Accumulation Get Length¶
Returns the number of items stored inside an Accumulation. If the provided input is not a valid Accumulation, the node safely returns 0.
Usage¶
Use this node when you need the count of items that have been collected through Accumulation-based workflows (e.g., after iteratively adding items with Accumulate). Commonly used for conditional logic, branching, or validating that an Accumulation contains items before further processing.
Inputs¶
| Field | Required | Type | Description | Example |
|---|---|---|---|---|
| accumulation | True | ACCUMULATION | The Accumulation object to measure. This should be created by Accumulate or related Accumulation nodes and internally holds a list of collected items. | {'accum': ['a', 'b', 'c']} |
Outputs¶
| Field | Type | Description | Example |
|---|---|---|---|
| length | INT | The number of items contained in the input Accumulation. | 3 |
Important Notes¶
- If the input is missing or not a valid Accumulation, the node returns 0.
- This node only reads the Accumulation; it does not modify it.
- Designed to work with Accumulation objects produced by nodes like Accumulate, Accumulation Head/Tail, and Accumulation Get/Set Item.
Troubleshooting¶
- Length is always 0: Ensure the input is a valid Accumulation object produced by compatible nodes and that it contains items.
- Unexpected length value: Verify that items were actually added to the Accumulation before this node executes.
- Type errors upstream: Confirm that the upstream node outputs an ACCUMULATION type, not a plain list or other data structure.