How can we create a Bar code with the Texture Node Editor? I had seen a post about how to create lines but one of the Answers by Lemon was excellent.. He used the Shader Node Editor to create a Barcode Generator.

Here is the Link: How to make a barcode like stripes texture

I would love to be able to recreate this within the Texture Node editor. I tried to adapt it but it's not the same..
waaow!! here is a zany bar code shader for eevee simpletons such as i