# Help with a function node

**URL:** <https://discourse.nodered.org/t/help-with-a-function-node/4836>\
**Category:** General\
**Created:** [13 November 2018 13:02 UTC](https://discourse.nodered.org/t/help-with-a-function-node/4836 "2018-11-13T13:02:28Z")\
**Posts on this page:** 1\
**Showing post:** 27

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**Author:** ![Andre](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/andre/32/4554_2.png) [@Andre](https://discourse.nodered.org/u/Andre)\
**Post date:** [30 November 2018 09:37 UTC](https://discourse.nodered.org/t/help-with-a-function-node/4836/27 "2018-11-30T09:37:04Z")

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Hey,

This is a very interesting flow which I might be able to use for my project. Does anyone know how to scan a new rfid user in the csv file and use the touch panel to enter the name?

> [@RFID-Locker (array-buffer, script)](https://discourse.nodered.org/t/rfid-locker-array-buffer-script/5333):
>
> Good day, I want to rebuild the locker at my gym from old-fashioned keys to RFID lockers. The necessary hardware is already installed with electric locks etc. The goal is that someone logs in with an rfid card, the number of the card is stored in an array buffer and then the index of the arrray buffer specifies which box is assigned. The user can also give the box back. I am quite new in programming with javascript, I would have liked some help with two scripts. Check if the rfid tag is a…

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