maxLength(value: number): (modelValue: any): boolean

Accepts a number and returns a function that, when provided a model value, returns true if the length of the string representation of the model value is less than or equal to the number.

Parameters:

Returns:

Function - Validator function.

Example:

import app from 'app';

import {
  maxLength
} from '@darkobits/formation-validators';

function MyCtrl () {
  const vm = this;

  const maxMessageLen = 500;

  vm.controls = {
    message: {
      validators: {
        maxLength: maxLength(maxMessageLen)
      },
      errors: [
        ['maxLength', `Messages must be no longer than ${maxMessageLen} characters.`]
      ]
    }
  };
}

app.component('myComponent', {
  controller: MyCtrl,
  controllerAs: 'vm',
  // ...
});