examples On #Bufferedstream

May this one help a little more

Let suppose if you want to make the bar button in a separate file(for modular approach) and want to give selector back to your viewcontroller, you can do like this :-

your Utility File

class GeneralUtility {

    class func customeNavigationBar(viewController: UIViewController,title:String){
        let add = UIBarButtonItem(title: "Play", style: .plain, target: viewController, action: #selector(SuperViewController.buttonClicked(sender:)));  
      viewController.navigationController?.navigationBar.topItem?.rightBarButtonItems = [add];
    }
}

Then make a SuperviewController class and define the same function on it.

class SuperViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
            // Do any additional setup after loading the view.
    }
    @objc func buttonClicked(sender: UIBarButtonItem) {

    }
}

and In our base viewController(which inherit your SuperviewController class) override the same function

import UIKit

class HomeViewController: SuperViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

    override func viewWillAppear(_ animated: Bool) {
        GeneralUtility.customeNavigationBar(viewController: self,title:"Event");
    }

    @objc override func buttonClicked(sender: UIBarButtonItem) {
      print("button clicked")    
    } 
}

Now just inherit the SuperViewController in whichever class you want this barbutton.

Thanks for the read

Telerik JustDecompile is free and has a feature to create projects from .NET assemblies.

How about the Omondo Plugin for Eclipse. I have used it and I find it to be quite useful. Although if you are generating diagrams for large sources, you might have to start Eclipse with more memory.

Use the logging built-in library module instead of printing.

You create a Logger object (say logger), and then after that, whenever you insert a debug print, you just put:

logger.debug("Some string")

You can use logger.setLevel at the start of the program to set the output level. If you set it to DEBUG, it will print all the debugs. Set it to INFO or higher and immediately all of the debugs will disappear.

You can also use it to log more serious things, at different levels (INFO, WARNING and ERROR).

You can use browser default prompt window. Instead of basic <input type="submit" (...) > try:

<button onClick="if(confirm(\'are you sure ?\')){ this.form.submit() }">Save</button>

Here's a method I wrote to check if an URL exists or not. I had a requirement to add a request header. It's Groovy but should be fairly simple to adapt to Java. Essentially I'm using the org.springframework.web.client.RestTemplate#execute(java.lang.String, org.springframework.http.HttpMethod, org.springframework.web.client.RequestCallback, org.springframework.web.client.ResponseExtractor<T>, java.lang.Object...) API method. I guess the solution you arrive at depends at least in part on the HTTP method you want to execute. The key take away from example below is that I'm passing a Groovy closure (The third parameter to method restTemplate.execute(), which is more or less, loosely speaking a Lambda in Java world) that is executed by the Spring API as a callback to be able to manipulate the request object before Spring executes the command,

boolean isUrlExists(String url) {
    try {
      return (restTemplate.execute(url, HttpMethod.HEAD,
              { ClientHttpRequest request -> request.headers.add('header-name', 'header-value') },
              { ClientHttpResponse response -> response.headers }) as HttpHeaders)?.get('some-response-header-name')?.contains('some-response-header-value')
    } catch (Exception e) {
      log.warn("Problem checking if $url exists", e)
    }
    false
  }

Avoid multipart forms in Richfaces:

<h:form enctype="multipart/form-data">
    <a4j:poll id="poll" interval="10000"/>
</h:form>

If you are using Richfaces, i have found that ajax requests inside of multipart forms return a new View ID on each request.

How to debug:

On each ajax request a View ID is returned, that is fine as long as the View ID is always the same. If you get a new View ID on each request, then there is a problem and must be fixed.

I got the same error for Docker version 19.03.12 and Windows 10. Resolved it by going through the below steps. Hope it helps others.

1. Go to Windows Start -> Search Box (Type here to search). There enter 'Services'. Among the listed items, click Services app.
2. Now search 'Docker Desktop Service' in the Services window opened. Right click on it and Start the service. Its status should be changed to 'Running'.
3. If step 2 gives error like 'the dependency service failed to start', then start all dependency services. For me, I had to start a service called 'Server'.
4. Double click 'Docker Desktop' icon in desktop. Now you will see 'Docker Desktop is running' in system tray.
5. Now run the command 'docker version' from Command Prompt or PowerShell. It should give clean output.
6. If any issue in step 5, run Command Prompt or PowerShell as administrator.

Above resolution assumes Docker is already installed and Hyper-V / Virtualization is enabled in your system.

There are multiple way to comment in a JSP file.

1.  <%-- comment --%>

A JSP comment. Ignored by the JSP engine. Not visible in client machine (Browser source code).

2.  <!-- comment -->

An HTML comment. Ignored by the browser. It is visible in client machine (Browser source code) as a comment.

3. <% my code //my comment %>

Java Single line comment. Ignored by the Compiler. Not visible in client machine (Browser source code).

4.   <% my code /**
         my comment  **/  
       %>

Java Multi line comment. Ignored by the compiler. Not visible in client machine (Browser source code).

But one should use only comment type 1 and 2 because java documentation suggested. these two comment types (1 & 2) are designed for JSP.

If you want run formula on worksheet by function that execute SQL statement then use Add-in A-Tools

Example, function BS_SQL("SELECT ..."):

Using <meta http-equiv="X-UA-Compatible" content="IE=9">, IE9+ does support addEventListener by removing the "on" in the event name, like this:

 var btn1 = document.getElementById('btn1');
 btn1.addEventListener('mousedown', function() {
   console.log('mousedown');
 });

on the BlueStacks emulator worked for me the following solution

Go to ”Settings” -> “Applications” -> “Manage Applications” and select “All”

Go to “Google Play Services Framework” and select “Clear Data” & “Clear Cache” to remove all the data.

Go to “Google Play Store” and Select “Clear Data” & “Clear Cache” to remove all the data regarding Google Play Store.

Go to “Settings” -> “Accounts” -> “Google” -> Select “Your Account”

Go to “Menu” and Select “Remove Account”.

Now “Restart” your mobile device.

Go to “Menu” and “Add Your Account”.

and try to perform update or download.

You do not need to use an anonymous function with setTimeout. You can do something like this:

setTimeout(doSomething, 3000);

function doSomething() {
   //do whatever you want here
}

Have a wrapper around your program that does the following.

import sys

req_version = (2,5)
cur_version = sys.version_info

if cur_version >= req_version:
   import myApp
   myApp.run()
else:
   print "Your Python interpreter is too old. Please consider upgrading."

You can also consider using sys.version(), if you plan to encounter people who are using pre-2.0 Python interpreters, but then you have some regular expressions to do.

And there might be more elegant ways to do this.

Use this :

DECLARE @Table_Name VARCHAR(100) 
DECLARE @Column_Name VARCHAR(100)
SET @Table_Name = ''
SET @Column_Name = ''

SELECT  RowNumber = ROW_NUMBER() OVER ( PARTITION BY T.[Name] ORDER BY T.[Name], C.column_id ) ,
    SCHEMA_NAME(T.schema_id) AS SchemaName ,
    T.[Name] AS Table_Name ,
    C.[Name] AS Field_Name ,
    sysType.name ,
    C.max_length ,
    C.is_nullable ,
    C.is_identity ,
    C.scale ,
    C.precision
FROM    Sys.Tables AS T
    LEFT JOIN Sys.Columns AS C ON ( T.[Object_Id] = C.[Object_Id] )
    LEFT JOIN sys.types AS sysType ON ( C.user_type_id = sysType.user_type_id )
WHERE   ( Type = 'U' )
    AND ( C.Name LIKE '%' + @Column_Name + '%' )
    AND ( T.Name LIKE '%' + @Table_Name + '%' )
ORDER BY T.[Name] ,
    C.column_id

How to Bold entire row 10 example:

workSheet.Cells[10, 1].EntireRow.Font.Bold = true;    

More formally:

Microsoft.Office.Interop.Excel.Range rng = workSheet.Cells[10, 1] as Xl.Range;
rng.EntireRow.Font.Bold = true;

How to Bold Specific Cell 'A10' for example:

workSheet.Cells[10, 1].Font.Bold = true;

Little more formal:

int row = 1;
int column = 1;  /// 1 = 'A' in Excel

Microsoft.Office.Interop.Excel.Range rng = workSheet.Cells[row, column] as Xl.Range;
rng.Font.Bold = true;

Private Sub DownloadFile(relativeUrl As String, destinationPath As String, name As String)
    Try
        destinationPath = Replace(destinationPath + "\" + name, "\\", "\")
        Dim fi As FileInformation = Microsoft.SharePoint.Client.File.OpenBinaryDirect(Me.context, relativeUrl)
        Dim down As Stream = System.IO.File.Create(destinationPath)
        Dim a As Integer = fi.Stream.ReadByte()
        While a <> -1
            down.WriteByte(CType(a, Byte))
            a = fi.Stream.ReadByte()
        End While
    Catch ex As Exception
        ToLog(Type.ERROR, ex.Message)
    End Try
End Sub

The call stack is implemented by the x86 instruction set and the operating system.

Instructions like push and pop adjust the stack pointer while the operating system takes care of allocating memory as the stack grows for each thread.

The fact that the x86 stack "grows down" from higher to lower addresses make this architecture more susceptible to the buffer overflow attack.

Please have a look at this matplotlib example page. There it is shown how to get the following plot with four individual colorbars for each subplot:

I hope this helps.
You can further have a look here, where you can find a lot of what you can do with matplotlib.

Data Coercion does not necessarily mean weakly typed because sometimes its syntacical sugar:

The example above of Java being weakly typed because of

String s = "abc" + 123;

Is not weakly typed example because its really doing:

String s = "abc" + new Integer(123).toString()

Data coercion is also not weakly typed if you are constructing a new object. Java is a very bad example of weakly typed (and any language that has good reflection will most likely not be weakly typed). Because the runtime of the language always knows what the type is (the exception might be native types).

This is unlike C. C is the one of the best examples of weakly typed. The runtime has no idea if 4 bytes is an integer, a struct, a pointer or a 4 characters.

The runtime of the language really defines whether or not its weakly typed otherwise its really just opinion.

EDIT: After further thought this is not necessarily true as the runtime does not have to have all the types reified in the runtime system to be a Strongly Typed system. Haskell and ML have such complete static analysis that they can potential ommit type information from the runtime.

In my case I was getting this error running my app in wildfly with the .ear deployed from eclipse. Because it was deployed from eclipse, the deployment folder did not contain an .ear file, but a folder representing it, and inside of it all the jars that would have been contained in the .ear file; like if the ear was unzipped.

So I had in on jar:

class MySuperClass {
  protected void mySuperMethod {}
}

And in another jar:

class MyExtendingClass extends MySuperClass {

  class MyChildrenClass {
    public void doSomething{
      mySuperMethod();
    }
  }
}

The solution for this was adding a new method to MyExtendingClass:

class MyExtendingClass extends MySuperClass {

  class MyChildrenClass {
    public void doSomething{
      mySuperMethod();
    }
  }

  @Override
  protected void mySuperMethod() {
    super.mySuperMethod();
  }
}

this is the only thing that actually finally worked for me:

#include "Shlwapi.h"

CString some_string = "c:\\path\\hello.txt";
LPCSTR file_path = some_string.GetString();
LPCSTR filepart_c = PathFindFileName(file_path);
LPSTR filepart = LPSTR(filepart_c);
PathRemoveExtension(filepart);

pretty much what Skrymsli suggested but doesn't work with wchar_t*, VS Enterprise 2015

_splitpath worked as well, but I don't like having to guess at how many char[?] characters I'm going to need; some people probably need this control, i guess.

CString c_model_name = "c:\\path\\hello.txt";
char drive[200];
char dir[200];
char name[200];
char ext[200];
_splitpath(c_model_name, drive, dir, name, ext);

I don't believe any includes were needed for _splitpath. No external libraries (like boost) were needed for either of these solutions.

Well /etc/crontab just an ascii file so the simplest is to just

 echo "*/15 * * * *   root     date" >> /etc/crontab

which will add a job which will email you every 15 mins. Adjust to taste, and test via grep or other means whether the line was already added to make your script idempotent.

On Ubuntu et al, you can also drop files in /etc/cron.* which is easier to do and test for---plus you don't mess with (system) config files such as /etc/crontab.

Helper function to copy rows shamelessly adapted from here

import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.util.CellRangeAddress;

import java.io.FileInputStream;
import java.io.FileOutputStream;

public class RowCopy {

    public static void main(String[] args) throws Exception{
        HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream("c:/input.xls"));
        HSSFSheet sheet = workbook.getSheet("Sheet1");
        copyRow(workbook, sheet, 0, 1);
        FileOutputStream out = new FileOutputStream("c:/output.xls");
        workbook.write(out);
        out.close();
    }

    private static void copyRow(HSSFWorkbook workbook, HSSFSheet worksheet, int sourceRowNum, int destinationRowNum) {
        // Get the source / new row
        HSSFRow newRow = worksheet.getRow(destinationRowNum);
        HSSFRow sourceRow = worksheet.getRow(sourceRowNum);

        // If the row exist in destination, push down all rows by 1 else create a new row
        if (newRow != null) {
            worksheet.shiftRows(destinationRowNum, worksheet.getLastRowNum(), 1);
        } else {
            newRow = worksheet.createRow(destinationRowNum);
        }

        // Loop through source columns to add to new row
        for (int i = 0; i < sourceRow.getLastCellNum(); i++) {
            // Grab a copy of the old/new cell
            HSSFCell oldCell = sourceRow.getCell(i);
            HSSFCell newCell = newRow.createCell(i);

            // If the old cell is null jump to next cell
            if (oldCell == null) {
                newCell = null;
                continue;
            }

            // Copy style from old cell and apply to new cell
            HSSFCellStyle newCellStyle = workbook.createCellStyle();
            newCellStyle.cloneStyleFrom(oldCell.getCellStyle());
            ;
            newCell.setCellStyle(newCellStyle);

            // If there is a cell comment, copy
            if (oldCell.getCellComment() != null) {
                newCell.setCellComment(oldCell.getCellComment());
            }

            // If there is a cell hyperlink, copy
            if (oldCell.getHyperlink() != null) {
                newCell.setHyperlink(oldCell.getHyperlink());
            }

            // Set the cell data type
            newCell.setCellType(oldCell.getCellType());

            // Set the cell data value
            switch (oldCell.getCellType()) {
                case Cell.CELL_TYPE_BLANK:
                    newCell.setCellValue(oldCell.getStringCellValue());
                    break;
                case Cell.CELL_TYPE_BOOLEAN:
                    newCell.setCellValue(oldCell.getBooleanCellValue());
                    break;
                case Cell.CELL_TYPE_ERROR:
                    newCell.setCellErrorValue(oldCell.getErrorCellValue());
                    break;
                case Cell.CELL_TYPE_FORMULA:
                    newCell.setCellFormula(oldCell.getCellFormula());
                    break;
                case Cell.CELL_TYPE_NUMERIC:
                    newCell.setCellValue(oldCell.getNumericCellValue());
                    break;
                case Cell.CELL_TYPE_STRING:
                    newCell.setCellValue(oldCell.getRichStringCellValue());
                    break;
            }
        }

