I come from Java background, where we have data structures with interfaces that if its collection it support certain behaviour, and a set has another. while programming in Delphi I thed to hit a brick wall when it comes in asking the reflection about the behaviour of items, its very strange. for example this code does not compile ...
What are the consequences if we store huge objects collection in Arraylist when it is not expecting them (i.e we may initialized the Arraylist to accommodate 10/100/1000 objects, however at runtime we might store some 100 thousand objects). and which is better out of below two in case we know this will happen at some point of time. 1).T...
This is my array: $arr = array(-3, -4, 1, -1, 2, 4, -2, 3); I want to sort it like this: 1 2 3 4 -1 -2 -3 -4 So first there would be values greated than zero sorted from the lowest value to the highest value, then there would be negative values sorted from the highest value to the lowest value. Is there some elegant way to do this...
Hi There I am running this code currently, <?php foreach($search_results as $rslt) : ?> <? $code = $rslt['code']; if(array_key_exists($code, $short_list)) { $set = "set"; } ?> <div class="row <? echo $set;?>"></div> What I am trying to achieve is that if the array equals the $rslt['code'] then give the...
How to group this: Array( [0] => Array( [brand] => 'ABC', [model] => 'xyz', [size] => 13 ) [1] => Array( [brand] => 'QWE', [model] => 'poi', [size] => 23 ) [2] => Array( [brand] => '...
I have a set of commands that I'd like to run and do some returncode checks against the result, so i figured it would be easy to put them into an array for execution. Let's take this one as an example: C:\windows\system32\inetsrv\AppCmd.exe set config "Default Web Site/" /section system.webServer/webdav/authoring /enabled:true /commit:...
Without having to change the function signature, I'd like a PHP function to behave differently if given an associated array instead of a regular array. Note: You can assume arrays are homogenous. E.g., array(1,2,"foo" => "bar") is not accepted and can be ignored. function my_func(Array $foo){ if (…) { echo "Found associated array...
I'm trying to populate a multidimensional array (array with array elements) via Javascript or jQuery... push() is probably the wrong method to use, but I've tried a couple of others and I can't seem to get beyond single dimensional arrays. Here's the latest try so far - any advice or snippets on how I might be able to populate arrays per...
Given: var a1 = [{name:'Scott'}, {name:'John'}, {name:'Albert'}]; var sortOrder = ['John', 'Scott', 'Albert']; How can I sort the first array (by property) based on the order specified in the second array. // result: [{name:'John'}, {name:'Scott'}, {name:'Albert'}] Thanks. ...
greetings Cocoa masters - this simple issue has me crawling the walls. I have a custom class called Movie which consists of a bunch of properties and a few collections. I am populating it successfully using FMDB and SQLite. However, with each pass through the result collection from the DB, my addObject: seems to be writing over the entir...
Maybe is a silly questiion, but I haven't found a solution to what I want. Basically, I would like to declare a pointer to an array of pointers to function pointers to functions with N parameters that returns an const pointer to an int. The code below is declaring an array of pointers to the function pointers: int *const (**fptr[10])...
Hi before someone storm "it's simple or duplicate" i swear i've searched but because it's pretty easy i couldn't find it between much more complex ones , unlucky maybe. Anyway my question is very simple , I have normal array int arr[5] that is passed to function fillarr(int arr[]) all i want is fixing the next code: int fillarr(int arr[...
Hi guys, I want to convert below string to an array in javascript. {a:12, b:c, foo:bar} How do I convert this string into array of objects? Any cool idea? ...
I was just reading some code and found that the person was using arr[-2] to access the 2nd element before the arr, like so: |a|b|c|d|e|f|g| ^------------ arr[0] ^---------- arr[1] ^---------------- arr[-2] Is that allowed? I know that arr[x] is the same as *(arr + x). So arr[-2] is *(arr - 2), which seems ok. What ...
Hello there. I'm very new to programming and I must be missing something here. The first section works. The second section blows up with an error. Why is that? // this works private static int[] test2 = {1,2,3}; // this is ok private static int[] test1 = new int[3]; // these three lines do not work // tooltip states ... "cannot fin...
void someMethod() { byte[] array = { 0, 0 }; } Will this array be stored in heap or on the stack? ...
Consider this code: class MyClass { string PropertyA; int PropertyB; double PropertyC; object PropertyD; static ComparisonResult Compare(MyClass a, MyClass b){ // returns a ComparisonResult with // _sampleElement = a // _commonProperties = flags that describe the common properties of a and b ...
Now it seems like a really simple question and I may just be being thick, but what I'm trying to achieve is basically print an array to screen in the following format: Item 1, Item 2, Item 3, Item 4 Although I say to screen, as that was the best way I could describe it, I'm actually writing it to the page inside some Javascript. The w...
I have created a VB.NET 2008 Class Library that has, for the most part, been working quite well with VBA. I can perform most of the functionality that is required but I have recently run into a pretty severe problem. The reason we are working with both programming interfaces is because we need to be able to do "on the fly" coding and th...
I needed to create an algorithm which will (efficiently) take an old array and a new array and give me back the changes between the two (which items added, which removed). It happens to need to be in JavaScript (to run in the browser) but the algorithm's more important than the language. This is what I came up with: http://jsbin.com/ose...