.minLength

The .minLength rule is used to ensure that the length of a given string property is greater than or equal to a given value.

Example

import { Validator } from 'fluentvalidation-ts';

type FormModel = {
  password: string;
};

class FormValidator extends Validator<FormModel> {
  constructor() {
    super();

    this.ruleFor('password').minLength(6);
  }
}

const formValidator = new FormValidator();

formValidator.validate({ password: 'supersecret' });
// ✔ {}

formValidator.validate({ password: 'foo' });
// ❌ { password: 'Value must be at least 6 characters long' }

Reference

.minLength(lowerBound: number)

A string validation rule which takes in a lower bound and ensures that the length of the given property is greater than or equal to it.

Example Message

Value must be at least [lowerBound] characters long