Array is empty

Input

value

Validate that value is empty

validation:

arrayIsEmpty

Ensure array field is empty

source:value

Output

result
Pass
Array field "value" is not empty
Array field "value" is not empty
Array field "value" is not empty
Array field "value" is not empty
Array field "value" is not empty

* Sample inputs run locally in your browser using the same operation logic as Fontana Flow.
Results are illustrative, not connected to a workflow.

Ensure array field is empty.

Parameters

This operation has no configurable parameters.

Field selection

• source — Field whose values this operation reads. Omit to apply to all fields on the row.
• target — Optional output field. When omitted, the source field is updated in place.

JSON Configuration

{
  "id": "op-arrayIsEmpty",
  "type": "validation",
  "action": "arrayIsEmpty",
  "params": {},
  "testInputs": [
    "[]",
    "[\"item\"]",
    "[\"a\",\"b\"]",
    "[\"x\"]",
    "[\"only\"]",
    "[\"two\"]"
  ]
}

Related

• required