        // If there are are any merged regions in the source row, copy to new row
        for (int i = 0; i < worksheet.getNumMergedRegions(); i++) {
            CellRangeAddress cellRangeAddress = worksheet.getMergedRegion(i);
            if (cellRangeAddress.getFirstRow() == sourceRow.getRowNum()) {
                CellRangeAddress newCellRangeAddress = new CellRangeAddress(newRow.getRowNum(),
                        (newRow.getRowNum() +
                                (cellRangeAddress.getLastRow() - cellRangeAddress.getFirstRow()
                                        )),
                        cellRangeAddress.getFirstColumn(),
                        cellRangeAddress.getLastColumn());
                worksheet.addMergedRegion(newCellRangeAddress);
            }
        }
    }
}

i just create MapActivity and inflate it to fragment . MapActivity.java:

package com.example.ahmedsamra.mansouratourguideapp;

import android.support.v4.app.FragmentActivity;
import android.os.Bundle;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_categories);//layout for container
        getSupportFragmentManager().beginTransaction()
                .replace(R.id.container, new MapFragment())
                .commit();
        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }


    /**
     * Manipulates the map once available.
     * This callback is triggered when the map is ready to be used.
     * This is where we can add markers or lines, add listeners or move the camera. In this case,
     * we just add a marker near Sydney, Australia.
     * If Google Play services is not installed on the device, the user will be prompted to install
     * it inside the SupportMapFragment. This method will only be triggered once the user has
     * installed Google Play services and returned to the app.
     */
    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        // Add a marker in Sydney and move the camera
        LatLng mansoura = new LatLng(31.037933, 31.381523);
        mMap.addMarker(new MarkerOptions().position(mansoura).title("Marker in mansoura"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(mansoura));
    }
}

activity_map.xml:

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:map="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.ahmedsamra.mansouratourguideapp.MapsActivity" />

MapFragment.java:-

package com.example.ahmedsamra.mansouratourguideapp;


import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

/**
 * A simple {@link Fragment} subclass.
 */
public class MapFragment extends Fragment {


    public MapFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.activity_maps,container,false);
        return rootView;
    }

}

If you're programming in OpenGL, use GLUT. The following page should help: http://www.lighthouse3d.com/opengl/glut/index.php?5

GLUT_KEY_LEFT   Left function key
GLUT_KEY_RIGHT  Right function key
GLUT_KEY_UP     Up function key
GLUT_KEY_DOWN   Down function key

void processSpecialKeys(int key, int x, int y) {

switch(key) {
    case GLUT_KEY_F1 : 
            red = 1.0; 
            green = 0.0; 
            blue = 0.0; break;
    case GLUT_KEY_F2 : 
            red = 0.0; 
            green = 1.0; 
            blue = 0.0; break;
    case GLUT_KEY_F3 : 
            red = 0.0; 
            green = 0.0; 
            blue = 1.0; break;
}
}

It's working for me with little twist. In my case I have to populate value from POPUP JS to PARENT WINDOW form.

So I have used $('#ee_id',window.opener.document).val(eeID);

Excellent!!!

You have to add Imports System.Runtime.InteropServices to the top of your source file.

Alternatively, you can fully qualify attribute name:

<System.Runtime.InteropService.DllImport("user32.dll", _
    SetLastError:=True, CharSet:=CharSet.Auto)> _

I had a similar problem. Issue I was having was $(pwd) has a space in there which was throwing docker run off.

Change the directory name to not have spaces in there, and it should work if this is the problem

You could take any of the answers above that use the string.length method and replace it with string.size.

They both work the same way.

if string.size <= 25
  puts "No problem here!"
else
  puts "Sorry too long!"
end

https://ruby-doc.org/core-2.4.0/String.html#method-i-size

Adding strings concatenates them:

> "1" + "1"
"11"

You have to parse them into numbers first:

/* parseFloat is used here. 
 * Because of it's not known that 
 * whether the number has fractional places.
 */

var a = parseFloat($('#a').val()),
    b = parseFloat($('#b').val());

Also, you have to get the values from inside of the click handler:

$("submit").on("click", function() {
   var a = parseInt($('#a').val(), 10),
       b = parseInt($('#b').val(), 10);
});

Otherwise, you're using the values of the textboxes from when the page loads.

<Button
     android:id="@+id/groups_button_bg"
     android:layout_height="wrap_content"
     android:layout_width="wrap_content"
     android:text="Groups"
     android:drawableTop="@drawable/[image]" />


android:drawableLeft
android:drawableRight
android:drawableBottom
android:drawableTop

http://www.mokasocial.com/2010/04/create-a-button-with-an-image-and-text-android/

http://developer.android.com/reference/android/location/Location.html

Look into distanceTo

Returns the approximate distance in meters between this location and the given location. Distance is defined using the WGS84 ellipsoid.

or distanceBetween

Computes the approximate distance in meters between two locations, and optionally the initial and final bearings of the shortest path between them. Distance and bearing are defined using the WGS84 ellipsoid.

You can create a Location object from a latitude and longitude:

Location locationA = new Location("point A");

locationA.setLatitude(latA);
locationA.setLongitude(lngA);

Location locationB = new Location("point B");

locationB.setLatitude(latB);
locationB.setLongitude(lngB);

float distance = locationA.distanceTo(locationB);

or

private double meterDistanceBetweenPoints(float lat_a, float lng_a, float lat_b, float lng_b) {
    float pk = (float) (180.f/Math.PI);

    float a1 = lat_a / pk;
    float a2 = lng_a / pk;
    float b1 = lat_b / pk;
    float b2 = lng_b / pk;

    double t1 = Math.cos(a1) * Math.cos(a2) * Math.cos(b1) * Math.cos(b2);
    double t2 = Math.cos(a1) * Math.sin(a2) * Math.cos(b1) * Math.sin(b2);
    double t3 = Math.sin(a1) * Math.sin(b1);
    double tt = Math.acos(t1 + t2 + t3);
   
    return 6366000 * tt;
}

Yes, they are the same. It's one of the many historical quirks in the browser JS API. Try doing:

window.location === document.location

You can also use the by() function:

x2 <- by(x$Frequency, x$Category, sum)
do.call(rbind,as.list(x2))

Those other packages (plyr, reshape) have the benefit of returning a data.frame, but it's worth being familiar with by() since it's a base function.

in case you want to truncate by word.

function limit(str, limit, end) {_x000D_
_x000D_
      limit = (limit)? limit : 100;_x000D_
      end = (end)? end : '...';_x000D_
      str = str.split(' ');_x000D_
      _x000D_
      if (str.length > limit) {_x000D_
        var cutTolimit = str.slice(0, limit);_x000D_
        return cutTolimit.join(' ') + ' ' + end;_x000D_
      }_x000D_
_x000D_
      return str.join(' ');_x000D_
    }_x000D_
_x000D_
    var limit = limit('ILorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus metus magna, maximus a dictum et, hendrerit ac ligula. Vestibulum massa sapien, venenatis et massa vel, commodo elementum turpis. Nullam cursus, enim in semper luctus, odio turpis dictum lectus', 20);_x000D_
_x000D_
    console.log(limit);

You can marshal it to a StringWriter and grab its string. from toString().

Just do it in the Base, that way any child can be Serialized, less code cleaner code.

public abstract class XmlBaseClass  
{
  public virtual string Serialize()
  {
    this.SerializeValidation();

    XmlSerializerNamespaces XmlNamespaces = new XmlSerializerNamespaces(new[] { XmlQualifiedName.Empty });
    XmlWriterSettings XmlSettings = new XmlWriterSettings
    {
      Indent = true,
      OmitXmlDeclaration = true
    };

    StringWriter StringWriter = new StringWriter();

    XmlSerializer Serializer = new XmlSerializer(this.GetType());
    XmlWriter XmlWriter = XmlWriter.Create(StringWriter, XmlSettings);
    Serializer.Serialize(XmlWriter, this, XmlNamespaces);
    StringWriter.Flush();
    StringWriter.Close();

    return StringWriter.ToString();

  }

  protected virtual void SerializeValidation() {}
}

[XmlRoot(ElementName = "MyRoot", Namespace = "MyNamespace")]
public class XmlChildClass : XmlBaseClass
{
  protected override void SerializeValidation()
  {
    //Add custom validation logic here or anything else you need to do
  }
}

This way you can call Serialize on the child class no matter the circumstance and still be able to do what you need to before object Serializes.

intersect_all <- function(a,b,...){
  all_data <- c(a,b,...)
  require(plyr)
  count_data<- length(list(a,b,...))
  freq_dist <- count(all_data)
  intersect_data <- freq_dist[which(freq_dist$freq==count_data),"x"]
  intersect_data
}


intersect_all(a,b,c)

UPDATE EDIT A simpler code

intersect_all <- function(a,b,...){
  Reduce(intersect, list(a,b,...))
}

intersect_all(a,b,c)

Use this :

private string GetAlbumRSS(SyndicationItem album)
    {

        string url = "";
        foreach (SyndicationElementExtension ext in album.ElementExtensions)
            if (ext.OuterName == "itemRSS") url = ext.GetObject<string>();
        return (url);

    }
    protected void Page_Load(object sender, EventArgs e)
    {
        string albumRSS;
        string url = "http://www.SomeSite.com/rss?";
        XmlReader r = XmlReader.Create(url);
        SyndicationFeed albums = SyndicationFeed.Load(r);
        r.Close();
        foreach (SyndicationItem album in albums.Items)
        {

            cell.InnerHtml = cell.InnerHtml +string.Format("<br \'><a href='{0}'>{1}</a>", album.Links[0].Uri, album.Title.Text);
            albumRSS = GetAlbumRSS(album);

        }



    }

There's no problem with what you've done, but you must remember the difference between function declarations and function expressions.

A function declaration, that is:

function doSomething () {}

Is hoisted entirely to the top of the scope (and like let and const they are block scoped as well).

This means that the following will work:

doSomething() // works!
function doSomething() {}

A function expression, that is:

[const | let | var] = function () {} (or () =>

Is the creation of an anonymous function (function () {}) and the creation of a variable, and then the assignment of that anonymous function to that variable.

So the usual rules around variable hoisting within a scope -- block-scoped variables (let and const) do not hoist as undefined to the top of their block scope.

This means:

if (true) {
    doSomething() // will fail
    const doSomething = function () {}
}

Will fail since doSomething is not defined. (It will throw a ReferenceError)

If you switch to using var you get your hoisting of the variable, but it will be initialized to undefined so that block of code above will still not work. (This will throw a TypeError since doSomething is not a function at the time you call it)

As far as standard practices go, you should always use the proper tool for the job.

Axel Rauschmayer has a great post on scope and hoisting including es6 semantics: Variables and Scoping in ES6

This is just a warning and it doesn't make problem for your project to run, you can just ignore it and continue coding. But if you're obsessed about clean coding, same as me, you have two options:

1. Hover the mouse on warning in VS Code or any IDE and use quick fix to remove white spaces.
2. Press f1 then type trim trailing whitespace.

In your private npm modules add

"private": true 

to your package.json

Then to reference the private module in another module, use this in your package.json

{
    "name": "myapp",
    "dependencies": {
        "private-repo": "git+ssh://[email protected]:myaccount/myprivate.git#v1.0.0",
    }
}

http://jsfiddle.net/v8aWF/

Worked out a fiddle. Do check it out

(function() {
    var oJson = {
        "name": "", 
        "skills": "", 
        "jobtitle": "Entwickler", 
        "res_linkedin": "GwebSearch"
    }
    alert(oJson.jobtitle);
})();

I found that while adding

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
  extended: true
}));

helps, sometimes it's a matter of your querying that determines how express handles it.

For instance, it could be that your parameters are passed in the URL rather than in the body

In such a case, you need to capture both the body and url parameters and use whichever is available (with preference for the body parameters in the case below)

app.route('/echo')
    .all((req,res)=>{
        let pars = (Object.keys(req.body).length > 0)?req.body:req.query;
        res.send(pars);
    });

NSArray *array = [mutableArray copy];

Copy makes immutable copies. This is quite useful because Apple can make various optimizations. For example sending copy to a immutable array only retains the object and returns self.

If you don't use garbage collection or ARC remember that -copy retains the object.

If you're running a recent-ish version of pandas then you can use the datetime attribute dt to access the datetime components:

In [6]:

df['date'] = pd.to_datetime(df['date'])
df['year'], df['month'] = df['date'].dt.year, df['date'].dt.month
df
Out[6]:
        date  Count  year  month
0 2010-06-30    525  2010      6
1 2010-07-30    136  2010      7
2 2010-08-31    125  2010      8
3 2010-09-30     84  2010      9
4 2010-10-29   4469  2010     10

EDIT

It looks like you're running an older version of pandas in which case the following would work:

In [18]:

df['date'] = pd.to_datetime(df['date'])
df['year'], df['month'] = df['date'].apply(lambda x: x.year), df['date'].apply(lambda x: x.month)
df
Out[18]:
        date  Count  year  month
0 2010-06-30    525  2010      6
1 2010-07-30    136  2010      7
2 2010-08-31    125  2010      8
3 2010-09-30     84  2010      9
4 2010-10-29   4469  2010     10

Regarding why it didn't parse this into a datetime in read_csv you need to pass the ordinal position of your column ([0]) because when True it tries to parse columns [1,2,3] see the docs

In [20]:

t="""date   Count
6/30/2010   525
7/30/2010   136
8/31/2010   125
9/30/2010   84
10/29/2010  4469"""
df = pd.read_csv(io.StringIO(t), sep='\s+', parse_dates=[0])
df.info()
<class 'pandas.core.frame.DataFrame'>
Int64Index: 5 entries, 0 to 4
Data columns (total 2 columns):
date     5 non-null datetime64[ns]
Count    5 non-null int64
dtypes: datetime64[ns](1), int64(1)
memory usage: 120.0 bytes

So if you pass param parse_dates=[0] to read_csv there shouldn't be any need to call to_datetime on the 'date' column after loading.

I was trying to solve the same problem, but found an interesting advice by Basarat Ali Syed, of TypeScript Deep Dive fame, that we should avoid the generic export default declaration for a class, and instead append the export tag to the class declaration. The imported class should be instead listed in the import command of the module.

That is: instead of

class Foo {
    // ...
}
export default Foo;

and the simple import Foo from './foo'; in the module that will import, one should use

export class Foo {
    // ...
}

and import {Foo} from './foo' in the importer.

The reason for that is difficulties in the refactoring of classes, and the added work for exportation. The original post by Basarat is in export default can lead to problems

If you can give up the scales/axis labels, you can rescale the data to (0, 1) interval. This works for example for different 'wiggle' trakcs on chromosomes, when you're generally interested in local correlations between the tracks and they have different scales (coverage in thousands, Fst 0-1).

