ActionScript 3.0 :: Index Of Array In For Each Loop
Jan 29, 2009
Consider an array with x number of elements (of type Object) where some of the elements might be undefined. I'd like to use a for-each loop to access all the elements of the array that is not undefined (since it simply skips the undefined elements). But, I also want the index of that particular element.
So I have two options:
1) Use array.indexOf(element).
2) Use traditional for loop, thus getting the index out of the iterator.
I'd rather not use option 2 since it contradicts the whole idea of not having to deal with undefined elements.
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Jan 29, 2009
Consider an array with x number of elements (of type Object) where some of the elements might be undefined.I use a for-each loop to access all the elements of the array that is not undefined (since it simply skips the undefined elements).But I also want the index of that particular element.The only option I can see is to use indexOf(). But it feels a bit like looking for water on the other side of the river so to speak.
When looping through long arrays each frame, is there a change indexOf() might slow it down? or does the for-each loop somehow know what index it's dealing with?
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Aug 16, 2011
I think it would be simplest to explain it like this:
[Code]...
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May 31, 2010
I search the stage for the level I created and put the floor pieces into an array. I'm trying to test the properties I created for each piece by tracing to output when the hero sprite is within the floor pieces sides. This works fine when I specify the array index to do this for, but does not work when I try to loop through every element of the array. I see no reason why this code should not work.
package {
import flash.display.*;
import flash.events.*;
import flash.utils.getTimer;
import flash.utils.Timer;
public class MegaManTest extends MovieClip {
private var hero:Object;
[Code] .....
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Jun 22, 2011
So, for sending to individual streams we have to reference the connected netStream we want to send to in some way like this:
sendStream.peerStreams[0].send("MyFunction",param1,param2);
and I have to determine which peer I'm sending to by their ID such as "peerID1234"
I know that you can check the peerID of the stream by doing:
sendStream.peerStreams[0]["farID"]
how can I make my send stream function know to use the array index where the peerID is?
so basically it could be like:
sendStream.peerStreams[where peerStreams[]["farID"] == peerID].send("MyFunction",param1,param2);
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Feb 15, 2011
I have used a method to shuffle a part of a Array, but i noticed that it does not work very well.When i run this method I sometimes get empty array values.So if you would try the example below and test it out some times you would get a right result but sometimes a wrong result.For example when i run this i get in my trace output:
a,b,c,d,g,,e,f (here after the g it goes wrong)
a,b,c,f,g,d,e (here it goes right)
a,b,c,d,,g,f,e (here it goes wrong)[code]...
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Oct 12, 2011
I have tried this:
PHP:
<?PHP
$link = mysql_connect("localhost","root","");
mysql_select_db("dbname");
$query = "SELECT * FROM dress where dress_type='shirts' AND sex='male'";
$results = mysql_query($query);
[Code]...
how to have control over the strings in the for each loop?
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Mar 20, 2012
I often need to set the alpha of all but one of a list of objects.
Code:
beastie1.alpha = 0;
beastie2.alpha = 1;
[code].....
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Jan 21, 2010
I have used the flash accessibility tab to add index numbers to 19 elements on my page.However, once I reach tab number 19 I cant get it to loop back to tab index number 1.
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Nov 30, 2010
Upon the stage of my flash movie, I have several symbols (movie clips) which I need to address dynamically using a loop. The symbols that I want to address all have instance names beginning with the string "lamp_", they then each have a different number concatenated on the end to distinguish between them (e.g. lamp_1, lamp_2, lamp_3.....).
The following noobish effort I have devised is totally useless, and I am hoping someone can show me how I might get this working[code]...
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Sep 25, 2009
Is there a way to get the index of an array?
For instance, if I have an array:
buttons = Array("abc","def","ghi");
If I wanted to get the index dynamically of the string "ghi", could I do that with a certain function or piece of code?
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Mar 11, 2010
I thought that there was a way to be able to name array indexes. Like instead of myArray[0], it could be myArray["tileFour"]. I thought that instead of using index numbers one could use index words.
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Sep 25, 2009
Is there a way to get the index of an array?
For instance, if I have an array:
buttons = Array("abc","def","ghi");
If I wanted to get the index dynamically of the string "ghi", could I do that with a certain function or piece of code?
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Jan 18, 2011
I have a game map made of tiles, each tile is stored in an array called _tiles.The very each tile has a "plantable" parameter, which determines whether or not something can be placed on it.Then i loop through the array and check the position of each its elements against the mosue cursor, so I know which tile am I hovering with my mouse.
And it works pretty good. The problem is that even though I know what is the position of the tile I'm having the cursor on, I still lack the knowledge of what index is that tile. I simply can't tell where exactly in the array is placed this tile. I just know its position. The reason why I want to know the index of it, is because it's the only way for me to set a proper flag, namely whether it's plantable or not. Here's the code:
ActionScript Code:
for(var j:int = 0; j < _tiles.length; j++)
{
[code]...
