required(modelValue: any): boolean

Returns true if the provided model value is not null, undefined, or an empty string.

Parameters:

Returns:

Boolean - True if the model value is non-nil.

Example:

import app from 'app';

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

function MyCtrl () {
  const vm = this;

  vm.controls = {
    firstName: {
      validators: {
        required
      },
      errors: [
        ['required', 'Please enter your first name.']
      ]
    }
  };
}

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