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• Proper way to return an array

  - by Ward

  Hey there, I never seem to get this right. I've got a method that returns a mutable array. What is the proper way to return the array and avoid potential memory leaks? If I plan to store the results locally inside another view controller, does that affect the way the array should be returned? Lastly, what if it's just an non-mutable array? Does that require a different technique? thanks, Howie

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• Stretch array (Numpy, Python)

  - by Snej

  I have a numpy array [1,2,3,4,5,6,7,8,9,10,11,12,13,14] and want to have an array structured like [[1,2,3,4], [2,3,4,5], [3,4,5,6], ..., [11,12,13,14]]. Sure this is possible by looping over the large array and adding arrays of length four to the new array, but I'm curious if there is some secret 'magic' Python method doing just this :)

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• How to process Perl array element in Shell script

  - by joe

  For ex : in PERL @array = (1,2,3); system ("/tmp/a.sh @array" ); In shell script how to handle this array in shell script how to handle the shell script to receive as arguments? and how to use that array variable in shell script

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• Pass array to client side for display

  - by Skoder

  Hey, I have an array which contains around 50-200 hyperlinks. How can I pass this array to the client-side so that I can iterate through the array and display each hyperlinks as a list item? The array will be stored in 'Application' as it's system wide and rarely changes. Could there be a more efficient way of achieving the hyperlinks as a list? Thanks

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• C# Array of Dictionaries

  - by Nave

  I want to create an array of Dictionaries. But the array size is unknown. For integer, i used List to obtain the integer array of unknown size. But in the case of Dictionary, am not able to create a list of Dictionary. Is thr any wayz by which this can be done? Dictionary(int, String) paramList=null;I am want to create the array of paramList(above). I am using C Sharp.

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• How to fill byte array with junk?

  - by flyout

  I am using this: byte[] buffer = new byte[10240]; As I understand this initialize the buffer array of 10kb filled with 0s. Whats the fastest way to fill this array (or initialize it) with junk data every time? I need to use that array like 5000 times and fill it every time with different junk data, that's why I am looking for a fast method to do it. The array size will also have to change every time.

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• What is the difference between array parameters in C

  - by STeN

  Hi, what is the difference between following function declarations, which create and return the array in C/C++? Both methods create the array and fill it with proper values and returns true if everything passed. bool getArray(int* array); bool getArray(int* array[]); Thanks Best Regards, STeN

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• Grouping php array items based on user and created time

  - by Jim

  This is an array of objects showing a user uploading photos: Array ( [12] => stdClass Object ( [type] => photo [created] => 2010-05-14 23:36:41 [user] => stdClass Object ( [id] => 760 [username] => mrsmith ) [photo] => stdClass Object ( [id] => 4181 ) ) [44] => stdClass Object ( [type] => photo [created] => 2010-05-14 23:37:15 [user] => stdClass Object ( [id] => 760 [username] => mrsmith ) [photo] => stdClass Object ( [id] => 4180 ) ) ) However instead of showing: mr smith uploaded one photo mr smith uploaded one photo I'd like to display: mr smith uploaded two photos by grouping similar items, grouping by user ID and them having added them within, let's say 15 minutes of each other. So I'd like to get the array in this sort of shape: Array ( [12] => stdClass Object ( [type] => photo [created] => 2010-05-14 23:36:41 [user] => stdClass Object ( [id] => 760 [username] => mrsmith ) [photos] => Array ( [0] => stdClass Object ( [id] => 4181 ) [1] => stdClass Object ( [id] => 4180 ) ) ) ) preserving the first item of the group and it's created time, and supplementing it with any other groupable photos and then unsetting any items that were grouped (so the final array doesn't have key 44 anymore as it was grouped in with 12). The array contains other actions than just photos, hence the original keys of 12 and 44. I just can't figure out a way to do this efficiently. I used to use MySQL and PHP to do this but am trying to just use pure PHP for caching reasons. Can anyone shed any insights? I thought about going through each item and seeing if I can group it with the previous one in the array but the previous one might not necessarily be relevant or even a photo. I've got total brain freeze :(

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• C array assignment and indexing with similar variable.

