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Javascript Photoshop delete paths one by one bug?

Photoshop CC 2017. Using this loop to delete paths one by one results in some paths (out of 8) being deleted only:

 for(i = 0; i < app.activeDocument.pathItems.length; i++) {
             alert(i)
             app.activeDocument.pathItems[i].remove();
        }

The length gets reported as being 8. However alert(i) only shows 4 times. All the paths get removed only if running the loop multiple times. I’m deleting them one by one because I want to keep a path with a certain name. Any ideas?

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2

Answers


  1. 0

    You are changing pathItems as you loop through it. When you delete item i there will be a new item at position i that you skip.
    If you do the loop backwards it won’t cause any problems

     for(i = app.activeDocument.pathItems.length -1; i >= 0; i--) {
    alert(i)
    app.activeDocument.pathItems[i].remove();
 }
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  2. 0

    You can use pathItems.removeAll() in this case.

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