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Function: nonEmpty()

nonEmpty<T>(errorMessage): Validator<T[], T[], string>

Defined in: validation/validators/index.ts:335

Validates array is not empty.

Type Parameters​

T​

T

Parameters​

errorMessage​

string

Custom error message

Returns​

Validator<T[], T[], string>

Validator that checks non-empty array

Example​

nonEmpty('List cannot be empty')([1, 2, 3]) // => Valid([1, 2, 3])
nonEmpty('List cannot be empty')([]) // => Invalid(['List cannot be empty'])