Add rounding to this script

Hi everyone,

I need to add rounding to this script. I need two versions, one for 1 decimal place and one for 0 decimal places. Can anyone help out?

#target illustrator

addMeasurements();

function addMeasurements() {

    var i, doc, imp, met, txtItems, txt, nub;

    doc = app.activeDocument;

    imp = doc.layers.getByName( 'Text' );

    met = doc.layers.add();  met.name = 'New';

    txtItems = imp.textFrames;

    for ( i = 0; i < txtItems.length; i++ ) {

        txtItems[i].duplicate( met, ElementPlacement.PLACEATEND )

    };

    txtItems = met.textFrames;

    for ( i = 0; i < txtItems.length; i++ ) {

        var nub = parseInt( txt = txtItems[i].contents ); // For Numbers only!!!!

        txtItems[i].contents = String( txt * 1.1 )

    };

};

Thanks in advance.