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May 18, 2005
Is there a way I could specify the index of a array using this short code:[code]How would I go about giving a custom index name instead of it being myArray[0]? I could do it the long way like posted below, but I was wondering the there was a way to shorten this:[code]
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Jan 18, 2007
i have an array of names that looks like this. var aNames:Array =new Array("jack","mike","Scott")
i have a text field called names which displays index 1 of the array.
and i have a button,when the button is pressed i want it to go to the next index of the array.
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May 18, 2005
Is there a way I could specify the index of a array using this short code:
Code:
var myArray = new Array("teste");
How would I go about giving a custom index name instead of it being myArray[0]? I could do it the long way like posted below, but I was wondering the there was a way to shorten this:
Code:
var myArray = new Array();
myArray[myCustomIndex] = "testing";
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Oct 30, 2009
I am working with a set of external XML data, and putting it into arrays. I have set up images and text on a page using XML data, which, when clicked on, will populate a popup window with XML data from the same index. For some reason, when I trace the index of the array, it comes up as -1.
stop();
itemNameTops1_txt.text = nme_array[0];
itemPriceTops1_txt.text = price_array[0];
[code]....
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Jun 15, 2011
I have a tricky problem in that I have an array that has been populated with strings ("item1", "item2", etc). However, at a certain point I need to pull one randomly out of the group, via a random number function. The issue is I cannot reference the items in the array by a number, I get an error. So when I try to get myArray(5) it doesn't work.
How can I work around this so I can grab a random item in my string array?
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Jan 18, 2012
I am creating a row which have 8 thumbnails in it, I save these in a array, When user drag row right to left then first Movieclip shift to last position, then i splice array 0 index and push to last position.. it works fine but when i drag it left to right then I need to cut last index of array and i need to push on first position, but it is overwrite the last value of array and after push the value(myrow[0]=thumb) array showing it's length 7 before it was 8. What is the right way to push value at 0 index value
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Apr 10, 2012
I have an array 'cat', 'dog', 'budgie'
and want to remove the item by index.
At the moment I have
function removeit(myindex) {
animals[myindex] = animals.pop()
}
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Feb 1, 2010
I got a problem with processing an array in actionScript. I removed the last element of an array through array.pop(). After that I would like to put this removed display-object back to the beginning of the array: array.unshift(object). The object is now the first element of the array but it got still its old label (number of the last element). Therefor I can't update the position (graphically) of the display object. Is it possible to "reindex" the array?
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Mar 30, 2010
var arr1:Array = new Array();
arr1.push(item1);
arr1.push(item2);
arr1.push(item3);
then arr1 and its elements get passed to other functions is there a way to know the index of an item in the array?
GetParentArrayIndex(item2) would give me 1;
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Jan 29, 2012
I'm building a plugin and I'm using actionscript to save the selection of an object in an illustrator document and then reference it later.
var arrObj:Array=new Array();
arrObj.push(app.activeDocument.selection[0]);
If I select now the same object in the document and check if its in the array it returns a -1 for the index value.
var id:int=arrObj.indexOf(app.activeDocument.selection[0]);
trace (id); //-1
Why is the selection not considered the same object as in that of the array?
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Mar 29, 2012
I have my grid-array in my flash game that has a set sized index in it, and through some code it sometimes checks outside of the Array index. Is there a way I can check to see if a index slot is undefined/existent
Gives me a TypeError #1010
public function fnPopulate(X:int, Y:int, Grid:Array){
if (Grid[ X + 1 ][ Y + 1 ] != null || Grid[ X + 1 ][ Y + 1 ] != undefined ) {
[code]......
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Jun 30, 2009
I have an MD array:
var fitb:Array = new Array("question1","question2",[["answer1","t1"],["answer2","t2"],["answer3","t3"],["answer1","t4"]]);
It's for a quiz program. Question1 is the first part of the sentence, the answers words that are shuffled and question2 is the last part. So basically they have to align parts of a sentence in the correct order.
Everything is groovy, but I can't figure out how to check if the words are in the correct order. The current [2][0][1] position is my test for embedding the answers, but when it's shuffled it seems to ruin everything.[code]...
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Feb 3, 2010
How can I add to an array without creating empty values.. the indexes are id'
So I cannot use push..
Or is there a way to remove associative array indexes? I cannot get it to work with splice...
ActionScript Code:
var test:Array = new Array(1,2,3);
trace('before splice:' + test.length);
[Code]....
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Aug 25, 2011
I have three placeholder images, the contents of which are populated by an array ("galleryArray").These three placeholders are titled "placeholderLeft", "placeholderCentre" and "placeholderRight".
the contents of "placeholderLeft" will be: "galleryArray[n-1]"
the contents of "placeholderCentre" will be: "galleryArray[n]"
the contents of "placeholderRight" will be: "galleryArray[n+1]"
[code]...
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Dec 29, 2011
I have a sprite loaded as an array, and that array has an event listener for a function. say that function is called funct1. in funct1, i want to be able to grab the index of the array and load it into a variable for future functions and what not. how would i go about this?
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Mar 22, 2012
I copied some code over to a similar function, which traces out the array index number using indexof(e.target).For some reason I'm getting the usual undefined property errors, but it is tracing other properties in the array using e.target?[code]
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