Can the presence of a selection be set to a Boolean ?

Hey! 
I am writing a script to check if a path item overlaps the canvas bounds.
As of now my script...

Selects the entire layer/Canvas
Selects the border of the Canvas by a width 3 Pixels,

Makes an Intersect Selection of the path specified
Then checks for a selection in the document. 

If selection is present I would like it to return True
If selection isn't present I would like it to return False.

As of now it returns the same Boolean value either way. 
I also checked selection bounds and they exist for both, even when there is no visible selection present. 

There may be a better method for this, this was just the first idea I had.


Here is the current Code I have 

var doc = app.activeDocument
var old_units = app.preferences.rulerUnits;
var ERRORXTARTLAYERS = false
var ERRORXTPATHITEMS = false
app.preferences.rulerUnits = Units.PIXELS;
edgeIntersection();
alert (edgeIntersection())
//alert (ERRORXTARTLAYERS)
//alert (ERRORXTPATHITEMS)



//Functions
function edgeIntersection(){
    var edgeIntersectionBool = (intersectSelection())
    app.activeDocument.selection.selectAll()
    app.activeDocument.selection.selectBorder(2)
    if(app.activeDocument.artLayers.length === 1)
        {
        intersectSelection();
        return edgeIntersectionBool;
    }
    else {
        app.activeDocument.selection.deselect()
        return ERRORXTARTLAYERS = true; 
    }
}
function intersectSelection ()
{
    if (app.activeDocument.pathItems.length === 1 ){
    activeDocument.pathItems[0].makeSelection(0, true, SelectionType.INTERSECT);
    if (app.activeDocument.selection){
        return true;
        }
    else {
        return false;
    }
    }
    else {
        return ERRORXTPATHITEMS = true;
    }
}