var nlArray =
nlCollection.map(clipAndSelect)
.toList(nlCollection.size());
var obj = nlArray.size()
var nmr = parseInt(obj)
print(typeof obj) //object
print(typeof nmr) //number
var x = 5;//now works
for(var i=0 ; i <= nmr; i++){
  print(typeof i); //number
  //Map.addLayer(ee.Image(nlArray.get(i)),{min: 1, max: 3, palette:
  ['0000FF', '00FF00', 'FF0000']});
}