Function getEndOfDay

getEndOfDay(date?): Date | undefined
Returns the end day date of the given date
Parameters
- Optionaldate: Date
  the date to inspect
Returns Date | undefined
the end day date of the given date
Example
```
getEndOfDay(new Date(2023, 8, 30, 12, 12, 12));    // Date(2023, 8, 30, 23, 59, 59)
```