validate.not empty

The validate.not-empty Function

Function Group: Validation

validate.not-empty returns a given value if the value is not empty, or an error if the value is empty. Collections with no elements, including empty strings, are considered empty.

Syntax

validate.not-empty(arg1, arg2)

• arg1 is the datum or a reference to a datum.
• arg2 is the error message to return if arg1 evaluates to null.

Given the following data structure:

{
  "driver_ids":
  {
    "first": 999,
    "second": ""
  }
}

If we want to perform an operation but aren't sure whether the value will is empty or not, we can confirm that it isn't (or is) with validate.not-empty:

validate.not-empty(driver_ids.first, "This error message won't be executed")

Will return 999.

validate.not-empty(driver_ids.second, "Value was empty!")

Will return "Value was empty!".