Array length equal to

Input

value

Validate that value has exactly 2 items

validation:

arrayLengthEqualTo

Ensure array field has specified length

source:value

parameters

length

Expected array length

Output

result
Pass
Pass
Pass
Array field "value" length is not equal to 2
Array field "value" length is not equal to 2
Array field "value" length is not equal to 2

* 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 has specified length.

Parameters

• length (number, required) — Expected array length. Examples: 0, 1, 3, 10.

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-arrayLengthEqualTo",
  "type": "validation",
  "action": "arrayLengthEqualTo",
  "params": {
    "length": 2
  },
  "testInputs": [
    "[\"v0\",\"v1\"]",
    "[\"x\",\"y\"]",
    "[\"1\",\"2\"]",
    "[]",
    "[\"a\"]",
    "[\"a\",\"b\",\"c\"]"
  ]
}

Related

• required