So I am importing a CSV file that always adds new rows, and I want to get just one of the columns, but always from the last row. I should only have 1 number outputted.
I figured out how to get the specific column by using:
msg.payload = msg.payload.speed;
and it works, but obviously outputs all the numbers from that column.
Please help, I've asked many peers IRL but none can figure out Node-RED especially because JS is already a mediocre language itself.