Please make me understand this code.

[gourav2]

There is a UI action on my Knowledge Management form which is named as Create Article and it creates an article from the form upon clicking. Below is the snippet of the code which I am finding difficult to understand, would someone like to explain it for me.

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if (current.hasAttachments()) {

              var ids = GlideSysAttachment.copy('kb_submission', current.sys_id, 'kb_knowledge', gr.sys_id);

              ids = ids.toArray();

              for (var i = 0; i < ids.length; i++) {

                      var oldandnew = ids[i].split(',');

                      gr.text = gr.text.toString().replaceAll(oldandnew[0],oldandnew[1]);

              }

      }

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The code written in the FOR loop is ambiguous for me, thanks a lot for any help!

[gourav2]

Thank you both to Chris Martin and Antony for your detailed explanation. Thank you once again.