drop
| Name | Type | Description | Optional |
|---|---|---|---|
input |
? |
input to be discarded |
no |
drop reads its input and discards it. It is for use when a result is produced unconditionally from an upstream node, but the result is not needed.
In this example, the Clock utility node outputs a boolean value once a second. This boolean output is not optional; the program will halt with an error if the Clock output is simply left disconnected. Instead, it is sent into a drop node that consumes and discards.
drop is needed relatively rarely, because most special nodes make any output optional that might sensibly be left disconnected. And similarly for most AWS SDK nodes.