nonEmpty

Creates a non-empty validation action.

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

Generics

With nonEmpty you can validate that a string or array is non-empty. If the input is empty, you can use message to customize the error message.

The following examples show how nonEmpty can be used.

Schema to validate that a string is non-empty.

const StringSchema = v.pipe(
  v.string(),
  v.nonEmpty('The string should contain at least one character.')
);

Schema to validate that an array is non-empty.

const ArraySchema = v.pipe(
  v.array(v.number()),
  v.nonEmpty('The array should contain at least one item.')
);

The following APIs can be combined with nonEmpty.