# Please, help me!

**URL:** <https://discourse.nodered.org/t/please-help-me/63709>\
**Category:** General\
**Tags:** node-red-dashboard\
**Created:** [10 June 2022 07:50 UTC](https://discourse.nodered.org/t/please-help-me/63709 "2022-06-10T07:50:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![JJ22](https://avatars.discourse-cdn.com/v4/letter/j/dbc845/32.png) [@JJ22](https://discourse.nodered.org/u/JJ22)\
**Post date:** [10 June 2022 07:50 UTC](https://discourse.nodered.org/t/please-help-me/63709/1 "2022-06-10T07:50:24Z")

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Hello! I'm still new to Node-red.  
I had a stupor, I need to write code to select a controller. So that when choosing a user can write how many inputs/He needs outputs, chose the type of output (transistor or relay) and ticked the box (does he need Ethernet or not).Well, finally I gave out the result of this controller (name) and so that I could click on this name and follow the link to this controller.

 ![control](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/5/d5627679229c3863fc1cc4750308fd4db6136fd3.jpeg)  
 ![calc](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/f/a/fab05d4eb80118f0d090ef2f76982c16278e68aa.jpeg)

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [10 June 2022 07:58 UTC](https://discourse.nodered.org/t/please-help-me/63709/2 "2022-06-10T07:58:15Z")

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A fundamental thing to understand in node-red (and pretty much any programming) is that data will NEVER arrive from 2 places at the same time. To handle this, you can use the join node or store the values in context. In this case, I would recommend the join node.

See [this article in the cookbook](https://cookbook.nodered.org/basic/join-streams)for an example of how to join messages into one object.

* * *

As are new to node-red, I recommend watching this playlist: [Node-RED Essentials](https://www.youtube.com/playlist?list=PLyNBB9VCLmo1hyO-4fIZ08gqFcXBkHy-6). The videos are done by the developers of node-red. They're nice & short and to the point. You will understand a whole lot more in about 1 hour. A small investment for a lot of gain.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [9 August 2022 07:59 UTC](https://discourse.nodered.org/t/please-help-me/63709/3 "2022-08-09T07:59:16Z")

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