How to hide object in scripting

In my case it was easier to put all objects I wanted to be hidden later on into one layer right from the start.
Then it is possible to hide a complete layer (and show again afterwards). Below are two functions to hide and show a top level layer. You call the function and just have to pass it the name of your layer.

E.g. call "hide_layer (text)" than you do a Save As or Export and after that call "show_layer (text).

function hide_layer (a) {
    var docHide = app.activeDocument;  
    var myLayers1 = docHide.layers;  
    var hideName1 = a;  
    try {  
        hideLayer1 = myLayers1.getByName (hideName1);  
        hideLayer1.visible = false;  
        redraw();  
        }  
    catch (e) {}  
    }
  
function show_layer (a) {
    var docShow = app.activeDocument;  
    var myLayers2 = docShow.layers;  
    var showName2 = a;  
    try {  
        showLayer2 = myLayers2.getByName (showName2);  
        showLayer2.visible = true;  
        redraw();  
        }  
    catch (e) {}  
    }