I want to print a varValue of an object with it's related review objects.

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  I know similar questions have been asked, but I have an array... which has been shuffled, so elements are at random indexes.

  int[] cells = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
  

  How can I write an if statement, that determines if the cells array is in the order of:

  {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0};
  

  I would like the if to return true if the entire array is sorted, not true for each index/element.
• icepdf not render on linux instance in JFrame

  I am using icepdf in my web project. It works fine when I run this project in eclipse and also run when I use this project war on tomcat version 8/9. But when I deploy this war in Linux instance all goes fine but pdf does not render in JFrame. My java version and tomcat version also same as i locally use.

  Here is my code

  import org.icepdf.ri.common.SwingController;
  import org.icepdf.ri.common.SwingViewBuilder;
  import java.io.InputStream;
  import javax.swing.*; 
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      // build a component controller
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      SwingViewBuilder factory = new SwingViewBuilder(controller);
  
      JPanel viewerComponentPanel = factory.buildViewerPanel();
  
      // add interactive mouse link annotation support via callback
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              new org.icepdf.ri.common.MyAnnotationCallback(
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      JFrame applicationFrame = new JFrame();
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  Here stream is coming from a source
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• php class get result of another method

  im new to php object oriented i just want to know is there a way to get result of another method in a php class like this?

  class OnlineUsers {
  
       public function online_friends($user_id) {
  
          $Followers = Follower::where('following',$user_id)->select('follower')->get();
  
          $Online_Followers = OnlineUser::whereIn('user_id',$Followers)->get();
  
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       public function (Request $request) {
  
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• I can't use property inside of class method

  I want to check my request they have csrf token or not. So I created couple class for the checking this.

  in my first class, I check the request and get the token

  protected $token;
  
  public function __construct($token){
   $this->token = $token;
   $this->checkToken();
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  protected function checkToken() {
  
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              $this->checkPrefix();
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        }
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  then I check request with the CSRF class. Problem is, I can't use $this->token inside of checkToken() method, it says null, but when I var_dump within __construct it gives me token as well..

  Why this hapennig ? And how can I fix this ? I tried to pass $token as parameter with checkToken() method but I got same result..
• Why exception: basic_string::_M_construct null not valid when trying to initialize pointer to object as null?

  I have an object that has as attributes some strings and also a pointer to its same kind of object.

  #define NULLPOINTER 0
  class ClassVarDecNode : public AST{
   public:
    ClassVarDecNode(string staticOrFieldKeyword, string classVarType, AST* listVarNameNode, char semicolon, AST* classVarDecNode);
    ~ClassVarDecNode();
    void visit();
  
   private:
    string staticOrFieldKeyword;
    string classVarType;
    AST* listVarNameNode;
    char semicolon;
    AST* classVarDecNode;
  };
  

  And the constructor looks like this

  ClassVarDecNode::ClassVarDecNode(string staticOrFieldKeyword, string classVarType, AST* listVarNameNode, char semicolon, AST* classVarDecNode):
    AST(),
    staticOrFieldKeyword( staticOrFieldKeyword ),
    classVarType( classVarType ),
    listVarNameNode( listVarNameNode ),
    semicolon( semicolon ),
    classVarDecNode( classVarDecNode )
  {}
  

  Sometimes as the las parameter I have to send a NULLPOINTER

  $$ = new ClassVarDecNode("somestring", "somestring", someListNode, ';', NULLPOINTER);
  

  And after that line, the program throws the exception.

  terminate called after throwing an instance of 'std::logic_error'
    what():  basic_string::_M_construct null not valid
  Aborted
  

  I've googled it, and I found that this exception is thrown when a string is constructed with a null char value. I think that sending that NULLPOINTER initializes its attributes as null also, and I don't know how to fix it. Can someone help please?
• Add the array objects field data in to single object in javascript

  I getting this data into my response

  var data=[ { id: 9,
      ticketId: 9,
      member: { id: 3, email: 'ganeshpandi@gmail.com' } },
    { id: 10,
      ticketId: 9,
      member: { id: 4, email: 'braveganesh128@gmail.com' } } ];
  