  - by Todd R.

  Hello! I apologize if this has been posted before. Compiling under two separate compilers, BCC 5.5 and LCC, yields 0 and 1. #include <stdio.h> int main(void) { int i = 0, array[2] = {0, 0}; array[i] = ++i; printf("%d\n", array[1]); } Am I to assume not all compilers evaluate expressions within an array from right to left?

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• php array filter

  - by benmsia

  Hi i would like to filter array in php. for example $a = ARRAY('a', 'b', 'c', 'd', 'e'); $b = ARRAY('c', 'd'); $a will be filtered by values in array $b and result is ['a', 'b', 'e'] may I know how to do it in php? Thank you.

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• JNI values assignment to array

  - by shoaib

  i have this array of jvalue type and i want to assign string values ...im on unity trying to pass parameters to my java funtion using JNI library jvalue[] myArray = new jvalue[2]; myArray[0]="abcd"; myArray[1]="khan"; gui.text= AndroidJNI.CallStaticStringMethod(obj_Activity, startAdsMethod, myArray); could some 1 plz guide how to achieve the code above im getting the error whilst assigning values to the array because the array is not of string type my function takes string parameters and jni wants them in form of array thanks any help is highly appreciated

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• Sum up values in an array list in java

  - by user1449997

  Hello to all tired and frustrated programmers, There is a problem I can't solve: In my array list there are Object arrays with the length of three and always on the last cell of the array there is a double. I need a loop which goes through the array list and sums up all doubles. (I need also some other thing from the arrays so a general idea how to loop through an array list would be perfect :-)) Any ideas? Thanks for your help, Greetings Demian

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• Segment string into array, regex?

  - by Hanpan

  I have a string which looks like this: "[segment1][segment2][segment2]" What I'd like is to be able to split the string into an array, so I'd end up with: Array[0] = "segment1", Array[1] = "segment2", Array[2] = "segment3" I've tried using the string split function, but it doesn't seem to do exactly what I want. I was wondering if anyone has some regex which might help me out? Thanks in advance

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• Using a array variable in a foreach loop

  - by Jess McKenzie

  I am having an issue trying to work out how to use a function variable in a foreach loop so that I can do the following but its not working. $var = array(7) { [0]=> array(3) { ["listingId"]=> int(532712629) } [1]=> array(3) { ["listingId"]=> int(532712202) } Works but not right: foreach($var as $varr) { var_dump($varr['id']); { Goal - Having the array variable as the foreach value foreach($var['id'] as $item) { if($item === $foo) { } }

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• C++: sizeof for array length

  - by Rosarch

  Let's say I have a macro called LengthOf(array): sizeof array / sizeof array[0] When I make a new array of size 23, shouldn't I get 23 back for LengthOf? WCHAR* str = new WCHAR[23]; str[22] = '\0'; size_t len = LengthOf(str); // len == 4 Why does len == 4? UPDATE: I made a typo, it's a WCHAR*, not a WCHAR**.

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• Resizing a rectangular array

  - by devdept

  Does a smarter way than the following exist to resize a rectangular array? double[,] temp = new double[newSize, originalSecondDimension]; Array.Copy(original, temp, original.Length); I was concerned about duplicating a huge array and the memory necessary to do it. What does the Array.Resize() do internally? Thanks, Alberto

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• Reading the text file line by line and push to an array in AS3

  - by vineth

  Hi, I need code is as3 to reading a text file line by line and insert in to an array using AS3. is it possible to do it with out having any special character. sample.txt Car van scooter bike I need to read the file and insert in to array like...Array[0]=car,Array[1]=car..... Thanks In advance

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• How to fill byte array with junk? C#

  - by flyout

  I am using this: byte[] buffer = new byte[10240]; As I understand this initialize the buffer array of 10kb filled with 0s. Whats the fastest way to fill this array (or initialize it) with junk data everytime? I need to use that array like 5000 times and fill it everytime with different junk data, thats why I am looking for a fast method to do it. The array size will also have to change everytime.

