Method randomize

src/Form.js:207–212

* Randomizes visible randomizable fields. * @return {Form} Fluent interface

()

   * @return {Form} Fluent interface
   */
  randomize () {
    this._fields
      .filter(field => field.isVisible() && field.isRandomizable())
      .forEach(field => field.randomize())
    return this
  }

  /**
   * Returns the delegate.