# rescale numeric vector into (0, 1) interval
# clip everything outside the range 
rescale <- function(vec, lims=range(vec), clip=c(0, 1)) {
  # find the coeficients of transforming linear equation
  # that maps the lims range to (0, 1)
  slope <- (1 - 0) / (lims[2] - lims[1])
  intercept <- - slope * lims[1]

  xformed <- slope * vec + intercept

  # do the clipping
  xformed[xformed < 0] <- clip[1]
  xformed[xformed > 1] <- clip[2]

  xformed
}

Then, having a data frame with chrom, position, coverage and fst columns, you can do something like:

ggplot(d, aes(position)) + 
  geom_line(aes(y = rescale(fst))) + 
  geom_line(aes(y = rescale(coverage))) +
  facet_wrap(~chrom)

The advantage of this is that you're not limited to two trakcs.

You may store the parameters for the blob detector in a file, but this is not necessary. Example:

// set up the parameters (check the defaults in opencv's code in blobdetector.cpp)
cv::SimpleBlobDetector::Params params;
params.minDistBetweenBlobs = 50.0f;
params.filterByInertia = false;
params.filterByConvexity = false;
params.filterByColor = false;
params.filterByCircularity = false;
params.filterByArea = true;
params.minArea = 20.0f;
params.maxArea = 500.0f;
// ... any other params you don't want default value

// set up and create the detector using the parameters
cv::SimpleBlobDetector blob_detector(params);
// or cv::Ptr<cv::SimpleBlobDetector> detector = cv::SimpleBlobDetector::create(params)

// detect!
vector<cv::KeyPoint> keypoints;
blob_detector.detect(image, keypoints);

// extract the x y coordinates of the keypoints: 

for (int i=0; i<keypoints.size(); i++){
    float X = keypoints[i].pt.x; 
    float Y = keypoints[i].pt.y;
}

I reworked Doug Glancy's solution to avoid rows deletion, which can lead to #Ref issue in formulae.

Sub ListReset(lst As ListObject)
'clears a listObject while leaving row 1 empty, with formulae
    With lst
        If .ShowAutoFilter Then .AutoFilter.ShowAllData
        On Error Resume Next
        With .DataBodyRange
            .Offset(1).Rows.Clear
            .Rows(1).SpecialCells(xlCellTypeConstants).ClearContents
        End With
        On Error GoTo 0
        .Resize .Range.Rows("1:2")
    End With
End Sub

Using netbeans New Entity Classes from Database with a mysql auto_increment column, creates you an attribute with the following hibernate.hbm.xml: id is auto increment

i did try this and its working in windows machine to run a sql file on a specific schema.

psql -h localhost -p 5432 -U username -d databasename -v schema=schemaname < e:\Table.sql

Using dplyr and tidyr:

library(dplyr)
library(tidyr)

df <- as_data_frame(mat) %>%      # convert the matrix to a data frame
  gather(name, val, C_0:C_1) %>%  # convert the data frame from wide to long
  select(name, time, val)         # reorder the columns

df
# A tibble: 6 x 3
   name  time   val
  <chr> <dbl> <dbl>
1   C_0   0.0   0.1
2   C_0   0.5   0.2
3   C_0   1.0   0.3
4   C_1   0.0   0.3
5   C_1   0.5   0.4
6   C_1   1.0   0.5

My answer is a mod of some prior answers from @JoeMills and @user.

1. Get a cURL command to log into server:

   • Load login page for website and open Network pane of Developer Tools
     • In firefox, right click page, choose 'Inspect Element (Q)' and click on Network tab
   • Go to login form, enter username, password and log in
   • After you have logged in, go back to Network pane and scroll to the top to find the POST entry. Right click and choose Copy -> Copy as CURL
   • Paste this to a text editor and try this in command prompt to see if it works
     • Its possible that some sites have hardening that will block this type of login spoofing that would require more steps below to bypass.

2. Modify cURL command to be able to save session cookie after login

   • Remove the entry -H 'Cookie: <somestuff>'
   • Add after curl at beginning -c login_cookie.txt
   • Try running this updated curl command and you should get a new file 'login_cookie.txt' in the same folder

3. Call a new web page using this new cookie that requires you to be logged in

   • curl -b login_cookie.txt <url_that_requires_log_in>

I have tried this on Ubuntu 20.04 and it works like a charm.

Revisiting this page and I have more information to share with others.

Debugging environment (using Visual Studio)

1a) Stephen Walter's link to set the startup page on MVC using the project properties is only applicable when you are debugging your MVC application.

1b) Right mouse click on the .aspx page in Solution Explorer and select the "Set As Start Page" behaves the same.

Note: in both the above cases, the startup page setting is only recognised by your Visual Studio Development Server. It is not recognised by your deployed server.

Deployed environment

2a) To set the startup page, assuming that you have not change any of the default routings, change the content of /Views/Home/Index.aspx to do a "Server.Transfer" or a "Response.Redirect" to your desired page.

2b) Change your default routing in your global.asax.cs to your desired page.

Are there any other options that the readers are aware of? Which of the above (including your own option) would be your preferred solution (and please share with us why)?

If you want an empty string default then a preferred way is one of these (depending on your need):

$str_value = strval($_GET['something']);
$trimmed_value = trim($_GET['something']);
$int_value = intval($_GET['somenumber']);

If the url parameter something doesn't exist in the url then $_GET['something'] will return null

strval($_GET['something']) -> strval(null) -> ""

and your variable $value is set to an empty string.

• trim() might be prefered over strval() depending on code (e.g. a Name parameter might want to use it)
• intval() if only numeric values are expected and the default is zero. intval(null) -> 0

Cases to consider:

...&something=value1&key2=value2 (typical)

...&key2=value2 (parameter missing from url $_GET will return null for it)

...&something=+++&key2=value (parameter is " ")

Why this is a preferred approach:

• It fits neatly on one line and is clear what's going on.
• It's readable than $value = isset($_GET['something']) ? $_GET['something'] : '';
• Lower risk of copy/paste mistake or a typo: $value=isset($_GET['something'])?$_GET['somthing']:'';
• It's compatible with older and newer php.

Update Strict mode may require something like this:

$str_value = strval(@$_GET['something']);
$trimmed_value = trim(@$_GET['something']);
$int_value = intval(@$_GET['somenumber']);

It is Possible to add Multiple Get and Post methods in the same Web API Controller. Here default Route is Causing the Issue. Web API checks for Matching Route from Top to Bottom and Hence Your Default Route Matches for all Requests. As per default route only one Get and Post Method is possible in one controller. Either place the following code on top or Comment Out/Delete Default Route

    config.Routes.MapHttpRoute("API Default", 
                               "api/{controller}/{action}/{id}",
                               new { id = RouteParameter.Optional });

You can use:

string regExp = "\\W";

This is equivalent to Daniel's "[^a-zA-Z0-9]"

\W matches any nonword character. Equivalent to the Unicode categories [^\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Nd}\p{Pc}].

You have two ways to do that, both use the Arrays utility class

1. Implement a Comparator and pass your array along with the comparator to the sort method which take it as second parameter.
2. Implement the Comparable interface in the class your objects are from and pass your array to the sort method which takes only one parameter.

Example

class Book implements Comparable<Book> {
    public String name, id, author, publisher;
    public Book(String name, String id, String author, String publisher) {
        this.name = name;
        this.id = id;
        this.author = author;
        this.publisher = publisher;
    }
    public String toString() {
        return ("(" + name + ", " + id + ", " + author + ", " + publisher + ")");
    }
    @Override
    public int compareTo(Book o) {
        // usually toString should not be used,
        // instead one of the attributes or more in a comparator chain
        return toString().compareTo(o.toString());
    }
}

@Test
public void sortBooks() {
    Book[] books = {
            new Book("foo", "1", "author1", "pub1"),
            new Book("bar", "2", "author2", "pub2")
    };

    // 1. sort using Comparable
    Arrays.sort(books);
    System.out.println(Arrays.asList(books));

    // 2. sort using comparator: sort by id
    Arrays.sort(books, new Comparator<Book>() {
        @Override
        public int compare(Book o1, Book o2) {
            return o1.id.compareTo(o2.id);
        }
    });
    System.out.println(Arrays.asList(books));
}

Output

[(bar, 2, author2, pub2), (foo, 1, author1, pub1)]
[(foo, 1, author1, pub1), (bar, 2, author2, pub2)]

If you plan on putting the files on a machine supporting only 8.3 naming convention, you should limit the extension to 3 characters.

Otherwise, better choose the more descriptive .html version.

I believe this is the fastest query that answers your question, because it doesn't use an interpreted $where clause:

{$nor: [
    {name: {$exists: false}},
    {name: {$size: 0}},
    {name: {$size: 1}}
]}

It means "all documents except those without a name (either non existant or empty array) or with just one name."

Test:

> db.test.save({})
> db.test.save({name: []})
> db.test.save({name: ['George']})
> db.test.save({name: ['George', 'Raymond']})
> db.test.save({name: ['George', 'Raymond', 'Richard']})
> db.test.save({name: ['George', 'Raymond', 'Richard', 'Martin']})
> db.test.find({$nor: [{name: {$exists: false}}, {name: {$size: 0}}, {name: {$size: 1}}]})
{ "_id" : ObjectId("511907e3fb13145a3d2e225b"), "name" : [ "George", "Raymond" ] }
{ "_id" : ObjectId("511907e3fb13145a3d2e225c"), "name" : [ "George", "Raymond", "Richard" ] }
{ "_id" : ObjectId("511907e3fb13145a3d2e225d"), "name" : [ "George", "Raymond", "Richard", "Martin" ] }
>

1: Get Timings. Until you know where the slowdown is, the question is too broad to answer. A project I'm working on has this precise problem; There's no logging to even know how long certain things take; we can only guess as to the slow parts of the app until we add timings to the project.

2: If you have sequential operations, Don't be afraid to lightly multithread. ESPECIALLY if blocking operations are involved. PLINQ is your friend here.

3: Pregenerate your MVC Views when Publishing... That will help with some of the 'first page hit'

4: Some argue for the stored procedure/ADO advantages of speed. Others argue for speed of development of EF and a more clear seprataion of tiers and their purpose. I've seen really slow designs when SQL and the workarounds to use Sprocs/Views for data retrieval and storage. Also, your difficulty to test goes up. Our current codebase that we are converting from ADO to EF is not performing any worse (and in some cases better) than the old Hand-Rolled model.

5: That said, Think about application Warmup. Part of what we do to help eliminate most of our EF performance woes was to add a special warmup method. It doesn't precompile any queries or anything, but it helps with much of the metadata loading/generation. This can be even more important when dealing with Code First models.

6: As others have said, Don't use Session state or ViewState if possible. They are not necessarily performance optimizations that developers think about, but once you start writing more complex web applications, you want responsiveness. Session state precludes this. Imagine a long running query. You decide to open a new window and try a less complex one. Well, you may as well have waited with session state on, because the server will wait until the first request is done before moving to the next one for that session.

7: Minimize round trips to the database. Save stuff that you frequently use but will not realistically change to your .Net Cache. Try to batch your inserts/updates where possible.

7.1: Avoid Data Access code in your Razor views without a damn good reason. I wouldn't be saying this if I hadn't seen it. They were already accessing their data when putting the model together, why the hell weren't they including it in the model?

in build.gradle change compiled and build to latest version. and it worked for me.

================

android {
    compileSdkVersion 22
    buildToolsVersion "22"

This is as likely a matter of Eclipse's getting confused as it is an actual error. I ignored the error and ran the web service whose endpointInterface it complained about, and it ran fine, except for having to deal with the dialog every time I wanted to run it. Just another opaque error that tells me nothing.

The primary issue is that underlying hardware, the CPU, only has instructions to compare two signed values or compare two unsigned values. If you pass the unsigned comparison instruction a signed, negative value, it will treat it as a large positive number. So, -1, the bit pattern with all bits on (twos complement), becomes the maximum unsigned value for the same number of bits.

8-bits: -1 signed is the same bits as 255 unsigned 16-bits: -1 signed is the same bits as 65535 unsigned etc.

So, if you have the following code:

int fd;
fd = open( .... );

int cnt;
SomeType buf;

cnt = read( fd, &buf, sizeof(buf) );

if( cnt < sizeof(buf) ) {
    perror("read error");
}

you will find that if the read(2) call fails due to the file descriptor becoming invalid (or some other error), that cnt will be set to -1. When comparing to sizeof(buf), an unsigned value, the if() statement will be false because 0xffffffff is not less than sizeof() some (reasonable, not concocted to be max size) data structure.

Thus, you have to write the above if, to remove the signed/unsigned warning as:

if( cnt < 0 || (size_t)cnt < sizeof(buf) ) {
    perror("read error");
}

This just speaks loudly to the problems.

1.  Introduction of size_t and other datatypes was crafted to mostly work, 
    not engineered, with language changes, to be explicitly robust and 
    fool proof.
2.  Overall, C/C++ data types should just be signed, as Java correctly
    implemented.

If you have values so large that you can't find a signed value type that works, you are using too small of a processor or too large of a magnitude of values in your language of choice. If, like with money, every digit counts, there are systems to use in most languages which provide you infinite digits of precision. C/C++ just doesn't do this well, and you have to be very explicit about everything around types as mentioned in many of the other answers here.

Late reply, but adding that Mongoose also has the concept of Subdocuments

With this syntax, you should be able to reference your userSchema as a type in your postSchema like so:

var userSchema = new Schema({
    twittername: String,
    twitterID: Number,
    displayName: String,
    profilePic: String,
});

var postSchema = new Schema({
    name: String,
    postedBy: userSchema,
    dateCreated: Date,
    comments: [{body:"string", by: mongoose.Schema.Types.ObjectId}],
});

Note the updated postedBy field with type userSchema.

This will embed the user object within the post, saving an extra lookup required by using a reference. Sometimes this could be preferable, other times the ref/populate route might be the way to go. Depends on what your application is doing.

If you are using the uiSref directive then you can do this

uiSref="^"

You can use netstat command

netstat --listen

To display open ports and established TCP connections,

netstat -vatn

To display only open UDP ports try the following command:

netstat -vaun

You have to give the second argument of class type. You can also have it a little bit more tidy like below.

startActivity(Intent(this, Page2::class.java).apply {
    putExtra("extra_1", value1)
    putExtra("extra_2", value2)
    putExtra("extra_3", value3)
})

If you have to log all args or your method have one argument, you can simply use getArgs like described in previous answers.

If you have to log a specific arg, you can annoted it and then recover its value like this :

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.PARAMETER)
public @interface Data {
 String methodName() default "";
}

@Aspect
public class YourAspect {

 @Around("...")
 public Object around(ProceedingJoinPoint point) throws Throwable {
  Method method = MethodSignature.class.cast(point.getSignature()).getMethod();
  Object[] args = point.getArgs();
  StringBuilder data = new StringBuilder();
    Annotation[][] parameterAnnotations = method.getParameterAnnotations();
    for (int argIndex = 0; argIndex < args.length; argIndex++) {
        for (Annotation paramAnnotation : parameterAnnotations[argIndex]) {
            if (!(paramAnnotation instanceof Data)) {
                continue;
            }
            Data dataAnnotation = (Data) paramAnnotation;
            if (dataAnnotation.methodName().length() > 0) {
                Object obj = args[argIndex];
                Method dataMethod = obj.getClass().getMethod(dataAnnotation.methodName());
                data.append(dataMethod.invoke(obj));
                continue;
            }
            data.append(args[argIndex]);
        }
    }
 }
}

Examples of use :

public void doSomething(String someValue, @Data String someData, String otherValue) {
    // Apsect will log value of someData param
}

public void doSomething(String someValue, @Data(methodName = "id") SomeObject someData, String otherValue) {
    // Apsect will log returned value of someData.id() method
}

It would be simpler if you configured it to just run e.g. on monday and thursdays, which would give it a 3 and 4 day break.

