Javascript quick array declaration
Is there a Javascript equivalen of Perl's qw() method to quickly create arrays ? i.e. in Perl @myarray = qw / one two three /; in Javascript var myarray = ('one', 'two', 'three' ); // any alternative?? ...
arrays
Loop through multi-dimensional array and remove certain keys
Hi! I've got a nested tree structure which is based on the array below: Array ( [1] => Array ( [id] => 1 [parent] => 0 [name] => Startpage [uri] => 125 [basename] => index.php [child] => ) [23] => Array ( [id] => 23 ...
Check if an array item is set in JS
Hi, I've got an array var assoc_pagine = new Array(); assoc_pagine["home"]=0; assoc_pagine["about"]=1; assoc_pagine["work"]=2; I tried if (assoc_pagine[var] != "undefined") { but it doesn't seem to work I'm using jquery, I don't know if it can help Thanks ...
Is this list-initialization of an array of unknown size valid in C++0x?
Is this list-initialization of an array of unknown size valid in C++0x? int main() { int x[]{0, 1,2,3,4}; return x[0]; } I believe it is valid, but would appreciate some confirmation. If anyone could quote from the C++0x-FCD to support their case, it would be greatly appreciated. Thanks! ...
How do I use multiple arguments from an array to construct an execl() call in C?
I have a string array in C named args[] - now how can I use this list of arguments to construct a proper call to execl()? So if the array contains: {"/bin/ls","ls","-a","-l"} ...how can I eventually construct an execl() call that is: execl("/bin/ls","ls","-a","-l",NULL); I must be thinking about this wrong, as I can't find anythi...
obj-c problem setting array with componentsSeperatedByString
I have a data source with about 2000 lines that look like the following: 6712,Anaktuvuk Pass Airport,Anaktuvuk Pass,United States,AKP,PAKP,68.1336,-151.743,2103,-9,A What I am interested in is the 6th section of this string so I want to turn it into an array, then i want to check the 6th section [5] for an occurrance of that string "PA...
take values from table cells and turn into array
using jquery I need to retrieve an array from table cells, format the data and pass it into a js function. the code i am using is this: var l1 = new Array(); $('table#datatable tbody td:first-child').each(function() { l1.push($(this).text()); }); this is the table fragment <tr> <th scope="row">Age: 0-4</th...
Scala array initialization
You have: val array = new Array[Array[Cell]](height, width) How do you initialize all elements to new Cell("something")? Thanks, Etam (new to Scala). ...
What is fastest way to find number of matches between arrays?
Currently, I am testing every integer element against each other to find which ones match. The arrays do not contain duplicates within their own set. Also, the arrays are not always equal lengths. Are there any tricks to speed this up? I am doing this thousands of times, so it's starting to become a bottle neck in my program, which is ...
C++ How do you set an array of pointers to null in an initialiser list like way?
I am aware you cannot use an initialiser list for an array. However I have heard of ways that you can set an array of pointers to NULL in a way that is similar to an initialiser list. I am not certain how this is done. I have heard that a pointer is set to NULL by default, though I do not know if this is guaranteed/ in the C++ standard...
NSMutableArray count method show the NSMutableArray is count 0?
This is my init method: -(id)init{ self = [super init]; magicNumber = 8; myMagicArray = [[NSMutableArray alloc] initWithCapacity:(magicNumber*magicNumber)]; NSLog(@"this is the magic Array: %d", [myMagicArray count]); return self; } This is the .h: @interface Magic : NSObject { NSMutableArray *myMagicArray;...
PHP find array keys
In PHP I have an array that looks like this: $array[0]['width'] = '100'; $array[0]['height'] = '200'; $array[2]['width'] = '150'; $array[2]['height'] = '250'; I don't know how many items there are in the array. Some items can be deleted which explains the missing [1] key. I want to add a new item after this, like this: $array[]['w...
Accessing elements of an array defined in a class (C++)
Assume that int array arrayName is a member of class className, How can I access its element in my main program?? className.arrayName[0] doesn't seem to work ...
Problem with comparing value with array values
This code is what I use now. But it does not work when I try to use an array to compare values. If anybody has any idea of why, please respond. <html> <head> <script type-'text/javascript'> function hovedFunksjon() { //alert("test av funksjon fungerte"); //alert(passordLager); window.open("index10.html","Window...
C# Generic Arrays and math operations on it
Hello, I'm currently involved in a project where I have very large image volumes. This volumes have to processed very fast (adding, subtracting, thresholding, and so on). Additionally most of the volume are so large that they event don't fit into the memory of the system. For that reason I have created an abstract volume class (VoxelVol...
Problems Expanding an Array in C++
I'm writing a simulation for class, and part of it involves the reproduction of organisms. My organisms are kept in an array, and I need to increase the size of the array when they reproduce. Because I have multiple classes for multiple organisms, I used a template: template <class orgType> void expandarray(orgType* oldarray, int& numit...
Errors/warnings passing int/char arrays by reference
I'm working on a program where I try to pass parameters by reference. I'm trying to pass a 2D int array and a 1D char array by reference. Function prototype: void foo (int* (&a)[2][2], char* (&b)[4]) Function call: foo (a, b); However, when I compile the code with -ansi and -Wall flags on gcc, I get the following errors: foo.c: A...
efficiently finding the interval with non-zeros in scipy/numpy in Python?
suppose I have a python list or a python 1-d array (represented in numpy). assume that there is a contiguous stretch of elements how can I find the start and end coordinates (i.e. indices) of the stretch of non-zeros in this list or array? for example, a = [0, 0, 0, 0, 1, 2, 3, 4] nonzero_coords(a) should return [4, 7]. for: b = ...
Question about function returning array data
var grossBrackets = new Array( '300', '400', '500', '600', '700', '800', '900', '1000' ); function bracketSort( itemToSort ) { for( index = 0 ; index < grossBrackets.length ; index++ ) { if ( itemToSort < grossBrackets[index] ) { bracketData[index]++; } else if ( itemToSort > grossBracke...
Remove integers in array less than X with PHP
Hello. I have an array with integers of values from 0 to 100. I wish to remove integers that are less than number X and keep the ones that are equal or greater than number X. I am using PHP. Thanks! ...