Namespace Validations

Functions taking some input and returning a Validation

// Validates that a string is not empty
export const nestring = (s: string): V.Validation<string, string> =>
  s.length > 0 ? V.Success(s) : V.Warning(["Must be non-empty"], s);
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When validating, Validation allows you to return:

• Success - the value is valid
• Warning - the value fails validation, but the value is available (e.g. we parsed a date from a string but it's out of the valid range)
• Failure - the value fails validation because the value is unavailable (e.g. we tried to parse a date from a string and failed)