Otherwise configure it to run daily, but make your php cron script exit early with:

if (! (date("z") % 3)) {
     exit;
}

Above wait statement is a nice example of Explicit wait.

As Explicit waits are intelligent waits that are confined to a particular web element(as mentioned in above x-path).

By Using explicit waits you are basically telling WebDriver at the max it is to wait for X units(whatever you have given as timeoutInSeconds) of time before it gives up.

If you know the key which you unset then put directly by comma separated

unset($attr['placeholder'], $attr['autocomplete']);

The answer from @KM is good as far as it goes but fails to fully follow up on one of his early bits of advice;

..., ignore compact code, ignore worrying about repeating code, ...

If you are looking to achieve the best performance then you should write a bespoke query for each possible combination of optional criteria. This might sound extreme, and if you have a lot of optional criteria then it might be, but performance is often a trade-off between effort and results. In practice, there might be a common set of parameter combinations that can be targeted with bespoke queries, then a generic query (as per the other answers) for all other combinations.

CREATE PROCEDURE spDoSearch
    @FirstName varchar(25) = null,
    @LastName varchar(25) = null,
    @Title varchar(25) = null
AS
BEGIN

    IF (@FirstName IS NOT NULL AND @LastName IS NULL AND @Title IS NULL)
        -- Search by first name only
        SELECT ID, FirstName, LastName, Title
        FROM tblUsers
        WHERE
            FirstName = @FirstName

    ELSE IF (@FirstName IS NULL AND @LastName IS NOT NULL AND @Title IS NULL)
        -- Search by last name only
        SELECT ID, FirstName, LastName, Title
        FROM tblUsers
        WHERE
            LastName = @LastName

    ELSE IF (@FirstName IS NULL AND @LastName IS NULL AND @Title IS NOT NULL)
        -- Search by title only
        SELECT ID, FirstName, LastName, Title
        FROM tblUsers
        WHERE
            Title = @Title

    ELSE IF (@FirstName IS NOT NULL AND @LastName IS NOT NULL AND @Title IS NULL)
        -- Search by first and last name
        SELECT ID, FirstName, LastName, Title
        FROM tblUsers
        WHERE
            FirstName = @FirstName
            AND LastName = @LastName

    ELSE
        -- Search by any other combination
        SELECT ID, FirstName, LastName, Title
        FROM tblUsers
        WHERE
                (@FirstName IS NULL OR (FirstName = @FirstName))
            AND (@LastName  IS NULL OR (LastName  = @LastName ))
            AND (@Title     IS NULL OR (Title     = @Title    ))

END

The advantage of this approach is that in the common cases handled by bespoke queries the query is as efficient as it can be - there's no impact by the unsupplied criteria. Also, indexes and other performance enhancements can be targeted at specific bespoke queries rather than trying to satisfy all possible situations.

I often need to execute an action on each pair in two collections. The Zip method is not useful in this case.

This extension method ForPair can be used:

public static void ForPair<TFirst, TSecond>(this IEnumerable<TFirst> first, IEnumerable<TSecond> second,
    Action<TFirst, TSecond> action)
{
    using (var enumFirst = first.GetEnumerator())
    using (var enumSecond = second.GetEnumerator())
    {
        while (enumFirst.MoveNext() && enumSecond.MoveNext())
        {
            action(enumFirst.Current, enumSecond.Current);
        }
    }
}

So for example, you could write:

var people = new List<Person> { person1, person2 };
var wages = new List<decimal> { 10, 20 };

people.ForPair(wages, (p, w) => p.Wage = w);

Note however that this method cannot be used to modify the collection itself. This for example will not work:

List<String> listA = new List<string> { "string", "string" };
List<String> listB = new List<string> { "string", "string" };

listA.ForPair(listA, (c1, c2) => c1 = c2);  // Nothing will happen!

So in this case, the example in your own question is probably the best way.

I had the same issue, tried all changing SSL settings that are provided here. If you are in the corporate network and ssh keys used in such tools like Gerrit. 1. Get your ssh key, 2. Visit Bitbucket and navigate to Profile >> Settings >> SSH Keys >> Add Key.

After ssh key addition, try to push again.

This is called Fixed Header Scrolling. There are a number of documented approaches:

http://www.imaputz.com/cssStuff/bigFourVersion.html

You won't effectively pull this off without JavaScript ... especially if you want cross browser support.

There are a number of gotchyas with any approach you take, especially concerning cross browser/version support.

Edit:

Even if it's not the header you want to fix, but the first row of data, the concept is still the same. I wasn't 100% which you were referring to.

Additional thought I was tasked by my company to research a solution for this that could function in IE7+, Firefox, and Chrome.

After many moons of searching, trying, and frustration it really boiled down to a fundamental problem. For the most part, in order to gain the fixed header, you need to implement fixed height/width columns because most solutions involve using two separate tables, one for the header which will float and stay in place over the second table that contains the data.

//float this one right over second table
<table>
  <tr>
    <th>Header 1</th>
    <th>Header 2</th>
  </tr>
</table>

<table>
//Data
</table>

An alternative approach some try is utilize the tbody and thead tags but that is flawed too because IE will not allow you put a scrollbar on the tbody which means you can't limit its height (so stupid IMO).

<table>
  <thead style="do some stuff to fix its position">
  <tr>
    <th>Header 1</th>
    <th>Header 2</th>
  </tr>
  </thead>
  <tbody style="No scrolling allowed here!">
     Data here
  </tbody>
</table>

This approach has many issues such as ensures EXACT pixel widths because tables are so cute in that different browsers will allocate pixels differently based on calculations and you simply CANNOT (AFAIK) guarantee that the distribution will be perfect in all cases. It becomes glaringly obvious if you have borders within your table.

I took a different approach and said screw tables since you can't make this guarantee. I used divs to mimic tables. This also has issues of positioning the rows and columns (mainly because floating has issues, using in-line block won't work for IE7, so it really left me with using absolute positioning to put them in their proper places).

There is someone out there that made the Slick Grid which has a very similar approach to mine and you can use and a good (albeit complex) example for achieving this.

https://github.com/6pac/SlickGrid/wiki

In HTML:

<div ng-repeat="product in products | filter: colorFilter">

In Angular:

$scope.colorFilter = function (item) { 
  if (item.color === 'red' || item.color === 'blue') {
  return item;
 }
};

In my case, heredoc caused the issue. There is no problem with PHP version 7.3 up. Howerver, it error with PHP 7.0.33 if you use heredoc with space.

My example code

$rexpenditure = <<<Expenditure
                  <tr>
                      <td>$row->payment_referencenumber</td>
                      <td>$row->payment_requestdate</td>
                      <td>$row->payment_description</td>
                      <td>$row->payment_fundingsource</td>
                      <td>$row->payment_agencyulo</td>
                      <td>$row->payment_agencyproject</td>
                      <td>$$row->payment_disbustment</td>
                      <td>$row->payment_payeename</td>
                      <td>$row->payment_processpayment</td>
                  </tr>
Expenditure;

It will error if there is a space on PHP 7.0.33.

Html code for adding map

<div id="map" style="height:480px; width:360px;"></div>

css for loading map

.leaflet-div-icon
{
    background-image: url('http://cloudmade.com/images/layout/cm-logo.png');
}

Logic for changing marker colour

var map = L.map('map').setView([51.5, -0.09], 13);
        
L.marker([51.49, -0.09]).addTo(map)
    .bindPopup('Demo CSS3 popup. <br> Easily customizable.');
        
const myCustomColour = '#5f93ed'
        
const markerHtmlStyles = `
    background-color: ${myCustomColour};
    width: 15px;
    height: 15px;
    font-size:15px;
    text-align:center;
    display: block; 
`
        
function thing(ct) {
    return L.divIcon({
        className: "box",
        iconAnchor: [12, 25],
        labelAnchor: [-6, 0],
        popupAnchor: [0, -15],
        html: `<span style="${markerHtmlStyles}" >M</span>`
    })
}
       
L.marker([51.51, -0.09], {
    icon: thing("hello")
}).addTo(map)
    .bindPopup('divIcon CSS3 popup. <br> Supposed to be easily stylable.');

This might also be helpful: http://rush.heroku.com/

I haven't used it much, but looks pretty cool

From the site:

rush is a replacement for the unix shell (bash, zsh, etc) which uses pure Ruby syntax. Grep through files, find and kill processes, copy files - everything you do in the shell, now in Ruby

Use the os module:

import os
os.chdir('..')

should work

I too want to make some shine on abstract surface All answer has covered almost all the things. Still my 2 cents

abstract classes are normal classes with A few exceptions

1. You any client/Consumer of that class can't create object of that class, It never means that It's constructor will never call. Its derived class can choose which constructor to call.(as depicted in some answer)
2. It may has abstract function.

The type char is a primitive -- not an object -- so it cannot be dereferenced

Dereferencing is the process of accessing the value referred to by a reference. Since a char is already a value (not a reference), it can not be dereferenced.

use Character class:

if(Character.isLetter(c)) {

Though it is an old question, it is still a valid one.

Expected behavior:

• Show selected file name after upload.
• Do not do anything if the user clicks Cancel.
• Show the file name even when the user selects the same file.

Code with a demonstration:

<!DOCTYPE html>
<html>

<head>
  <title>File upload event</title>
</head>

<body>
  <form action="" method="POST" enctype="multipart/form-data">
    <input type="file" name="userFile" id="userFile"><br>
    <input type="submit" name="upload_btn" value="upload">
  </form>
  <script type="text/javascript">
    document.getElementById("userFile").onchange = function(e) {
      alert(this.value);
      this.value = null;
    }
  </script>
</body>

</html>

Explanation:

• The onchange event handler is used to handle any change in file selection event.
• The onchange event is triggered only when the value of an element is changed. So, when we select the same file using the input field the event will not be triggered. To overcome this, I set this.value = null; at the end of the onchange event function. It sets the file path of the selected file to null. Thus, the onchange event is triggered even at the time of the same file selection.

Yuzem's method can be improved by inversing the order of the < and > signs in the rdom function and the variable assignments, so that:

rdom () { local IFS=\> ; read -d \< E C ;}

becomes:

rdom () { local IFS=\< ; read -d \> C E ;}

If the parsing is not done like this, the last tag in the XML file is never reached. This can be problematic if you intend to output another XML file at the end of the while loop.

Tele2 provides ftp://speedtest.tele2.net , you can log in as anonymous and upload anything to test your upload speed. For download testing they provide fixed size files, you can choose which fits best to your test.

You can connect with username of anonymous and any password (e.g. anonymous ). You can upload files to upload folder. You can't create new folder here. Your file is deleted immediately after successful upload.

Found here: http://speedtest.tele2.net/

Question

How to get an actual file path from a URI

Answer

To my knowledge, we don't need to get the file path from a URI because for most of the cases we can directly use the URI to get our work done (like 1. getting bitmap 2. Sending a file to the server, etc.)

1. Sending to the server

We can directly send the file to the server using just the URI.

Using the URI we can get InputStream, which we can directly send to the server using MultiPartEntity.

Example

/**
 * Used to form Multi Entity for a URI (URI pointing to some file, which we got from other application).
 *
 * @param uri     URI.
 * @param context Context.
 * @return Multi Part Entity.
 */
public MultipartEntity formMultiPartEntityForUri(final Uri uri, final Context context) {
    MultipartEntity multipartEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE, null, Charset.forName("UTF-8"));
    try {
        InputStream inputStream = mContext.getContentResolver().openInputStream(uri);
        if (inputStream != null) {
            ContentBody contentBody = new InputStreamBody(inputStream, getFileNameFromUri(uri, context));
            multipartEntity.addPart("[YOUR_KEY]", contentBody);
        }
    }
    catch (Exception exp) {
        Log.e("TAG", exp.getMessage());
    }
    return multipartEntity;
}

/**
 * Used to get a file name from a URI.
 *
 * @param uri     URI.
 * @param context Context.
 * @return File name from URI.
 */
public String getFileNameFromUri(final Uri uri, final Context context) {

    String fileName = null;
    if (uri != null) {
        // Get file name.
        // File Scheme.
        if (ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
            File file = new File(uri.getPath());
            fileName = file.getName();
        }
        // Content Scheme.
        else if (ContentResolver.SCHEME_CONTENT.equals(uri.getScheme())) {
            Cursor returnCursor =
                    context.getContentResolver().query(uri, null, null, null, null);
            if (returnCursor != null && returnCursor.moveToFirst()) {
                int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
                fileName = returnCursor.getString(nameIndex);
                returnCursor.close();
            }
        }
    }
    return fileName;
}

2. Getting a BitMap from a URI

If the URI is pointing to image then we will get bitmap, else null:

/**
 * Used to create bitmap for the given URI.
 * <p>
 * 1. Convert the given URI to bitmap.
 * 2. Calculate ratio (depending on bitmap size) on how much we need to subSample the original bitmap.
 * 3. Create bitmap bitmap depending on the ration from URI.
 * 4. Reference - http://stackoverflow.com/questions/3879992/how-to-get-bitmap-from-an-uri
 *
 * @param context       Context.
 * @param uri           URI to the file.
 * @param bitmapSize Bitmap size required in PX.
 * @return Bitmap bitmap created for the given URI.
 * @throws IOException
 */
public static Bitmap createBitmapFromUri(final Context context, Uri uri, final int bitmapSize) throws IOException {

    // 1. Convert the given URI to bitmap.
    InputStream input = context.getContentResolver().openInputStream(uri);
    BitmapFactory.Options onlyBoundsOptions = new BitmapFactory.Options();
    onlyBoundsOptions.inJustDecodeBounds = true;
    onlyBoundsOptions.inDither = true;//optional
    onlyBoundsOptions.inPreferredConfig = Bitmap.Config.ARGB_8888;//optional
    BitmapFactory.decodeStream(input, null, onlyBoundsOptions);
    input.close();
    if ((onlyBoundsOptions.outWidth == -1) || (onlyBoundsOptions.outHeight == -1)) {
        return null;
    }

    // 2. Calculate ratio.
    int originalSize = (onlyBoundsOptions.outHeight > onlyBoundsOptions.outWidth) ? onlyBoundsOptions.outHeight : onlyBoundsOptions.outWidth;
    double ratio = (originalSize > bitmapSize) ? (originalSize / bitmapSize) : 1.0;

    // 3. Create bitmap.
    BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();
    bitmapOptions.inSampleSize = getPowerOfTwoForSampleRatio(ratio);
    bitmapOptions.inDither = true;//optional
    bitmapOptions.inPreferredConfig = Bitmap.Config.ARGB_8888;//optional
    input = context.getContentResolver().openInputStream(uri);
    Bitmap bitmap = BitmapFactory.decodeStream(input, null, bitmapOptions);
    input.close();

    return bitmap;
}

/**
 * For Bitmap option inSampleSize - We need to give value in power of two.
 *
 * @param ratio Ratio to be rounded of to power of two.
 * @return Ratio rounded of to nearest power of two.
 */
private static int getPowerOfTwoForSampleRatio(final double ratio) {
    int k = Integer.highestOneBit((int) Math.floor(ratio));
    if (k == 0) return 1;
    else return k;
}

Comments

1. Android doesn't provide any methods to get file path from a URI, and in most of the above answers we have hard coded some constants, which may break in feature release (sorry, I may be wrong).
2. Before going directly going to a solution of the getting file path from a URI, try if you can solve your use case with a URI and Android default methods.

