String does not start with

Input

value

Validate that value does not start with 'ZZZ'

validation:

stringDoesNotStartWith

Ensure string field does not start with specified prefix

source:value

parameters

prefix

Prefix that the field must not start with

Output

result
Pass
Pass
Pass
String field "value" starts with unwanted prefix "ZZZ"
String field "value" starts with unwanted prefix "ZZZ"
String field "value" starts with unwanted prefix "ZZZ"

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

Ensure string field does not start with specified prefix.

Parameters

• prefix (Prefix, string, optional) — Prefix that the field must not start with. Default: "".

Field selection

• source — Field whose values this operation reads. Use a single field name, a comma-separated list of plain field paths (cash_flow_type, currency) from the multi-select UI, or a regex via Pattern mode. Omit to apply to all fields on the row.
• target — Optional output field. When omitted, the source field is updated in place. Hidden when more than one named source field is selected.

JSON Configuration

{
  "id": "op-stringDoesNotStartWith",
  "type": "validation",
  "action": "stringDoesNotStartWith",
  "params": {
    "prefix": "ZZZ"
  },
  "testInputs": [
    "hello world",
    "safe prefix",
    "no match here",
    "ZZZstart",
    "ZZZvalue",
    "ZZZtext"
  ]
}

Related

• required