## to-iso-string-x Cross-browser toISOString support. ### `module.exports` ⇒ string ⏏ This method returns a string in simplified extended ISO format (ISO 8601), which is always 24 or 27 characters long (YYYY-MM-DDTHH:mm:ss.sssZ or ±YYYYYY-MM-DDTHH:mm:ss.sssZ, respectively). The timezone is always zero UTC offset, as denoted by the suffix "Z". **Kind**: Exported member **Returns**: string - Given date in the ISO 8601 format according to universal time. **Throws**: - TypeError If date is not a Date object. - RangeError If date is invalid. | Param | Type | Description | | ----- | ------------------- | -------------- | | date | Object | A Date object. | **Example** ```js import toISOString =from 'to-iso-string-x'; toISOString(new Date(0)); // '1970-01-01T00:00:00.000Z' ```