Actionscript 3 :: Dictionary Mechanism - Dictionary Use Id To Compare If The Two Keys Are Equal, Not Use Strict Equal(===) To Compare If The Key Is The Same?
Aug 27, 2010
The dictionary use strict equals(===) for key comparison, how to change the comparison, so I can use my standard for comparison, for example, I have a class named Student:
class Student{
var id:int;
var name:String;[code]....
I want Dictionary use id to compare if the two keys are equal, not use strict equal(===) to compare if the key is the same.
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Similar Posts:
Apr 27, 2011
whether using a String as the key in a Dictionary results in slower lookups than using an Object, Class or Custom Object (an instance of developer defined Type)?
When using a String as a key, does the literal String have to be parsed, or does the Dictionary key point to the String Object?
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Dec 23, 2010
in Java this: dict.keySet()
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Oct 28, 2009
I'm making a custom class which extends the Dictionary class. I want to access its key:value pairs like any regular Dictionary Object. i.e.:
for (var key:Object in myCustomDictionary) {
trace(key);
}
When I test the example though, trace() returns nothing.
Here is my code:
/*// TIMELINE EXAMPLE
import lachmanski.ui.LmKeys;
trace( LmKeys.keys );
*/
[Code] .....
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Dec 19, 2010
The great thing about dictionary: one can use objects as keys. The bad thing: compiler still believes that the keys are strings.
[code]...
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Jul 29, 2010
Normally in Flex you use a collection like ArrayCollection as the dataprovider for components. I often have data stored as a dictionary whose values I would like to use as a dataprovider.
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Aug 31, 2010
I'm working with a large set of hierarchical taxonomic terms, where each term ("203") has a matching "term203" movie clip on the stage, and am having trouble getting a recursive function to return all of a given term's descendants.There is a main Dictionary() object with the following nested organization for each term:
{ [object Movie Clip] : { "tid":203, "parent":99, "name":"Culture", selected:false, "otherData":"etc" } }
...where the [object Movie Clip]'s instance name would be "term203". All of these object:subObjectArray items ("terms") are stored in a master taxonomy:Dictionary() object.I've been trying to make a recursive function (which is in itself already a little above my head) that takes the click.target of a movie clip and returns a new Dictionary() object with all of the children and grandchildren and great grandchildren (etc) of that term, in the same, nested organization described above.
The code below traces the right number of recursive loops, but the returned Dictionary() object only contains the first run's terms (only the immediate children of the requested term).
var taxonomy:Dictionary = new Dictionary();
// ...Term info is loaded into taxonomy from a JSON-style text file)
// ...MOUSE_OVER event listeners are added to each
[code]....
I certainly do not claim to be the most efficient AS3 programmer, so I am open to alternative configurations. However, after trying static and nested Arrays, I would prefer to continue using the Dictionary() object as my main pool.As noted, only the immediate children end up animating in the revealChildren() function. It's mystifying to me then, that in the getAllChildren() function, all of the descendants trace sequentially (well in no particular order) in the output window.Also I can't get any sort of name or property out of the subSet Object. That could be the problem.I've only tested it as far as 'two generations,' but it seems that only the first round of calling the function successfully adds those terms to the new Dictionary() object and returns it intact to the animating function.
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Mar 1, 2011
I'm often seeing others using a Dictionary object in their AS3 code that simply maps objects by String keys and wondering if there is any advantage at all of using a Dictionary over a simple Object if String keys are used. Anyone know any details on this? I would suppose that since an Object is more lightweight it should be faster and preferable over a Dictionary if used with String keys.
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Jun 17, 2011
why the Dictionary class ignores setPropertyIsEnumerable? I found this bug at bugs.adobe, seems the prototype might be involved in some devious way.Here is some test code:
var obj:Object = {
'a': 0,
'b': 1,[code]......
Notice that the Dictionary is still enumerating the property "a" even though it was told not to.
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Aug 18, 2008
What is the correct way to determine if a Dictionary contains a particular key or not?
In Java I can do:
HashMap x= new HashMap();
x.containsKey("test"); // returns true/false
Is this the correct way in AS3?
var xictionary = new Dictionary();
x["test"] == null
[Code]...
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Feb 9, 2009
what does 9.2 x 100 equal to? it equals to 920. in actionscript 2 ,it shows the right result while on the other hand, actionscript 3 shows 919.9999 .
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Jun 3, 2011
somehow plug a dictionary into flash which can be used to verify words in a word creation game I'd like to create..
Sounds perfectly feasible but I just wouldn't know where to start in finding it... are there ones which are readily available ?? (preferably free)
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Mar 5, 2010
for (var k in dictionary)
{
var key:KeyType = KeyType(k);
var value:ValType = ValType(dictionary[k]); // <-- lookup
// do stuff
}
This is what I use to loop through the entries in a dictionary. As you can see in every iteration I perform a lookup in the dictionary. Is there a more efficient way of iterating the dictionary (while keeping access to the key)?
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Apr 22, 2010
As the title suggests, is it possible to use AMF to encode/decode Dictionaries (without subclassing, that is)? For example, here's a test case:
[Code]...