Reference

1. https://developer.android.com/guide/topics/providers/content-provider-basics.html
2. https://developer.android.com/reference/android/content/ContentResolver.html
3. https://hc.apache.org/httpcomponents-client-ga/httpmime/apidocs/org/apache/http/entity/mime/content/InputStreamBody.html

This can be a nice way to do it that does not involve long constructors

class Person {
    firstName?: string = 'Bob';
    lastName?: string = 'Smith';

    // Pass in this class as the required params
    constructor(params: Person) {
        // object.assign will overwrite defaults if params exist
        Object.assign(this, params)
    }
}

// you can still use the typing 
function sayName(params: Person){ 
    let name = params.firstName + params.lastName
    alert(name)
}

// you do have to call new but for my use case this felt better
sayName(new Person({firstName: 'Gordon'}))
sayName(new Person({lastName: 'Thomas'}))

First of all unit tests are, by design, supposed to run completely without interaction.

With that aside, I don't think there's a possibility that was thought of.

You could try hacking with the AllocConsole P/Invoke which will open a console even when your current application is a GUI application. The Console class will then post to the now opened console.

I went ahead and wrote it in python since I think it's a lot more readable than in c++ for a problem like this. The function order is in order of operations for solving this by hand via this video. Just import this and call "print_invert" on your matrix.

def print_invert (matrix):
  i_matrix = invert_matrix (matrix)
  for line in i_matrix:
    print (line)
  return

def invert_matrix (matrix):
  determinant = str (determinant_of_3x3 (matrix))
  cofactor = make_cofactor (matrix)
  trans_matrix = transpose_cofactor (cofactor)

  trans_matrix[:] = [[str (element) +'/'+ determinant for element in row] for row in trans_matrix]

  return trans_matrix

def determinant_of_3x3 (matrix):
  multiplication = 1
  neg_multiplication = 1
  total = 0
  for start_column in range (3):
    for row in range (3):
      multiplication *= matrix[row][(start_column+row)%3]
      neg_multiplication *= matrix[row][(start_column-row)%3]
    total += multiplication - neg_multiplication
    multiplication = neg_multiplication = 1
  if total == 0:
    total = 1
  return total

def make_cofactor (matrix):
  cofactor = [[0,0,0],[0,0,0],[0,0,0]]
  matrix_2x2 = [[0,0],[0,0]]
  # For each element in matrix...
  for row in range (3):
    for column in range (3):

      # ...make the 2x2 matrix in this inner loop
      matrix_2x2 = make_2x2_from_spot_in_3x3 (row, column, matrix)
      cofactor[row][column] = determinant_of_2x2 (matrix_2x2)

  return flip_signs (cofactor)

def make_2x2_from_spot_in_3x3 (row, column, matrix):
  c_count = 0
  r_count = 0
  matrix_2x2 = [[0,0],[0,0]]
  # ...make the 2x2 matrix in this inner loop
  for inner_row in range (3):
    for inner_column in range (3):
      if row is not inner_row and inner_column is not column:
        matrix_2x2[r_count % 2][c_count % 2] = matrix[inner_row][inner_column]
        c_count += 1
    if row is not inner_row:
      r_count += 1
  return matrix_2x2

def determinant_of_2x2 (matrix):
  total = matrix[0][0] * matrix [1][1]
  return total - (matrix [1][0] * matrix [0][1])

def flip_signs (cofactor):
  sign_pos = True 
  # For each element in matrix...
  for row in range (3):
    for column in range (3):
      if sign_pos:
        sign_pos = False
      else:
        cofactor[row][column] *= -1
        sign_pos = True
  return cofactor

def transpose_cofactor (cofactor):
  new_cofactor = [[0,0,0],[0,0,0],[0,0,0]]
  for row in range (3):
    for column in range (3):
      new_cofactor[column][row] = cofactor[row][column]
  return new_cofactor

Made an improvement code by @Ipsita - for use asynchronous read\write file I/O

readonly string logPath = @"FilePath";
...
public async Task WriteToLogAsync(string dataToWrite)
{
    TextReader tr = new StreamReader(logPath);
    string data = await tr.ReadLineAsync();
    tr.Close();

    TextWriter tw = new StreamWriter(logPath);
    await tw.WriteLineAsync(data + dataToWrite);
    tw.Close();
}
...
await WriteToLogAsync("Write this to file");

System.Diagnostics.Process.Start("PATH to exe", "Command Line Arguments");

If you have downloaded the AS + SDK bundle: in Windows 10

C:\Users\ your User Name \AppData\Local\Android\sdk\platform-tools\

Run adb.exe

Type adb shell.

Now able to access adb and the db.

First of all, the provided long code:

    <xsl:choose>
        <xsl:when test="OU_NAME='OU_ADDR1'">   --comparing two elements coming from XML             
            <!--remove if  adrees already contain  operating unit name <xsl:value-of select="OU_NAME"/> <fo:block/>-->
            <xsl:if test="OU_ADDR1 !='' ">
                <xsl:value-of select="OU_ADDR1"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR2 !='' ">
                <xsl:value-of select="OU_ADDR2"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR3 !='' ">
                <xsl:value-of select="OU_ADDR3"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="OU_TOWN_CITY !=''">
                <xsl:value-of select="OU_TOWN_CITY"/>,
                <fo:leader leader-pattern="space" leader-length="2.0pt"/>
            </xsl:if>
            <xsl:value-of select="OU_REGION2"/>
            <fo:leader leader-pattern="space" leader-length="3.0pt"/>
            <xsl:value-of select="OU_POSTALCODE"/>
            <fo:block/>
            <xsl:value-of select="OU_COUNTRY"/>
        </xsl:when>
        <xsl:otherwise>
            <xsl:value-of select="OU_NAME"/>
            <fo:block/>
            <xsl:if test="OU_ADDR1 !='' ">
                <xsl:value-of select="OU_ADDR1"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR2 !='' ">
                <xsl:value-of select="OU_ADDR2"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR3 !='' ">
                <xsl:value-of select="OU_ADDR3"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="OU_TOWN_CITY !=''">
                <xsl:value-of select="OU_TOWN_CITY"/>,
                <fo:leader leader-pattern="space" leader-length="2.0pt"/>
            </xsl:if>
            <xsl:value-of select="OU_REGION2"/>
            <fo:leader leader-pattern="space" leader-length="3.0pt"/>
            <xsl:value-of select="OU_POSTALCODE"/>
            <fo:block/>
            <xsl:value-of select="OU_COUNTRY"/>
        </xsl:otherwise>
    </xsl:choose>

is equivalent to this, much shorter code:

<xsl:if test="not(OU_NAME='OU_ADDR1)'">
              <xsl:value-of select="OU_NAME"/>
        </xsl:if>
            <xsl:if test="OU_ADDR1 !='' ">
                <xsl:value-of select="OU_ADDR1"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR2 !='' ">
                <xsl:value-of select="OU_ADDR2"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="LE_ADDR3 !='' ">
                <xsl:value-of select="OU_ADDR3"/>
                <fo:block/>
            </xsl:if>
            <xsl:if test="OU_TOWN_CITY !=''">
                <xsl:value-of select="OU_TOWN_CITY"/>,
                <fo:leader leader-pattern="space" leader-length="2.0pt"/>
            </xsl:if>
            <xsl:value-of select="OU_REGION2"/>
            <fo:leader leader-pattern="space" leader-length="3.0pt"/>
            <xsl:value-of select="OU_POSTALCODE"/>
            <fo:block/>
            <xsl:value-of select="OU_COUNTRY"/>

Now, to your question:

how to compare two elements coming from xml as string

In Xpath 1.0 strings can be compared only for equality (or inequality), using the operator = and the function not() together with the operator =.

$str1 = $str2

evaluates to true() exactly when the string $str1 is equal to the string $str2.

not($str1 = $str2)

evaluates to true() exactly when the string $str1 is not equal to the string $str2.

There is also the != operator. It generally should be avoided because it has anomalous behavior whenever one of its operands is a node-set.

Now, the rules for comparing two element nodes are similar:

$el1 = $el2

evaluates to true() exactly when the string value of $el1 is equal to the string value of $el2.

not($el1 = $el2)

evaluates to true() exactly when the string value of $el1 is not equal to the string value of $el2.

However, if one of the operands of = is a node-set, then

 $ns = $str

evaluates to true() exactly when there is at least one node in the node-set $ns1, whose string value is equal to the string $str

$ns1 = $ns2

evaluates to true() exactly when there is at least one node in the node-set $ns1, whose string value is equal to the string value of some node from $ns2

Therefore, the expression:

OU_NAME='OU_ADDR1'

evaluates to true() only when there is at least one element child of the current node that is named OU_NAME and whose string value is the string 'OU_ADDR1'.

This is obviously not what you want!

Most probably you want:

OU_NAME=OU_ADDR1

This expression evaluates to true exactly there is at least one OU_NAME child of the current node and one OU_ADDR1 child of the current node with the same string value.

Finally, in XPath 2.0, strings can be compared also using the value comparison operators lt, le, eq, gt, ge and the inherited from XPath 1.0 general comparison operator =.

Trying to evaluate a value comparison operator when one or both of its arguments is a sequence of more than one item results in error.

You can pass the globals of one module to onother:

In Module A:

import module_b
my_var=2
module_b.do_something_with_my_globals(globals())
print my_var

In Module B:

def do_something_with_my_globals(glob): # glob is simply a dict.
    glob["my_var"]=3

Inline elements can't be transformed, and pseudo elements are inline by default, so you must apply display: block or display: inline-block to transform them:

#whatever:after {
  content: "\24B6";
  display: inline-block;
  transform: rotate(30deg);
}

<div id="whatever">Some text </div>

To play an Audio file in the Windows form using C# let's check simple example as follows :

1.Go Visual Studio(VS-2008/2010/2012) --> File Menu --> click New Project.

2.In the New Project --> click Windows Forms Application --> Give Name and then click OK.

A new "Windows Forms" project will opens.

3.Drag-and-Drop a Button control from the Toolbox to the Windows Form.

4.Double-click the button to create automatically the default Click event handler, and add the following code.

This code displays the File Open dialog box and passes the results to a method named "playSound" that you will create in the next step.

 OpenFileDialog dialog = new OpenFileDialog();
 dialog.Filter = "Audio Files (.wav)|*.wav";


if(dialog.ShowDialog() == DialogResult.OK)
{
  string path = dialog.FileName;
  playSound(path);
}

5.Add the following method code under the button1_Click event hander.

 private void playSound(string path)
 {
   System.Media.SoundPlayer player = new System.Media.SoundPlayer();
   player.SoundLocation = path;
   player.Load();
   player.Play();
 }

6.Now let's run the application just by Pressing the F5 to run the code.

7.Click the button and select an audio file. After the file loads, the sound will play.

I hope this is useful example to beginners...

If you only have one occurrence of the target string you can use:

str[target] = ''

or

str.sub(target, '')

If you have multiple occurrences of target use:

str.gsub(target, '')

For instance:

asdf = 'foo bar'
asdf['bar'] = ''
asdf #=> "foo "

asdf = 'foo bar'
asdf.sub('bar', '') #=> "foo "
asdf = asdf + asdf #=> "foo barfoo bar"
asdf.gsub('bar', '') #=> "foo foo "

If you need to do in-place substitutions use the "!" versions of gsub! and sub!.

You are better off running the command in the console to get a better idea on what is wrong with the settings. In my case, when I ran gradlew check it actually tells me which referenced project was missing.

* What went wrong:
Could not determine the dependencies of task ':test'.
Could not resolve all task dependencies for configuration ':testRuntimeClasspath'.
Could not resolve project :lib-blah.
 Required by:
     project :
  > Unable to find a matching configuration of project :lib-blah: None of the consumable configurations have attributes.

The annoying thing was that, it would not show any meaningful error message during the import failure. And if I commented out all the project references, sure it let me import it, but then once I uncomment it out, it would only print that ambiguous message and not tell you what is wrong.

Some modified builds used to set the system property ro.modversion for this purpose. Things seem to have moved on; my build from TheDude a few months ago has this:

cmb@apollo:~$ adb -d shell getprop |grep build
[ro.build.id]: [CUPCAKE]
[ro.build.display.id]: [htc_dream-eng 1.5 CUPCAKE eng.TheDudeAbides.20090427.235325 test-keys]
[ro.build.version.incremental]: [eng.TheDude.2009027.235325]
[ro.build.version.sdk]: [3]
[ro.build.version.release]: [1.5]
[ro.build.date]: [Mon Apr 20 01:42:32 CDT 2009]
[ro.build.date.utc]: [1240209752]
[ro.build.type]: [eng]
[ro.build.user]: [TheDude]
[ro.build.host]: [ender]
[ro.build.tags]: [test-keys]
[ro.build.product]: [dream]
[ro.build.description]: [kila-user 1.1 PLAT-RC33 126986 ota-rel-keys,release-keys]
[ro.build.fingerprint]: [tmobile/kila/dream/trout:1.1/PLAT-RC33/126986:user/ota-rel-keys,release-keys]
[ro.build.changelist]: [17615# end build properties]

The emulator from the 1.5 SDK on the other hand, running the 1.5 image, also has root, is probably similar to the Android Dev Phone 1 (which you presumably want to allow) and has this:

cmb@apollo:~$ adb -e shell getprop |grep build
[ro.build.id]: [CUPCAKE]
[ro.build.display.id]: [sdk-eng 1.5 CUPCAKE 148875 test-keys]
[ro.build.version.incremental]: [148875]
[ro.build.version.sdk]: [3]
[ro.build.version.release]: [1.5]
[ro.build.date]: [Thu May 14 18:09:10 PDT 2009]
[ro.build.date.utc]: [1242349750]
[ro.build.type]: [eng]
[ro.build.user]: [android-build]
[ro.build.host]: [undroid16.mtv.corp.google.com]
[ro.build.tags]: [test-keys]
[ro.build.product]: [generic]
[ro.build.description]: [sdk-eng 1.5 CUPCAKE 148875 test-keys]
[ro.build.fingerprint]: [generic/sdk/generic/:1.5/CUPCAKE/148875:eng/test-keys]

As for the retail builds, I don't have one to hand, but various searches under site:xda-developers.com are informative. Here is a G1 in the Netherlands, you can see that ro.build.tags does not have test-keys, and I think that's probably the most reliable property to use.

