For loop help much appreciated please!

programming flash
1

Hi Guys!

Okay, the scenario is as follows. In the below code exert, I have attached a movie clip (square_mc) and made three duplicate instances of it. What I would like to happen is that when the user clicks on the delete_btn button component, it removes all of the duplicate instances. What I have done is extracted all the movie clips on stage and put them in an array called mc. Then in the event callback handler, a for loop iterates through all the movie clips in the mc array, and checks the ._name property of each clip. If ._name == “square_mc”+j, then it deletes that instance.

However, the problem is, the compiler doesn’t seem to like the concatenation of j, which corresponds to the loop control variable in this expression. When I replace j with a number that corresponds to the instance, i.e. ._name = “square_mc”+0, then it works. Obviously, I don’t want to have to hard code instance names, I want it to be dynamic. Is there any reason why the compiler doesn’t like it when I concatenate j with the string???

Below is my code exert:


this.attachMovie("square", "square_mc", 10);

square_mc.duplicateMovieClip("square_mc"+0, 11,
                                {_x:50});
square_mc.duplicateMovieClip("square_mc"+1, 12,
                                {_x:100});
square_mc.duplicateMovieClip("square_mc"+2, 13,
                                {_x:150});


var mc:Array = new Array(); // Array holds the all the movieclips on stage
var index:Number = 0;         // Used for indexing mc Array

// Loop through all movie clips on stage
for (var i in this) {
    if (typeof (this*) == "movieclip") {
        mc[index] = this*;
    }
    index++;
}

var listener:Object = new Object; // Declare listener object for component event

// Event callback handler function
// Iterates through mc Array to extract square_mc instances
// then removes/unloads them from stage
listener.click = function(evtObject:Object) {
    for (var j=0; j<mc.length; j++) {
        if (mc[j]._name == "square_mc"+j) {
            mc[j].unloadMovie();
        }
    }
}

delete_btn.addEventListener("click", listener); // Register listener with component

Any help would be greatly appreciated. I am completely puzzled as to why it just read the value for j.

Many thanks guys

TAJ