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Jan 22, 2011
What exactly is the difference between an object and a dictionary in Actionscript?
var obj:Object = new Object();
obj.something = "something";
var dict:Dictionary = new Dictionary();
dict.something = "something";
trace(obj.something, dict.something);
The trace statement seems identical...
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Aug 5, 2011
Right now I am using ArrayCollection. But I want to change that to Set as I want make sure do duplicate values come.
var addressList:ArrayCollection = new ArrayCollection();
One way is I can use Dictionary and store addresses as a key. And I can just use keys to iterate. But I am looking for Java HashSet like implementation.
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Jun 9, 2010
I am writing my destructor but I am not sure how to make sure that my Dictionary object is completely dismantled.
Do I just walk the keys and 'delete' the objects? If so do I need to destroy the keys? or are they already removed when the object is removed from the Dictionary?[code]...
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Mar 20, 2009
I have an ARRAY which contains single symbols and DICTIONARY in where every symbol in array is attached to unique string, what I want to do - is to merge ARRAY and DICTIONARY together, and as a result receive RESULT_ARRAY where order of elements is equal to ARRAY but elements are replaced according to a DICTIONARY.
Code:
//for example
//this is what we have -
var originalA:Array = new Array ();
originalA[0]="y";
[code]...
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Nov 18, 2009
I'm trying to do something along the following:
Code:
//Loop through all items in the dictionary to update each and every one
for (var key:DisplayObjectContainer in containerDict)
[code].....
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Jun 24, 2010
Has anyone tried sending a Dictionary through the arguments of ExternalInterface.call()?What happens to it when it reaches the Javascript side, because from what I understand JavaScript does not have a Dictionary implementation.
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Mar 6, 2011
Is there a way for flash to get the nature of a word (noun, verb, adverb, etc.) from a dictionary somewhere?
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Dec 10, 2010
is it possible to make a comma (,) to equal (.) in as3?
example:
now i write
2.31 + 4 = 6.31
so it's possible to write
2,31 + 4 = 6,31
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Feb 21, 2005
i've started to make like a quiz in flash with 218 questions in it! i've made it so the computer will show X amount of random questions.i've already got the code on the buttons so it will jump to a random question, but i'm having trouble with limiting the number of questions asked.
i've got an inputbox so the user can chose how many questions they do and the buttons add 1 each time thier pressed to a different variable.
i've got this code, but it never seems to stop asking questions
on (release) {
score = score+0;
page = page+1
if( (page == pagemax) )
GotoAndStop(220)
if( (page != pagemax) )
myVariable = random(219); //creates a random number between 0 and 5
if (myVariable < 2){ //checks to see if it's value is zero
myVariable = 2; //set it to 1 if it is zero
}
gotoAndStop(myVariable); //goes to and plays the frame.
}
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Jan 31, 2010
I have a couple of mc's that are added to the stage after one another.I want them to have equal space between them.Here i the code snippet with the problem, below is the full code.
Code:
for each (var link:XML in settingsXML.links.link) {
i++;
newsItem = new NewsItem();
newsItem.menuLabel.text = link.@name;
[code]....
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Jul 22, 2010
Does Flex Dictionary maintain the order of its elements?
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Feb 19, 2011
Does Flash Actionscript have List and Dictionary equivalents? I've only found the documentation for the Array.
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Mar 8, 2011
I am using Flex dictionary to store ValueObjects with Timestamp as the 'key' for each object.
Given a timestamp, I want to iterate over the dictionary starting from the given timestamp key value.
The Docs discuss the following for dictionary iteration, but this iterates from the first key-value pair.
for (var key:Object in myDictionary)
{
trace(key, myDictionary[key]);
}
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Aug 29, 2011
In my parsley container, I'm instantiating an object 'A' that contains a Dictionary (flash.utils.Dictionary).
I would like to create this Dictionary using parsley and inject it to 'A'.
This dictionary pairs structure is: key=id of object 'B', value='B'
where object 'B' is also an object which is defined and created using parsley(so basically the pairs structure is and object id as a key and the object itself as the value).
Now, I have no problem creating 'A' and 'B', but can't seem to find the right way to create this dictionary using parsley, nor injecting it to 'A'.
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Nov 17, 2011
So I am writing a program which uses Dictionary to store objects. For example
var dictionary:Dictionary=new Dictionary();
var myObject = new myObject(var1, var2, var3);
dicionary["key"]=myObject;
where var1, var2, and var3 are simply means of assigning values to variables in myObject.can I access values or functions that are found in myObject? In myObject class I have some getters and setters. Can I use a getter to get the value of var1 for example.
dictionary["keys"].getVar1()?
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Jan 20, 2012
This is kinda related to my other question: flex dictionary bug? The HashMap has a method getValues() which returns an array of values:
[cODE]....
the loop for (var key:* in map) iterates the keys of the dictionary map, but it seems its implementation does it in some random way. What is the best way to write a test since I don't know what the array returned by getValues method will contain? I thought I could do it by calling the sort method, and compare the values, is there a better way to do it?assertEquals(map.getValues().sort(), "value A,value B,value C,value X,value Y,value Z");
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