• Adobe After Effects Expressions

  for loop to remove all layers in a comp.

  Posted by Fabio Apelbaum on December 31, 2015 at 7:19 pm

  Hi guys, some help will be appreciated! This one should be very simple.

  Im writing a very simple for loop to go over a comp to remove all layers.

  for(var i = 1; i <= app.project.item(1).layers.length; i++){

  app.project.item(1).layer(i).remove();

  };

  The problem I am having is that for some reason, it only removed layer 1, 3 and 5 leaving inside the comp layers 2 and 4…. it is the first time I use the .remove() inside a for loop, could you please let me know what am I doing wrong? the same for loop works fine with any other tasks I tried such as hide all visible layers, etc. Its only with the remove(), not sure if its a bug or something i am doing wrong…

  Thanks!

  Fabio

  Dan Ebberts replied 10 years, 7 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Dan Ebberts

  December 31, 2015 at 8:55 pm

  Removing an indexed object changes the indices of all the downstream objects. So I usually run the loop backwards, like this:

  
for(var i = app.project.item(1).numLayers; i > 0; i--){
app.project.item(1).layer(i).remove();
}


  Dan

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