  I want to send all the mail to all member email ,

  my expected result is:

  var data=[ {
      ticketId: 9,
      member: {  email: 'ganeshpandi@gmail.com','braveganesh128@gmail.com' } },
     ];
  

  This result is possible or not in foreach ?
• How do you access an object with keys as a React child? - React Native

  I am trying to display this JSON data:

  [{"id":"1","imagename":"dog"},{"id":"2","imagename":"cat"},{"id":"3","imagename":"mouse"},{"id":"4","imagename":"deer"},{"id":"5","imagename":"shark"},{"id":"6","imagename":"ant"}]
  

  Here is the current code that I have to display that data:

   componentDidMount(){
       fetch(`http://www.example.com/React/data.php`, {
       method: 'POST',
       headers: {
         'Accept': 'application/json',
         'Content-Type': 'application/json',
       },
     }).then((response) => response.json())
         .then((responseJson) => {
  
        this.data = responseJson;
        this.setState({ loading: false });
  
  
     }).catch((error) => {
       console.warn(error);
     });
  
  }
  
       return(
  
           <View style = { styles.MainContainer }>
            <View>
             <Card>          
                <View>
                <Text>{this.data.id}</Text>
                <Text>{this.data.imagename}</Text>
               </View>
             </Card>
             </View>
           </View>
         );
  

  My result is that nothing displays, but when I just have this.data I get the object with keys error again.

  Looking up similar answers to find my problem, I then attempted to .map, but I kept getting cannot not find variable: i:

  this.data =  responseJson.map(item => ({ ...item, i }))
  

  And lastly here is the rest of my code for the attempt:

  return(
  
       <View style = { styles.MainContainer }>
        <View>
         <Card>          
            <View key={i}>
            <Text>{item.id}</Text>
            <Text>{item.imagename}</Text>
           </View>
         </Card>
         </View>
       </View>
     );
  

  When I put my json data into an array, nothing displays because (I'm guessing) there are no commas between the keys. Like this:

  {"id":"1","imagename":"dog"}{"id":"2","imagename":"cat"}{"id":"3","imagename":"mouse"}{"id":"4","imagename":"deer"}{"id":"5","imagename":"shark"}{"id":"6","imagename":"ant"}
  

  And if anyone needs to see my data.php:

  Echos Object

      $dsql = "SELECT * FROM random";
  
  $dresult = $con->query($dsql);
  
  if ($dresult->num_rows >0) {
  
  
   while($drow[] = $dresult->fetch_assoc()) {
  
   $dtem = $drow;
  
   $djson = json_encode($dtem);
  
  
   }
  
  } else {
  }
  echo $djson;
  

  Echos Array

  $dsql = "SELECT * FROM random";
  
  $dresult = $con->query($dsql);
  
  if ($dresult->num_rows >0) {
  
  
   while($drow = $dresult->fetch_assoc()) {
  
   $dtem = $drow;
  
   $djson = json_encode($dtem);
   echo $djson;
  
   }
  
  } else {
  }
  

  Any help with this problem is gladly appreciated!
• Getting the value of a specific key in an object through a function

  As an exercise, I am trying to write a function called getValue() which takes two parameters, obj and key.

  This is unrelated to getting an index of an object by its property.

  The function should pass in the name of an object (obj) and the name of an object property (key), the return the value associated with that property. If there is no value (that is, the property does not exist in the object), getValue() should return undefined. As long as the named property does exist, the function should return its associated value.

  I wrote a function that works but only if the property is named key. Which of course is not what I had in mind.

  function getValue(obj, key) {
  	this.obj = {};
  	this.key = obj.key;
  	const val = function() {
  		return obj.key;
  	};
  	return val();
  }
  
  var theObject = {nokey: 'my_value'};
  var output = getValue(theObject, 'nokey');
  console.log(output);
  // --> 'should return 'my_value' but
  // but returns undefined
• Cannot access DOM object through createRef

  I'm very new to React JS. I'm trying to access the dom object of an iframe for changing its size.

