Function yearsBetween

yearsBetween(start: Date, end: Date): number
Calculates the years between two dates. The date must be equal or past for it to count as a full year.
Parameters
- start: Date
- end: Date
Returns number
Example
```
yearsBetween(new Date('2007-08-01', '2008-07-31')); // 0
yearsBetween(new Date('2007-08-01', '2008-08-01')); // 1
```
- Defined in dates.ts:91