Loop through All Objects of a Class

Let's say I have some class called loopObject and I initialize every object through something like var apple = new loopObject(); Is there anyway to loop through all objects of a class so that some function can be performed with each object as a parameter? If there isn't a direct method, is t开发者_如何学Pythonhere a way to place each new object into an array upon initialization?

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You can make an array that contains every instance, like this:

function LoopObject() {
    LoopObject.all.push(this);
}
LoopObject.all = [];

However, it will leak memory - your instances will never go out of scope.

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function loopObject(){
 this.name = 'test'
};
var list = [], x = new loopObject, y = new loopObject;

list.push(x)
list.push(y)

for ( var i = list.length; i--; ) {
    alert( list[i].name )
}

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var allObjects [] = new Array();
function loopObject() {
    ...
    allObjects.push(this);
}

Then one can loop through all elements of allObjects as necessary using allObjects.length.