faker-polyfill.ts

import faker from 'faker';

/**
 * Faker polyfill method `middleName`
 *
 * @method middleName
 * @param {mixed} gender
 * @memberof faker.name
 */
faker.name['middleName'] = function(gender) {
  if (
    typeof faker['definitions'].name.male_middle_name !== 'undefined' &&
    typeof faker['definitions'].name.female_middle_name !== 'undefined'
  ) {
    if (typeof gender !== 'number') {
      gender = faker.random.number(1);
    }
    if (gender === 0) {
      return faker.random.arrayElement(
        faker['locales'][faker.locale].name.male_first_name
      );
    } else {
      return faker.random.arrayElement(
        faker['locales'][faker.locale].name.female_first_name
      );
    }
  }
  return faker.random.arrayElement(faker['definitions'].name.first_name);
};

/**
 * Faker polyfill method `fullName`
 *
 * @method fullName
 * @param {string} firstName
 * @param {string} lastName
 * @param {mixed} gender
 * @memberof faker.name
 */
faker.name['fullName'] = function(firstName, middleName, lastName, gender) {
  // in particular locales first and last names split by gender,
  // thus we keep consistency by passing 0 as male and 1 as female
  if (typeof gender !== 'number') {
    gender = faker.random.number(1);
  }
  lastName = lastName || faker.name.lastName(gender);
  firstName = firstName || faker.name.firstName(gender);
  middleName = middleName || faker.name.firstName(gender);
  return firstName + ' ' + middleName + ' ' + lastName;
};

export default faker;