Search string with "or" expression

Hi,

I have a (search) text-field, to search (filter) a repeater. I want to do this with a custom expression, where I can search over several repeater fields. How can I add more fields in this custom expression which was generated automatically after switching to custom expression?

[[Item.QR_Shorty_Bezeichnung.toLowerCase().indexOf(GETWIDGETTEXT.toLowerCase()) != -1]]

Thanks,
Max

h/t to ChatGPT, which is a great resource for figuring out JS expression questions just like this:

[
Item.FIELDNAME1.toLowerCase().indexOf(GETWIDGETTEXT.toLowerCase()) != -1 ||
Item.FIELDNAME2.toLowerCase().indexOf(GETWIDGETTEXT.toLowerCase()) != -1 ||
Item.FIELDNAME3.toLowerCase().indexOf(GETWIDGETTEXT.toLowerCase()) != -1
]