Rename Layers: Find and Replace style renaming

Question

In Illustrator, you can use the following to find and replace layer names:
var doc = app.activeDocument; 
// name indexed object 
var layernames = { 
'Bob':'Bob Front'
// loop through all layers 
for (var i = 0; i < doc.layers.length; i++) 
//Set up Variable to access layer name 
var currentLayer = app.activeDocument.layers[i]; 
if (layernames[currentLayer.name]) 
  currentLayer.name = layernames[currentLayer.name]; 
In this script "Bob" will become "Bob Front". Is there something similar for Photoshop. Looking at the Photoshop scripting guide, this script should work as the active App document and layers methods exist in Photoshop.

Answer 1

c.pfaffenbichler wrote:
What are
var layernames = {
'Bob':'Bob Front'
and
if (layernames[currentLayer.name])
supposed to do? Is that even JavaScript? …
Hi c.pfaffenbichler, yes, this is pure Javascript.
Try this little example:
var layernames = {'Bob':'Bob Behind'};
alert(layernames['Bob']);
// a variant
layernames['Bob'] = 'Bob in the middle';
alert("a variant:  " + layernames['Bob']);
// another variant
layernames.Bob = 'Bob Front';
alert("another variant:  " + layernames.Bob);
@big_smile,
your posted script works with photoshop (if you have only artlayers and one or more layers named with Bob)
var doc = app.activeDocument;
// name indexed object
var layernames = {'Bob':'Bob Front'};
// loop through all layers
for (var i = 0; i < doc.layers.length; i++) {
    //Set up Variable to access layer name
    var currentLayer = app.activeDocument.layers[i];
    if (layernames[currentLayer.name]) {
        currentLayer.name = layernames[currentLayer.name];
All you have to do is to loop trough all artlayers (and layersets), but here is Javascript a slowly variant. Use ActionManager code instead. You will find many examples here in forum.
Have fun