The dplyr select function selects specific columns from a data frame. To return unique values in a particular column of data, you can use the group_by function. For example:

library(dplyr)

# Fake data
set.seed(5)
dat = data.frame(x=sample(1:10,100, replace=TRUE))

# Return the distinct values of x
dat %>%
  group_by(x) %>%
  summarise() 

    x
1   1
2   2
3   3
4   4
5   5
6   6
7   7
8   8
9   9
10 10

If you want to change the column name you can add the following:

dat %>%
  group_by(x) %>%
  summarise() %>%
  select(unique.x=x)

This both selects column x from among all the columns in the data frame that dplyr returns (and of course there's only one column in this case) and changes its name to unique.x.

You can also get the unique values directly in base R with unique(dat$x).

If you have multiple variables and want all unique combinations that appear in the data, you can generalize the above code as follows:

set.seed(5)
dat = data.frame(x=sample(1:10,100, replace=TRUE), 
                 y=sample(letters[1:5], 100, replace=TRUE))

dat %>% 
  group_by(x,y) %>%
  summarise() %>%
  select(unique.x=x, unique.y=y)

I use a small function to verify a variable has been declared, which really cuts down on the amount of clutter in my javascript files. I add a check for the value to make sure that the variable not only exists, but has also been assigned a value. The second condition checks whether the variable has also been instantiated, because if the variable has been defined but not instantiated (see example below), it will still throw an error if you try to reference it's value in your code.

Not instantiated - var my_variable; Instantiated - var my_variable = "";

function varExists(el) { 
  if ( typeof el !== "undefined" && typeof el.val() !== "undefined" ) { 
    return true; 
  } else { 
    return false; 
  } 
}

You can then use a conditional statement to test that the variable has been both defined AND instantiated like this...

if ( varExists(variable_name) ) { // checks that it DOES exist } 

or to test that it hasn't been defined and instantiated use...

if( !varExists(variable_name) ) { // checks that it DOESN'T exist }

If you're doing a LOAD DATA INFILE 'myfile.csv' operation, the easiest way to see if all the lines went in is to check show warnings(); If you load the data into an empty or temporary table, you can also check the number of rows that it has after the insert.

It seems, that the simple way

-Dmaven.javadoc.skip=true

does not work with the release-plugin. in this case you have to pass the parameter as an "argument"

mvn release:perform -Darguments="-Dmaven.javadoc.skip=true"

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.

Only call time pass-by-reference is removed. So change:

call_user_func($func, &$this, &$client ...

To this:

call_user_func($func, $this, $client ...

&$this should never be needed after PHP4 anyway period.

If you absolutely need $client to be passed by reference, update the function ($func) signature instead (function func(&$client) {)

This should be faster:

DELETE * FROM table_name;

because RDBMS don't have to look where is what.

You should be fine with truncate though:

truncate table table_name

Excerpt from PostgreSQL documentation:

Restricting and cascading deletes are the two most common options. [...] CASCADE specifies that when a referenced row is deleted, row(s) referencing it should be automatically deleted as well.

This means that if you delete a category – referenced by books – the referencing book will also be deleted by ON DELETE CASCADE.

Example:

CREATE SCHEMA shire;

CREATE TABLE shire.clans (
    id serial PRIMARY KEY,
    clan varchar
);

CREATE TABLE shire.hobbits (
    id serial PRIMARY KEY,
    hobbit varchar,
    clan_id integer REFERENCES shire.clans (id) ON DELETE CASCADE
);

DELETE FROM clans will CASCADE to hobbits by REFERENCES.

sauron@mordor> psql
sauron=# SELECT * FROM shire.clans;
 id |    clan    
----+------------
  1 | Baggins
  2 | Gamgi
(2 rows)

sauron=# SELECT * FROM shire.hobbits;
 id |  hobbit  | clan_id 
----+----------+---------
  1 | Bilbo    |       1
  2 | Frodo    |       1
  3 | Samwise  |       2
(3 rows)

sauron=# DELETE FROM shire.clans WHERE id = 1 RETURNING *;
 id |  clan   
----+---------
  1 | Baggins
(1 row)

DELETE 1
sauron=# SELECT * FROM shire.hobbits;
 id |  hobbit  | clan_id 
----+----------+---------
  3 | Samwise  |       2
(1 row)

If you really need the opposite (checked by the database), you will have to write a trigger!

 <android.support.design.widget.NavigationView
        android:id="@+id/navigation_view"
        android:background="#000"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:layout_gravity="start"
        app:headerLayout="@layout/header"
        app:itemTextColor="your color"
        app:menu="@menu/drawer" />

As others said, this is caused by the STRICT_TRANS_TABLES SQL mode.

To check whether STRICT_TRANS_TABLES mode is enabled:

SHOW VARIABLES LIKE 'sql_mode';

To disable strict mode:

SET GLOBAL sql_mode='';

The following should work:

var abc = "sAb";
bool exists = abc.IndexOf("ab", StringComparison.CurrentCultureIgnoreCase) > -1;

Both Activity and View have method dispatchTouchEvent() and onTouchEvent.The ViewGroup have this methods too, but have another method called onInterceptTouchEvent. The return type of those methods are boolean, you can control the dispatch route through the return value.

The event dispatch in Android starts from Activity->ViewGroup->View.

Jefferson is right, you have to do it backwards.

Here's the c# equivalent:

for (var i == list.Items.Count - 1; i >= 0; i--)
{
    list.Items.RemoveAt(i);
}

Go to xampp/php/php.ini

Find this line:

max_execution_time=30

And change its value to any number you want. Restart Apache.

Most likely, the userdata() function is returning an object, not a string. Look into the documentation (or var_dump the return value) to find out which value you need to use.

You can create a new keystore, but the Android Market wont allow you to upload the apk as an update - worse still, if you try uploading the apk as a new app it will not allow it either as it knows there is a 'different' version of the same apk already in the market even if you delete your previous version from the market

Do your absolute best to find that keystore!!

When you find it, email it to yourself so you have a copy on your gmail that you can go and get in the case you loose it from your hard drive!

Assuming that you really do want an array and not a std::vector, the "C++ way" would be this

#include <algorithm> 

int* array = new int[n]; // Assuming "n" is a pre-existing variable

std::fill_n(array, n, 0); 

But be aware that under the hood this is still actually just a loop that assigns each element to 0 (there's really not another way to do it, barring a special architecture with hardware-level support).

There is actually a nice Gem called local_time by basecamp to do all of that on client side only, I believe:

https://github.com/basecamp/local_time

As per the documentation, getSupportFragmentManager() is present only inside AppCompatActivity class. It is not present inside Activity class. So make sure your class extends AppCompatActivity class.

public class MainActivity extends AppCompatActivity {
}

echo "echo "we are now going to work with ${ser}" " >> $servfile

Escape all " within quotes with \. Do this with variables like \$servicetest too:

echo "echo \"we are now going to work with \${ser}\" " >> $servfile    
echo "read -p \"Please enter a service: \" ser " >> $servfile
echo "if [ \$servicetest > /dev/null ];then " >> $servfile

It's 2018 now.And I just got stuck on this problem when I must send a request that exceeds the max_input_vars. And I came up with a solution that newie like me forgot to restart php fpm service after changing the max_input_vars param. because I only tried to restart apache2 service, but not php fpm

1. uncomment code at /etc/php/7.0/fpm/php.ini and set number as you wish
   max_input_vars = 4000
2. restart php fpm service, as I use php 7. Therefore,
   sudo service php7.0-fpm restart
   

Hope it helps
Tested on Debian Stretch, php7.0

Try this with

 std::min_element(v.begin(),v.end())

You can do like this.

<input type="button" value="mybutton1" onclick="dosomething(this)">

function dosomething(element){
    alert("value is "+element.value); //you can print any value like id,class,value,innerHTML etc.
};

It makes it easier for static typed languages (CLR) to interoperate with dynamic ones (python, ruby ...) running on the DLR (dynamic language runtime), see MSDN:

For example, you might use the following code to increment a counter in XML in C#.

Scriptobj.SetProperty("Count", ((int)GetProperty("Count")) + 1);

By using the DLR, you could use the following code instead for the same operation.

scriptobj.Count += 1;

MSDN lists these advantages:

• Simplifies Porting Dynamic Languages to the .NET Framework
• Enables Dynamic Features in Statically Typed Languages
• Provides Future Benefits of the DLR and .NET Framework
• Enables Sharing of Libraries and Objects
• Provides Fast Dynamic Dispatch and Invocation

See MSDN for more details.

You need to select jQuery in the dropdown on the left and you have a syntax error because the $(document).ready should end with }); not )}; Check this link.

As of April 2018 (version 1.23) you can now also use the middle mouse button to multiline select / box select.

I created this script to solve the problem of the class img-responsive bootstrap3, and in my case this solved!

$(document).ready(function() {

    if ($.browser.msie) {

        var pic_real_width, pic_real_height;

        var images = $(".img-responsive");

        images.each(function(){

            var img = $(this);
            $("<img/>")
            .attr("src", $(img).attr("src"))
            .load(function() {
                pic_real_width = this.width;  

                pic_stretch_width = $(img).width();  

                if(pic_stretch_width > pic_real_width)
                {
                    $(img).width(pic_real_width);
                }
            });         
        });
    }

});

You may want to use one of the implementing class of java.util.Set<E> Interface e.g. java.util.HashSet<String> collection class.

A collection that contains no duplicate elements. More formally, sets contain no pair of elements e1 and e2 such that e1.equals(e2), and at most one null element. As implied by its name, this interface models the mathematical set abstraction.

This is just an example. You may like to customize it as per your requirement.

 $.ajax({
      url: 'ajax/test1.html',
      success: function(data1) {
        alert('Request 1 was performed.');
        $.ajax({
            type: 'POST',
            url: url,
            data: data1, //pass data1 to second request
            success: successHandler, // handler if second request succeeds 
            dataType: dataType
        });
    }
});

For more details : see this

try:

from_unixtime(unix_timestamp('12-03-2010' , 'dd-MM-yyyy'))

I had a problem with a big delay between calling setNeedsDisplay and drawRect: (5 seconds). It turned out I called setNeedsDisplay in a different thread than the main thread. After moving this call to the main thread the delay went away.

Hope this is of some help.

func( "1", "2", default, default, default, default, default, "eight" );

If your main script is http://Some_long_URL/index.php be carefull to specify the full URL (with explicit index.php and not only http://Some_long_URL) in the action field. Surprisingly, if not, the right script is executed, but with en empty $_FILES !

I'm not sure why Gabriel Silveira wrote the function that way but a simpler form that works for me just as well and without the minification is:

Array.prototype.unique = function() {
  return this.filter(function(value, index, array) {
    return array.indexOf(value, index + 1) < 0;
  });
};

or in CoffeeScript:

Array.prototype.unique = ->
  this.filter( (value, index, array) ->
    array.indexOf(value, index + 1) < 0
  )

Table2.Column2 => Table1.Column1

I realize this question is old but the accepted answer did not work for me. For future googlers, this is what worked for me:

UPDATE table1 
    SET column1 = (
        SELECT column2
        FROM table2
        WHERE table2.id = table1.id
    );

Whereby:

• table1 = table that has the column that needs to be updated
• table2 = table that has the column with the data
• column1 = blank column that needs the data from column2 (this is in table1)
• column2 = column that has the data (that is in table2)

I don't think desc takes an na.rm argument... I'm actually surprised it doesn't throw an error when you give it one. If you just want to remove NAs, use na.omit (base) or tidyr::drop_na:

outcome.df %>%
  na.omit() %>%
  group_by(Hospital, State) %>%
  arrange(desc(HeartAttackDeath)) %>%
  head()

library(tidyr)
outcome.df %>%
  drop_na() %>%
  group_by(Hospital, State) %>%
  arrange(desc(HeartAttackDeath)) %>%
  head()

If you only want to remove NAs from the HeartAttackDeath column, filter with is.na, or use tidyr::drop_na:

outcome.df %>%
  filter(!is.na(HeartAttackDeath)) %>%
  group_by(Hospital, State) %>%
  arrange(desc(HeartAttackDeath)) %>%
  head()

outcome.df %>%
  drop_na(HeartAttackDeath) %>%
  group_by(Hospital, State) %>%
  arrange(desc(HeartAttackDeath)) %>%
  head()

As pointed out at the dupe, complete.cases can also be used, but it's a bit trickier to put in a chain because it takes a data frame as an argument but returns an index vector. So you could use it like this:

outcome.df %>%
  filter(complete.cases(.)) %>%
  group_by(Hospital, State) %>%
  arrange(desc(HeartAttackDeath)) %>%
  head()

new { style="width:50px", maxsize = 50 };

should be

new { style="width:50px", maxlength = 50 };

ALL_TAB_COLUMNS should be queryable from PL/SQL. DESC is a SQL*Plus command.

SQL> desc all_tab_columns;
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 OWNER                                     NOT NULL VARCHAR2(30)
 TABLE_NAME                                NOT NULL VARCHAR2(30)
 COLUMN_NAME                               NOT NULL VARCHAR2(30)
 DATA_TYPE                                          VARCHAR2(106)
 DATA_TYPE_MOD                                      VARCHAR2(3)
 DATA_TYPE_OWNER                                    VARCHAR2(30)
 DATA_LENGTH                               NOT NULL NUMBER
 DATA_PRECISION                                     NUMBER
 DATA_SCALE                                         NUMBER
 NULLABLE                                           VARCHAR2(1)
 COLUMN_ID                                          NUMBER
 DEFAULT_LENGTH                                     NUMBER
 DATA_DEFAULT                                       LONG
 NUM_DISTINCT                                       NUMBER
 LOW_VALUE                                          RAW(32)
 HIGH_VALUE                                         RAW(32)
 DENSITY                                            NUMBER
 NUM_NULLS                                          NUMBER
 NUM_BUCKETS                                        NUMBER
 LAST_ANALYZED                                      DATE
 SAMPLE_SIZE                                        NUMBER
 CHARACTER_SET_NAME                                 VARCHAR2(44)
 CHAR_COL_DECL_LENGTH                               NUMBER
 GLOBAL_STATS                                       VARCHAR2(3)
 USER_STATS                                         VARCHAR2(3)
 AVG_COL_LEN                                        NUMBER
 CHAR_LENGTH                                        NUMBER
 CHAR_USED                                          VARCHAR2(1)
 V80_FMT_IMAGE                                      VARCHAR2(3)
 DATA_UPGRADED                                      VARCHAR2(3)
 HISTOGRAM                                          VARCHAR2(15)

It has some interesting behaviour in some cases that is good to be aware of:

from werkzeug.datastructures import MultiDict

d = MultiDict([("ex1", ""), ("ex2", None)])

d.get("ex1", "alternive")
# returns: ''

d.get("ex2", "alternative")
# returns no visible output of any kind
# It is returning literally None, so if you do:
d.get("ex2", "alternative") is None
# it returns: True

d.get("ex3", "alternative")
# returns: 'alternative'

I'm a complete noob on Entity but this is how I would do it in theory...

var name = yourDbContext.MyTable.Find(1).Name;

If It's A Primary Key.

-- OR --

var name = yourDbContext.MyTable.SingleOrDefault(mytable => mytable.UserId == 1).Name;

-- OR --

For whole Column:

var names = yourDbContext.MyTable
.Where(mytable => mytable.UserId == 1)
.Select(column => column.Name); //You can '.ToList();' this....

