How can I use custom “class”(function) as array datatype in javascript?

Question

I know in javascript if I want define an array,I use:

var arr=new array();

However,this array could only use for store date,int,string,just the javascript already defined

Suppose I have already my custom datatype:

        function LayerInfo(uuid, top, left, index, pindex) {
            this.uuid = uuid;
            this.top = top;
            this.left = left;
            this.index = index;
            this.pindex = pindex;
        }

How can I initialize an array which the data type is the "LayerInfo",could store the "LayerInfo"?

like

var l=new LayerInfo()?

if this could be done ,how can I let the layerinfo push into the array,or pull it out?

Answer 1

However,this array could only use for store date,int,string,just the javascript already defined

Fortunately not, arr can store any object you like, including instances of your LayerInfo :

var arr = new Array(); //note caps or var arr = [];
arr[i] = new LayerInfo();
arr[i] = someLaterInfoInstance;
arr.push(new LayerInfo()); ...