function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); } export default function toString(input) { if (_typeof(input) === 'object' && input !== null) { if (typeof input.toString === 'function') { input = input.toString(); } else { input = '[object Object]'; } } else if (input === null || typeof input === 'undefined' || isNaN(input) && !input.length) { input = ''; } return String(input); }