But "oh Geez Rick, What do I know..."

We are using Centos7, spring boot application with systemd. I was running java as below. and setting StandardOutput to file was not working for me.

ExecStart=/bin/java -jar xxx.jar  -Xmx512-Xms32M

Below workaround solution working without setting StandardOutput. running java through sh as below.

ExecStart=/bin/sh -c 'exec /bin/java -jar xxx.jar -Xmx512M -Xms32M >> /data/logs/xxx.log 2>&1'

I'd suggest doing this with a combination of

1. CSS overflow-y: hidden;
2. scrolling="no" (for HTML4)
3. and seamless="seamless" (for HTML5)*

^{* The seamless attribute has been removed from the standard, and no browsers support it.}

.foo {_x000D_
  width: 200px;_x000D_
  height: 200px;_x000D_
  overflow-y: hidden;_x000D_
}

<iframe src="https://bing.com" _x000D_
        class="foo" _x000D_
        scrolling="no" >_x000D_
</iframe>

I got the same message on MacOS:

"selenium.common.exceptions.SessionNotCreatedException: Message: session not created: This version of ChromeDriver only supports Chrome version 81"

Then I run this command, it's gone:

brew cask upgrade chromedriver

I use this script for autocomplete...

$('#custmoers_name').autocomplete({
    source: function (request, response) {

        // $.getJSON("<?php echo base_url('index.php/Json_cr_operation/autosearch_custmoers');?>", function (data) {
          $.getJSON("Json_cr_operation/autosearch_custmoers?term=" + request.term, function (data) {
          console.log(data);
            response($.map(data, function (value, key) {
                console.log(value);
                return {
                    label: value.label,
                    value: value.value
                };
            }));
        });
    },
    minLength: 1,
    delay: 100
});

My json return :- [{"label":"Mahesh Arun Wani","value":"1"}] after search m

but it display in dropdown [object object]...

JavaScript doesn't have function overloading, including for methods or constructors.

If you want a function to behave differently depending on the number and types of parameters you pass to it, you'll have to sniff them manually. JavaScript will happily call a function with more or fewer than the declared number of arguments.

function foo(a, b) {
    if (b===undefined) // parameter was omitted in call
        b= 'some default value';

    if (typeof(a)==='string')
        this._constructInSomeWay(a, b);
    else if (a instanceof MyType)
        this._constructInSomeOtherWay(a, b);
}

You can also access arguments as an array-like to get any further arguments passed in.

If you need more complex arguments, it can be a good idea to put some or all of them inside an object lookup:

function bar(argmap) {
    if ('optionalparam' in argmap)
        this._constructInSomeWay(argmap.param, argmap.optionalparam);
    ...
}

bar({param: 1, optionalparam: 2})

Python demonstrates how default and named arguments can be used to cover the most use cases in a more practical and graceful way than function overloading. JavaScript, not so much.

Well... These are PHP. There is an sms one from google here.

And github has one here.

Another sms one is here. However, this one has a lot more code, so it may take up more space.

Here's a good post that shows how to do it.

If you want to read the values from a file other than the app.config, you need to load it into the ConfigurationManager.

Try this method: ConfigurationManager.OpenMappedExeConfiguration()

There's an example of how to use it in the MSDN article.

Have you exposed the X-Token from server side using access-control-expose-headers? because not all headers are allowed to be accessed from the client side, you need to expose them from the server side

Also in your frontend, you can use new HTTP module to get a full response using {observe: 'response'} like

http
  .get<any>('url', {observe: 'response'})
  .subscribe(resp => {
    console.log(resp.headers.get('X-Token'));
  });

Answer for a slightly different problem:

You have a sequence of raw unicode that was saved into a str variable:

s_str: str = "\x00\x01\x00\xc0\x01\x00\x00\x00\x04"

You need to be able to get the byte literal of that unicode (for struct.unpack(), etc.)

s_bytes: bytes = b'\x00\x01\x00\xc0\x01\x00\x00\x00\x04'

Solution:

s_new: bytes = bytes(s, encoding="raw_unicode_escape")

Reference (scroll up for standard encodings):

Python Specific Encodings

I know this is an old question, but as per my recent experience, this happens because the build resources are either deleted or Idea cannot recognize them as the source.

Wherever the error appears, provide sources for the folder/directory and this error must be resolved.

Sometimes even when we assign sources for the whole folder, individual classes might still be unavailable. For novice users simple solution is to import a fresh copy and build the application again to be good to go.

It is advisable to do a clean install after this.

Just to clarify, do you have JAVA_HOME set as a system variable or set in Eclipse classpath variables? I'm pretty sure (but not totally sure!) that the system variable is used by the command line compiler (and Ant), but that Eclipse modifies this accroding to the JDK used

In Kotlin you can add Textview as follows.

 val textView = TextView(activity).apply {
            layoutParams = LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT,
                LinearLayout.LayoutParams.WRAP_CONTENT
            ).apply {
                setMargins(0, 20, 0, 0)
                setPadding(10, 10, 0, 10)
            }
            text = "SOME TEXT"
            setBackgroundColor(ContextCompat.getColor(this@MainActivity, R.color.colorPrimary))
            setTextColor(ContextCompat.getColor(this@MainActivity, R.color.colorPrimaryDark))
            textSize = 16.0f
            typeface = Typeface.defaultFromStyle(Typeface.BOLD)
        }
 linearLayoutContainer.addView(textView)

bool result = Int32.TryParse(someString, out someNumeric)

This method will try to convert someString into someNumeric, and return a result depends if the conversion is successful, true if conversion is successful and false if conversion failed. Take note that this method will not throw exception if the conversion failed like how Int32.Parse method did and instead it returns zero for someNumeric.

For more information, you can read here:

https://msdn.microsoft.com/en-us/library/f02979c7(v=vs.110).aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-2
&
How to convert string to integer in C#

If your Linux system supports it, clock_gettime(CLOCK_MONOTONIC) should be a high resolution timer that is unaffected by system date changes (e.g. NTP daemons).

I wrote a blog post a while back explaining closures. Here's what I said about closures in terms of why you'd want one.

Closures are a way to let a function have persistent, private variables - that is, variables that only one function knows about, where it can keep track of info from previous times that it was run.

In that sense, they let a function act a bit like an object with private attributes.

Full post:

So what are these closure thingys?

Just as a warning, many modern email browsers have JavaScript disabled for incoming emails as it can cause security problems. This means that many of the people you are emailing may not be able to use the content.

PS. Didn't see above post's at time of posting. My bad.

If you want to go the delete all objects route (which is much simpler than tearing down the Core Data stack, but less performant), than this is a better implementation:

- (void)deleteAllManagedObjectsInModel:(NSManagedObjectModel *)managedObjectModel context:(NSManagedObjectContext *)managedObjectContext
{
    NSBlockOperation *operation = [NSBlockOperation blockOperationWithBlock:^{
        [managedObjectContext performBlockAndWait:^{
            for (NSEntityDescription *entity in managedObjectModel) {
                NSFetchRequest *fetchRequest = [NSFetchRequest new];
                [fetchRequest setEntity:entity];
                [fetchRequest setIncludesSubentities:NO];
                NSArray *objects = [managedObjectContext executeFetchRequest:fetchRequest error:nil];
                for (NSManagedObject *managedObject in objects) {
                    [managedObjectContext deleteObject:managedObject];
                }            
            }

            [managedObjectContext save:nil];
        }];
    }];
    [operation setCompletionBlock:^{
        // Do stuff once the truncation is complete
    }];
    [operation start];
}

This implementation leverages NSOperation to perform the deletion off of the main thread and notify on completion. You may want to emit a notification or something within the completion block to bubble the status back to the main thread.

if anyone else need the solution

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();

    if (id == android.R.id.home) {
        onBackPressed();  return true;
    }

    return super.onOptionsItemSelected(item);
}

I faced the issue when i was using ZBar for scanning in tabs. Camera orientation issue. Using below code i was able to resolve issue. This is not the whole code snippet, Please take only help from this.

 public void surfaceChanged(SurfaceHolder holder, int format, int width,
                               int height) {
     if (isPreviewRunning) {
            mCamera.stopPreview();
        }

 setCameraDisplayOrientation(mCamera);

        previewCamera();

    }



 public void previewCamera() {

        try {
            // Hard code camera surface rotation 90 degs to match Activity view
            // in portrait
            mCamera.setPreviewDisplay(mHolder);
            mCamera.setPreviewCallback(previewCallback);
            mCamera.startPreview();
            mCamera.autoFocus(autoFocusCallback);
            isPreviewRunning = true;
        } catch (Exception e) {
            Log.d("DBG", "Error starting camera preview: " + e.getMessage());
        }


    }


public void setCameraDisplayOrientation(android.hardware.Camera camera) {
        Camera.Parameters parameters = camera.getParameters();

        android.hardware.Camera.CameraInfo camInfo =
                new android.hardware.Camera.CameraInfo();
        android.hardware.Camera.getCameraInfo(getBackFacingCameraId(), camInfo);


        Display display = ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
        int rotation = display.getRotation();
        int degrees = 0;
        switch (rotation) {
            case Surface.ROTATION_0:
                degrees = 0;
                break;
            case Surface.ROTATION_90:
                degrees = 90;
                break;
            case Surface.ROTATION_180:
                degrees = 180;
                break;
            case Surface.ROTATION_270:
                degrees = 270;
                break;
        }

        int result;
        if (camInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
            result = (camInfo.orientation + degrees) % 360;
            result = (360 - result) % 360;  // compensate the mirror
        } else {  // back-facing
            result = (camInfo.orientation - degrees + 360) % 360;
        }
        camera.setDisplayOrientation(result);
    }




    private int getBackFacingCameraId() {
        int cameraId = -1;
        // Search for the front facing camera
        int numberOfCameras = Camera.getNumberOfCameras();
        for (int i = 0; i < numberOfCameras; i++) {
            Camera.CameraInfo info = new Camera.CameraInfo();
            Camera.getCameraInfo(i, info);
            if (info.facing == Camera.CameraInfo.CAMERA_FACING_BACK) {

                cameraId = i;
                break;
            }
        }
        return cameraId;
    }

There is no reason to pipe the output of find into another utility. find has a -delete flag built into it.

find /tmp -name '*.pdf' -or -name '*.doc' -delete

CMD:

reg query "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment"
reg query HKEY_CURRENT_USER\Environment

PowerShell:

Get-Item "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager\Environment"
Get-Item HKCU:\Environment

Powershell/.NET: (see EnvironmentVariableTarget Enum)

[System.Environment]::GetEnvironmentVariables([System.EnvironmentVariableTarget]::Machine)
[System.Environment]::GetEnvironmentVariables([System.EnvironmentVariableTarget]::User)

Here, if you want to directly debug the server then you can use:

1.)Windows ->

2.)Show View -> Server: Right click on server then run In debug mode.

I fear this might turn out to BE the long way round but could depend on how big your data set is – presumably more than four months for example.

Assuming your data is in ColumnA:C and has column labels in Row 1, also that Month is formatted mmm(this last for ease of sorting):

1. Sort the data by Name then Month
2. Enter in D2 =IF(AND(A2=A1,C2=C1),D1+1,1) (One way to deal with what is the tricky issue of multiple entries for the same person for the same month).
3. Create a pivot table from A1:D(last occupied row no.)
4. Say insert in F1.
5. Layout as in screenshot.

I’m hoping this would be adequate for your needs because pivot table should automatically update (provided range is appropriate) in response to additional data with refresh. If not (you hard taskmaster), continue but beware that the following steps would need to be repeated each time the source data changes.

5. Copy pivot table and Paste Special/Values to, say, L1.
6. Delete top row of copied range with shift cells up.
7. Insert new cell at L1 and shift down.
8. Key 'Name' into L1.
9. Filter copied range and for ColumnL, select Row Labels and numeric values.
10. Delete contents of L2:L(last selected cell)
11. Delete blank rows in copied range with shift cells up (may best via adding a column that counts all 12 months). Hopefully result should be as highlighted in yellow.

Happy to explain further/try again (I've not really tested this) if does not suit.

EDIT (To avoid second block of steps above and facilitate updating for source data changes)

.0. Before first step 2. add a blank row at the very top and move A2:D2 up.
.2. Adjust cell references accordingly (in D3 =IF(AND(A3=A2,C3=C2),D2+1,1).
.3. Create pivot table from A:D

.6. Overwrite Row Labels with Name.
.7. PivotTable Tools, Design, Report Layout, Show in Tabular Form and sort rows and columns A>Z.
.8. Hide Row1, ColumnG and rows and columns that show (blank).

Steps .0. and .2. in the edit are not required if the pivot table is in a different sheet from the source data (recommended).

Step .3. in the edit is a change to simplify the consequences of expanding the source data set. However introduces (blank) into pivot table that if to be hidden may need adjustment on refresh. So may be better to adjust source data range each time that changes instead: PivotTable Tools, Options, Change Data Source, Change Data Source, Select a table or range). In which case copy rather than move in .0.

If your equation does not fit on a single line, then the multline environment probably is what you need:

\begin{multline}
    first part of the equation \\
    = second part of the equation
\end{multline}

If you also need some alignment respect to the first part, you can use split:

\begin{equation}
    \begin{split}
        first part &= second part #1 \\
        &= second part #2
    \end{split}
\end{equation}

Both environments require the amsmath package.

See also aligned as pointed out in an answer below.

There is obviously another process listening on the port. You might find out that process by using the following command:

$ lsof -i :8000

or change your tornado app's port. tornado's error info not Explicitly on this.

I tried Native option but does not work for me, finally regenerate ssh key in old way and add -m option in ssh-keygen command. also IDEA works with build-in option as fine.

ssh-keygen -m PEM -t rsa -b 4096 -C "email@..."

So it would become:

List<Integer> myCoords = new ArrayList<Integer>();
myCoords.add(10);
myCoords.add(20);
myCoords.add(30);
myCoords.add(40);
myCoords.add(50);
while(true)
    Iterator<Integer> myListIterator = myCoords.iterator(); 
    while (myListIterator.hasNext()) {
        Integer coord = myListIterator.next();    
        System.out.print("\r" + coord);
        try{
    Thread.sleep(2000);
  }catch(Exception e){
   // handle the exception...
  }
    }
}

Seriously this took my much valuable time but not found solution. Basically if you are taking data from sql then you are converting then you can follow these steps.

rows = cursor.fetchall()---- only tried on single column
dataset=[]
for x in rows:
    dataset.append(float(x[0]))

  import ReactDOM from 'react-dom';
  //...
  componentDidMount() {
    var n = ReactDOM.findDOMNode(this);
    console.log(n.offsetTop);
  }

You can just grab the offsetTop from the Node.

You didn't specify which flavor of regex you're using, but this will work in any of the most popular ones that can be considered "complete".

/.+?(?=abc)/

How it works

The .+? part is the un-greedy version of .+ (one or more of anything). When we use .+, the engine will basically match everything. Then, if there is something else in the regex it will go back in steps trying to match the following part. This is the greedy behavior, meaning as much as possible to satisfy.

