I am stuck and I guess it is a syntax thing I just don't get: It's a one(category)_to_many(product) relationship. In my category model I have the columns pick1, pick2, pick3, pick4, pick5. Each of those holds the id of a product. In my category_controller I want to retrieve those in a find: @productpicks = Product.find(:all, :conditi...
I'm trying to create a two-dimensional array of my custom class Cell with the following code: public class Cell { int top; int bottom; } public Form1() { Cell[,] elements; elements = new Cell[10,10]; Random r = new Random(); for (int i=0; i!=10; i++) { for (int j=0; j!=10; j++) { ...
Hi guys, just wondering the difference between the presence of the last comma in the array, if there is any at all >> [1,2,3] => [1, 2, 3] >> [1,2,3,] => [1, 2, 3] The second array still works, no exception raised Thanks ...
What is the difference between Arrays & Single-Dimensional Arrays in c#? ...
Why would... for(var k in this.errors) { $('error_list').insert({ bottom: new Element('li').update(k + ' :'+this.errors[k]) }) } ...output put all Prototype enumerable methods, plus what I've added to the array? I'm building an associative array: this.errors['email'] = 'Your email is invalid'; ...
I have some XML <carouselitem name='carouselitem'><flick><pic>/images/test1.jpg</pic><headertext>sdfsdfsdf csfdfsdf</headertext><dek>sdfsfsd sdfsf dsfsfdsfds sdf sdfsfds</dek></flick></carouselitem> Wrapped in DIV with an id of carousel. The below works fine for FF var carouselarray = $('#carousel carouselitem'); jQuery.each(carous...
If I have an array with 12 elements and I want a new array with that drops the first and 12th elements. For example, if my array looks like this: __ __ __ __ __ __ __ __ __ __ __ __ a b c d e f g h i j k l __ __ __ __ __ __ __ __ __ __ __ __ I want to either transform it or create a new array that looks like __ __ __ __ ...
This is more a question of style and preference but here goes: when should I use scala.Array? I use List all the time and occasionally run into Seq, Map and the like, but I've never used nor seen Array in the wild. Is it just there for Java compatibility? Am I missing a common use-case? ...
Hey My CUDA code must work with (reduce to mean/std, calculate histogram) 4 arrays, each 2048 floats long and already stored in the device memory from previous kernels. It is generally advised to launch at least as many blocks as I have multiprocessors. In this case however, I can load each of these arrays into the shared memory of a ...
Hi, I'm doing some assignment and got stuck at one point here. I am trying to write an list_add() function. The first functionality of it is to add values to the array. The second functionality for it is to increase the size of the array. So it works much like a vector. I dunno if I get it right though. What I tried is to create a new dy...
I have a variable length array that I need to transpose into a list of parameters for a function. I hope there is a neat way of doing this - but I cannot see how. The code that I am writing will be calling a method in a class - but I will not know the name of the method, nor how many parameters it has. I tried this - but it doesn't w...
Which is the most reliable way to check if a character array is empty? char text[50]; if(strlen(text) == 0) {} or if(text[0] == '\0') {} or do i need to do memset(text, 0, sizeof(text)); if(strlen(text) == 0) {} Whats the most efficient way to go about this? ...
I have this kind of an array array(5) { [0]=> array(5) { [0]=> string(7) "jannala" [1]=> string(10) "2009-11-16" [2]=> string(29) " <p>Jotain mukavaa.</p> " [3]=> int(12) [4]=> int(1270929600) } [1]=> array(5) { [0]=> string(7) "jannala" [1]=> string(10) "2009-...
Update: Currently looking into NSSET's minusSet links: http://stackoverflow.com/questions/1475636/comparing-two-arrays Hi guys, Could benefit from your wisdom here.. I'm using Coredata in my app, on first launch I download a data file and insert over 500 objects (each with 60 attributes) - fast, no problem. Each subsequent launch I d...
Hi all, I have search through quite a lot of questions here, but havent found one that i think fits my bill, so if you know of one please link to it. I have an array that i want to search through for a specific number and if that number is in the array, i then want to take an action and if not then another action. I have something lik...
Hello guys, i tried something like this: boolean funkyBoolean = true; int array[] = funkyBoolean ? {1,2,3} : {4,5,6}; But this code won't even compile. Is there any explanation for this? isn't funkyBoolean ? {1,2,3} : {4,5,6} a valid expression? thank's in advance! ...
Hi, Im coming from a Unix world where I never had to develop something for Office with VBA, I have to do some now and Im having a hard time! Please help me! :) So I've got 2 Excel Sheets(lets call them Sheet1 and Sheet2) and 2 forms(Form1 and Form2) to edit/add data. In Sheet1, the first two columns are MovieId and MovieName. We dont ...
In my webapp I have a page called display.php. The script in this page behaves in different ways depending on POST and GET array content/existence, let's say: If I call this page and GET array isset, the script'll load a record using $_GET['id'], in another case, if no GET isset but isset a ceratin POST key the script'll load a random re...
public class MatrixMultiply{ public static void main(String[] args) { main(); } static void main() { int[] vec = { 1, 2, 3, 4, 5 }; System.out.println( mean( vec ) ); } static int mean(int[] v) { int total = 0; for (int i = 0 ; i < v.length ; i++ ) { total = tot...
I have a strange issue with array manipulation within a bash script on Solaris. I am using the syntax ${varName[@]:index} to obtain all of the elements in array varname after the specified index. However, if there is only one element after the specified index, nothing is returned. This can be easily demonstrated by example: #!/bin/bash...