/**
* 脱敏手机号
* @author xkloveme <xkloveme@gmail.com>
* @category mask
* @alias mask_phone
* @param {string} phone 手机号
* @returns {String} 返回脱敏手机号
* @summary mask_phone('13968341859')
* @example
* improt { mask_phone } from 'jxk'
* mask_phone('13968341859') // 139****1859
*/
export default (phone) => {
return phone ? phone.replace(/(\d{3})\d*(\d{4})/, '$1****$2') : null
};