CHECK IF STRING UNDEFINED¶
Checks whether a given string is empty, null, or matches a user-defined set of null-equivalent values (e.g. “null”, “none”). Use this worker in workflow branching logic to guard against undefined or missing string values before downstream processing.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| String | string | scalar | — | The scalar string value to evaluate; leave empty or unset to test for a missing/undefined input. | |
| Possible Null Values | null_values | scalar | null,none | Comma-separated list of values that should be treated as null/empty (e.g. ‘null,none’); defaults to ‘null,none’ and is case-insensitive. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| string_is_empty_output_1 | string_is_empty_output_1 | scalar | Boolean-like scalar result (true/false) indicating whether the input string is empty or matches one of the defined null values. |
Disciplines¶
- data.dataset.transform
- platform.workflow
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=string_is_empty
Auto-generated from transformation schema. Worker id: string_is_empty. Schema hash: 8914e472662f. Hand-curated docs in workerexamples/ override this page when present.