When using .+?, instead of matching all at once and going back for other conditions (if any), the engine will match the next characters by step until the subsequent part of the regex is matched (again if any). This is the un-greedy, meaning match the fewest possible to satisfy.

/.+X/  ~ "abcXabcXabcX"        /.+/  ~ "abcXabcXabcX"
          ^^^^^^^^^^^^                  ^^^^^^^^^^^^

/.+?X/ ~ "abcXabcXabcX"        /.+?/ ~ "abcXabcXabcX"
          ^^^^                          ^

Following that we have (?={contents}), a zero width assertion, a look around. This grouped construction matches its contents, but does not count as characters matched (zero width). It only returns if it is a match or not (assertion).

Thus, in other terms the regex /.+?(?=abc)/ means:

Match any characters as few as possible until a "abc" is found, without counting the "abc".

Default values should start from the year 1000.

For example,

ALTER TABLE mytable last_active DATETIME DEFAULT '1000-01-01 00:00:00'

Hope this helps someone.

If you are using Java 8+, use java.time.LocalDate type instead.

LocalDate now = LocalDate.now();
System.out.println(now.toString());

The output:

2019-05-30

https://docs.oracle.com/javase/8/docs/api/java/time/LocalDate.html

I just implemented as:

Array.prototype.exclude = function(list){
        return this.filter(function(el){return list.indexOf(el)<0;})
}

Use as:

myArray.exclude(toRemove);

(^(\s*?\,+)+\s?)|(^\s+)|(\s+$)|((\s*?\,+)+\s?$)

Regexr

ex:

a, b, c
, ,a, b, c, 
,a, b, c   ,
,,a, b, c, ,,,
, a, b, c,    ,
    a, b, c     
     a, b, c ,,
, a, b, c, 
, ,a, b, c, ,
 , a, b, c , 
,,, a, b, c,,, 
,,, ,,,a, b, c,,, ,,,
,,, ,,, a, b, c,,, ,,,
 ,,,a, b, c ,,,
 ,,,a, b, c,,, 
   a, b, c   

becomes:

a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c
a, b, c

My solution is:

import threading

class TimeoutError(RuntimeError):
    pass

class AsyncCall(object):
    def __init__(self, fnc, callback = None):
        self.Callable = fnc
        self.Callback = callback

    def __call__(self, *args, **kwargs):
        self.Thread = threading.Thread(target = self.run, name = self.Callable.__name__, args = args, kwargs = kwargs)
        self.Thread.start()
        return self

    def wait(self, timeout = None):
        self.Thread.join(timeout)
        if self.Thread.isAlive():
            raise TimeoutError()
        else:
            return self.Result

    def run(self, *args, **kwargs):
        self.Result = self.Callable(*args, **kwargs)
        if self.Callback:
            self.Callback(self.Result)

class AsyncMethod(object):
    def __init__(self, fnc, callback=None):
        self.Callable = fnc
        self.Callback = callback

    def __call__(self, *args, **kwargs):
        return AsyncCall(self.Callable, self.Callback)(*args, **kwargs)

def Async(fnc = None, callback = None):
    if fnc == None:
        def AddAsyncCallback(fnc):
            return AsyncMethod(fnc, callback)
        return AddAsyncCallback
    else:
        return AsyncMethod(fnc, callback)

And works exactly as requested:

@Async
def fnc():
    pass

With current HTML5 it should be possible to calculate the md5 hash of a binary file, But I think the step before that would be to convert the banary data BlobBuilder to a String, I am trying to do this step: but have not been successful.

Here is the code I tried: Converting a BlobBuilder to string, in HTML5 Javascript

Recently I had a similar (not exactly the same) question in a job interview and also I heard from a friend that was asked the exactly same question in an interview. So here is an answer to the OP question and a few more variations that can be potentially asked. The answers example are given in Java because, it's stated that:

A Java solution is preferable.

Variation 1:

Array of numbers from 1 to 100 (both inclusive) ... The numbers are randomly added to the array, but there is one random empty slot in the array

public static int findMissing1(int [] arr){
    int sum = 0;
    for(int n : arr){
        sum += n;
    }
    return (100*(100+1)/2) - sum;
}

Explanation: This solution (as many other solutions posted here) is based on the formula of Triangular number, which gives us the sum of all natural numbers from 1 to n (in this case n is 100). Now that we know the sum that should be from 1 to 100 - we just need to subtract the actual sum of existing numbers in given array.

Variation 2:

Array of numbers from 1 to n (meaning that the max number is unknown)

public static int findMissing2(int [] arr){
    int sum = 0, max = 0;
    for(int n : arr){
        sum += n;
        if(n > max) max = n;
    }
    return (max*(max+1)/2) - sum;
}

Explanation: In this solution, since the max number isn't given - we need to find it. After finding the max number - the logic is the same.

Variation 3:

Array of numbers from 1 to n (max number is unknown), there is two random empty slots in the array

public static int [] findMissing3(int [] arr){
    int sum = 0, max = 0, misSum;
    int [] misNums = {};//empty by default
    for(int n : arr){
        sum += n;
        if(n > max) max = n;
    }
    misSum = (max*(max+1)/2) - sum;//Sum of two missing numbers
    for(int n = Math.min(misSum, max-1); n > 1; n--){
        if(!contains(n, arr)){
            misNums = new int[]{n, misSum-n};
            break;   
        }
    }
    return misNums;
}
private static boolean contains(int num, int [] arr){
    for(int n : arr){
        if(n == num)return true;
    }
    return false;
}

Explanation: In this solution, the max number isn't given (as in the previous), but it can also be missing of two numbers and not one. So at first we find the sum of missing numbers - with the same logic as before. Second finding the smaller number between missing sum and the last (possibly) missing number - to reduce unnecessary search. Third since Javas Array (not a Collection) doesn't have methods as indexOf or contains, I added a small reusable method for that logic. Fourth when first missing number is found, the second is the subtract from missing sum. If only one number is missing, then the second number in array will be zero.

Variation 4:

Array of numbers from 1 to n (max number is unknown), with X missing (amount of missing numbers are unknown)

public static ArrayList<Integer> findMissing4(ArrayList<Integer> arr){
    int max = 0;
    ArrayList<Integer> misNums = new ArrayList();
    int [] neededNums;
    for(int n : arr){
        if(n > max) max = n;
    }
    neededNums = new int[max];//zero for any needed num
    for(int n : arr){//iterate again
        neededNums[n == max ? 0 : n]++;//add one - used as index in second array (convert max to zero)
    }
    for(int i=neededNums.length-1; i>0; i--){
        if(neededNums[i] < 1)misNums.add(i);//if value is zero, than index is a missing number
    }
    return misNums;
}

Explanation: In this solution, as in the previous, the max number is unknown and there can be missing more than one number, but in this variation, we don't know how many numbers are potentially missing (if any). The beginning of the logic is the same - find the max number. Then I initialise another array with zeros, in this array index indicates the potentially missing number and zero indicates that the number is missing. So every existing number from original array is used as an index and its value is incremented by one (max converted to zero).

Note

If you want examples in other languages or another interesting variations of this question, you are welcome to check my Github repository for Interview questions & answers.

You can configure the ObjectMapper to convert camel case to names with an underscore:

objectMapper.setPropertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE);

Or annotate a specific model class with this annotation:

@JsonNaming(PropertyNamingStrategy.SnakeCaseStrategy.class)

Before Jackson 2.7, the constant was named:

PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERSCORES

Try the following code:

//...
By mySelector = By.xpath("/html/body/div[1]/div/section/div/div[2]/form[1]/div/ul/li");
List<WebElement> myElements = driver.findElements(mySelector);
for(WebElement e : myElements) {
  System.out.println(e.getText());
}

It will returns with the whole content of the <li> tags, like:

<a class="extra">Vše</a> (950)</li>

But you can easily get the number now from it, for example by using split() and/or substring().

I was recently experimenting in order to answer this question I was asking myself. Here are my conclusions:

Since in Windows, you can't be sure that the uname command is available, you can use gcc -dumpmachine. This will display the compiler target.

There may be also a problem when using uname if you want to do some cross-compilation.

Here's a example list of possible output of gcc -dumpmachine:

• mingw32
• i686-pc-cygwin
• x86_64-redhat-linux

You can check the result in the makefile like this:

SYS := $(shell gcc -dumpmachine)
ifneq (, $(findstring linux, $(SYS)))
 # Do Linux things
else ifneq(, $(findstring mingw, $(SYS)))
 # Do MinGW things
else ifneq(, $(findstring cygwin, $(SYS)))
 # Do Cygwin things
else
 # Do things for others
endif

It worked well for me, but I'm not sure it's a reliable way of getting the system type. At least it's reliable about MinGW and that's all I need since it does not require to have the uname command or MSYS package in Windows.

To sum up, uname gives you the system on which you're compiling, and gcc -dumpmachine gives you the system for which you are compiling.

I have stumbled upon your question a few weeks back, but since then also learned about Circumflex. This is a nice, minimal framework that is therefore easy to learn, and it has pretty good documentation available as well.

Beside it's minimal-ness, it also claims to work well with other libraries and lets you use your own implementation of things when you need it.

For some reason, this was not working

<p:column headerText="" width="25px" sortBy="#{row.key}">

But this worked:

<p:column headerText="" width="25" sortBy="#{row.key}">

I install go launcher on mine, (Windows 8)=> preferences => Screens => Screen orientation => vertical (disable QWE keyboard)

Another way of solving this is to use the DictReader class, which "skips" the header row and uses it to allowed named indexing.

Given "foo.csv" as follows:

FirstColumn,SecondColumn
asdf,1234
qwer,5678

Use DictReader like this:

import csv
with open('foo.csv') as f:
    reader = csv.DictReader(f, delimiter=',')
    for row in reader:
        print(row['FirstColumn'])  # Access by column header instead of column number
        print(row['SecondColumn'])

When you say

enum {RANDOM, IMMEDIATE, SEARCH} strategy;

you create a single instance variable, called 'strategy' of a nameless enum. This is not a very useful thing to do - you need a typedef:

typedef enum {RANDOM, IMMEDIATE, SEARCH} StrategyType; 
StrategyType strategy = IMMEDIATE;

Use following command to increase java heap size for tomcat7 (linux distributions) correctly:

echo 'export CATALINA_OPTS="-Xms512M -Xmx1024M"' > /usr/share/tomcat7/bin/setenv.sh

you can use if statement like below

select CONCAT(if(affiliate_name is null ,'',affiliate_name),'- ',if(model is null ,'',affiliate_name)) as model from devices

There is a "Enable Version Control Integration..." option from the VCS popup (control V). Until you do this and select a VCS the VCS system context menus do not show up and the VCS features are not fully integrated. Not sure why this is so hidden?

Just in case someone stumbles upon this like I did and doesn't realise, the two variations above are for different use cases.

The following:

.blue-border, .background {
    border: 1px solid #00f;
    background: #fff;
}

is for when you want to add styles to elements that have either the blue-border or background class, for example:

<div class="blue-border">Hello</div>
<div class="background">World</div>
<div class="blue-border background">!</div>

would all get a blue border and white background applied to them.

However, the accepted answer is different.

.blue-border.background {
    border: 1px solid #00f;
    background: #fff;
}

This applies the styles to elements that have both classes so in this example only the <div> with both classes should get the styles applied (in browsers that interpret the CSS properly):

<div class="blue-border">Hello</div>
<div class="background">World</div>
<div class="blue-border background">!</div>

So basically think of it like this, comma separating applies to elements with one class OR another class and dot separating applies to elements with one class AND another class.

You will need to sort your object before mapping over them. And it can be done easily with a sort() function with a custom comparator definition like

var obj = [...this.state.data];
obj.sort((a,b) => a.timeM - b.timeM);
obj.map((item, i) => (<div key={i}> {item.matchID}  
                      {item.timeM} {item.description}</div>))

You could dispatching events like

el.dispatchEvent(new Event('focus'));
el.dispatchEvent(new KeyboardEvent('keypress',{'key':'a'}));

Comparing two objects of the same type using LINQ and Reflection. NB! This is basically a rewrite of the solution from Jon Skeet, but with a more compact and modern syntax. It should also generate slightly more effecticve IL.

It goes something like this:

public bool ReflectiveEquals(LocalHdTicket serverTicket, LocalHdTicket localTicket)
  {
     if (serverTicket == null && localTicket == null) return true;
     if (serverTicket == null || localTicket == null) return false;

     var firstType = serverTicket.GetType();
     // Handle type mismatch anyway you please:
     if(localTicket.GetType() != firstType) throw new Exception("Trying to compare two different object types!");

     return !(from propertyInfo in firstType.GetProperties() 
              where propertyInfo.CanRead 
              let serverValue = propertyInfo.GetValue(serverTicket, null) 
              let localValue = propertyInfo.GetValue(localTicket, null) 
              where !Equals(serverValue, localValue) 
              select serverValue).Any();
  }

Set each index in the array at the beginning (or before the $output array is used) would probably be the easiest solution for your case.

Example

$output['admin_link'] = ""
$output['alternate_title'] = ""
$output['access_info'] = ""
$output['description'] = ""
$output['url'] = ""

Also not really relevant for your case but where you said you were new to PHP and this is not really immediately obvious isset() can take multiple arguments. So in stead of this:

if(isset($var1) && isset($var2) && isset($var3) ...){
    // all are set
}

You can do:

if(isset($var1, $var2, $var3)){
   // all are set 
}

Suppose you have:

<div id="mydiv" class="oldclass">text</div>

and the following styles:

.oldclass { color: blue }
.newclass { background-color: yellow }

You can change the class on mydiv in javascript like this:

document.getElementById('mydiv').className = 'newclass';

After the DOM manipulation you will be left with:

<div id="mydiv" class="newclass">text</div>

If you want to add a new css class without removing the old one, you can append to it:

document.getElementById('mydiv').className += ' newClass';

This will result in:

<div id="mydiv" class="oldclass newclass">text</div>

It's used to load modules. Let's use a simple example.

In file circle_object.js:

var Circle = function (radius) {
    this.radius = radius
}
Circle.PI = 3.14

Circle.prototype = {
    area: function () {
        return Circle.PI * this.radius * this.radius;
    }
}

We can use this via require, like:

node> require('circle_object')
{}
node> Circle
{ [Function] PI: 3.14 }
node> var c = new Circle(3)
{ radius: 3 }
node> c.area()

The require() method is used to load and cache JavaScript modules. So, if you want to load a local, relative JavaScript module into a Node.js application, you can simply use the require() method.

Example:

var yourModule = require( "your_module_name" ); //.js file extension is optional

You can use boost::optional (or std::optional for newer versions), which was developed in particular for decision of your problem:

boost::optional<int> y[50];
....
geoGraph.y[x] = nums[x];
....
const size_t size_y = sizeof(y)/sizeof(y[0]); //!!!! correct size of y!!!!
for(int i=0; i<size_y;i++){
   if(y[i]) { //check for null
      p[i].SetPoint(Recto.Height()-x,*y[i]);
      ....
   }
}

P.S. Do not use C-type array -> use std::array or std::vector:

std::array<int, 50> y;   //not int y[50] !!!