How to a composition from project insert into the current composition?

Question

How to a composition(specific name) from current project insert into the current composition?

Answer 1

Good point about checking the name of the current comp, but then you don't need to enter the loop if the name ofthe object you find is the name of the current comp:
function insertComp(name)
     var proj = app.project;
     var comp = proj.activeItem;
     if ( comp != null && comp instanceof CompItem)
          var foundIt = null;
          var curItem;
          if(comp.name != name)
               for(var a=1; a<=proj.numItems && foundIt == null; a++)
                    curItem = proj.item(a);
                    if(curItem instanceof CompItem && curItem.name == name)
                           foundIt = curItem;
               if (foundIt != null)
                    app.beginUndoGroup("Insert Comp");
                    try
                         comp.layers.add(foundIt);
                         alert("All done!");
                    catch (err)
                         alert(err);
                    app.endUndoGroup();
               else
                    alert("Not found");
          else
               alert("Can't add item to itself.");
     else
          alert("Open a comp first.");