how to check whether a selected layer is a nullLayer?

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Moderator: Paul Tuersley

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Posts: 1
Joined: July 25th, 2018, 9:50 pm

July 25th, 2018, 10:09 pm

Sorry my Mother tongue wasn't English,so my English wasn't good enough.
I wanted to write a script which need a feature that check whether a selected layer is a null Layer,therefore I try to write a simple script to test,but it didn't work.
this is my test script:

var myComp = app.project.activeItem;
var Selected = myComp.selectedLayers;

if (Selected[0] instanceof nullLayer)
alert ("a")
alert( "!");

who can help me? thanks!
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Posts: 24
Joined: October 31st, 2016, 5:00 pm
Location: Los Angeles

July 26th, 2018, 12:08 pm

The check for null layer is just layer.nullLayer, not layer instanceof nullLayer

Code: Select all

(function () {
  var comp = app.project.activeItem;
  var layer = comp.selectedLayers[0];

  if (layer.nullLayer) {
    alert('Layer is a null')
  } else {
    alert('Layer is not a null');
See: ... -nulllayer
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