arrays

Pass multiple arrays to javascript via ajax

To pass an array from PHP to javascript via ajax, I am going to use json_encode, and recieve it on the javascript end. However, I will be returning multiple rows from my MySQL database, and need to return multiple JSON-formatted arrays. One way I thought of doing this was to string the JSON arrays together in php with some obscure charac...

ASP.NET MVC - Pass array object as a route value within Html.ActionLink(...)

I have a method that returns an array (string[]) and I'm trying to pass this array of strings into an Action Link so that it will create a query string similar to: /Controller/Action?str=val1&str=val2&str=val3...etc But when I pass new { str = GetStringArray() } I get the following url: /Controller/Action?str=System.String%5B%5D So...

if array exists, then continue

Hi, I have an array that might be present in my .aspx page, if it is, I want to fire a javascript function. I tried: if(someArray) blah(someArray); but I get an error when I havent' defined someArray. ...

Number Appears after Array Stored in SESSION

I'm doing a print_r on a array stored on a session variable and for some unknown reason it's adding a number after the array prints. Example: Array ( [0] => 868 [userid] => 868 ) 1 If I do a print_r directly in the function itself and before the variable gets stored on session variable, it doesn't add that number 1. Solution...

Best approach for safeguarding char[] when getting back from function?

I am maintaining a piece of C code where char arrays are frequently populated by passing them into functions and using the result as a string that is written to output. However there is no checking done on the array after it has been processed by the function and I'm wondering what the best approach to take is? One approach is to set th...

How can I verify that a value is present in an array (list) in Perl?

I have a list of possible values: @a = qw(foo bar baz); How do I check in a concise way that a value $val is present or absent in @a? An obvious implementation is to loop over the list, but I am sure TMTOWTDI. Thanks to all who answered! The three answers I would like to highlight are: The accepted answer - the most "built-in" ...

how to return two dimensional char array c++ ?

i ve created two dimensional array inside a function, i want to return that array, and pass it somewhere to other function.. char *createBoard( ){ char board[16][10]; int j =0;int i = 0; for(i=0; i<16;i++){ for( j=0;j<10;j++){ board[i][j]=(char)201; } } return board; } but this keeps giving m...

How to create mutlidimensional list for this in C#?

Hi, I got a table (in file) which I split into blocks by spaces. I need structure like this: ----------------------------- |21|22|23|33|3323| |32|32| |434433|545454|5454| ------------------------------ It's more like each row is its own table. How should I do this? I tried List<List<string>> matrix = new List<List<string>>(); but I...

Multidimensional arrays do not implement IEnumerable<T>, or do they?

For the reasons that I still do not understand (see this SO question) multidimensional arrays in CLR do not implement IEnumerable<T>. So the following does not compile: var m = new int[2,2] {{1, 2}, {3, 4}}; var q = from e in m select e; Then how come that this works just fine in VB.NET? Sub Main() Dim m(,) As Integer = {{1, 2}, ...

C# Reading each value of a returned array.

Hi All, I have an array being returned but as I'm new to programming I can't work out how to read each value. Can someone please point me in the right direction? My code is below. private void testToolStripMenuItem_Click(object sender, EventArgs e) { foreach (int name in getNames()) //<----I'm wrong here I guess { MessageBox.Sho...

Modulus (%) in for-loop

hi I have a code here and I would like that it will display the first 10 and if I click on that, it will display again the second batch. I tried this first with my first for-code and it work now I'm working with arrays it seems it didn't accept it The one I commented dont work? is this wrong? Thanks long [] potenzen = new long[32]; p...

Print two-dimensional array in spiral order

How do I print a 5×5 two-dimensional array in spiral order? Is there any formula so that I can print an array of any size in spiral order? ...

What to pass to the Arrays instance method toArray(T[] a) method?

If you have an instance of a Collection, say something like: Collection<String> addresses = new ArrayList<String>(); Which were to then be populated with a bunch of values, which is the "best" way, if any, to make use of the toArray() method without requiring a type cast? String[] addressesArray = addresses.toArray(new String[] {}); ...

How should I change this declaration?

I have been given a header with the following declaration: //The index of 1 is used to make sure this is an array. MyObject objs[1]; However, I need to make this array dynamically sized one the program is started. I would think I should just declare it as MyObject *objs;, but I figure if the original programmer declared it this way, t...

Passing C array as char* function parameter

I've got some code I'm mantaining with the following variable declaration: char tmpry[40]; It's being used with this function: char *SomeFunction(char *tmpryP) { // Do stuff. } The function call is: SomeFunction(&tmpry[0]); I'm pretty damn sure that's just the same as: SomeFunction(tmpry); I've even checked that the char* ...

How can I add missing index in an array in php??

Example: I have and array like this: Array( [0] => Apple [2] => Orange [5] => Pear [8] => Pear ) there are a function to complete the missing indexes: 1,3,4,6,7???? ...

How do I add a multidimensional array (AoA) to Excel using Perl?

I want to add my data stored in 2x2 dimension array in Excel using Perl. I know how to open and add simple data. This I can do using for loop. But how can I do it elegantly? This is what I am trying to do $sheet->Range("A1:B"."$size")->{Value} = @$data; or @data; ...

C array is displaying garbage data (memory problems?)

I'm making a driver for an 8x8 LED matrix that I'm driving from a computer's parallel port. It's meant to be a clock, inspired by a design I saw on Tokyoflash. Part of the driver is an array of 3*5 number "sprites" that are drawn to the matrix. A coordinate of the matrix is assigned to a coordinate of the sprite and so forth, until the...

Matching Array and Function Syntax

So the idea behind an array and a function are very similar from a black-box perspective. You pass in the input value(s) and retrieve the output value. So is it better to keep array syntax and function syntax the same or is it better to have differences? e.g. print array[0] print func(0) versus print array(0) print f...

Asp.Net DataList bind array of ImageUrls

I am trying to make a grid of thumbnails using a datalist. I have an array of the imageurls and I want to bind them in the code behind. How would I go about do that? I want the datalist to have a max column size of 5 and add rows of thumbnails until completed. <asp:DataList ID="dlImages" runat="server" RepeatColumns="5" ...