How to get symbol ID in Edge

Question

I have some codes like this:
function myFunc(name) {
     var $symbol = sym.$(name);
     //I want to do something with $symbol depending on their id, for example
     //$item.appendTo($symbol);
     //so $item will append to the corresponding symbol
for (var i=0; i<10; i++) {
     var symbol = sym.createChildSymbol("MySymbol", sym.$(Stage"));
     myFunc(symbol.getSymbolElement().attr('id')); <--not working
I tried .attr('id') and it seems not the id I want. Thanks for help.
EDIT: indeed I want to get the selector inside myFunc

Answer 1

Hello Davide,
So i rewrite an effective code be cause i was wrong this morning.
joel_pau wrote:
How to get symbol id? sym.lookupSelector()
Creating a rectangle on Stage, sym.lookupSelector("Rectangle") returns "#Stage_Rectangle".
sym.lookupSelector("oneSymbol") returns symbol id.
Now: for (var i=0; i<10; i++) { var symbol = sym.createChildSymbol("MySymbol", "Stage")); };
So, ten children have been created.
sym.lookupSelector(symbol[0]) returns first child id.
sym.lookupSelector(symbol[9]) returns last child id.
You can write:
$( sym.lookupSelector(symbol[0]) ).hide();
or
$( sym.lookupSelector(symbol[9]) ).css(...)
for (var i=0; i<10; i++) {
            var mySymbol = sym.createChildSymbol("rect", "Stage");
            mySymbol.$("Text").html("child #"+i);
            mySymbol.$("idText").html("rectangle ID = "+mySymbol.lookupSelector("Text"));
            mySymbol.$("idRectangle").html("text ID = "+mySymbol.lookupSelector("Rectangle"));
var symbolChildren = sym.getChildSymbols();
symbolChildren[1].$("Rectangle").css("background-color","red");
symbolChildren[2].getSymbolElement().hide(5000);// ==> display:none
symbolChildren[5].getSymbolElement().css("visibility","hidden");//place is empty
console.log(symbolChildren[3].getSymbolElement().attr('id'));
==> attachments.