flash as3 - 在对象中声明 null 属性，或在对象声明中运行函数

Question

我有一个分配了许多属性的对象：

var project_array:Array = [];
var slideObject:Object = {
            project_title : myXML.projects.project[i].title.toUpperCase(),
            project_desc : myXML.projects.project[i].description.toUpperCase(),
            project_name : myXML.projects.project[i].name.toUpperCase(),
            project_agency : myXML.projects.project[i].agency.toUpperCase(),
            project_img : myXML.projects.project[i].@img,
            project_types : myXML.projects.project[i][email protected](", ")
        }
project_array.push(slideObject);

我想要做的是，根据slideObject.project_types中的值，在slideObject中创建另一个数组来跟踪project_clips - 像这样：

for ( var i in project_types_array) {

        /*(var typeClass:Class = getDefinitionByName('type_' + project_types_array[i]);
        (var typeClip:typeClass = new typeClass();
        project_clips_array.push(typeClip);
        trace (project_types_array[i]);*/

        switch (project_types_array[i]){

        case "p":
            var clip_p = new type_p();
            project_clips_array.push(clip_p);
            break;
        case "exp":
            var clip_exp = new type_exp();
            project_clips_array.push(clip_exp);
            break;
        case "f":
            var clip_f = new type_f();
            project_clips_array.push(clip_f);
            break;
        case "oi":
            var clip_oi = new type_oi();
            project_clips_array.push(clip_oi);
            break;
        case "tv":
            var clip_tv = new type_tv();
            project_clips_array.push(clip_tv);
            break;
        }

    }

但我不是很确定该把它放在哪里。如果我将它放在对象构造函数之外，我会得到“术语未定义”，我猜是因为它不知道project_clips_array是什么 - 但如果我在构造函数中声明project_clips_array，它似乎需要定义，即我可以不要创建空白属性。但我也不能将它放在构造函数中，因为它似乎不允许我在对象构造函数中运行函数。执行此函数以获取对象内的数组的正确语法或代码排列是什么？

Answer 1

我认为这样的事情应该有效：

var project_array:Array = [];
var slideObject:Object = {
        project_title : myXML.projects.project[i].title.toUpperCase(),
        project_desc : myXML.projects.project[i].description.toUpperCase(),
        project_name : myXML.projects.project[i].name.toUpperCase(),
        project_agency : myXML.projects.project[i].agency.toUpperCase(),
        project_img : myXML.projects.project[i].@img,
        project_types : myXML.projects.project[i][email protected](", ")
        }

slideObject.project_type_array = sortTypes(slideObject.project_types); 

project_array.push(slideObject);

function sortTypes(orig_array:Array):Array
{

    var type_array:Array = [];

    for ( var i in orig_array)
    {

        switch (orig_array[i])
        {

            case "p":
                var clip_p = new type_p();
                type_array.push(clip_p);
                break;
            case "exp":
                var clip_exp = new type_exp();
                type_array.push(clip_exp);
                break;
            case "f":
                var clip_f = new type_f();
                type_array.push(clip_f);
                break;
            case "oi":
                var clip_oi = new type_oi();
                new_array.push(clip_oi);
                break;
            case "tv":
                var clip_tv = new type_tv();
                type_array.push(clip_tv);
                break;
        }
    }

    return type_array;
}

Answer 2

我是这样设置的：

for (var i=0;i<tp;i++){
        var slideObject:Object = {
            project_title : myXML.projects.project[i].title.toUpperCase(),
            project_desc : myXML.projects.project[i].description.toUpperCase(),
            project_name : myXML.projects.project[i].name.toUpperCase(),
            project_agency : myXML.projects.project[i].agency.toUpperCase(),
            project_img : myXML.projects.project[i].@img,
            project_types : myXML.projects.project[i][email protected](", "),
            project_type_clips : [],
        }


        for (var j in slideObject.project_types){
            //trace ("object" + i + " | type " + j)
            switch (slideObject.project_types[j]){

            case "p":
                var clip_p = new type_p();
                slideObject.project_type_clips.push(clip_p);
                break;
            case "exp":
                var clip_exp = new type_exp();
                slideObject.project_type_clips.push(clip_exp);
                break;
            case "f":
                var clip_f = new type_f();
                slideObject.project_type_clips.push(clip_f);
                break;
            case "oi":
                var clip_oi = new type_oi();
                slideObject.project_type_clips.push(clip_oi);
                break;
            case "tv":
                var clip_tv = new type_tv();
                slideObject.project_type_clips.push(clip_tv);
                break;
            }


        } //end project_types loop

        project_array.push(slideObject);
    } // end object creation loop

    loadProject();

}