I'm sorry n_n I'm just so used to Smalltalk's way of implementing numbers that it got to my head. My mistake!
On 5/1/07, beecee1977 <[EMAIL PROTECTED]> wrote:
As you say yourself, your other example is a lot clearer. For example in the context of this question, a=1; b=5; a = b; a = a+5; /*result: a=9 b=4 */ i.e. a = b doesn't make both a and b point to the same Number in memory and changing a does not change b. This is not the case for objects as you explained very clearly in your other post! This is why this can be a bit confusing though... --- In [email protected] <flexcoders%40yahoogroups.com>, Guido <[EMAIL PROTECTED]> wrote: > > Lucas, remember variables are references to objects; A = B doesn't mean "Put > in A the same data that is in B", it means "Make A reference the same object > that is currently referenced by B". > > I.e.: > > var a : Number = 1; > var b : Number = 5; > > /* > a + 3 returns 4 > b + 9 returns 14 > a + b returns 6; > */ > > //Now make a reference the same object as b (in this case, make a no longer > reference 1, but 5) > > a = b > > /* > a + 3 returns 8 > b + 9 returns 14 > a + b returns 10; > */ > > The same goes to any variable, not only the ones referencing basic types. > > Please reffer to the other email you sent, I wrote a much more clearer > example there. > > Good luck! > > On 4/30/07, Lucas Pereira <[EMAIL PROTECTED]> wrote: > > > > HI all. > > maybe my question fits here. > > > > here it goes. I have an object A of some king and object b of same > > kind as A.. > > > > if I make B.someproperty = A.someproperty and then make changes to be > > property in B, such has, B.someproperty = "something", why do the > > someproperty in A also changes? > > > > Any way to get around this? > > > > a common case is, if I have Object A of array collection with 1000 > > objects inside, and i want to create a Object B of array collection, > > and want B to have all the 1000 values that A has i will do B = A, > > instead of running the A array and push each value into B. > > > > The problem is same as above, if then i push another value on B > > (A.length would be 1001) the same value will be pushed to A array > > (A.length = 1001)!! > > > > Is this normal? Or is there a way in flex to say that i Want B to have > > same content as A, but then change B without affecting A? > > > > Thanks > > > > Lucas > > > > --- In [email protected] <flexcoders%40yahoogroups.com><flexcoders% 40yahoogroups.com>, "Tracy > > Spratt" <tspratt@> wrote: > > > > > > On your second question, regarding refreshing the screen, the ideal > > > solution is to use data binding. If your screen elements are bound to > > > some dataProvider, and that dataProvider changes, the screen elements > > > will automatically refresh, no programattic work is necessary. > > > > > > > > > > > > In your tab example, you should only need to "refresh" the data if it > > > changes, and binding will handle that for you. > > > > > > > > > > > > Do you need to explicitly refresh your data model every time the user > > > navigates between tabs? Do that on a navigation event, and your bound > > > field/elements will update automatically > > > > > > > > > > > > Tracy > > > > > > > > > > > > ________________________________ > > > > > > From: dmitriy_orlovskiy [mailto:[EMAIL PROTECTED] > > > Sent: Monday, July 26, 2004 10:37 PM > > > To: [email protected] <flexcoders%40yahoogroups.com><flexcoders%40yahoogroups.com> > > > Subject: [flexcoders] Re: global variable vs passing parameters to the > > > cus tom components > > > > > > > > > > > > Thank you very much for the response. > > > Does it mean that vars need to be defined in the script file that > > > has reference to the Application tag? > > > Is parentApplication property is the same as accessing data this way: > > > mx.core.Application.application.userObject.userId or is it different? > > > > > > What is the good practice for refreshing data on the screen? > > > creationComplete event for the container fires only once. Which > > > event in the container to use to referesh data from the database, > > > every time component becomes active? > > > Let's say there are multile tabs. Every time when tab is selected, > > > refresh data is needed. How to do that inside of the component > > > without using tab change event and broadcast it to the component > > > somehow? How to do that? > > > > > > Thank you > > > > > > --- In [email protected] <flexcoders%40yahoogroups.com><flexcoders% 40yahoogroups.com>, Gordon > > Smith <[EMAIL PROTECTED]> wrote: > > > > The use of _global in Flex applications is generally discouraged. > > > Instead > > > > you could store your user information in vars of the Application > > > object and > > > > use the parentApplication property to access them from multiple > > > custom > > > > components. > > > > > > > > If the information needs to be accessed by many custom components, > > > this is > > > > probably preferable to storing it redundantly in each component. > > > > > > > > Another common pattern is to separate data from UI by having a > > > singleton > > > > DataModel class for storing data. > > > > > > > > - Gordon > > > > > > > > > > > > -----Original Message----- > > > > From: dmitriy_orlovskiy [mailto:[EMAIL PROTECTED] > > > > Sent: Monday, July 26, 2004 3:04 PM > > > > To: [email protected] <flexcoders%40yahoogroups.com><flexcoders%40yahoogroups.com> > > > > Subject: [flexcoders] global variable vs passing parameters to the > > > custom > > > > components > > > > > > > > > > > > Hello, > > > > Are there any advantages/disadvantages to use _global variables in > > > > flex? > > > > What is the difference between storing user information (that > > > needs > > > > to be retrieved only once) in _global variable vs to pass user > > > > information to the custom component as a custom property (with use > > > of > > > > the set methods and assigning it to local variable that will be > > > > stored inside of the component). > > > > What would be prefered method in that case? > > > > > > > > Thank you > > > > > > > > > > > > > > > > > > > > > > > > Yahoo! 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