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• More efficient way to remove an element from an array in Actionscript 3

  - by Joshua

  I have an array of objects. Each object has a property called name. I want to efficiently remove an object with a particular name from the array. Is this the BEST way? private function RemoveSpoke(Name:String):void { var Temp:Array=new Array; for each (var S:Object in Spokes) { if (S.Name!=Name) { Temp.push(S); } } Spokes=Temp; }

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• How do I create an Array into another Array?

  - by Timnkd

  I have the following JavaScript Array: var jsonArray = { 'homes' : [ { "home_id":"203", "price":"925", "sqft":"1100", "num_of_beds":"2", "num_of_baths":"2.0", }, { "home_id":"59", "price":"1425", "sqft":"1900", "num_of_beds":"4", "num_of_baths":"2.5", }, // ... (more homes) ... ]} I want to convert this to the following type of Array (pseudo code): var newArray = new Array(); newArray.push(home_id's); How can I do that? Notice how the newArray only has home_ids from the big jsonArray array.

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• how do I convert a php array of names and coordinates to a javascript array for google map points?

  - by princyp

  I have a php array that has a bunch of data that I need but specifically I need just the name and longitude and latitude from each item in the array so that I can display points on a google map. The google map array needs to look like this in the end var points = [ ['test name', 37.331689, -122.030731, 4] ['test name 2', 37.331689, -122.030731, 4] ]; What is the best way to put my php data into a js array?

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• bash split text into limited character buckets (array member)

  - by soField

  i have text such as http://pastebin.com/H8zTbG54 we can say this text is set of rules splitted by "OR" at the end of lines i need to put set of lines(rules) into buckets (bash array members) but i have character limit for each array member which is 1024 so each array member should contain set of rules but character count for each array member can not exceed 1024 can anybody help me to do that solaris 10

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• Generate navigation from a multi-dimensional array

  - by rg88

  The question: How do I generate navigation, allowing for applying different classes to different sub-items, from a multi-dimensional array? Here is how I was doing it before I had any need for multi-level navigation: Home Pics About and was generated by calling nav(): function nav(){ $links = array( "Home" => "home.php", "Pics" => "pics.php", "About" => "about.php" ); $base = basename($_SERVER['PHP_SELF']); foreach($nav as $k => $v){ echo buildLinks($k, $v, $base); } } Here is buildLinks(): function buildLinks($name, $page, $selected){ if($selected == $page){ $theLink = "<li class=\"selected\"><a href=\"$page\">$name</a></li>\n"; } else { $thelink = "<li><a href=\"$page\">$name</a></li>\n"; } return $thelink; } My question, again: how would I achieve the following nav (and notice that the visible sub navigation elements are only present when on that specific page): Home something1 something2 Pics About and... Home Pics people places About What I've tried From looking at it it would seem that some iterator in the SPL would be a good fit for this but I'm not sure how to approach this. I have played around with RecursiveIteratorIterator but I'm not sure how to apply a different style to only the sub menu items and also how to only show these items if you are on the correct page. I built this array to test with but don't know how to work with the submenu1 items individually: $nav = array( array( "Home" => "home.php", "submenu1" => array( "something1"=>"something1.php", "something2" => "something2.php") ), array("Pics" => "pics.php"), array("About" => "about.php") ); The following will print out the lot in order but how do I apply, say a class name to the submenu1 items or only show them when the person is on, say, the "Home" page? $iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($nav)); foreach($iterator as $key=>$value) { echo $key.' -- '.$value.'<br />'; }

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• Python Array problem

  - by foo wei tau

  I have an array that I have to add a new value to array value. I am new to arrays. how do I loop thru the array and add to the value in the existing array.

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• Getting an array back from php using $.ajax

  - by Wurlitzer

  A php script is giving this array (which has been passed through json_encode()) [{name:"a1",path:"b1"},{name:"a2",path:"b2"}] I use the following function to retrieve the array to jquery: $.ajax({ type: "POST", url: "functions.php", data: "action=" + something, cache: false, success: function(response) { alert(response); } }); The problem is I get the array back as a string: (new String("[{name:"a1",path:"b1"},{name:"a2",path:"b2"}}]")) How can I get it to be a javascript array? Help would be much appreciated.

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