someItem

Creates a some item validation action.

const Action = v.someItem<TInput, TMessage>(requirement, message);

Generics

Parameters

Explanation

With someItem you can freely validate the items of an array and return true if they are valid or false otherwise. If not some item matches your requirement, you can use message to customize the error message.

Returns

Examples

The following examples show how someItem can be used.

Unsorted array schema

Schema to validate that an array is not sorted.

const UnsortedArraySchema = v.pipe(
  v.array(v.number()),
  v.someItem(
    (item, index, array) => array.length === 1 || item < array[index - 1],
    'The numbers must not be sorted in ascending order.'
  )
);

The following APIs can be combined with someItem.

Schemas

Methods

Utils

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