  I have the iframe in my render - <iframe ref={this.myRef} ></iframe>

  And in the constructor, I have

  this.myRef = React.createRef()

  When I console log(this.myRef.current), I get back null eventhough when I console (this.myRef), it is shown to have current inside it and it holds many objects.
• Converting an Excel to text in vb

  Sub SaveToCSVs()
  Dim fDir As String
  Dim wB As Workbook
  Dim wS As Worksheet
  Dim fPath As String
  Dim sPath As String
  fPath = "C:\Users\rshuell\Desktop\My_Excel_Files\"
  sPath = "C:\Users\rshuell\Desktop\My_Excel_Files\"
  fDir = Dir(fPath)
  Do While (fDir <> "")
  If Right(fDir, 4) = ".xls" Or Right(fDir, 5) = ".xlsx" Then
  On Error Resume Next
  Set wB = Workbooks.Open(fPath & fDir)
  For Each wS In wB.Sheets
  wS.SaveAs sPath & wS.Name, xlCSV
  Next wS
  wB.Close False
  Set wB = Nothing
  End If
  fDir = Dir
  On Error GoTo 0
  Loop
  End Sub
  

  I am having difficulty referencing the "Workbook" reference for Excel, my intentions are to make a very small Excel worksheet tab delimited into a text file that is created but the name of the file is named as a excel sheet I just need to rename it as a text file. Like I said that isn't so much the issue I cant figure out the "WorkBook" or "Active Workbook" I keep seeing in the sample code I am finding and looking up how to referencing the Microsoft.Excel, I have tried to add to my project isn't working to do away with the errors in the code. Any help would be greatly appreciated.

  edited

  Sub SaveToCSVs()
  Dim fDir As String
  Dim wB As Workbook
  Dim wS As Worksheet
  Dim fPath As String
  Dim sPath As String
  fPath = "C:\Users\rshuell\Desktop\My_Excel_Files\"
  sPath = "C:\Users\rshuell\Desktop\My_Excel_Files\"
  fDir = Dir(fPath)
  Do While (fDir <> "")
  If Right(fDir, 4) = ".xls" Or Right(fDir, 5) = ".xlsx" Then
  On Error Resume Next
  Set wB = Workbooks.Open(fPath & fDir)
  For Each wS In wB.Sheets
  wS.SaveAs sPath & wS.Name, xlCSV
  Next wS
  wB.Close False
  Set wB = Nothing
  End If
  fDir = Dir
  On Error GoTo 0
  Loop
  End Sub
  
• const reference of std::vector

  For one of my functions, cppcheck returns: Parameter 'neighbors' is passed by value. It could be passed as a (const) reference which is usually faster and recommended in C++.

  I get that it doesn't make sense to allocate the vector twice when a reference could be passed, but I really don't know how to do this.... I've tried a lot of similiar answers here, but I couldn't find one that really fits my problem.

  Class vectorMatrix

  This function gets all neighbors and stores them in an

  std::vector<Cell*> vectorMatrix::getCellNeighbors(int x, int y) {
      std::vector<Cell*> neighbors;
      return neighbors;
  }
  

  This function passes the neighbors for each cell to the cell (which stores them for quick access... they are needed every click)

    void vectorMatrix::initCells()
    {
      for (int x = 0; x < _rows; x++)
      {
        for (int y = 0; y < _columns; y++)
        {
          _cellMatrix[x][y]->setNeighbors(getCellNeighbors(x, y));
        }
      }
    }
  

  Class Cell

  HXX

  std::vector<Cell*> _neighbors;
  

  CXX

  void Cell::setNeighbors(std::vector<Cell*> neighbors)
  {
    _neighbors = neighbors;
  }  
  

  .) How do i pass the vector correctly as a (const?) reference. .) Is this code efficient? Does it make sense to store references to all neighbors inside each cell? (map size can be up to 256x256 and each tile is an object)

  The full code can be found here: https://github.com/JimmySnails/IsometricEngine